The design method of main circuit parameters,related control parameters and control strategy are systemati-cally studied in order to promote practical application of 35 kV high-voltage large-capacity battery energy storage system(BESS).A simulation model of the 35 kV/10 MW/10 MWh system is built in MATLAB/Simulink to verify the correct-ness of the proposed design method and control strategy.The research results show that the 35 kV high-voltage BESS has large unit capacity and fast power response and can implement active state-of-charge balance and fault redundancy con-trol of internal battery clusters.Its system efficiency and reliability are higher,which can adapt to the large-scale development of renewable energy in the future.
关键词
电池储能系统/单机大容量/高压直挂储能变换器/参数设计/控制策略/荷电状态均衡
Key words
battery energy storage system/large unit capacity/transformerless high-voltage energy storage converter/parameters design/control strategy/state of charge balance
万方数据