Discrete time high order sliding mode

• Main Authors: Wei-Hung Kuo, 郭威宏
• Other Authors: Chieh-Li Chen
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/80884059994515594901

碩士 === 國立成功大學 === 航空太空工程學系碩博士班 === 91 === To achieve the required system performance, the control system should robust to system uncertainties and disturbances. The sliding mode controller can be designed systematically with robustness to matched uncertainties. Therefore, it has been widely applied to many theorical studies and industrial applications. The high order sliding mode controller can be considered as an extension of conversional sliding mode controller with less state information required and can suppress or reduce chattering due to the controller output. This make the high-order sliding mode controller more realizable then the conversional sliding mode controller. In this thesis, discrete systems with disturbances are considered. An approach to design 2-order discrete sliding mode controller is proposed. The result can be extended to the high order cases. Using the Lyapunov stability criterion, the resulting system is guaranteed to stay around the desired sliding surface with a specific boundary. The performance of the proposed control system can be achieve, the design objective which indicate its feasibility of the proposed discrete high-order sliding mode controller.