2019 EPIC: Dual Flying-Capacitor Active Neutral-Point-Clamped (ANPC) Multilevel Inverter

Page 9

Dual Flying Capacitor Multilevel Inverter: Soft Commutation for proposed DFC-ANPC Converter Off switches

On switches

Off Off switches switches

State 0P

+2E +2E

SS22

S2S22

C C22

C2 -2E -2E

+2E +2E

S2

S3

C1

Sʹ Sʹ22

C11

SS33 SS66

Sʹ4

-2E

S66

VA

S2

SS33

0

S6

S4Sʹ44

C2

Sʹ33

Sʹ4

-2E

Sʹ2SS55 Sʹ1

S5 V VAA

SS66

C22

Sʹ3

Sʹ3

SS22

VAA 0

44

C2

S1

Sʹ Sʹ11

S5

S3S C22

SS11

C1 Sʹ Sʹ22

S55

S33

0

S6

Sʹ Sʹ33

Sʹ22

Sʹ1

SS44

Sʹ Sʹ44

C11

Sʹ11

VA

State 0N +2E+2E

Sʹ2

SS55 V VAA 0

S4

State 0N

State 00

S1S11

Sʹ1

Outbound current

State 00

State State 0P 0P

S115 Sʹ Sʹ

Outbound current

Inbound current

SS11

Sʹ2 00

On switches

S1 C C11

C1

Inbound current

SS44

S3

Sʹ Sʹ44

S4

Sʹ Sʹ33

Sʹ4

S6

Sʹ3

-2E

-2E 9

Power Electronics Lab


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