Generation method of power generation scheme to prevent sustained damage of hydropower station groups

Abstract

A generation method of a power generation scheme for preventing sustained damage of a hydropower station group includes the steps of 1, determining an optimization target and constraint conditions and establishing a statin optimizing and scheduling module; 2, considering uncertainty of hydrological forecasting and conversion of forecasting runoff; 3, calculating potential output of each phase; 4, determining a pattern of power generation constraint rules; 5, acquiring optimized power generation constraint rules and a power generation scheme set by means of an optimization algorithm; and 6, establishing an evaluation index system to evaluate optimal scheduling results. The generation method has the advantages that sustainability of the power generation process is ensured, a minimum of damage is ensured, and the simple and universal power generation constraint scheduling rules are provided to guide optimization of hydropower stations; the influence of hydrological forecasting errors upon scheduling results is fully considered, the power generation constraint scheduling rules are optimized by means of forms of energy, and more accurate decision basis is provided for decision makers.

Description

technical field [0001] The invention relates to the technical field of reservoir dispatching, in particular to a method for generating reservoir dispatching plans aimed at ensuring the continuity of power generation and avoiding the continuity of power generation damage. Background technique [0002] The optimal dispatching of hydropower station groups redistributes water resources in time and space through the hydraulic power and storage capacity compensation of the reservoir group, so as to achieve the purpose of promoting benefits and eliminating harm. Usually, due to the uncertainty of runoff and uneven distribution within a year, the power generation of hydropower stations is often damaged to a certain extent (mainly reflected in the guaranteed rate of power generation of hydropower stations). At present, the scheduling rules used for the operation of hydropower stations (groups) usually include: reservoir scheduling diagrams, neural networks, discriminant methods, etc....

AI Technical Summary

Problems solved by technology

[0004] The problems in the current method are: ①The scheduling diagram can usually only be used for a single reservoir, and it is not convenient to deal with complex cascade reservoir group scheduling problems

②The determination of neural network structure parameters still lacks a systematic method, usually by trial and error, and the algorithm has the disadvantage of slow learning speed and easy to fall into local minimum

③When the water storage and supply discriminant method is used for dispatching, only the distribution of output is considered but not the distribution of water volume. It only focuses on the optimization within a time period, and does not consider the impact of operations in this time period on subsequent periods. Cascade system abandonment occurs. water is likely

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