Fuzzy adaptive command filtered discrete control of cascade continuous stirred tank reactors
A fuzzy adaptive discrete control method is proposed for the cascade continuous stirred tank reactors system based on the command filtered technology.The mathematical model of the cascade continuous stirred tank reactors system is discretized by Euler method.The"complexity of computation"and noncausal problems caused by backstepping in the de-sign process of the controller are solved through the command filtered technique.The design process of the controller is simplified by combining fuzzy adaptive control with command fil-tering,and the on-line calculation amount of the control system is also reduced.The stabili-ty of the closed-loop system is proved by using the difference Lyapunov function.MATLAB simulation results verify the effectiveness and feasibility of the proposed controller.Com-pared with the existing continuous control methods for the cascade continuous stirred tank reactors,the proposed control strategy has better intuitiveness and realizability.Compared with the existing discrete control methods,the advantages of the proposed control strategy are as follows:the controller structure is simpler,the computation complexity is lowered,the overshoot is greatly reduced,and the input control is easier to actualize.
cascade continuous stirred tank reactors(CCSTR)discrete controlcommand filtered controladaptive backstepping control
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