Automatic tide generation system using Fuzzy Pre-compensator PID controller

摘要

To study physical phenomenon occurring in nature, physical model is needed. In case of tidal hydraulic model, to study tide behavior, accurate tide generation is necessary. It has always been challenging to generate the accurate tide in the tidal hydraulic models. This paper describes automatic tide generating (ATG) system in physical model using Fuzzy Pre-compensator PID controller. The interaction of the user with this latest Fuzzy Pre-compensated PID Controller proves tidal control system very friendly. The accuracy of generated tides is better than 0.05 mm(previous systems had accuracy of 0.2 mm) in water level and repeatable over long duration of time as much as 24 hours with full intake of water and power supply. This scheme overcome the drawback such as overshoot and undershoot which occurs in system by the transient response when PID controller acting alone. In this work, the scheme developed is trying to improve the performance of system due to nonlinearities in the plant. Result show that the fuzzy pre-compensated PID controllers have superior performance compared to conventional PID controllers for different nonlinearities in plant.