Novel primary frequency-modulation compensation control method of unit thermal generator set

The invention discloses a novel primary frequency-modulation compensation control method of a unit thermal generator set, comprising the following steps of: 1) adding upper and lower limit values according to an instantaneous generation load instruction and primary frequency modulation of the generator set; automatically calculating a primary frequency-modulation theoretical compensation load limited amplitude according to an algorithm module and setting high and low limited amplitudes of an H/L amplitude limiting module; 2) calculating a primary frequency-modulation theoretical compensation load value through a set function F1(x) according to a power grid operation frequency fluctuation difference value or a turbine rotating fluctuation value; and limiting a primary frequency-modulation compensation instruction of the generator set in a range from minus delta P to delta P through guaranteeing that the frequency modulation motion does not exceed the normal adjusting range of the generator set through the H/L amplitude limiting module; and 3) revising primary frequency-modulation compensation and operating a real-time adjusting-grade pressure, a main steam pressure and a main air temperature parameter according to the generator set; and calculating and revising a primary frequency-modulation instruction through a F2(x) to be output. The novel primary frequency-modulation compensation control method of the unit thermal generator set guarantees that the primary frequency-modulation motion of the generator set meets the design requirements and stabilizes a power supply frequency of a power grid.