VSI INVERTER S 2 LEVEL INVERT ER MUL TILEVE L INVERTER SINGLE DC SOURC E DIODE CLAMPE D/NPC FLYING CAPACIT OR MULTIP LE DC SOURC E CASCADED H BRIDGE THREE LEVEL INVERTER FOR 690V APPLICATIONS
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7/18/2019 Analysis Diode clamped Multilevel inverter
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VSIINVERTER
S
2LEVEL
INVERTER
MULTILEVEL
INVERTER
SINGLEDC
SOURCE
DIODECLAMPED/NPC
FLYINGCAPACIT
OR
MULTIPLE DCSOURC
E
CASCADEDH BRIDGE
THREE LEVEL INVERTER FOR 690V
APPLICATIONS
7/18/2019 Analysis Diode clamped Multilevel inverter
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TWO LEVEL INVERTER:
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THREE LEVEL INVERTER
Diode Clamped coni!"#a$ion
7/18/2019 Analysis Diode clamped Multilevel inverter
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FL%IN& CAPACITOR CONFI&'RATION
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CASCADED H()RID&E CONFI&'RATION:
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t
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ANAL%SIS:
TOTAL HAR*ONIC DISTORTION+,(LEVEL-:
Sl No. Inverter Configuration Total Harmonic
Distortion- Voltage
Total Harmonic
Distortion-Current
1 Two level inverter 74.34 !.7"
# Dio$e clam%e$ t&ree level inverter 3".'" ##.17
3 (l)ing Ca%acitor t&ree level
inverter
!4.11 !4.'1
4 Casca$e$ H *ri$ge t&ree level
inverter
+7.,1 41.37
ODD ORDER HAR*ONICS:
$$ r$er
Harmonics
Two level
inverter
Dio$e clam%e$
t&ree level
inverter
(l)ing Ca%acitor
t&ree level
inverter
Casca$e$ H
*ri$ge t&ree
level inverter
T&ir$ 1.!, '.!1 #.#7 '.43
(ift& !.13 '.," #'.+1 7.!'
Sevent& #.+4 17.+1 3#.47 1+.!7
Nint& 1."3 '.'! 1.33 '."+
levent& ,.47 3.7' ,.71 1.+"
EVEN ORDER HAR*ONICS:
ven r$er
Harmonics
Two level
inverter
Dio$e clam%e$
t&ree level
inverter
(l)ing Ca%acitor
t&ree level
inverter
Casca$e$ H
*ri$ge t&ree
level inverter
Secon$ #.#1 '.#3 1."' '.!3
(ourt& '.37 '.#3 1.1' '.7"
Si/t& 1.3' '.," '."7 '.37
ig&t& '.4" '.#3 '.+7 '.4"
Tent& 1."3 '.#4 '.#, '.7!
Twelft& '.!+ '.#4 '.,, '."7
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