本文在全面分析了循環流化床燃燒常規控制方案的基礎上，結合我國循環流化床鍋爐結構的實際，對它的燃燒控制系統提出了一種新的控制方法。首先，設置主氣流量——給煤量關系曲線及總風量——給煤量關系曲線在線學習單元，在線改變曲線拐點坐標，以適應由于燃料熱值變化給控制帶來的影響。其次，提出以主氣流量——給煤量關系曲線為主，以主汽壓力，主汽流量模糊控制器為輔的燃料給定值設定方案，在大大提高了控制系統投運率的同時，提高了鍋爐的效率。以上控制方案經實踐證明控制效果良好。
關鍵詞：循環流化床模糊控制 在線學習過程控制
Abstract：This Paper presents a new control method based on analyzed the conventional control strategy of CFB boiler combustion system. First, it sets steam flux— fuel supply relation curve and air flux—fuel supply relation curve online study unit which change the curve inflexion to adapt to the influence by the change of fuel supply. Second, the obtain of fuel supply set point enhances the run ratio of the control system and the efficiency of the boiler use of steam flux ----fuel supply relation curve as the primary controller and steam pressure, steam flux fuzzy controller as the secondary controller. The control strategy was proved to have a good effect in practice.
Key words：CFB boiler, Fuzzy control, Study online, Process control