医疗卫生装备2012，Vol.33Issue(1)：10-12,3.
模糊-PI控制在血液透析机温度控制中的应用
Application of Fuzzy-PI Control in Temperature Control System of Hemodialysis Machine
摘要
Abstract
Objective To design a temperature control system for hemodialysis machine. Methods The method combining fuzzy control algorithm and PI control algorithm was put forward, in which fuzzy control algorithm was applied when temperature error was great while PI control algorithm was applied when temperature error was minor to adjust the duly ratio of PWM for regulating the power of heating rod, realizing the temperature control of hemodialysis machine. Results The overshoot of temperature system was 0.5%, the steady-state error was ±0.2℃, and adjusting time was about 2 minutes. Conclusion This method has fast response speed, small overshoots and high steady precision, with good dynamic performance and stability, which can realize precise control of the dialysate temperature. [Chinese Medical Equipment Journal, 2011,33(1): 10-12]关键词
血液透析机/模糊PI控制/Pt100/PWMKey words
hemodialysis machine/ Fuzzy PI control/ Pt100/ PWM分类
信息技术与安全科学引用本文复制引用
刘致滨,宋文晓,杨晶娟,朱懿恒,卢广文..模糊-PI控制在血液透析机温度控制中的应用[J].医疗卫生装备,2012,33(1):10-12,3.基金项目
2010年珠海市产学研合作专项资金(No.2010A0501006) （No.2010A0501006）
