A unified control scheme of battery energy storage system based on cascaded H-bridge converter

Author

Qiang Chen ; Ning Gao ; Rui Li ; Xu Cai ; Zhigang Lu

Author_Institution

Wind Power Res. Center, Shanghai Jiaotong Univ., Shanghai, China

fYear

2014

fDate

14-18 Sept. 2014

Firstpage

2561

Lastpage

2566

Abstract

Cascaded H-bridge converter (CHBC) is a popular approach for massive battery energy storage system (BESS) connected to the medium-voltage grid. However multi-objective needs, including power control, state of charge (SOC) control, fault tolerant control and so on, makes the control system complicated. A unified control scheme is proposed in this paper. By evaluating the other control objects and power redistribution, the control system is simplified and the calculation result of zero-voltage is much clearer. In the end, a simulation model based on Matlab/Simulink is created and a 30kW laboratory prototype is built. The simulation and experimental results verify the feasibility of the proposed control scheme.

Keywords

battery management systems; bridge circuits; cascade networks; energy storage; fault tolerant control; power control; power convertors; power grids; secondary cells; BESS; CHBC; SOC control; battery energy storage system unified control scheme; cascaded H-bridge converter; fault tolerant control; medium-voltage grid; power control; power redistribution; state of charge control; zero-voltage calculation; Batteries; Fault tolerance; Fault tolerant systems; Multichip modules; System-on-chip; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2014 IEEE

Conference_Location

Pittsburgh, PA

Type

conf

DOI

10.1109/ECCE.2014.6953743

Filename

6953743