Greenhouse temperature controller design based on the fuzzy PID

Zong Zheying, Wang Chunguang, Zhang Yong, Zhang Chunhui

COMPUTER MODELLING & NEW TECHNOLOGIES 2014 18(12D) 346-349

School of Inner Mongolia Agricultural University, Hohhot City, Inner Mongolia Municipality, China, 010018

Greenhouse temperature system is a system featuring big time lag and huge inertial. Its typical control methods generally fail to achieve good control effect. Therefore, based on the fuzzy PID control method, this paper conducts real-time adjustment of PID parameters through the temperature difference and the temperature deviation variation rate. The numerical simulation result with MATLAB Simulink suggests that to control greenhouse temperature based on the fuzzy PID control method can achieve great control effect. The controller designed is characterized with fast dynamic response good robustness, high stability precision, low overshoot, and strong anti-jamming capability.