Title :
Standalone operation of a DFIG-based wind turbine system with integrated energy storage
Author :
Pokharel, Bijaya ; Ojo, Olorunfemi ; Balogun, Adeola
Author_Institution :
Dept. of Electr. & Comput. Eng., Tennessee Technol. Univ., Cookeville, TN, USA
Abstract :
This paper presents a control scheme for autonomous operation of a doubly-fed induction generator (DFIG) based wind turbine system with an integrated battery storage system. The standalone DFIG feeds an electric load that is characterized to have linear and nonlinear load structures with varying reactive power demand and variation in system frequency. Therefore, a droop control is implemented by the DFIG´s line side converter (LSC) to regulate magnitude of voltage supplied to the load and system frequency. The connected battery storage system is controlled to supply extra active power demand when required for system frequency stability. Simulation results are presented.
Keywords :
asynchronous generators; frequency stability; load flow control; power convertors; reactive power control; secondary cells; voltage control; wind turbines; doubly fed induction generator; droop control; electric load; integrated battery energy storage; line side converter; nonlinear load structure; reactive power demand variation; standalone DFIG-based wind turbine system; system frequency stability; voltage magnitude; Batteries; Mathematical model; Reactive power; Rotors; Voltage control; Wind turbines; Battery Storage; DFIG wind turbine; Droop control; Voltage magnitude and frequency regulation;
Conference_Titel :
Power Electronics for Distributed Generation Systems (PEDG), 2015 IEEE 6th International Symposium on
Conference_Location :
Aachen
DOI :
10.1109/PEDG.2015.7223060
