一种核电机组高压加热器解列工况仿真计算方法

By integrating the mechanistic model and the support vector regression model, and combining the Bayesian optimization algorithm to optimize the hyperparameters, the simulation calculation problem of nuclear power units under the high-pressure heater disconnection condition was solved, achieving high-precision and high-reliability simulation calculations, and guiding the safe and economical operation of nuclear power units.

CN122154496BActive Publication Date: 2026-07-17CNNC NUCLEAR POWER OPERATION MANAGEMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CNNC NUCLEAR POWER OPERATION MANAGEMENT CO LTD
Filing Date
2026-05-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies struggle to achieve accurate simulation calculations under high-pressure heater disconnection conditions, leading to large fluctuations in nuclear power unit operating parameters, which impacts safety and economy. In particular, there is a lack of effective hybrid modeling methods under small sample conditions.

Method used

By integrating the mechanistic model and the support vector regression model, and through iterative calculation and data-driven prediction, combined with the Bayesian optimization algorithm to optimize hyperparameters, accurate simulation calculations can be achieved under the high-pressure heater disconnection condition.

Benefits of technology

It improves the accuracy and interpretability of simulation calculations, enabling rapid and accurate prediction of critical operating states of nuclear power units, guiding operators, preventing nuclear power exceedances, and enhancing unit safety and economy.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明具体涉及一种核电机组高压加热器解列工况仿真计算方法,属于核电机组二回路热力系统性能计算与仿真领域,包括如下步骤:根据机组的设计工况数据和正常运行工况数据,建立机组二回路热力系统性能计算的机理模型;根据机组的正常运行工况数据和高压加热器解列工况数据,建立并训练机组二回路热力系统关键运行参数预测的支持向量回归模型;将所述机理模型与所述支持向量回归模型进行融合,执行机组二回路热力学系统在高压加热器解列后的性能计算。本发明融合机理模型和支持向量回归,在缺少实际高压加热器解列工况数据的情况下,实现正常运行情况下的核电机组突然发生一列高压加热器解列后,核电机组关键运行状态的准确、快速预测。
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