摘要
针对传统滑模控制器(SMC)存在抖振、动静态特性不佳的问题,提出一种基于加权积分型增益的SMC。新型趋近律在传统指数趋近律的基础上引入加权积分型增益,并经过李雅普诺夫定理验证滑模面的可达性。将加权积分型增益SMC与传统、积分型增益SMC进行对比。仿真结果表明,所提加权积分型增益SMC能够改善传统SMC的抖振,减小滑模观测器的估算偏差,并且具有快速性和对外部干扰的不敏感性,证明了所提控制策略的有效性与优越性。
Aiming at the problems of chattering and poor dynamic and static characteristics of traditional sliding mode controller(SMC),an SMC based on weighted integral gain is proposed.Based on the traditional exponential reaching law,the new reaching law introduces the weighted integral gain,and the accessibility of the sliding mode surface is verified by Lyapunov theorem.The weighted integral gain SMC,the traditional SMC and the integral gain SMC are compared.The simulation results show that the proposed weighted integral gain SMC can suppress the chattering of SMC and reduce the sliding mode observer estimation variance,and it has quickness and the insensitivity of external interference.The effectiveness and superiority of the control strategy are proved.
作者
王红艳
陈景文
李英春
WANG Hongyan;CHEN Jingwen;LI Yingchun(Information and Network Management Center,Shaanxi University of Science&Technology,Xi’an 710021,China;School of Electrical and Control Engineering,Shaanxi University of Science&Technology,Xi’an 710021,China)
出处
《电机与控制应用》
2021年第5期21-25,共5页
Electric machines & control application
基金
陕西省自然科学基础研究计划项目(2020JM-511)。
关键词
永磁同步电机
滑模控制器
新型趋近律
抖振抑制
permanent magnet synchronous motor(PMSM)
sliding mode controller(SMC)
new reaching law
chattering suppression
