一种基于生物智能算法的PMLSM速度控制系统

摘要

In the driving system of permanent magnet linear synchronous motor (PMLSM),traditional PID controller usually cannot meet the demand of dynamic response.In this paper,a new two-level controller (TLC) based on the principle of testosterone regulation in biology was introduced to replace the PID controller.Experiment platform of along surface-mounted secondary permanent magnet synchronous linear motor was introduced,which included three linear hall sensors fixed for calculation of electrical angle and speed.Specially,Kalman filter was used to smooth the speed curve.The experiment results show that robustness and responding speed were both improved by using the new controller.%针对永磁同步直线电机速度控制系统中PID控制器难以满足系统动态响应要求的问题,设计了一种基于生物智能算法的双层控制器,提高速度环的动态响应能力.该双层控制器基于生物学中睾酮反馈调节原理,前级控制器的输出量作为后级控制器的参考量,两级控制器的反馈量均为动子速度.并以表贴式长次级永磁同步直线电机为实验对象,搭建了调速控制实验平台,采用线性霍尔结合卡尔曼滤波器进行电角度和速度计算.实验结果表明,相比于传统PID控制器,该控制器具有鲁棒性强、控制精度高、响应速度快、抗干扰能力强等优点.