A common water supply task assignment method for complex reservoir groups

Abstract

The present invention discloses a complicated reservoir group common water supply task distribution method. The method comprises the following steps of 1 according to the topology structure of a reservoir group and the distribution condition of a common water supply objective, hierarchically establishing a virtual aggregated reservoir, and drawing a corresponding joint scheduling graph; 2 determining a common water supply task distribution strategy aiming at the parallel and series two topology structures separately; 3 establishing an objective function of a joint water supply scheduling model; 4 adopting a multi-objective evolution algorithm to optimize the objective function of the joint water supply scheduling model, thereby obtain a relative optimal joint scheduling rule. The complicated reservoir group common water supply task distribution method of the present invention can realize the complicated reservoir group joint water supply uniform scheduling, can capture the space-time difference of the reservoir runoffs, fully plays the reservoir's capacity compensation and hydrology compensation roles of the reservoir group, enables the optimization configuration capability of a system to the water resource to be improved furthest, is suitable for being applied to the complicated reservoir group joint scheduling, and can be widely used for the complicated reservoir group common water supply task distribution.

Description

technical field [0001] The invention belongs to the technical field of joint dispatching of reservoir groups, and in particular relates to a method for allocating common water supply tasks of complex reservoir groups. Background technique [0002] my country's large-scale river basins have formed or are forming an overall layout of joint development and utilization of reservoir groups. Optimal scheduling of joint water supply for reservoir groups is a nonlinear multi-objective optimization problem with complex constraints. is increasing, the difficulty of realizing its optimal scheduling is also increasing. At present, the method of virtualizing reservoir groups as aggregated reservoirs to make water supply decisions is regarded as one of the best methods for joint scheduling of reservoir groups. Although this method can comprehensively consider the water storage status of the reservoir group, accurately locate the water supply capacity of the system, and more objectively de...

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Problems solved by technology

However, because the existing compensation adjustment method does not consider its own water supply tasks, there are often situations of insufficient or overcompensation, which cannot be reasonably scheduled to ensure water supply.

[0005] In addition, since the allocation of common water supply tasks involves multiple objectives such as the water supply objectives of the entire system, the water supply objectives of member reservoirs, and the water supply objectives of each water user, the traditional index weight assignment method has certain limitations. It only converts multiple objectives into a single goals, unable to reflect the competition and synergy among various goals [Li-Chiu Chang, Fi-JohnChang. Journal of Hydrology, 2009, 1(2): 12-20.], [Ding Shengxiang, Dong Zengchuan, Wang Dezhi, etc. Water Science Progress, 2008,19(5):679-684.]

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