A "two reservoirs - two stations" system water resource optimization scheduling method for river and lake replenishment

Abstract

The invention belongs to the technical field of water resource optimization allocation in irrigation districts, and specifically relates to a water resource optimization dispatching method for a "two reservoirs-two stations" system for replenishing water in rivers and lakes. Relevant data required for calculation; (2) System decomposition, decomposing the "two reservoirs - two stations" system water resources optimal dispatching model into two subsystems, the high reservoir and its replenishment pumping station system and the low reservoir and its replenishment pumping station system. Resource optimization scheduling model; (3) Subsystem optimization; (4) System coordination, and finally obtain the optimal scheduling plan of the "two databases and two stations" system. The present invention establishes a corresponding mathematical model for optimal scheduling of water resources, adopts dynamic programming to solve the problem on the basis of the decomposition and coordination method, and can obtain the minimum water shortage in the water receiving area, the corresponding optimal water supply of each reservoir, and the water discarded in a certain water supply period process, as well as the water pumping process of each pumping station, to solve the seasonal water shortage of the "two reservoirs - two stations" system and improve the utilization rate of water resources.

Description

technical field [0001] The invention relates to a water resource optimal dispatching method of a "two reservoirs-two stations" system for replenishing water in rivers and lakes, and belongs to the technical field of optimal allocation of water resources in irrigation areas. Background technique [0002] At present, due to the uneven distribution of water resources in time and space, the economic and social development of many regions has been restricted. The hilly and mountainous areas in the southeastern coastal areas are in the subtropical or temperate monsoon climate zone, and the runoff is concentrated during the flood season, which often causes flood disasters; the drought and no rain in other periods will lead to difficulties in agricultural water use. In order to deal with the uneven distribution of water resources over time, the local working people built reservoirs, ponds and weirs and other water storage facilities to collect and store rainwater during the flood se...

AI Technical Summary

Problems solved by technology

However, there are still some high-lying reservoirs or ponds due to their small catchment area and no transit water replenishment. When there is a water shortage during the dispatching period, it is necessary to divert water from other large and medium-sized reservoirs to supplement the reservoir.

[0003] The "two reservoirs-two stations" water resource system for replenishing water in rivers and lakes is a typical irrigation system in southern hilly areas. Although the water source conditions are sufficient, the water resources within the system cannot be allocated reasonably due to the lack of a unified and reliable joint operation mechanism. , leading to the contradiction of coexistence of water abandonment, water shortage, and water replenishment

Images