Overview of Research Status of DC Bias and Its Suppression in Power Transformers

Youliang Sun, Li Zhang (), Zhuangzhuang Zhang and Dong Wang
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Youliang Sun: School of Electrical Engineering, Shandong University, Jinan 250061, China
Li Zhang: School of Electrical Engineering, Shandong University, Jinan 250061, China
Zhuangzhuang Zhang: Electric Power Research Institute of State Grid Henan Electric Power Company, Zhengzhou 450052, China
Dong Wang: Electric Power Research Institute of State Grid Henan Electric Power Company, Zhengzhou 450052, China

Energies, 2022, vol. 15, issue 23, 1-17

Abstract: In this article, the sources of DC bias and its effects on power transformers are first summarized. Secondly, the article classifies and summarizes the current DC bias calculation problems of power transformers, and puts forward some interesting viewpoints on the research logic of related calculations. The current processing methods of DC bias effect are classified and discussed, their advantages and disadvantages are compared, and the logic flow of DC bias effect processing is proposed. Finally, the current research on DC bias voltage of power transformers is summarized, and the progress and deficiencies of current research are pointed out, which has certain reference value for future research on DC bias voltage and its suppression.

Keywords: DC bias; transformers; vibration; electromagnetic characteristics (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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