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| 封闭母线接头温度场分析与保护方法研究 | |
| 引用本文： | 胡金星,赵凯,佘奇,齐勇智,雷海. 封闭母线接头温度场分析与保护方法研究[J]. 消防科学与技术, 2011, 30(3): 261-265 |
| 作者姓名： | 胡金星 赵凯 佘奇 齐勇智 雷海 |
| 作者单位： | 1. 重庆市电力公司城区供电局,重庆,400015 2. 重庆市九龙坡区消防支队,重庆,401239 3. 重庆大学,输配电装备及系统安全与新技术国家重点实验室,重庆,400044 |
| 摘 要： | 封闭母线接头的发热温升和散热问题是影响其工作稳定性的重要因素。在构建封闭母线接头简化结构模型的基础上,结合热量传递的三种基本方式——导热、对流及辐射建立封闭母线接头温度场数学模型;利用有限容积法对封闭母线接头温度场数学模型进行离散化处理并建立离散化方程;通过三对角阵算法迭代求解出封闭母线接头处内外温度分布。通过实验验证所建立模型的正确性,并基于该模型提出一种针对接头处小电流高温度的温度保护方法。 |
| 关 键 词： | 封闭母线接头 温度场 数学模型 |
Analysis of temperature field and research on protection methods of enclosed bus connector |
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| HU Jin-xing,ZHAO Kai,SHE Qi,QI Yong-zhi,LEI Hai. Analysis of temperature field and research on protection methods of enclosed bus connector[J]. Fire Science and Technology, 2011, 30(3): 261-265 | |
| Authors: | HU Jin-xing ZHAO Kai SHE Qi QI Yong-zhi LEI Hai |
| Affiliation: | HU Jin-xing1,ZHAO Kai2,SHE Qi3,QI Yong-zhi1,LEI Hai1(1.City Power Supply of Chongqing Electric Power Company,Chongqing 400015,China,2.Chongqing Jiulongpo Fire Detachmeut,Chongqing 401239,3.State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University,Chongqing 400044,China) |
| Abstract: | As power transmission equipment,the enclosed busbar connector has the problems of heating up and the heat yield that affect its service performance.Considering three basic modes of heat transfer as heat conduction,convection and radiation,based on simplified structure model of enclosed busbar connector,the mathematical model of temperature field busbar connector is established;the finite volume method on the temperature field of busbar connector is used to establish the discrete equations;Tridiagonal matrix... |
| Keywords: | enclosed bus connector thermal field mathematical model |
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