有源滤波器的保护及运行过程研究

The Research on Protection and Operation of Active Filter

串联型有源滤波器的主电路、控制电路出现故障或负载发生短路等情况下如何正确保护整个系统将是滤波装置能否正常运行的一个关键问题。文中叙述了三种保护方案,给出了基于基波磁通补偿的串联混合型有源滤波器的主电路及其电气控制图,结合保护具体讨论了该系统有源和无源部分的投入切除问题。

How to protect the whole system when the main circuit, controlling circuit of series active filter is failure, over- load or short circuit is a key problem for whether the filter can working normally or not. This article researches three protection plan, gives out the of main circuit and its electric control drawing of series combined active filter based on fundamental harmonic field compensate.