Abstract
The constantly decreasing prices of the battery storage systems make them a very attractive solution for mitigating over voltages and voltage unbalance in low voltage grids with high penetration of renewable energy resources. A centralised storage device, connected at the end of the feeder can be a very effective solution for dealing with over voltages. The classical positive-sequence control strategy is usually employed in these devices to ensure a power exchange between the grid and the battery and vice versa. Nevertheless, the voltage unbalance cannot be mitigated by the classical control strategies. In this article, a modified three-phase damping control strategy is used to discharge and charge the battery storage system. This control strategy has an improved resistive behavior towards the zero- and negative-sequence components which mitigates the voltage unbalance by injecting or drawing asymmetrical phase currents. Thus both power quality problems are mitigated.
Original document
The different versions of the original document can be found in:
Document information
Published on 01/01/2018
Volume 2018, 2018
DOI: 10.1109/icrera.2018.8566779
Licence: CC BY-NC-SA license
Share this document
Keywords
claim authorship
Are you one of the authors of this document?