An asymmetric dependence of the critical current on the direction of an applied magnetic field in HTS coated conductors has a non-trivial influence on the AC loss of coil windings. We report the modelled influence of real conductor critical current asymmetry on the AC loss characteristics of a 1 MVA HTS transformer design previously demonstrated by the Robinson Research Institute as well as a stand-alone coil having the same geometrical and electrical parameters as the low voltage (high current) winding of the transformer. We compare two commercial HTS conductors with distinctive differences in their critical current asymmetry and show a maximum variation of 15% and 29% in the calculated AC loss of the transformer and the stand-alone coil winding, respectively, when the conductor orientation is varied in the top and bottom halves of the windings. AC loss simulation giving consideration to asymmetric conductor critical current before winding the transformer could lead to substantial AC loss reduction even using the same amount of conductor and the same transformer design.

临界电流对HTS涂层导体中施加的磁场方向的不对称依赖性对线圈绕组的AC损耗有重要影响。我们报告了实际导体临界电流不对称对1 MVA HTS变压器设计的交流损耗特性的建模影响，该设计先前由Robinson Research Institute演示过，以及具有与低压相同的几何和电气参数的独立线圈（高电流）的变压器绕组。我们比较了两种商品化的HTS导体，它们的临界电流不对称性存在显着差异，当导体方向变化时，变压器和独立线圈绕组的计算出的交流损耗分别显示出最大变化分别为15％和29％。绕组的上半部分和下半部分。