老化模式下海上风电变压器循环电流的初步评估

Preliminary Assessment about Circulating Current of Transformer of Offshore Wind Turbine in Degraded Mode

针对海上风电变压器的可靠性,利用场路耦合3D有限元法,对老化模式下14000 kVA/66 k V海上风电变压器循环电流初步评估,分析循环电流对辅助变压器容量选择的影响,结果发现,辅助变压器的容量选择是由循环电流决定的。

Aiming at the reliability of offshore wind turbine transformer,using the field circuit coupling 3D finite element method,the 14000 kVA/66 kV offshore wind turbine transformer inn degraded mode is carried out the preliminary evaluation.The influence of circulating current on the selection of auxiliary transformer capacity is analyzed.The result finds that the capacity selection of the auxiliary transformer is decided by the circulating current.