Research of Network Pressure-superposed Water Supply System Based on Simulink Simulation

Network pressure-superposed water supply system is a nonlinear,multivariable coupling system whose precise mathematic model is difficult to obtain.And it is hard to control for its output is influenced by both network pressure and user flow interferences.In order to meet the requests of the government and the users,fuzzy PID controller was proposed to realize the on-line adjustment of PID parameters by fuzzy algorithm.Based on Simulink simulation,comparisons were made between fuzzy PID controller and traditional PID controller.The simulation results show that fuzzy PID has a better control of pressure-superposed water supply system because of its fast response,non-overshoot,strong anti-interference ability,wide adaptability,good robustness and stability.