3 Phase Half Wafe

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3 Phase half-wave uncontrolled rectifier

Power Electronic Circuits - Fall 20061

3 Phase half-wave uncontrolled rectifier

5

1633

Vmean=

Vmax sin t . dt =

Vmax

2

2 3

6

V=3V

mean

2linemax

Power Electronic Circuits - Fall 20062

3 Phase half-wave controlled rectifier

Power Electronic Circuits - Fall 20063

3 Phase half-wave controlled rectifier

5+

16

33

Vmean=

Vmax sin t . dt =

Vmax cos

2 3

2

6+

V=3Vcos

mean

2linemax

Power Electronic Circuits - Fall 20064

3 Phase full-wave uncontrolled rectifier

Power Electronic

5

3 Phase full-wave uncontrolled rectifier

1633

Vmean=

0 Vmax cost.d (t) =

Vmax

6

V=3 V

mean

linemax

Power Electronic Circuits - Fall 20066

3 Phase full-wave controlled rectifier

Power Electronic Circuits - Fall 20067

3 Phase full-wave controlled rectifier

1 +

33

6

V=

V cost.d (t) =

V cos

mean

60+max

max

V=3 V

cos

mean

linemax

Power Electronic Circuits - Fall 20068

Power Electronic Circuits - Fall 20069

3 Phase full-wave half controlled rectifier

Power Electronic Circuits - Fall 200610