CN-122022409-A - Water resource allocation method, device, equipment and medium for estuary area

CN122022409ACN 122022409 ACN122022409 ACN 122022409ACN-122022409-A

Abstract

The invention provides a water resource allocation method, device, equipment and medium for a estuary area, which relate to the technical field of hydraulic engineering and are used for determining the daily water intake flow of a water intake pump station in a target tide period based on the water intake flow of a river reach where the water intake pump station is located in the target tide period and the corresponding relation between the water intake flow and the water intake duration of the river reach, determining the daily water intake flow of the water intake pump station in each day in the target tide period based on the total water intake duration and the designed water intake flow, and determining the water resource allocation amount of each water user by adopting a water resource allocation model according to the daily water intake flow of each day and the water demand data of each water user so as to accurately optimize the water resource allocation amount of each water user and improve the accuracy of water supply guarantee rate calculation and the rationality of water resource allocation.

Inventors

YANG HUIHUI
LIU YUANXUN
LI YUANYUAN
CHEN GUANGCUN
HUANG FENG
WANG XIANPING
XIONG HANWEN
CHEN HAO

Assignees

中水珠江规划勘测设计有限公司

Dates

Publication Date: 20260512
Application Date: 20260414

Claims (10)

1. The water resource allocation method for the estuary area is characterized by comprising the following steps of: Acquiring water source data of a target area and water demand data of each user, wherein the water source data comprises designed water intake flow of a water intake pump station in the target area and reservoir capacity data of a water supply reservoir; Determining the total dilution time of the water intake pump station in the target tide period based on the inflow water flow of the river reach where the water intake pump station is positioned in the target tide period and the corresponding relation between the inflow water flow of the river reach and the dilution time; determining daily water intake flow of the water intake pump station in each day of the target tide period based on the total water intake duration and the designed water intake flow; and determining the water resource allocation amount of each user by adopting a water resource allocation model according to the daily water intake flow of each day and the water demand data of each user, wherein the water resource allocation model takes the minimum total water shortage of all users in the scheduling period as an objective function, and solves the objective function under a preset constraint condition.
2. The water resource allocation method of estuary areas according to claim 1, wherein the correspondence between the incoming water flow rate and the diluted time period of the estuary is obtained by calibrating the correlation between the incoming water flow rate of the estuary in the historical tide cycle and the total diluted time period in the corresponding tide cycle.
3. The water resource allocation method of estuary areas of claim 1, wherein determining daily water intake flow of the water intake pump station for each day in the target tide period based on the total dilution time period and the designed water intake flow comprises: Determining the daily light-taking time length of the water taking pump station in each day based on the total light-taking time length; Determining the daily dimming probability of each day according to the daily dimming time length of the water intake pump station; and obtaining daily water intake flow of each day based on the daily dilution probability of each day and the designed water intake flow.
4. The water resource allocation method of estuary areas of claim 3, wherein determining a daily fade period for the water intake pump station for each day based on the total fade period comprises: Acquiring a day-by-day light-taking time length distribution rule of the day-by-day light-taking time length in the rated target tide period, wherein the day-by-day light-taking time length distribution rule is obtained by calibrating based on historical hydrologic data of a river reach where the water intake pump station is positioned and corresponding historical day-by-day light-taking time length data; And according to the daily light-taking time length distribution rule, distributing the total light-taking time length in the target tide period to each day in the target tide period to obtain the daily light-taking time length of the water intake pump station in each day.
5. The method of water resource allocation in estuary areas of claim 4, wherein determining a daily fade period for the intake pump station for each day based on the total fade period further comprises: and distributing the total light-taking time length to each day in the target tide period according to the principle of alternately distributing the first day and the last day of the target tide period from the first day to the middle day, so as to obtain the light-taking time length of the water intake pump station in each day.
6. The water resource allocation method of estuary areas according to claim 1, wherein the water resource allocation model determines water resource allocation amounts of each user based on a preset Jiang Ku joint allocation rule, and the Jiang Ku joint allocation rule includes: when the daily water intake flow of the water intake pump station on the target day is greater than or equal to the water demand of a water user on the target day, supplying water to the water user according to the water demand of the water user, and supplementing the surplus water to the water supply reservoir until the water supply reservoir is full; When the daily water intake flow of the water intake pump station on the target day is smaller than the water demand of the water user on the target day, the daily water intake flow on the target day is fully supplied to the water user, and the insufficient part is supplemented by the water supply reservoir until the water supply reservoir is emptied to dead reservoir capacity.
7. The water resource allocation method for the estuary area according to claim 1, wherein the preset constraint conditions at least comprise water supply capacity constraint of a water supply project and operation water level constraint of a reservoir, the water supply capacity constraint comprises water lift constraint of the water intake pump station and overflow capacity constraint of a water delivery pipeline, and the operation water level constraint of the reservoir comprises operation water level of the reservoir in a scheduling period not lower than a dead water level and not higher than a normal water storage level.
8. The utility model provides a water resource allocation device in estuary area which characterized in that includes: the system comprises a data acquisition module, a data processing module and a data processing module, wherein the data acquisition module is used for acquiring water source data of a target area and water demand data of each user, and the water source data comprise designed water intake flow of a water intake pump station in the target area and reservoir capacity data of a water supply reservoir; The data determining module is used for determining the total dilution time length of the water intake pump station in the target tide period based on the incoming water flow of the river reach where the water intake pump station is positioned in the target tide period and the corresponding relation between the incoming water flow of the river reach and the dilution time length; The water resource allocation module is used for determining the water resource allocation amount of each water user by adopting a water resource allocation model according to the daily water intake flow of each day and the water demand data of each water user, wherein the water resource allocation model takes the minimum total water shortage amount of all the water users in the scheduling period as an objective function, and solves the objective function under a preset constraint condition.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the water resource allocation method of the estuary area of any one of claims 1 to 7 when the computer program is executed by the processor.
10. A computer readable storage medium storing computer instructions which when executed by a processor implement the water resource allocation method of estuary areas of any one of claims 1 to 7.

Description

Water resource allocation method, device, equipment and medium for estuary area Technical Field The invention relates to the technical field of hydraulic engineering, in particular to a water resource allocation method, a device, equipment and a medium for estuary areas. Background Along with the development of water resource allocation technology, a technology for ensuring water supply by jointly scheduling a local reservoir and a pump station of an external river aiming at estuary areas affected by salt tides is presented. In the prior art, when a water resource allocation scheme is formulated, the water taking capacity of a water taking pump station in the outer river is generally processed simply into a fixed value based on historical average data or a variable related to seasons, a combined dispatching model of a reservoir and the pump station aiming at guaranteeing water supply is constructed based on the fixed value or the variable related to seasons, and the model is solved to determine the water supply quantity of each user. However, the method has the problem of inaccurate depiction of the actual water taking capacity of the water taking pump station, and the problem of deviation of the actual extractable fresh water amount estimation of the pump station caused by the complicated dynamic influence of the water intake of the pump station on the day-by-day fresh water taking time period due to the fact that the accurate quantification of the salt tide is not achieved, so that the Jiang Ku joint adjustment scheme based on the deviation is not accurate enough in the water supply guarantee rate calculation result, and the scientific and reasonable distribution of water resources is difficult to realize under the influence of the salt tide. Disclosure of Invention In view of the above, the present invention aims to provide a water resource allocation method, device, equipment and medium for estuary areas, so as to accurately optimize the water resource allocation of each user, and improve the accuracy of water supply guarantee rate calculation and the rationality of water resource allocation. In a first aspect, the present application provides a water resource allocation method in estuary areas, including: acquiring water source data of a target area and water demand data of each user, wherein the water source data comprises designed water intake flow of a water intake pump station in the target area and reservoir capacity data of a water supply reservoir; Determining the total dilution time of the water intake pump station in the target tide period based on the inflow water flow of the river reach in which the water intake pump station is positioned in the target tide period and the corresponding relation between the inflow water flow of the river reach and the dilution time; determining daily water intake flow of a water intake pump station in each day of a target tide period based on total water intake duration and designed water intake flow; And determining the water resource allocation amount of each user by adopting a water resource allocation model according to daily water intake flow of each day and water demand data of each user, wherein the water resource allocation model takes the minimum total water shortage of all the users in the scheduling period as an objective function, and solves the objective function under a preset constraint condition. Optionally, the corresponding relation between the incoming water flow of the river reach and the light time length is obtained by calibrating the correlation between the incoming water flow of the river reach in the historical tide period and the total light time length in the corresponding tide period. Optionally, determining the daily water intake flow of the water intake pump station in each day in the target tide period based on the total diluted time period and the designed water intake flow comprises: determining the daily light-taking time of a water-taking pump station in each day based on the total light-taking time; determining the daily dilution probability of each day according to the daily dilution time of the water intake pump station; and obtaining daily water intake flow of each day based on the daily dilution probability and the designed water intake flow of each day. Optionally, determining the daily light period of each daily water intake pump station based on the total light period includes: The method comprises the steps of obtaining a daily light-taking time length distribution rule of the daily light-taking time length in a rated target tide period, wherein the daily light-taking time length distribution rule is obtained by rating based on historical hydrological data of a river reach where a water taking pump station is located and corresponding historical daily light-taking time length data; And according to a daily light-taking time length distribution rule, distributing the total light-taking time length in the target tide