Abstract:
An induction generator is a type of electrical generator that is mechanically and
electrically similar to an induction motor .Induction generator produce electrical
power when their shaft is rotated faster than the synchronous speed of the
equivalent induction motor. To excite the generator, by feed reactive power can
be supplied from the grid as it used in double feed induction generator or from
the external capacitor bank connected on its terminal as it used in squirrel cage
(self excited induction generator) .
In this thesis, control schemes for the self-excited induction generator are
developed using MATLAB/SIMULINK. The mathematical model of IM is
developed and capacitor excitation is determined .Two control scheme are
applied one for The extracting maximum power from the wind turbine from cutin
to rated wind velocity by sensing only dc link power, (boost converter).
Second control strategy is developed to regulate voltage and frequency to give
constant voltage-constant frequency to an isolated load. The results are obtained
and discussed
