¹Tsinghua University/ School of Automation, Beijing, China
²Naval Aeronautical Engineering Institue,Shandong, China
³Beijing Information Science & Technology University / School of Automation, Beijing, China

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Abstract—According to the character of the volume-lag of the controlled process of three-tank-system, Smith predictor was adopted to compensate three-tank-system fuzzy adaptive control system. Fuzzy adaptive Smith predictive control system is composed with Smith predictor and fuzzy adaptive controller. The PID parameters were setting on line. This algorithm uses fuzzy adaptive PID control to improve the resistance ability to random disturbance and Smith predictive control to overcome the time-delay character of controlled object. Simulation results showed that this control algorithm has the advantages of strong adaptive ability and noise immunity.

Index Terms—fuzzy control, adaptive, Simth-PID, threetank- system

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Cite: Jianqiu Deng, Cui Hao, "The Smith-PID Control of Three-Tank-System Based on Fuzzy Theory," Journal of Computers vol. 6, no. 3, pp. 514-523, 2011.