补偿电容器组谐波异常放大的测试及仿真分析  

Measurement and simulation analysis of the abnormal harmonics amplification caused by compensation capacitors

作　　者：李敏[1] 汤霖[1] 

机构地区：[1]武汉高压研究院,湖北武汉430074

出　　处：《供用电》2008年第2期54-56,共3页Distribution & Utilization

摘　　要：对某污水处理厂供电系统电动机负荷异常过电流的测试分析表明,主要原因是由并补电容器组谐波异常放大引起的。介绍了测试中对谐波电流含有率的测量以及采用ETAP软件对系统进行谐波电流含有率计算和对谐波阻抗幅值进行的扫描计算。分析得到谐波电流放大的主要原因是电抗器参数偏小所致。针对原因采取了治理措施,取得了良好的治理效果。The measurement analysis of abnormal over-current of electric motors in a sewage treatment factory indicates that the abnormal harmonics amplification is caused by parallel compensation capacitors. By measuring the containing rate of harmonics and calculating with ETAP software, as well as scan calculating on harmonics resistance magnitude, the main cause of harmonics current amplification is found that the reactor pa rameter is lower than normal. Countermeasures have been taken and the result is ideal.

关 键 词：谐波放大 谐波仿真计算 谐波阻抗 

分 类 号：TM714.3[电气工程—电力系统及自动化] TM743