基于PMSM的智能型位置伺服控制系统研究

Research on the intelligent position servo control system based on PMSM

为了实现对系统位置的高精度控制,将智能滑模变结构控制策略引入到三闭环矢量控制中,设计了基于PMSM的智能位置伺服控制系统。系统的位置环采用模糊滑模变结构控制,并由主、从两个模糊控制器组成,主控制器用于产生输出控制量,从控制器在线调节主控制器的输出比例因子,以抑制滑动模态的抖振。仿真结果表明,该智能型位置伺服控制系统在大、小位置给定下均能够同时获得定位无超调和定位时间的准最优控制,具有优良的动、静态性能。

In order to realize the accuracy control of the position of the system,the intelligent sliding mode variable structure control strategy is introduced into the three closed-loop vector control and an intelligent position servo control system based on PMSM is also designd.The position loop of the system adopts the fuzzy sliding mode variable structure control,which is constituted by the major and minor two fuzzy controllers,and the main controller is used to produce the output of control,while the other one online adjusts the output scaling factor of the main controller to restrain the buffeting of the sliding mode.The simulation results show that in the condition of the large and small positions given the intelligent position servo control system can simultaneously obtain positioning without overshoot and quasi-optimal control of the positioning time,and has good dynamic and static performances.