电测与仪表Issue(11)：76-80,5.
基于复调制滤波与ESPRIT的异步电动机转子断条故障检测新方法
A Detection Method for Broken Rotor Bar Fault in Induction Motors Based on Complex Modulation and ESPRIT
摘要
Abstract
Broken rotor bar fault is difficult to detect because of the fact that the power frequency component is so close to the side frequency component and the side frequency component is too weak, which is particularly serious in condition of low slip. In this case, even ESPRIT is ineffective. Therefore, a complex modulation technique is intro-duced to remove the power frequency component by shifting it to 0 Hz in frequency domain. Meanwhile, Hilbert trans-form is adoptedto solve the negative frequency problem by its one-sided spectrum characteristic. Finally, a new BRB detection method is presented by combining complex modulation techniques and ESPRIT seamlessly. Simulating re-sults on an induction motor verify the effectness.关键词
复调制/ESPRIT/转子断条/低转差率Key words
complex modulation/ESPRIT/BRB/low slip分类
信息技术与安全科学引用本文复制引用
许伯强,白旭..基于复调制滤波与ESPRIT的异步电动机转子断条故障检测新方法[J].电测与仪表,2014,(11):76-80,5.基金项目
国家自然科学基金资助项目（51277077) （）
