期刊文献+

基于时域有限元方法的配电房大电流母排涡流场分析 被引量:6

Substation busbar eddy current field analysis based on time -stepping finite element method
下载PDF
导出
摘要 母排工作状况对整个配电系统的运行起着决定性的作用。针对配电房普遍使用的平板型空气绝缘母排结构,根据母排实际尺寸、位置等参数构建其工频磁场分布的计算模型。采用基于时域有限元的方法研究了矩形大电流母排满足的二维(2D)、三维(3D)涡流场问题。分析其磁感应强度变化,并与圆管型母排进行了比较,通过仿真验证,矩形母排磁感应强度与实测数据的最大误差小于5.79%,而圆管型母排磁感应强度与实测数据的误差较大。重点研究了不同工作电流对电磁力、磁场能量及功率损耗的影响。结果显示随电流增大,磁场能量、电磁力及功率损耗均呈增加趋势。当电流为2400A时,其三维涡流场的功率损耗高达114.462W/m。 The working condition of busbars plays a decisive role in distribution system operation. The plane busbars are generally used in indoor substation,for which the computing model of power frequency magnetic field distribution is established based on the parameters of dimension,position and so on. The two- dimensional and three-dimensional eddy current fields of large current busbars are researched based on time- stepping finite element method. Its magnetic inductive intensity variation is discussed and compared with pipe busbars. Simulation results show that the simulated magnetic inductive intensity of rectangular busbars is closer to the measured data than that of tube busbars,maximum error is less than 5.79 %. The influences of working current on magnetic force, energy and loss are mainly studied. Along with the increasing current,the magnetic field energy, electromagnetic force and power loss are increasing. Power loss of three- dimensional eddy current field is up to 114.462 W/m when current reaches 2400 A.
出处 《电力自动化设备》 EI CSCD 北大核心 2008年第9期52-54,59,共4页 Electric Power Automation Equipment
关键词 配电房 时域有限元方法 母排 涡流场 涡流损耗 distribution substation time- stepping finite element method busbar eddy current field eddy current loss
  • 相关文献

参考文献8

  • 1金建铭.电磁场有限元方法[M].西安:西安电子科技大学出版社,1998..
  • 2胡冰,张晓峰.用有限元方法计算矩形母线的集肤效应[J].低压电器,2005(3):7-9. 被引量:10
  • 3许莎,金先龙,庞峰,申杰,马炳烈,张晓云.大电流母线桥三维涡流场的有限元分析[J].上海交通大学学报,2005,39(12):2097-2101. 被引量:11
  • 4BRYANT C F,EMSON C R I,TROWBRIDGE C W. A comparison of lorentz gauge formulation in eddy current computations [J]. IEEE Trans on Magnetics,1990,26(2):430-433.
  • 5汤蕴.电机内的电磁场[M].2版.北京:科学出版社,1998.
  • 6张秀敏,苑津莎,崔翔.用棱边与节点有限元耦合的E-E-ψ法计算三维涡流场[J].中国电机工程学报,2003,23(5):70-74. 被引量:16
  • 7BIRO O,PREIS K. On the use of the magnetic vector potential in the finite element analysis of 3d eddy currents [J]. IEEE Trans Magnetics, 1989,25(4) :3145-3159.
  • 8KEIKKO T,KOTINIITTY J ,KORPINEN L. Calculations of magnetic fields from indoor distribution substation busbars[C] //Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference. Washington, USA :IEEE, 2000: 2309 -2314.

二级参考文献21

  • 1梁艳萍,陆永平,朱宽宁,戈宝军.汽轮发电机失磁异步运行时转子端部漏磁参数与涡流损耗的分析计算[J].中国电机工程学报,2004,24(11):112-115. 被引量:28
  • 2Ida N, Bastos J P A. Electromagnetic and calculation of fields (2^nd ed.) [M]. Springer-Verlag New York, Inc., 1997.
  • 3Bossavit A. Computational electromagnetism (Variational formulations, Complemeatarity, Edge elements) [M]. USA: Academic Press,1998.
  • 4Bossavit A. Whitney forms: a class of finite elements for threedimensional computations in eelectromagnetism[J].IEE Proceedings,1988, 135(8): Pt.A:493-499.
  • 5Bossavit A, verite J C. The ‘TRIFOU' Code: Solving the 3-D eddycurrent problem by using H as state-variable[J]. IEEE Trans on Mag.,1983, 19(6): 2465-2470.
  • 6Ren Z, Bouillault F, Razek A. A new hybrid model using electric field formulation for 3-D eddy current problems[J].IEEE Trans. on Mag.,1990, 26(2): 470-473.
  • 7Ruan J J, Chen X Z, Zhou K D. 3D transient eddy current calculation by the hybrid FE-BE method using magnetic field Intensity H[J]. IEEE Trans. on Mag., 1995, 31(3): 1408-1411.
  • 8Yu H T, Shao K R, Li L R, et al. Edge-nodal coupled method for computing 3D eddy current problems[J]. IEEE Trans. on Mag., 1997,33(2): 1378-1381.
  • 9Fujiwara K, Fusayasu H. Acceleration of convergence characteristic of the ICCG method[J]. IEEE Trans. on Mag., 1993, 29(2): 1958-1961.
  • 10Costache G I, Nemes M V, Petriu E M. Finite Element Method Analysis of the Influence of the Skin Effect, and Eddy Currents on the Internal Magnetic Field and Impedance of a Cylindrical Conductor of Arbitrary Cross-Section [ J ]. IEEE Electrical and Computer Engineening, 1995, ( 1 ) :253 ~ 256.

共引文献161

同被引文献43

引证文献6

二级引证文献18

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部