Short Notes: Phase Controlled Converter | Short Notes for Electrical Engineering - Electrical Engineering (EE) PDF Download

Download, print and study this document offline
Please wait while the PDF view is loading
 Page 1


 
 
 
 
 
Form factor 
 ?
or
o
V
FF
V
 
 
or
V : rms value of output voltage. 
 
o
V : Average value of output voltage. 
 
Ripple Factor 
RF = 
2
FF 1 ? 
Distortion factor 
?
01
or
V
DF
V
 
01
V : rms value of fundamental components of 
o
V 
or
V : rms value of output voltage. 
 
Total harmonic Distortion 
??
2
1
THD 1
DF
 
Single phase half wave uncontrolled rectifier 
 R – load RL – Load L – Load 
O
V 
m
V
?
 ? ?
m
V
1 cos
2
??
?
 
0 
O
I 
m
V
R ?
 ? ?
m
V
1 cos
2R
??
?
 
?
m
V
L
 
? ? ? ? ? ? ? 2 ? 
? ?
O
I max 
2
?
 
? ?
,
2
?
? 
? 
 
? = Extinction angle, Angle at which ? goes to zero. 
? If a free-wheeling diode is connected across the load (RL) that behaves as R-load as output 
voltage goes to zero after ? ? ? t when FD conducts. 
 
Page 2


 
 
 
 
 
Form factor 
 ?
or
o
V
FF
V
 
 
or
V : rms value of output voltage. 
 
o
V : Average value of output voltage. 
 
Ripple Factor 
RF = 
2
FF 1 ? 
Distortion factor 
?
01
or
V
DF
V
 
01
V : rms value of fundamental components of 
o
V 
or
V : rms value of output voltage. 
 
Total harmonic Distortion 
??
2
1
THD 1
DF
 
Single phase half wave uncontrolled rectifier 
 R – load RL – Load L – Load 
O
V 
m
V
?
 ? ?
m
V
1 cos
2
??
?
 
0 
O
I 
m
V
R ?
 ? ?
m
V
1 cos
2R
??
?
 
?
m
V
L
 
? ? ? ? ? ? ? 2 ? 
? ?
O
I max 
2
?
 
? ?
,
2
?
? 
? 
 
? = Extinction angle, Angle at which ? goes to zero. 
? If a free-wheeling diode is connected across the load (RL) that behaves as R-load as output 
voltage goes to zero after ? ? ? t when FD conducts. 
 
 
 
 
 
 
 
Single phase half wave controlled rectifier 
i) R – load  
? 
? ?
? ?
? ? ?
?
m
O avg
V
V 1 cos
2
 
? 
? ?
? ?
? ? ?
?
m
O avg
V
I 1 cos
2R
 
? 
? ?
?? ?
? ? ? ? ?
??
?
??
2
m
or
V sin2
V
42
 
? Input power factor = ?
2
or or
S S S
V R V
V I V
 
                                ?
m
S
V
 V
2
 
? a = firing angle 
 
ii) R – L load 
? 
? ?
? ?
? ? ? ?
?
m
o avg
V
V cos cos
2
 
? 
? ?
? ?
? ? ? ?
?
m
o avg
V
I cos cos
2R
 
? 
? ? ? ?
? ? ? ? ? ? ? ?
?
m
or
V 1
V sin2 sin2
2
2
 
? Circuit turn off time, 
? ?
? ? ?
?
?
c
2
t 
 
Single phase full – wave rectifier 
 
                                               
                                                 
 
 
Page 3


 
 
 
 
 
Form factor 
 ?
or
o
V
FF
V
 
 
or
V : rms value of output voltage. 
 
o
V : Average value of output voltage. 
 
Ripple Factor 
RF = 
2
FF 1 ? 
Distortion factor 
?
01
or
V
DF
V
 
01
V : rms value of fundamental components of 
o
V 
or
V : rms value of output voltage. 
 
Total harmonic Distortion 
??
2
1
THD 1
DF
 
Single phase half wave uncontrolled rectifier 
 R – load RL – Load L – Load 
O
V 
m
V
?
 ? ?
m
V
1 cos
2
??
?
 
0 
O
I 
m
V
R ?
 ? ?
m
V
1 cos
2R
??
?
 
?
m
V
L
 
? ? ? ? ? ? ? 2 ? 
? ?
O
I max 
2
?
 
? ?
,
2
?
? 
? 
 
? = Extinction angle, Angle at which ? goes to zero. 
? If a free-wheeling diode is connected across the load (RL) that behaves as R-load as output 
voltage goes to zero after ? ? ? t when FD conducts. 
 
 
 
 
 
 
 
Single phase half wave controlled rectifier 
i) R – load  
? 
? ?
? ?
? ? ?
?
m
O avg
V
V 1 cos
2
 
? 
? ?
? ?
? ? ?
?
m
O avg
V
I 1 cos
2R
 
? 
? ?
?? ?
? ? ? ? ?
??
?
??
2
m
or
V sin2
V
42
 
? Input power factor = ?
2
or or
S S S
V R V
V I V
 
                                ?
m
S
V
 V
2
 
? a = firing angle 
 
ii) R – L load 
? 
? ?
? ?
? ? ? ?
?
m
o avg
V
V cos cos
2
 
? 
? ?
? ?
? ? ? ?
?
m
o avg
V
I cos cos
2R
 
? 
? ? ? ?
? ? ? ? ? ? ? ?
?
m
or
V 1
V sin2 sin2
2
2
 
? Circuit turn off time, 
? ?
? ? ?
?
?
c
2
t 
 
Single phase full – wave rectifier 
 
                                               
                                                 
 
 
 
 
 
 
 
 
1 ?? 
full converter 
1 ?? 
Semi converter 
O
V 
?
?
m
2V
cos 
? ?
??
?
m
V
1 cos 
S1
I 
o
22
I
?
 
?
?
O
22
I cos
2
 
S
I 
o
I 
? ? ?
?
O
I 
DF 
22
?
 
? ?
?
? ? ? ?
22
cos
2
 
DPF ? cos ?
cos
2
 
IPF 
?
?
22
cos 
? ?
? ?
??
? ? ? ?
2
1 cos 
 
DPF: Displacement power factor = ? ?
S S1
cos angle b w V & I 
S1
I = fundamental components of 
S
I 
IPF: Input power factor 
IPF = DPF x DF 
DF: Distortion factor 
In case of continuous conductions, outgoing thyristors stop conduction before incoming 
thyristor start 
Load 
1 ?? 
Full converter 
1 ??  
Semi – converter 
       R – load 
? ?
? ? ?
?
m
o
V
V 1 cos 
? ?
? ? ?
?
m
o
V
V 1 cos 
       R – L load 
? ?
? ? ? ?
?
m
o
V
V cos cos 
? ?
? ? ?
?
m
o
V
V 1 cos 
       RLE – load  
? ? ? ?
??
? ? ? ? ? ? ? ? ? ?
??
?
??
m
o
V
V cos cos E ? ? ? ?
??
? ? ? ? ? ? ? ? ?
??
?
om
1
V V 1 cos E 
 
 
Page 4


 
 
 
 
 
Form factor 
 ?
or
o
V
FF
V
 
 
or
V : rms value of output voltage. 
 
o
V : Average value of output voltage. 
 
Ripple Factor 
RF = 
2
FF 1 ? 
Distortion factor 
?
01
or
V
DF
V
 
01
V : rms value of fundamental components of 
o
V 
or
V : rms value of output voltage. 
 
Total harmonic Distortion 
??
2
1
THD 1
DF
 
Single phase half wave uncontrolled rectifier 
 R – load RL – Load L – Load 
O
V 
m
V
?
 ? ?
m
V
1 cos
2
??
?
 
0 
O
I 
m
V
R ?
 ? ?
m
V
1 cos
2R
??
?
 
?
m
V
L
 
? ? ? ? ? ? ? 2 ? 
? ?
O
I max 
2
?
 
? ?
,
2
?
? 
? 
 
? = Extinction angle, Angle at which ? goes to zero. 
? If a free-wheeling diode is connected across the load (RL) that behaves as R-load as output 
voltage goes to zero after ? ? ? t when FD conducts. 
 
 
 
 
 
 
 
Single phase half wave controlled rectifier 
i) R – load  
? 
? ?
? ?
? ? ?
?
m
O avg
V
V 1 cos
2
 
? 
? ?
? ?
? ? ?
?
m
O avg
V
I 1 cos
2R
 
? 
? ?
?? ?
? ? ? ? ?
??
?
??
2
m
or
V sin2
V
42
 
? Input power factor = ?
2
or or
S S S
V R V
V I V
 
                                ?
m
S
V
 V
2
 
? a = firing angle 
 
ii) R – L load 
? 
? ?
? ?
? ? ? ?
?
m
o avg
V
V cos cos
2
 
? 
? ?
? ?
? ? ? ?
?
m
o avg
V
I cos cos
2R
 
? 
? ? ? ?
? ? ? ? ? ? ? ?
?
m
or
V 1
V sin2 sin2
2
2
 
? Circuit turn off time, 
? ?
? ? ?
?
?
c
2
t 
 
Single phase full – wave rectifier 
 
                                               
                                                 
 
 
 
 
 
 
 
 
1 ?? 
full converter 
1 ?? 
Semi converter 
O
V 
?
?
m
2V
cos 
? ?
??
?
m
V
1 cos 
S1
I 
o
22
I
?
 
?
?
O
22
I cos
2
 
S
I 
o
I 
? ? ?
?
O
I 
DF 
22
?
 
? ?
?
? ? ? ?
22
cos
2
 
DPF ? cos ?
cos
2
 
IPF 
?
?
22
cos 
? ?
? ?
??
? ? ? ?
2
1 cos 
 
DPF: Displacement power factor = ? ?
S S1
cos angle b w V & I 
S1
I = fundamental components of 
S
I 
IPF: Input power factor 
IPF = DPF x DF 
DF: Distortion factor 
In case of continuous conductions, outgoing thyristors stop conduction before incoming 
thyristor start 
Load 
1 ?? 
Full converter 
1 ??  
Semi – converter 
       R – load 
? ?
? ? ?
?
m
o
V
V 1 cos 
? ?
? ? ?
?
m
o
V
V 1 cos 
       R – L load 
? ?
? ? ? ?
?
m
o
V
V cos cos 
? ?
? ? ?
?
m
o
V
V 1 cos 
       RLE – load  
? ? ? ?
??
? ? ? ? ? ? ? ? ? ?
??
?
??
m
o
V
V cos cos E ? ? ? ?
??
? ? ? ? ? ? ? ? ?
??
?
om
1
V V 1 cos E 
 
 
Page 5


 
 
 
 
 
Form factor 
 ?
or
o
V
FF
V
 
 
or
V : rms value of output voltage. 
 
o
V : Average value of output voltage. 
 
Ripple Factor 
RF = 
2
FF 1 ? 
Distortion factor 
?
01
or
V
DF
V
 
01
V : rms value of fundamental components of 
o
V 
or
V : rms value of output voltage. 
 
Total harmonic Distortion 
??
2
1
THD 1
DF
 
Single phase half wave uncontrolled rectifier 
 R – load RL – Load L – Load 
O
V 
m
V
?
 ? ?
m
V
1 cos
2
??
?
 
0 
O
I 
m
V
R ?
 ? ?
m
V
1 cos
2R
??
?
 
?
m
V
L
 
? ? ? ? ? ? ? 2 ? 
? ?
O
I max 
2
?
 
? ?
,
2
?
? 
? 
 
? = Extinction angle, Angle at which ? goes to zero. 
? If a free-wheeling diode is connected across the load (RL) that behaves as R-load as output 
voltage goes to zero after ? ? ? t when FD conducts. 
 
 
 
 
 
 
 
Single phase half wave controlled rectifier 
i) R – load  
? 
? ?
? ?
? ? ?
?
m
O avg
V
V 1 cos
2
 
? 
? ?
? ?
? ? ?
?
m
O avg
V
I 1 cos
2R
 
? 
? ?
?? ?
? ? ? ? ?
??
?
??
2
m
or
V sin2
V
42
 
? Input power factor = ?
2
or or
S S S
V R V
V I V
 
                                ?
m
S
V
 V
2
 
? a = firing angle 
 
ii) R – L load 
? 
? ?
? ?
? ? ? ?
?
m
o avg
V
V cos cos
2
 
? 
? ?
? ?
? ? ? ?
?
m
o avg
V
I cos cos
2R
 
? 
? ? ? ?
? ? ? ? ? ? ? ?
?
m
or
V 1
V sin2 sin2
2
2
 
? Circuit turn off time, 
? ?
? ? ?
?
?
c
2
t 
 
Single phase full – wave rectifier 
 
                                               
                                                 
 
 
 
 
 
 
 
 
1 ?? 
full converter 
1 ?? 
Semi converter 
O
V 
?
?
m
2V
cos 
? ?
??
?
m
V
1 cos 
S1
I 
o
22
I
?
 
?
?
O
22
I cos
2
 
S
I 
o
I 
? ? ?
?
O
I 
DF 
22
?
 
? ?
?
? ? ? ?
22
cos
2
 
DPF ? cos ?
cos
2
 
IPF 
?
?
22
cos 
? ?
? ?
??
? ? ? ?
2
1 cos 
 
DPF: Displacement power factor = ? ?
S S1
cos angle b w V & I 
S1
I = fundamental components of 
S
I 
IPF: Input power factor 
IPF = DPF x DF 
DF: Distortion factor 
In case of continuous conductions, outgoing thyristors stop conduction before incoming 
thyristor start 
Load 
1 ?? 
Full converter 
1 ??  
Semi – converter 
       R – load 
? ?
? ? ?
?
m
o
V
V 1 cos 
? ?
? ? ?
?
m
o
V
V 1 cos 
       R – L load 
? ?
? ? ? ?
?
m
o
V
V cos cos 
? ?
? ? ?
?
m
o
V
V 1 cos 
       RLE – load  
? ? ? ?
??
? ? ? ? ? ? ? ? ? ?
??
?
??
m
o
V
V cos cos E ? ? ? ?
??
? ? ? ? ? ? ? ? ?
??
?
om
1
V V 1 cos E 
 
 
Read More
69 docs

Top Courses for Electrical Engineering (EE)

Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

shortcuts and tricks

,

Semester Notes

,

Sample Paper

,

Objective type Questions

,

mock tests for examination

,

ppt

,

Short Notes: Phase Controlled Converter | Short Notes for Electrical Engineering - Electrical Engineering (EE)

,

Viva Questions

,

Summary

,

MCQs

,

Short Notes: Phase Controlled Converter | Short Notes for Electrical Engineering - Electrical Engineering (EE)

,

study material

,

Free

,

pdf

,

Exam

,

practice quizzes

,

Important questions

,

past year papers

,

Previous Year Questions with Solutions

,

Extra Questions

,

Short Notes: Phase Controlled Converter | Short Notes for Electrical Engineering - Electrical Engineering (EE)

,

video lectures

;