
Recent Trends in Multilevel Inverter 19-11
have been reported [16–18], and together with open-end winding conguration they can produce dierent
i
nverter
c
ircuits
w
ith
m
uch
f
unctionality,
o
ne
o
f
w
hich
i
s
e
xplained
n
ext.
One
o
f
t
he
m
ost
o
ptimized
to
pology
f
or
m
ultilevel
i
nverter
i
s
p
resented
i
n
[
19]
(
Figures
1
9.15
a
nd
1
9.16).
is
i
s
a
5
-level
i
nverter
to
pology
w
ith
c
apacitor
v
oltage
b
alancing
a
nd
c
ommon
m
ode
v
oltage
e
limination
a
nd
i
s
a
c
ombination
o
f
d
ierent
c
oncepts
d
iscussed
e
arlier.
ere
a
re
t
wo
3
-level
N
PC
i
nverters
a
nd
t
wo
2
-level
i
nverters
f
eeding
a
n
o
pen-end
m
otor.
T
wo
3
-level
N
PC
i
nverters
f
eeding
t
he
o
pen-end motor will produce 5-level ...