MATEC Web Conf.
Volume 228, 20182018 3rd International Conference on Circuits and Systems (CAS 2018)
|Number of page(s)||5|
|Section||Circuits, Control and Mechatronic Engineering|
|Published online||14 November 2018|
A Study on a Single-Phase HTS Transformer with a Cylindrical Central Iron Core
Sino-Korean School of Multimedia Design, Shanghai University of Engineering Science, Shanghai, China
2 General Department of Power Grid Engineering Branch, China Energy Engineering Group Anhui Electric Power Design Institute Company Ltd., Hefei, China
3 Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China
4 Dali Power Supply Bureau repair Institute, Dali City, Yunnan, China
a Corresponding author: firstname.lastname@example.org
During the past decade, a number of high temperature superconducting (HTS) transformer prototypes have been designed, and the majority of them are full-core transformers and air-core transformers. However, in this study, we proposed a new type of HTS transformer, where the iron core is different in that the limbs and connecting yokes are absent. To investigate the performance of this type of HTS transformer, we design and fabricate a single-phase HTS partial core transformer prototype using the secondary generation (2G) HTS GdBCO wires. The iron core is at room temperature, and the windings are immersed in liquid Nitrogen. The structures of primary and secondary windings are three layers connected in series and nine double pancakes connected in parallel, respectively. Fundamental characteristics are obtained by standard short-circuit, no-load and load tests in liquid Nitrogen temperature of 77 K. In addition, an equivalent circuit of the HTS transformer is proposed to analyze the characteristic of the transformer. The calculated values based on the equivalent circuit are consistent with that of experiment. The detailed results about the design of the HTS partial-core transformer, the experiment, and the equivalent circuit are presented and discussed in this study.
© The Authors, published by EDP Sciences, 2018
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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