基于电流检测的STATCOM变流器开路故障诊断  

Open Circuit Fault Diagnosis of STATCOM Inverter Based on Current Detection

作　　者：陈雷[1] 唐轶[1] 

机构地区：[1]中国矿业大学信电学院,江苏徐州221008

出　　处：《电力电容器与无功补偿》2011年第6期31-34,共4页Power Capacitor & Reactive Power Compensation

摘　　要：变流电路的安全可靠是STATCOM正常运行的必要保证。以STATCOM变流电路开路故障为研究对象,通过MATLAB仿真得出数据,对三相输出电流进行傅里叶分析,提出利用三相电流直流和基波含量提取故障特征。分析表明,利用此方法能准确地进行故障类型的判别及故障管的定位。Safety and reliability of inverter circuit is necessary assurance for the normal operation of STATCOM.In this paper,the open circuit fault of STATACOM inverter circuit is taken as a research object,the data is obtained by MATLAB simulation,the Fourier analysis of three-phase output current is made and a method to collect fault characteristic by the use of DC and fundamental harmonic contents of three phase current is proposed.It is shown by the analysis that use of the method can correctly judge type of fault and locate the faulty.

关 键 词：静止同步补偿器 变流电路 开路故障 诊断定位 

分 类 号：TM46[电气工程—电器]