基于Park矢量的变频电源供电的笼型异步电机转子断条故障诊断方法  

Park Vector-based Method for Diagnosing Rotor Broken-bar Fault of Cage Motor Supplied by Variable-frequency Power

作　　者：张建文[1] 朱宁辉[1] 姚奇[1] 杨丽[1] 鲁庆[1] 张振明 

机构地区：[1]中国矿业大学信电学院,221008 [2]宁夏煤业集团羊场湾煤矿,750000

出　　处：《电气自动化》2007年第4期56-58,共3页Electrical Automation

基　　金：中国矿业大学科研基金(项目编号:OC4499)

摘　　要：基于工频电源驱动时扩展 Park 矢量方法诊断笼型异步电机转子断条故障的有效性,研究了在变频电源供电情况下该方法的诊断有效性。对断条故障电机变频电流进行了实测、分析和对比,结果表明:当采用变频电源供电时,传统的单相电流频谱分析方法无法正确诊断转子断条故障,而扩展 Park 矢量方法仍然具有良好的诊断准确性和适用性。On the basis of effectiveness of extended Park＇s vector approach for diagnosing rotor broken-bar fault of cage motor supplied by power-frequency power, its effectiveness of diagnosing the same sort of fault is studied when cage motor is driven by variable-frequency power. Variable-frequency current signals of fault motor are practically measured, analyzed and compared. Research results show that the traditional single-phase current spectrum is not capable of correctly diagnosing rotor broken-bar fault, but extended Park＇s vector approach is still effective and applicable.

关 键 词：PARK矢量 故障诊断 笼型异步电机 转子断条 变频电源 

分 类 号：TM307.1[电气工程—电机]