Header pressure coordination control system for thermal power plant boiler

The utility model relates to a header pressure coordination control system for a thermal power plant boiler, which comprises a main steam pressure controller, a fuel quantity controller, a steam drum pressure feed-forward control loop and a main steam flow rate feed-forward control loop, and is characterized by also comprising a header pressure coordination and strategy controller, wherein the output of the header pressure coordination and strategy controller is respectively connected with the constant value input end of the main steam pressure controller and the switching end of the fuel quantity controller, the fuel quantity controller comprises internal controllers C1, C2, C3 and C4, coordinates and determines the input value of the switching end of the fuel quantity controller according to the header pressure, different controllers arranged inside the fuel quantity controller are invoked for carrying out the fuel quantity regulation control operation, and then, the result is output to a boiler powder supp