六相感应电机的矢量控制研究

摘要

The rotor flux-oriented vector control for six-phase induction motor speed control system was studied on the basis of mathematical model of six-phase induction motor. The torque component and the exciting component of stator current can be got by coordinate transformations in the process of controlling. In order to control the torque and the magnetic field of the motor, two controllers can be used to regulate the current components separately. In the environment of MATLAB/Shmilink, design the speed controller, flux controller and torque controller on the foundation of rotor flux-oriented vector control, then dynamic simulation was made. The simulation results demonstrated that the six-phase induction motor control system based on vector control can track with given speed and rotor flux, also it has good static and dynamic responsiveness.%在分析六相感应电机数学模型的基础上,对基于转子磁链定向的六相感应电机调速系统的矢量控制进行了研究.在控制过程中,通过坐标变换得到定子电流的转矩分量和励磁分量；利用两个调节器分别对两个电流分量进行调节,从而实现对电机磁场和转矩的控制.在MATLAB/Simulink环境下,利用按转子磁链定向的矢量控制原理,设计六相感应电机的转速控制器、磁链控制器和转矩控制器,进行六相感应电机矢量控制的动态仿真.仿真结果证明:基于此算法的六相感应电机控制系统,能很好地跟踪速度给定和期望的转子磁链,具有较好的动态与静态响应能力.