Fuzzy Control and Its Application in Matlab. Xi’an: Xi’an
- Zhang GuoLiang, Zeng Jing, Ke Xizheng, Deng FangLin
Abstract. By testing the superheated steam temperature and its variation trend ,the traditional superheated steam temperature control system of boiler regulates desuperheating water flow so as to control the superheated steam temperature within permitted range . Under the influence of disturbance in desuperheating water flow, the delay of superheated steam temperature is bigger,which makes superheated steam temperature control lagged and dynamicity is strong, the effect of control is not ideal .This paper interpreted a kind of cascade PID control system with good adaptability to load variation and a design scheme of PID parameter self-adapting controller based on fuzzy control principle is put forward,simulation study is made with the tool boxes of SIMULINK and FUZZY inside MATLAB, comparisons show a better control result of fuzzy control system with self-adapting parameter than with fixed parameter system.