Abstract

This paper gives a comparative performance analysis of Singly Fed Induction Generator (SFIG) and Doubly Fed Induction Generator (DFIG) systems driven by variable pitch wind turbines of same generation capacity of 9 MW. For reactive power compensation of SFIG system driven wind turbine STATCOM is used while DFIG system driven wind turbine is capable of reactive power compensation. The performance analysis is done in study state and dynamic state using simulated results of MATLAB/simulink. This paper shows that DFIG systems offer several advantages in comparison to SFIG systems. DFIG system exhibits better Power Quality as compared to SFIG. Less flicker also improve system efficiency as turbine speed is adjusted as a function of wind speed to maximize output power. FIG systems are cost effective and provide simple pitch control.

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