Reservoir Scheduling Method Based on Orthogonal Successive Approximation Algorithm

Abstract

The invention relates to the field of reservoir scheduling and discloses an orthogonal successive approximation algorithm based reservoir scheduling method. The reservoir scheduling method includes the steps: firstly, determining number of reservoirs, and adopting the orthogonal successive approximation algorithm for calculation if one reservoir is available; otherwise, setting scattering-state step length and scattering number and selecting a proper orthogonal table according to the number of the reservoirs and number of scattering states; determining initial reservoir scheduling trajectories involved in optimal calculation; resolving the original reservoir optimal scheduling problem into multiple subproblems by the successive approximation algorithm; calculating each state combination and performing statistic analysis by a penalty function method according to reservoir condition combination evenly distributed in a constraint space of an orthogonal table structure, and rapidly acquiring the optimal state combination of the subproblems; performing the optimal calculation on the subproblems in sequence, and successively approximating an optimal solution of the original problem. By the application of the reservoir scheduling method, calculation dimensions of the reservoir optimal scheduling problems can be lowered, calculation efficiency can be improved, and the reservoir scheduling method is applicable to a single-reservoir optimal scheduling and group-reservoir optimal scheduling as well as water resource optimal allocation.

Description

technical field [0001] The invention relates to a reservoir (group) scheduling method based on an orthogonal successive approximation algorithm, and belongs to the technical field of water resources and reservoir (group) optimization scheduling. technical background [0002] Reservoir (group) optimal dispatching seeks reasonable and feasible dispatching plans and programs to guide the operation of reservoirs (groups) under the principle of dispatching, which can increase economic benefits by 1% to 7% compared with conventional dispatching. Therefore, it is very necessary to carry out joint optimization of reservoirs and groups Research on scheduling problems. The long-term operation of reservoirs (groups) generally adopts the maximum power generation model, which is mathematically described as the process of the beginning and end water levels and inflow flow of each reservoir within the known operation period, comprehensively considering various constraints such as water lev...

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Problems solved by technology

In recent years, scholars at home and abroad have introduced the orthogonal test design method into the intelligent optimization algorithm to deal with various function optimization problems, but there is no report on the combination of the orthogonal test design and the successive approximation algorithm.

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