异步电动机直接转矩控制系统的MATLAB仿真

介绍了一种基于MATLAB的异步电动机直接转矩控制系统的仿真方法.在分析了直接转矩控制系统的结构和工作特点之后,结合MATLAB提供的仿真环境和各种工具箱设计了一个能分析整个系统性能的仿真系统.包括利用功率系统工具箱实现功率部分的仿真;通过编写自定义的S-FUNCTION实现各种复杂的控制算法;以及在SIMULINK环境下结合已有的各种工具箱实现系统的建模.最后给出了一个利用MATLAB对异步电动机直接转矩控制系统进行仿真的实例,为追求整体性能的提高提供了一个好的工具.

Simulation of Direct Torque Control System of Induction Motors Using MATLAB

A simulation method of direct torque control system of induction motor is presented, based on MATLAB. After discussing the configuration and working style of the direct torque control system, a simulation method, which is able to analyze the characteristic of the whole system, is proposed, based on the simulation environment and various blocksets provided by MATLAB. This includes realizing the simulation of the power system using the Power System Blockset, realizing various complex control methods using user defined S FUNCTION, and building the model of the direct torque control system in the SIMULINK environment using blocks provided by SIMULINK. An example of simulation is given at the end of this paper, which proves the validity, feasibility and facility of the proposed method.