CASIA OpenIR  > 智能制造技术与系统研究中心  > 先进制造与自动化
The Variable Structure PI Speed Controller for AC Servo System
Hao Lu1,2; Yunkuan Wang1,2; Yong Yuan1,2; Jianhua Hu1,2; Yubin Cai2; Bo He3; Jin He3
Conference NameProceedings of the 29th Chinese Control and Decision Conference
Conference Date2017-05-28
Conference PlaceChongQing
AbstractThe high performance AC servo system is required to achieve fast response without overshoot. The traditional proportional-integral(PI) controller which utilizes fixed parameters, however, cannot well guarantee the requirement for both response and overshoot at the same time. Thus a variable structure PI(VSPI) controller is proposed in this paper, and the stability conditions of the closed-loop system based on which is given according to Lyapunov stability criterion. When the absolute value of speed error is smaller than the threshold value, the proportional gain and integral gain are regulated adaptively by a linear function; Otherwise, the proportional gain and the integral gain remain the fixed value. Experiment results show that compared with the traditional PI controller, the VSPI controller under a speed step input can achieve fast response with effectively reduced overshoot.
KeywordAc Servo System Overshoot Fast Response The Variable Structure Pi Controller
Document Type会议论文
Corresponding AuthorHao Lu
Affiliation1.Institute of Automation, Chinese Academy of Sciences
2.University of Chinese Academy of Sciences
3.Huludao Especial Equipment Supervise Test Institute
4.Bohai Shipyard Group Co., Ltd.
Recommended Citation
GB/T 7714
Hao Lu,Yunkuan Wang,Yong Yuan,et al. The Variable Structure PI Speed Controller for AC Servo System[C],2017.
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