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Jung, Jee-Hoon
Advanced Power Interface & Power Electronics Lab (APIPEL)
Research Interests
  • Power Converter, Wireless Power Transfer, Smart Power Interface, Digital Control System,
  • PHIL simulation system, Power Line Communication

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High-Efficiency Isolated Bidirectional AC-DC Converter for a DC Distribution System

Cited 25 times inthomson ciCited 35 times inthomson ci
Title
High-Efficiency Isolated Bidirectional AC-DC Converter for a DC Distribution System
Author
Kim, Ho-SungRyu, Myung-HyoBaek, Ju-WonJung, Jee-Hoon
Keywords
AC-DC boost rectifier; Bidirectional isolated converter; CLLC resonant converter dc distribution system
Issue Date
2013-04
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON POWER ELECTRONICS, v.28, no.4, pp.1642 - 1654
Abstract
A high-efficiency isolated bidirectional ac-dc converter is proposed for a 380-V dc power distribution system to control bidirectional power flows and to improve its power conversion efficiency. To reduce the switches' losses of the proposed nonisolated full-bridge ac-dc rectifier using an unipolar switching method, switching devices employ insulated-gate bipolar transistors, MOSFETs, and silicon carbide diodes. Using the analysis of the rectifier's operating modes, each switching device can be selected by considering switch stresses. A simple and intuitive frequency detection method for a single-phase synchronous reference frame-phase-locked loop (SRF-PLL) is also proposed using a filter compensator, a fast period detector, and a finite impulse response filter to improve the robustness and accuracy of PLL performance under fundamental frequency variations. In addition, design and control methodology of the bidirectional full-bridge CLLC resonant converter is suggested for the galvanic isolation of the dc distribution system. A dead-band control algorithm for the bidirectional dc-dc converter is developed to smoothly change power conversion directions only using output voltage information. Experimental results will verify the performance of the proposed methods using a 5-kW prototype converter.
URI
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DOI
10.1109/TPEL.2012.2213347
ISSN
0885-8993
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EE_Journal Papers
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