IEEE Transactions on Energy Conversion, Vol.24, No.3, 650-660, 2009
Improving Stability of a DFIG-Based Wind Power System With Tuned Damping Controller
This paper focuses on the implementation of a damping controller for the doubly fed induction generator (DFIG) system. Coordinated tuning of the damping controller to enhance the damping of the oscillatory modes is presented using bacterial foraging technique. The effect of the tuned damping controller on converter ratings of the DFIG system is also investigated. The results of both eigenvalue analysis and the time-domain simulation studies are presented to elucidate the effectiveness of the tuned damping controller in the DFIG system. The improvement of the fault ride-through capability of the system is also demonstrated.
Keywords:Bacterial foraging (BF);control;coordinated tuning;damping controller;doubly fed induction generator (DFIG);dynamic system stability;wind turbine (WT)