Nuclear power involvement grid peak shaving judging method based on grid peak shaving capacity balancing

Abstract

The invention discloses a nuclear power involvement grid peak shaving judging method based on grid peak shaving capacity balancing. The method is based on operation data of a system and the characteristic quantity of the system is extracted. The characteristic quantity comprises a unit involvement grid peak shaving sequence, different peak shaving means force outputting conditions, the adjustable capacity, the load level of the grid and the like. The peak shaving capacity conditions which have peak shaving priority over all peak shaving means of a nuclear power unit are calculated and whether the peak shaving capacity conditions meet the requirements of the grid or not is judged. The requirements for the mode of the nuclear power involvement grid and the peak shaving depth are determined. Finally, the nuclear power involvement grid peak shaving depth range is determined by combining with nuclear power self power adjusting constraints. By combining with actual requirements of the grid and according to the peak shaving priority, nuclear power is brought into grid peak shaving. Factors such as grid economy, safety, reliability and the like are considered and the peak shaving pressure of the grid is relieved.

Description

technical field [0001] The invention belongs to the field of power systems, and in particular relates to a method for judging nuclear power's participation in power grid peak regulation based on power grid peak regulation capacity balance. Background technique [0002] It is predicted that in 2020, my country's nuclear power installed capacity will exceed 75 million kilowatts, and the power generation will reach 8%; The ratio continues to increase, and the pressure on the peak-shaving operation of the power grid is increasing day by day. In addition, with the changes in the relationship between supply and demand in my country's electricity market, the characteristics of electricity loads are gradually changing, the peak-to-valley difference of the power grid continues to expand, and the pressure on power grid peak regulation also increases. Some power grids receive more and more power from outside regions year by year, and the peak-shaving capacity of power from other regions...

AI Technical Summary

Problems solved by technology

In addition, with the changes in the relationship between supply and demand in my country's electricity market, the characteristics of electricity loads are gradually changing, the peak-to-valley difference of the power grid continues to expand, and the pressure on power grid peak regulation also increases. Some power grids receive more power from outside regions year by year, and the peak-shaving capacity of power from other regions is limited, which intensifies the peak-shaving pressure on the power grid

Therefore, with the rapid growth of electricity consumption in the whole society and the continuous expansion of the peak-to-valley difference of the power grid, the pressure on the peak regulation of the system will further intensify.

Images