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高压电器  2015 

高压换流变压器附加损耗计算程序

, PP. 55-59

Keywords: 瞬态电磁场,附加损耗,Magnet,VBscript脚本,演示

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Abstract:

高压输变电的发展要求换流变压器的性能不断提高,而附加损耗作为重要的设计依据,目前的商用软件无法提供相关数据,为此该课题组设计了基于Magnet面向高压换流变压器计算瞬态电磁场及附加损耗的二维专用程序。为提高不同设计人员的接受程度,该程序的前处理技术提供添加材料属性功能,二维电磁铁的瞬态电磁场计算实例,采用Delaunay和直线内插法相结合的网格剖分方法,VisualBasic6.0脚本和Magnet混合编程,后处理技术采用VBscript脚本、Txt文本及MATLAB实现结果显示分析。对一台500kV换流变压器模型的附加损耗及短路阻抗进行计算,计算值和实测值的最大偏差是4.1%,验证了该软件计算的准确性和有效性。

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