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Cascade pump station system water transfer engineering pump station optimization scheduling method

A technology for optimizing scheduling and pumping stations, applied in design optimization/simulation, forecasting, resources, etc., to prevent channel overflow, reduce fluctuation, and reduce vibration

Active Publication Date: 2021-04-02
CHINA INST OF WATER RESOURCES & HYDROPOWER RES +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a cascade pumping station system water transfer engineering pumping station optimization scheduling method, thereby solving the aforementioned problems existing in the prior art

Method used

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  • Cascade pump station system water transfer engineering pump station optimization scheduling method
  • Cascade pump station system water transfer engineering pump station optimization scheduling method
  • Cascade pump station system water transfer engineering pump station optimization scheduling method

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Embodiment 1

[0039] Such as figure 1 As shown, in the present embodiment, a cascade pumping station system water diversion engineering pumping station optimization scheduling method is provided, the system includes N pumping stations and N+1 canal sections; the optimal scheduling method includes the following steps,

[0040] S1. Determine the flow rate variation of the canal head and each pumping station;

[0041] S2. Calculate the flow change process of the i+1th pumping station in an ideal state;

[0042] S3. Calculating the control time from block i to block i+1 pumping station;

[0043] S4. Steps S2 to S3 are repeated, and the control time between any two adjacent pumping stations is calculated sequentially;

[0044] S5. Determine an optimal control scheme for the entire system.

[0045] In this embodiment, the cascade pumping station system water diversion project such as image 3 shown. The cascade pumping station system consists of N pumping stations and N+1 canal sections. It...

Embodiment 2

[0069] In this embodiment, a water diversion project in China is taken as an example, and a set of control schemes for pumping stations along the line are formulated according to the method of the present invention.

[0070] The water diversion project includes 4 pumping stations along the route. Assume the dispatcher wants pumping station 4 to increase by 1m 3 / s. According to the water transfer efficiency of the water diversion project, the adjusted flows of the pumping stations along the line and at the head of the canal are calculated as follows: pumping station 3 is adjusted by 1.08m 3 / s, pump station 2 adjustment 1.25m 3 / s, pumping station 1 adjustment 1.28m 3 / s and canal head adjustment 1.40m 3 / s. The optimal flow adjustment time between the pumping stations along the line is calculated by using the hydrodynamic model as shown in the table below.

[0071] canal head pumping station 1 pumping station 2 pumping station 3 pumping station 4 ...

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Abstract

The invention discloses a cascade pump station system water transfer engineering pump station optimization scheduling method, which comprises the steps of determining a channel head and flow variationof each stage of pump station, establishing a hydraulic model, setting an upstream boundary as a fixed flow and a downstream boundary as a fixed water level, changing the upstream flow after the model is stabilized, calculating the change process of the flow of a downstream pump station, and according to a downstream pump station pre-station flow change process, determining the optimal regulationand control time in a reverse thinking mode, and finally obtaining the optimal regulation and control scheme of the system. The method has the advantages that the optimal regulation and control timeand flow can be determined according to actual working conditions, fluctuation of the water level in front of the station is reduced, the phenomena of channel overflow, pumping station forebay draining, insufficient pumping station outlet submerging depth and the like are prevented, the engineering problems of water pump unit vibration, operation efficiency reduction, channel lining damage and thelike are reduced, and scientific basis and technical support are provided for actual scheduling.

Description

technical field [0001] The invention relates to the technical field of cascade pumping station system water transfer engineering, in particular to a cascade pumping station system water transfer engineering pumping station optimization scheduling method. Background technique [0002] The cascade pumping station system water diversion project is an important means to solve the contradiction between supply and demand of regional water resources and realize the rational allocation of water resources. Accurate and reasonable regulation of pumping stations is the key to realize the safe, stable and efficient economical operation of cascade pumping station system water transfer project, and it is also a key issue in the research of cascade pumping station system water transfer project at home and abroad. [0003] At present, the optimal scheduling of cascade pumping station system water transfer projects mainly focuses on improving the operating efficiency of the pumping station a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q10/06G06Q10/04G06F113/08
CPCG06F30/20G06Q10/06312G06Q10/04G06F2113/08
Inventor 张召雷晓辉颜培儒顾乃刚韩征征孙雷罗志文卫林枭朱杰
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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