Title

AC-AC Dual Active Bridge Converter for Solid State Transformer

Abstract

This work investigates the application of an ac-ac dual active bridge converter for solid state transformer. The proposed converter topology consists of two active H-bridges and one high frequency transformer. Four-quadrant switch cells are used to ensure bi-directional power flow. The advantages of direct ac-ac conversion include fewer power conversion stages and minimized passive components. The ac-ac dual active bridge converter is controlled with phase shift modulation. Operating modes for both power flow directions are described and zero-voltage switching criteria are analyzed. One design example is presented. Simulation results verify the theoretical analysis.

Meeting Name

IEEE Energy Conversion Congress and Exposition (2009: Sep. 20-24, San Jose, CA)

Department(s)

Electrical and Computer Engineering

Sponsor(s)

National Science Foundation (U.S.)

Comments

This work was supported by the National Science Foundation through the FREEDM Systems Center (Award #0812121)

Keywords and Phrases

AC-AC Conversion; AC-AC Converters; Bi-Directional; Converter Topologies; Dual Active Bridge Converter; Four-Quadrant; H-Bridges; Operating Modes; Passive Components; Phase Shift Modulation; Power Conversion Stages; Power Flows; Simulation Result; State-Transformers; Energy Conversion; High Frequency Transformers; HVDC Power Transmission; Power Converters; Zero Voltage Switching; AC-AC Converter; Solid State Transformer

International Standard Book Number (ISBN)

9781424428939

International Standard Serial Number (ISSN)

2329-3721; 2329-3748

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2009 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

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