直流制式下机车变压器磁场分析及绕组电感计算  

Analysis of magnetic field and calculation of inductance of locomotive transformer as a filter under DC

作　　者：陈萌[1] 李晓松[1] 曾耀吾 邓慧都 夏娟娟[1] 李奇[1] 

机构地区：[1]长沙理工大学电气与信息工程学院,湖南长沙410004

出　　处：《长沙理工大学学报（自然科学版）》2013年第4期80-85,共6页Journal of Changsha University of Science and Technology:Natural Science

基　　金：湖南省自然科学基金资助项目(12JJ5013)

摘　　要：针对1台具有4个高压4个牵引绕组结构的机车变压器,用ANSYS软件分析了直流制式下机车变压器的磁场,并在此基础上计算了4个低压绕组的电感矩阵,讨论了4个低压侧绕组不同的连接方式对铁心磁场分布及绕组电感的影响.在比较计算结果及结合实际要求的基础上,推荐了一种较为理想的直流制式下变压器用做滤波器的绕组连接方式.A 3-D finite element model for a locomotive transformer which is consisted of 4 high voltage windings and traction windings as a filter under DC is at first established based on software ANSYS,and inductance coefficient matrix reflecting the electromagnetic coupling among the secondary windings is calculated.The influence of the different connections of the windings on the field and the inductance is analyzed in detail.A proper connection of the four secondary windings is proposed for the transformer as a filter under the DC after a comparative analysis on the results for all the four different connections of the secondary windings is made.

关 键 词：机车变压器 直流供电 磁场分析 电感矩阵 ANSYS软件 

分 类 号：TM401.1[电气工程—电器] TM477