摘要
针对传统PI控制的不足,将基于转速误差灰色预测的模糊PI控制引入异步电动机调压调速系统中,提出了一种计算简便的控制方法。该方法利用GM(1,1)模型预测转速误差,并采用模糊控制器对PI参数进行实时在线自调整,改善了系统的控制性能。仿真结果表明,在给定转速和负载转矩变化的情况下,该方法较传统的PI控制具有更好的控制效果。
To cover the shortage of the classic PI control, the fuzzy PI control based on gray prediction of speed error is introduced to the variable voltage speed control system of asynchronous motors. A control scheme accessible to calculation is proposed. In this scheme, GM （1,1） model is applied to predict the speed error, and the fuzzy controller is applied to self-adjust PI parameters in real time, so the control performance of this system is improved. Simulation experiment results show that this scheme has better control effect than classic PI control method when the given speed or the load torque is varied.
出处
《北京信息科技大学学报（自然科学版）》
2012年第3期64-67,共4页
Journal of Beijing Information Science and Technology University
基金
北京信息科技大学科研基金项目(1025027)
关键词
异步电动机
调压调速
灰色预测
模糊PI控制
asynchronous motor
variable voltage speed control
gray prediction
fuzzy PI control
