基于Laguerre函数的BLDCM转速预测控制器  

BLDCM Speed Predictive Controller Based on Laguerre Function

作　　者：郭伟 姜睿[1] 李涛 高严凯 GUO Wei;JIANG Rui;LI Tao;GAO Yan-kai(Collaborative Innovation Center of Atmospheric Environment and Equipment Technology,Nanjing 210044,China;School of Automation,Nanjing University of Information Science & Technology,Nanjing 210044,China)

机构地区：[1]大气环境与装备技术协同创新中心,江苏南京210044 [2]南京信息工程大学自动化学院,江苏南京210044

出　　处：《测控技术》2019年第6期110-114,共5页Measurement & Control Technology

基　　金：国家自然科学基金资助项目(61573189)

摘　　要：针对无刷直流电机(Brushless DC Motor,BLDCM)模型参数时变的特性,为解决不同工况下的转速跟踪问题,将Laguerre函数引入控制器设计中,提出了一种新型的广义预测控制算法。该算法通过对控制量的参数化设计,减少了计算量,使得系统响应加快;通过修改PI型性能指标,抑制了超调,提高了系统稳定性。仿真结果表明,相比传统广义预测控制(Generalized Predictive Control,GPC)算法,用该算法设计的转速控制器对跟踪指令响应更快,抗干扰能力强且对参数不确定性具有较强的鲁棒性。In view of the time-varying characteristics of brushless DC motor(BLDCM)model parameters,in order to solve the problem of speed tracking under different working conditions,the Laguerre function is introduced into the controller design,and a new generalized predictive control algorithm is proposed.The algorithm reduces the amount of calculation and speeds up the system response by parameterizing design of the control variables.By modifying cost function to the structure of PI,the overshoot is suppressed and the system stability is improved.The simulation results show that compared with the traditional generalized predictive control(GPC)algorithm,the speed controller designed by this algorithm has faster response to tracking commands,strong anti-interference ability and robustness to parameter uncertainty.

关 键 词：无刷直流电机 LAGUERRE函数 广义预测控制 PI型性能指标 

分 类 号：TP273.3[自动化与计算机技术—检测技术与自动化装置]