Fuzzy Adaptive Pid Control of Large Erecting System
نویسندگان
چکیده
In considering nonlinearity and uncertainty in the large erecting system, a fuzzy adaptive PID controller is introduced to improve the control performance. The mathematic model is constructed at first based on the physical laws. Then, the fuzzy logic algorithm which can regulate PID parameters on-line is designed and fuzzy inference rules are established between the PID parameters and the error and change in error. Step response and position tracking are implemented on this large erecting system. Simulation and experiment results demonstrate that the fuzzy adaptive PID controller has effectively improved the performance as compared with the conventional PID controller and fixed fuzzy controller. Further, the fuzzy adaptive PID controller is simple, easy to understand and realize.
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