第43卷第3期 电力机车 Vol 43 No. 3 2020年5月20日 车辆 May 20th 2020 研究开发◆ DO:10.16212/cnk1672-11872020.03.002 电力电子变压器中高频变压器 损耗分析与设计 梁湘湘1,蔡明星1,任玉强2,陈为2,郑健博2 (1.中车株洲电机有限公司,湖南株洲412001; 2.福州大学电气工程与自动化学院,福建福州350108) 摘要:随着离岸风电场、可再生能源并网系统、电力机车牵引变流系统的发展,电力电子变压器能 够实现电压转换、功率调节等功能,受到了广泛的关注。高频变压器作为电力电子变压器中不可或缺的组 成部分,对于系统的稳定运行起着至关重要的作用。随着电压等级逐渐提高,传递功率逐渐增大,高频变 压器的损耗水平值得重点关注。日前传统的高频变压器设计方法基于数据手册,并没有考虑损耗的最优设 计。文章通过建立高频变压器绕组损耗与磁芯损耗模型,给出总损耗最优的设计流程,设计了一台5kHz/ 6kⅤA高频变压器样机,并在电力电子变压器系统中测量了该样机的温度分布,得到了该机的最大温升并 与计算温升作对比,误差在工程允许误差之内,证实了文章提出的总损耗最优的高频变压器设计流程的可 行性与实用性。 关键词:高频变压器;绕组损耗;磁芯损耗;优化设计 中图分类号:U264.36文献标识码:A 文章编号:1672-1187(2020)03-0006-07 Loss analysis and design of high-frequency transformer in power electronic transformer LIANG Xiang-xiang, CAI Ming-xing, REN Yu-qiang, CHEN Wei, ZHENG Jian-bo (1. CRRC Zhuzhou Electric Co, Ltd, Zhuzhou 412001, China; 2. College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China) Abstract: With the development of offshore wind farm, renewable energy grid connected system and traction converter system of electric locomotive, power electronic transformer can realize voltage conversion, power regulation and other functions, which has been widely concerned. As an indispensable part of power electronic transformer, high-frequency transformer plays an important role in the stable operation of the system. Due to the high voltage level and high power transmission, more attention should be paid to the loss level of high-frequency transformer. At present, the traditional design method of high-frequency transformer is based on data manual which is not the optimal design considering loss. By establishing the winding loss and magnetic core loss model of high-frequency transformer and giving the optimal design process of total loss, this paper designs a 5 kHz/6 kva high-frequency transformer prototype, and measures the temperature distribution of the prototype on the power electronic transformer test platform. The maximum temperature rise of the high-frequency transformer is obtaine and compared with the calculated temperature rise. The error of the temperature rise is within the allowable range of the project. So it proves the feasibility and practicability of the design process of high-frequency transformer Key words: high-frequency transformer; winding loss; core loss; optimum desi 收稿日期:2019-12-26 作者简介:梁湘湘,高级工程师,2000年毕业于西南交通大学电气自动化专业,从事牵引变压器研发工作 基金项目:国家重点研发计划(2017YFB1200901-04) 66 电力电子变压器中高频变压器 损耗分析与设计 * 梁湘湘 1 ，蔡明星 1 ，任玉强 2 ，陈  为 2 ，郑健博 2 （1. 中车株洲电机有限公司，湖南 株洲 412001； 2. 福州大学 电气工程与自动化学院，福建 福州 350108） 摘  要：随着离岸风电场、可再生能源并网系统、电力机车牵引变流系统的发展，电力电子变压器能 够实现电压转换、功率调节等功能，受到了广泛的关注。高频变压器作为电力电子变压器中不可或缺的组 成部分，对于系统的稳定运行起着至关重要的作用。随着电压等级逐渐提高，传递功率逐渐增大，高频变 压器的损耗水平值得重点关注。目前传统的高频变压器设计方法基于数据手册，并没有考虑损耗的最优设 计。文章通过建立高频变压器绕组损耗与磁芯损耗模型，给出总损耗最优的设计流程，设计了一台 5 kHz/ 6 kVA 高频变压器样机，并在电力电子变压器系统中测量了该样机的温度分布，得到了该机的最大温升并 与计算温升作对比，误差在工程允许误差之内，证实了文章提出的总损耗最优的高频变压器设计流程的可 行性与实用性。 关键词：高频变压器；绕组损耗；磁芯损耗；优化设计 中图分类号：U264.3+ 6 文献标识码：Ａ 文章编号：1672-1187（2020）03-0006-07 Loss analysis and design of high-frequency transformer in power electronic transformer LIANG Xiang-xiang1 , CAI Ming-xing1 , REN Yu-qiang2 , CHEN Wei2 , ZHENG Jian-bo2 ( 1. CRRC Zhuzhou Electric Co., Ltd., Zhuzhou 412001, China; 2. College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China) Abstract: With the development of offshore wind farm, renewable energy grid connected system and traction converter system of electric locomotive, power electronic transformer can realize voltage conversion, power regulation and other functions, which has been widely concerned. As an indispensable part of power electronic transformer, high-frequency transformer plays an important role in the stable operation of the system. Due to the high voltage level and high power transmission, more attention should be paid to the loss level of high-frequency transformer. At present, the traditional design method of high-frequency transformer is based on data manual, which is not the optimal design considering loss. By establishing the winding loss and magnetic core loss model of high-frequency transformer and giving the optimal design process of total loss, this paper designs a 5 kHz/6 kVA high-frequency transformer prototype, and measures the temperature distribution of the prototype on the power electronic transformer test platform. The maximum temperature rise of the high-frequency transformer is obtained and compared with the calculated temperature rise. The error of the temperature rise is within the allowable range of the project. So it proves the feasibility and practicability of the design process of high-frequency transformer with optimal total loss. Key words: high-frequency transformer; winding loss; core loss; optimum design 收稿日期：2019-12-26 作者简介：梁湘湘，高级工程师，2000 年毕业于西南交通大学电气自动化专业，从事牵引变压器研发工作。 基金项目：国家重点研发计划（2017YFB1200901-04） DOI:10.16212/j.cnki.1672-1187.2020.03.002 第 43 卷 第 3 期 2020 年 5 月 20 日 ◆ 研究开发 ◆ Vol. 43 No.3 May 20th，2020