A family of bidirectional DC/DC converters suitable for asymmetrical power flow requirement

Author

Wu Chen ; Guangjiang Wang ; Xu Zhu

Author_Institution

Jiangsu Provincial Key Lab. of Smart Grid Technol. & Equip. Sch. of Electr. Eng., Southeast Univ., Nanjing, China

fYear

2013

fDate

15-19 Sept. 2013

Firstpage

4878

Lastpage

4881

Abstract

Bidirectional converters can realize bidirectional power transmission, which functionally equivalent to two unidirectional converters, hence, system size can be significantly reduced and power density can be increased. Based on the requirement of large power difference between bidirectional transmissions in some renewable energy applications, a family of bidirectional DC/DC converter with asymmetrical power transmission capability is proposed. Compared with the conventional one, the proposed bidirectional converter has the following advantages: lower cost, simple circuit topology and control. The potential applications of the proposed bidirectional converter are introduced and the topology derivation process is presented. The operation principle of the proposed bidirectional converter is verified by a 2.5 kW prototype converter.

Keywords

DC-DC power convertors; load flow; asymmetrical power flow requirement; asymmetrical power transmission capability; bidirectional DC-DC converters; bidirectional power transmission; circuit topology; power 2.5 kW; power density; power difference; renewable energy application; system size; topology derivation process; unidirectional converter; DC-DC power converters; Insulated gate bipolar transistors; Load flow; Power supplies; Power transmission; Topology; Wind farms;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2013 IEEE

Conference_Location

Denver, CO

Type

conf

DOI

10.1109/ECCE.2013.6647357

Filename

6647357