Control strategy of Li-Ion Battery module in Super UPS

Author

Jianan Zhou ; Haijin Li ; Zhaoyu Liu ; Changsheng Hu ; Dehong Xu

Author_Institution

Power Electron. Res. Inst., Zhejiang Univ., Hangzhou, China

fYear

2014

fDate

5-8 Nov. 2014

Firstpage

1236

Lastpage

1241

Abstract

Li-Ion Battery (LB) stack with bi-directional DC-DC converter is used as an energy storage module in Super Uninterrupted Power Supply (UPS). In this paper, the operating mode of the LB module with bi-directional converter is analyzed. The control scheme of the bi-directional DC-DC converter for LB Stack is introduced. A power management strategy for the LB module in super UPS is investigated. The LB module is used to co-ordinate with Gas Turbine (GT) or Fuel Cell (FC) source under grid fault, and co-ordinate with the photovoltaic (PV) unit to achieve maximal energy harvest. Experimental results on a 30kW parallel Buck/Boost converter is represented to verify the effectiveness of the power management strategy.

Keywords

DC-DC power convertors; battery storage plants; energy harvesting; fuel cells; gas turbines; lithium; photovoltaic power systems; power system management; secondary cells; uninterruptible power supplies; LB module; Li; PV unit; bidirectional DC-DC converter; control strategy; energy harvest; fuel cell; gas turbine; grid fault; lithium-ion battery module; parallel buck-boost converter; photovoltaic unit; power 30 kW; power management strategy; super UPS; uninterrupted power supply; Batteries; Bidirectional control; Fuel cells; System-on-chip; Uninterruptible power systems; Voltage control; Bi-directional DC/DC converter; Buck/Boost; Li-Ion battery; Super UPS;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Application Conference and Exposition (PEAC), 2014 International

Conference_Location

Shanghai

Type

conf

DOI

10.1109/PEAC.2014.7038039

Filename

7038039