Garbage incinerator denitration control method based on multi-model weighted prediction

The invention provides a garbage incinerator denitration control method based on multi-model weighted prediction. The garbage incinerator denitration control method comprises the steps that characteristic variables are determined according to the correlation degree of operating parameters of a garbage incinerator and NOx concentration emission; characteristic variables are determined according to the correlation degree of the operation parameters after time translation and NOx concentration emission; taking the characteristic variables as training samples, and establishing a plurality of prediction sub-models in combination with a least square method; combining the prediction sub-models to obtain a prediction combination model; according to the multiple prediction combination models, NOx concentration emission at multiple moments in the future is predicted, so that the ammonia spraying flow at each moment is obtained; and taking the ammonia spraying flow at each moment as a PID control set value of the ammoni