大容量中频变压器铁心材料损耗特性及其应用可行性  

Research on the magnetic properties and application feasibility of iron core materials for large capacity medium frequency transformers

作　　者：马光 钱肖 何承绪 徐伟杰 韩钰 黎先浩 方晨 MA Guang;QIAN Xiao;HE Chengxu;XU Weijie;HAN Yu;LI Xianhao;FANG Chen(State Key Laboratory of Advanced Power Transmission Technology,China Electric Power Research Institute,Beijing 100192,China;Jinhua Power Supply Company,State Grid Zhejiang Electrical Power Co.,Ltd.,Jinhua 321000,China;State Grid(Xi'an)Environmental Protection Technique Center Co.,Ltd.,Xi'an 710100,China;Shougang Zhixin Electromagnetic Material(Qian an)Co.,Ltd.,Qian an 064404,China)

机构地区：[1]先进输电技术全国重点实验室,中国电力科学研究院有限公司,北京100192 [2]国网浙江省电力有限公司金华供电公司,浙江金华321000 [3]国网(西安)环保技术中心有限公司,陕西西安710100 [4]首钢智新电磁材料(迁安)股份有限公司,河北迁安064404

出　　处：《电工钢》2025年第2期38-43,共6页ELECTRICAL STEEL

基　　金：国家电网公司科技项目(No.5500-202419129A-1-1-ZN)。

摘　　要：分析了两种硅钢材料在中频工况下的损耗特性,研究了频率、温度对损耗特性的影响规律,同时探索了两种硅钢材料在大容量中频变压器的应用可行性。结果表明,频率提升,两种带材损耗均大幅提升。在频率<400 Hz条件下,0.15 mm薄规格取向硅钢损耗相对较低;在频率>400 Hz条件下,0.08 mm超薄取向硅钢损耗相对较低。两种硅钢材料在60~130℃复杂工况条件下损耗均呈降低趋势,温度越高、加热时间越长,损耗逐渐降低,最终达到平稳状态。仅从材料性能角度考虑,当频率≤400 Hz时,大容量中频变压器铁心材料选用0.15 mm薄规格取向硅钢较为合适,当频率>400 Hz时,大容量中频变压器铁心材料选用0.08 mm薄规格取向硅钢较为合适。The loss characteristics under medium frequency work conditions of two silicon steel materials were analyzed,the effect of frequency,temperature on loss property was studied,and application feasibility of two silicon steel materials in large capacity medium frequency transformers.0.15 mm thin-gauge oriented silicon steel has lower loss below 400 Hz,while 0.08 mm ultra-thin grain-oriented silicon steel has lower loss above 400 Hz.The iron loss of both silicon steel materials under 60-130℃ complex conditions were decreased.The higher the temperature and the longer the heating time,the loss gradually decreases and finally reaches a stable state.Just from performance perspective,when the frequency≤400 Hz,0.15 mm thin-gauge grain-oriented silicon steel was more suitable for preparing large capacity medium frequency transformer cores,when the frequency>400 Hz,0.08 mm ultra-thin grain-oriented silicon steel was more suitable for preparing large capacity medium frequency transformer cores.

关 键 词：薄规格取向硅钢 超薄取向硅钢 损耗 复杂工况 中频变压器 

分 类 号：TF764.1[冶金工程—钢铁冶金]