高频变压器涡流损耗公式的推导及有限元方法的验证

The Derivation of Eddy Current Loss Formula and Validation by Using FEM in High Frequency Transformer

高频变压器绕组中损耗与其结构和排布密切相关,计算不同绕组结构的损耗,确定绕组结构与损耗大小的关系对高频变压器设计和制造意义重大。推导并建立了平扁变压器中涡流损耗的计算公式,用于不同绕组结构的损耗计算。该公式不仅简化了绕组损耗的计算复杂程度,也阐明了绕组结构与绕组损耗及参数的关系。最后用有限元方法验证了损耗计算公式的正确性。

The coil losses of high-frequency transformer are closely related to the wingding arrangements. Find out relationship between structure and the size of the loss of winding is of great significance to high-frequency transformer design and manufacturing. This paper set up the formula for calculation of eddy current losses in a flat transformer and used for calculating loss of different winding structures. This formula is easily to calculate and also shows the relationship between winding distribution and losses. At last, the paper verified the validity of the loss calculation formula by using finite element method.