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铌三锡管内电缆导体交流损耗计算分析模型

, PP. 20-25

Keywords: 铌三锡,管内电缆导体,应变,交流损耗

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Abstract:

为解决快变磁场中大电流和应变作用下,铌三锡(Nb3Sn)导体交流(AlternatingCurrent,AC)损耗的模拟实验分析问题,本文进行了瞬变电磁场中宽应变区间的AC损耗计算技术探索,构建应变作用下的临界电流数学模型,把复杂变化场中基于应变的临界电流密度运用到磁滞损耗功率计算,对耦合损耗功率计算中的导体特征参数考虑应变效应,获得CICC导体AC损耗功率计算技术。在激发等离子体的快速励磁以及等离子体放电和破灭等情况下,由模拟对比分析发现应变作用算法的AC损耗功率更接近工程实际值;对比应变作用算法损耗功率和经典算法损耗功率的相对误差计算,其误差的变化小于15%。

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