基于Simulink的交流电机矢量控制调速系统的仿真

Simulation for Vector Control Variable-frequency Drives of AC Motor Based on Simulink

根据矢量变换控制原理,利用Simulink和SimPowerSystems构建了电流滞环跟踪PWM矢量控制变频调速系统,详细介绍了各个子模块的构造方法及功能。通过对其进行动态及稳态性能的仿真,体现了该系统能够很好地模拟真实系统,转速动态响应快,稳态静差小,抗负载扰动能力强,仿真结果表明采用该建模方法的仿真模型准确,实现简单,使用方便,为矢量控制技术在电力传动领域的推广应用提供了一种前期检验方法和研究手段。

Tbe current hysteresis band PWM vector control variable frequency drives system is established based on vector transformation principle and Simulink/Sim Power Systems, and the modeling method and function of all sub- systems are introduced in detail . With the simulation on dynamic and static performance, it can be proved that the novel system can simulate the real system well , which has rapid dynamic response to rotate speed , minor static error , and good ability of loads disturbances-rejection . The simulation results show that the simulation model is accurate , and it can be realized simply and used conveniently . The study will provide a kind of the earlier examination method and research means for the application of the vector control technology in electric drive fields.