摘要
设计高性能的精密伺服系统,为激光跟踪仪实现跟踪和精密测量,针对精密伺服系统转速低、响应快、精度高的性能要求,提出一种永磁同步电机(PMSM)矢量控制原理及空间矢量脉宽调制(SVPWM)算法的精密伺服系统建模的方法,在Matlab/Simulink环境中搭建了位置、速度和电流三闭环控制系统仿真模型。仿真结果验证了上述系统模型的有效性,通过使用变速积分PI算法进行PI调节器设计对仿真模型进行优化,最终实现精密伺服系统在低转速范围内,能够快响应、高精度平稳运行。结果证明,提出的建模方法为实际控制系统设计、调试和运行提供了充分的理论依据。
It is known that modeling the precise servo system with high - performance lays the basis to achieve function of the tracking and accurate measure for laser tracker. Considering the requirements of low rotating speed, quick response, high accuracy, the paper introduces a method of modeling the precise servo system based on princi- ple of PMSM vector controlling principle and an algorithm of space vector pulse width modulation （SVPWM）, and a simulation model is constructed for the three closed loop control system of position, speed and current in Matlab/Sim- ulink. The simulation results prove the effectiveness of the model. In fact, by means of designing PI regulator by u- sing the variable integral PI algorithm to optimize the simulation model, the target has been achieved that the precise control system is capable of running in low rotating speed range with quick response and high accuracy. The modeling method in the paper supplies sufficient basis for the practical control system designing, debugging and running.
出处
《计算机仿真》
CSCD
北大核心
2014年第10期20-24,共5页
Computer Simulation
