A Study on the Quasi-Sliding Mode Condition in Discrete Time Variable Structure Systems

아산시간 가변구조 시스템에서 준 슬라이딩 모드 조건에 관한 연구

In this paper, we suggest a new quasi-sliding mode condition with a wighting factor which guarantees all the states to reach switching planes and improves the convergence of the state trajectories. The result of computer simulation shows that by the suitable selection of a weighting factor, all the state trajectories reach switching planes and enter the sliding mode having the property of the insensitivity to parameter variation and disturbances.