基于SVPWM的异步电机矢量控制系统的仿真

首先阐述了空间矢量脉宽调制技术应用于交流感应电机矢量控制系统的基本原理,在此基础上讨论了间接转子磁场定向电压注入型矢量控制系统的实现方案,基于MATLAB/SIMULINK构建了这种矢量控制系统的仿真模型并进行了深入的仿真研究.仿真结果表明了模型的正确性,并验证了该文所建立的调速系统可以实现感应电机产生转矩的电流分量和产生磁通的电流分量之间的解耦控制,使感应电机获得与他励直流电机一致的瞬态响应特性,实现了对负载扰动和参考值变化的快速响应.

Simulation of Vector Control System of Induction Machine Based on SVPWM

This paper introduces the basic principles of the space - vector pulse width modulation (SVPWM) employed in AC induction machine vector control system. Then the scheme of the indirect rotor - flux - oriented control of a voltage - source inverter - fed induction machine drive is discussed. A simulation model is established under MATLAB/SIMULINK and many simulation studies are performed to verify the feasibility of the proposed vector controlled drive. The results not only indicate the validity of the model, but also show that with this vector control technology of induction machines, the torque - producing and flux - producing current components are decoupled and the transient response characteristics are similar to those of a separately excited DC machine, and the system is adapted to any load disturbances and reference value variations as fast as DC machine.