Pumped storage and wind-fire-nuclear deep peak shaving trading mechanism designing method

Abstract

The invention discloses a pumped storage and wind-fire-nuclear deep peak shaving trading mechanism designing method. The method establishes an income model of each transaction entity on the basis of the cost-income method, points out that each transaction entity has the enthusiasm to participate in the bidding by analyzing the income of each transaction entity, and clarifies the feasibility of thetrading mechanism. Further, the bidding ability of each power source is analyzed, and the wind power bidding ability is the strongest, followed by the nuclear power unit, and finally the unit with low coal consumption rate and strong peak shaving ability in the thermal power unit. The trading mechanism can optimize allocation of power generation resources in the system. At the same time, the long-term implementation of the trading mechanism can make the system more economical. Therefore, the designing method effectively dredges the pumping loss of the pumped storage power station, can improvethe utilization rate of the pumped storage power station, and can promote long-term healthy development of the pumped storage power station; and the designing method can stimulate thermal power, windpower and nuclear power to actively participate in deep peak shaving to alleviate the current peaking situation.

Description

technical field [0001] The invention relates to the field of electric power system control, in particular to a design method of a deep peak-shaving trading mechanism for pumped storage and wind-fired nuclear power. Background technique [0002] With the changes in power supply structure and social power consumption structure, the current situation of power grid peak regulation is becoming increasingly severe. The thermal power unit has undertaken the main peak-shaving task, the curtailment rate of wind power remains high, and the utilization hours of nuclear power equipment that undertakes the base load has also begun to decline. Under the increasingly severe peak shaving situation, pumped storage power plants have attracted much attention due to their excellent peak shaving performance. According to the plan, by 2025, the total installed capacity of pumped storage power stations in the country will reach about 100 million kilowatts, accounting for about 4% of the total ins...

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Problems solved by technology

[0006] Under the current peak shaving situation, on the one hand, the utilization rate of pumped storage is low, which fails to fully play the role of peak shaving and valley filling; on the other hand, with the large-scale grid connection of new energy and nuclear power, wind and nuclear abandonment occurs from time to time. The utilization hours of thermal power units continue to decline, and the peak shaving situation is extremely severe, which seriously hinders the process of power structure optimization in my country

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