文档介绍：: .
电工技术学报 摘要 绕组损耗测量是目前大功率高频变压器（HFT）建模与设计中的难点，高精度的绕组
损耗测量方法是校验绕组损耗理论研究正确性、提高建模与仿真精度的重要手段。目前广泛采用
的短路阻抗测量方法的精度随测量频率升高而降低，并不适用于 HFT。借助辅助绕组（AW）提
供额外测量节点是提高绕组损耗测量精度的有效措施。首先建立包含 AW 杂散参数的等效电路模
型，基于该模型的分析结果表明，AW 与被测绕组（WUT）之间漏感及耦合电容决定了绕组损耗
测量频率范围及精度。提出一种考虑耦合电容的绕组电阻测量校正方法，降低耦合电容的影响，
保证了高频下的测量精度。采用利兹线绕组中单股线作为 AW、AW 与 WUT 之间的漏感被降至极
低水平，扩展了测量频率范围，同时降低了工程实践难度。通过对一台 100kV·A HFT 样机绕组参
数的测量，验证了电路模型和校正方法的有效性，并实现了 1MHz 频率下绕组交流电阻的有效测
量。
关键词：高频变压器 绕组损耗 辅助绕组 误差分析
中图分类号：TM433
A Measurement Method of Winding Loss for
High-Frequency Transformer Based on Auxiliary Winding
Wang Tao Luo Rensong Wen Jifeng Zhang Maoqiang Tian Jie
（Nanjing NR Electric Co. Ltd. Nanjing 211102 China）
Abstract The measurement of winding loss is a difficult issue in the modeling and design of
high-power high-frequency transformers (HFT), and a high precision winding loss measurement
method is an important tool for verifying the correctness of winding loss theory and improving the
accuracy of modeling and simulation. The accuracy of short-circuit impedance measurement method
widely used at present decreases with the increase of measurement frequency, so it is not suitable for
HFT. Creating additional measurement nodes by aiding auxiliary windings (AW) is an effective
measure to improve the measurement accuracy of winding loss. An equivalen