Reverse regulator for preventing primary frequency modulation

The invention discloses a reverse regulator for preventing primary frequency modulation. The reverse regulator comprises an output loop, wherein a primary frequency modulation direction judgment loop, a primary frequency modulation action judgment loop and an AGC action judgment loop are connected with a unit target power selection and judgment loop, and the unit target power selection and judgment loop is connected with the output loop. According to the reverse regulator, the problem that a primary frequency modulation control system of a generator set cannot adapt to all working conditions in the production process caused by incomplete design due to the fact that a stable power network frequency is maintained by a primary frequency modulation technology in the prior art, the power requirement corresponding to change of the power network frequency is contrary to actual power change action of a primary frequency modulation action of the generator set, and the instability of the power network frequency is finally aggravated are solved; and the problem that the stability of the power network frequency of the power system is affected due to the fact that the power requirement corresponding to change of the power network frequency is contrary to actual power change action of the primary frequency modulation action of the generator set is solved.