A NOVEL SLIDING MODE CONTROL FOR A CLASS OF SECOND-ORDER MECHANICAL SYSTEMS

被引:4
|
作者
Sheng, Yongzhi [1 ]
Wang, Liang [1 ]
Liu, Xiangdong [1 ]
机构
[1] Beijing Inst Technol, Sch Automat, Key Lab Intelligent Control & Decis Complex Syst, Beijing 100081, Peoples R China
基金
中国国家自然科学基金;
关键词
Sliding mode control without reaching phase; modified PID-type sliding function; variable-gain; mechanical systems; SURFACE; DESIGN;
D O I
10.1002/asjc.1268
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper considers the tracking control problem of a class of second-order mechanical systems involving parametric uncertainty and external disturbance by a sliding mode control (SMC) without reaching phase. Specifically, an SMC strategy with modified variable-gain proportional-integral-derivative (PID)-type sliding function is proposed, by which the existence of a sliding mode throughout an entire response of the system starting from the initial time instance is ensured. Meanwhile, the introduction of a variable gain in the sliding function design effectively solves the dilemma between quicker response and smaller overshoot. The effectiveness of the proposed strategy is verified by both theoretical analysis and simulation results.
引用
收藏
页码:1950 / 1957
页数:8
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