一级能效电工钢片比总损耗的精确测量与仿真分析  

Precise measurement and simulation analysis of specific total loss of electrical steel sheet with first-level energy efficiency

作　　者：宋文乐 韩学 王磊 张俊杰[2] 杨阔[3] 甘浩 李慧奇[3] SONG Wenle;HAN Xue;WANG Lei;ZHANG Junjie;YANG Kuo;GAN Hao;LI Huiqi(State Grid Cangzhou Electric Supply Company,Cangzhou 061001,China;Institute of Electrotechnology Baoding Tianwei Baobian Electric Co.,Ltd.,Baoding 071056,China;Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense(North China Electric Power University),Baoding 071003,China)

机构地区：[1]国网河北省电力有限公司沧州供电分公司,河北沧州061001 [2]保定天威保变电气股份有限公司,河北保定071056 [3]河北省输变电设备安全防御重点实验室(华北电力大学),河北保定071003

出　　处：《电工电能新技术》2024年第5期95-103,共9页Advanced Technology of Electrical Engineering and Energy

基　　金：国家自然科学基金项目(51577066)。

摘　　要：针对国标爱泼斯坦方圈法测量新一级能效硅钢片比总损耗结果的不确定性问题,本文提出了一种工频下基于双爱泼斯坦方圈的新一级能效硅钢片比总损耗测量方法。通过双爱泼斯坦方圈法测量硅钢片的比总损耗,分析并修正了测量方法中的误差,实现了对爱泼斯坦方圈测量时接缝区和均匀区的损耗分离,并分析了接缝区比总损耗对爱泼斯坦方圈测量结果的影响机理。建立了爱泼斯坦方圈有限元模型,对其接缝区和均匀区的损耗进行研究,仿真结果与双方圈法测量结果吻合,验证了本文提出的新一级能效超低损耗薄硅钢片的比总损耗时测量方法的有效性和准确性。测量和仿真结果表明,基于双方圈法测量薄硅钢片比总损耗的结果比单方圈法测量的结果更精确。本文提出的测量和修正方法可用于一级能效薄硅钢片损耗特性的精确测量。Due to the large uncertainty in the measurement results of the National Standard Epstein method to measure the specific total loss of the new-level energy efficiency low loss thin silicon steel sheet,this paper proposes a new method based on double-Epstein for measuring the specific total loss of loss thin silicon steel sheet.Using the double-Epstein method the specific total loss of the silicon steel sheet is measured,and the errors existing in the measurement method are analyzed and corrected.By processing the error-corrected experimental data the loss separation between the joint area and the uniform area of the Epstein is realized,and the mechanism of the total loss in the joint area on the measurement results of the Epstein is analyzed.The finite element simulation model of the Epstein is established,and study the range of the influence area of the joint and the loss of the uniform area and the joint area is studied.The simulation results are consistent with the measurement results of the double Epstein,which verifies the effectiveness and accuracy of the double-Epstein.The measurement and simulation results show that the results of measuring the specific total loss of thin silicon steel sheets by double Epstein method have higher accuracy than those measured by the Epstein method.The measurement method and error correction method proposed in this paper can be used for more accurate measurement of the magnetic properties of the first-class energy efficient thin silicon steel sheet.

关 键 词：一级能效 电工钢片 比总损耗 接缝 有限元仿真 

分 类 号：TM27[一般工业技术—材料科学与工程]