基于滑模观测器的永磁直线同步伺服系统

针对永磁直线同步电机伺服系统,提出滑模速度观测器和P-IP位置控制策略,来实现参考位置信号的跟踪控制.详细分析了滑模速度观测器的模型结构,给出观测器增益值的确定方法和速度观测算法.详细分析了P-IP控制器的结构和参数确定方法.采用高性能DS1103控制器作为控制核心,搭建永磁直线伺服系统.实验结果表明,滑模观测器能够准确观测动子直线速度和位置,所提出的位置控制系统具有准确的跟踪能力,对外部扰动具有很强的鲁棒性.

Permanent Magnet Linear Synchronous Servo System Based on Sliding Mode Observer

A sliding mode observer and P-IP position control strategy were proposed to control the mover position of PMLSM servo drive to track reference input signal.The model structure of sliding mode observer was analyzed in detail.The method of determining observer gain and algorithm of observing speed were presented.P-IP controller structure and method of determining parameter were analyzed in detail.The permanent magnet linear servo system uses high performance DS1103 controller as control core.Finally,the experiment results demonstrate that sliding mode observer can observe mover linear speed and position with precision.The proposed control system has a good track performance,and it is robust with regard to external disturbances.