CN109525002A - A kind of full monomer actively monitoring equilibrium managing and control system of battery group string and control method - Google Patents

A kind of full monomer actively monitoring equilibrium managing and control system of battery group string and control method Download PDF

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Publication number
CN109525002A
CN109525002A CN201710839387.3A CN201710839387A CN109525002A CN 109525002 A CN109525002 A CN 109525002A CN 201710839387 A CN201710839387 A CN 201710839387A CN 109525002 A CN109525002 A CN 109525002A
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bus
cell batteries
control switch
positive
cathode
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周锡卫
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Individual
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014Circuits for equalisation of charge between batteries
    • H02J7/0018Circuits for equalisation of charge between batteries using separate charge circuits
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/46Accumulators structurally combined with charging apparatus
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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

Abstract

The invention belongs to batteries to store energy technical fields, and in particular to a kind of full monomer actively monitoring equilibrium managing and control system of battery group string and control method.It realizes and the single battery that electricity is higher than average electricity controlled is linked by input terminal by DC/DC module, simultaneously by electricity lower than average electricity single battery it is controlled be linked into output end, in real time by electricity be higher than average electricity single battery in electricity be transferred in time electricity lower than average electricity single battery in complete active equalization;The input terminal or output end of the arbitrary controlled access DC/DC module of single battery in battery group string are realized in control, realize that bidirectional high-efficiency is balanced;Voltage and the electricity consistency for completing each single battery of battery group string are actively effective balanced, its two-way and any controlled adjustment needs the single battery of Balance route, reach efficient, quick, multiple parallel balanced control, safe and healthy, the efficient operation for ensureing energy-storage system of accumulator, applying to energy-storage system has great positive effect.

Description

A kind of full monomer actively monitoring equilibrium managing and control system of battery group string and control method
Technical field
The invention belongs to batteries to store energy technical fields, and in particular to a kind of full monomer actively monitoring of battery group string is balanced Managing and control system and control method.
Background technique
Energy-storage system of accumulator is the important composition portion of electric car new energy electric power and smart grid and energy internet Point, especially electrochemical energy storage system enters current transformer by the battery group string that the connection of multiple unit single batteries forms and sets It is standby to carry out charge and discharge, controlled completion electric adjustment and charge and discharge.Due to the physics itself and chemical characteristic of each single battery With certain difference, and during installation and operation environment dimension difference so that the battery in battery group string generates Inconsistency on voltage, electricity affects the efficiency and utilization rate of battery group string entirety, also brings security risk.
In this regard, controlling the real-time monitoring of battery operation, charging and discharging currents, the electricity of each single battery of battery group string Pressure and electricity consistency Balance route are the key that energy-storage system is safe and healthy, efficient operation, in order to solve this problem, if It counts effective battery management system BMS dynamic implement and real-time monitoring is carried out for each single battery and in real time by electricity It is transferred to electricity in time lower than a certain amount of electric power storage of average electricity higher than the electricity in a certain amount of single battery of average electricity In the monomer of pond, the electricity for reaching each single battery in battery group string meets the requirement of consistency electricity range.
Summary of the invention
In order to solve the defects of prior art and insufficient, the present invention proposes that a kind of full monomer actively monitoring of battery group string is equal Weigh managing and control system and control method, specifically includes that the 1st cell batteries, the 2nd cell batteries, the 3rd cell batteries, m are mono- Accumulator body, the 1st cell batteries anode, the 1st cell batteries cathode, the 2nd cell batteries anode, the 2nd cell batteries Cathode, the 3rd cell batteries anode, the 3rd cell batteries cathode, m cell batteries anode, m cell batteries cathode, DC/DC module input anode input direct-current bus, DC/DC module input cathode input direct-current bus, the output of DC/DC module Rectify pole output DC bus, DC/DC module negative pole of output end output DC bus, monitoring and control module, monitoring and control Series connection wire, DC/DC charging module, the gating control of the 1st cell batteries positive DC bus are opened between bus, single battery It closes, the 1st cell batteries negative DC bus gating control switch, the 2nd cell batteries positive DC bus gating are controlled and opened It closes, the 1st cell batteries negative DC bus gating control switch, the 3rd cell batteries positive DC bus gating are controlled and opened It closes, the 1st cell batteries negative DC bus gating control switch, m cell batteries positive DC bus gating are controlled and opened It closes, m cell batteries negative DC bus gating control switch, the 1st cell batteries positive DC bus gating are controlled and opened The anode output DC bus connecting pin of pass, the anode input of the 1st cell batteries positive DC bus gating control switch are straight Flow bus connecting pin, the cathode input direct-current bus connecting pin of the 1st cell batteries negative DC bus gating control switch, the 1 cell batteries negative DC bus gates the cathode output DC bus connecting pin of control switch, the 2nd cell batteries anode DC bus gates the anode output DC bus connecting pin of control switch, the gating control of the 2nd cell batteries positive DC bus Positive input direct-current bus connecting pin, the cathode of the 2nd cell batteries negative DC bus gating control switch for making switch are defeated Enter the cathode output DC bus connection of DC bus connecting pin, the 2nd cell batteries negative DC bus gating control switch End, the positive of the 3rd cell batteries positive DC bus gating control switch export DC bus connecting pin, the 3rd monomer electric power storage Pond positive DC bus gates the positive input direct-current bus connecting pin of control switch, the 3rd cell batteries negative DC bus Gate the cathode input direct-current bus connecting pin of control switch, the 3rd cell batteries negative DC bus gates control switch Cathode exports the anode output direct current mother of DC bus connecting pin, m cell batteries positive DC bus gating control switch Line connecting pin, the positive input direct-current bus connecting pin of m cell batteries positive DC bus gating control switch, m are mono- The cathode input direct-current bus connecting pin of accumulator body negative DC bus gating control switch, m cell batteries cathode are straight The cathode for flowing bus gating control switch exports DC bus connecting pin, in which:
1st cell batteries, the 2nd cell batteries, the 3rd cell batteries, m cell batteries every two phase in order The cathode of adjacent one battery positive voltage of cell batteries and another battery passes through series connection wire between single battery It is connected, constitutes battery group string;
Its positive 1st cell batteries anode of 1st cell batteries is gated by the 1st cell batteries positive DC bus The anode output DC bus connecting pin of control switch gating connection the 1st cell batteries positive DC bus gating control switch And DC/DC mould is connected by the anode output DC bus connecting pin of the 1st cell batteries positive DC bus gating control switch Block output head anode exports DC bus, while its 1st cell batteries cathode of cathode of the 1st cell batteries passes through the 1st monomer Battery terminal negative DC bus gates control switch gating connection the 1st cell batteries negative DC bus gating control switch Cathode exports DC bus connecting pin and exports direct current by the cathode of the 1st cell batteries negative DC bus gating control switch Bus connecting pin connects DC/DC module negative pole of output end and exports DC bus, constitutes the charging power road of the 1st cell batteries Diameter;
Its positive 2nd cell batteries anode of 2nd cell batteries is gated by the 2nd cell batteries positive DC bus The anode output DC bus connecting pin of control switch gating connection the 2nd cell batteries positive DC bus gating control switch And DC/DC mould is connected by the anode output DC bus connecting pin of the 2nd cell batteries positive DC bus gating control switch Block output head anode exports DC bus, while its 2nd cell batteries cathode of cathode of the 2nd cell batteries passes through the 2nd monomer Battery terminal negative DC bus gates control switch gating connection the 2nd cell batteries negative DC bus gating control switch Cathode exports DC bus connecting pin and exports direct current by the cathode of the 2nd cell batteries negative DC bus gating control switch Bus connecting pin connects DC/DC module negative pole of output end and exports DC bus, constitutes the charging power road of the 2nd cell batteries Diameter;
Its positive 3rd cell batteries anode of 3rd cell batteries is gated by the 1st cell batteries positive DC bus The anode output DC bus connecting pin of control switch gating connection the 3rd cell batteries positive DC bus gating control switch And DC/DC mould is connected by the anode output DC bus connecting pin of the 3rd cell batteries positive DC bus gating control switch Block output head anode exports DC bus, while its 3rd cell batteries cathode of cathode of the 3rd cell batteries passes through the 3rd monomer Battery terminal negative DC bus gates control switch gating connection the 3rd cell batteries negative DC bus gating control switch Cathode exports DC bus connecting pin and exports direct current by the cathode of the 1st cell batteries negative DC bus gating control switch Bus connecting pin connects DC/DC module negative pole of output end and exports DC bus, constitutes the charging power road of the 3rd cell batteries Diameter;
Its anode m cell batteries anode of m cell batteries is gated by m cell batteries positive DC bus The anode output DC bus connecting pin of control switch gating connection m cell batteries positive DC bus gating control switch And DC/DC mould is connected by the anode output DC bus connecting pin of m cell batteries positive DC bus gating control switch Block output head anode exports DC bus, while m cell batteries cathode m cell batteries cathode is stored by m monomer Battery cathode DC bus gates the negative of control switch gating connection m cell batteries negative DC bus gating control switch Pole exports DC bus connecting pin and the cathode output direct current mother by m cell batteries negative DC bus gating control switch Line connecting pin connects DC/DC module negative pole of output end and exports DC bus, constitutes the charging power path of m cell batteries;
Its positive 1st cell batteries anode of 1st cell batteries is gated by the 1st cell batteries positive DC bus The positive input direct-current bus connecting pin of control switch gating connection the 1st cell batteries positive DC bus gating control switch And DC/DC mould is connected by the positive input direct-current bus connecting pin of the 1st cell batteries positive DC bus gating control switch Block input anode input direct-current bus, while its 1st cell batteries cathode of cathode of the 1st cell batteries passes through the 1st monomer Battery terminal negative DC bus gates control switch gating connection the 1st cell batteries negative DC bus gating control switch Cathode input direct-current bus connecting pin and the cathode input direct-current that control switch is gated by the 1st cell batteries negative DC bus Bus connecting pin connects DC/DC module input cathode input direct-current bus, constitutes the discharged power road of the 1st cell batteries Diameter;
Its positive 2nd cell batteries anode of 2nd cell batteries is gated by the 2nd cell batteries positive DC bus The positive input direct-current bus connecting pin of control switch gating connection the 2nd cell batteries positive DC bus gating control switch And DC/DC mould is connected by the positive input direct-current bus connecting pin of the 2nd cell batteries positive DC bus gating control switch Block input anode input direct-current bus, while its 2nd cell batteries cathode of cathode of the 2nd cell batteries passes through the 2nd monomer Battery terminal negative DC bus gates control switch gating connection the 2nd cell batteries negative DC bus gating control switch Cathode input direct-current bus connecting pin and the cathode input direct-current that control switch is gated by the 2nd cell batteries negative DC bus Bus connecting pin connects DC/DC module input cathode input direct-current bus, constitutes the discharged power road of the 2nd cell batteries Diameter;
Its positive 3rd cell batteries anode of 3rd cell batteries is gated by the 3rd cell batteries positive DC bus The positive input direct-current bus connecting pin of control switch gating connection the 3rd cell batteries positive DC bus gating control switch And DC/DC mould is connected by the positive input direct-current bus connecting pin of the 3rd cell batteries positive DC bus gating control switch Block input anode input direct-current bus, while its 3rd cell batteries cathode of cathode of the 3rd cell batteries passes through the 3rd monomer Battery terminal negative DC bus gates control switch gating connection the 3rd cell batteries negative DC bus gating control switch Cathode input direct-current bus connecting pin and the cathode input direct-current that control switch is gated by the 3rd cell batteries negative DC bus Bus connecting pin connects DC/DC module input cathode input direct-current bus, constitutes the discharged power road of the 3rd cell batteries Diameter;
Its anode m cell batteries anode of m cell batteries is gated by m cell batteries positive DC bus The positive input direct-current bus connecting pin of control switch gating connection m cell batteries positive DC bus gating control switch And DC/DC mould is connected by the positive input direct-current bus connecting pin of m cell batteries positive DC bus gating control switch Block input anode input direct-current bus, while m cell batteries its cathode m cell batteries cathode passes through m monomer Battery terminal negative DC bus gates control switch gating connection m cell batteries negative DC bus gating control switch Cathode input direct-current bus connecting pin and the cathode input direct-current that control switch is gated by m cell batteries negative DC bus Bus connecting pin connects DC/DC module input cathode input direct-current bus, constitutes the discharged power road of m cell batteries Diameter;
DC/DC module input anode input direct-current bus, DC/DC module input cathode input direct-current bus connect respectively Enter the input terminal of DC/DC charging module, while DC/DC module output head anode output DC bus, DC/DC module output end are negative Pole output DC bus is separately connected the output end of DC/DC charging module, constitutes the charge-discharge electric power road between single battery Diameter;
Monitoring is separately connected the 1st cell batteries positive DC bus gating by monitoring and control bus with control module Control switch, the 1st cell batteries negative DC bus gating control switch, the 2nd cell batteries positive DC bus gating Control switch, the 1st cell batteries negative DC bus gating control switch, the 3rd cell batteries positive DC bus gating Control switch, the 1st cell batteries negative DC bus gating control switch, m cell batteries positive DC bus gating Control switch, m cell batteries negative DC bus gating control switch and DC/DC charging module, constitute battery prison It surveys and link is managed in charge and discharge;
The primary method of control of the full monomer actively monitoring equilibrium managing and control system of its battery group string are as follows:
1) system electrification is run, and progress self-test first, abnormal alarm enters troubleshooting;
2) when normal, monitoring monitors the parameter of each single battery with control module by monitoring with control bus, And the state-of-charge and health status of calculating accumulator;
3) it monitors and selects the single battery that electricity is higher and electricity is relatively low in battery group string with control module judgement, and Control corresponding cell batteries positive DC bus gating control switch and the gating control of cell batteries negative DC bus Switch, by the input direct-current bus of the higher single battery gating access DC/DC charging module of electricity, by the storage that electricity is relatively low The output DC bus of battery cell gating access DC/DC charging module, so that part electricity in the higher single battery of electricity Amount is transferred in the relatively low single battery of electricity by DC/DC charging module;
4) it notes abnormalities, is then alarmed into troubleshooting in charge and discharge process;
5) it monitors with charging and discharging currents and the electricity of control module real time monitoring and adjusting DC/DC charging module and according to setting The strategy set completes the charge and discharge control of electricity transfer;
6) be transferred to 2) step continue to run.
A kind of full monomer actively monitoring equilibrium managing and control system of battery group string proposed by the present invention and control method, utilize wound New original system architecture is realized by DC/DC module that electricity is controlled higher than a certain amount of single battery of average electricity It is linked into input terminal, while electricity is linked into output end lower than a certain amount of single battery of average electricity is controlled, passes through control Electricity is higher than the electricity in a certain amount of single battery of average electricity in real time and shifted in time by DC/DC module operating current processed It is lower than in a certain amount of single battery of average electricity to electricity and completes active equalization;The present invention, which can control, realizes battery group The input terminal or output end of the arbitrary controlled access DC/DC module of single battery, realize that bidirectional high-efficiency is balanced in string;It completes to store The voltage and electricity consistency of each single battery of battery pack string are actively effective balanced, and two-way and any controlled adjustment needs The single battery of Balance route reaches efficient, quick, multiple parallel balanced control, ensures the peace of energy-storage system of accumulator Entirely, health, efficient operation, applying to energy-storage system has great positive effect.
Detailed description of the invention
Fig. 1 is a kind of principle of compositionality block diagram of full monomer actively monitoring equilibrium managing and control system of battery group string.
Specific embodiment
As examples of implementation, in conjunction with Fig. 1 to a kind of full monomer actively monitoring equilibrium managing and control system of battery group string and control Method is described, and still, technology of the invention and scheme are not limited to the present embodiment the content that son provides.
As shown in Figure 1, the present invention proposes a kind of full monomer actively monitoring equilibrium managing and control system of battery group string and controlling party Method specifically includes that the 1st cell batteries (1), the 2nd cell batteries (2), the 3rd cell batteries (3), m cell batteries (m), the 1st cell batteries anode (a11), the 1st cell batteries cathode (aa1), the 2nd cell batteries anode (a21), the 2nd Cell batteries cathode (aa2), the 3rd cell batteries anode (a31), the 3rd cell batteries cathode (aa3), m monomer electric power storage Pond anode (am1), m cell batteries cathode (aam), DC/DC module input anode input direct-current bus (4), DC/DC mould Block input cathode input direct-current bus (5), DC/DC module output head anode output DC bus (6), the output of DC/DC module It holds cathode output DC bus (7), monitor and control module (8), monitoring and the company of series connection between control bus (9), single battery Wiring (10), DC/DC charging module (15), the 1st cell batteries positive DC bus gate control switch (11), the 1st monomer Battery terminal negative DC bus gate control switch (12), the 2nd cell batteries positive DC bus gating control switch (21), 1st cell batteries negative DC bus gating control switch (22), the gating control of the 3rd cell batteries positive DC bus are opened Close (31), the 1st cell batteries negative DC bus gating control switch (32), the choosing of m cell batteries positive DC bus Logical control switch (m1), m cell batteries negative DC bus gating control switch (m2), the 1st cell batteries anode are straight Flow anode output DC bus connecting pin (b11), the 1st cell batteries positive DC bus gating of bus gating control switch The positive input direct-current bus connecting pin (c11) of control switch, the 1st cell batteries negative DC bus gate control switch Cathode input direct-current bus connecting pin (bb1), the cathode output of the 1st cell batteries negative DC bus gating control switch are straight Flow the anode output DC bus connection of bus connecting pin (cc1), the 2nd cell batteries positive DC bus gating control switch Hold (b21), the positive input direct-current bus connecting pin (c21) of the 2nd cell batteries positive DC bus gating control switch, the 2 cell batteries negative DC buses gate the cathode input direct-current bus connecting pin (bb2) of control switch, the 2nd monomer electric power storage The cathode that pond negative DC bus gates control switch exports DC bus connecting pin (cc2), the 3rd cell batteries positive DC Bus gates anode output DC bus connecting pin (b31) of control switch, the gating control of the 3rd cell batteries positive DC bus Make the positive input direct-current bus connecting pin (c31) of switch, the 3rd cell batteries negative DC bus gates the negative of control switch The cathode that pole input direct-current bus connecting pin (bb3), the 3rd cell batteries negative DC bus gate control switch exports direct current Bus connecting pin (cc3), the positive of m cell batteries positive DC bus gating control switch export DC bus connecting pin (bm1), the positive input direct-current bus connecting pin (cm1) of m cell batteries positive DC bus gating control switch, m Cell batteries negative DC bus gates the cathode input direct-current bus connecting pin (bbm) of control switch, m cell batteries The cathode that negative DC bus gates control switch exports DC bus connecting pin (ccm), in which:
1st cell batteries (1), the 2nd cell batteries (2), the 3rd cell batteries (3), m cell batteries (m) according to The cathode of sequentially every two adjacent one battery positive voltage of cell batteries and another battery passes through single battery Between series connection wire (10) be connected, constitute battery group string;
Its positive 1st cell batteries positive (a11) of 1st cell batteries (1) pass through the 1st cell batteries positive DC The anode output that bus gates control switch (11) gating connection the 1st cell batteries positive DC bus gating control switch is straight Flow bus connecting pin (b11) and the anode output DC bus by the 1st cell batteries positive DC bus gating control switch Connecting pin (b11) connects DC/DC module output head anode output DC bus (6), while the 1st cell batteries (1) its cathode 1st cell batteries cathode (aa1) passes through the 1st cell batteries negative DC bus gating control switch (12) gating connection the 1 cell batteries negative DC bus gates cathode output DC bus connecting pin (cc1) of control switch and is stored by the 1st monomer Cathode output DC bus connecting pin (cc1) that battery cathode DC bus gates control switch connects DC/DC module output end Cathode exports DC bus (7), constitutes the charging power path of the 1st cell batteries (1);
Its positive 2nd cell batteries positive (a21) of 2nd cell batteries (2) pass through the 2nd cell batteries positive DC The anode output that bus gates control switch (21) gating connection the 2nd cell batteries positive DC bus gating control switch is straight Flow bus connecting pin (b21) and the anode output DC bus by the 2nd cell batteries positive DC bus gating control switch Connecting pin (b21) connects DC/DC module output head anode output DC bus (6), while the 2nd cell batteries (2) its cathode 2nd cell batteries cathode (aa2) passes through the 2nd cell batteries negative DC bus gating control switch (22) gating connection the 2 cell batteries negative DC buses gate cathode output DC bus connecting pin (cc2) of control switch and are stored by the 2nd monomer Cathode output DC bus connecting pin (cc2) that battery cathode DC bus gates control switch connects DC/DC module output end Cathode exports DC bus (7), constitutes the charging power path of the 2nd cell batteries (2);
Its positive 3rd cell batteries positive (a31) of 3rd cell batteries (3) pass through the 1st cell batteries positive DC The anode output that bus gates control switch (31) gating connection the 3rd cell batteries positive DC bus gating control switch is straight Flow bus connecting pin (b31) and the anode output DC bus by the 3rd cell batteries positive DC bus gating control switch Connecting pin (b31) connects DC/DC module output head anode output DC bus (6), while the 3rd cell batteries (3) its cathode 3rd cell batteries cathode (aa3) passes through the 3rd cell batteries negative DC bus gating control switch (32) gating connection the 3 cell batteries negative DC buses gate cathode output DC bus connecting pin (cc3) of control switch and are stored by the 1st monomer Cathode output DC bus connecting pin (cc3) that battery cathode DC bus gates control switch connects DC/DC module output end Cathode exports DC bus (7), constitutes the charging power path of the 3rd cell batteries (3);
Its anode m cell batteries of m cell batteries (m) positive (am1) pass through m cell batteries positive DC The anode output that bus gates control switch (m1) gating connection m cell batteries positive DC bus gating control switch is straight Flow bus connecting pin (bm1) and the anode output DC bus by m cell batteries positive DC bus gating control switch Connecting pin (bm1) connects DC/DC module output head anode output DC bus (6), while m cell batteries (m) its cathode M cell batteries cathode (aam) passes through m cell batteries negative DC bus gating control switch (m2) gating connection the M cell batteries negative DC bus gates cathode output DC bus connecting pin (ccm) of control switch and is stored by m monomer Cathode output DC bus connecting pin (ccm) that battery cathode DC bus gates control switch connects DC/DC module output end Cathode exports DC bus (7), constitutes the charging power path of m cell batteries (m);
Its positive 1st cell batteries positive (a11) of 1st cell batteries (1) pass through the 1st cell batteries positive DC The anode input that bus gates control switch (11) gating connection the 1st cell batteries positive DC bus gating control switch is straight Flow bus connecting pin (c11) and by the positive input direct-current bus of the 1st cell batteries positive DC bus gating control switch Connecting pin (c11) connects DC/DC module input anode input direct-current bus (4), while the 1st cell batteries (1) its cathode 1st cell batteries cathode (aa1) passes through the 1st cell batteries negative DC bus gating control switch (12) gating connection the 1 cell batteries negative DC bus gates the cathode input direct-current bus connecting pin (bb1) of control switch and is stored by the 1st monomer The cathode input direct-current bus connecting pin (bb1) that battery cathode DC bus gates control switch connects DC/DC module input Cathode input direct-current bus (5) constitutes the discharged power path of the 1st cell batteries (1);
Its positive 2nd cell batteries positive (a21) of 2nd cell batteries (2) pass through the 2nd cell batteries positive DC The anode input that bus gates control switch (21) gating connection the 2nd cell batteries positive DC bus gating control switch is straight Flow bus connecting pin (c21) and by the positive input direct-current bus of the 2nd cell batteries positive DC bus gating control switch Connecting pin (c21) connects DC/DC module input anode input direct-current bus (4), while the 2nd cell batteries (2) its cathode 2nd cell batteries cathode (aa2) passes through the 2nd cell batteries negative DC bus gating control switch (22) gating connection the 2 cell batteries negative DC buses gate the cathode input direct-current bus connecting pin (bb2) of control switch and are stored by the 2nd monomer The cathode input direct-current bus connecting pin (bb2) that battery cathode DC bus gates control switch connects DC/DC module input Cathode input direct-current bus (5) constitutes the discharged power path of the 2nd cell batteries (2);
Its positive 3rd cell batteries positive (a31) of 3rd cell batteries (3) pass through the 3rd cell batteries positive DC The anode input that bus gates control switch (31) gating connection the 3rd cell batteries positive DC bus gating control switch is straight Flow bus connecting pin (c31) and by the positive input direct-current bus of the 3rd cell batteries positive DC bus gating control switch Connecting pin (c31) connects DC/DC module input anode input direct-current bus (4), while the 3rd cell batteries (3) its cathode 3rd cell batteries cathode (aa3) passes through the 3rd cell batteries negative DC bus gating control switch (32) gating connection the 3 cell batteries negative DC buses gate the cathode input direct-current bus connecting pin (bb3) of control switch and are stored by the 3rd monomer The cathode input direct-current bus connecting pin (bb3) that battery cathode DC bus gates control switch connects DC/DC module input Cathode input direct-current bus (5) constitutes the discharged power path of the 3rd cell batteries (3);
Its anode m cell batteries of m cell batteries (m) positive (am1) pass through m cell batteries positive DC The anode input that bus gates control switch (1m) gating connection m cell batteries positive DC bus gating control switch is straight Flow bus connecting pin (cm1) and by the positive input direct-current bus of m cell batteries positive DC bus gating control switch Connecting pin (cm1) connects DC/DC module input anode input direct-current bus (4), while m cell batteries (m) its cathode M cell batteries cathode (aam) passes through m cell batteries negative DC bus gating control switch (m2) gating connection the M cell batteries negative DC bus gates the cathode input direct-current bus connecting pin (bbm) of control switch and is stored by m monomer The cathode input direct-current bus connecting pin (bbm) that battery cathode DC bus gates control switch connects DC/DC module input Cathode input direct-current bus (5) constitutes the discharged power path of m cell batteries (m);
DC/DC module input anode input direct-current bus (4), DC/DC module input cathode input direct-current bus (5) It is respectively connected to the input terminal of DC/DC charging module (15), while DC/DC module output head anode exports DC bus (6), DC/ DC module negative pole of output end output DC bus (7) is separately connected the output end of DC/DC charging module (15), constitutes battery list Charge-discharge electric power path between body;
It monitors and the 1st cell batteries positive DC mother is separately connected by monitoring and control bus (9) with control module (8) Line selection is leading to control switch (11), the 1st cell batteries negative DC bus gating control switch (12), the 2nd cell batteries just Pole DC bus gates control switch (21), the 1st cell batteries negative DC bus gates control switch (22), the 3rd monomer Battery positive voltage DC bus gate control switch (31), the 1st cell batteries negative DC bus gating control switch (32), M cell batteries positive DC bus gating control switch (m1), the gating control of m cell batteries negative DC bus are opened (m2) and DC/DC charging module (15) are closed, accumulator monitoring is constituted and link is managed in charge and discharge;
The primary method of control of the full monomer actively monitoring equilibrium managing and control system of its battery group string are as follows:
1) system electrification is run, and progress self-test first, abnormal alarm enters troubleshooting;
2) when normal, monitoring monitors each single battery with control bus (9) by monitoring with control module (8) Parameter, and the state-of-charge and health status of calculating accumulator;
3) it monitors and selects the battery list that electricity is higher and electricity is relatively low in battery group string with control module (8) judgement Body, and control corresponding cell batteries positive DC bus gating control switch and cell batteries negative DC bus gating Control switch, by the input direct-current bus of higher single battery gating access DC/DC charging module (15) of electricity, by electricity The output DC bus of relatively low single battery gating access DC/DC charging module (15), so that the battery that electricity is higher Part electricity is transferred in the relatively low single battery of electricity by DC/DC charging module (15) in monomer;
4) it notes abnormalities, is then alarmed into troubleshooting in charge and discharge process;
5) monitor with control module (8) real time monitoring and adjust the charging and discharging currents and electricity of DC/DC charging module (15) And the charge and discharge control of electricity transfer is completed according to the strategy of setting;
6) be transferred to 2) step continue to run.
A kind of full monomer actively monitoring equilibrium managing and control system of battery group string proposed by the present invention and control method, utilize wound New original system architecture is realized by DC/DC module that electricity is controlled higher than a certain amount of single battery of average electricity It is linked into input terminal, while electricity is linked into output end lower than a certain amount of single battery of average electricity is controlled, passes through control Electricity is higher than the electricity in a certain amount of single battery of average electricity in real time and shifted in time by DC/DC module operating current processed It is lower than in a certain amount of single battery of average electricity to electricity and completes active equalization;The present invention, which can control, realizes battery group The input terminal or output end of the arbitrary controlled access DC/DC module of single battery, realize that bidirectional high-efficiency is balanced in string;It completes to store The voltage and electricity consistency of each single battery of battery pack string are actively effective balanced, and two-way and any controlled adjustment needs The single battery of Balance route reaches efficient, quick, multiple parallel balanced control, ensures the peace of energy-storage system of accumulator Entirely, health, efficient operation, applying to energy-storage system has great positive effect.

Claims (1)

1. a kind of full monomer actively monitoring equilibrium managing and control system of battery group string and control method, specifically include that the 1st monomer electric power storage Pond (1), the 2nd cell batteries (2), the 3rd cell batteries (3), m cell batteries (m), the 1st cell batteries anode (a11), the 1st cell batteries cathode (aa1), the 2nd cell batteries positive (a21), the 2nd cell batteries cathode (aa2), the 3 cell batteries anode (a31), the 3rd cell batteries cathode (aa3), m cell batteries positive (am1), m monomer store Battery cathode (aam), DC/DC module input anode input direct-current bus (4), DC/DC module input cathode input direct-current Bus (5), DC/DC module output head anode output DC bus (6), DC/DC module negative pole of output end export DC bus (7), series connection wire (10), DC/DC charge between monitoring and control module (8), monitoring and control bus (9), single battery Module (15), the 1st cell batteries positive DC bus gate control switch (11), the 1st cell batteries negative DC bus Gate control switch (12), the 2nd cell batteries positive DC bus gates control switch (21), the 1st cell batteries cathode DC bus gates control switch (22), the 3rd cell batteries positive DC bus gating control switch (31), the 1st monomer storage Battery cathode DC bus gates control switch (32), m cell batteries positive DC bus gating control switch (m1), the M cell batteries negative DC bus gates control switch (m2), the 1st cell batteries positive DC bus gates control switch Anode output DC bus connecting pin (b11), the 1st cell batteries positive DC bus gating control switch anode input The cathode input direct-current bus that DC bus connecting pin (c11), the 1st cell batteries negative DC bus gate control switch connects Connect end (bb1), the 1st cell batteries negative DC bus gating control switch cathode output DC bus connecting pin (cc1), 2nd cell batteries positive DC bus gates anode output DC bus connecting pin (b21) of control switch, the 2nd monomer stores The positive input direct-current bus connecting pin (c21) of anode DC bus gating control switch, the 2nd cell batteries cathode are straight Flow cathode input direct-current bus connecting pin (bb2), the 2nd cell batteries negative DC bus gating of bus gating control switch Cathode output DC bus connecting pin (cc2) of control switch, the 3rd cell batteries positive DC bus gate control switch Anode output DC bus connecting pin (b31), the anode input of the 3rd cell batteries positive DC bus gating control switch are straight Flow the cathode input direct-current bus connection of bus connecting pin (c31), the 3rd cell batteries negative DC bus gating control switch Hold (bb3), cathode output DC bus connecting pin (cc3) of the 3rd cell batteries negative DC bus gating control switch, the M cell batteries positive DC bus gates anode output DC bus connecting pin (bm1), m monomer electric power storage of control switch Pond positive DC bus gates the positive input direct-current bus connecting pin (cm1) of control switch, m cell batteries negative DC Bus gates the cathode input direct-current bus connecting pin (bbm) of control switch, the gating control of m cell batteries negative DC bus The cathode of system switch exports DC bus connecting pin (ccm), in which:
1st cell batteries (1), the 2nd cell batteries (2), the 3rd cell batteries (3), m cell batteries (m) are in order The cathode of one battery positive voltage of every two adjacent cell batteries and another battery is gone here and there between passing through single battery Join connecting line (10) to be connected, constitutes battery group string;
Its positive 1st cell batteries positive (a11) of 1st cell batteries (1) pass through the 1st cell batteries positive DC bus The anode output direct current for gating control switch (11) gating connection the 1st cell batteries positive DC bus gating control switch is female Line connecting pin (b11) is simultaneously connected by the anode output DC bus of the 1st cell batteries positive DC bus gating control switch (b11) connection DC/DC module output head anode output DC bus (6) is held, while its cathode the 1st of the 1st cell batteries (1) is single Accumulator body cathode (aa1) passes through the 1st cell batteries negative DC bus gating control switch (12) gating the 1st monomer of connection Battery terminal negative DC bus gates cathode output DC bus connecting pin (cc1) of control switch and by the 1st cell batteries Cathode output DC bus connecting pin (cc1) that negative DC bus gates control switch connects DC/DC module negative pole of output end It exports DC bus (7), constitutes the charging power path of the 1st cell batteries (1);
Its positive 2nd cell batteries positive (a21) of 2nd cell batteries (2) pass through the 2nd cell batteries positive DC bus The anode output direct current for gating control switch (21) gating connection the 2nd cell batteries positive DC bus gating control switch is female Line connecting pin (b21) is simultaneously connected by the anode output DC bus of the 2nd cell batteries positive DC bus gating control switch (b21) connection DC/DC module output head anode output DC bus (6) is held, while its cathode the 2nd of the 2nd cell batteries (2) is single Accumulator body cathode (aa2) passes through the 2nd cell batteries negative DC bus gating control switch (22) gating the 2nd monomer of connection Battery terminal negative DC bus gates cathode output DC bus connecting pin (cc2) of control switch and by the 2nd cell batteries Cathode output DC bus connecting pin (cc2) that negative DC bus gates control switch connects DC/DC module negative pole of output end It exports DC bus (7), constitutes the charging power path of the 2nd cell batteries (2);
Its positive 3rd cell batteries positive (a31) of 3rd cell batteries (3) pass through the 1st cell batteries positive DC bus The anode output direct current for gating control switch (31) gating connection the 3rd cell batteries positive DC bus gating control switch is female Line connecting pin (b31) is simultaneously connected by the anode output DC bus of the 3rd cell batteries positive DC bus gating control switch (b31) connection DC/DC module output head anode output DC bus (6) is held, while its cathode the 3rd of the 3rd cell batteries (3) is single Accumulator body cathode (aa3) passes through the 3rd cell batteries negative DC bus gating control switch (32) gating the 3rd monomer of connection Battery terminal negative DC bus gates cathode output DC bus connecting pin (cc3) of control switch and by the 1st cell batteries Cathode output DC bus connecting pin (cc3) that negative DC bus gates control switch connects DC/DC module negative pole of output end It exports DC bus (7), constitutes the charging power path of the 3rd cell batteries (3);
Its anode m cell batteries of m cell batteries (m) positive (am1) pass through m cell batteries positive DC bus The anode output direct current for gating control switch (m1) gating connection m cell batteries positive DC bus gating control switch is female Line connecting pin (bm1) is simultaneously connected by the anode output DC bus of m cell batteries positive DC bus gating control switch (bm1) connection DC/DC module output head anode output DC bus (6) is held, while its cathode of m cell batteries (m) m is mono- Accumulator body cathode (aam) passes through m cell batteries negative DC bus gating control switch (m2) gating connection m monomer Battery terminal negative DC bus gates cathode output DC bus connecting pin (ccm) of control switch and by m cell batteries Cathode output DC bus connecting pin (ccm) that negative DC bus gates control switch connects DC/DC module negative pole of output end It exports DC bus (7), constitutes the charging power path of m cell batteries (m);
Its positive 1st cell batteries positive (a11) of 1st cell batteries (1) pass through the 1st cell batteries positive DC bus The positive input direct-current for gating control switch (11) gating connection the 1st cell batteries positive DC bus gating control switch is female Line connecting pin (c11) is simultaneously connected by the positive input direct-current bus of the 1st cell batteries positive DC bus gating control switch (c11) connection DC/DC module input anode input direct-current bus (4) is held, while its cathode the 1st of the 1st cell batteries (1) is single Accumulator body cathode (aa1) passes through the 1st cell batteries negative DC bus gating control switch (12) gating the 1st monomer of connection Battery terminal negative DC bus gates the cathode input direct-current bus connecting pin (bb1) of control switch and by the 1st cell batteries The cathode input direct-current bus connecting pin (bb1) that negative DC bus gates control switch connects DC/DC module input cathode Input direct-current bus (5) constitutes the discharged power path of the 1st cell batteries (1);
Its positive 2nd cell batteries positive (a21) of 2nd cell batteries (2) pass through the 2nd cell batteries positive DC bus The positive input direct-current for gating control switch (21) gating connection the 2nd cell batteries positive DC bus gating control switch is female Line connecting pin (c21) is simultaneously connected by the positive input direct-current bus of the 2nd cell batteries positive DC bus gating control switch (c21) connection DC/DC module input anode input direct-current bus (4) is held, while its cathode the 2nd of the 2nd cell batteries (2) is single Accumulator body cathode (aa2) passes through the 2nd cell batteries negative DC bus gating control switch (22) gating the 2nd monomer of connection Battery terminal negative DC bus gates the cathode input direct-current bus connecting pin (bb2) of control switch and by the 2nd cell batteries The cathode input direct-current bus connecting pin (bb2) that negative DC bus gates control switch connects DC/DC module input cathode Input direct-current bus (5) constitutes the discharged power path of the 2nd cell batteries (2);
Its positive 3rd cell batteries positive (a31) of 3rd cell batteries (3) pass through the 3rd cell batteries positive DC bus The positive input direct-current for gating control switch (31) gating connection the 3rd cell batteries positive DC bus gating control switch is female Line connecting pin (c31) is simultaneously connected by the positive input direct-current bus of the 3rd cell batteries positive DC bus gating control switch (c31) connection DC/DC module input anode input direct-current bus (4) is held, while its cathode the 3rd of the 3rd cell batteries (3) is single Accumulator body cathode (aa3) passes through the 3rd cell batteries negative DC bus gating control switch (32) gating the 3rd monomer of connection Battery terminal negative DC bus gates the cathode input direct-current bus connecting pin (bb3) of control switch and by the 3rd cell batteries The cathode input direct-current bus connecting pin (bb3) that negative DC bus gates control switch connects DC/DC module input cathode Input direct-current bus (5) constitutes the discharged power path of the 3rd cell batteries (3);
Its anode m cell batteries of m cell batteries (m) positive (am1) pass through m cell batteries positive DC bus The positive input direct-current for gating control switch (1m) gating connection m cell batteries positive DC bus gating control switch is female Line connecting pin (cm1) is simultaneously connected by the positive input direct-current bus of m cell batteries positive DC bus gating control switch (cm1) connection DC/DC module input anode input direct-current bus (4) is held, while its cathode of m cell batteries (m) m is mono- Accumulator body cathode (aam) passes through m cell batteries negative DC bus gating control switch (m2) gating connection m monomer Battery terminal negative DC bus gates the cathode input direct-current bus connecting pin (bbm) of control switch and by m cell batteries The cathode input direct-current bus connecting pin (bbm) that negative DC bus gates control switch connects DC/DC module input cathode Input direct-current bus (5) constitutes the discharged power path of m cell batteries (m);
DC/DC module input anode input direct-current bus (4), DC/DC module input cathode input direct-current bus (5) are respectively The input terminal of DC/DC charging module (15) is accessed, while DC/DC module output head anode exports DC bus (6), DC/DC mould Block negative pole of output end output DC bus (7) is separately connected the output ends of DC/DC charging module (15), constitute single battery it Between charge-discharge electric power path;
Monitoring is separately connected the choosing of the 1st cell batteries positive DC bus by monitoring and control bus (9) with control module (8) Logical control switch (11), the 1st cell batteries negative DC bus gating control switch (12), the 2nd cell batteries anode are straight Flow bus gating control switch (21), the 1st cell batteries negative DC bus gates control switch (22), the 3rd monomer electric power storage Pond positive DC bus gates control switch (31), the 1st cell batteries negative DC bus gates control switch (32), m Cell batteries positive DC bus gates control switch (m1), m cell batteries negative DC bus gates control switch (m2) and link is managed in DC/DC charging module (15), composition accumulator monitoring and charge and discharge;
The primary method of control of the full monomer actively monitoring equilibrium managing and control system of its battery group string are as follows:
1) system electrification is run, and progress self-test first, abnormal alarm enters troubleshooting;
2) when normal, monitoring monitors the ginseng of each single battery with control module (8) by monitoring with control bus (9) Number, and the state-of-charge and health status of calculating accumulator;
3) it monitors and selects the single battery that electricity is higher and electricity is relatively low in battery group string with control module (8) judgement, and Control corresponding cell batteries positive DC bus gating control switch and the gating control of cell batteries negative DC bus Switch, it is by the input direct-current bus of higher single battery gating access DC/DC charging module (15) of electricity, electricity is relatively low Single battery gating access DC/DC charging module (15) output DC bus so that the single battery that electricity is higher Middle part electricity is transferred in the relatively low single battery of electricity by DC/DC charging module (15);
4) it notes abnormalities, is then alarmed into troubleshooting in charge and discharge process;
5) charging and discharging currents and the electricity with control module (8) real time monitoring and adjusting DC/DC charging module (15) are monitored and is pressed The charge and discharge control of electricity transfer is completed according to the strategy of setting;
6) be transferred to 2) step continue to run.
CN201710839387.3A 2017-09-19 2017-09-19 A kind of full monomer actively monitoring equilibrium managing and control system of battery group string and control method Pending CN109525002A (en)

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Cited By (1)

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CN110492553A (en) * 2019-07-22 2019-11-22 国网江苏省电力有限公司电力科学研究院 A kind of electrochemical energy storage system active equalization circuit and balance control method

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DE102010037094A1 (en) * 2010-08-20 2012-02-23 Hochschule Regensburg Charge equalization circuit for e.g. lithium ion battery cells of vehicle, has connection unit delivering battery cell via direct current/direct current converter selectively either with another battery cell or connecting third cell
EP2757653A1 (en) * 2013-01-17 2014-07-23 Fico Triad S.A. Electronic device suitable for managing the direction of current and battery made up of modules which incorporate said device

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EP2161810A1 (en) * 2008-09-05 2010-03-10 O2 Micro, Inc. Cell balancing system comprising a transformer
DE102010037094A1 (en) * 2010-08-20 2012-02-23 Hochschule Regensburg Charge equalization circuit for e.g. lithium ion battery cells of vehicle, has connection unit delivering battery cell via direct current/direct current converter selectively either with another battery cell or connecting third cell
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CN110492553A (en) * 2019-07-22 2019-11-22 国网江苏省电力有限公司电力科学研究院 A kind of electrochemical energy storage system active equalization circuit and balance control method
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