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WO2018133230A1 - Procédé et appareil de commande pour système de micro-réseau - Google Patents

Procédé et appareil de commande pour système de micro-réseau Download PDF

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Publication number
WO2018133230A1
WO2018133230A1 PCT/CN2017/081511 CN2017081511W WO2018133230A1 WO 2018133230 A1 WO2018133230 A1 WO 2018133230A1 CN 2017081511 W CN2017081511 W CN 2017081511W WO 2018133230 A1 WO2018133230 A1 WO 2018133230A1
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WIPO (PCT)
Prior art keywords
power
micro
load
energy storage
real
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/081511
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English (en)
Chinese (zh)
Inventor
文武
任鹏
赵志刚
林宝伟
唐文强
张雪芬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Publication of WO2018133230A1 publication Critical patent/WO2018133230A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks

Definitions

  • the present invention relates to the field of automation control, and in particular to a method and apparatus for controlling a microgrid system.
  • the existing microgrid power supply system generally controls the instantaneous energy and power balance of the microgrid power supply system by the fluctuation range of the bus voltage, but since the energy is limited in the off-grid system and the load is not controlled, It is easy to cause a system crash due to improper use of energy. It can be seen that the existing method of controlling the instantaneous voltage of the microgrid power supply system is difficult to finely control the load energy prediction and the overall demand.
  • Embodiments of the present invention provide a method and apparatus for controlling a microgrid system to at least solve the technical problem that the existing method for controlling the instantaneous voltage balance of the microgrid power supply system is difficult to finely control the load energy prediction and the overall demand.
  • a method for controlling a microgrid system includes: a micro-source device, an energy storage device, an electrical load, and a micro-network control device, wherein the method includes: The micro-network control device detects the operating parameters of the micro-grid system, wherein the operating parameters include at least: real-time power generation PW0 of the micro-source device, real-time power PZ of the load that has been turned on, and energy storage device The maximum charging and discharging rated power PE; performing power balance and/or energy balance control on the above micro grid system according to the detected operating parameters.
  • controlling the energy storage device to discharge at a predetermined discharge power PF includes: determining whether the predetermined discharge power PF is greater than a maximum charge and discharge rated power PE of the energy storage device; if greater than, stopping The low priority load supply in the load is turned on.
  • the method further includes: if it is determined that the predetermined charging power PC is smaller than a maximum charging and discharging rated power PE of the energy storage device And determining whether the battery capacity SOC of the energy storage device is greater than a preset value; if the SOC is greater than the preset value, sending a second power limit instruction to the micro source device to limit the micro-source device to a second predetermined real-time
  • performing energy balance control on the microgrid system according to the detected operating parameter includes: predicting a priority of the opened load according to the detected real-time power PZ of the loaded load in the electrical load The amount of power that needs to be consumed in the first preset time period and the remaining power generation amount of the micro-source device in the first preset time period to obtain a corresponding prediction result; and the current remaining power of the energy storage device and the specified priority The power consumed by the load in the second preset time period obtains a corresponding acquisition result; according to the foregoing prediction result and the foregoing acquisition result, each priority load in the opened load is controlled to balance the micro grid system energy of.
  • the method further includes: when PF>0, and PW0+PF ⁇ PZ, or when PC>0, and PW0 ⁇ Abnormal alarm processing is performed on the PZ+PC.
  • a control device for a microgrid system comprising: a micro source device, an energy storage device, an electrical load, and a piconet control device, wherein the device comprises
  • the detecting unit is configured to detect an operating parameter of the microgrid system by using a microgrid control device, where the operating parameter includes at least: a real-time generating power PW0 of the micro-source device, and a real-time power consumption of the loaded load in the electrical load. PZ, the maximum charge and discharge rated power PE of the above energy storage device; and a control unit for performing power balance and/or energy balance control on the micro grid system according to the detected operating parameters.
  • the first control module includes: a first determining submodule, configured to determine whether the predetermined discharge power PF is greater than a maximum charge and discharge rated power PE of the energy storage device; and an electronic supply module configured to determine the predetermined discharge When the power PF is greater than the maximum charge and discharge rated power PE of the energy storage device, power supply to the low priority load in the above-mentioned opened load is stopped.
  • a third determining submodule configured to determine whether the predetermined charging power PC is greater than the maximum charging and discharging rated power PE of the energy storage device, and if it is determined that the predetermined charging power PC is smaller than the foregoing In the case of the maximum charge and discharge rated power PE of the energy storage device
  • control unit includes: a prediction module, configured to predict, according to the detected real-time power PZ of the load that is turned on, the load of the specified priority in the opened load is within a first preset time period The amount of power to be consumed and the remaining power generation amount of the micro-source device in the first preset time period are obtained, and the corresponding prediction result is obtained; the acquiring module is configured to acquire the current remaining power of the energy storage device and the load of the specified priority. The power consumption in the second preset time period is obtained, and the third control module is configured to control each priority load in the opened load according to the foregoing prediction result and the foregoing obtaining result to balance the foregoing The energy of the microgrid system.
  • a prediction module configured to predict, according to the detected real-time power PZ of the load that is turned on, the load of the specified priority in the opened load is within a first preset time period The amount of power to be consumed and the remaining power generation amount of the micro-source device in the first preset time period are obtained, and the corresponding prediction
  • the apparatus further includes: an executing unit, configured to perform power balance control on the microgrid system according to the detected operating parameter, when PF>0, and PW0+PF ⁇ PZ, or when PC> 0, and PW0 ⁇ PZ+PC, the abnormal alarm processing is executed.
  • an executing unit configured to perform power balance control on the microgrid system according to the detected operating parameter, when PF>0, and PW0+PF ⁇ PZ, or when PC> 0, and PW0 ⁇ PZ+PC, the abnormal alarm processing is executed.
  • a storage medium comprising a stored program, wherein the program executes a control method of the microgrid system.
  • a processor for running a program wherein a program of controlling a microgrid system is executed while the program is running.
  • a terminal including: a detecting unit, configured to detect an operating parameter of a microgrid system by using a microgrid control device, where the operating parameter includes at least: real-time power generation of the micro-source device Power PW0, real-time power PZ of the load that has been turned on in the electrical load, maximum charge and discharge rated power PE of the energy storage device; control unit for power balancing and/or energy of the microgrid system based on the detected operating parameters Balance control; a processor, a processor running program, wherein the program runs a control method of the micro grid system for data output from the detecting unit and the control unit.
  • the operating parameter includes at least: real-time power generation of the micro-source device Power PW0, real-time power PZ of the load that has been turned on in the electrical load, maximum charge and discharge rated power PE of the energy storage device
  • control unit for power balancing and/or energy of the microgrid system based on the detected operating parameters Balance control
  • a processor a processor running program, wherein the
  • a terminal including: a detecting unit, configured to detect an operating parameter of a microgrid system by using a microgrid control device, where the operating parameter includes at least: real-time power generation of the micro-source device Power PW0, real-time power PZ of the load that has been turned on in the electrical load, maximum charge and discharge rated power PE of the energy storage device; control unit for power balancing and/or energy of the microgrid system based on the detected operating parameters Balance control; a storage medium for storing a program, wherein the program performs a control method of the micro grid system for data output from the detecting unit and the control unit at runtime.
  • the operating parameter includes at least: real-time power generation of the micro-source device Power PW0, real-time power PZ of the load that has been turned on in the electrical load, maximum charge and discharge rated power PE of the energy storage device
  • control unit for power balancing and/or energy of the microgrid system based on the detected operating parameters Balance control
  • a storage medium for storing
  • a control method of a micro grid system is adopted, wherein the micro grid system includes: a micro source device, an energy storage device, a power load, and a micro network control device, wherein the method includes: controlling through a micro network
  • the device detects operating parameters of the microgrid system, wherein the operating parameters include at least: real-time power generation PW0 of the micro-source device, real-time power PZ of the load that has been turned on in the power load, real-time charging power PC of the energy storage device, and real-time discharge power PF; according to the detected operating parameters, power balance and/or energy balance control of the microgrid system; through the energy prediction and hierarchical management control of the equipment load, the microgrid off-grid operation is stable and reliable.
  • the existing technical problems of controlling the instantaneous voltage balance of the microgrid power supply system are difficult to control the load energy prediction and the overall demand.
  • FIG. 1 is a block diagram of an alternative microgrid system in accordance with an embodiment of the present invention.
  • FIG. 2 is a flow chart of a method of controlling a microgrid system according to an embodiment of the present invention
  • FIG. 3 is a flow chart of an optional control of power balance of a microgrid system in accordance with an embodiment of the present invention
  • FIG. 4 is a flow chart of an optional control of energy balance of a microgrid system in accordance with an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a control device of a microgrid system according to an embodiment of the present invention.
  • an embodiment of a method of controlling a microgrid system there is provided an embodiment of a method of controlling a microgrid system, and it is noted that the steps illustrated in the flowchart of the accompanying drawings may be performed in a computer system such as a set of computer executable instructions, and Although the logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in a different order than the ones described herein.
  • FIG. 1 is a structural diagram of an optional microgrid system according to an embodiment of the present invention.
  • the microgrid system includes: a micro-source device 120, an energy storage device 140, an electrical load 160, and a piconet control.
  • Apparatus 180 FIG. 2 is a flowchart of a method for controlling a microgrid system according to an embodiment of the present invention.
  • the control method of the microgrid system includes the following steps:
  • Step S102 The operating parameters of the microgrid system are detected by the microgrid control device, where the operating parameters include at least: a real-time power generation power PW0 of the micro-source device, a real-time power consumption PZ of the load that has been turned on in the power load, and a maximum energy storage device. Charging and discharging rated power PE;
  • Step S104 performing power balance and/or energy balance control on the micro grid system according to the detected operating parameters.
  • the microgrid system includes microsource devices, energy storage devices, electrical loads, and microgrid control devices
  • the microgrid system The operating parameter may be the real-time power generation PW0 of the micro-source device, or the real-time power PZ of the power load that has been turned on in the power load, the maximum charge and discharge rated power of the energy storage device PE, and the energy storage device.
  • the communication between the micro-network control device and the micro-source device, the energy storage device, and the electrical load device may adopt various communication modes such as wired, wireless, and power line carrier.
  • the micro-source devices in the micro-grid system may be photovoltaic power generation, wind power generation, backup generators, etc. These devices can be used as micro-source devices to supply power to the DC bus, but the energy characteristics of the micro-source devices are not necessarily Continuous supply of electrical energy, whose instantaneous power is simultaneously limited by the maximum rating of the conversion device.
  • the energy storage device may include an energy storage battery, an energy storage DC/DC conversion device, a battery management unit, and the like, and the maximum charge and discharge rated power PE is limited by the conversion device.
  • the electrical load device can be configured with an energy monitoring module to collect energy consumption and usage information.
  • the microgrid control device may have a microgrid operating parameter state acquisition module, a microgrid system power control module, a microgrid system energy control module, and a microgrid system fault diagnosis module, which may be used to record the priority level of each load device in the initialization phase, Operating parameters such as rated power, minimum open running time slice, and power consumption forecast for minimum open running time slice.
  • the microgrid system includes: a micro-source device, an energy storage device, a power load, and a micro-grid control device, wherein the method includes: detecting the micro-grid system through the micro-network control device
  • the operating parameters include at least: real-time power generation PW0 of the micro-source device, real-time power PZ of the load that has been turned on in the power load, maximum charge and discharge rated power of the energy storage device PE, real-time charging of the energy storage device Real-time discharge power PF of power PC and energy storage equipment.
  • the power balance and/or energy balance control of the microgrid system is achieved, and when the microgrid system is off-grid, the energy prediction and hierarchical management control of the equipment load are realized, and the microgrid is operated off-grid.
  • the purpose of stability and reliability thus achieving the technical effect of finely controlling the load energy prediction and the overall demand, and solving the existing method of controlling the instantaneous voltage balance of the microgrid power supply system is difficult to refine the load energy prediction and the overall demand.
  • the state parameter of the microgrid system collected by the microgrid control device may further include a predetermined charging power PC of the energy storage battery of the energy storage device, a predetermined discharge power PF of the energy storage battery of the energy storage device, and a storage battery capacity SOC. That is, the method for performing power balance control on the microgrid system may be to determine the micro source based on the detected operating parameters. Whether the real-time power generation power PW0 of the equipment is less than the real-time power consumption PZ of the load that has been turned on in the power load, and the energy storage power is controlled when the real-time power generation power PW0 of the micro-source equipment is smaller than the real-time power consumption PZ of the load that has been turned on in the power load.
  • the device discharges at a predetermined discharge power PF, and the energy storage battery of the energy storage device may discharge at a predetermined discharge power PF, wherein the predetermined discharge power PF may be equal to the real-time power PZ of the opened load in the electrical load minus the micro-source device Real-time power generation power PW0; in the case where the real-time power generation power PW0 of the micro-source device is greater than the real-time power consumption PZ of the load that has been turned on in the power load, the control energy storage device is charged at a predetermined charging power PC, which may be an energy storage device The energy storage battery is charged at a predetermined charging power PC, and the energy storage device can be equal to the real-time power generation power PW0 of the micro-source device minus the real-time power consumption PZ of the activated load in the power load at a predetermined charging power PC.
  • FIG. 3 is a flow chart of an optional control of power balance of a microgrid system in accordance with an
  • controlling the energy storage device to discharge at the predetermined discharge power PF includes: determining whether the predetermined discharge power PF is greater than a maximum charge and discharge rated power PE of the energy storage device; if greater than, stopping to be a low priority among the opened load Load power supply.
  • the predetermined discharge power PF is continuously determined. Whether it is greater than the maximum charge and discharge rated power PE of the energy storage device, when the predetermined discharge power PF is greater than the maximum charge and discharge rated power PE of the energy storage device, the power supply to the low priority load in the opened load is stopped.
  • the energy storage device is controlled to be charged at a predetermined charging power PC, which may be an energy storage battery of the energy storage device. Charging is performed at a predetermined charging power PC.
  • the charging device is controlled to charge with the predetermined charging power PC, it is determined whether the predetermined charging power PC is greater than the maximum charging and discharging rated power PE of the energy storage device, and the predetermined charging power PC is greater than the maximum charging and discharging rated power PE of the energy storage device.
  • the micro-source device And transmitting, by the micro-source device, a first power limit instruction to limit the micro-source device to generate power by using the first predetermined real-time power generation power PW1, where the first predetermined real-time power limit power PW1 is equal to the real-time power generation power PW0 of the micro-source device minus the power load
  • the real-time power PZ of the load and the maximum charge and discharge rated power PE of the energy storage device are turned on.
  • the second power limit instruction is sent to the micro source device, such as The piconet control device sends a limited power PW-PZ command to the micro-source DC/DC.
  • performing energy balance control on the microgrid system according to the detected operating parameter includes: predicting a specified priority load in the opened load according to the detected real-time power PZ of the loaded load in the electrical load The amount of power that needs to be consumed in a predetermined period of time and the remaining power generation amount of the micro-source device in the first preset time period, and the corresponding prediction result is obtained; and the current remaining capacity of the energy-storing device and the load of the specified priority are obtained in the second pre-load Set the power consumption in the time period to obtain the corresponding acquisition result; according to the prediction result and the acquisition result, control each priority load in the opened load to balance the energy of the micro grid system.
  • the specified priorities in the opened load can be divided into different levels. For example, all the loads of the system are divided into four levels according to the priority, from high to low: 4-system level (including control system, detection and collection function operation), 3-contingency Level (lighting, ventilation, drinking water), 2-custom level (daily cooking, etc.), 1-comfort level (air conditioning, hot water), among which high priority level 4, level 3, level 2, level 1 daily
  • the power consumption is used for prediction.
  • FIG. 4 is an optional flow chart for controlling energy balance of a microgrid system according to an embodiment of the present invention.
  • the power consumption prediction of the electrical load in the system may be 0 hours at 0 o'clock.
  • the priority of the current request to enable the load is 1, and the minimum on-time running time of the device to be turned on is QFX, which needs to be satisfied: Q>QXY4+QXY3, and Q+QW-QXY4-QXY3-( QXY2-QYXHY2)>QFX; otherwise it is not allowed to be turned on; b.
  • the priority of the current request is 2, and the minimum power-on time of the device to be turned on is QFX, which needs to be satisfied: Q>QXY4+QXY3, and Q+ QW-QXY4-QXY3>QFX; otherwise, the device with priority 1 is turned off; c.
  • the priority of the current request is 3, and the minimum power-on time for the device to be turned on is QFX, which needs to be satisfied: Q> QXY4, Q+QW-QXY4>QFX, otherwise, the device with priority 2 is turned off and judged. Insufficient power is detected during operation, that is, the low priority device is turned off.
  • the method further includes: when PF>0, and PW+PF ⁇ PZ, or when PC>0, and PW ⁇ PZ When the PC is used, the abnormal alarm processing is executed.
  • the real-time power imbalance of the microgrid system can be monitored and diagnosed and judged: when PF>0, PW+PF ⁇ PZ, or when PC >0, and PW ⁇ PZ+PC, an abnormal alarm message is issued.
  • FIG. 5 is according to the present invention.
  • FIG. 5 A schematic diagram of a control device of a microgrid system according to an embodiment, as shown in FIG.
  • the device includes: a detecting unit 520, configured to detect an operating parameter of the microgrid system by using a microgrid control device, where the operating parameter includes at least: The real-time power generation power PW0 of the micro-source device, the real-time power consumption PZ of the load that has been turned on in the power load, the maximum charge and discharge power rating PE of the energy storage device, and the control unit 540, for the micro-grid system according to the detected operating parameters Perform power balance and / or energy balance control.
  • the operating parameter includes at least: The real-time power generation power PW0 of the micro-source device, the real-time power consumption PZ of the load that has been turned on in the power load, the maximum charge and discharge power rating PE of the energy storage device, and the control unit 540, for the micro-grid system according to the detected operating parameters Perform power balance and / or energy balance control.
  • the energy prediction and hierarchical management control of the equipment load is realized when the microgrid system is off-grid, and the microgrid off-grid operation is stable and reliable, thereby realizing the fineness of load energy prediction and overall demand.
  • the technical effect of the control and thus the existing technical problems of controlling the instantaneous voltage balance of the microgrid power supply system, it is difficult to finely control the load energy prediction and the overall demand.
  • the micro-source device, the energy storage device, the electrical load and the micro-network control device may be operated in a computer terminal as part of the device, and the function implemented by the module may be performed by a processor in the computer terminal.
  • the computer terminal can also be a smart phone (such as an Android phone, an iOS phone, etc.), a tablet computer, a palm computer, and a mobile Internet device (MID), a PAD, and the like.
  • a determining module configured to determine, according to the detected operating parameter, whether the real-time power generation power PW0 of the micro-source device
  • the foregoing determining module, the first control module and the second control module may be run in the computer terminal as part of the device, and the functions implemented by the module may be performed by a processor in the computer terminal, and the computer terminal is also It can be a smart phone (such as an Android phone, an iOS phone, etc.), a tablet computer, a palm computer, and a mobile Internet device (MID), a PAD, and the like.
  • a smart phone such as an Android phone, an iOS phone, etc.
  • a tablet computer such as an iOS phone, etc.
  • a palm computer such as a tablet computer, a palm computer, and a mobile Internet device (MID), a PAD, and the like.
  • MID mobile Internet device
  • the first control module includes: a first determining submodule, configured to determine whether the predetermined discharge power PF is greater than a maximum charge and discharge rated power PE of the energy storage device; and an electronic supply module configured to determine that the predetermined discharge power PF is greater than the energy storage In the case of the maximum charge and discharge rated power of the device, the power supply to the low priority load in the opened load is stopped.
  • the foregoing first determining sub-module and the electronic providing module may be operated in a computer terminal as part of the device, and the functions implemented by the above module may be performed by a processor in the computer terminal, and the computer terminal may also be intelligent.
  • Mobile devices such as Android phones, iOS phones, etc.
  • tablets such as tablets, handheld computers, and mobile Internet devices (MID), PAD and other terminal devices.
  • MID mobile Internet devices
  • the foregoing second determining sub-module and the first transmitting sub-module may be run in a computer terminal as part of the device, and the functions implemented by the foregoing module may be executed by a processor in the computer terminal, and the computer terminal may also be It is a smart phone (such as Android phone, iOS phone, etc.), tablet computer, PDA, and mobile Internet devices (MID), PAD and other terminal devices.
  • the foregoing third determining sub-module and the second sending sub-module may be run in a computer terminal as part of the device, and the functions implemented by the above-mentioned modules may be performed by a processor in the computer terminal, and the computer terminal may also It is a smart phone (such as Android phone, iOS phone, etc.), tablet computer, PDA, and mobile Internet devices (MID), PAD and other terminal devices.
  • a smart phone such as Android phone, iOS phone, etc.
  • tablet computer such as Samsung Galaxy Tabs, etc.
  • PDA personal digital assistant
  • MID mobile Internet devices
  • control unit includes: a prediction module, configured to detect the opened load according to the detected electrical load
  • the real-time power PZ is used to predict the amount of power that needs to be consumed by the specified priority load in the first preset time period and the remaining power generation amount of the micro-source device in the first preset time period to obtain a corresponding prediction result
  • the module is configured to obtain the current amount of power stored in the energy storage device and the power consumed by the specified priority load in the second preset time period, to obtain a corresponding acquisition result
  • a third control module configured to use the prediction result and the acquisition result Control the priority loads in the opened load to balance the energy of the microgrid system.
  • the foregoing prediction module, the acquisition module, and the third control module may be run in a computer terminal as part of the device, and the functions implemented by the module may be performed by a processor in the computer terminal, and the computer terminal may also be Smartphones (such as Android phones, iOS phones, etc.), tablets, PDAs, and mobile Internet devices (MID), PAD and other terminal devices.
  • Smartphones such as Android phones, iOS phones, etc.
  • MID mobile Internet devices
  • the apparatus further includes: an executing unit, configured to perform power balance control on the microgrid system according to the detected operating parameter, when PF>0, and PW+PF ⁇ PZ, or when PC>0
  • an executing unit configured to perform power balance control on the microgrid system according to the detected operating parameter, when PF>0, and PW+PF ⁇ PZ, or when PC>0
  • the PW ⁇ PZ+PC is executed, the abnormal alarm processing is executed.
  • the foregoing execution unit may be run in a computer terminal as part of the device, and the functions implemented by the above module may be performed by a processor in the computer terminal, and the computer terminal may also be a smart phone (eg, Android mobile phone, iOS). Mobile phones, etc., tablet computers, PDAs, and mobile Internet devices (MID), PAD and other terminal devices.
  • a smart phone eg, Android mobile phone, iOS
  • MID mobile Internet devices
  • the various functional units provided by the embodiments of the present application may be operated in a mobile terminal, a computer terminal, or the like, or may be stored as part of a storage medium.
  • embodiments of the present invention may provide a computer terminal, which may be any computer terminal device in a group of computer terminals.
  • a computer terminal may also be replaced with a terminal device such as a mobile terminal.
  • the computer terminal may be located in at least one network device of the plurality of network devices of the computer network.
  • the computer terminal may execute the program code of the following steps in the control method of the micro-grid system: detecting the operating parameters of the micro-grid system through the micro-network control device, where the operating parameters include at least: real-time power generation of the micro-source device The power PW0, the real-time power PZ of the load that has been turned on in the power load, the maximum charge and discharge rated power PE of the energy storage device, and the power balance and/or energy balance control of the micro grid system according to the detected operating parameters.
  • the computer terminal can include: one or more processors, memory, and transmission devices.
  • the memory can be used to store software programs and modules, such as the control method of the microgrid system and the program instructions/modules corresponding to the device in the embodiment of the present invention, and the processor executes the software programs and modules stored in the memory, thereby executing each A functional application and data processing, that is, a control method of the above microgrid system is implemented.
  • the memory may include a high speed random access memory, and may also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory.
  • the memory can further include memory remotely located relative to the processor, which can be connected to the terminal over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • the above transmission device is for receiving or transmitting data via a network.
  • Specific examples of the above network may include a wired network and a wireless network.
  • the transmission device includes a Network Interface Controller (NIC) that can be connected to other network devices and routers via a network cable to communicate with the Internet or a local area network.
  • the transmission device is a Radio Frequency (RF) module for communicating with the Internet wirelessly.
  • NIC Network Interface Controller
  • RF Radio Frequency
  • the memory is used to store preset action conditions and information of the preset rights user, and an application.
  • the processor can call the memory stored information and the application by the transmitting device to execute the program code of the method steps of each of the alternative or preferred embodiments of the above method embodiments.
  • the computer terminal can also be a smart phone (such as an Android phone, an iOS phone, etc.), a tablet computer, a palm computer, and a mobile Internet device (MID), a PAD, and the like.
  • a smart phone such as an Android phone, an iOS phone, etc.
  • a tablet computer such as a Samsung Galaxy Tab, etc.
  • a palm computer such as a Samsung Galaxy Tab, etc.
  • MID mobile Internet device
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be used to save program code executed by the control method of the micro grid system provided by the foregoing method embodiment and the device embodiment.
  • the foregoing storage medium may be located in any one of the computer terminal groups in the computer network, or in any one of the mobile terminal groups.
  • the storage medium is arranged to store program code for performing the following steps:
  • the operating parameters of the microgrid system are detected by the microgrid control device, wherein the operating parameters include at least: real-time power generation PW0 of the micro-source device, real-time power PZ of the load that has been turned on in the power load, and maximum charge and discharge rating of the energy storage device.
  • Power PE power balance and/or energy balance control of the microgrid system based on the detected operating parameters.
  • the storage medium may also be provided as program code of various preferred or optional method steps provided by the control method of the microgrid system.
  • a storage medium including a stored program, wherein the program executes a control method of the micro grid system.
  • a processor for running a program wherein a program of controlling a microgrid system is executed while the program is running.
  • a terminal including: a detecting unit, configured to detect an operating parameter of a microgrid system by using a microgrid control device, where the operating parameter includes at least: real-time power generation of the micro-source device Power PW0, real-time power PZ of the load that has been turned on in the electrical load, maximum charge and discharge rated power PE of the energy storage device; control unit for power balancing and/or energy of the microgrid system based on the detected operating parameters Balance control; a processor, a processor running program, wherein the program runs a control method of the micro grid system for data output from the detecting unit and the control unit.
  • the operating parameter includes at least: real-time power generation of the micro-source device Power PW0, real-time power PZ of the load that has been turned on in the electrical load, maximum charge and discharge rated power PE of the energy storage device
  • control unit for power balancing and/or energy of the microgrid system based on the detected operating parameters Balance control
  • a processor a processor running program, wherein the
  • a terminal including: a detecting unit, configured to detect an operating parameter of a microgrid system by using a microgrid control device, where the operating parameter includes at least: real-time power generation of the micro-source device Power PW0, real-time power PZ of the load that has been turned on in the electrical load, maximum charge and discharge rated power PE of the energy storage device; control unit for power balancing and/or energy of the microgrid system based on the detected operating parameters Balance control; a storage medium for storing a program, wherein the program performs a control method of the micro grid system for data output from the detecting unit and the control unit at runtime.
  • the operating parameter includes at least: real-time power generation of the micro-source device Power PW0, real-time power PZ of the load that has been turned on in the electrical load, maximum charge and discharge rated power PE of the energy storage device
  • control unit for power balancing and/or energy of the microgrid system based on the detected operating parameters Balance control
  • a storage medium for storing
  • the disclosed technical content may be through other The way to achieve.
  • the device embodiments described above are only schematic.
  • the division of the unit may be a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, unit or module, and may be electrical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention 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.
  • the integrated unit can be implemented either in hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

La présente invention concerne un procédé et un appareil de commande pour un système de micro-réseau. Le système de micro-réseau comprend : un dispositif de micro-source (120), un dispositif de stockage d'énergie (140), une charge électrique (160) et un dispositif de commande de micro-réseau (180). Le procédé consiste : à détecter des paramètres de fonctionnement d'un système de micro-réseau au moyen d'un dispositif de commande de micro-réseau (S102), les paramètres de fonctionnement comprenant au moins : une puissance générée en temps réel (PW0) d'un dispositif de micro-source, une puissance électrique en temps réel (PZ) d'une charge activée dans une charge électrique, et la charge maximale et la puissance nominale de décharge (PE) d'un dispositif de stockage d'énergie ; et à réaliser une commande d'équilibre de puissance et/ou d'équilibre d'énergie du système de micro-réseau selon les paramètres de fonctionnement détectés (S104). Le procédé et l'appareil de commande résolvent le problème technique selon lequel il est difficile d'effectuer une commande précise de la prédiction d'énergie de charge et des exigences globales au moyen d'un procédé existant permettant de commander un équilibre de tension instantanée d'un système d'alimentation électrique de micro-réseau.
PCT/CN2017/081511 2017-01-17 2017-04-21 Procédé et appareil de commande pour système de micro-réseau Ceased WO2018133230A1 (fr)

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