永磁同步电动机的滑模变结构位置伺服系统研制

摘要

为提高永磁同步电动机位置伺服系统的快速性和精确度,采用滑模变结构控制策略,由电机数学模型和位置检测方法推导出一种新的位置关系状态方程,据此设计位置滑模变结构控制器,降低了滑模控制的阶次,简化了控制器的设计.实验结果表明所设计的控制器位置响应快、无超调,有效地提高了伺服系统的动态性能.%In order to improve the rapidity and accuracy of the permanent magnet synchronous motor position-servo system,the sliding mode variable structure control strategy was applied to the system.A new state equation of position was derived by position detection method and the PMSM mathematical model,the position sliding mode variable structure controller was designed on the equation to reduce the order of sliding mode control and simplify controller design.The experimental results show that the sliding mode position controller has rapid position response and no overshoot and effectively improve the dynamic performance of the servo system.