三相异步电动机的磁链定向矢量控制技术研究

摘要

首先介绍了三相异步电动机的工作原理以及建立了其数学模型，阐述磁链定向矢量控制技术的工作原理，然后根据V/f变频调速理论，在MATLAB/Simulink中搭建了带转矩内环的转速、磁链闭环矢量控制系统模型异步电动机矢量控制系统的仿真模型，并进行了仿真。最后通过仿真结果证明了异步电动机磁链定向矢量控制具有优良的控制性能。%The paper firstly gives a introduce to the working principle of three-phase asynchronous motor and builds the mathematical model of asynchronous motor, and the working principle of flux oriented vector control technology is expounded. Then according to the V/F frequency control theory, the paper builds the simulation model of flux closed-loop vector control system with inner torque speed for asynchronous motor based on MATLAB/Simulink, and the simulation is carried out. Finally, simulation results show that the flux oriented vector control of asynchronous motor has excellent control performance.