CN112737005A - Storage battery formation charging and discharging power supply - Google Patents

Storage battery formation charging and discharging power supply Download PDF

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Publication number
CN112737005A
CN112737005A CN202011445503.1A CN202011445503A CN112737005A CN 112737005 A CN112737005 A CN 112737005A CN 202011445503 A CN202011445503 A CN 202011445503A CN 112737005 A CN112737005 A CN 112737005A
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CN
China
Prior art keywords
charging
discharging
circuit
charge
discharge
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.)
Pending
Application number
CN202011445503.1A
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Chinese (zh)
Inventor
丁建华
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.)
Hangzhou lead lithium Zhixing Technology Co.,Ltd.
Original Assignee
Bengbu Ruide New Energy Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bengbu Ruide New Energy Technology Co ltd filed Critical Bengbu Ruide New Energy Technology Co ltd
Priority to CN202011445503.1A priority Critical patent/CN112737005A/en
Publication of CN112737005A publication Critical patent/CN112737005A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • 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
    • H01M10/44—Methods for charging or discharging
    • H01M10/446—Initial charging measures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • 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
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • 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
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • 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
    • 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

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  • 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)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

The invention relates to a storage battery formation charging and discharging power supply which comprises a power transformer, a direct current bus, a charging and discharging circuit used for charging and discharging a group of storage batteries to be formed corresponding to the direct current bus, and a charging and discharging control unit used for controlling the charging and discharging circuit, wherein the charging and discharging circuit is electrically connected with the direct current bus. The storage battery formation charging and discharging power supply has low cost and good safety performance.

Description

Storage battery formation charging and discharging power supply
Technical Field
The present invention relates to the field of charging and discharging for the production of accumulators.
Background
In the production process of the storage battery, the storage battery needs to be repeatedly charged and discharged for formation. The storage battery formation charge-discharge main circuit structure widely used in China is a silicon controlled circuit structure, and by using the structure, charge electric energy and discharge electric energy can be exchanged on an alternating current power grid, power grid harmonic pollution can be generated to the input alternating current power grid during use, and a large amount of electric energy is wasted. In addition, the existing main discharging circuit structure is that a charging and discharging circuit only charges and discharges a group of storage batteries corresponding to the charging and discharging circuit, so that the cost of the charging and discharging circuit is overhigh.
Disclosure of Invention
In order to solve the technical problem, the invention provides a storage battery formation charging and discharging power supply which comprises a power transformer, a direct current bus, a charging and discharging circuit used for charging and discharging a group of storage batteries to be formed corresponding to the direct current bus, and a charging and discharging control unit used for controlling the charging and discharging circuit, wherein the charging and discharging circuit is electrically connected with the direct current bus.
Further, the charge and discharge control unit controls the charge and discharge circuit to charge at least two groups of storage batteries to be formed through a shunt circuit.
Further, the number of the charge and discharge circuits is smaller than the number of the groups of the storage batteries to be formed.
Further, when one group of storage batteries to be formed is discharged by a certain discharge current, the discharge current charges the other group of storage batteries to be formed through the shunt circuit.
Further, the shunt circuit is a switch shunt circuit or a capacitor shunt circuit or a relay shunt circuit.
Furthermore, each charge and discharge circuit is controlled by a corresponding charge and discharge control unit, and the shunt circuit is controlled by a corresponding charge and discharge control unit.
The storage battery formation charging and discharging power supply has low cost and good safety performance.
Drawings
FIG. 1 is a schematic block diagram of a charging and discharging power supply of the present invention;
fig. 2 is a schematic structural view of a charge and discharge power supply part of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, a storage battery formation charge/discharge power supply according to the present invention includes: power transformer 1, three-phase reactor 2 and three pairs of fully-controlled power electronic modulesThree-phase PWM reversible rectifier 3 composed of IGBT power modules Q1 and Q2, Q3 and Q4, Q5 and Q6, dc bus unit 4, and first charge-discharge circuit C composed of IGBT power tube Q111And a second charge-discharge circuit C consisting of an IGBT power tube Q21kWherein, Q1, Q3 and Q5 are upper tubes, Q2, Q4 and Q6 are lower tubes, the three-phase primary coil group of the power transformer 1 is connected in a triangle shape and is connected with the power supply of the power grid, the three-phase secondary coil group of the power transformer 1 is connected in a star shape and is respectively connected with the inlet wires of the three-phase reactor 2, three outlet wires of the three-phase reactor 2 are respectively connected with the emitter of Q1 and the collector of Q2, the emitter of Q3 and the collector of Q4, the emitter of Q5 and the collector of Q6, the collectors of Q1, Q3 and Q5 are connected in parallel and then are connected with the positive direct current bus A + of the direct current bus unit 4, the emitters of Q2, Q4 and Q6 are connected in parallel and then are connected with the negative direct current bus B-of the direct current bus unit 4, and a plurality of charging and discharging circuits are connected in parallel between the positive and the negative direct current bus A + and B1To CKK is greater than or equal to 2, two of the K are respectively a first charge-discharge circuit C1And a Kth charging and discharging circuit CKAnd other charging and discharging circuit diagrams are not shown. Each charging and discharging circuit is connected to a shunt circuit 7, and each group of storage battery B to be formed1To BmConnected to a shunt circuit 7, each group of storage battery to be formed can be connected to a corresponding charge and discharge circuit C through the shunt circuit 7 according to the requirement1To CKAny combination of charging and discharging circuits, how to show, battery B1And BmAre respectively connected to the charging and discharging circuit C through switches K1 and K21In the above, at least part of the charge and discharge circuits may charge at least two groups of storage batteries to be formed, or each charge and discharge circuit may charge each group of storage batteries to be formed in a formation manner, and one group of batteries may be designed into 10 or 20 batteries as one group according to the design. The shunt circuit 7 may be a switch matrix as shown in fig. 2, or may be a circuit in which a relay, a capacitor, or the like can perform shunt control. To charging and discharging circuit C1To CKThe charge/discharge control unit 8 that controls the shunt circuit 7 is connected to the charge/discharge circuit and the shunt circuit 7, respectively. Charge and dischargeThe control unit 8 can be 1 control unit for simultaneously controlling the charging and discharging circuit C1To CKAnd a plurality of shunt circuits 7, that is, each of the charging circuit and the shunt circuit has a separate control unit, as long as the object of the present invention can be achieved, and the electrical connection between the secondary batteries to be formed can be performed as needed by controlling the shunt circuit 7.
Following by a charging circuit C1And CKFor battery B1And battery BmThe working process of the charging and discharging is described in detail as an example:
when the charging power supply starts to work, that is, the charging circuit starts to charge the battery, the charging and discharging control unit 8 controls the charging and discharging circuit C1For battery B1After charging with large current for a period of time, the charging and discharging control unit 8 controls the current divider 7 and the charging and discharging circuit C1For battery B1Charging with small current and closing switch K2 for battery BmCharging with a certain current while controlling the charging/discharging circuit CkFor battery BmAlso charges with a certain current to reach the battery BmAnd converted into a charging current. When the formation is charged, the charging and discharging control unit 8 can obtain the charging current according to the characteristics of the formation battery, and control the charging and discharging circuit to provide the required current, meanwhile, when the current provided by the charging and discharging circuit is large enough, through the control of the shunt 7, the redundant current is shunted to other batteries to be formed which need to be formed, thereby the charging current of each charging and discharging circuit can be fully utilized, the current provided by different charging and discharging circuits is combined, on the one hand, the maximum power which can be provided by the charging and discharging circuit can be reduced, on the other hand, the number of the charging and discharging circuit can be reduced, and one charging and discharging circuit does not need to correspond to a group of charging formation batteries, namely, the best K value is smaller than the value of m. Greatly reduces the production cost. When battery B1Discharging, battery BmDuring charging, the charging/discharging control unit 8 can control the charging/discharging circuit C1Shut down, battery B1Is discharged and charges the battery Bm with a certain discharge current through the shunt circuit 7, so that electric power is suppliedThe storage batteries are fully utilized, and are not directly fed back to a power grid through a direct current bus. Therefore, the power utilization load of the direct current bus can be greatly reduced, the use cost of the direct current bus is reduced, the power utilization safety of the direct current bus is also improved, the harmonic pollution of a power grid is avoided, and the electric energy is saved. The discharging current can be used for charging other storage batteries to be formed through the shunt circuit or charging other storage batteries to be formed through the shunt circuit and the charging and discharging circuit. In addition, the discharged electric energy and the electric energy required to be input cannot be completely balanced, and when the electric energy of the direct current bus unit 4 has surplus, namely: when the voltage of the positive direct current bus has a rising trend, the surplus electric energy is switched on and off according to a certain sequence through a power module of the PWM reversible rectifier 3, and the direct current is inverted into alternating current with high power factor and fed back to a power grid for other electric equipment of a user to use; when the electric energy of the direct current bus unit 4 is insufficient, the three-phase PWM reversible rectifier 3 works in a rectification state and supplements the electric energy in time. The shunt of any one charge-discharge circuit can be shunted to any one or more groups of storage batteries which need to be charged and formed, and when the storage batteries are discharged, the discharge current can also charge and form any one or more groups of storage batteries which need to be charged and formed according to the needs. The group of batteries to be formed is formed by connecting a certain number of batteries to be formed in series according to the parameters of the charging circuit.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.

Claims (6)

1. The utility model provides a storage battery ization becomes charge-discharge power supply, includes power transformer, direct current bus, is used for waiting to become the charge-discharge circuit that the battery carries out the charge-discharge rather than corresponding a set of, is used for control charge-discharge circuit's charge-discharge control unit, charge-discharge circuit with direct current bus electricity is connected, its characterized in that still includes shunt circuit, charge-discharge circuit passes through shunt circuit waits to become the battery with the multiunit and carries out the electricity and be connected, the multiunit waits to become to carry out the electricity through shunt circuit between the battery and connects.
2. The storage battery formation charging and discharging power supply according to claim 1, wherein the charging and discharging control unit controls the charging and discharging circuit to charge at least two groups of storage batteries to be formed through a shunt circuit.
3. The storage battery formation charging and discharging power supply according to claim 2, wherein the number of the charging and discharging circuits is smaller than the number of the groups of the storage batteries to be formed.
4. A storage battery formation charging and discharging power supply according to any one of claims 1 to 3, wherein when a group of storage batteries to be formed is discharged with a certain discharge current, the discharge current charges another group of storage batteries to be formed through the shunt circuit.
5. A storage battery charging and discharging power supply according to any one of claims 1 to 3, wherein said shunt circuit is a switch shunt circuit or a capacitor shunt circuit or a relay shunt circuit.
6. The rechargeable battery pack according to any one of claims 1-3, wherein each charging/discharging circuit is controlled by a corresponding charging/discharging control unit, and the shunt circuit is controlled by a corresponding charging/discharging control unit.
CN202011445503.1A 2020-12-11 2020-12-11 Storage battery formation charging and discharging power supply Pending CN112737005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011445503.1A CN112737005A (en) 2020-12-11 2020-12-11 Storage battery formation charging and discharging power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011445503.1A CN112737005A (en) 2020-12-11 2020-12-11 Storage battery formation charging and discharging power supply

Publications (1)

Publication Number Publication Date
CN112737005A true CN112737005A (en) 2021-04-30

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Application Number Title Priority Date Filing Date
CN202011445503.1A Pending CN112737005A (en) 2020-12-11 2020-12-11 Storage battery formation charging and discharging power supply

Country Status (1)

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CN (1) CN112737005A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201118256Y (en) * 2007-11-02 2008-09-17 江苏金帆电源科技有限公司 Accumulator formation charging-discharging main circuit structure capable of counter charging
CN101359752A (en) * 2008-07-08 2009-02-04 深圳子木科技有限公司 Method for implementing battery discharging energy recycling by adopting inner and outer master tape construction
CN104158273A (en) * 2014-08-07 2014-11-19 东莞市冠佳电子设备有限公司 Battery forming and capacity grading system
CN108390427A (en) * 2018-02-08 2018-08-10 珠海格力电器股份有限公司 Battery charge-discharge circuit, energy source interconnection scheduling system and its control method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201118256Y (en) * 2007-11-02 2008-09-17 江苏金帆电源科技有限公司 Accumulator formation charging-discharging main circuit structure capable of counter charging
CN101359752A (en) * 2008-07-08 2009-02-04 深圳子木科技有限公司 Method for implementing battery discharging energy recycling by adopting inner and outer master tape construction
CN104158273A (en) * 2014-08-07 2014-11-19 东莞市冠佳电子设备有限公司 Battery forming and capacity grading system
CN108390427A (en) * 2018-02-08 2018-08-10 珠海格力电器股份有限公司 Battery charge-discharge circuit, energy source interconnection scheduling system and its control method

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TA01 Transfer of patent application right
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Effective date of registration: 20211124

Address after: 311100 room 1120, 3rd floor, building 1, 187 Yunxi Road, Tangqi Town, Yuhang District, Hangzhou City, Zhejiang Province

Applicant after: Hangzhou lead lithium Zhixing Technology Co.,Ltd.

Address before: 233000 No.31, building 25, District 9, Guangcai market, bengshan District, Bengbu City, Anhui Province

Applicant before: Bengbu Ruide New Energy Technology Co.,Ltd.

WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20210430