Power spot market clearing method and device based on wind power plant and storage medium

Abstract

The invention discloses a power spot market clearing method and device based on a wind power plant and a computer readable storage medium. The method comprises the following steps: according to pre-obtained power data information and a pre-built safety constraint unit combination model, a thermal power unit startup combination and electric field overall output plan is obtained; and the thermal power unit startup combination and electric field overall output plan is analyzed according to a pre-built safety constraint economic dispatch model, so that corresponding day-ahead thermal power unit output plan and wind power plant output plan are obtained, wherein the safety constraint unit combination model comprises a first objective function which minimizes the electricity purchase cost and a safety constraint unit combination constraint condition, and the safety constraint economic dispatch model comprises a second objective function which minimizes the electricity purchase cost and a safety constraint economic dispatch constraint condition. According to the method, the wind power plant can participate in the spot market, and the output of the wind power plant is predicted under the condition that the social welfare is maximized.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of electric power market, and in particular, relate to a method, device and computer-readable storage medium for clearing the electric power spot market based on wind farms. Background technique [0002] With the deepening of the construction of the power spot market, the scheme design of wind farms participating in the power spot market is gradually put on the agenda. Under the environment of the electricity market, the power generation of wind farms will gradually change from the traditional method of full purchase by the grid with a fixed on-grid electricity price to the method of wind farms participating in the centralized quotation of the electricity spot market and settling at a unified clearing price like traditional units. Because of its controllable power generation output, traditional thermal power units can declare 3-segment volume-price curves before the day, and arrange...

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Problems solved by technology

[0003] If the wind farm declares the volume-price curve in the same way as the traditional generator set, there may be wind farms that cannot accurately predict their own output in the day-ahead, and need to bear the risk of settlement of the difference between the day-ahead and real-time, and affect the real-time balance of the power system. The balance scheduling of the increased difficulty

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