基于阻抗的匝间故障早期诊断系统设计与实现  

The Design and Implementation of Early Inter-Turn Fault Diagnostic System Design Based on Impedance

作　　者：蔡亮[1] 

机构地区：[1]贵阳职业技术学院机电系,贵阳550002

出　　处：《电子器件》2016年第2期425-431,共7页Chinese Journal of Electron Devices

摘　　要：提出了一种使用输入阻抗来诊断无刷直流电动机BLDC(Brushless DC motors)定子绕组匝间故障ITF(Inter-Turn Fault)的算法,并设计了相应的故障检测系统进行了实现。该系统的优势在于具有早期检测能力以及适用于各种速度范围检测。提出的故障检测技术通过使用输入电压和输入电流来计算输入阻抗,并将其与数据库中的数值比较。相比传统的方法,由于不需要快速傅里叶变换(FFT),因此提出的算法更加迅速且简单。实验测试结果表明提出的检测方法在各种转速条件下均具有较高的精确度。A diagnosis of Brushless DC motor is presented using the input impedance（brushless DC,motors,BLDC） in stator winding fault（inter-turn fault,ITF）algorithm,and the design of the corresponding fault detection system is implemented. This system has the advantage of having early detection ability and is suitable for various speed range detection. The fault detection technique is proposed by using the input voltage and the input current to calculate the input impedance,and the numerical comparison with the database. Compared with the traditional method,it does not need fast Fourier transform（FFT）,so the proposed algorithm is more rapid and simple. Finally,simulation ex-periment proved that the detection method has higher speed in all conditions of accuracy.

关 键 词：无刷直流电动机 早期故障监测 输入阻抗 定子绕组 

分 类 号：TM33[电气工程—电机]