Numerical Analysis of the Effect of Converter Transformer Combined Magnetic Shielding on Stray Load Losses Considering DC Bias

被引：0
作者：
Wang, Haoming [1 ]
Yang, Qingxin [1 ]
Li, Yang [1 ]
Li, Yongjian [1 ]
Zhang, Yue [2 ]
Wang, Jianmin [2 ]
机构：
[1] Hebei Univ Technol, State Key Lab Reliabil & Intelligence Elect Equip, Tianjin 300130, Peoples R China
[2] Baoding Tianwei Baobian Elect Co Ltd, Baoding 071056, Peoples R China
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2021年 / 31卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Magnetic shielding; stray load losses; converter transformer; DC bias;
D O I：
10.1109/TASC.2021.3091102
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In order to accurately analyze the effect of combined magnetic shielding on stray load losses of converter transformer, a three-dimensional (3D) finite-element analysis (FEA) model is established. The total losses can be gotten by summing the simulated losses of each harmonic. The effectiveness of the presented simulation method is verified by comparing the simulated and tested stray load losses of the converter transformer in the case of rated operation without lobe-type magnetic shielding structure. Afterwards, the installation position of lobe-type magnetic shielding is optimized by considering its effect on stray load losses. Finally, the stray load losses under different DC bias currents are simulated and analyzed.
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页数：4
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