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【英文篇名】 Fuzzy-PI Controller based on PLC in multi-variable System of Temperature and Humidity 【作者中文名】 徐建; 张开平; 彭建兰; 【作者英文名】 Xu Jian Zhang Kaiping Peng Jianlan（The center of ordance test Hua Yin china; Huayin; 714200）; 【作者单位】 中国华阴兵器试验中心; 【文献出处】 制冷与空调(四川), Refrigeration nbsp; 期刊荣誉：ASPT来源刊 CJFD收录刊 【关键词】 模糊PI控制; 环境试验; PLC; 【英文关键词】 fuzzy-PI control; Environmental test; PLC; 【摘要】 针对温湿度强耦合、大惯性的特点,结合交变湿热环境模拟试验,介绍了一种交变湿热控制的新方法,采用温湿度强制解耦,单回路模糊在线自整定PI控制算法,并在西门子S7-300系列PLC上加以实现。通过应用可知,该方法具有超调小,调节迅速和上升时间短等特点,具有很好的鲁棒性。 【英文摘要】 In response to the temperature and humidity's features of highly-coupling and long-dead-time,According to the environmental test of the temperature and humidity multi-variable,this paper presents a new method to control temperature and humidity.The method combines peremptory discoupling and self-regulating fuzzy PI controller of single loop and PLC S7-300 is used as the control platform.Application result shows that this method has a feature of ideal characteristics of small overshoot,fast regulation and sh...