Fault Ride through of Doubly Fed Induction Generator Wind Turbine Based on Supercapacitors Energy Storage
This paper proposes a low voltage ride through (LVRT) scheme of doubly fed induction generator (DFIG) based on the supercapacitors energy storage. The novel control strategy of the bi-directional converter and the grid side converter is established. Simulation model of the DFIG system is developed. Simulation results show that the presented scheme can efficiently reduce the DC-link overvoltage, supply reactive power to the power system through grid side converter, and help grid recovery under system fault, improving the LVRT capability of the system.
H. P. Zou et al., "Fault Ride through of Doubly Fed Induction Generator Wind Turbine Based on Supercapacitors Energy Storage", Applied Mechanics and Materials, Vols. 130-134, pp. 2851-2854, 2012