Method and system for configuring an AC battery fo-百检网

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Method and system for configuring an AC battery fo

所有人：Dr. Ing. h.c.F. Porsche Aktiengesellschaft 年：2022,

语种：英语

公开国家：GB 国家：英国

专利申请号：GB2115870-4 专利申请日期：2021-11-04

公开(公告)号：GB-2602710-A 公开日期：2022-07-13

优先权号：DE1020201291322020-11-05

分类号：H02J-7/02 国际主分类号：H02J-7/02 国际分类号：H02J-7/02

摘要：Abstract Title: Method and system for configuring an AC battery for AC chargingAn AC battery 110 comprises a central controller and three strings 111, 112, 113 each having at least two battery modules. Each battery module has at least one energy store and at least two power semiconductor switches, which connect the respective battery module in series or in parallel or in bypass to another battery module. The three strings 111, 112, 113 provide a respective phase with a phase voltage level 102. The AC battery 110 is charged by a charging source 220 via a charging circuit, which provides alternating current at a charging voltage level 221 and has at least one switch 206 and a filter 230. The state of charge of the energy stores is monitored by the central controller during charging, and the instantaneous value of the phase voltage level 102 is adjusted to a time profile of the instantaneous value of the charging voltage level 221 according to a continued evaluation of the states of charge of the energy stores and by a dynamic driving of the power semiconductor switches. The AC battery 110 is configured by interconnection of the strings 111, 112, 113 with one another and with respect to a reference potential 101 according to a comparison between the phase voltage level 102 and the charging voltage level 221 in such a way that an output voltage level of the AC battery is greater than or equal to the charging voltage level 221. The battery can be adjusted to a particular charging voltage level 221 even as it ages and its voltage decreases.