摘要
在标准条件下,通过测量得到的电力变压器叠片铁心材料的磁性能数据,不能完全反应实际工作状态下材料的真实电磁性能。本文建立了两个产品级的叠片铁心模型模拟电力变压器铁心的实际工作状态,两铁心采用相同的材料和接缝型式,具有相同的截面面积,但柱轭的长度不同,采用双铁心方法获取电力变压器叠片铁心工作条件下的综合磁性能。得到了包括有效磁路长度,磁化曲线,损耗曲线以及铁心接缝区和柱轭区的励磁伏安等磁性能数据,有助于提高电力变压器产品的电磁分析和优化设计。
The magnetic properties of the power transformer laminated core that measured under the standard condition, can not completely reflect the practical working magnetic properties. An efficient method for modeling the global magnetic properties of the laminated core under working condition is investigated based on two core models of product level, which have the same material, joint type and sectional area but different limb length. The magnetic property data of the laminated core are obtained, such as the effective magnetic path length, the magnetization curve, the loss curve, and the exciting power at both the joints and limbs, which can be used in the electromagnetic analyses and optimization design of the power transformer products.
出处
《电工技术学报》
EI
CSCD
北大核心
2010年第3期14-19,共6页
Transactions of China Electrotechnical Society
基金
国家自然科学基金(50777042)
河北省自然科学基金(E200601036)资助项目
关键词
叠片铁心模型
两铁心法
等效磁路长度
接缝影响域
励磁伏安
Laminated core model
two core method
equivalent magnetic path length
core joint influence region
exciting power
