Design of Sliding-and-Classical Controllers Using Sliding Mode Technique

• Main Authors: Chen, Chin Chi, 陳清祺
• Other Authors: Cheng, Chih Chiang
• Format: Others
• Language: en_US
• Published: 1994
• Online Access: http://ndltd.ncl.edu.tw/handle/46781566567644811987

碩士 === 國立中山大學 === 電機工程研究所 === 82 === This thesis is concerned with the development and improvement of an existing method for designing a hybrid sliding mode and classical controller. The idea is based on defining the sliding variable in such a way that once the system gets into sliding, not only the classical controller transfer function can be realized, but also the noise enhancement phenomena can be eliminated when realizing an improper controller. The advantage of this sliding-and-classical controller are that it can retain all the merits of both types of controllers on one hand and eliminates their respective limitations on the other. For the improvement of the existing design method, the number of diffe- rentiator of the sliding surface variable is reduced, and the theoretical part of processing noise problem is also provided. The proposed method is robust and can be applied to non-minimum phase systems as well as systems with structural uncertainties. Finally, the sliding-and-classical controller is applied to a real electrohydraulic system.