Analysis of the Internal Electrical Characteristics of
Electronic Power Transformers
Yang Yi*, Cheng-Xiong Mao*, Dan Wang†, and Ji-Ming Lu**
*State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science
and Technology, Wuhan, China
†**College of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan,
China.
Abstract
The modularized subunit of an electronic power transformer (EPT) is a series connection of two H-bridge voltage-source
converters and a DC–DC converter with a high-frequency isolation transformer (HFIT). On the basis of cascading and paralleling
the modularized subunits, EPT can be used in high-voltage and large-current applications in the power system. This paper discusses
the steady state analysis of the modularized subunit of EPT. Theoretical analysis considers the influences of the two H-bridge
voltage-source converters on the two sides of the DC–DC converter. We deduce the formulas of the theoretical calculation on the
internal electrical characteristics of EPT (e.g., the voltages of the DC-bus capacitor and the primary side peak current of the HFIT).
This paper provides guidance on the design and selection of EPT key elements (e.g., the DC-bus capacitors and HFIT).
Experimental results are obtained from a single subunit of a laboratory model rated at 962 V, 15 kVA. All calculations, simulations,and experiments confirm the theoretical analysis of the subunit of EPT.
LINK
http://jpe.or.kr/archives/view_articles.asp?seq=776
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Mostrando postagens com marcador High-frequency isolation transformer (HFIT). Mostrar todas as postagens
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terça-feira, 17 de dezembro de 2013
Analysis of the Internal Electrical Characteristics of Electronic Power Transformers Yang Yi*, Cheng-Xiong Mao*, Dan Wang†, and Ji-Ming Lu**
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