工業(yè)鍋爐汽包水位模糊自適應(yīng)PID 控制系統(tǒng)

鍋爐汽包水位控制系統(tǒng)是火力發(fā)電廠中的一個重要的熱工控制系統(tǒng),汽包水位的控制大多采用常規(guī)PID 控制方式,由于其控制參數(shù)是固定不變的,不能進(jìn)行在線調(diào)整,其控制效果往往難以滿足要求。將模糊控制的方法應(yīng)用到工業(yè)鍋爐PID 控制系統(tǒng)的參數(shù)調(diào)節(jié)中去,實現(xiàn)了PID 參數(shù)的自適應(yīng)調(diào)節(jié)。這種方法已經(jīng)運(yùn)用到蘇鋼3 號爐的控制系統(tǒng)中,取得了良好的效果。
　　關(guān)鍵詞:能源與動力工程;工業(yè)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