41
Output voltage:
With B2Hz (1Q): Ud[V]: Ud = Udi * (1 + cos ) / 2
With B2C (2Q): Ud = Udi * cos ; 4 Thyristors instead of 2 Thyristors and 2 Diodes
Line power rating / nominal transformer power: P[W] = 1.11 * Udi * Id
The factor (1+ cos ) / 2 for calculating the Ud can be taken from
the control characteristic.
Voltage and current characteristic, Circuit B2Hz:
Us = 400 V, 50 Hz, Id = 0.21 A, L
F
= 10 H, R
F
= 1475 , Udc = 310 V at = 45 degrees
Steuerkennlinie halbgesteuerte
2-pulsige Brückenschaltung B2HZ
0
0,2
0,4
0,6
0,8
1
0
30
60
90
120
150
180
Steuerwinkel Alpha in Grad
[1
+
c
o
s
(
A
lp
h
a
)]
/
2
Udc-SIMOREG
0,00
100,00
200,00
300,00
400,00
500,00
600,00
0
5
10
15
20
25
30
Zeit in [ms]
U
d
c
in
[
V
]
Laststrom Idc
0
0,05
0,1
0,15
0,2
0,25
0
5
10
15
20
25
30
Zeit in [ms}]
Id
c
i
n
[
A
]
Neutral
line
Control Characteristic
Two-pulse half-controlled Bridge B2Hz
Firing Angle in Degree
Load current
Line current
Line Current