摘要:对某钢厂供用电网35kV线路发生的一次投入滤波装置 事故进行了工程理论 分析,结果表明事故扩散、恶化的原因是由于滤波装置与系统其它部分构成的回路中发生了 9次谐波并联谐振,同时指出了该系统的滤波装置在设计中存在不合理之处. 关键词:供用电网;滤波装置;谐波;并联谐振
Analysis on harmonic and resonance of steelworks supply-network
DUAN Jian-dong,HANG Nai-shan,YANG Liu-lin (Department of Electrical Engineering,Guangxi University,Nanning 530004,China)
Abstract:This paper analyses an harmonic resonance accident which occur red in a steelworks supply-network when some filters were put into the system.The anal y sis indicates that the accident was due to the parallel resonance caused by the 9 order harmonic in the network ,which composed of a set of filters and the lines of the system.And the analysis also points out that the design of the filters is imperfect. Key words:supply-network;filter;harmonic;parallel resonance
作者简介:段建东(1973-),男,湖南武冈人,广西大学助教,硕士. 段建东(广西大学 电气工程学院,广西 南宁 530004) 杭乃善(广西大学 电气工程学院,广西 南宁 530004) 杨柳林(广西大学 电气工程学院,广西 南宁 530004)
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