中国电机工程学报2013，Vol.33Issue(3)：140-147,前插17,9.
基于高频率分辨力谱估计技术与优化算法的异步电动机转子故障检测新方法
A Detection Method for Rotor Fault in Induction Motors Based on High Frequency Resolution Spectrum Estimation Technique and Optimization Algorithm
摘要
Abstract
This paper presented a detection method for rotor fault in induction motors, which was based on high frequency resolution spectrum estimation technique and optimization algorithm. Multiple Signal Classification (MUSIC) and Estimation of Signal Parameters via Rotational Invariance Technique (ESPRIT), which were the typical spectrum estimation techniques with high frequency resolution, had been tested with simulated stator current signal of an induction motor with rotor fault. It shows that even with a short-time measurement data, MUSIC and ESPRIT are both capable of correctly identifying the frequencies of the rotor fault characteristic components but with a low accuracy on the amplitudes and initial phases of those components. Typical optimization algorithms, Simulated Annealing Algorithm (SAA) and Pattern Search Algorithm (PSA) are then used to determine ' their amplitudes and initial phases and shows satisfactory results. In addition, the overall performance comparison between MUSIC and ESPRIT, along with that between SAA and PSA, had been made to pick out the superior, ESPRIT and PSA, for detecting rotor fault in induction motors. Finally, experiments on an induction motor were conducted to demonstrate the effectiveness of the presented method in detecting rotor fault with short-time measurement data. It proves that the proposed method is a promising choice for rotor fault detection in induction motors operating with small slip and fluctuant load.关键词
异步电动机/转子故障检测/高频率分辨力谱估计技术/优化算法/多重信号分类/旋转不变信号参数估计技术/模拟退火算法/模式搜索算法Key words
induction motor/ rotor fault detection/ high frequency resolution spectrum estimation technique/ optimization algorithm/ multiple signal classification/ estimation of signal parameters via rotational invariance technique/ simulated annealing algorithm/ pa分类
信息技术与安全科学引用本文复制引用
许伯强,孙丽玲,李和明..基于高频率分辨力谱估计技术与优化算法的异步电动机转子故障检测新方法[J].中国电机工程学报,2013,33(3):140-147,前插17,9.基金项目
国家自然科学基金项目(50407016) （50407016）
中央高校基本科研业务费专项基金(11QG55). （11QG55）
