A grid-tie battery energy storage system

Author

Qian, Hao ; Zhang, Jianhui ; Lai, Jih-Sheng

Author_Institution

Future Energy Electron. Center, Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

fYear

2010

fDate

28-30 June 2010

Firstpage

1

Lastpage

5

Abstract

Battery energy storage system are widely used and become the most popular form of energy storage system. This paper proposes a grid-tie Lithium-ion battery based energy storage system, which consists of LiFePO₄ battery based energy storage and a high-efficiency bidirectional ac-dc converter. The battery management system (BMS) estimates the state of charge (SOC) and state of health (SOH) of each battery cell in the pack and applies active charge equalization to balance the charge of all the cells in the pack. The bidirectional ac-dc converter works as the interface between the battery pack and the ac grid. A 1-kW prototype has been designed and implemented to further validate the proposed architecture.

Keywords

AC-DC power convertors; battery management systems; energy storage; secondary cells; LiFePO₄; ac grid; active charge equalization; battery cell; battery management system; battery pack; grid-tie lithium-ion battery based energy storage system; high-efficiency bidirectional ac-dc converter; power 1 kW; state of charge; state of health; AC-DC power converters; Batteries; Computer architecture; Inverters; Microprocessors; System-on-a-chip; Battery energy storage system; battery management system; bidirectional ac-dc converter; inverter mode; rectifier mode;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Modeling for Power Electronics (COMPEL), 2010 IEEE 12th Workshop on

Conference_Location

Boulder, CO

Print_ISBN

978-1-4244-7462-2

Electronic_ISBN

978-1-4244-7461-5

Type

conf

DOI

10.1109/COMPEL.2010.5562425

Filename

5562425