Method and device for dynamic load global optimization and energy-saving control of central air conditioner

The invention relates to a method and a device for dynamic load global optimization and energy-saving control of a central air conditioner. The method comprises the steps that the operation load of a target air conditioner is predicted according to a pre-established recurrent neural network model, and a first load prediction value is obtained; the operation load of the target air conditioner is predicted according to an environment data curve, and a second load prediction value is obtained; an initial load proportionality coefficient is set, and a target load prediction value of the target air conditioner is determined according to the initial load proportionality coefficient, the first load prediction value and the second load prediction value; an air conditioning system is optimized according to the target load predicted value, and optimization information of the air conditioning system is determined; and energy-saving control on the air conditioning system is carried out according to the optimization infor