Risk benefit analysis method and system for cascade power station group scheduling, terminal and medium

Abstract

The invention discloses a risk-benefit analysis method and system for cascade power station group scheduling, a terminal and a medium, and relates to the technical field of power system scheduling, and the key points of the technical scheme are as follows: determining the risk category of a target power station, and determining the total weight coefficient of a risk item and a benefit item; performing importance degree sorting on the risk indexes and the benefit indexes, and distributing weight coefficients for the indexes of the risk items and the benefit items from the corresponding total weight coefficients in combination with an analytic hierarchy process and importance degree sorting; respectively obtaining a risk item comprehensive score and a benefit item comprehensive score, and summing to obtain a total scheduling comprehensive score of the target power station; and performing weighted average calculation according to the annual output of each target power station to obtain a comprehensive evaluation result of cascade power station group scheduling. When the cascade power station group is constructed, the importance degree between the power stations is considered, the comprehensive risk benefit evaluation of the cascade power station group is finally obtained, and powerful support can be effectively provided for scheduling historical evaluation and scheduling strategy optimization of the cascade power station group.

Description

Technical field [0001] The present invention involves the field of power system dispatching technology. More specifically, it involves the risk -benefit analysis method, system, terminal and medium of step -level power stations. Background technique [0002] Short -term step power station group scheduling is an upstream and downstream hydropower station in the basin, which is associated with each other. By coordinating and cooperating with each other to achieve the scheduling behavior of the power supply in the most economical production, the stall power station scheduling in the short term requires the dispatch strategy to accurately accurately the dispatch strategy. By a short time, for example, within a single day, the micro -environment within the decision -making period needs to be fully considered, and the micro -relationships of upstream and downstream power stations, ignore or simplify some influencing factors, may lead to non -efficient or risk of dispatching strategies....

AI Technical Summary

Problems solved by technology

In the prior art, optimization algorithms are used to optimize the power generation potential under the same external conditions, and then compare the actual power generation to measure the pros and cons of the actual dispatch strategy; however, the scope of its dispatch evaluation is single and based on specific business Starting from a specific business scenario, a specific business scenario often requires scheduling to complete a single scheduling task. Therefore, the rating system is often defined around this single goal, ignoring the risks faced by achieving this goal

In addition, there is a method for evaluating and analyzing the multi-objective dispatching of cascade power stations; however, it lacks the scheduling evaluation of cascade power station groups as a whole. In practice, cascade power station groups composed of individual power stations have the individual characteristics of a single power station. It can be roughly regarded as a "virtual power station", and how to construct a cascade power station group scheduling evaluation analysis is also a problem that needs to be solved in actual work

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