WO2024164395A1 - Integrated power supply control system and stacked hot plug system - Google Patents

Abstract

Provided in the present application are an integrated power supply control system and a stacked hot plug system. The integrated power supply control system comprises a power supply module, a battery module and a control module, wherein the power supply module comprises a voltage conversion module; the battery module is electrically connected to the voltage conversion module in the power supply module, and a signal output end of the power supply module is connected to a signal input end of the control module; a first control end of the control module is connected to a control end of the battery module, and a second control end of the control module is connected to a control end of the power supply module, so as control the battery module and the power supply module by means of the control module in an integrated manner. Therefore, a power supply module and a battery module are controlled on the basis of a shared electronic component, thereby saving on electronic components, and realizing real-time interaction of signals between the power supply module and the battery module.

Description

Integrated power control system and stackable hot-swap system

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese patent application number 202310095286.5, filed with the Chinese Patent Office on February 7, 2023, and entitled “An integrated power supply control system and stacked hot-swap system”, the entire contents of which are incorporated by reference into this application.

Technical Field

The present application relates to the field of battery power supply, and in particular to an integrated power supply control system and a stacked hot-swap system.

Background Art

The energy storage unit in the lithium battery energy storage system includes a battery module and a PCS module (also known as a power module). The control systems of the battery module and the power module are independent. The battery module has an independent control system. By setting current sampling, total voltage sampling, DC contactor, pre-charge circuit, fuse, etc. on the output part of the battery module, the state estimation, energy management, power-on and power-off management, fault diagnosis and processing of the battery module are realized; the input side connected to the power module and the battery module includes current sampling, total voltage sampling, slow start circuit, DC contactor, fuse and other functions, and also has an independent control system, realizing power control, power-on and power-off management, fault diagnosis and processing and other functions. The independent control system of the battery module and the independent control system of the power module exchange information through communication to realize the normal operation of the lithium battery energy storage system.

The solution of independent control systems for battery modules and power modules will lead to repeated use of devices such as current sampling, total voltage sampling, DC contactors, pre-charging circuits, fuses, etc., which increases the cost of the system and reduces the integration of the system. At the same time, the two independent control systems communicate and exchange information that they have processed, making the entire system respond slowly in terms of fault handling and power response. In addition, the two sets of independently running strategies lack unified management, and there may be problems such as logic or timing conflicts, and there are some safety hazards in the system.

Summary of the invention

In view of this, the purpose of the present application is to provide an integrated power supply control system and a stacked hot-swappable system, which can integrate some functions of the power module and the battery module into one control module, and control the power module and the battery module separately based on common electronic components, thereby saving electronic components. The power module and the battery module no longer need to interact through a communication system and communication signals, but instead realize real-time interaction based on common signals, thereby improving response efficiency and avoiding protection logic conflicts.

An integrated power supply control system provided in an embodiment of the present application includes a power supply module, a battery module and a control module; the power supply module includes a voltage conversion module;

The battery module is electrically connected to the voltage conversion module in the power module, the signal output end of the power module is connected to the signal input end of the control module; the first control end of the control module is connected to the control end of the battery module The second control end is connected to the control end of the power module, so as to realize the control of the battery module and the control of the power module through the control module integration.

In some embodiments, in the integrated power control system, the control module for controlling the battery module and the power module and the power module are integrated on one structural component.

In some embodiments, in the integrated power control system, the power module is used to convert the external power supply voltage into a charging voltage matching the battery module through the voltage conversion module to charge the battery module; or convert the discharge voltage of the battery module into an output voltage matching the external power-consuming device to discharge the battery module;

The battery module is used to receive the charging voltage of the power module for charging, or output a discharging voltage to the power module so that the voltage conversion module in the power module converts the discharging voltage into an output voltage matching an external power-consuming device.

In some embodiments, in the integrated power control system, the communication interface of the battery module is connected to the control module, and a battery status signal is output to the control module so that the control module controls the battery module and/or the voltage conversion module according to the battery status signal.

In some embodiments, in the integrated power control system, the power module includes at least one signal acquisition device shared by the power module and the battery module, and the common signal collected by the signal acquisition device is output to the control module;

The control module is used to receive the common signal to generate a first control signal for the battery module and/or a second control signal for the power module based on the common signal.

In some embodiments, in the integrated power supply control system, the signal acquisition device includes: a total voltage sampling device and a current sampling device;

The total voltage sampling device is connected in parallel between the voltage conversion modules of the battery module and the power module to collect the voltage signal shared by the battery module and the power module;

The current sampling device is connected in series in the current loop of the power module to collect the current signal shared by the battery module and the power module.

In some embodiments, in the integrated power supply control system, the total voltage sampling device is used to collect the charging voltage signal or the discharging voltage signal between the battery module and the voltage conversion module when the voltage conversion module charges the battery or when the battery module discharges through the voltage conversion module, and send the charging voltage signal or the discharging voltage signal to the control module, so that the control module generates a first control signal for controlling the battery module and a second control signal for controlling the voltage conversion module based on the charging voltage signal or the discharging voltage signal.

In some embodiments, in the integrated power control system, the current sampling device is used to collect the charging current signal or the discharging current signal between the battery module and the voltage conversion module when the voltage conversion module charges the battery or when the battery module discharges through the voltage conversion module, and send the charging current signal or the discharging current signal to the control module, so that the control module generates a first control of the battery module based on the charging current signal or the discharging current signal. A control signal and a second control signal of the control voltage conversion module.

In some embodiments, in the integrated power control system, a first input side switch is connected in series between the positive electrode of the battery module and the first end of the voltage conversion module, and a second input side switch is connected in series between the negative electrode of the battery module and the second end of the voltage conversion module;

Among them, at least one total voltage sampling device is connected in parallel between the input end of the first input side switch and the negative electrode of the battery module; and at least one total voltage sampling device is connected in parallel between the first end of the voltage conversion module and the input end of the second input side switch.

In some embodiments, in the integrated power supply control system, the power supply module also includes a protection unit, which is connected in series between the battery module and the voltage conversion module, and/or in series with the output side of the voltage conversion module to protect the battery module and the voltage conversion module in the power supply module at the same time when the charging current or discharging current of the battery module is too large.

In some embodiments, in the integrated power control system, the power module further comprises a slow start module; the slow start module is connected in series between the battery module and the voltage conversion module;

The soft start module is used to control the rising slope and amplitude of the discharge current output by the battery module, and to control the anti-jitter delay power-on of the battery module when the voltage conversion module charges the battery module.

In some embodiments, in the integrated power control system, the power module further comprises a filter module; the filter module is connected in series between the battery module and the voltage conversion module;

The filter module is used to filter the discharge current output by the battery module, and to filter the charging current output by the voltage conversion module when the voltage conversion module charges the battery module.

In some embodiments, in the integrated power supply control system, the control module includes a first sub-control module and a second sub-control module, the first sub-control module is connected to the signal output end of at least part of the signal in the power supply module, the second sub-control module is connected to the signal output end of at least part of the signal in the power supply module, and the first sub-control module and the second sub-control module control the connection.

In some embodiments, in the integrated power supply control system, the system further includes a thermal management module, and the thermal management module is connected to the third control terminal of the control module.

In some embodiments, a stacked hot-swap system is further provided, the stacked hot-swap system comprising the integrated power supply control system, the stacked hot-swap system comprising a plurality of modules and a base, and along the height direction of the base, the plurality of modules are sequentially stacked on the base from bottom to top;

Any two adjacent modules and the base and the module arranged near the base are connected through a hot-swappable structural component; at least one of the multiple modules is a power module integrated with a control module in the integrated power control system, and the rest are battery modules.

In some embodiments, in the stacked hot-swap system, any two adjacent modules are connected by The hot-swappable structural component realizes assembly connection and electrical connection.

In some embodiments, in the stacked hot-swap system, a thermal insulation layer is provided between the power module and the battery module.

In some embodiments, in the stacked hot-swap system, the hot-swap structural assembly includes a first connecting terminal, a second connecting terminal, and a locking member;

Wherein, the first connection terminal is arranged on one of the modules, and the second connection terminal is arranged on another module adjacent to the module or on the base adjacent to the module;

The first connecting terminal and the second connecting terminal are plugged into each other and locked by the locking member.

Based on this, the embodiment of the present application provides an integrated power control system and a stacked hot-swappable system; wherein the integrated power control system includes a power module, a battery module and a control module; the power module includes a voltage conversion module; the battery module and the voltage conversion module in the power module are electrically connected, and the signal output end of the power module is connected to the signal input end of the control module; the first control end of the control module is connected to the control end of the battery module, and the second control end is connected to the control end of the power module, so as to realize the control of the battery module and the control of the power module through the integration of the control module, so that the control function of the traditional battery module and the power module are integrated into one From the beginning, the signals collected by the same functional components in the power module are shared by the battery module and the power module, thereby reducing the use of similar functional components or assemblies in the loop and reducing the system cost; through the integration of the control function of the battery module and the control function of the power module, the problem that the signals in the traditional solution interact through communication and cannot interact in real time is solved; in the system of the new architecture, the collected signals such as current and voltage are shared, so as to realize the coordination of the control functions of the battery module and the power module, avoid the conflict of protection logic, and facilitate the formulation of the optimal protection action execution strategy, thereby improving the response speed of the system, especially improving the speed of the system executing protection actions when the system fails, thereby improving the reliability of fault protection.

The stacked hot-swap system realizes the express communication and electrical connection as well as the structural connection between the battery module, the power module and the base through the hot-swap structural components, which has higher installation efficiency and is convenient for adjusting the number of battery modules and changing the capacitance.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

FIG1 shows a circuit diagram of an integrated power supply control system according to an embodiment of the present application;

FIG2 shows a schematic diagram of the circuit structure of an integrated power supply control system according to an embodiment of the present application;

FIG3 shows a schematic structural diagram of a stacked hot-swap system according to an embodiment of the present application;

FIG4 shows a hot-swap structural assembly according to an embodiment of the present application;

FIG5 shows a schematic diagram of a thermal insulation layer of a stacked hot-swap system according to an embodiment of the present application.

DETAILED DESCRIPTION

To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the drawings in the present application only serve the purpose of explanation and description and are not used to limit the scope of protection of the present application. In addition, it should be understood that the schematic drawings are not drawn in real proportion. The flowchart used in this application shows the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowchart can be implemented out of sequence, and the steps without logical context can be reversed in order or implemented simultaneously. In addition, those skilled in the art can add one or more other operations to the flowchart under the guidance of the content of the present application, or remove one or more operations from the flowchart.

In addition, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

It should be noted that the term "comprising" will be used in the embodiments of the present application to indicate the existence of the features declared thereafter, but does not exclude the addition of other features.

The energy storage unit in the lithium battery energy storage system includes a battery module and a PCS module (also known as a power module). The control systems of the battery module and the power module are independent. The battery module has an independent control system. By setting current sampling, total voltage sampling, DC contactor, pre-charge circuit, fuse, etc. on the output part of the battery module, the state estimation, energy management, power-on and power-off management, fault diagnosis and processing of the battery module are realized; the input side connected to the power module and the battery module includes current sampling, total voltage sampling, slow start circuit, DC contactor, fuse and other functions, and also has an independent control system, realizing power control, power-on and power-off management, fault diagnosis and processing and other functions. The independent control system of the battery module and the independent control system of the power module exchange information through communication to realize the normal operation of the lithium battery energy storage system.

The solution of independent control systems for battery modules and power modules will lead to repeated use of devices such as current sampling, total voltage sampling, DC contactors, pre-charging circuits, fuses, etc., which increases the cost of the system and reduces the integration of the system. At the same time, the two independent control systems communicate and exchange information that they have processed, making the entire system respond slowly in terms of fault handling and power response. In addition, the two sets of independently running strategies lack unified management, and there may be problems such as logic or timing conflicts, and there are some safety hazards in the system.

Based on this, the embodiment of the present application provides an integrated power supply control system, wherein the battery module is electrically connected to the voltage conversion module in the power supply module, the signal output end of the power supply module is connected to the signal input end of the control module; the first control end of the control module is connected to the control end of the battery module, and the second control end is connected to the control end of the power supply module. The two ends are connected to each other so as to realize the control of the battery module and the power module through the control module integration. In this way, the control function of the traditional battery module is integrated with the power module, and the signals collected by the similar functional components in the power module are shared by the battery module and the power module, thereby reducing the use of similar functional components or assemblies in the loop and reducing the system cost; through the integration of the control function of the battery module and the control function of the power module, the problem that the signals in the traditional solution interact through communication and cannot realize real-time signal interaction is solved; in the system of the new architecture, the collected signals such as current and voltage are shared, so as to realize the coordination of the control functions of the battery module and the power module, avoid the conflict of protection logic, and facilitate the formulation of the optimal protection action execution strategy, thereby improving the response speed of the system, especially improving the speed of the system executing the protection action when the system fails, thereby improving the reliability of fault protection.

Please refer to Figure 1, which shows an integrated power supply control system described in an embodiment of the present application, wherein the system includes a power supply module 101, a battery module 102 and a control module 103; the power supply module 101 includes a voltage conversion module 104; the battery module 102 and the voltage conversion module 104 in the power supply module 101 are electrically connected, and the signal output end of the power supply module 101 is connected to the signal input end of the control module 103; the first control end of the control module 103 is connected to the control end of the battery module 102, and the second control end is connected to the control end of the power supply module 101, so as to realize the control of the battery module 102 and the control of the power supply module 101 through the integration of the control module 103.

In the embodiment of the present application, the number of the battery modules is one or more; usually, the number of the battery modules is at least 2.

In the embodiment of the present application, the control module integrates the control function of the power module and at least part of the control function of the battery module. Therefore, the control module is used to control the battery module and the power module.

In the embodiment of the present application, the control module for controlling the battery module and the power module and the power module are integrated on one structural component.

Since the control module integrates the control functions of the battery module and the power module, it can be considered that, therefore, part of the control functions of the battery module and the control functions of the power module are integrated into one structural component.

In the embodiment of the present application, in the integrated power control system, the power module is used to convert the external power supply voltage into a charging voltage matching the battery module through the voltage conversion module to charge the battery module; or convert the discharge voltage of the battery module into an output voltage matching the external power-consuming device to discharge the battery module;

The battery module is used to receive the charging voltage of the power module for charging, or output a discharging voltage to the power module so that the voltage conversion module in the power module converts the discharging voltage into an output voltage matching an external power-consuming device.

In the prior art, when a battery is used to power a device, the battery is usually directly electrically connected to the device so that the device is powered by the direct current output by the battery. However, some devices need to be connected to alternating current to drive them when they are working. Similarly, when charging a battery, the battery is usually charged by alternating current; however, in some cases, the battery also needs to be charged by direct current, such as charging one battery by another.

Based on this, the voltage conversion module can be a DC/DC conversion module, or a DC/AC energy storage converter. It can be a hybrid inverter with integrated photovoltaic energy storage, and can adopt a unidirectional voltage conversion module or a bidirectional voltage conversion module.

In the embodiment of the present application, the battery module has the functions of sampling, balancing, communication, control, etc. The power supply module has the functions of power conversion or voltage conversion, communication and control protection.

In the embodiment of the present application, the control module integrates the control function of the battery module and the control function of the power module, and also has BMS core functions such as power on and off control, SOX core algorithm, balancing control, fault diagnosis and processing.

In order to manage the battery module, it is also necessary to estimate the battery status and diagnose faults based on the battery cell voltage, temperature and current of the battery module; based on this, the communication interface of the battery module is connected to the control module, and the battery status signal is output to the control module, so that the control module controls the battery module and/or the voltage conversion module according to the battery status signal.

Exemplarily, the control module detects the capacity of the battery module based on the battery cell voltage and current and a preconfigured algorithm to determine whether the battery is fully charged. If the battery is fully charged, the control module stops charging the battery. The control module determines the parameters of the voltage conversion module in the power module based on the battery cell voltage and current of the battery module. For example, when it is detected that two battery cells of the battery module are fully charged and only one battery cell needs to be charged, the parameters of the voltage conversion module are adjusted according to the preset algorithm.

In the embodiment of the present application, the integrated power control system, the power module includes at least one signal acquisition device shared by the power module and the battery module, and the common signal collected by the signal acquisition device is output to the control module;

The control module is used to receive the common signal to generate a first control signal for the battery module and/or a second control signal for the power module based on the common signal.

The common signal is a signal used to realize the control function of the power module and the control function of the battery module, including a voltage signal, a current signal, etc. However, this does not mean that the common signal collected at a time point must be used to realize the control function of the power module and the battery module at the same time; illustratively, when used to realize the control function of the battery module, a common signal of a first frequency is used; when used to realize the control function of the power module, a common signal of a second frequency is used.

Based on the common signal, generating a first control signal for the battery module and/or generating a second control signal for the power module, comprising: directly processing the common signal to generate the first control signal for the battery module and/or generating the second control signal for the power module;

Alternatively, the common signal is processed to generate a first control signal for the battery module, a first control result is obtained, and a second control signal for the power module is generated according to the first control result;

Alternatively, the common signal is processed to generate a second control signal for the power module, a second control result is obtained, and a first control signal for the battery module is generated according to the second control result.

In the embodiment of the present application, based on the common signal, generating a first control signal for the battery module and/or generating a second control signal for the power module includes: processing at least one of the common signals to generate a first control signal for the battery module. The first control signal and/or the second control signal for the power module are generated.

That is to say, in some cases, in the embodiments of the present application, the control module controls the battery module and/or the power module based on the common signal collected by the signal acquisition device and the battery status signal sent by the battery module.

The remaining battery capacity is determined by using a SOX battery state estimation algorithm according to the output voltage, output current and temperature of the battery power module.

Exemplarily, the SOX battery state estimation algorithm pre-deployed in the control module can calculate the remaining battery capacity based on the output voltage, output current and temperature of the battery module, and the output voltage, output current and temperature can be determined based on the voltmeter and ammeter in the power module, and the temperature signal received from the battery module, wherein the temperature signal is collected by the temperature sensor in the battery module.

Then, the target current value is determined from a preset current adjustment database according to the remaining battery capacity, and the current magnitude of the alternating current is adjusted to the target current value.

Exemplarily, a mapping relationship between the remaining battery capacity and the current value is stored in the current regulation database. After the current remaining battery capacity is determined, the current target voltage value and target current value can be determined from the voltage regulation database according to the current remaining battery capacity, and the voltage and current output by the voltage conversion module can be adjusted to the target voltage value and target current value.

In this way, for the signals required by the battery module and the power module in their respective control functions, some are the same type of signals, some need to be processed again according to the processing results of the other party, and some signals require timing coordination during processing; in the traditional solution, battery control and power supply exchange signals through communication, the communication interaction speed is slow, and the communication process is prone to failure. The signal is delayed or interfered, and the timing consistency cannot be guaranteed. In addition, when some communication failures occur, information cannot be collected interactively.

In the embodiment of the present application, there are multiple types of signal acquisition devices, and multiple common signals are collected based on the multiple signal acquisition devices. The common signals include total voltage signals, high-frequency current signals, low-frequency current signals, etc.

Please refer to FIG. 2 , the integrated power supply control system, the signal acquisition device includes: a total voltage sampling device 201 and a current sampling device;

The total pressure sampling device 201 is connected in parallel between the battery module 207 and the voltage conversion module 206 of the power module 208 to collect the voltage signal shared by the battery module 207 and the power module 208;

The current sampling device is connected in series in the current loop of the power module 208 to collect the current signal shared by the battery module 207 and the power module 208 .

Specifically, in the embodiment of the present application, the total voltage sampling device 201 is used to collect the charging voltage signal or the discharging voltage signal between the battery module and the voltage conversion module when the voltage conversion module is charging the battery, or when the battery module is discharging through the voltage conversion module, and send the charging voltage signal or the discharging voltage signal to the control module, so that the control module generates a first control signal for controlling the battery module and a control voltage conversion signal based on the charging voltage signal or the discharging voltage signal. The second control signal of the switching module.

The current sampling device is used to collect a charging current signal or a discharging current signal between the battery module and the voltage conversion module when the voltage conversion module charges the battery, or when the battery module discharges through the voltage conversion module, and send the charging current signal or the discharging current signal to the control module, so that the control module generates a first control signal for controlling the battery module and a second control signal for controlling the voltage conversion module based on the charging current signal or the discharging current signal.

Specifically, the current sampling device includes a high-frequency current sampling device 202 and a low-frequency current sampling device 203; the high-frequency current sampling device collects high-frequency current signals, mainly for realizing the control of the voltage conversion module; the low-frequency current sampling device collects low-frequency current signals, for realizing other functions, such as SOX core algorithm, balancing control, fault diagnosis and processing and other BMS core functions.

That is to say, the functions of the control module are as follows: First, the receiving power module collects the voltage signal input or output of the battery module, the status of the switch and fuse in the power circuit, the high-frequency or low-frequency current signal, etc.; Second, based on the cell voltage, temperature and current of the battery module, the battery status estimation and fault diagnosis can be realized; Third, based on the voltage, current, battery status, switch, fuse and other status, the system status can be determined;

To sum up, the power module has the functions of power conversion or voltage conversion, communication and control protection; the power module integrates the battery master control function, that is, the BMS core functions such as power on and off control, SOX core algorithm, balancing control, fault diagnosis and processing.

Based on this, in the embodiment of the present application, in the process of the control module controlling the power module and the battery module, the collected signals such as current and voltage and the battery status signal are shared, which can realize real-time interaction of information without being affected by communication failures.

In traditional solutions, the battery and power supply perform protection actions independently, which may cause logical conflicts or damage to the system. For example, if the fuse in the battery module is disconnected but the fuse in the power module is not disconnected in time, the power module will be damaged.

In an embodiment of the present application, the power module also includes a plurality of components or assemblies shared by the power module and the battery module for performing protection actions, such as switches, fuses, etc., further integrating the control functions of the traditional battery module and the power module, reducing the use of similar functional components or assemblies in the loop, and reducing system costs; at the same time, it avoids the logical conflicts that may exist when the battery and the power supply independently perform protection actions, realizes the coordination of the corresponding control functions of the two batteries and the power supply, avoids protection logic conflicts and finds the optimal protection action execution strategy.

Specifically, in the integrated power control system, a first input side switch SB1 is connected in series between the positive electrode of the battery module and the first end of the voltage conversion module, and a second input side switch SB2 is connected in series between the negative electrode of the battery module and the second end of the voltage conversion module;

Among them, at least one total voltage sampling device 201 is connected in parallel between the input end of the first input side switch SB1 and the negative electrode of the battery module; and at least one total voltage sampling device 201 is connected in parallel between the first end of the voltage conversion module and the input end of the second input side switch SB2.

When the first input side switch SB1 and the second input side switch SB2 are closed, the voltage conversion module of the power module and the battery module are connected, and the battery module is charged or discharged normally.

In some embodiments, an output side switch SB3 is provided on the output side of the voltage conversion module of the power module, so that when the output side switch SB3 is closed, the battery module is charged normally or charges an external device.

It should be noted that the input side switch and the output side switch SB3 in the embodiment of the present application are determined based on the discharge process of the battery module.

The integrated power supply control system described in the embodiment of the present application further includes a protection unit 204 in the power supply module. The protection unit 204 is connected in series between the battery module and the voltage conversion module, and/or is connected in series with the output side of the voltage conversion module to protect the battery module and the voltage conversion module in the power supply module at the same time when the charging current or discharging current of the battery module is too large.

2 , the protection unit 204 is disposed between the input side switch and the voltage conversion module 206, and at the output side of the voltage conversion module 206. The protection unit 204 is specifically an overcurrent passive protection unit.

Exemplarily, the protection unit 204 may be a fuse.

With respect to the protection unit 204, in the conventional solution, the control system of the battery module and the protection unit 204 in the power module are structurally independent, with two personnel operation interfaces, requiring two personnel to protect personnel, etc. In the embodiment of the present application, after the structure is integrated into one, one protection unit 204 is shared by the battery module and the power supply, leaving only one personnel operation interface to the outside, and only one personnel protection design is required.

In the integrated power control system described in the embodiment of the present application, the power module further includes a slow start module 205; the slow start module 205 is connected in series between the battery module and the voltage conversion module;

The soft start module 205 is used to control the rising slope and amplitude of the discharge current output by the battery module, and to control the anti-jitter delay power-on of the battery module when the voltage conversion module charges the battery module.

Please refer to FIG. 2 , specifically, the soft start module 205 is connected in parallel to both ends of the first input side switch SB1 .

In the integrated power control system described in the embodiment of the present application, the power module further includes a filter module; the filter module is connected in series between the battery module and the voltage conversion module;

The filter module is used to filter the discharge current output by the battery module, and to filter the charging current output by the voltage conversion module when the voltage conversion module charges the battery module.

Specifically, please refer to Figure 2, the filtering module is a bus capacitor module C1, one end of the bus capacitor module C1 is electrically connected to the first input side switch SB1, and the other end is electrically connected to the second input side switch SB2, so as to be connected in parallel at both ends of the battery module.

In the integrated power supply control system described in the embodiment of the present application, the control module includes a first sub-control module and a second sub-control module, the first sub-control module is connected to the signal output end of at least part of the signal in the power supply module, the second sub-control module is connected to the signal output end of at least part of the signal in the power supply module, and the first sub-control module and controlling the connection with the second sub-control module.

Here, the first and second do not represent the importance of the controller, and are not used to distinguish between the core controller and the non-core controller, but are only used to characterize the different functions implemented by the two controllers. Specifically, the first sub-control module adopts an ARM chip, and the second sub-control module adopts a DSP chip. The second sub-control module (DSP chip) is used to control the voltage conversion module to realize power conversion and high-frequency current sampling. The first sub-control module (ARM chip) mainly integrates the functions of the BMS and the power management system, is responsible for the low-frequency current and voltage sampling on the input and output sides, communicates with the battery module, is responsible for the external interface of the power module, is responsible for the control of the thermal management system, is responsible for the estimation of the battery SOX, and the fault diagnosis of the energy storage system. Among them, the first sub-control module (ARM chip) and the second sub-control module (DSP chip) will transmit information such as power or current limit, voltage limit, system status, etc.

In the embodiment of the present application, the cell temperature and cell voltage sent by the battery module, combined with the input side voltage and current collected by the power module, can be used to estimate SOX; the battery status signal sent by the battery module and the signal collected by the power module are used for fault diagnosis. The integrated architecture adopted in the embodiment of the present application reduces the communication time between the battery system and the power system.

The integrated power supply control system described in the embodiment of the present application further includes a thermal management module 209, and the thermal management module 209 is connected to the third control terminal of the control module.

In the embodiment of the present application, the thermal management module 209 includes a cooling fan and the like.

The control module controls the power of the cooling fan according to the collected temperature signal and other signals to ensure the cooling effect.

In the embodiment of the present application, the power module further includes an external interface 210, and the external interface 210 is connected to the control module to output information of the control module to the outside.

Please refer to Figure 2. In the embodiment of the present application, the power module 208 and the battery module 207 are connected via a hot-swappable structural component 211; a communication or power supply interface 212 is provided in the hot-swappable structural component 211 to achieve communication and electrical connection between the power module 208 and the battery module 207.

Specifically, the communication or power supply interface 212 includes a first connection terminal and a second connection terminal.

The embodiment of the present application also provides a stacked hot-swappable system, the stacked hot-swappable system includes the integrated power supply control system, please refer to FIG. 3, the stacked hot-swappable system includes a plurality of modules 301 and a base 302, and along the height direction of the base, the plurality of modules are sequentially stacked on the base from bottom to top;

Any two adjacent modules 301 and the base 302 and the module 301 arranged near the base are connected through a hot-swappable structural component 303; at least one of the multiple modules 301 is a power module integrated with a control module in the integrated power control system, and the rest are battery modules.

Specifically, in FIG. 3 of the embodiment of the present application, the top module 301 is a power module integrated with a control module, and the second and third modules 301 from the top are battery modules.

The power module integrated with the control module, that is, the control module for controlling the battery module and the power module and the power module are integrated on one structural member; in this way, when the power module and the battery module are connected through the hot-swappable structural assembly Finally, the communication and electrical connection between the control module and the battery module are also realized.

In the embodiment of the present application, any two adjacent modules are assembled and electrically connected via a hot-swappable structural component.

Please refer to FIG. 4 , the hot-swap structural assembly includes a first connecting terminal 402 , a second connecting terminal and a locking member 401 ;

The first connection terminal 402 is disposed on one of the modules, and the second connection terminal is disposed on another module adjacent to the module or on the base adjacent to the module;

The first connection terminal 402 and the second connection terminal are plugged into each other and locked by the locking member 401 .

After the first connection terminal 402 and the second connection terminal are plugged in, they form a communication or power supply interface to achieve signal transmission between the battery module and the control module and power supply during charging and discharging.

Specifically, the communication and electrical connection between the bottom of the battery module and the base are connected through a hot-swappable structural assembly, and the first connecting terminal and the second connecting terminal of the hot-swappable structural assembly are respectively a male head and a female head, and the male head and the female head are respectively arranged on the bottom of the battery module and the base, and the structural connection is connected through a locking member; the communication and electrical connection between the battery modules are realized through the hot-swappable structural assembly at the top of the lower layer of battery modules and the bottom of the upper layer of modules, and the male head and the female head of the hot-swappable structural assembly are respectively arranged at the bottom of one module and the top of another, and the structural connection is connected through a locking member; the communication and electrical connection between the battery module and the power module are connected through the hot-swappable structural assembly, and the male head and the female head of the hot-swappable structural assembly are respectively arranged at the top of the battery module and the bottom of the power module, and the structural connection is connected through a locking member.

Non-stacked quick-plug products have complex wiring, low installation efficiency, and difficulty in expanding battery capacity. At the same time, the power supply generates severe heat, which has a great impact on the uniformity of battery operating temperature. The embodiment of the present application uses hot-swappable structural components to achieve rapid connection between battery modules and power modules, which has higher installation efficiency and is convenient for adjusting the number of battery modules and changing the capacitance.

Please refer to Figures 5 and 3. An insulation layer 503 is arranged between the power module 501 and the battery module 502. The insulation layer 503 at the bottom of the power module 501 prevents the heat of the power module 501 from being transferred to the battery module 502. The bottom battery module 502 is connected to the base 506. At the same time, the back, side or top of the power module 501 can be used as a heat dissipation surface to achieve effective heat dissipation of the power module 501.

In the embodiment of the present application, the power module 501 is further provided with a display screen 504 and a wiring area 505. The display screen 504 is used to display the collected signals and processing results, and to perform human-computer interaction.

Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working process of the system and device described above can refer to the corresponding process in the method embodiment, and will not be repeated in this application. In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the modules is only a logical function division. There may be other division methods in actual implementation. For example, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual relationship between what is shown or discussed is not necessarily a logical function division. The coupling or direct coupling or communication connection between the devices may be an indirect coupling or communication connection through some communication interface, device or module, which may be electrical, mechanical or other forms.

The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a platform server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard drives, ROM, RAM, magnetic disks, or optical disks.

The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (18)

An integrated power supply control system, characterized in that the system comprises a power supply module, a battery module and a control module; the power supply module comprises a voltage conversion module; The voltage conversion module in the battery module and the power module are electrically connected, and the signal output end of the power module is connected to the signal input end of the control module; the first control end of the control module is connected to the control end of the battery module, and the second control end is connected to the control end of the power module, so as to realize the control of the battery module and the control of the power module through the integration of the control module. The integrated power control system according to claim 1 is characterized in that the control module for controlling the battery module and the power module and the power module are integrated on one structural component. The integrated power supply control system according to claim 1 is characterized in that the power supply module is used to convert the external power supply voltage into a charging voltage matching the battery module through the voltage conversion module to charge the battery module; or convert the discharge voltage of the battery module into an output voltage matching the external power-consuming device to discharge the battery module; The battery module is used to receive the charging voltage of the power module for charging, or output a discharging voltage to the power module so that the voltage conversion module in the power module converts the discharging voltage into an output voltage matching an external power-consuming device. The integrated power supply control system according to claim 1 is characterized in that the communication interface of the battery module is connected to the control module, and outputs a battery status signal to the control module, so that the control module controls the battery module and/or the voltage conversion module according to the battery status signal. The integrated power supply control system according to claim 1 is characterized in that the power supply module comprises at least one signal acquisition device shared by the power supply module and the battery module, and the common signal collected by the signal acquisition device is output to the control module; The control module is used to receive the common signal to generate a first control signal for the battery module and/or a second control signal for the power module based on the common signal. The integrated power supply control system according to claim 5 is characterized in that the signal acquisition device comprises: a total voltage sampling device and a current sampling device; The total voltage sampling device is connected in parallel between the voltage conversion modules of the battery module and the power module to collect the voltage signal shared by the battery module and the power module; The current sampling device is connected in series in the current loop of the power module to collect the current signal shared by the battery module and the power module. The integrated power supply control system according to claim 6, characterized in that: The total voltage sampling device is used to collect the charging voltage signal or the discharging voltage signal between the battery module and the voltage conversion module when the voltage conversion module is charging the battery, or when the battery module is discharging through the voltage conversion module, and The charging voltage signal or the discharging voltage signal is sent to the control module, so that the control module generates a first control signal for controlling the battery module and a second control signal for controlling the voltage conversion module based on the charging voltage signal or the discharging voltage signal. The integrated power supply control system according to claim 6, characterized in that: The current sampling device is used to collect a charging current signal or a discharging current signal between the battery module and the voltage conversion module when the voltage conversion module charges the battery, or when the battery module discharges through the voltage conversion module, and send the charging current signal or the discharging current signal to the control module, so that the control module generates a first control signal for controlling the battery module and a second control signal for controlling the voltage conversion module based on the charging current signal or the discharging current signal. The integrated power supply control system according to claim 6 is characterized in that a first input side switch is connected in series between the positive electrode of the battery module and the first end of the voltage conversion module, and a second input side switch is connected in series between the negative electrode of the battery module and the second end of the voltage conversion module; Among them, at least one total voltage sampling device is connected in parallel between the input end of the first input side switch and the negative electrode of the battery module; and at least one total voltage sampling device is connected in parallel between the first end of the voltage conversion module and the input end of the second input side switch. The integrated power supply control system according to claim 1 is characterized in that the power supply module also includes a protection unit, which is connected in series between the battery module and the voltage conversion module, and/or in series with the output side of the voltage conversion module, so as to protect the battery module and the voltage conversion module in the power supply module at the same time when the charging current or discharging current of the battery module is too large. The integrated power control system according to claim 1 is characterized in that the power module further comprises a slow start module; the slow start module is connected in series between the battery module and the voltage conversion module; The soft start module is used to control the rising slope and amplitude of the discharge current output by the battery module, and to control the anti-jitter delay power-on of the battery module when the voltage conversion module charges the battery module. The integrated power control system according to claim 1 is characterized in that the power module further comprises a filter module; the filter module is connected in series between the battery module and the voltage conversion module; The filter module is used to filter the discharge current output by the battery module, and to filter the charging current output by the voltage conversion module when the voltage conversion module charges the battery module. The integrated power supply control system according to claim 1 is characterized in that the control module includes a first sub-control module and a second sub-control module, the first sub-control module is connected to the signal output end of at least part of the signal in the power supply module, the second sub-control module is connected to the signal output end of at least part of the signal in the power supply module, and the first sub-control module and the second sub-control module are controlled and connected. The integrated power supply control system according to claim 1 is characterized in that the system also includes a thermal management module, and the thermal management module is connected to the third control terminal of the control module. A stacked hot-swap system, characterized in that the stacked hot-swap system comprises as claimed in claims 1 to The integrated power supply control system described in any one of 14, wherein the stacked hot-swappable system comprises a plurality of modules and a base, and along the height direction of the base, the plurality of modules are stacked on the base in sequence from bottom to top; Any two adjacent modules and the base and the module arranged near the base are connected through a hot-swappable structural component; at least one of the multiple modules is a power module integrated with a control module in the integrated power control system, and the rest are battery modules. The stacked hot-swap system according to claim 15 is characterized in that any two adjacent modules are assembled and electrically connected through a hot-swap structural component. The stacked hot-swap system according to claim 15 is characterized in that a thermal insulation layer is provided between the power module and the battery module. The stacked hot-swap system according to claim 15, wherein the hot-swap structural assembly comprises a first connecting terminal, a second connecting terminal and a locking member; Wherein, the first connection terminal is arranged on one of the modules, and the second connection terminal is arranged on another module adjacent to the module or on the base adjacent to the module; The first connecting terminal and the second connecting terminal are plugged into each other and locked by the locking member.