参数识别技术在三相感应电动机实验中的应用

Application of Parameter Identification into the Test of Three-phase Induction Motors

介绍了获得三相感应电动机T形等效电路参数的传统实验方法,在此基础上提出了一种参数识别方法。该方法利用三相感应电动机定子电流特性曲线和输入功率特性曲线,构造误差函数,进一步应用最优化技术获得三相感应电动机T形等效电路参数。以一台Y160M-4三相感应电动机为例,给出了传统实验方法和参数识别方法获得的等效电路参数。

The traditional tests to obtain the parameters of the T-type equivalent circuit for induction motors was introduced. Then a method of parameter identification was presented. By means of the characteristics of the input current and the input power of the motors, an error function, in which error was minimized by optimization techniques to find the parameters was brought up with this method. The parameters of the induction motor of Y160M-4 was gained. Parameters obtained by the traditional tests and those by parameter identification were compared respectively.