Applying VRB-ESS in the DC micro-grid for green building electricity supply: Constructive suggestions to improve the overall energy efficiency

Author

Zhen Lu ; Jiyun Zhao ; Tseng, King-Jet ; Kian Wee Ng ; Yimin Rao

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

fYear

2013

fDate

22-25 April 2013

Firstpage

130

Lastpage

135

Abstract

This paper proposes comprehensive methods to improve the energy storage efficiency of the vanadium redox flow battery energy storage system (VRB-ESS) as well as the overall energy efficiency of the DC micro-grid for green building electricity supply. It includes a novel design concept of the bidirectional (charge/discharge) DC/DC converter circuits which link VRB with DC micro-grid, the principle of how to set the nominal voltage of the VRB and how to control these circuits´ parallel operation, as well as several energy efficiency improvement measures for the establishment and operation of VRB-ESS.

Keywords

DC-DC power convertors; building management systems; distributed power generation; energy conservation; energy storage; secondary cells; vanadium; DC microgrid; VRB voltage; bidirectional DC-DC converter circuits; electricity supply; energy storage efficiency; green building electricity supply; parallel operation; system battery VRB-ESS; vanadium redox flow battery energy storage system; Bidirectional control; Discharges (electric); Electricity; Energy storage; Insulated gate bipolar transistors; Relays; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems (PEDS), 2013 IEEE 10th International Conference on

Conference_Location

Kitakyushu

ISSN

2164-5256

Print_ISBN

978-1-4673-1790-0

Electronic_ISBN

2164-5256

Type

conf

DOI

10.1109/PEDS.2013.6527002

Filename

6527002