Designation and Simulation of Environment Laboratory Temperature Control System Based on Adaptive Fuzzy PID

摘要

As environment laboratory has huge space and wide temperature control range, the controlled object is a large time-delay and nonlinear system, so normal PID control method cannot make temperature control process have satisfied dynamic process and steady state. In order to solve the problem, adaptive fuzzy PID control method is presented based on the modeling of the environment laboratory, the method can modify the PID parameters on line and meet the requirement of parameters turning in temperature control process. The simulation result shows that the model and adaptive fuzzy PID control method has the advantage of fast response, less overshoot and great control effect.