摘要
传统的计算核反应堆热功率的方法中,热平衡法和温差法各有缺陷,导致计算的热功率与实际值存在偏差。为了改善传统计算方法的计算精度,本文提出了一种热功率权重相加的计算方法,通过最小二乘回归计算出两种计算方法的权重,将两种方法的计算结果加权相加得到反应堆热功率。通过PCTRAN仿真数据进行验证,在功率从5000 MW降到4500 MW的过程中,本文方法计算结果的平均绝对百分比误差相较于热平衡法低了0.3%,比温差法低了3.6%,更加准确。
In traditional methods of calculating the thermal power of a nuclear reactor,both the thermal balance method and the temperature difference method have their own shortcomings,leading to a deviation between the calculated thermal power and the actual value.In order to improve the calculation accuracy of traditional methods,this paper proposes a calculation method of adding thermal power weights,which calculates the weights of the two calculation methods through least squares regression,and obtains the thermal power of the reactor by adding the calculation results of the two methods.Verified by PCTRAN simulation data,in the process where the power dropped from 5000 MW to 4500 MW,the average absolute percentage error of the calculation results using the method proposed in this paper is 0.3%lower than that of the heat balance method and 3.6%lower than the temperature difference method,making it more accurate.
作者
程泽洋
李政希
王海麟
周新志
Cheng Zeyang;Li Zhengxi;Wang Hailin;Zhou Xinzhi(College of Electronic Information,Sichuan University,Chengdu,China;National Key Laboratory of Nuclear Reactor Technology,Nuclear Power Institute of China,Chengdu,China)
出处
《科学技术创新》
2025年第14期10-13,共4页
Scientific and Technological Innovation
基金
中国核动力研究设计院联合基金资助,项目编号:SCU&NPIC-LHCX-20。
关键词
反应堆热功率
热平衡法
温差法
权重
最小二乘回归
reactor thermal power
heat balance method
temperature difference method
weight
least squares regressio
