特高压GIL热特性分析  

Thermal Characteristics Analysis of Ultra-high Voltage GIL

作　　者：汤会增 相黎阳 张倩旭 卢晓光 TANG Huizeng;XIANG Liyang;ZHANG Qiangxu;LU Xiaoguang(State Grid Henan Electric Power Company DC Center,Zhengzhou 450051,China;School of Mechanical Engineering,Henan Polytechnic Institute,Nanyang 473000,China;Henan Xuji Instrument Co.,Ltd.,Xuchang 461000,China)

机构地区：[1]国网河南省电力公司直流中心,河南郑州450051 [2]河南工业职业技术学院机械工程学院,河南南阳473000 [3]河南许继仪表有限公司,河南许昌461000

出　　处：《电工技术》2024年第15期190-192,196,共4页Electric Engineering

摘　　要：特高压GIL安全运行需建立智能化的监测算法,为掌握GIL温度监测算法的建立原则,重点研究了GIL外壳热平衡模型。通过GIL设备热源模型及散热模型的影响因素分析,完成了GIL热平衡方程的搭建,并利用GIL热平衡方程完成了不同影响因素的仿真。仿真结果表明,通过电流与热平衡值近似线性相关且是最大的GIL设备热源引入因素,环境空气温度与热平衡值近似线性相关且是变化敏感最大的散热影响变量。仿真结论明确给出了GIL热平衡变化趋势及关键影响因素,对特高压GIL运行监测算法的搭建指导作用明显。The safe operation of ultra-high voltage GIL requires the establishment of intelligent monitoring algorithms.In order to determine the principles of establishing GIL temperature monitoring algorithms,this study focused on thermal balance modeling of the GIL shell.By analyzing the influencing factors of the GIL equipment heat source model and heat dissipation model,the GIL heat balance equation was established,and simulation of different influencing factors was carried out using the GIL thermal equilibrium equation.The simulation results show that the maximum heat source is the approximate linear correlation between current and thermal equilibrium value,and the maximum heat dissipation impact variable is the approximate linear correlation between ambient air temperature and thermal equilibrium value,which is sensitive to changes.The simulation conclusion clearly provides the trend of GIL thermal balance changes and key influencing factors,which has a significant guiding effect on the construction of ultra-high voltage GIL operation monitoring algorithms.

关 键 词：GIL设备 热平衡 绝缘气体 特高压输电 

分 类 号：TM72[电气工程—电力系统及自动化] TH7[机械工程—仪器科学与技术]