WO2015156648A1 - Circuit d'équilibrage d'éléments actifs utilisant un circuit de mesure de la tension d'éléments d'un procédé de charge de condensateur - Google Patents

Circuit d'équilibrage d'éléments actifs utilisant un circuit de mesure de la tension d'éléments d'un procédé de charge de condensateur Download PDF

Info

Publication number
WO2015156648A1
WO2015156648A1 PCT/KR2015/003641 KR2015003641W WO2015156648A1 WO 2015156648 A1 WO2015156648 A1 WO 2015156648A1 KR 2015003641 W KR2015003641 W KR 2015003641W WO 2015156648 A1 WO2015156648 A1 WO 2015156648A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
voltage
converter
cell
capacitor
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/KR2015/003641
Other languages
English (en)
Korean (ko)
Inventor
나혁휘
황호석
남종하
강덕하
이동희
지해성
반기현
장종식
조성철
신덕수
한유진
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.)
ITM Semiconductor Co Ltd
Original Assignee
ITM Semiconductor 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 ITM Semiconductor Co Ltd filed Critical ITM Semiconductor Co Ltd
Publication of WO2015156648A1 publication Critical patent/WO2015156648A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries

Definitions

  • the present invention relates to an active cell balancing circuit using a circuit for measuring individual cell voltages through a capacitor charging method.
  • the cell voltage measurement circuit in the battery management system applied to various types of electric vehicles (xEVs), energy storage systems, and uninterruptible power supplies that are currently used is a photomos relay for the purpose of insulating the energy storage unit and the system unit. Cap Charging Method using is mainly used.
  • cell balancing caused by capacity imbalance is an important problem in an application of multiple cells in which several cells are connected in series. This capacity imbalance in the cell is seen as an unbalance in the cell voltage in terms of the battery management system.
  • charging or discharging is prohibited by certain cells in the overcharging and overdischarging areas during the charging and discharging process, normal cell capacity cannot be used. Repeated use through this process acts as a factor in reducing the efficiency of the battery pack and shortening the life of a particular cell.
  • passive cell balancing which discharges a high voltage cell through a resistor and maintains the same voltage as other cells
  • Passive type has the advantage of low price.
  • active cell balancing through the application of a DC / DC converter (Converter), etc. are under study.
  • DC / DC converter Converter
  • the present invention is to provide a circuit that can perform cell balancing while measuring the cell voltage.
  • a cell balancing circuit includes: a battery unit including a plurality of battery cells 10 and a balancing resistor R_Bal connected to each of output terminals of the plurality of battery cells 10; A first relay unit P-R6 connected to an output terminal of the battery unit; And a charging unit C2 connected to an output terminal of the first relay unit.
  • the first current limited by the first balancing resistor connected to the first battery cell B1 having the highest voltage among the plurality of battery cells may be charged to the charging unit through the first relay unit.
  • the energy charged in the charging unit may be configured to charge the second battery cell B4 having the lowest voltage among the plurality of batteries through the first relay unit.
  • the cell balancing circuit may further include a converter 80 connected between the battery unit and the first relay unit.
  • the converter may be configured to control the operation state through the control unit 90 included in the converter.
  • the battery unit when the voltage of the battery unit is high, the battery unit operates as a step-down converter to charge the charging unit with the voltage of the battery unit, and when the voltage of the battery unit is low, the battery unit operates as a boost converter. May be arranged to discharge.
  • the cell balancing circuit comprises: a capacitor; A second relay; And an AD converter.
  • the capacitor may be connected to an output terminal of the battery unit, the second relay may be connected to one end of the capacitor, and the AD converter may be connected to an output terminal of the second relay.
  • the voltage of any one of a plurality of batteries included in the battery unit is charged in the capacitor, and when the second relay is turned on, the voltage charged in the capacitor is supplied to the AD converter. It may be intended to provide.
  • the first relay unit may be implemented using a photomoss relay, and the charging unit may be implemented using an ultracapacitor or a small capacity lithium ion battery.
  • the first converter may be implemented using a bidirectional DC / DC converter.
  • the power source can be separated and the leakage current can be prevented.
  • the existing battery management system since the existing battery management system is used, a low cost system can be realized.
  • FIG. 1 illustrates a passive cell balancing circuit according to one embodiment.
  • FIG. 2 illustrates an active cell balancing circuit using a transformer in accordance with one embodiment.
  • 3A shows a cell voltage measuring circuit by a capacitor charging method.
  • FIG. 3B illustrates a first process of performing voltage measurement of each battery cell in the cell voltage measuring circuit shown in FIG. 3A.
  • FIG. 4A illustrates a cell voltage measurement and cell balancing circuit according to an embodiment of the present invention.
  • FIG. 4B shows an example of a temporal relationship between several processes performed in the circuit shown in FIG. 4A.
  • FIG. 4C shows a timing diagram of a process performed in the circuit shown in FIG. 4A.
  • 5A illustrates a cell voltage measurement and cell balancing circuit according to another embodiment of the present invention.
  • FIG. 5B shows an example of the bidirectional DC / DC converter of the circuit shown in FIG. 5A.
  • FIG. 6A shows the internal structure of the bidirectional DC / DC converter shown in FIG. 5A.
  • FIG. 6B shows a control unit of the bidirectional DC / DC converter shown in FIG. 6A.
  • FIG. 7A shows a case where the bidirectional DC / DC converter shown in FIG. 5A operates in the step-down mode.
  • FIG. 7B is a diagram for describing a case where the first transistor Q1 is in an on-state in the step-down DC / DC converter illustrated in FIG. 7A.
  • FIG. 7C is a diagram for describing a case where the first transistor Q1 is in an off-state in the step-down DC / DC converter shown in FIG. 7A.
  • FIG. 8A shows a case where the bidirectional DC / DC converter shown in FIG. 5A operates in a boost mode.
  • FIG. 8B is a diagram for describing a case where the second transistor Q2 is in an on-state in the boost type DC / DC converter illustrated in FIG. 8A.
  • FIG. 8C is a diagram for describing a case where the second transistor Q2 is in an off-state in the boost type DC / DC converter illustrated in FIG. 8A.
  • FIG. 1 illustrates a passive cell balancing circuit 100 according to one embodiment.
  • the passive cell balancing circuit 100 shown in FIG. 1 includes a battery pack 110 including a plurality of battery cells 10, a balancing resistor R_Bal, a photo coupler 12, and an MCU I / It is comprised including O (11).
  • the passive cell balancing circuit 100 calculates an average value of the voltages of the battery cells 10, selects the first battery cell 10 (ex: battery cell B1) higher than the average value by a predetermined level, and selects the I of the MCU.
  • the photocoupler 12 is operated through / O 11 to forcibly discharge the first cell 10 with the balancing resistor R_Bal. Accordingly, the voltage of the first battery cell 10 is balanced with the voltage of the other battery cells 10 (eg, battery cells B2, B3, and B4). In this case, the photocoupler 12 is used for separating power from the power of the battery management system and the battery pack.
  • the passive cell balancing circuit 100 according to FIG. 1 has an advantage that the circuit configuration is simple and can be implemented at low cost. On the other hand, there is a disadvantage in that heat generation occurs in the balancing resistor R_Bal during discharging and efficiency decreases, and it is difficult to perform balancing above a predetermined current due to the characteristics of the discharge method through the resistor.
  • FIG. 2 illustrates an active cell balancing circuit 200 using a transformer in accordance with one embodiment.
  • the active cell balancing circuit 200 shown in FIG. 2 uses a Buck DC / DC converter for stepping down the voltage of the battery pack 110 to the voltage of the battery cell 10.
  • Cell balancing (eg, B4) 10 having a low voltage is performed through the step-down type DC / DC converter.
  • the design and control of the DC / DC converter for the active cell balancing circuit 200 is not easy, and there is a disadvantage in that a redesign is required according to the pack configuration.
  • the use of a DC / DC converter adversely affects EMI (electromagnetic interference) and EMC (electromagnetic compatibility) characteristics, and the cost increases.
  • FIGS. 3A and 3B a cell voltage measuring circuit according to an exemplary embodiment will be described with reference to FIGS. 3A and 3B.
  • 3A illustrates a cell voltage measuring circuit 300 using a capacitor charging method.
  • FIG. 3B illustrates a first process (Process 1) for performing voltage measurement of each battery cell 10 in the cell voltage measurement circuit 300 shown in FIG. 3A.
  • the cell voltage measuring circuit 300 illustrated in FIG. 3A includes a battery pack 110 including a plurality of battery cells 10, and a positive terminal (+) and a negative terminal ( ⁇ ) of each battery cell 10.
  • a resistor R_Cap having one terminal connected thereto, a relay unit 20 connected to the other terminal of the resistor R_Cap, a voltage measuring capacitor C1 30, and a voltage measuring relay unit P-R5. 40), and the AD converter (50).
  • the resistor R_Cap is a resistor for limiting a current charged in the voltage measuring capacitor 30.
  • the relay unit 20 may include a plurality of relays (P-Rn, where n is a natural number).
  • the first relay unit 21 may include two relays P-R1
  • the fourth relay unit 24 may include two relays P-R4.
  • the relay P-Rn may be implemented using a photomos relay.
  • the first process of measuring the voltage of the battery cell 10 may be represented by a timing diagram of each of the relay units 20 and 40 over time.
  • the voltage measuring capacitor 30 is charged with the voltage of the first battery cell B1.
  • the first capacitor 21 is charged to the voltage measuring capacitor 30.
  • the read voltage is read into the AD converter 50.
  • the second relay unit P-R2 22 is in an on-state, the voltage of the second battery cell B2 10 is charged in the voltage measuring capacitor 30.
  • the voltage measuring relay unit (P-R5) 40 is in the on-state, the voltage charged in the voltage measuring capacitor 30 is changed. It is read by the AD converter 50. By repeating the above process, the voltage of the battery cell 10 is read in an insulated state so that the cell voltage can be measured.
  • the battery pack 110 includes four battery cells B1, B2, B3, and B4 10.
  • the voltage of the first battery B1 has the highest value
  • the voltage of the fourth battery B4 has the lowest value
  • the second battery B2 and the third battery Assume that the voltage in B3) has an average value.
  • 4A illustrates a cell voltage measurement and cell balancing circuit 400 in accordance with one embodiment of the present invention.
  • 4B illustrates an example of a temporal relationship between several processes performed in the circuit 400 shown in FIG. 4A.
  • 4C shows a timing diagram of the process performed in the circuit 400 shown in FIG. 4A.
  • the cell voltage measurement and cell balancing circuit 400 shown in FIG. 4A includes a balancing resistor R_Bal and a charging relay in the cell voltage measurement circuit 300 shown in FIG. 3A.
  • the unit 60 may further include a charging capacitor C2 70. Accordingly, there is an advantage that it can be implemented at low cost.
  • the balancing resistor R_Bal is connected between the output terminal of each battery cell 10 and the first side of each relay unit 20.
  • the charging relay unit 60 may include a plurality of relays P-R6.
  • the first side of the charging relay unit 60 may be connected to the second side of each relay unit 20, and the charging capacitor 70 may be connected to the second side of the charging relay unit 60.
  • the charging capacitor 70 may be implemented using an ultra capacitor or a secondary battery.
  • the secondary battery may be, for example, a small capacity lithium ion battery.
  • the resistor R_Cap connected to the output terminal of each battery cell 10 in the cell voltage measuring circuit 300 shown in FIG. 3A is the balancing resistor R_Bal and the voltage measuring capacitor 30 in FIG. 4A. Located between and to limit the inrush current to the voltage measuring capacitor (30).
  • the cell voltage measurement and cell balancing circuit 400 is able to perform the measurement of the cell voltage and the balancing between cells at the same time.
  • the first process P100, the second process P200, and the third process P300 may be sequentially performed over time.
  • the first process P100 may be the same as the process of measuring the voltages of the plurality of battery cells 10 described above with reference to FIGS. 3A and 3B.
  • the second process P200 compares the plurality of voltages of the plurality of battery cells 10 measured by the first process P100 with each other, thereby having the lowest voltage and the battery cell 10 having the highest voltage.
  • the battery cell 10 may be configured to be determined.
  • the ranking among the plurality of battery cells 10 may be determined based on the voltage of each battery cell.
  • the second process P200 may be performed by, for example, a separate microprocessor connected to the output terminal of the AD converter 50 of FIG. 3A.
  • the second process P200 may be performed separately after the first process P100 is completed.
  • the second process P200 may be together while the first process P100 is being performed. May be performed.
  • the third process P300 may be configured to perform cell balancing through the battery cells 10 determined by the second process P200.
  • time periods from start to completion of the processes P100, P200, and P300 shown in FIG. 4B do not overlap each other, but in other embodiments, the time periods may be overlapped with each other.
  • the third process P300 may be as shown in FIG. 4C.
  • the section in which the first relay unit P-R1 and the charging relay unit P-R6 are in an on-state may be, for example, sections T-C1, T-C2, ..., T-Cn, n may be a natural number).
  • the first relay unit P-R1 and the charging relay unit P-R6 are turned off, and the fourth relay unit P-R4 and the charging relay unit P-R6 are turned off. Can be turned on.
  • the sixth battery having the lowest voltage among the battery capacitors 10 from the charging capacitor C2 70 charged with the voltage of the first battery cell B1 having the highest voltage among the battery cells 10.
  • the charging power may move to the cell B6. That is, the charging capacitor 70 may mean that it is discharged.
  • the first relay unit P-R1 and the charging relay unit P-R6 are turned off and the fourth relay unit P-R4 and the charging relay unit P-R6 are on-state.
  • the interval to be may be, for example, intervals T-D1, T-D2, ..., T-Dk, where k is a natural number.
  • the voltage of the first battery cell B1 may be lowered and the voltage of the sixth battery cell B6 may be increased.
  • the third process P300 As the third process P300 is performed, as the time passes, the voltage of the first battery cell B1 gradually decreases, and the voltage of the fourth battery cell B4 gradually increases.
  • the magnitude of the voltage of the battery cell B1 and the magnitude of the voltage of the fourth battery cell B4 may be balanced to a similar level. Accordingly, the amount of energy (C_Em, where m is a natural number) charged in the charging capacitor 70 may decrease gradually over time (that is, C_E1> C_E2>...> C_Em).
  • the amount of energy D_Ei discharged from the charging capacitor 70 (where i is a natural number) may also decrease gradually over time (that is, D_E1> D_E2>...> D_Ei).
  • the voltage measuring relay unit P-R5 40 is also driven to check the voltages of the battery cells 10 currently being balanced. For example, the relay unit P-R1 is turned on and charged to a voltage in the voltage measuring capacitor C1 30, and then turned off or the relay unit P-R4 is turned on. Whenever the apparatus is turned off after receiving the energy from the voltage measuring capacitor 30, the voltage measuring relay unit P-R5 40 is turned on to turn on the voltage of each battery cell B1 or B4. May be read into AD converter 50. At this time, the section in which the voltage measuring relay unit 40 is in the on-state is, for example, a section T-S1, T-S2, ..., T-Sp, where p is a natural number.
  • FIG. 5A illustrates a cell voltage measurement and cell balancing circuit 500 according to another embodiment of the present invention.
  • FIG. 5B illustrates an example of a bidirectional DC / DC converter of the circuit 500 shown in FIG. 5A.
  • the circuit 500 shown in FIG. 5A is a bidirectional DC located in front of the charging relay unit (P-R6) 60 in the circuit 400 shown in FIG. 4A. It may be configured to further include a / DC converter (Bi-directional DC / DC Converter) (80). Accordingly, since current control is possible, the efficiency of cell balancing can be increased by minimizing or removing the balancing resistor R_Bal.
  • a / DC converter Bi-directional DC / DC Converter
  • the bidirectional DC / DC converter 80 when the voltage of the battery cell 10 connected to the bidirectional DC / DC converter 80 is relatively high, the bidirectional DC / DC converter 80 operates as a step-down type DC / DC converter 81 to charge the voltage of the battery cell 10.
  • the voltage of the battery cell 10 connected to the capacitor 70 When the voltage of the battery cell 10 connected to the capacitor 70 is relatively low when the capacitor 70 is charged, it operates as a boost type DC / DC converter 82 to discharge the charge capacitor 70. It is supposed to perform balancing.
  • the battery cell 10 connected to the left side of the DC / DC converter 80 is the battery cell having the highest voltage among the plurality of battery cells, the charge to be supplied with the current from the right side of the DC / DC converter 80 is performed.
  • the DC / DC converter 80 is a step-down type since the voltage of the battery cell having the highest voltage that supplies current from the left side of the DC / DC converter 80 is always higher than or equal to the voltage across the capacitor 70. It is necessary to operate as the DC / DC converter 81.
  • the battery cell 10 connected to the left side of the DC / DC converter 80 is the battery cell having the lowest voltage among the plurality of battery cells, the current must be supplied from the right side of the DC / DC converter 80.
  • the charging capacitor 70 supplies current to the battery cell having the lowest voltage, the voltage across the charging capacitor 70 may be lower than the voltage of the battery cell having the lowest voltage.
  • the / DC converter 80 needs to operate as a multiplier type DC / DC converter 82.
  • a current may flow in the direction 85 from the point S2 to the point S1, and the current Flowchart can be controlled. The current cannot flow in the direction 86 from the point S2 to the point S1.
  • FIG. 6A shows the internal structure of the bidirectional DC / DC converter 80 shown in FIG. 5A.
  • FIG. 6B shows the control unit 90 of the bidirectional DC / DC converter 80 shown in FIG. 6A.
  • FIG. 7A shows a case where the bidirectional DC / DC converter 80 shown in FIG. 5A operates in the step-down mode 81.
  • FIG. 7B is a diagram for explaining a case where the first transistor Q1 is in an on-state in the step-down DC / DC converter 81 shown in FIG. 7A.
  • FIG. 7C is a diagram for describing a case where the first transistor Q1 is in an off-state in the step-down DC / DC converter 81 shown in FIG. 7A.
  • FIG. 8A shows a case where the bidirectional DC / DC converter 80 shown in FIG. 5A operates in the boost mode 82.
  • FIG. 8B is a diagram for explaining a case where the second transistor Q2 is in an on-state in the boost type DC / DC converter 82 shown in FIG. 8A.
  • FIG. 8C is a diagram for explaining a case where the second transistor Q2 is in an off-state in the boost type DC / DC converter 82 shown in FIG. 8A.
  • the internal structure of the bidirectional DC / DC converter 80 includes a controller 90 and a capacitor configured to control the transistors Q1 and Q2 and the transistors Q1 and Q2. C3 and C4, and the inductor (L).
  • the bidirectional DC / DC converter 80 is configured to allow current to flow in both directions 83 and 85, and to control the current flowing in both directions 83 and 85 according to an operation mode.
  • the controller 90 is configured to perform a control operation in an insulated state through the photocoupler.
  • the control operation of the DC / DC converter 80 is to perform the operation in the Buck Converter Mode (Bouck Converter Mode) or Boost Mode (Boost Converter Mode).
  • the second transistor Q2 is always turned off by the controller 90 so that the converter 81 is included in the second transistor Q2.
  • the first current flow path 71 through the second parasitic diode D2 may be formed.
  • the first transistor Q1 may be turned on or off by the controller 90.
  • the first transistor Q1 may include the first parasitic diode D1 included in the first transistor Q1. Since only the first current flow path 71 through the third current flow path 73 and the second parasitic diode D2 is formed, the current cannot flow in the direction 83.
  • the converter 82 configured to operate in the boosted mode has the first transistor Q1 always turned on by the controller 90 so that the fourth current flow path 74 can be operated. It may be formed.
  • the second transistor Q2 is turned on by the controller 90, current flows in the direction 85 from the point S1 to the point S2 as shown in FIG. 8B. It cannot be.
  • the second transistor Q2 is turned off, the current flowing through the fourth current flow path 74 is controlled.
  • an ultracapacitor or a secondary battery may be connected to the output terminal S2 of the capacitor C4 side of the bidirectional DC / DC converter 80.
  • the secondary battery may be, for example, a small capacity lithium ion battery.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un bloc-batterie comprenant : une pluralité d'éléments de batterie ; et une unité de stockage d'énergie temporaire conçue pour être connectée de manière sélective à la pluralité d'éléments de batterie. Un troisième procédé est conçu pour être mis en œuvre, le troisième procédé comprenant : une étape de stockage pour stocker, dans l'unité de stockage d'énergie temporaire, une partie de l'énergie stockée dans un premier élément de batterie parmi la pluralité d'éléments de batterie ; et une étape de fourniture pour fournir l'énergie stockée dans l'unité de stockage d'énergie temporaire à un second élément de batterie parmi la pluralité d'éléments de batterie. De plus, le troisième procédé est conçu pour être répété jusqu'à ce que la différence entre une première tension du premier élément de batterie et une seconde tension du second élément de batterie devienne inférieure ou égale à une valeur prédéfinie.
PCT/KR2015/003641 2014-04-11 2015-04-10 Circuit d'équilibrage d'éléments actifs utilisant un circuit de mesure de la tension d'éléments d'un procédé de charge de condensateur Ceased WO2015156648A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2014-0043585 2014-04-11
KR20140043585 2014-04-11

Publications (1)

Publication Number Publication Date
WO2015156648A1 true WO2015156648A1 (fr) 2015-10-15

Family

ID=54288136

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2015/003641 Ceased WO2015156648A1 (fr) 2014-04-11 2015-04-10 Circuit d'équilibrage d'éléments actifs utilisant un circuit de mesure de la tension d'éléments d'un procédé de charge de condensateur

Country Status (1)

Country Link
WO (1) WO2015156648A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105871006A (zh) * 2016-04-14 2016-08-17 宁波飞驰达电子科技发展有限公司 锂离子电池组的检测及主动平衡充电系统
CN107086624A (zh) * 2017-05-16 2017-08-22 沃太能源南通有限公司 一种锂离子电池主动均衡电路
CN109565086A (zh) * 2016-08-26 2019-04-02 松下知识产权经营株式会社 蓄电系统
CN111327092A (zh) * 2020-02-15 2020-06-23 江苏大学 一种电动汽车动力电池均衡控制电路及方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007043788A (ja) * 2005-08-01 2007-02-15 Yazaki Corp 組電池の充電状態調整方法及びその装置
KR20080053713A (ko) * 2006-12-11 2008-06-16 현대자동차주식회사 조전지의 충전 균등화 회로 장치
KR20120087433A (ko) * 2011-01-28 2012-08-07 주식회사 이아이지 복수의 이차 전지에 있어서 전압 균등화 회로
KR20130127056A (ko) * 2012-05-14 2013-11-22 현대모비스 주식회사 배터리팩 밸런싱 방법 및 이를 적용한 배터리시스템
JP2014050269A (ja) * 2012-09-03 2014-03-17 Exergy Power Systems Co Ltd 組電池の均等充電システム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007043788A (ja) * 2005-08-01 2007-02-15 Yazaki Corp 組電池の充電状態調整方法及びその装置
KR20080053713A (ko) * 2006-12-11 2008-06-16 현대자동차주식회사 조전지의 충전 균등화 회로 장치
KR20120087433A (ko) * 2011-01-28 2012-08-07 주식회사 이아이지 복수의 이차 전지에 있어서 전압 균등화 회로
KR20130127056A (ko) * 2012-05-14 2013-11-22 현대모비스 주식회사 배터리팩 밸런싱 방법 및 이를 적용한 배터리시스템
JP2014050269A (ja) * 2012-09-03 2014-03-17 Exergy Power Systems Co Ltd 組電池の均等充電システム

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105871006A (zh) * 2016-04-14 2016-08-17 宁波飞驰达电子科技发展有限公司 锂离子电池组的检测及主动平衡充电系统
CN109565086A (zh) * 2016-08-26 2019-04-02 松下知识产权经营株式会社 蓄电系统
CN107086624A (zh) * 2017-05-16 2017-08-22 沃太能源南通有限公司 一种锂离子电池主动均衡电路
CN107086624B (zh) * 2017-05-16 2023-04-07 沃太能源股份有限公司 一种锂离子电池主动均衡电路
CN111327092A (zh) * 2020-02-15 2020-06-23 江苏大学 一种电动汽车动力电池均衡控制电路及方法
CN111327092B (zh) * 2020-02-15 2024-01-12 成都鹰明智通科技股份有限公司 一种电动汽车动力电池均衡控制电路及方法

Similar Documents

Publication Publication Date Title
WO2010087608A2 (fr) Appareil d'égalisation de charge et procédé pour groupe de batteries raccordées en série
WO2010087545A1 (fr) Appareil d'égalisation de charge pour chaîne de batterie connectée en série utilisant une source de tension régulée
WO2021006566A1 (fr) Dispositif et procédé de diagnostic de cellule de batterie
WO2021049753A1 (fr) Appareil et procédé de diagnostic de batterie
WO2020076127A1 (fr) Dispositif et procédé de gestion de batterie
WO2021033956A1 (fr) Système de batterie et son procédé d'utilisation
WO2012128445A1 (fr) Procédé et dispositif de commande de connexion de blocs de batteries
WO2014112685A1 (fr) Circuit d'équilibrage d'éléments de batterie utilisant la résonance en série lc
WO2022149958A1 (fr) Dispositif de commande de batterie, système de batterie, système d'alimentation électrique et procédé de commande de batterie
WO2013094871A1 (fr) Dispositif de chargement de batterie pour véhicule électrique
WO2018074809A1 (fr) Système d'équilibrage de cellule et procédé de commande
WO2020149537A1 (fr) Système et procédé de charge de batterie
WO2018135735A1 (fr) Procédé de charge de batterie et dispositif de charge
EP4277078B1 (fr) Appareil de circuit de commande de système de batterie et système de gestion de batterie
WO2015156648A1 (fr) Circuit d'équilibrage d'éléments actifs utilisant un circuit de mesure de la tension d'éléments d'un procédé de charge de condensateur
WO2020189998A1 (fr) Dispositif et procédé de commande de banc de batteries
WO2023008758A1 (fr) Dispositif de commande destiné à commander un convertisseur pour charger/décharger une batterie, et chargeur/déchargeur
WO2022145708A1 (fr) Dispositif et procédé d'auto-équilibrage de batteries pour système de stockage d'énergie
WO2012165890A9 (fr) Appareil de nivellement de la tension pour relier des supports d'unité destinés à stocker de l'électricité, et système de stockage d'électricité le comprenant
WO2013133555A1 (fr) Dispositif radiocommandé pour stockage d'électricité par batterie
WO2016064224A1 (fr) Appareil et procédé de commande de courants électriques
WO2021101083A1 (fr) Appareil d'équilibrage de cellules, appareil à batterie le comprenant et procédé d'équilibrage de cellules
WO2023075164A1 (fr) Dispositif de batterie, système de gestion de batterie et procédé de configuration de période de précharge
WO2018079918A1 (fr) Dispositif d'équilibrage de cellules de batterie
JP2018157746A (ja) バッテリパック及びバッテリパックを外部バッテリシステムに並列に接続する方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15777443

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15777443

Country of ref document: EP

Kind code of ref document: A1