A long-term phase modulation condition technical water supply water temperature simulation prediction method for a pumped storage power station

CN122154156APending Publication Date: 2026-06-05POWERCHINA HUADONG ENG CORP LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: POWERCHINA HUADONG ENG CORP LTD
Filing Date: 2026-01-23
Publication Date: 2026-06-05

AI Technical Summary

Technical Problem

Existing technologies are insufficient to accurately predict changes in the technical water supply temperature under long-term phase regulation conditions in pumped storage power stations, especially lacking consideration of the degree of water temperature diffusion and long-term changes.

Method used

A three-dimensional numerical simulation method was adopted to simplify the modeling area. The boundary conditions of the water intake and drainage outlet were set through the DEFINE_PROFILE module function. The temperature was calculated by combining the Transient method and the temperature change was corrected according to the actual data, which simplified the fluid-solid-thermal coupling calculation.

Benefits of technology

It enables water temperature prediction under long-term phase adjustment conditions, simplifies the calculation process, saves resources and time, and improves the accuracy and reliability of prediction.

✦ Generated by Eureka AI based on patent content.

Smart Images

Figure CN122154156A_ABST

Patent Text Reader

Abstract

The application provides a long-term phase modulation condition technical water temperature simulation prediction method for pumped storage power station, which comprises the following steps: step 1, determining a calculation range; step 2, setting a water intake boundary condition; step 3, setting a drainage outlet boundary condition; step 4, monitoring points and the rest of the boundary simplification; step 5, calculation and temperature superposition cycle; step 6, temperature rise correction. Compared with the prior art, the three-dimensional numerical simulation method can solve the problem that the existing phase modulation condition can only obtain short-term phase modulation results, and can predict the phase modulation results for a long enough time. At the same time, the calculation process is simplified through the method of simplifying the technical water supply user and simplifying the modeling area, especially the water intake and the drainage outlet are given the flow rate and the temperature boundary condition through the self-defined program, and the temperature difference between the drainage outlet and the water intake is a constant value, so that the method can give any working condition and any boundary, and the calculation is simple and easy to operate.

Need to check novelty before this filing date? Find Prior Art