Decision-making method and device for combined power generation dispatching scheme of cascade hydropower station group

Abstract

The invention discloses a decision-making method and device for a combined power generation dispatching scheme of a cascade hydropower station group. The method comprises the following steps: firstly, obtaining a decision-making candidate scheme set and generating an original decision-making matrix; and then carrying out normalization processing on the original decision matrix, and replacing the original decision matrix with a relative optimum degree matrix; according to the relative membership degree matrix, determining the weight of each attribute index, the Vague value of the relative membership degree relative to the corresponding attribute index of the positive ideal scheme and the Vague value of the relative membership degree relative to the corresponding attribute index of the negative ideal scheme, and further determining the comprehensive Vague value of the decision candidate scheme relative to the ideal scheme; and finally determining a final scheme of combined power generation dispatching of the drainage basin cascade hydropower station group. According to the method and device, the Vague value and the attribute objective weight information are comprehensively considered, and the close degree of the drainage basin cascade hydropower station group combined power generation scheduling scheme relative to an ideal scheme is quantitatively described, so that the robustness and the credibility of the final scheme are improved.

Description

technical field [0001] The present application relates to the technical field of electric power systems, and in particular to a decision-making method and device for a joint generation scheduling scheme of cascade hydropower station groups. Background technique [0002] The operation of cascade hydropower stations in the basin is not only affected by rain and water conditions, but also by the power balance of the power system, peak regulation, and frequency regulation. Attribute indicators such as the maximum discharge flow can give full play to the comprehensive benefits of cascade hydropower station groups in the basin. [0003] In order to maximize the power generation benefits of cascade hydropower station groups in the basin without increasing additional flood control risks, it is necessary to balance and coordinate the competition and conflict among various attribute indicators, and reasonably arrange the water level and storage and discharge process of cascade hydropo...

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Problems solved by technology

[0005] This application discloses a decision-making method and device for a cascade hydropower station group joint power generation dispatching scheme, which is used to solve the mutual constraints and incommensurability between various attribute indicators and value functions in the prior art, and the decision-making process has strong subjectivity And uncertainties make it difficult to mine the information transmitted by the program set itself when using traditional decision-making methods to deal with such problems, resulting in technical problems of poor robustness and low credibility of decision-making results

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