A new bidirectional isolated converter for grid connection

Author

Kim, Myoungho ; Yoo, Anno ; Sul, Seung-Ki

Author_Institution

Sch. of Electr. Eng. & Comput. Sci. #24, Seoul Nat. Univ., Seoul, South Korea

fYear

2010

fDate

12-16 Sept. 2010

Firstpage

1793

Lastpage

1800

Abstract

This paper proposes a bidirectional isolated AC-AC converter for grid connection of various loads or energy sources. The converters can be utilized for interfacing renewable energy sources to the grid as well as traditional motor drives. It does not employ any line-frequency transformer, large electrolytic capacitors, and inductors to diminish the volume and enhance the reliability of the converter. Instead, it uses high-frequency transformers and small film capacitors. Also, Because of its modular structure, it can be extended easily according to the system voltage. Its configuration and the concept of power flow are introduced and the simulation results are presented.

Keywords

AC-AC power convertors; electrolytic capacitors; motor drives; power grids; power transformers; bidirectional isolated AC-AC converter; electrolytic capacitors; electrolytic inductors; grid connection; line-frequency transformer; motor drives; renewable energy sources; Bridge circuits; Capacitors; Converters; Inductors; Inverters; Pulse width modulation; Rectifiers; AC-AC power converter; Bidirectional power flow; Grid connection; HF transformer;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2010 IEEE

Conference_Location

Atlanta, GA

Print_ISBN

978-1-4244-5286-6

Electronic_ISBN

978-1-4244-5287-3

Type

conf

DOI

10.1109/ECCE.2010.5618135

Filename

5618135