基于转子磁场定向控制的PMSM伺服系统建模仿真

在分析永磁同步电动机（PMSM）数学模型的基础上，建立了的转子磁场定向矢量控制的PMSM伺服系统模型。系统采用位置、转速和电流三闭环控制，其中位置环和速度环采用经典的PI控制，电流环采用转子磁场定向矢量控制，以实现瞬时的转矩调节。仿真模拟了PMSM的恒转矩起动、恒功率运行以及负转矩制动的全过程，实现了位置伺服的精确控制。

Modeling and Simulation of PMSM Servo System Based on Rotor Field-Oriented Vector Control

In this paper,base on the mathematical model of the permanent magnet synchronous motor(PMSM),a PMSM rotor field oriented vector control system model has been established.In the triple loops of control system,two PI controllers are adopted in the speed and position loop,a stator field-oriented vector controller is adopted in the current loop in order to control the torque instantaneous.The simulation models the whole procession of constant torque starting,invariable power running,and inverse torque braking and the simulation result realizes position accurate control of the servo system.