摘要
本文通过对交流电机圈式定子线圈及真空压力浸渍(VPI)模具的结构分析,建立了相应的电路模型,并采用ANSYS仿真软件计算了线圈低电阻防晕层表面漆膜的平均厚度、线圈低电阻防晕层与表面漆膜的相邻接触点之间的长度与线圈槽部表面电位之间的关系,并在此基础上进一步分析了线圈槽部表面电位对线圈实测介质损耗因数的影响。结果表明,线圈低电阻防晕层表面漆膜的平均厚度、线圈低电阻防晕层与表面漆膜的相邻接触点之间的长度、主绝缘厚度、主绝缘相对电容率等均与线圈实测介质损耗因数有关。
Through the structure analysis of stator coil and its mocks for vacuum press impregnation(VPI)of AC rotating machine,relative circuit model is established in this paper.The relationship including average thickness of varnish on the surface of conductive layer of coil,the length of neighborhood contact points between varnish and conductive layer,surface potential on the slot part of coil are simulated by ANSYS software.On the basis of results,the influence of surface potential on the slot part of coil on the measured value of dielectric loss of stator coil are analyzed.The results show that the measured value of dielectric loss of stator coil is affected by average thickness of varnish on the surface of conductive layer,the length of neighborhood contact points between varnish and conductive layer,the thickness of main insulation,dielectric constant of main insulation and so on.
作者
杨帅
黄泽
周进
程圣
左瑞
胡波
YANG Shuai;HUANG Ze;ZHOU Jin;CHEN Sheng;ZUO Rui;HU Bo(Dongfang Electric Machinery Co.,Ltd.,618000,Deyang,Sichuan,China)
出处
《东方电气评论》
2021年第3期50-53,88,共5页
Dongfang Electric Review
