Abstract: The output of new energy is determined by its natural endowment. With the gradual increase of the adjustment range of the high proportional new energy grid operation mode under the constraint of power balance, there exists a continuous rise in the mismatch risks of the frequency correction control method of the traditional fixed strategy. By establishing a typical system, the description of the power grid operation scene domain for studying the frequency correction control is given, and the power grid operation scene domain for any round of adaptation of the frequency correction control system is calculated. It is proposed to take the adjustable range of the control variable as an index to evaluate any round of the adaptability, and to use the minimum adjustable range of multiple rounds to evaluate the adaptability of the frequency correction control system. The analysis model is built by using the actual power grid parameters, and the limit new energy access proportion adapted to the frequency correction control system is calculated. Traditional frequency correction control methods are difficult to adapt to scenarios with a high proportion of new energy, and there is an urgent need for new control methods.