Control scheme for power condition system of large capacity battery energy storage under unbalanced grid

Author

Chen, Zhong ; Ding, Ming ; Su, Jianhui ; Chen, Zinian ; Luo, Yaqiao ; Zheng, Guoqiang

Author_Institution

Res. Center for Photovoltaic Syst. Eng., Hefei, China

fYear

2012

fDate

21-24 May 2012

Firstpage

1

Lastpage

6

Abstract

The power condition system based on converter parallel for large capacity battery energy storage is introduced in this paper. For dispatchable battery energy storage system, the problems of power condition system with PQ control under unbalanced grid are emphasized. A new control scheme concerning both grid-connected current quality and circulating current elimination is proposed for power condition system under unbalanced grid. The simulation experiments with MATLAB/Simulink verifies the effectiveness of the proposed control scheme.

Keywords

energy storage; power convertors; power grids; power supply quality; MATLAB-Simulink; PQ control; circulating current elimination; control scheme; converter parallel; dispatchable battery energy storage system; grid-connected current quality; large capacity battery energy storage; power condition system; unbalanced grid; Batteries; Current control; Equations; Fluctuations; Mathematical model; Vectors; battery energy storage; circulating current; current controller; power condition system; symmetrical component extraction; unbalanced grid;

fLanguage

English

Publisher

ieee

Conference_Titel

Innovative Smart Grid Technologies - Asia (ISGT Asia), 2012 IEEE

Conference_Location

Tianjin

Print_ISBN

978-1-4673-1221-9

Type

conf

DOI

10.1109/ISGT-Asia.2012.6303171

Filename

6303171