Hot rolling process thickness loop tension optimization control method based on performance evaluation

The invention provides a hot rolling process thickness loop tension optimization control method based on performance evaluation, and relates to the technical field of hot rolling, the method comprises the following steps: firstly establishing a hot rolling thickness-loop-tension state-space equation, and simulating a thickness-loop-tension control system of a hot rolling production line based on the state-space equation and hot rolling data; and performing performance evaluation on the thickness-loop-tension control system in real time by adopting a Hurst index, if the control performance of the control system is found to be poor, optimizing control parameters of the control system by adopting a crayfish optimization algorithm, and controlling the hot rolling production process by adopting the optimized control parameters. According to the hot rolling process thickness-loop-tension optimization control method based on performance evaluation, performance evaluation of a thickness-loop-tension complex control s