电机与控制应用2012，Vol.39Issue(1)：39-42,51,5.
变频器驱动的笼型异步电机转子断条故障诊断新方法
New Method of Broken-Rotor-Bar Fault Diagnosis in Squirrel Cage Asynchronous Motor Drived by Inverter
摘要
Abstract
Relax algorithms in frequency domain not only can withdraw effectively some frequency component in the steady signal, but also reject industrial frequency component and highlight the fault characteristic in fault diagnosis of asynchronous squirrel cage induction motors drived by industrial frequency' s power. However, with regard to motor in dynamic process of using variational frequency to adjust the speed, Input voltage' s frequency along with time variation. In view of motor of using variational frequency to adjust the speed in acceleration. A new method based on fractional Fourier transform and Relax algorithms in frequency domain withdrawing fault was presented. First through fractional Fourier transform transformation, it change the initial and principal current component to be constant, and then Relax method extract and disallowance this component, overhangcharacter of breaks. The simulation results proved this method effective.关键词
分数阶Fourier/频域Relax/异步电机/故障诊断/变频器Key words
fractional fourier/ Relax algorithms in frequency domain/ asynchronous motor/ fault diagnosis/ inverter分类
信息技术与安全科学引用本文复制引用
谭勇,刘振兴..变频器驱动的笼型异步电机转子断条故障诊断新方法[J].电机与控制应用,2012,39(1):39-42,51,5.基金项目
国家自然基金研究项目(变频调速异步电机系统动态调速过程中的故障诊断研究(60874109)) （变频调速异步电机系统动态调速过程中的故障诊断研究(60874109）
