基于Prony算法的感应电动机转子故障检测方法  

A Method for Detecting Rotor Faults in Induction Motors Based on Prony Algorithm

作　　者：黄楠[1] 

机构地区：[1]海军工程大学电气与与信息工程学院,武汉430033

出　　处：《船海工程》2011年第1期104-107,共4页Ship & Ocean Engineering

摘　　要：分析Prony算法及其高分辨率谱估计的特点,在此基础上,提出一种基于Prony算法的感应电动机转子故障检测方法,仿真研究结果表明,在短数据情况下,相对FFT分析技术而言,该方法频率分辨率更高,故障检测更为准确,且计算量小,有利于电机故障实时状态监测。实验证明,将该方法应用于感应电机转子故障检测,可准确检测出转子故障时在定子电流中的故障特征成分。The high-resolution spectral characteristics of Prony algorithm were analyzed,and a method for detecting rotor faults in induction motors based on the Prony algorithm was presented.Compared with FFT analysis method,it is higher in resolution of frequency,more accurate in fault detection and less in computational complexity,which is useful in real-time monitoring.Experimental results showed that the fault characteristic components can be obtained accurately through the method presented even with small samples when the occurrence of rotor faults in induction motors.

关 键 词：PRONY算法 感应电机 故障检测 

分 类 号：TN911.4[电子电信—通信与信息系统] TM711[电子电信—信息与通信工程]