永磁同步电机矢量控制系统仿真研究

Simulation research on vector control system of pmsm

相比传统感应电机,永磁同步电机有着启动转矩大,力能指标好,功率因数高等优势。本文在推导永磁同步电机的数学模型、矢量控制原理分析的基础上,运用MATLAB/Simulink对转速电流双闭环永磁同步电机矢量控制系统进行空载减速、突加负载仿真实验。实验结果表明该系统响应速度快,抗干扰能力强,电流、转矩脉动低,验证了本文控制策略的可行性。

Compared with the traditional induction motor,permanent magnet synchronous motorhas has the advantages of lage starting torque,good force energy index,high power factor.On the basis of the analysis of the mathematical model and the vector control principle of the permanent magnet synchronous motor,The speed and current double closed loop permanent magnet synchronous motor vector control systemare created and simulated by use of matlab/simulink. For example, the simulation experiment of unloaded deceleration and sudden load change,The experimental results show that the system has fast response speed, strong antiinterference ability and low current and torque ripple, which proves the feasibility of the control strategy in this paper.