As the core component of flexible HVDC transmission converter valves,DC-link capacitors have not yet been tested and verified in valve section operating conditions.Through research on the operation of the converter valve components under current laboratory conditions,it has been determined that the circuit topology of towing operation mode between the test valve section and the accompanying valve section can meet the requirements of constructing the verification test circuit.Through simulation analysis and system testing,it is proved that at least 5 sub modular need to be connected in series for each valve section of the circuit to verify the normal operation,while meeting the requirements of economy and practicality.Considering that the test circuit needs to conduct operational tests on capacitors of different models and specifications,the stacked busbar adopts a special design to facilitate parameter measurement and capacitor replacement.
关键词
柔性直流输电/直流电容器/工况验证试验回路/子模块/仿真/输出电压波形/阀段间电流波形
Key words
flexible HVDC transmission/DC-link capacitor/operating conditions verification test circuit/sub modular/simulation/waveform of output voltage/waveform of current between valve sections
维普
万方数据