Cascade hydropower station short-term power generation plan making method considering peak regulation depth

Abstract

The invention discloses a method for making a short-term power generation plan of a cascade hydropower station considering peak regulation depth, and relates to the field of short-term optimal dispatching of cascade hydropower stations in the power industry, and the method comprises the following steps: 1, determining a short-term power generation plan making thought considering the peak regulation depth; 2, respectively building a flood season model, a dry season model and a flat water season model according to the characteristics of different peak regulation amplitudes and abandoned water amounts in different periods, and taking peak regulation at different depths and abandoned water amount reduction as targets; model constraint conditions are determined by combining a cascade energy storage control strategy of a key time node in an actual scheduling process and the peak capacity of a cascade power station meeting the power utilization requirement of a power grid, and constraints include water balance, reservoir water level constraints, end water level control, peak regulation depth constraints, power generation flow constraints, ex-reservoir flow constraints, power station output constraints and the like; determining a model solving algorithm; and step 3, performing short-term optimization scheduling solution by using a heuristic algorithm.

Description

technical field [0001] The invention relates to the field of short-term optimal scheduling of cascade hydropower stations in the electric power industry, in particular to a method for making short-term power generation plans for cascade hydropower stations. Background technique [0002] The short-term power generation plan for cascade hydropower stations is based on the day as the dispatch cycle, and the hour or 15 minutes as the dispatch period. According to the actual situation such as water inflow forecast, unit maintenance arrangement, power grid peak regulation, etc., the power generation plan of each cascade power station on the subsequent date is arranged and reported to the power grid. The process of approval execution. For the basins that are submitted to the power grid for approval by the cascade master plan, the power generation plan of the entire cascade should match the power demand of the power grid as much as possible, with more power generation during the pea...

AI Technical Summary

Problems solved by technology

[0005] The present invention overcomes the problem of insufficient practicability of the optimized scheduling mode and the conventional scheduling mode in making short-term power generation plans for cascade hydropower stations, and provides a method for making short-term power generation plans for cascade hydropower stations that can consider the depth of peak regulation

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