Star-connected
and
delta-connected
circuits
of
fractional
slot
concentrated
winding
in
permanent
magnets
synchronous
machines
(SMPM)
are
described
in
the
paper.
Advantages
and
drawbacks
of
these
winding
circuit
types
are
shown.
Investigation
results
on
the
characteristics
degradation
in
the
machines
with
fractional
slot
concentrated
windings
owing
to
delta-connected
circuit
are
presented.
A Novel Five Phase Fractional Slot Concentrated Winding with Low Space Harmonic Contents
