基于二阶不对称矩阵的异步电动机定子匝间短路故障建模与分析

Model and Analysis of Stator Inter-Turn Short-Circuit Fault in Induction Motor Based on Second Order Asymmetric Matrix

定子绕组匝间短路是异步电动机常见的故障之一。基于Matlab对三相异步电动机进行数学建模,并通过Clarke变换将三相静止坐标系下的数学模型转换为两相静止坐标系,引入二阶不对称矩阵模拟定子匝间短路,对该模型进行数字仿真。采用Ansoft Maxwell 2D对其进行有限元分析,验证了模型的正确性。

Stator inter-turn short-circuit fault is a common fault in induction motor.A mathematical model of an induction motor is established using Matlab.A simplified model in a two-phase stationary coordinate system is obtained with Clarke transformation.A second order asymmetric matrix is introduced to imitate inter-turn short-circuit and carry out mathematical imitation on the model.Accuracy of the model is checked using finite element analysis with Ansoft Maxwell 2D.