Quantized Observer-Based Sliding Mode Control for Networked Control Systems Via the Time-Delay Approach
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This paper investigates the sliding mode control problem for networked control systems, which are influenced by the non-ideal network environment, such as network-induced delays, packet dropouts and quantization errors. The states of the system are assumed to be unavailable, and an observer is designed to estimate the state of the system, based on which a sliding mode controller is given to guarantee the closed-loop system to be stable. Furthermore, it is shown that the proposed control scheme ensures the reachability of the sliding surfaces in both the state estimate space and the estimation error space. Finally, a numerical example is given to illustrated the effectiveness of the proposed methodology.
KeywordsNCSs Sliding mode controller Signal quantization Data dropout
This work was supported in part by the China National Funds for Distinguished Young Scientists under Grant (61425009), in part by the National Natural Science Foundation of China under Grants (61305135, 61427808, 61333009, 61320106009, 61320106010, 61374083), and in part by National Key Basic Research Program of People’s Republic of China under Grants 2012CB821204.
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