Modeling and Simulation of DFIG Wind Turbines for Smart Grids Applications

ONTIVEROS, L.J.; MERCADO, P.E.

Córdoba

Congreso; Congreso Internacional sobre Ciudades Inteligentes, Innovación y Sustentabilidad; 2016

CIECS (CONICET-UNC)

The double-feed induction generator (DFIG) is today the technology most widely used in wind turbines, owing to its high performance, its capability to capture the maximum wind energy, and the low cost of the induction machine. These features contribute to the continuous installation of the DFIG power generation in Smart Grids. As a result, in the near future, the DFIG technology may start to influence the behavior of smart grids by interacting with conventional generation, renewable generation and loads. Therefore, DFIG wind turbine models that can be integrated into power system simulation software are needed.The DFIG is a standard, wound rotor induction machine with its stator winding connected directly to the grid and its rotor windings connected to the grid trough an ac/dc/ac PWM converter. The ac/dc/ac converter normally consists of a machine-side converter and a grid-side converter, both of which are controlled by decoupled d-q control approaches. The detailed model of the DFIG demands high computational requirement, which increases when a wind farm is considered. The aim of this paper is, therefore, to propose an optimized model of the DFIG wind turbine appropriate for dynamic studies of smart grids.