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To alleviate the chattering problem, a new type of fuzzy global sliding mode controller (FGSMC) is presented. In this controller, the switching gain is estimated by fuzzy logic system based on the reachable conditions of SMC, thus the effect of Lugre friction on switch chattering can be alleviated. Moreover, global sliding mode is realized by designing an exponential dynamic sliding surface. Simulation...
This paper presents a kind of robust sliding mode controller (SMC) based on disturbance observer. The overall system consists of two parts: one is the design of disturbance observer (DO), the other is the design of discrete SMC controller. By using DO technology, the external disturbances can be compensated and the SMC control law can be used successfully. The proposed controller is adopted in flight...
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