摘要
电缆接头温度是衡量绝缘状况的一个重要指标,对其进行监测具有重要的工程价值。提出了一种基于支持向量回归(support vector regression,SVR)的三芯高压电缆接头温度计算方法,推算了三芯电缆接头温度与表面温度之间的关系。在15 kV三芯电缆接头温升的实验测试中,详细分析了SVR参数和温度测量点数量位置选择。最后将实验测试和有限元计算结果分别对比,验证了所提出方法的优越性。
The temperature of the cable joint is an important indicator to measure its insulation condition, and its monitoring is of great engineering value. This paper proposes a three-core high-voltage cable joint temperature calculation method based on support vector regression(SVR), the relationship between the temperature of the three-core cable joint and the surface temperature is calculated. Then,the performance of the SVR-based estimation model is verified by the temperature rise test of the 15 kV three-core cable joint. The SVR parameters and the selection of the number and location of temperature measurement points are discussed in detail. Finally, the calculation results are compared with the experimental test and finite element calculation results respectively to verify the superiority of the proposed method.
作者
袁燕岭
高岭
朱长荣
董杰
叶子雍
邹红波
YUAN Yanling;GAO Ling;ZHU Changrong;DONG Jie;YE Ziyong;ZOU Hongbo(State Grid Jibei Tangshan Power Supply Company,Tangshan 063000,China;College of Electrical and New Energy,Three Gorges University,Yichang 443000,China)
出处
《供用电》
2023年第2期85-91,共7页
Distribution & Utilization
基金
国家自然科学基金项目(61876097)。
关键词
支持向量回归
电缆接头
温度计算
网格耦合
有限元计算
support vector regression
cable joints
temperature calculation
grid coupling
finite element calculation
