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WO2022217721A1 - Batterie intelligente - Google Patents

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Publication number
WO2022217721A1
WO2022217721A1 PCT/CN2021/097867 CN2021097867W WO2022217721A1 WO 2022217721 A1 WO2022217721 A1 WO 2022217721A1 CN 2021097867 W CN2021097867 W CN 2021097867W WO 2022217721 A1 WO2022217721 A1 WO 2022217721A1
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WO
WIPO (PCT)
Prior art keywords
circuit module
output
module
buck
energy storage
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/CN2021/097867
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English (en)
Chinese (zh)
Inventor
王国平
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.)
ZHUHAI LONL ELECTRIC CO Ltd
Original Assignee
ZHUHAI LONL ELECTRIC CO Ltd
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Publication date
Application filed by ZHUHAI LONL ELECTRIC CO Ltd filed Critical ZHUHAI LONL ELECTRIC CO Ltd
Publication of WO2022217721A1 publication Critical patent/WO2022217721A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/46—Accumulators structurally combined with charging apparatus
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302—Overcharge protection
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00306—Overdischarge protection
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the invention relates to the field of energy storage systems, in particular to a smart battery.
  • the present invention aims to solve at least one of the technical problems existing in the prior art.
  • the present invention proposes a smart battery that can use AC or DC as a charging power source, and can provide AC and DC outputs of various voltage levels to meet different voltage load requirements.
  • the smart battery according to the embodiment of the present invention includes an energy storage unit, a charging unit, an output unit and a management unit; the output end of the charging unit is connected to the input end of the energy storage unit, and the input end of the charging unit is connected to an AC or DC input, the charging unit is provided with a first control board module and a first buck-boost circuit module, the output end of the first control board module is connected to the control end of the first buck-boost circuit module, so
  • the first control board module provides trigger pulses for the first buck-boost circuit module; the input end of the output unit is connected to the output end of the energy storage unit, and the output end of the output unit is used to output AC or DC output, the output unit is provided with a second control board module and a second buck-boost circuit module, the output end of the second control board module is connected to the control end of the second buck-boost circuit module, the The second control board module provides trigger pulses for the second buck-boost circuit module; the
  • the smart battery according to the embodiment of the present invention has at least the following beneficial effects: the management unit can control the charging unit and the output unit, avoid overcharging and overdischarging of the energy storage unit, and prolong the life of the energy storage device in the energy storage unit. duration of use.
  • the charging unit can use AC or DC as the charging power source, and the output unit can provide AC and DC outputs of various voltage levels to meet the requirements of different voltage loads, expand the scope of application of the smart battery, and be flexible and convenient to use.
  • the first buck-boost circuit module and the second buck-boost circuit module each include a plurality of buck-boost conversion circuits, and the plurality of buck-boost conversion circuits are respectively arranged in parallel.
  • the buck-boost conversion circuit includes a first field effect transistor, a second field effect transistor, a filter capacitor and a transformer, and the first field effect transistor and the second field effect transistor are respectively connected The first end and the second end of the transformer, and the filter capacitor is connected to the third end of the transformer.
  • both the first control board module and the second control board module include a PWM control chip.
  • the charging unit further includes a rectifier circuit module, a first high-frequency rectifier circuit module, and a feedback circuit module, and the output end of the rectifier circuit module is connected to the input terminal of the first buck-boost circuit module.
  • the output end of the first buck-boost circuit module is connected to the input end of the first high-frequency rectifier circuit module, and the output end of the first high-frequency rectifier circuit module is connected to the input end of the energy storage unit.
  • the feedback circuit module is connected to the first high-frequency rectifier circuit module, and transmits the received information to the first control board module.
  • the first high-frequency rectifier circuit module is replaced by a pulsed charge and discharge circuit module, and the input end of the pulsed charge and discharge circuit module and the output end of the first buck-boost circuit module
  • the output end of the pulsed charge and discharge circuit module is connected to the input end of the energy storage unit, and the feedback end of the pulsed charge and discharge circuit module is connected to the input end of the feedback circuit module.
  • the output unit further includes a short circuit protection circuit module and an output and feedback module, the input end of the short circuit protection circuit module is connected to the energy storage unit, and the output end of the short circuit protection circuit module is connected to the input end of the second buck-boost circuit module, the output end of the second buck-boost circuit module is connected to the input end of the output and feedback module, and the first output end of the output and feedback module For outputting alternating current or direct current, the second output end of the output and feedback module is connected to the input end of the second control board module.
  • the output and feedback module includes a second high-frequency rectifier circuit module and a DC output feedback circuit module, and the input end of the second high-frequency rectifier circuit module is connected to the second buck-boost circuit.
  • the output end of the module is connected, the output end of the second high frequency rectifier circuit module is used for outputting direct current, the input end of the DC output feedback circuit module is connected with the feedback end of the second high frequency rectifier circuit module, the The output end of the DC output feedback circuit module is connected to the input end of the second control board module.
  • the output and feedback module includes an isolation circuit module and an AC output feedback circuit module, the input terminal of the isolation circuit module is connected to the output terminal of the second buck-boost circuit module, the The output terminal of the isolation circuit module is used to output alternating current, the input terminal of the AC output feedback circuit module is connected to the feedback terminal of the isolation circuit module, and the output terminal of the AC output feedback circuit module is connected to the second control board module input connection.
  • the isolation circuit module includes a single-phase or three-phase alternating current isolation circuit.
  • FIG. 1 is a schematic diagram of a smart battery according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a charging unit according to an embodiment of the present invention.
  • output DC output unit
  • output AC output unit
  • FIG. 5 is a schematic diagram of a charging unit (with a maintenance function) according to an embodiment of the present invention.
  • FIG. 6 is a circuit diagram of a buck-boost conversion circuit according to an embodiment of the present invention.
  • Management unit 110 communication interface 111; charging unit 120, rectifier circuit module 121, first buck-boost circuit module 122, first high-frequency rectifier circuit module 123, feedback circuit module 124, pulsed charge and discharge circuit module 125, first control board module 126; energy storage unit 130; output unit 140, short-circuit protection circuit module 141, second buck-boost circuit module 142, second high-frequency rectifier circuit module 143, DC output feedback circuit module 144, isolation circuit module 145, AC output feedback circuit module 146 , second control board module 147 ; buck-boost conversion circuit 151 .
  • the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number . If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.
  • a smart battery in some embodiments of the present invention, includes a charging unit 120 , an energy storage unit 130 , an output unit 140 and a management unit 110 .
  • the input end of the charging unit 120 is connected to the charging power source, and the output end of the charging unit 120 is connected to the input end of the energy storage unit 130 .
  • the charging unit 120 receives alternating current or direct current transmitted by an external charging power source, and converts the received current into a current that the energy storage unit 130 can receive and store.
  • the charging unit 120 uses an AC/DC or DC/DC circuit to convert different voltages
  • the level of AC and DC input becomes the DC power of the voltage that the energy storage unit 130 can accept, so as to realize the charging of the energy storage unit 130 .
  • the input end of the output unit 140 is connected to the output end of the energy storage unit 130, and the output end of the output unit 140 outputs alternating current or direct current.
  • the output unit 140 can be It is direct current or alternating current.
  • the DC power of the energy storage unit 130 can be converted into AC and DC of different voltage levels through the output unit 140 to meet the output requirements of different voltage levels.
  • the charging unit 120 can charge the energy storage unit 130 in various working modes such as constant current, constant voltage, and pulse, and the output unit 140 can perform various operations such as constant current, constant voltage, and pulse on the energy storage unit 130. way to discharge.
  • the energy storage unit 130 is an electrochemical energy storage device, such as a lead-acid battery, a cadmium-nickel alkaline battery, a lithium battery, a super capacitor, and the like.
  • the management unit 110 is respectively connected with the control terminal of the charging unit 120, the feedback terminal of the energy storage unit 130 and the control terminal of the output unit 140, and the management unit 110 is used to collect the operating parameters of the energy storage unit 130, such as voltage, electromotive force, charging and discharging current , temperature, internal resistance, etc., and can calculate and obtain the health status and state of charge of the energy storage unit 130 according to the operating parameters of the energy storage unit 130 .
  • the management unit 110 can charge and discharge the energy storage unit 130 by controlling the charging unit 120 and the output unit 140, and can also collect input and output parameters of the charging unit 120 and the output unit 140, such as voltage and current.
  • the management unit 110 is provided with a display module for displaying parameters such as voltage, electromotive force, current, temperature, internal resistance, degree of health, remaining capacity and the like of the energy storage unit 130 .
  • the display module can be an LCD screen or a digital tube. The user can intuitively know the parameters of the energy storage unit 130 through the display module, and the management unit 110 can calculate the health status and the state of charge of the energy storage unit 130 through the above parameters, so that the user can intuitively know that without the need for The health status of the battery is judged by the traditional battery capacity check discharge method.
  • the charging unit 120 can use alternating current or direct current as the charging power source, and the output unit 140 can provide alternating current and direct current output of various voltage levels to meet different voltage load requirements, expand the applicable scope of the smart battery, and be flexible and convenient to use.
  • the charging unit 120 includes a rectifier circuit module 121 , a first buck-boost circuit module 122 , a first high-frequency rectifier circuit module 123 , a feedback circuit module 124 and a first control board module 126 .
  • the input end of the rectifier circuit module 121 is connected to the output end of the AC or DC power supply, the output end of the rectifier circuit module 121 is connected to the input end of the first buck-boost circuit module 122, and the first buck-boost circuit module 122
  • the output terminal is connected to the input terminal of the first high-frequency rectifier circuit module 123, the output terminal of the first high-frequency rectifier circuit module 123 is connected to the input terminal of the energy storage unit 130, and the input terminal of the feedback circuit module 124 is connected to the first high-frequency rectifier circuit module 123.
  • the feedback terminal of the circuit module 123 is connected, the output terminal of the feedback circuit module 124 is connected to the first control board module 126 , and the output terminal of the first control board module 126 is connected to the control terminal of the first step-up/down circuit module 122 .
  • the control terminal of the control board module 126 is connected to the management unit 110 as the control terminal of the charging unit 120, and the feedback circuit module 124 is used to feed back parameters such as current and voltage output by the charging unit 120 to the first control board module 126, and then the first control board module 126 is used for feedback.
  • the control board module 126 is transmitted to the management unit 110 .
  • the AC or DC power enters the charging unit 120 through the rectifier circuit module 121.
  • the rectifier circuit module 121 adopts a full-bridge rectifier circuit or a half-bridge rectifier circuit.
  • the AC or DC power is converted into the DC input that the energy storage unit 130 can accept through the rectifier circuit module 121, and then the first step-up and step-down circuit module 122 is used for step-up and step-down processing, so that the voltage of the DC input can also conform to the voltage of the energy storage unit 130.
  • the first buck-boost circuit module 122 includes a high-frequency switch tube and a high-frequency transformer.
  • the high-frequency switch tube adopts a MOS tube or an IGBT tube, and the high-frequency transformer is used to boost or step down the output of the rectifier circuit module 121 .
  • the trigger pulse can be controlled by the first control board module 126. It should be noted that the trigger pulse is used to control the on and off of the high-frequency switch tube to form a high-frequency alternating current. Finally, it is converted into direct current that meets the requirements of the energy storage unit 130 through the first high-frequency rectifier circuit. Parameters such as the voltage and current of the DC output of the charging unit 120 are fed back to the first control board module 126 through the feedback circuit module 124 .
  • the feedback circuit module 124 can be understood as a voltage and current collection module, for example, a voltage collection circuit and a current collection circuit are used to transmit the collected voltage and current information to the first control board module 126 .
  • the charging current limiting value and the charging voltage limiting value of the charging unit 120 can be set, wherein the setting of the charging current limiting value and the charging voltage limiting value is to enable the energy storage unit 130 to be in an optimal state run under.
  • the energy storage unit 130 includes a 12V/100AH lead-acid battery
  • the charging voltage limit value of the charging unit 120 is 14.2V
  • the charging current limiting value is 10A, that is, the charging voltage will be less than or equal to 14.2V, and the current will be less than or equal to 10A.
  • the energy storage unit 130 When the voltage value of the energy storage unit 130 is lower than the charging voltage limit value, the energy storage unit 130 is in a constant current or constant voltage charging state until the energy storage unit 130 is fully charged, which can effectively reduce the phenomenon of undercharging.
  • the management unit 110 controls the charging unit 120 to stop working to avoid overcharging and damage to the energy storage unit 130 .
  • the input end of the charging unit 120 can receive alternating current or direct current input with different voltage levels, and the alternating current or direct current input is converted into an energy storage unit through the rectifier circuit module 121 , the first step-up and step-down circuit module 122 and the first high frequency rectifier circuit module 123 .
  • the direct current that can be stored by 130 is stored in the energy storage unit 130 .
  • the energy storage unit 130 and the input voltage can be monitored, which can effectively avoid overcharging or undercharging.
  • the output unit 140 may be used to output direct current.
  • the output unit 140 includes a short circuit protection circuit module 141, a second buck-boost circuit module 142, an output and feedback module, and a second control board module 147, wherein the output and feedback module includes a second high-frequency rectifier circuit module 143 and a DC output Feedback circuit module 144 .
  • the input end of the short-circuit protection circuit module 141 is connected to the output end of the energy storage unit 130 , the output end of the short-circuit protection circuit module 141 is connected to the input end of the second buck-boost circuit module 142 , and the output of the second buck-boost circuit module 142
  • the terminal is connected to the input terminal of the second high frequency rectification circuit module 143, the output terminal of the second high frequency rectification circuit module 143 outputs DC power, and the DC output terminal of the feedback circuit module 144 is connected to the feedback of the second high frequency rectification circuit module 143.
  • the output terminal of the DC output feedback circuit module 144 is connected to the input terminal of the second control board module 147, and the output terminal of the second control board module 147 is connected to the control terminal of the second step-up/down circuit module 142.
  • the control terminal of the control board module 147 is connected to the management unit 110 as the control terminal of the output unit 140 .
  • the DC power flowing out from the energy storage unit 130 passes through the short circuit protection circuit module 141, and then passes through the second buck-boost circuit module 142 for buck-boost, the second control board module 147 controls the giving of the trigger pulse, and finally passes through the second high-frequency rectifier
  • the circuit module 143 outputs DC power that meets the load requirements, and the DC output feedback circuit module 144 collects voltage and current parameters of the output DC power, and feeds them back to the second control board module 147 .
  • the short circuit protection circuit module 141 can be protected by a fuse or a circuit breaker.
  • the fuse or circuit breaker can be triggered to stop the output unit 140 from working, thereby avoiding damage to the energy storage unit 130 Damaged;
  • the second buck-boost circuit module 142 includes a high-frequency switch tube and a high-frequency transformer, the high-frequency switch tube adopts a MOS tube or an IGBT tube, and the high-frequency transformer is used to boost or step down the output of the rectifier circuit module 121. .
  • the DC output feedback circuit module 144 includes a DC current sampling circuit and a DC voltage sampling circuit for detecting and transmitting the current and voltage of the DC power output by the second high frequency rectifier circuit module 143 to the second control board module 147 .
  • the management unit 110 can set parameters such as the output current limiting protection value and the low voltage protection value of the output unit 140 .
  • the low voltage protection value during discharge is 10.8V.
  • the management unit 110 controls the output unit 140 to work, the energy storage unit 130 is in a discharging state, and stops until the output voltage of the energy storage unit 130 drops to the low voltage protection value, that is, the voltage value of the energy storage unit 130 collected by the management unit 110 is less than or If it is equal to 10.8V, the output unit 140 is controlled to stop working to avoid damage to the energy storage unit 130 due to over-discharge.
  • the output unit 140 can convert the direct current output by the energy storage unit 130 into direct current or alternating current output with different voltage levels, so as to meet the needs of users, and make the application of the smart battery more extensive.
  • the output unit 140 for outputting DC power converts the DC power output by the energy storage unit 130 into DC power that meets user requirements through the short-circuit protection circuit, the second buck-boost circuit module 142 and the second high-frequency rectifier circuit module 143 .
  • the energy storage unit 130 and the output voltage can be monitored, which can effectively avoid damage to the energy storage unit 130 due to over-discharge.
  • the output and feedback circuit module 124 includes an isolation circuit module 145 and an AC output feedback circuit module 146 .
  • the input end of the short-circuit protection circuit module 141 is connected to the output end of the energy storage unit 130 , the output end of the short-circuit protection circuit module 141 is connected to the input end of the second buck-boost circuit module 142 , and the output of the second buck-boost circuit module 142
  • the terminal is connected to the input terminal of the isolation circuit module 145, the output terminal of the isolation circuit module 145 outputs AC power, the input terminal of the AC output feedback circuit module 146 is connected to the feedback terminal of the isolation circuit module 145, and the AC output terminal of the feedback circuit module 146 is connected to the feedback terminal of the isolation circuit module 145.
  • the output terminal is connected to the input terminal of the second control board module 147 , the output terminal of the second control board module 147 is connected to the control terminal of the second step-up/down circuit module 142 , and the control terminal of the second control board module 147 serves as the output unit 140
  • the control terminal is connected to the management unit 110.
  • the DC power flowing from the energy storage unit 130 passes through the short-circuit protection circuit module 141, and then passes through the second buck-boost circuit module 142 for buck-boost.
  • the output of the module 142 forms a sine wave
  • the second high-frequency rectifier circuit module 143 outputs the alternating current that meets the load requirements
  • the alternating current output feedback circuit module 146 collects the voltage and current parameters of the output alternating current and feeds them back to the second control board Module 147.
  • the short circuit protection circuit module 141 can be protected by a fuse or a circuit breaker.
  • the fuse or circuit breaker can be triggered to stop the output unit 140 from working, thereby avoiding damage to the energy storage unit 130 Damaged;
  • the high-frequency switch tube in the second buck-boost circuit module 142 uses a MOS tube or an IGBT tube, and a high-frequency transformer is used to boost or step down the output of the short-circuit protection circuit module 141 .
  • the AC output feedback circuit module 146 includes an AC current sampling circuit and an AC voltage sampling circuit for detecting and transmitting the current and voltage of the AC power output by the isolation circuit module 145 to the second control board module 147 .
  • the management unit 110 can set parameters such as the output current limiting protection value and the low voltage protection value of the output unit 140 .
  • the low voltage protection value during discharge is 10.8V.
  • the management unit 110 controls the output unit 140 to work, the energy storage unit 130 is in a discharging state, and stops until the output voltage of the energy storage unit 130 drops to the low voltage protection value, that is, the voltage value of the energy storage unit 130 collected by the management unit 110 is less than or If it is equal to 10.8V, the output unit 140 is controlled to stop working to avoid damage to the energy storage unit 130 due to over-discharge.
  • the isolation circuit module 145 includes a single-phase AC isolation circuit or a three-phase AC isolation circuit, and the isolation circuit module 145 is used to protect the smart battery from working, so that the smart battery can work safely and reliably.
  • the output unit 140 can convert the direct current output by the energy storage unit 130 into direct current or alternating current output with different voltage levels, so as to meet the needs of users, and make the application of the smart battery more extensive.
  • the output unit 140 for outputting AC power converts the DC power output by the energy storage unit 130 into AC power that meets user requirements through the short-circuit protection circuit, the second buck-boost circuit module 142 and the isolation circuit module 145 .
  • the energy storage unit 130 and the output voltage can be monitored, which can effectively prevent the energy storage unit 130 from being damaged due to over-discharge, and can also monitor the energy storage unit 130. energy is used efficiently.
  • the charging unit 120 also includes a pulsed charging and discharging circuit module 125 .
  • the output end of the rectifier circuit module 121 is connected to the input end of the first buck-boost circuit module 122 , and the output end of the first buck-boost circuit module 122 is connected to the input end of the pulsed charge and discharge circuit module 125 , and the pulsed charge and discharge
  • the output end of the circuit module 125 is connected to the input end of the energy storage unit 130
  • the feedback end of the pulsed charge and discharge circuit module 125 is connected to the input end of the feedback circuit module 124
  • the output end of the feedback circuit module 124 is connected to the first control board module 126
  • the input end of the first control board module 126 is connected to the control end of the first buck-boost circuit module 122 , and the control end of the first control board module 126 is connected to the management unit 110 .
  • the AC or DC power is converted into a DC input that can be accepted by the energy storage unit 130 through the rectifier circuit module 121 , and then goes through the first step-up and step-down circuit module 122 for step-up and step-down processing, and finally the energy storage unit 130 is processed by the pulsed charge-discharge circuit module.
  • Activation treatment is performed. It can be understood that when the health status of the energy storage unit 130 is in a sub-health state, the smart battery is actively maintained, and the battery in the energy storage unit 130 is activated through the pulsed charge and discharge circuit module 125 to restore the energy storage unit 130. healthy.
  • the pulsed charging and discharging activation parameters of the charging unit 120 may be configured by the management unit 110 .
  • the pulsed charge-discharge circuit module 125 provides a self-maintenance function for the smart battery, that is, when the health status of the energy storage unit 130 is in a sub-health state, the self-maintenance function is activated.
  • the AC input or DC input enters the energy storage unit 130 through the rectifier circuit module 121 , the first buck-boost circuit module 122 and the pulsed charge and discharge circuit module 125 .
  • the energy storage unit can be 130 is activated, even if the energy storage unit 130 returns to health.
  • the management unit 110 and the first control board module 126 monitor the health status of the energy storage unit 130, and stop the pulsed charging and discharging circuit module 125 when the energy storage unit 130 recovers health, which can effectively realize energy storage.
  • the multiple utilization of the battery in the unit 130 reduces the waste of the battery.
  • the pulsed charging and discharging circuit module 125 includes a pulsed charging circuit and a pulsed discharging circuit, and is used for activating the energy storage unit, and activation can be understood as a deep charging and discharging process for the energy storage unit.
  • the pulse charging circuit charges the energy storage unit 130 , and the pulse discharging circuit discharges the energy storage unit 130 .
  • the pulsed charging circuit uses the NE555 chip as the pulse generator, and the pulsed discharge circuit can use the RC discharge circuit to connect with the pulse-controlled switch to realize the discharge, so that the energy storage unit 130 is cyclically charged and discharged to achieve an activated Effect.
  • the first buck-boost circuit module 122 and the second buck-boost circuit module 142 each include a plurality of buck-boost conversion circuits 151 , wherein the plurality of buck-boost conversion circuits 151 It is set in parallel. It can be understood that the PWM control signal is given by the first control board module 126, and the PWM control signal is used as a trigger pulse to control the buck-boost conversion circuit 151 to perform buck-boost processing, and finally undergo filtering.
  • the buck-boost conversion circuit 151 includes a first FET, a second FET, a filter capacitor and a transformer, and the trigger pulse enters the buck-boost conversion circuit from the gates of the first FET and the second FET 151.
  • the trigger pulse output by the first control board module 126 enters the gates of the first field effect transistor and the second field effect transistor of the buck-boost conversion circuit 151 in the first buck-boost circuit module 122; the second control board
  • the trigger pulse output by the module 147 enters the gates of the first FET and the second FET of the buck-boost conversion circuit 151 in the second buck-boost circuit module 142 .
  • the sources of the first field effect transistor and the second field effect transistor are grounded, and the drain electrodes of the first field effect transistor and the second field effect transistor are connected to the transformer.
  • the transformer adopts three windings, the first end of the first winding is connected to the drain of the first field effect transistor, the second end of the first winding is connected to the anode end of the filter capacitor, and the first end of the second winding is connected. It is connected to the drain of the second field effect transistor, the second end of the second winding is connected to the anode end of the filter capacitor, and the third windings of the transformers of the plurality of buck-boost conversion circuits 151 are connected in series.
  • three buck-boost conversion circuits 151 are used, such as the first buck-boost conversion circuit, the second buck-boost conversion circuit and the third buck-boost conversion circuit, the third windings of the transformers are connected in series in sequence, and the first buck-boost conversion circuit is connected in series.
  • the third winding of the transformer of the conversion circuit is connected to a plurality of parallel capacitors and then connected to the first input end of the bridge rectifier circuit. Two input terminals are connected. The anode end of the filter capacitor is connected to the output end of other modules.
  • the anode end of the filter capacitor in the buck-boost conversion circuit 151 is connected to the output end of the rectifier circuit module 121;
  • the anode end of the filter capacitor in the buck-boost conversion circuit 151 is connected to the output end of the short-circuit protection circuit 141 module.
  • a plurality of buck-boost conversion circuits 151 are controlled by PWM signals to precisely control the output current and voltage.
  • the buck-boost conversion circuits 151 are connected in parallel, which reduces the loss of the circuit when working with large currents and improves the reliability of the circuit.
  • both the first control board module 126 and the second control board module 147 include a PWM control chip, and the output end of the PWM control chip on the first control board module 126 is connected to the first buck-boost circuit module 122
  • the PWM control chip on the second control board module 147 is connected to the second buck-boost circuit module 142. It can be understood that the PWM control chip provides trigger pulses and controls the first buck-boost circuit module 122 and the second buck-boost circuit module 122. voltage circuit module 142. PWM control chip can use UC2525 chip.
  • the first control board module 126 and the second control board module 147 are also provided with auxiliary control circuits.
  • the auxiliary control circuits can use single-chip microcomputers to form intelligent management control, so that the work control process of the circuits is more secure and reliable.
  • the first control board module 126 and the second control board module 147 can enable multiple buck-boost conversion circuits 151 to work at the same frequency, in the same phase, and with the same pulse width, so that the output current and voltage of the buck-boost conversion circuits 151 are the same, and the system is improved. Stability and reliability of work.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

Batterie intelligente, se rapportant au domaine technique du stockage d'énergie. La batterie intelligente comprend une unité de stockage d'énergie (130), une unité de charge (120), une unité de sortie (140) et une unité de gestion (110) ; une extrémité de sortie de l'unité de charge (120) est connectée à une extrémité d'entrée de l'unité de stockage d'énergie (130), et une extrémité d'entrée de l'unité de charge (120) est connectée à une entrée de courant alternatif ou de courant continu ; une extrémité d'entrée de l'unité de sortie (140) est connectée à une extrémité de sortie de l'unité de stockage d'énergie (130), et une extrémité de sortie de l'unité de sortie (140) délivre un courant alternatif ou un courant continu ; l'unité de gestion (110) est connectée séparément à l'unité de stockage d'énergie (130), à l'unité de charge (120) et à l'unité de sortie (140). La batterie intelligente peut utiliser un courant alternatif ou un courant continu en tant que source de puissance de charge, et peut fournir des sorties de courant alternatif et de courant continu de différents niveaux de tension, ce qui permet de répondre aux exigences de charges électriques sous différentes tensions.
PCT/CN2021/097867 2021-04-13 2021-06-02 Batterie intelligente Ceased WO2022217721A1 (fr)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112803085B (zh) * 2021-04-13 2021-08-10 珠海朗尔电气有限公司 智慧电池
CN114400751A (zh) * 2021-12-15 2022-04-26 珠海朗尔电气有限公司 电池群并联系统、控制方法及存储介质

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203377670U (zh) * 2013-07-25 2014-01-01 湖北省电力勘测设计院 分散式智能直流电源
CN104249629A (zh) * 2013-06-28 2014-12-31 比亚迪股份有限公司 电动汽车、电动汽车的动力系统和动力电池的充电方法
CN104319826A (zh) * 2014-09-28 2015-01-28 株洲南车时代电气股份有限公司 一种蓄电池的充电机
CN105262158A (zh) * 2015-09-25 2016-01-20 江苏峰谷源储能技术研究院有限公司 一种家用储能控制电路
CN205248854U (zh) * 2015-12-15 2016-05-18 深圳市迪比科电子科技有限公司 一种多功能充电座装置
CN106026327A (zh) * 2016-02-05 2016-10-12 广东欧珀移动通信有限公司 充电装置、充电方法、电源适配器和终端
CN207098712U (zh) * 2017-08-29 2018-03-13 广州智广电子科技有限公司 一种单mcu实现同步整流升压的移动电源
US20200395764A1 (en) * 2019-06-11 2020-12-17 Raytheon Company Power transfer system with multiple energy storage modules
CN112803085A (zh) * 2021-04-13 2021-05-14 珠海朗尔电气有限公司 智慧电池

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922178A (en) * 1987-08-31 1990-05-01 Motorola, Inc. Dual source rechargeable battery
JP4244531B2 (ja) * 2001-05-11 2009-03-25 株式会社デンソー 複数電圧出力型車両用電源装置の制御方法
CN1471192A (zh) * 2003-06-26 2004-01-28 内置充电器式锂离子电池包
CN2796214Y (zh) * 2005-02-02 2006-07-12 胡士谦 一种多用电源
CN101562266B (zh) * 2009-05-22 2011-11-30 李松 锂离子动力电池组的充电方法及使用该方法的锂离子动力电池组系统
CN201717656U (zh) * 2010-07-09 2011-01-19 上海沃施园艺股份有限公司 智能电池包
JP5668424B2 (ja) * 2010-11-16 2015-02-12 ソニー株式会社 バッテリ装置、バッテリ管理システム、およびバッテリ管理方法
CN204118835U (zh) * 2014-08-01 2015-01-21 珠海朗尔电气有限公司 基于可调节输出电压的开关电源蓄电池模拟器
CN205104583U (zh) * 2015-10-12 2016-03-23 江苏华富储能新技术股份有限公司 一种非有线模式充放电的新型铅蓄电池
TWI707521B (zh) * 2019-07-01 2020-10-11 飛宏科技股份有限公司 智慧型交流/直流最大功率電池充電管理方法
KR20210000492U (ko) * 2019-08-21 2021-03-04 주식회사 테스이노베이션 큐브 멀티 펑션 보조배터리
CN212587564U (zh) * 2020-08-19 2021-02-23 深圳市誉娇诚科技有限公司 多功能储能电池装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104249629A (zh) * 2013-06-28 2014-12-31 比亚迪股份有限公司 电动汽车、电动汽车的动力系统和动力电池的充电方法
CN203377670U (zh) * 2013-07-25 2014-01-01 湖北省电力勘测设计院 分散式智能直流电源
CN104319826A (zh) * 2014-09-28 2015-01-28 株洲南车时代电气股份有限公司 一种蓄电池的充电机
CN105262158A (zh) * 2015-09-25 2016-01-20 江苏峰谷源储能技术研究院有限公司 一种家用储能控制电路
CN205248854U (zh) * 2015-12-15 2016-05-18 深圳市迪比科电子科技有限公司 一种多功能充电座装置
CN106026327A (zh) * 2016-02-05 2016-10-12 广东欧珀移动通信有限公司 充电装置、充电方法、电源适配器和终端
CN207098712U (zh) * 2017-08-29 2018-03-13 广州智广电子科技有限公司 一种单mcu实现同步整流升压的移动电源
US20200395764A1 (en) * 2019-06-11 2020-12-17 Raytheon Company Power transfer system with multiple energy storage modules
CN112803085A (zh) * 2021-04-13 2021-05-14 珠海朗尔电气有限公司 智慧电池

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