Discrete-time adaptive quasi-sliding mode controllers

• Main Author: Yuan, Qizhi.
• Other Authors: Chan, Robert Chok You
• Format: Theses and Dissertations
• Language: English
• Published: 2009
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Control and instrumentation::Control engineering
• Online Access: http://hdl.handle.net/10356/19751
• Institution: Nanyang Technological University

In this thesis, the development of discrete-time adaptive quasi-sliding mode controllers for unknown plants represented by the state space is presented. Both single-input and a special class of multi-input plants are considered. The adaptive control is developed using the delta operator, which is an approximation of the differential operator. The delta operator form of the discrete-time model closely resembles the continuous-time model, and allows the selection of the sliding surface similar to that of the underlying continuous-time system, which would not be possible otherwise.