基于模糊PID控制的半导体制冷片温控系统的研制.pdf

∀ 54∀ 2008 6 基于模糊 PID控制的 半导体制冷片温控系统的研制 肖伟平, 黄绍平 (湖南工程学院, 湖南 湘潭 411101) :设计了采用模糊 PID控制算法的半导体制冷片温度控制系统, 该系统可以在 有操作者 干预的情况下根据控制系统的实际响应情况, 自动实现对PID 参数调整, 控制 PWM 输出波形的占 空比,使温度控制器的工作温度保持恒定模糊 PID控制将模糊控制与常规 PID控制结合起来, 兼 顾两者的优点, 改善了控制系统的性能 :半导体制冷片; PWM;模糊 PID控制 : TP273 : A : 1000- 0682( 2008)06- 0054- 03 The developm ent of a temperature control system for a sem iconductor chilling plate based on the fuzzy PID control X IAO W eiping, H ANG Shaoping (H unan In sti tu te of E ng ineering, H unan X iang tan 411101, C hina ) Abstract: A temperature control system is designed for sem iconductor chilling plate based on the fuzzy PID controlalgorithm. In this system, thePID param eters can be adjusted automatically according to the actual response of the control system w ithout any manual intervention, and meanwhile the cycle of PWM outputwaveform can be controlled, thuskeeping the controllerworking at a constant temperature. As a result, the controlsystem is mi proved by using both fuzzy control and PID control. K ey words: sem iconductor chilling plate; PWM; fuzzy PID control 4~ 30 V 1 1 MC68HC908GP32 , , , , , , , ,, AD AD590 , IC, , : 1 , 1 A - 55~ 150 1 : 2008- 01- 09 AD590I = ( 273+ T ) A (T : ( 1959- ), , , ), V2 ( 273+ T ) A ! 10 k = ( 2. 73+ T / 100) V 2008 6