应用镜像法研究电缆绕组变压器的漏磁场  

Study on leakage magnetic field of cable winding transformer by means of image current

作　　者：毕延军[1] 徐宁[1] 杨平[1] 刘文里[1] 

机构地区：[1]哈尔滨理工大学,黑龙江哈尔滨150040

出　　处：《黑龙江电力》2006年第1期11-14,19,共5页Heilongjiang Electric Power

基　　金：哈尔滨市科技攻关项目(2004AA2CG109)

摘　　要：电缆绕组变压器是一种基于交联聚乙稀电缆的新型电力变压器,具有广阔的应用前景。应用镜像电流法对其铁心窗中的漏磁场进行了分析和计算,描述了场点处向量磁位、磁感应强度与镜像电流次数奇偶性的关系,利用这种对偶关系近似得到了场点处向量磁位和磁场感应强度的较准确值。The cable winding transformer is a new kind of electric power transformer based on tranded polyethylene cable, which has a wide potential expectation. The leakage magnetic field in cable winding transformer core window was analyzed and calculated by means of image current, the relationship among vector magnetic potential, magnetic-flux-density and parity of image current was also described and the value of the vector magnetic potential and magnetic-flux-density can be accurately gained by using such duality relations.

关 键 词：镜像电流 向量磁位 磁感应强度 变压器 

分 类 号：TM403.2[电气工程—电器]