Closed-loop thyristor current control
5-42
System- and communication configuring D7-SYS - SIMADYN D
Edition 06.2002
5.2.8 PC6, firing angle controller
Hardware address
Mode:7kHz/long pulses
Inverter control limit [
°
]
Rectifier control limit [
°
]
Main pulse length [ms]
Second pulse length [ms]
Time value firing pulse output
Time value PA6 start
Enable firing angle controller
60° value [16 MHz]
Firing angle actual value [ASG]
Firing angle setpoint [ASG]
Test: Firing angle setpoint [
°
]
Shift to inv. op.: Firing angle setpoint [
°
]
>Rect./TA max. angular change [
°
]
>Inv./TA max. angular change [
°
]
Tolerance pulse pos. from pos. error
#Error DIL
Control word
Mode, double firing
Handshake CAV
GV
BO
R
R
TS
TS
DI
DI
BO
DI
R
R
R
R
R
R
R
DI
W
BO
BO
AD
LPD
LDU
LDL
LMP
LFP
CTH
CTS
EN
X6R
XAS
WAS
AQL
AWS
DAG
DAW
DIL
DIZ
ICC
DZ
ACI
PC6
TCP
ACA
ZPA
ZZA
ZLA
ZXA
WAF
YEA
DZM
ZAH
ACO
QSF
TS
R
I
I
I
I
R
R
BO
W
BO
W
Process. time all FB [ms]
Process. time FB[
°
]
Firing pulse No. {1...6}
Firing pulse adjust. No.
Diag.:Status "double firing state mach."
Diag.:Pulse pos. error generation, status
Angular setpoint
System deviation, firing angle controller
Double firing active
Control HW ITDC
Handshake EMF
Fault
Fig. 5-23
PC6 represented in the CFC
The PC6 function block (Pulse Controller 6-pulse) is used to implement a
"Dead-beat" controller and the firing pulse generation for a 6-pulse line-
commutated converter for a fully-controlled bridge B6C or two fully-
controlled bridges in a circulating-current free, anti-parallel circuit
configuration B6(A)B6(C).
Various firing angle setpoints are used, depending on the operating
mode, entered from the switch-over logic stage.
•
Closed-loop controlled operation
(SOL.ISE = 0)
•
Shift to inverter operation
(SOL.QPI = 1)
•
Open-loop controlled operation
(SOL.ISE = 1
=
ˆ
test
operation)
The firing pulses for the thyristors of the SITOR set are generated on the
ITDC according to the specifications of FB PC6.
The firing pulses are output as 7[kHz] pulse chains (standard) or as long
pulses.
FB PC6 is always calculated as the last block in an interrupt task in
synchronism with the firing pulses.
Function
