[go: up one dir, main page]

WO2011158051A1 - Système et procédé d'équilibrage de la charge et/ou de charge d'unités de stockage d'énergie électrique - Google Patents

Système et procédé d'équilibrage de la charge et/ou de charge d'unités de stockage d'énergie électrique Download PDF

Info

Publication number
WO2011158051A1
WO2011158051A1 PCT/HU2011/000055 HU2011000055W WO2011158051A1 WO 2011158051 A1 WO2011158051 A1 WO 2011158051A1 HU 2011000055 W HU2011000055 W HU 2011000055W WO 2011158051 A1 WO2011158051 A1 WO 2011158051A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy
transfer
capacitive element
units
alternating current
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/HU2011/000055
Other languages
English (en)
Inventor
Ferenc Stangl
József MARINKA-TÓTH
János Kincses
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2011158051A1 publication Critical patent/WO2011158051A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H02J7/0014—Circuits for equalisation of charge between batteries
    • H02J7/0018—Circuits for equalisation of charge between batteries using separate charge circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
    • H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
    • H02M7/05—Capacitor coupled rectifiers

Definitions

  • the invention relates to a system and a method for charge balancing and/or charging electrical energy-storing units coupled in series.
  • the invention especially relates to a system and a method for energy management of numerous energy- storing units, wherein the individual energy-storing units are monitored separately and the charging and/or charge balancing of them is controlled in a selective manner.
  • Prior art rechargeable batteries are made up of numerous cells and are provided with an internal electronics in order to ensure the required power as well as to meet the safety requirements.
  • the individual cells are connected in series so as to provide higher battery voltage for high-voltage applications, such as computers or vehicles.
  • Metal hybrid cells e.g. nickel-metal-hybrid NiMH, as well as lithium based, e.g. Li-ion cells may damage or even explode if they are out of the designated charging range.
  • the internal electronics are therefore primarily used to ensure safe voltage, current and temperature values.
  • batteries may additionally contain circuits to monitor the individual cells, by way of example, for the purposes of shorting out irregular cells or balancing voltages between cells.
  • Systems and methods for charge balancing serially coupled energy-storing units, such as battery cells are disclosed e.g.
  • Prior art solutions generally realize passive balancing, i.e. deflecting excess energy through a resistance, as it can be implemented in a relatively simple and cost- effective manner. According to the prior art technology, there is no such active balancing solution (selective feed of cells and units, selective energy transmission among them), which could provide high efficiency.
  • US 7,615,966 B2 discloses a system and a method for the management energy relations (charge balancing and/or charging) of serially coupled electrical energy- storing units, which system comprises energy-control units connected between the poles of the individual energy-storing units, which energy-control units are provided with a control circuit and an energy-transfer circuit, as well as a central control being in communicating connection with the control circuits of the energy-control units, gathering information about the individual energy-storing units and sending commands to the control circuits based on the received information.
  • Fig. 1 is a schematic construction of a system according to the invention
  • Fig. 2 is a scheme of an energy-storing unit and an energy-control unit of a system according to the invention
  • Fig. 3 is a scheme of a preferred energy-transfer circuit
  • Fig. 4 is a scheme of an another preferred energy-transfer circuit
  • Fig. 5 is a scheme of a further preferred energy-transfer circuit
  • Fig. 6 is a scheme of a yet another preferred energy-transfer circuit
  • Fig. 7 is a schematic construction of a further embodiment
  • Fig. 8 is a scheme of an energy-storing unit and an energy-control unit of the embodiment in Fig. 7,
  • Fig. 9 is a scheme of a preferred energy-transfer circuit of the embodiment in Fig. 7
  • Fig. 10 is a scheme of an another preferred energy-transfer circuit of the embodiment in Fig. 7,
  • Fig. 11 is a scheme of a further preferred energy-transfer circuit of the embodiment in Fig. 7, and
  • Fig. 12 is a scheme of a yet another preferred energy-transfer circuit of the embodiment in Fig. 7.
  • the system is used for charge balancing and/or charging of serially coupled electrical energy-storing units 10, preferably battery cells (in the given case units consisting of parallel coupled cells).
  • the main charging voltage is connected to the two poles of the series made up of energy-storing units 10.
  • the system according to the invention may also be applied for providing the main charge; in which case no further charging voltage need to be connected to the poles of the series.
  • the system according to the invention comprises energy-control units 12 connected between the poles of the individual energy-storing units 10 as well as a central controller 16 being in communicating connection with the energy-control units 12 - with their control circuits to be described later - and gathering information about the individual energy-storing units 10, and sending commands to the control circuits based on the received information.
  • the central controller 16 preferably collects information about the charging status of the individual energy-storing units 10, battery cells, and sends commands to the control circuits of the energy-control units 12 based on the received information to charge the individual battery cells or to balance their relative charge status.
  • the control circuits of the energy-control units 12 are preferably in chain-like, voltage isolated, two-way communicating connection with the central controller 16.
  • Communication can be made through a communication line 14 by means of any suitable protocol in either an analogous or digital form.
  • Voltage-isolation is preferably established by means of so-called uplink or downlink coupling capacitors 18 connected between the individual energy-control units 12, namely between their respective control circuits.
  • the coupling capacitors 18 are high-voltage capacitors, therefore, in the case of an accidental line break between the cells, the circuits are protected from blowing out. In the case of a line break or contact failure, the whole voltage of the battery pack would appear at the two points of the broken contact.
  • the circuits of the energy-control units 12 operate at low-voltage, typically at 2.5 to 4.2 V (Li-ion), the high-voltage up to 600 to 1000 V, depending on the number of cells, appearing on them would cause instantaneous damage. Due to the serial coupling capacitors 18, which capacitors have a small value, e.g. some nF, no current of such magnitude may appear that would damage the electronics.
  • the energy-control units 12 preferably gather information not only regarding the charge status of each individual energy-storing unit 10, but also other parameters, by way of example cell temperature - informative with respect to the status of individual cells - is even measured by means of thermometers 20.
  • the central controller 16 may provide additional control functions by means of control signals 30, moreover via a communication channel 32 it can be connected to e.g. a not illustrated display system.
  • a high-frequency (preferably a frequency exceeding 1 kHz, or even up to 25 - 100 - 1000 kHz), capacitively (Figs. 1 to 12), preferably resonantly (Figs. 7 to 12) coupled central alternating current energy source is used for the purposes of charge balancing and/or charging, by means of which active balancing and low-loss selective charge can be realized in an extraordinarily advantageous manner.
  • - Energy may originate from one central source only, therefore, the individual cell controllers are merely able to derive energy from the central source, if necessary.
  • balancing and charging according to the invention constitute an improvement in that the efficiency of the system is much greater than that of any of the above-described solutions.
  • the capacitive energy feeder - being a resonant energy feeder in a preferred embodiment - may also operate at a voltage exceeding cell voltage, therefore, the losses coming from the remnant voltages of the semiconductors may be reduced significantly beside that this solution bears only at most minimal cost increase compared to passive balancing.
  • high-voltage capacitive coupling may mean e.g. that beside a cell voltage of typically a few V, the alternating current energy source may have a voltage of up to 500 - 1000 V; the energy-transfer capacitive elements realizing the capacitive coupling are to be selected with a corresponding voltage.
  • the energy- transfer capacitor 24 together with energy-reconductor capacitor 28 shown in the figure and to be described later, are a part of the energy-control unit 12 and are specially highlighted in the drawing for the purposes of illustration only.
  • feeding into the low-voltage energy- storing units 10 can only be realized by dividing down and converting the voltage.
  • This, according to the invention is realized so that the energy-transfer capacitors 24 are switched by means of a controlled switching means, preferably via pulse- width modulation.
  • the energy-control units 12 are preferably provided with a control circuit 40 comprising a microcontroller and an energy- transfer circuit 50, in a way as shown in Fig. 2.
  • the energy-transfer circuits 50 are connected to a feed conductor 22 coupled to the alternating current energy source and comprise: - an energy-transfer capacitor 24 connected to the feed conductor 22 enabling capacitive energy flow between the alternating current energy source and the given energy-storing unit 10, as well as
  • a switching means operated by means of the control circuit 40 and suitable for realizing energy transfer in a selective manner.
  • the high-frequency energy originating from the central source according to the present invention is preferably of rectangular pulse form, as in this case the transferable energy packages are easy to calculate and realize via pulse-width modulation.
  • the alternating current energy source is not shown in Fig. 1 , and is a part of the central controller 16 in the preferred embodiment described herein. Of course, the alternating current energy source can be separately realized from the central controller 16.
  • the potential of the alternating current energy source may exceed the cell voltage, even can be a multiple of the cell voltage, in this way the loss of the rectifiers in the energy-control units 12 can be lowered even to 1 %.
  • a pulse-width modulation controlled voltage-converter is arranged In the energy- control units 12, switching on only in the case when equalizing energy is required by the given cell.
  • the voltage is transformed down to the cell potential with very good efficiency, thereby providing the necessary balancing current.
  • a filling factor of 0 to 99 % can be set, thereby the voltage of the alternating current energy source can be divided down to even extraordinarily small values. This allows for the use of a feed voltage of, for example, even 500 to 1000 V.
  • the energy transfer can be two-directional, when high-frequency feedback to the central equalizing high-frequency network is possible via additional circuit elements.
  • the maximum energy feeding factor of the central high-frequency energy supply network is proportional to the frequency and to the value of the energy-transfer capacitor 24, while it depends quadratically on the amplitude.
  • An energy-reconductor capacitor 28 seen in Fig. 1 is required when the full high- frequency current is not intended to be passed across the cells.
  • the energy- reconductor capacitors 28 are connected to a lead-off conductor 26, which latter is connected e.g. to a means constituting a part of the central controller 16 and being suitable to lead off the alternating current energy.
  • the energy-transfer circuit 50 comprises, in addition to the energy-transfer capacitor 24, only rectifiers and a switch 52 being operated by means of the control circuit 40 in a pulse-width modulation manner.
  • the switch 52 is preferably realized with a FET.
  • the full charging current flows through the diodes, therefore the efficiency is not the best.
  • the energy-transfer circuit 50 comprises a puffer inductance 54 placed between the energy-transfer capacitor 24 and the positive pole of the energy-storing unit 10. This latter circuit element has a filtering and energy-storing function.
  • the embodiment comprises a fuse 42 for the case of any internal cell line break or contact break, as well as a suppressor diode 44 for dissipating any accidental over- voltage imposed on the cell.
  • the voltage of the energy-storing unit 10 and the signal of the thermometer 20 are introduced into the control circuit 40, which are then each converted into digital format by means of A/D converters A/D v and A/D T , respectively.
  • Fig. 3 shows another embodiment of the energy-transfer circuit 50 realizing a highly efficient one-way feed.
  • the energy-transfer circuit 50 comprises:
  • an internal feed capacitor 56 chargeable via the energy-transfer capacitor 24, one pole thereof being connected to the negative pole of the energy-storing unit 10, and establishing an internal feedpoint 57 with its other pole, as well as
  • one pole of the puffer inductance 54 is interconnected between the first and the second controlled feed switches 58, 60, the other pole being connected to the positive pole of the energy-storing unit 10.
  • the charge of the internal feed capacitor 56 is realized through a supplying half diode bridge connected between its poles, wherein one pole of the energy-transfer capacitor 24 is connected to the feed conductor 22 whilst the other pole is connected between the diodes of the supplying half diode bridge.
  • the feed switches 58, 60 have three states:
  • the voltage of internal feed-point 57 exceeds the cell voltage. Voltage division between the voltages of internal feed-point 57 and energy-storing unit 10 is determined by the filling factor of the switching of feed switches 58, 60. The voltage difference evolving in this way defines the direction and value of the current. In the illustrated embodiment, the filling factor should be determined so that the current flows from the direction of the internal feed point 57 towards the energy-storing unit 10. In this embodiment, therefore, a switching means is employed having switching elements, enabling in a controlled manner the internal feed capacitor 56 to be charged or the energy stored within to be fed into the given energy-storing unit 10.
  • the filtering capacitor 62 shown in the figure gives protection against high- frequency noise, as well as it can be suitable for feeding a microprocessor of the control circuit 40.
  • the energy-reconductor capacitor 28 in the energy-transfer circuit 50 is connected to the negative pole of the energy-storing unit 10, and is suitable, in the case of high impedance cells, for the alternating current to leave the battery through it.
  • Fig. 4 an embodiment of the energy-transfer circuit 50 is shown, which realizes a two-directional energy feed with high efficiency.
  • the switching means further comprises releaser switches 64, 66 by-passing the diodes of the supplying half diode bridge. These provide a high-frequency energy releasing from the internal feed point 57 across the energy- transfer capacitor 24.
  • the filling factors of feed switches 58, 60 are to be set so that voltage should reach the desired AC amplitude at internal feed point 57. As in such cases energy does not flow from the feed conductor 22, the voltage of the internal feed point 57 is determined only by the voltage of the energy- storing unit 10 and the filling factor.
  • a switching means is controlled, which also comprise switching elements releasing the energy stored in the internal feed capacitor 56 to the alternating current energy source.
  • the energy sent in this way can be re-converted by another similar energy-control unit 12 in the system into the appropriate form and can be filled into the respective energy-storing unit 10.
  • the energy-transfer circuit 50 of a particularly preferred embodiment of the invention is shown in Fig. 5.
  • This embodiment realizes a one-directional, so-called full bridge feed with high efficiency.
  • the energy-reconductor capacitor 28 in the energy-transfer circuit 50 is interconnected between the diodes of a lead-off half diode bridge connected between the poles of the internal feed capacitor 56. It is a great advantage of this embodiment, that the recurring high-frequency current does not flow through the impedance of the battery cells, but through the energy- reconductor capacitor 28.
  • the reconducted AC signal is to be realized as a signal in a full anti-phase to the input AC signal having identical amplitude. In this case a double energy feeding is possible due to the anti-phase mode, while on the other hand AC will return through the energy-reconductor capacitor 28 only.
  • the energy-transfer circuit 50 of another particularly preferred embodiment is shown, enabling a two-directional, full bridge feed with high efficiency.
  • the switching means comprises reconductor switches 68, 70 by-passing the diodes of the lead-off half diode bridge in a controlled manner.
  • the control of the releaser switches 64, 66 and the reconductor switches 68, 70 are in full anti-phase.
  • the other circuit has the lower switch ON.
  • the central controller 16 comprises electronics similar to the above, although dimensioned to higher powers.
  • the central controller 16 is able to supply energy to more energy-storing units 10 and cells simultaneously, as the energy-transfer capacitors 24 of the individual energy-control units 12 can be connected in parallel with the feed conductor 22.
  • a control signal can be sent by the central controller 16 to a consumer or to a main charger to stop consuming or charging, once a previously set threshold is reached by the battery pack. In case of smaller consumers, the central controller 16 itself can cut the connection of the battery pack. This generally means introduction of additional switches, which decrease the efficiency of the system. It seems to be a better solution, if an intelligent consumer and a main charger is instructed by means of a control signal.
  • the central controller 16 can also measure the input and output current of the pack, as well as store the measurement data for the purpose of later analysis. In the course of the method according to the invention, therefore, information is gathered via the control circuit 40 about the charge status of the energy-storing units 10, the information being sent to the central controller 16, based on which information the charge level of the individual energy-storing units 10 is modified in a selective manner by means of the central controller 16.
  • Charge balancing and/or charging is at least in part realized from an alternating current energy source in such a way that an energy-transfer capacitor 24 enabling capacitive energy flow is provided between the individual energy-storing units 10 and the alternating current energy source . in a selectively controlled way via the central controller 16.
  • connection of the energy-transfer capacitor 24 is preferably realized by means of a switching means controlled via pulse-width modulation.
  • the individual control circuits 40 provide the filling factor to be realized by means of the switching means and required for the desired operation of the given energy-control unit 12.
  • the embodiments in Figs. 7 to 12 differ from those in Figs 1 to 6 in that
  • the energy-transfer capacitive element is an energy-transfer oscillator 24' enabling resonant energy flow between the alternating current energy source and the energy-storing unit 10,
  • the energy-reconductor capacitive element is an energy-reconductor oscillator 28'
  • the switching means are controlled by frequency modulation.
  • a process of selective energy transfer is provided from the overcharged cells towards low-voltage cells.
  • BMS battery management system
  • the system according to the invention may communicate or cooperate with intelligent consumers (e.g. motor controls, DC-DC and DC-AC converters) via standard CAN buses or in any other, more advanced way.
  • intelligent consumers e.g. motor controls, DC-DC and DC-AC converters
  • the system can integrate SOC (state of charge) or SOH (state of health) diagnostic systems, as well.
  • SOC state of charge
  • SOH state of health
  • the energy-control unit 12 according to the invention consumes approx. 5 mA in its active mode and approx. 10 ⁇ in its passive mode, which is significantly lower than the self-discharging current of an average battery cell.
  • the present invention is not limited to the preferred embodiments detailed hereabove, but additional modifications and variations are possible within the scope as defined by the claims.
  • the energy-transfer capacitors 24 or energy- transfer oscillators 24' can be connected to the alternating current energy source not only by means of a common feed conductor 22, but may also be individually connected via separate feed conductors 22, or in any other suitable manner.
  • the system according to the invention may promote charge balancing not only by way of selective additional charge but also by selective discharges; therefore it may be combined with any known passive balancing technologies.
  • the internal feed point 57 may be configured not only by means of the feed capacitor 56 described herein, but also by way of any other suitable connection arrangement.

Landscapes

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

Abstract

L'invention concerne d'une part un système d'équilibrage de la charge et/ou de charge d'unités de stockage d'énergie électrique (10) branchées en série. Le système selon l'invention comprend des unités de commande d'énergie (12) commandées de manière centralisée interconnectées entre les pôles des unités de stockage d'énergie (10) individuelles et les unités de commande d'énergie (12) sont dotées d'un circuit de commande et d'un circuit de transfert d'énergie. Les circuits de transmission d'énergie sont connectés à un conducteur d'alimentation (22) relié à la source d'énergie électrique alternative et comprennent un élément capacitif de transfert d'énergie (24) connecté au conducteur d'alimentation (22) et permettant la circulation d'énergie entre la source d'énergie électrique alternative et l'unité de stockage d'énergie (10) donnée ainsi qu'un moyen de commutation adapté pour réaliser un transfert d'énergie sélectif et actionné par le circuit de commande (40).
PCT/HU2011/000055 2010-06-14 2011-06-14 Système et procédé d'équilibrage de la charge et/ou de charge d'unités de stockage d'énergie électrique Ceased WO2011158051A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU1000311A HUP1000311A2 (en) 2010-06-14 2010-06-14 System and method for charge equalisation and/or charring of electrical energy storing units
HUP1000311 2010-06-14

Publications (1)

Publication Number Publication Date
WO2011158051A1 true WO2011158051A1 (fr) 2011-12-22

Family

ID=45347686

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU2011/000055 Ceased WO2011158051A1 (fr) 2010-06-14 2011-06-14 Système et procédé d'équilibrage de la charge et/ou de charge d'unités de stockage d'énergie électrique

Country Status (2)

Country Link
HU (1) HUP1000311A2 (fr)
WO (1) WO2011158051A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150015970A (ko) * 2013-08-02 2015-02-11 주식회사 엘지화학 신호라인이 고전압 또는 접지 단락 시 발생할 수 있는 문제를 방지할 수 있는 배터리 관리 시스템 및 그 제어 방법
EP2866354A1 (fr) * 2013-10-25 2015-04-29 VITO NV (Vlaamse Instelling voor Technologisch Onderzoek NV) Procédé et système de fourniture de puissance pulsée et données sur un bus
WO2017109226A1 (fr) * 2015-12-24 2017-06-29 Vito Nv Procédé, système et dispositif d'équilibrage de cellules de stockage d'énergie électrique individuelles
US10236695B2 (en) 2015-12-22 2019-03-19 Vito Nv Connectivity check between cells and wiring control electronics with only one switch
US10910847B2 (en) 2017-12-21 2021-02-02 Eric Paul Grasshoff Active cell balancing in batteries using switch mode dividers
US11876394B2 (en) 2017-12-21 2024-01-16 Eric Paul Grasshoff Active cell balancing in batteries using switch mode dividers

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5631534A (en) 1995-08-21 1997-05-20 Delco Electronics Corp. Bidirectional current pump for battery charge balancing
US5710504A (en) 1996-05-20 1998-01-20 The Board Of Trustees Of The University Of Illinois Switched capacitor system for automatic battery equalization
US5814970A (en) 1994-07-30 1998-09-29 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Apparatus for charge exchange among a plurality of series connected energy accumulators or energy converters
JPH1132443A (ja) * 1997-07-09 1999-02-02 Sanken Electric Co Ltd 充電装置
US5982143A (en) 1996-08-27 1999-11-09 The University Of Toledo Battery equalization circuit with ramp converter and selective outputs
US6404166B1 (en) 1997-01-21 2002-06-11 Metrixx Limited Signalling system
US20050024015A1 (en) * 2001-05-25 2005-02-03 John Houldsworth Method and apparatus for managing energy in plural energy storage units
US20050140335A1 (en) 2003-12-31 2005-06-30 Chun-Hsien Lee Equalizer for series of connected battery strings
WO2006100264A2 (fr) * 2005-03-24 2006-09-28 Siemens Vdo Automotive Ag Dispositif et procede pour l'equilibrage de charge de cellules individuelles disposees en rangee d'un accumulateur d'energie
DE102005041824A1 (de) * 2005-09-02 2007-03-08 Siemens Ag Vorrichtung und Verfahren zum Ladungsausgleich zwischen den Einzelzellen eines Doppelschichtkondensators, insbesondere in einem Mehrspannungs-Kraftfahrzeugbordnetz
DE102007045836A1 (de) * 2006-10-04 2008-04-10 Honda Motor Co., Ltd. Ladeeinrichtung
US20080185994A1 (en) 2006-05-31 2008-08-07 Aeroflex Plainview, Inc. Low-power battery system
US20090146610A1 (en) 2007-12-11 2009-06-11 Antonio Trigiani Battery management system
US20100052615A1 (en) 2006-11-10 2010-03-04 Ivan Loncarevic Battery management system
EP2302757A1 (fr) * 2009-09-24 2011-03-30 VITO NV (Vlaamse Instelling voor Technologisch Onderzoek NV) Procédé et système d'équilibrage de charge de cellules de stockage d'énergie éléctrique

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5814970A (en) 1994-07-30 1998-09-29 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Apparatus for charge exchange among a plurality of series connected energy accumulators or energy converters
US5631534A (en) 1995-08-21 1997-05-20 Delco Electronics Corp. Bidirectional current pump for battery charge balancing
US5710504A (en) 1996-05-20 1998-01-20 The Board Of Trustees Of The University Of Illinois Switched capacitor system for automatic battery equalization
US5982143A (en) 1996-08-27 1999-11-09 The University Of Toledo Battery equalization circuit with ramp converter and selective outputs
US6404166B1 (en) 1997-01-21 2002-06-11 Metrixx Limited Signalling system
JPH1132443A (ja) * 1997-07-09 1999-02-02 Sanken Electric Co Ltd 充電装置
US7615966B2 (en) 2001-05-25 2009-11-10 Texas Instruments Northern Virginia Incorporated Method and apparatus for managing energy in plural energy storage units
US20050024015A1 (en) * 2001-05-25 2005-02-03 John Houldsworth Method and apparatus for managing energy in plural energy storage units
US20050140335A1 (en) 2003-12-31 2005-06-30 Chun-Hsien Lee Equalizer for series of connected battery strings
WO2006100264A2 (fr) * 2005-03-24 2006-09-28 Siemens Vdo Automotive Ag Dispositif et procede pour l'equilibrage de charge de cellules individuelles disposees en rangee d'un accumulateur d'energie
DE102005041824A1 (de) * 2005-09-02 2007-03-08 Siemens Ag Vorrichtung und Verfahren zum Ladungsausgleich zwischen den Einzelzellen eines Doppelschichtkondensators, insbesondere in einem Mehrspannungs-Kraftfahrzeugbordnetz
US20080185994A1 (en) 2006-05-31 2008-08-07 Aeroflex Plainview, Inc. Low-power battery system
DE102007045836A1 (de) * 2006-10-04 2008-04-10 Honda Motor Co., Ltd. Ladeeinrichtung
US20100052615A1 (en) 2006-11-10 2010-03-04 Ivan Loncarevic Battery management system
US20090146610A1 (en) 2007-12-11 2009-06-11 Antonio Trigiani Battery management system
EP2302757A1 (fr) * 2009-09-24 2011-03-30 VITO NV (Vlaamse Instelling voor Technologisch Onderzoek NV) Procédé et système d'équilibrage de charge de cellules de stockage d'énergie éléctrique

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101583694B1 (ko) * 2013-08-02 2016-01-21 주식회사 엘지화학 신호라인이 고전압 또는 접지 단락 시 발생할 수 있는 문제를 방지할 수 있는 배터리 관리 시스템 및 그 제어 방법
KR20150015970A (ko) * 2013-08-02 2015-02-11 주식회사 엘지화학 신호라인이 고전압 또는 접지 단락 시 발생할 수 있는 문제를 방지할 수 있는 배터리 관리 시스템 및 그 제어 방법
US9768978B2 (en) 2013-10-25 2017-09-19 Vlaamse Instelling Voor Technologisch Onderzoek (Vito) Nv Method and system for providing pulsed power and data on a bus
WO2015059314A1 (fr) * 2013-10-25 2015-04-30 Vlaamse Instelling Voor Technologisch Onderzoek (Vito) Nv Procédé et système de fourniture de puissance pulsée et de données via un bus
CN105765873A (zh) * 2013-10-25 2016-07-13 威拓股份有限公司 用于在总线上提供脉冲电能和数据的方法和系统
EP2866354A1 (fr) * 2013-10-25 2015-04-29 VITO NV (Vlaamse Instelling voor Technologisch Onderzoek NV) Procédé et système de fourniture de puissance pulsée et données sur un bus
CN105765873B (zh) * 2013-10-25 2018-11-13 威拓股份有限公司 用于在总线上提供脉冲电能和数据的方法和系统
US10236695B2 (en) 2015-12-22 2019-03-19 Vito Nv Connectivity check between cells and wiring control electronics with only one switch
WO2017109226A1 (fr) * 2015-12-24 2017-06-29 Vito Nv Procédé, système et dispositif d'équilibrage de cellules de stockage d'énergie électrique individuelles
CN108432083A (zh) * 2015-12-24 2018-08-21 威拓股份有限公司 用于平衡个体电储能单元的方法、系统和设备
US10833513B2 (en) 2015-12-24 2020-11-10 Vito Nv Method, system and device for balancing individual electric energy storage cells
US10910847B2 (en) 2017-12-21 2021-02-02 Eric Paul Grasshoff Active cell balancing in batteries using switch mode dividers
US11876394B2 (en) 2017-12-21 2024-01-16 Eric Paul Grasshoff Active cell balancing in batteries using switch mode dividers

Also Published As

Publication number Publication date
HUP1000311A2 (en) 2012-08-28
HUP1000311D0 (en) 2010-08-30

Similar Documents

Publication Publication Date Title
DK2496436T3 (en) ELECTRIC VEHICLE CHARGING SYSTEM
CN103580214B (zh) 充电装置及其操作方法
US20150372279A1 (en) Active battery stack system and method
EP2590835B1 (fr) Chargeur pour accumulateur, pluralité de chargeurs couplés et procédé de mise en oeuvre
CN104221244B (zh) 通过切换电池的电池单元组块来平衡该电池的充电和放电水平的方法
KR101485127B1 (ko) 무선 제어 방식의 배터리 에너지 저장장치
EP4064516B1 (fr) Système de gestion de batterie
US20110234165A1 (en) Modular Charging System for Multi-Cell Series-Connected Battery Packs
US8269455B2 (en) Charge balancing system
US12195200B2 (en) Battery driven ground power unit with improved construction, operability, durability and maintenance
CN105375539B (zh) 动力电池自动均衡充电器
CN109786866B (zh) 一种即插即用电池模块及电池储能系统
CN107303825A (zh) 用于电动车辆的充电系统及用于对电动车辆充电的方法
JP7511768B2 (ja) 動力電池の充電方法、充電装置と充電システム
WO2011158051A1 (fr) Système et procédé d'équilibrage de la charge et/ou de charge d'unités de stockage d'énergie électrique
KR101769646B1 (ko) 배터리 장치 및 이를 포함하는 에너지 저장 시스템
EP3349327B1 (fr) Dispositif de gestion de batterie
US20170117723A1 (en) Battery fleet charging system
WO2012043589A1 (fr) Dispositif de blocs d'alimentation
US11784492B2 (en) Power supply system
US11728738B2 (en) Modular solid-state power converter and fault protector
CN222802563U (zh) 供电系统、交通工具
Oteafy et al. An active current-controlled battery pack balancing technique for online operation
US11557914B2 (en) Battery driven ground power unit with improved construction, operability, durability and maintenance
CN118054516A (zh) 一种融合双向逆变技术的电池管理系统及其控制方法

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: 11754724

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: 11754724

Country of ref document: EP

Kind code of ref document: A1