Title :
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
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;
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
DOI :
10.1109/COMPEL.2010.5562425
