基于Matlab的双馈调速系统研究

Research on Double-fed Motor Speed Regulation Based on Matlab

本文介绍了异步电机双馈调速的原理,并用Matlab构建出双馈调速系统模型。其中转子绕组用交-交变频器供电。文中指出了Matlab仿真库中的异步电机模型与变频器连接时存在不匹配的问题并提出相应的解决方法,取得了较好的效果。用该模型对一实例进行了仿真,仿真结果与实际运行情况非常吻合,验证了模型的正确性。该系统模型对于研究此类双馈变频调速系统有一定的参考价值。

The principle of double-fed motor speed regulation is introduced, and a simulation model is built with Matlab software. In the simulation the motor model in Simulink can not be connected directly to the cycloconverter model. This problem is solved by adding an ideal transformer model between them The system model is used to simulate the real case. The simulation result agrees with the real one and the correctness of this system model is verified. So there are some values for studying similar questions.