鍋爐汽包水位控制系統是火力發電廠中的一個重要的熱工控制系統,汽包水位的控制大多采用常規PID 控制方式,由于其控制參數是固定不變的,不能進行在線調整,其控制效果往往難以滿足要求。將模糊控制的方法應用到工業鍋爐PID 控制系統的參數調節中去,實現了PID 參數的自適應調節。這種方法已經運用到蘇鋼3 號爐的控制系統中,取得了良好的效果。
　　關鍵詞:能源與動力工程;工業鍋爐;汽包;水位;PID;模糊控制

Abstract : Boiler drum water level control systems belong to important thermal control systems of fossil fired power plants. Currently , most drum water levels are controlled by conventional PID methods. Because their control parameters are fixed , without possibility of on2line adjustment , it often happens that their control effect can hardly meet requirement. A way of effectuating self2adjustment of PID control system parameters of industrial boilers , by making use of a fuzzy control algorithm is being presented. This method has already successfully been applied to Sugang’s boiler No. 3.
Keywords : energy and power engineering ; industrial boiler ; steam drum; water level ; PID; fuzzy control