基于谐波阻抗的感应电机系统无传感器监测方法研究  

A Method of Sensorless Condition Monitoring of Induction Motor System Based on Harmonic Impedance

作　　者：孟庆丰[1] 何正嘉[1] 

机构地区：[1]西安交通大学机械工程学院,西安710049

出　　处：《振动．测试与诊断》2001年第2期90-94,共5页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金资助项目 (编号 :5 0 0 75 0 6 7)

摘　　要：从信号处理的观点出发 ,结合阻抗理论和谐波分析 ,提出了感应电机系统无传感器监测的谐波阻抗和谐波导纳法 ,给出了获取和计算谐波阻抗和谐波导纳的方法。在鼠笼式三相感应电机上用提出的方法进行了转子失衡的实验研究。实验结果证实了方法的可行性 。Based on the impedance theory and harmonic analysis, this paper presents a harmonic impedance/admittance signal processing method for sensorless condition monitoring of induction motor systems. An algorithm to compute the harmonic impedance and admittance is developed by means of digital signal processing. A rotor unbalance experiment is carried out on a three phase squirrel cage induction motor. The result shows that the proposed method is effective and has advantage over the traditional method in ability against external disturbance.

关 键 词：数字信号处理 感应电机 谐波阻抗 导纳 无传感器监测 转子失衡监测 

分 类 号：TM346[电气工程—电机]