Primary frequency modulation parameter adjusting method and system based on model simulation and medium

The invention discloses a primary frequency modulation parameter adjusting method and system based on model simulation and a medium, and the method comprises the steps: determining a to-be-adjusted primary frequency modulation parameter in a pre-established control system model, determining an empirical value of the primary frequency modulation parameter as a current set value of the primary frequency modulation parameter, and assigning the current set value to the control system model, performing primary frequency modulation simulation in combination with a pre-established main steam pressure model and a steam turbine model to obtain the total number of times of primary frequency modulation actions and the number of times of qualified primary frequency modulation, calculating a primary frequency modulation qualification rate according to the total number of times of primary frequency modulation actions and the number of times of qualified primary frequency modulation, and judging whether the requirements are