Dynamic evaluation of two configurations for a hybrid DFIG-based wind turbine integrating battery energy storage system
Article first published online: 11 JUN 2014
Copyright © 2014 John Wiley & Sons, Ltd.
How to Cite
Sarrias-Mena, R., Fernández-Ramírez, L. M., García-Vázquez, C. A. and Jurado, F. (2014), Dynamic evaluation of two configurations for a hybrid DFIG-based wind turbine integrating battery energy storage system. Wind Energ.. doi: 10.1002/we.1776
- Article first published online: 11 JUN 2014
- Manuscript Accepted: 27 MAY 2014
- Manuscript Revised: 5 OCT 2013
- Manuscript Received: 11 JAN 2013
- University of Cádiz. Grant Number: FPI 2012-036
- Spanish Ministry of Science and Innovation. Grant Number: ENE2010-19744/ALT
- doubly fed induction generator;
- energy storage system;
- hybrid system;
- wind energy
Hybrid systems comprising battery energy storage systems (BESSs) and wind power generation entail considerable advances on the grid integration of renewable energy. Doubly fed induction generators (DFIGs) stand out among different wind turbine (WT) technologies. On the other hand, electrochemical batteries have proved to be valid for these purposes. In this paper, a comparative analysis is carried out between two alternative configurations for hybrid WT-BESS systems, where the BESS is connected either outside or inside the DFIG. The modeling of these two configurations and the control systems applied for achieving the coordinate operation of the energy sources (DFIG and batteries) are illustrated. The hybrid systems under study are evaluated by simulation under normal operation (wind speed fluctuations and grid demand changes) and grid faults. Simulation results show that both configurations improve the grid integration capability of the WT, although the configuration with external BESS presents better results since it can provide additional active/reactive power injection. Copyright © 2014 John Wiley & Sons, Ltd.