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EP2502321A1 - Équilibrage de tensions électriques d'unités d'accumulation électriques - Google Patents

Équilibrage de tensions électriques d'unités d'accumulation électriques

Info

Publication number
EP2502321A1
EP2502321A1 EP09756306A EP09756306A EP2502321A1 EP 2502321 A1 EP2502321 A1 EP 2502321A1 EP 09756306 A EP09756306 A EP 09756306A EP 09756306 A EP09756306 A EP 09756306A EP 2502321 A1 EP2502321 A1 EP 2502321A1
Authority
EP
European Patent Office
Prior art keywords
coil
memory
line
electrical
switch
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.)
Withdrawn
Application number
EP09756306A
Other languages
German (de)
English (en)
Inventor
Stefan Butzmann
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2502321A1 publication Critical patent/EP2502321A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the invention relates to a method for equalizing the electrical voltages of at least two electrical storage units connected in series.
  • the invention relates to a corresponding electrical memory.
  • cell balancing Matching is referred to as "cell balancing.”
  • the individual memory units are discharged by external wiring measures so that they all have the same electrical voltage after the adjustment.It is known to perform so-called resistance balancing for this purpose
  • Each memory unit is associated with an ohmic resistor or resistor combination via switches
  • the memory units are discharged by means of the resistors until the memory units have the electrical voltage It is disadvantageous that energy stored in the electrical memory is converted into heat by the resistors and Thus, a possibility is needed in which an equalization of the electrical voltages of several storage units with each other is achieved with low energy loss and a substantial improvement in the E ffi ciency of an entire electrical storage system is brought about.
  • Storage unit is loaded, optionally only the other storage unit is loaded. This means that in the case of more than two storage units, one of the other storage units, several other storage units or all other storage units can be loaded from the spool. In this way, the information stored in the storage units is allowed
  • a charging of the coil is understood to mean that the coil is energized.
  • Charging the other storage unit is to be understood as meaning that the coil is de-energized and the other storage unit by the electrical energy available in this way is loaded further. Under the store is therefore not a complete charge of the entire electrical storage to understand, but a transport of electrical charge for the purpose of equalizing the electrical voltages between the storage units and the coil.
  • the two storage units are adjacent to one another.
  • adjacent to one another is meant that the memory units are connected directly in series with one another, wherein a positive pole of one of the memory units is connected to a negative pole of the other memory unit directly via a line.
  • the coil is charged by means of the higher-voltage storage unit.
  • a respective memory cell in particular battery cell, is used as memory units.
  • the coil is charged by closing at least one switch. The use of the switch allows targeted charging at least one coil. In this way, the method can be selectively applied to individual storage units, without always having to include all storage units in the process.
  • the coil charges the other storage unit by opening the switch.
  • the charging of the coil is terminated by opening the switch and the coil, by means of re-induction, ie de-excitation, makes available the energy stored in it.
  • the coil outputs the stored electrical energy which is picked up by the other storage unit being charged.
  • the combination of closing the switch for charging the coil and opening the switch for charging the other storage unit is advantageous, since both the charging of the coil and the loading of the storage unit can be brought about in succession in a simple manner by only two switching positions of the switch.
  • the other storage unit is charged by the coil via at least one diode. This is particularly advantageous if it exploits the effect that a current flow that flows into the coil during charging reverses and flows out of the coil to charge the storage unit in the reverse manner.
  • the coil is automatically connected to the memory unit to be loaded, the loading of the other memory unit being dependent on whether the coil is being charged or not being charged and whether the associated switch is actuated.
  • a plurality of charged storage units and a plurality of switches are used and that the charged coil charges by opening at least one corresponding switch, at least one memory unit associated with the switch.
  • the assignment of switches to individual memory units makes it possible, in a simple circuit engineering manner, starting from a memory unit, to match them with one or more other memory units. This can take place in particular in the form of a chain so that two memory units, one at the beginning and one at the end of the chain, can load only one adjacent memory unit via a coil and all further memory units can load either one or two adjacent memory units.
  • the invention further relates to an electrical memory having at least two series-connected electrical storage units and an electrical matching circuit, in particular for carrying out the method described above, wherein the matching circuit has at least one coil for charging by the storage unit and for loading the other storage units, wherein selectable only the other storage unit is loadable.
  • the matching circuit has at least one diode and / or at least one switch.
  • the switch is designed as a semiconductor switch, in particular transistor, thyristor or the like.
  • semiconductor elements make very simple automation possible.
  • electronic components such as integrated circuits.
  • the device according to the invention can be designed to save space and manufactured in an economical manner in this way.
  • each of the storage units is a storage cell, in particular a battery cell.
  • FIG. 2 shows the memory with the matching circuit from FIG. 1 in a first method step
  • FIG. 4 shows the memory with the matching circuit from FIG. 1 in a further, second method step.
  • FIG. 1 shows a detail of an electrical memory 201 with several memory units 202 connected in series.
  • the individual memory units 202 are embodied as memory cells 203.
  • the electric memory 201 is formed as a battery 204, whereby the memory cells 203 are formed as battery cells 205.
  • a first memory unit 206 is connected via a negative pole 206 'to a line 207, which leads to a node 208, which is connected by means of a line 209 to another node 210.
  • the node 210 is connected to the memory unit 212 by means of a line 21 1.
  • the second memory unit 212 has a positive pole 212 'and a negative pole 212 ", the positive pole 212' is connected to the line 21 1.
  • the negative pole 212" is connected via a line 213 with a node 214 to a line 215 that leads to a further node 216 leads.
  • a further line 217 extends to a third memory unit 218.
  • the memory unit 218 in turn has a positive pole 218 'and a negative pole 218 ", wherein the positive pole 218' is connected to the line 217.
  • Starting from the negative pole 218" runs a Line 219 to a node 220.
  • the first memory unit 206 also has a positive pole 206 ', which is connected via a line 221 to a node 222.
  • Lines 223 is indicated.
  • an equalization circuit 224 which, by way of a line 225, communicates with the node 222, with the line 226 with the node 208, with the line 227 with the node 210, with the line 228 with the node 214 the line 229 to the node 216 and the line 230 to the node 220 is electrically connected.
  • the matching circuit 224 is shown in fragmentary form in FIG. 1 and has coils 231, diodes 232 and switches 233.
  • the equalization circuit 224 is formed such that each memory unit 202 is associated with a coil 231. Furthermore, two switches 233 and two diodes 232 are assigned to it.
  • the line 225 terminates in a node 234 which extends via a line 235 to a first switch 236.
  • a line 237 extends to a node 238, which is connected to a first coil 239.
  • the coil 239 is connected to a further node 240, which is connected via a line 241 to a second switch 242, which in turn is connected to the line 226.
  • another line 243 extends to a first diode 244 which is connected on its other side to the dashed line 245, which indicates that the matching circuit 224 can be logically continued at this point.
  • the direction of flow of the diode 244 is aligned from the line 243 to the line 245.
  • a line 246 extends to a second diode 247, which via a line 248 with a node
  • the diode 247 is aligned in such a way that its direction of flow extends from the line 248 to the line 246.
  • the line 227 terminates in a node 254 which extends via a line 255 to a third switch 256. Starting from the switch 256, a line 257 extends to a node 258, which is connected to a second coil 259.
  • the coil 259 is connected to another node 260, which is connected via a line 241 to a fourth switch 262, which in turn is connected to the line 253 to the node 249.
  • a further line 263 extends to a third diode 264, which is connected on its other side to a line 265 which extends to the node 234.
  • the direction of flow of the diode 264 is from the line 263 to the line 265th aligned.
  • a line 266 extends to a fourth diode 267, which is connected via a line 268 to a node 269, which leads to the line 230.
  • the diode 267 is aligned in such a way that its direction of flow extends from the line 268 to the line 266.
  • the line 229 terminates at a node 274, which via a line 275 to a fifth
  • Switch 276 runs. Starting from the switch 276, a line 277 extends to a node 278, which is connected to a third coil 279. The coil 279 is connected to a further node 280, which is connected via a line 281 to a sixth switch 282, which in turn is connected to the line 273, which leads to the node 269. Starting from the node 280, a further line 283 extends to a fifth diode 284, which is connected on its other side to a line 285 which extends to the node 254. The flow direction of the diode 284 is aligned from the line 283 to the line 285.
  • a line 286 extends to a sixth diode 287, which can be continued via a dashed line 288.
  • the diode 287 is aligned in such a way that its direction of flow extends from the line 288 to the line 286.
  • For the continuation of the matching circuit 224 is additionally taken into account a line which is connected to the line 226 and a line which is connected to the node 274.
  • the matching circuit 224 is assigned to a control unit, not shown, and the switches 233 are formed as semiconductor switches 291 in the form of transistors 292.
  • FIG. 2 shows the electrical memory 201 from FIG. 1 and the matching circuit
  • the memory unit 212 has a higher voltage than the other memory units 206 and / or 218; moreover, the switch 256 and the switch 262 are closed for a first method step, so that a circuit 295 is formed.
  • the circuit 245 is shown in bold in FIG. 2 and provided with directional arrows 296.
  • the circuit 295 starts with the second memory unit 212 and extends from the positive pole 212 'via the lines 21 1, 227, 255 and 257 to the second coil 295.
  • the second coil 259 is energized and the circuit 295 continues to proceed from the second coil 259 the lines 261, 253, 228 and 213 to the negative pole 1 12 ".
  • FIG. 3 shows the electrical memory 201 and the matching circuit 224 from FIG. 1 with all their features.
  • the switch 256 is closed and the second coil 259 is energized for a second method step. Since the coil 259 is no longer excited, there is a circuit 297 over which the second coil 259 can de-energize by charging the electrical storage unit 206.
  • the circuit 297 is shown in bold in FIG. 3 and provided with directional arrows 296.
  • the circuit 297 proceeds from the second coil 259 via the line 263 to the third diode 264 and from the third diode 264 via the lines 265, 225 and 221 to the positive pole 206 'of the first memory unit 206.
  • the circuit 297 closes via the lines 207, 209, 227, 256 and 258 back to the second coil 259th
  • FIG. 4 shows the electrical memory 201 and the matching circuit 224 of FIG. 1 with all their features.
  • the fourth switch 262 is closed and the second coil 259 is energized for a further, second method step. Due to the de-energizing of the second coil 259, a circuit 298 results which allows the coil 259 to be deenergized, in which the coil 259 charges the third memory unit 218.
  • the circuit 298 is shown in bold in FIG. 4 and provided with directional arrows 296. Thus, the circuit 298 proceeds from the second coil
  • FIGS. 2 to 4 describe the possibility of loading either the first memory unit 239 or the third memory unit 279 with electrical charge from the second memory unit 259. This process is very energy efficient, since no electrical consumers need to be used, but charges are transferred within the storage units 202. Furthermore, it is conceivable that both switches 256 and 262 remain closed and, after a saturation of the coil 259, simultaneously charge the two storage units 206 and 218 adjacent to the storage unit 212. To support this approach additional switches in the lines 227 and 228 are conceivable.

Landscapes

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

Abstract

L'invention concerne un procédé d'équilibrage des tensions électriques d'au moins deux unités d'accumulation électriques (202, 206, 212, 218) montées en série. Selon le procédé, une unité d'accumulation électrique (202, 212) charge une bobine (231, 259) et l'énergie de la bobine chargée (231, 259) est employée pour charger l'autre unité d'accumulation (202, 206, 218), seule l'autre unité d'accumulation (202, 206, 218) étant chargée sélectivement. L'invention concerne également un accumulateur électrique correspondant (201).
EP09756306A 2009-11-19 2009-11-19 Équilibrage de tensions électriques d'unités d'accumulation électriques Withdrawn EP2502321A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2009/065475 WO2011060821A1 (fr) 2009-11-19 2009-11-19 Équilibrage de tensions électriques d'unités d'accumulation électriques

Publications (1)

Publication Number Publication Date
EP2502321A1 true EP2502321A1 (fr) 2012-09-26

Family

ID=43858165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09756306A Withdrawn EP2502321A1 (fr) 2009-11-19 2009-11-19 Équilibrage de tensions électriques d'unités d'accumulation électriques

Country Status (6)

Country Link
US (1) US20130009601A1 (fr)
EP (1) EP2502321A1 (fr)
JP (1) JP5645950B2 (fr)
KR (1) KR20120117742A (fr)
CN (1) CN102612793A (fr)
WO (1) WO2011060821A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103603768B (zh) * 2013-11-06 2017-02-08 北京天诚同创电气有限公司 大功率风力发电机组的变桨控制系统及充电管理控制方法
JP2016154423A (ja) * 2015-02-20 2016-08-25 有限会社アイ・アール・ティー 電圧バランス装置
IL307401A (en) 2015-06-19 2023-12-01 Immatics Biotechnologies Gmbh Innovative peptides and a combination of peptides for use in immunotherapy and methods for creating scaffolds for use against pancreatic cancer and other types of cancer.
GB201510771D0 (en) 2015-06-19 2015-08-05 Immatics Biotechnologies Gmbh Novel peptides and combination of peptides for use in immunotherapy and methods for generating scaffolds for the use against pancreatic cancer

Family Cites Families (11)

* 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
JPH10257683A (ja) * 1997-03-07 1998-09-25 Japan Storage Battery Co Ltd 組電池の充放電回路
US6064178A (en) * 1998-05-07 2000-05-16 Ford Motor Company Battery charge balancing system having parallel switched energy storage elements
US6150795A (en) * 1999-11-05 2000-11-21 Power Designers, Llc Modular battery charge equalizers and method of control
TWI228340B (en) * 2003-08-08 2005-02-21 Ind Tech Res Inst Voltage balance circuit for rechargeable batteries
JP2006296179A (ja) * 2005-03-16 2006-10-26 Macnica Inc キャパシタの蓄電装置、及びその充放電方法
CN100524918C (zh) * 2005-07-28 2009-08-05 财团法人工业技术研究院 能量转换电路
CN101577439B (zh) * 2005-07-28 2011-04-27 财团法人工业技术研究院 晶格式电池电位平衡器
CN101242106B (zh) * 2005-07-28 2011-04-13 财团法人工业技术研究院 晶格式电池电位平衡器
US7612530B2 (en) * 2006-11-21 2009-11-03 Industrial Technology Research Institute Bridge battery voltage equalizer
US8536824B2 (en) * 2008-04-18 2013-09-17 Mi-Jack Canada, Inc. Lossless dynamic battery equalizer system and method

Non-Patent Citations (1)

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Title
See references of WO2011060821A1 *

Also Published As

Publication number Publication date
JP2013511944A (ja) 2013-04-04
WO2011060821A1 (fr) 2011-05-26
KR20120117742A (ko) 2012-10-24
CN102612793A (zh) 2012-07-25
US20130009601A1 (en) 2013-01-10
JP5645950B2 (ja) 2014-12-24

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