基于电流模型的异步电机双闭环控制系统仿真

分析了直接转矩控制中传统的异步电动机定子磁链观测器——纯积分器的局限性,换用电流模型,在磁场定向的旋转坐标系下,建立了带有转矩、磁链双闭环的交流异步电机矢量控制系统。其转矩、速度、和磁链的闭环都是采用带有限幅的PI调节器。仿真结果验证了带有转矩和磁链闭环的双闭环控制系统具有更好的性能。

Double Closed Loop Control System Simulation of Asynchronous Motor Based on Current Model

This paper analyzes the direct torque control of asynchronous motor stator of traditional flux observer, pure integrator limitations,use current model.In the field oriented with the Bloch equation,sets up an asynchronous motor vector control system with torque,magnetic chain of double closed loop.The torque,speed,and magnetic flux closed-loop are using the PI regulator with Saturation.The simulation results verify the with torque and magnetic flux closed-loop double closed loop control system has better properties.