【摘要】 基于快速傅里叶变换(FFT)的定子电流信号频谱分析方法,被广泛应用于笼型异步电动机转子断条故障的在线检测,其中自适应滤波、派克矢量变换、希尔伯特变换以及瞬时功率法是典型且成功的。在回顾这些方法的同时,分析了它们的优缺点,并在此基础上,指出了今后的发展趋势及工作重点。对该领域进一步的研究工作具有指导意义。更多还原

【Abstract】 Rotor bar breaking is one of the frequent faults of the squirrel cage asynchronous motors.The spectrum analysis of the stator current,which is based on Fast Fourier Transform,is widely utilized to detect the fault on-1ine.The adaptive filter approach,the Park transform approach,the Hilbert transform approach and the instantaneous power approach are usually adopted.This paper briefly reviews the four approaches,analyzes their advantages and deficiencies.Based on that,this paper also discusses the researching pivots in the future.更多还原