Modeling and Control of a DFIG-Based Wind Turbine During a Grid Voltage Drop
Journal Title: Engineering, Technology & Applied Science Research - Year 2011, Vol 1, Issue 5
Abstract
Doubly-fed induction generators (DFIG) are widely used in wind energy generation systems. During a grid voltage drop, performance is degraded with rotor over current deteriorating the fault-ride through (FRT) capability of the DFIG wind-energy generation system. In this paper, a complete mathematical DFIG model is proposed. The rotor is considered fed by a voltage source converter whereas the stator is connected to the grid directly. Output power and electromagnetic torque are controlled using field-oriented control (FOC). Simulation results show the efficiency of the controller in exploiting the maximum power of wind.
Authors and Affiliations
A. Babaie Lajimi, S. Asghar Gholamian, M. Shahabi
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