Study of transformer magnetic properties considering temperature influence of electrical steel sheet

Issue title: Selected papers from the International Symposium on Applied Electromagnetics and Mechanics - ISEM 2019

Guest editors: Jinhao Qiu, Ke Xiong and Hongli Ji

Article type: Research Article

Authors: Chen, Dezhi^a; | Zhang, Yuyong^a | Yao, Hang^a | Wang, Yang^a | Zhao, Wenliang^b

Affiliations: [a] Special Electric Machines and High Voltage Apparatus Key Lab of National Education Ministry and Liaoning Province, Shenyang University of Technology, Shenyang, China | [b] School of Electrical Engineering, Shandong University, Jinan, China

Correspondence: [*] Corresponding author: Dezhi Chen, Special Electric Machines and High Voltage Apparatus Key Lab of National Education Ministry and Liaoning Province, Shenyang University of Technology, 110870, Shenyang, China. E-mail: chendezhi@sut.edu.cn

Abstract: In this paper, the magnetic field and temperature field of transformer are analyzed, and the influence of temperature on electrical steel sheet is considered. Experiment are supplied to obtain the magnetic properties curves (B-H curves, B-P curves, and magnetic permeability curves of 30QG120), which are required for the accurate FEM (finite element method) simulation setup. Finally, the magnetizing characteristics and temperature distribution of the transformer under different temperatures and loads are studied experimentally. The simulation results of a singlephase transformer are verified by the experimental results.

Keywords: Electrical steel sheet, different temperature magnetizing characteristics, transformer, simulation and experiment

DOI: 10.3233/JAE-209388

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 64, no. 1-4, pp. 761-769, 2020