[1]王 东,牛海清,范 华,等.10 kV三芯电缆中间接头瞬态温度场降阶建模方法[J].工业仪表与自动化装置,2025,(05):102-106.[doi:10.19950/j.cnki.CN61-1121/TH.2025.05.019]
　WANG Dong,NIU Haiqing,FAN Hua,et al.Transient temperature field reduced-order modeling method for intermediate joints of 10 kV three-core cable[J].Industrial Instrumentation & Automation,2025,(05):102-106.[doi:10.19950/j.cnki.CN61-1121/TH.2025.05.019]
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10 kV三芯电缆中间接头瞬态温度场降阶建模方法()

《工业仪表与自动化装置》[ISSN:1000-0682/CN:61-1121/TH]

卷:
期数:
2025年05期
页码:
102-106
栏目:
出版日期:
2025-10-15

文章信息/Info

Title:
Transient temperature field reduced-order modeling method for intermediate joints of 10 kV three-core cable
文章编号:
1000-0682（2025）05-0102-05
作者:
王 东1; 牛海清1; 范 华2; 翁利国2
1. 华南理工大学 电力学院，广东 广州 510641； 2. 浙江中新电力工程建设有限公司，浙江 杭州 311201
Author(s):
WANG Dong1;  NIU Haiqing1;  FAN Hua2;  WENG Liguo2
1. School of Electric Powers, South China University of Technology, Guangdong Guangzhou 510641, China;2. Zhongxin Power Engineering Construction Corporation of Zhejiang, Zhejiang Hangzhou 311201, China
关键词:
中间接头; 热流耦合仿真; 瞬态温度场; 本征正交分解; 离散经验插值; 降阶模型
Keywords:
intermediate joints;  coupled heat flow simulation;  transient temperature field;  proper orthogonal decomposition;  discrete empirical interpolation method;  reduced-order model
分类号:
TM726.4
DOI:
10.19950/j.cnki.CN61-1121/TH.2025.05.019
文献标志码:
A
摘要:
中间接头是电缆线路的温升薄弱点，为提高中间接头瞬态温度场的计算效率，基于本征正交分解法和离散经验插值法，提出了1种能够快速响应的非线性瞬态温度场降阶建模方法。建立了10 kV三芯电缆中间接头热流耦合全阶仿真模型，基于温升实验数据验证了模型参数的合理性；通过10组单次仿真时长为12 h的有限元全阶瞬态仿真实验获取了样本快照数据集；基于样本数据集，通过本征正交分解法提取主导模态，结合离散经验插值法处理全阶方程中的非线性项，将高维瞬态温度场求解问题转化为低维降阶方程的求解。该文基于瞬态降阶模型与瞬态全阶模型的仿真结果证明误差可接受，验证了该建模方法的准确性。
Abstract:
In order to improve the calculation efficiency of the transient temperature field of the intermediate joint, this paper proposes a nonlinear transient temperature field reduction modeling method with fast response based on the intrinsic orthogonal decomposition method and the discrete empirical interpolation method. A full-order simulation model of heat flow coupling of intermediate joints of 10 kV three-core cable was established, and the rationality of the model parameters was verified based on the temperature rise experimental data. The sample snapshot dataset was obtained through 10 sets of finite element full-order transient simulation experiments with a single simulation duration of 12 hours. Based on the sample dataset, the dominant mode is extracted by the proper orthogonal decomposition method, and the nonlinear term in the full-order equation is processed by the discrete empirical interpolation method, so that the solution of the high-dimensional transient temperature field is transformed into the solution of the low-dimensional reduced-order equation. In this paper,the simulation results of the transient reduced-order model and the transient full-order model prove that the error is acceptable, and the accuracy of the modeling method is verified.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2025-03-21基金项目：浙江中新电力工程建设有限公司科技项目(HDXS3－2110037)第一作者：王东(2000—)，男，山东临沂人，硕士研究生，研究方向为电气设备多物理场仿真与数字孪生。通信作者：牛海清(1969—)，女，陕西富平人，博士，副教授，研究方向为电气设备在线监测与多物理场仿真。
更新日期/Last Update: 1900-01-01