高性能永磁直线同步电机鲁棒速度伺服系统的研究

文章针对高性能永磁直线同步电机 ( PML SM)速度伺服系统的要求 ,首先提出了一种基于传统观测器导出的辨识方法 ,对负载阻力、动子质量 ,粘滞摩擦系数进行在线辨识 ,实时补偿上述 3个参数变化所造成的推力扰动。其次 ,设计了一个时滞补偿器 ,对逆变器电路电力传输滞后和转速测量滞后所造成的系统动态性能下降进行了补偿。最后 ,结合 IP速度控制器设计了一高性能永磁直线同步电机速度伺服系统。仿真实验表明 ,所设计系统具有很强的鲁棒伺服性能。

Research of High-performance Permanent Magnet Linear Synchronous Motor Robust Speed Servo System

For the requirement of high performance PMLSM speed servo system,an identification method developed by traditional observer is proposed firstly in this paper to identify load resistance,mover mass,viscous friction coefficient on line and compensate the thrust disturbance,caused by the variation of the above three parameters,in real time.Secondly,a time delay compensator is designed to compensate the dynamic property degradation of the system caused by electricity transmission delay in inverter circuit and speed measurement delay.Finally,a high performance PMLSM speed servo system is designed with IP speed controller.Simulation shows that the designed system has robust servo performance.