| 改进的解析法计算薄钢板的涡流损耗 |
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| 引用本文： | 刘志珍,励庆孚.改进的解析法计算薄钢板的涡流损耗[J].电工电能新技术,1999,18(4):57-59. |
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| 作者姓名： | 刘志珍 励庆孚 |
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| 作者单位： | 西安交通大学,710049 |
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| 摘 要： | 本文提出了一种改进的解析法，用来计算变压器油箱等结构件中由漏磁场引起的涡流损耗。该方法晃在计算出钢板表面法向磁场分布的基础上，采用双重傅立叶级数对其进行逼近，待定系数用Ｐｏｗｅｌｌ优化法确定，然后用解析法公式计算出涡流分布及涡流损耗。通过对ＴＥＡＭ Ｐｒｏｂｌｅｍ２１（Ｍｏｄｅｌ Ｂ）进行计算并与测量值比较，吻合很好，证明了该方法的有效性。
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| 关 键 词： | 解析法 薄钢板 涡流损耗 电力变压器 |
IMPROVED ANALYTICAL METHODS TO DETERMINE EDDY CURRENT LOSSES OF A THIN STEEL PLATE |
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| LIU Zhizhen,LI Qingfu.IMPROVED ANALYTICAL METHODS TO DETERMINE EDDY CURRENT LOSSES OF A THIN STEEL PLATE[J].Advanced Technology of Electrical Engineering and Energy,1999,18(4):57-59. |
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| Authors: | LIU Zhizhen LI Qingfu |
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| Abstract: | An improved analytical method which is able to calculate eddy losses of transformer tanks as well as structured objects is proposed.The incident flux on the upper face of steel plate of arbitrarily shape is fit by a double Fourier ceries.The unknown coefficients are determined by the Powell method.It is applied to TEAM Problem 21(Mode B).Agreement of calculated values with test results shows the validity of the method of calculation presented. |
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| Keywords: | analytical method thin steel plate eddy losses power transformer |
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