Abstract
In the glass production industry, kiln glass liquid level control system is an important link. And the controlled object of liquid level control system often has the characteristics of nonlinear, time-varying and long time-delay. For this kind of complex control system, the parameters of the PID controller are difficult to be set and it is difficult to obtain the expected control effect. This paper puts forward combining fuzzy controller and Smith predictor, expounds the complementary action between Smith predictor controller and fuzzy controller. Finally according to the characteristics of the glass kiln liquid level fluctuation and the actual situation, the reasonable glass kiln liquid level automatic control scheme is designed. Using Simulink tool in MATLAB to do the simulation for the system and through the analysis of simulation results, this control system can achieve good control effect.
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