The invention discloses an energy balance control device, a battery system and an energy balance control method of the battery system. The device comprises a selection unit, a conversion unit and a transformer, wherein the selection unit is used for gating one path of battery cell needing energy balance control in a battery cell group; the conversion unit is used for realizing a first energy conversion process between the gated battery cell and a storage battery; and the transformer is used for realizing a second energy conversion process between the gated battery cell and the storage battery.According to the scheme, the problem that the number of secondary windings of the transformer needs to be increased along with the increase of battery cells in the battery equalization technology, and consequently the implementation difficulty of the transformer is high can be solved, and the effect that the implementation difficulty of the transformer is reduced due to the fact that the number of the secondary windings of the transformer does not need to be increased along with the increase of the battery cells is achieved.
本发明公开了一种能量均衡控制装置、电池系统及其能量均衡控制方法,该装置包括:选择单元,用于选通电芯组中需要进行能量均衡控制的一路电芯;变换单元,用于实现选通的一路电芯与蓄电池之间的第一能量变换过程;变压器,用于实现选通的一路电芯与蓄电池之间的第二能量变换过程。本发明的方案,可以解决电池均衡技术中变压器的副边绕组需要随着电芯的增多而增多,使得变压器的实现难度较大的问题,达到避免变压器的副边绕组需要随着电芯的增多而增多,使得变压器的实现难度降低的效果。
Energy balance control device, battery system and energy balance control method thereof
一种能量均衡控制装置、电池系统及其能量均衡控制方法
2020-05-26
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / 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 , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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