断路器选相分合闸技术在扎鲁特换流站中应用实践研究

Practice Ｒesearch on Controlled Switching Technology for Circuit － breakers in Zhalute Converter Station

摘要:

论述了断路器选相分合闸技术原理，总结了采用此原理的 PSD 装置在扎鲁特换流站实践应用。通过对比分 析不同型号交流滤波器的三相合位产生时间的离散性，推论出不同型号的小组交流滤波器对选相合闸装置过零点的 影响，最后通过录波图验证这种推论的正确性，为其他工程采用该装置提供应用参考。

Abstract:

The theory of controlled switching technology is discussed and the practice results of PSD in Zhalute converter station are summarized． By analyzing and comparing the discreteness of closing time of circuit － breakers，the influence on zero crossing of phase voltage in different AC filters ( ACF) is deduced． Finally，the correctness of deduction is verified by waveform， which can provide application reference for other projects with the proposed device．