Title :
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
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;
Conference_Titel :
Innovative Smart Grid Technologies - Asia (ISGT Asia), 2012 IEEE
Conference_Location :
Tianjin
Print_ISBN :
978-1-4673-1221-9
DOI :
10.1109/ISGT-Asia.2012.6303171
