Energy-saving optimization method for coordinated control system of ultra-supercritical unit based on improved multi-target snake swarm optimization algorithm

The invention discloses an energy-saving optimization method for an ultra-supercritical unit coordinated control system based on an improved multi-target snake swarm optimization algorithm, which is used for realizing energy-saving optimization operation of a unit by considering the operation safety and economy of the unit under the condition of keeping the quick tracking capability of the unit. The method comprises the following steps: designing a control strategy of a coordinated control system according to characteristics of a controlled object of the coordinated control system of the ultra-supercritical unit, determining input and output variables of the system, and converting performance indexes required by the unit into three sub-objective functions; and considering range constraint conditions and rate constraint conditions of a control variable, a controlled variable and a decision variable in the model, displaying an optimization result in the form of a Pareto leading edge surface, and regarding a com