摘要
该文采用磁导分析的方法,通过对定转子绕组中单元绕组的分析,研究气隙磁场。考虑气隙高次谐波的影响,从而导出定转子三相绕组的参数计算,为转子故障时的电流分析计算,提供理论基础和计算方法。该文分析了转子导条断条和端环开裂故障时的物理模型,给出了电机的定转子绕组的参数计算表达式,从而导出转子故障时的电流和频谱分析。该文对电机在dqn任意速坐标系中,电机在故障时定子电流的轨迹,为电机的故障诊断和在线监测提出了一种新的方法,较以往的电流监测方法更有利于克服边频带的影响。
In this paper, rotor faults model in squirrel cage induction motors with broken bars and end-ring connector is presented. The calculation of parameter and mathematicalmodel on rotor faults in cage induction motor is given. The parameter of single winding and phase winding can be given. Its base on fault detection and diagnosis for cage motors. A new method is developed to detect broken rotor bars and end ring connectors for cage induction motor, which is based on the so-called Park抯 vector approach The generality of the proposed methodology has been experimentally tested on 2.2 KWsquirrel cage induction motor. The obtained result agrees with experimenter.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2002年第10期97-103,共7页
Proceedings of the CSEE
关键词
鼠笼感应电机
转子断条
端环开裂
故障诊断
参数计算
broken rotor bars and end ring connector
faults detection and on-line diagnosis
squirrel cage induction motors
