变压器式可控电抗器的场路耦合磁场分析  

Field-circuit coupling magnetic field analysis of controllable reactor of transformer type

作　　者：王田戈 惠亮亮 王语园[1] WANG Tian-ge;HUI Liang-liang;WANG Yu-yuan(Shaanxi Railway Institute,Weinan 714000,China)

机构地区：[1]陕西铁路工程职业技术学院,陕西渭南714000

出　　处：《电子设计工程》2020年第17期108-112,共5页Electronic Design Engineering

基　　金：渭南市科技计划项目(2020ZDYF-JCYJ-177);陕西铁路工程职业技术学院科研基金项目(KY2018-80);陕西铁路工程职业技术学院科技创新团队(KJTD201901)。

摘　　要：变压器式可控电抗器(Controllable Reactor of Transformer type,CRT)作为一种用于无功功率补偿的新型电磁设备,其磁场的强弱与分布关系到设备的容量与结构设计,从而影响着设备的基本参数和运行特性。基于有限元分析软件建立同心式CRT的二维有限元模型,通过外电路编辑器建立CRT的外电路模型,将二者进行场路耦合的联合仿真以对顺次单支路调节模式下CRT运行在空载、半载、额定负载时的磁场分布情况进行分析。结果显示,随着负载变化,CRT铁心中的磁通逐渐地向空气中转移;负载的增大使空气中的漏磁场增大,其分布在相邻两绕组之间,且主要集中于工作绕组与相邻控制绕组间的空气中。Controllable Reactor of Transformer type(CRT)as a new-type reactive compensation electromagnetic Device,the strength and distribution of its magnetic field is related to equipment capacity and structure design,which impact the basic parameters and operation characteristics of equipment.Based on the finite element analysis software to establish two-dimensional finite element model of concentric CRT.Establishing enternal circuit model of CRT by circuit editor.Put them into combined simulation of the field circuit coupling to analyze the magnetic field distribution of CRT which work in no-load、half load and rated load in the regulation mode of sequential single branch.The result shows that the magnetic flux in the CRT core gradually transfers to the air with the change of load.With the increase of load,the leakage magnetic field in the air increases,which is distributed between the adjacent two windings,and mainly concentrated in the air between the working winding and the adjacent control winding.

关 键 词：变压器式可控电抗器 有限元 场路耦合 磁场分布 

分 类 号：TN0[电子电信—物理电子学]