ABSTRACT
Induction generators (IGs) are today the most widespread type of electrical machines in renewable electric sources. The equations for the IG voltages are
U R i t
U R i t
U R i
d d
d d
d
= +
= +
= +
Ψ
Ψ
Ψsc dt
(4.1)
and
U R i t
U R i t
U R i
d d
d d
d
= +
= +
= +
Ψ
Ψ
Ψrc dt
.