Modelling of doubly fed induction generator based wind turbine

Abstract

There has been a constant rise in the use of renewable energy resources. Global wind energy capacity soared by a fifth to 238GW at the end of 2011. India being the 5th largest player globally, accounted for 16GW. Wind energy is an important form of renewable energy as there is no greenhousE gas emission compared to non-renewable fossil fuels. There has been a rising demand for wind energy ever since its first implementation. This project work studies the power-speed characteristics and the torque-speed characteristics and the fundamentals of wind electrical systems along with the modeling of the various wind turbine features and simulation of the same using MATLAB-SIMULINK. It deals with the vector control and modeling of the Doubly-Fed Induction Generator, which can be used to transmit power to the network through both the stator and the converters connected to the rotor. The turbine current, voltage, power and other characteristics are studied on variation of the grid parameters.