Fast Numerical Power Loss Calculation for High-Frequency Litz Wires
Fast Numerical Power Loss Calculation for High-Frequency Litz Wires
复制标题
高频利兹线的快速数值功率损耗计算
DOI：
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发表时间：
2021
影响因子：
6.7
通讯作者：
M. März
中科院分区：
文献类型：
--
作者：
Stefan Ehrlich;H. Rossmanith;Marco Sauer;Christopher Joffe;M. März
本文提出了一种高频绞合线实际功率损耗的快速数值计算方法。解释，利兹线的不完善的结构被认为是计算由于激励电流（皮肤损失）和外部磁场（接近损失）的损失。在个人计算机上进行了1000股以上的利兹线的计算，并通过高达10 MHz的测量进行了验证。在计算中，管束结构对皮肤和邻近损失的影响进行了检查。该方法允许为特定应用选择合适的利兹线或设计考虑实际扭转结构的利兹线。
This article presents a fast numerical calculation method of realistic power losses for high-frequency litz wires. Explicitly, the imperfect structure of litz wires is considered when calculating losses due to an excitation current (skin losses) and external magnetic fields (proximity losses). Calculations of litz wires with more than 1000 strands were performed on a personal computer and have been validated by measurements up to 10 MHz. In the calculation, the impact of the bundle structure on skin and proximity losses is examined. The method allows to select a suitable litz wire for a specific application or to design a litz wire considering realistic twisting structures.