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Control method for redundancy use in the event of failure of multiphase power converter with distributed energy storage
Control method for redundancy use in the event of failure of multiphase power converter with distributed energy storage
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机译:具有分布式储能的多相功率变换器发生故障时冗余使用的控制方法
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摘要
The invention relates to a method for controlling a power converter having at least two phase modules, which each have an upper and a lower valve branch, each having at least three series-connected two-pole subsystems, in the event of failure of at least one subsystem of a valve branch of a phase module. According to the invention, the valve branch (T1, T6) with the failed subsystem (10) is determined, and in each case a subsystem (10) of a valve branch (T1, T6), which corresponds to the faulty valve branch (T1, T6), of any fault-free phase module (100) is driven such that its terminal voltages (UX21) are in each case zero. A polyphase power converter with distributed energy stores (9) is therefore operated with redundancy.
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