Study on Fuzzy Self-tuning PID Cascade Control Algorithm for Temperature of Active Solar House Heating System

摘要

Aiming at the control to temperature of Active Solar House Heating System, which has large time-delay, time-varying and model uncertainty . Fuzzy Self-tuning PID Cascade Control algorithm is prevailed. It takes the advantage of cascade control algorithm to overcome dynamic characteristics of controlled parameter, a self-tuning PID control for achieving perfect control effect. The simulation shows that the algorithm is better than the conventional PID cascade control, it has better adaptabilities for the parameters’ variation, lower overshoot and better anti-interference ability.