Medium-and-long-term electricity market safety checking and model establishing method and equipment

Abstract

The invention discloses a medium-and-long-term electricity market safety checking and model establishing method, device and equipment. The method comprises the steps of obtaining a load prediction deviation; obtaining a predicted completion rate deviation; establishing a target optimization function according to the obtained load prediction deviation and prediction completion rate deviation; constructing a constraint item; and establishing a medium-and-long-term electricity market safety check model according to the target optimization function and the constraint term. According to the schemeof the invention, since load prediction deviation is the most important factor causing transaction completion rate deviation, so the influence of the load prediction deviation is considered. The target optimization function is established according to the load prediction deviation and the prediction completion rate deviation, the medium-and-long-term power market safety check model is establishedin combination with the constraint term, safety check is performed based on the model, and the safety check effect can be improved. The method is clear in physical concept, is closely combined with the current security check and transaction execution business, and has a significant effect on improving the feasibility of medium and long term power market security check.

Description

Technical field [0001] This application relates to the cross-technology field of power system dispatching operation and power market, and in particular to a method and equipment for medium and long-term power market safety verification and model building. Background technique [0002] The safety check of the medium and long-term power market is the focus of research in the medium and long-term power market in my country. The object of the check is the feasibility of the electricity transaction between the generator and the consumer in the medium and long-term power market. Constraints such as power balance to determine whether the results of mid- and long-term power market transactions meet actual operating requirements. [0003] At present, the medium and long-term power market security check is mainly analyzed by constructing a monthly or annual Security-Constrained Unit Commitment (SCUC) model. In this model, the expected execution deviation of the unit is taken as the optimizat...

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Problems solved by technology

[0005] However, since the current market settlement is based on "monthly" as the basic unit, although the operation mode is dynamically adjusted in actual operation, if there is a large deviation in the second half of the month, it is often difficult for the dispatching agency to respond in a timely manner due to factors such as the number of units starting and stopping. The change requirements of boundary data lead to deviations in the transaction completion rate of power generation companies, and the security check effect is not good

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