WSEAS Transactions on Environment and Development
Print ISSN: 1790-5079, E-ISSN: 2224-3496
Volume 9, 2013
Robust Control of the Active and Reactive Power Exchanged With the Rotor of the DFIG and the Grid
Authors: ,
Abstract: The doubly fed induction generator (DFIG) is a most used machine in modern wind turbines thanks to its robustness, reliability and the reduced cost of converters associated. Unfortunately, this wind turbine even with the most advanced controls, the power exchanged with the rotor of the DFIG and the grid is fluctuated precisely during the fault which affects the stator voltages and causes a severe overshoot of the rotor current. For this reason that we proposed a robust control dedicated to smoothing the rotor power injected to the grid and to reduce the fluctuation of the DC bus voltage of the DFIG. The simulations on Matlab/Simulik/SimPowerSystems were presented to validate the effectiveness of the theoretical analysis of the proposed control.
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Keywords: Electrical grid, power quality, Robust control, doubly fed induction generator, fluctuation of the rotor power, DC bus voltage