8
Electrical Engineering Power Electronics 1 Introduction to Power Electronics by D. W. Hart Chapter 5. AC to AC Converters
Electrical Engineering
Power Electronics
1
Introduction to Power Electronics
by D. W. Hart
Chapter 5. AC to AC Converters
Electrical Engineering
Power Electronics
2
THE SINGLE-PHASE AC VOLTAGE CONTROLLER
2 m
o,rms m
sin 2V1V V sin t d t 1
22
RMS OUTPUT VOLTAGE
Electrical Engineering
Power Electronics
3
OUTPUT VOLTAGE VS. DELAY ANGLE
Electrical Engineering
Power Electronics
4
SINGLE-PHASE CONTROLLER WITH AN R-L LOAD
Electrical Engineering
Power Electronics
5
wt 2
Van Vbn Vcn
0
02
6
3
6
4
6
5
6
7
6
8
6
9
6
10
6
11
6
6
2
Gs1
Gs2
Gs3
Gs4
Gs5
Gs6
Gs1
Gs2
Gs3
Gs4
Gs5
Gs6
wt 2
VanVab/2 Vac/2
0
02
6
3
6
4
6
5
6
7
6
8
6
9
6
10
6
11
6
6
2
Electrical Engineering
Power Electronics
6
van for 0 < α < 60° (α = 30° shown)
THREE-PHASE VOLTAGE CONTROLLERS (Y-Connected Resistive Load)
Electrical Engineering
Power Electronics
7
Electrical Engineering
Power Electronics
8
Delta-Connected Resistive Load
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