Intelligent frequency conversion control method for circulating fan during tobacco leaf curing in ascending type bulk curing barn

The invention discloses an intelligent frequency conversion control method for a circulating fan during tobacco leaf curing in an ascending type bulk curing barn. After tobacco leaves are loaded intoa curing barn as required and begin to be cured, an intelligent variable-frequency regression equation is constructed according to the following ten conditions in sequence, and the intelligent variable-frequency regression equation is constructed according to changes of parameters such as the target dry-wet bulb temperature, the actual dry-wet bulb temperature and the upper and lower shed tobaccoleaf temperature difference set in each stage. According to the importance and contribution degree of the target dry bulb temperature difference (a), the upper and lower shed temperature difference (b) and the wet bulb temperature difference (c) in each baking stage to the tobacco leaf baking process, coefficient assignment is conducted, the coefficient range is 0-1, and beneficial guarantees areprovided for improving the