Steam turbine power generation system control method and device based on random screening optimization algorithm

The invention discloses a steam turbine power generation system control method and device based on a random screening optimization algorithm, and the method comprises the steps: obtaining the set interval range, the number of iterations and the random step size of each control parameter for carrying out the active-disturbance-rejection control of a steam turbine power generation system, and the number of required groups of the control parameters; randomly selecting a plurality of random control parameter groups in a set interval range of each control parameter according to the number of iterations and the random step size; a transfer function of the steam turbine power generation system is obtained, and system stability margins corresponding to the random control parameter sets are analyzed based on the transfer function; and according to the system stability margin, determining an excellent control parameter group of the required group number, and according to the excellent control parameter group, executing