GIS母线损耗发热状况的电磁场与流场计算分析.docVIP

2009中国电机工程学会年会稿件 通信作者：范镇南，电话email：fanzhennan@126.com PAGE GIS母线损耗发热状况的电磁场与流场计算分析 范镇南1,2 张德威2 陈显坡2　赵斌1,2 杨皓麟3 　 （1.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　重庆市　400044 2.国网四川省电力公司培训中心 四川省成都市　610072 3.国网成都电业局 四川省成都市 610100 ） The Electromagnetic Field and Fluid Field Calculation and Analyse about the Loss and Heat of GIS Bus Bar Fan Zhennan1,2　Zhang Dewei 2　Chen Xianpo 2　ZhaoBin1,2　Yang Haolin3 (1. State Key Laboratory of Power Transmission Equipment System Safety and New Technology, Chongqing University, Chongqing 400044, China; 2. Electric Power Training Center of Sichuan, Chengdu, Sichuan 610072　China 3.Cheng du Electric Power Bureau, Chengdu, Sichuan 610100　China) 2009中国电机工程学会年会稿件 通信作者：范镇南，电话email：fanzhennan@126.com PAGE PAGE 4 ABSTRACT：In order to further research the losses and heating problem of GIS bus bar, the electromagnetic field model and the fluid field model of the bus are established by FEM. As an example, the losses and temperature of the single-phase GIS bus are calculated and analysed in this paper, and the influences of some factors such as skin effect and eddy loss, the electro-conductivity temperature effect, the gas flow and the gravity are considered. Furthermore, the data are compared with the test. The results show that the current and loss density distribution in the conductor and tank indeed follow skin effect , and for the horizontal single-phase GIS bus bar, the temperature of the top of conductor and tank is higher than the bottom., the distribution of temperature is symmetrical to the vertical center axis, the gas convection is fairly strong between the conductor and tank , and in that annulus, the shape of isothermals like “S”， the temperature distribution is Nonuniform at the same circumference of a circle. KEY WORDS：electromagnetic field, fluid field , GIS bus bar, loss, heat 摘要：为深入研究GIS母线的损耗和发热问题，本文在综合考虑集肤效应、涡流损耗、电导率温度效应、气体流动、以及重力等多种因素影响的基础上，运用有限元方法，建立了GIS母线损耗发热的电磁场与流场求解模型。计算分析了单相GI