Siemens SINAMICS S Series - Figure 2-241 8946 - Current pre-control; current controller; gating unit (p3400.0 = 0)

Active Infeed
Function Diagrams
2-1369
© Siemens AG 2007 All Rights Reserved SINAMICS S List Manual (LH1), 07/2007
Figure 2-241 8946 – Current pre-control / current controller / gating unit (p3400.0 = 0)
- 8946 -
Function diagram
87654321
fp_8946_01_eng.vsd
DO: A_INF
SINAMICS S
13.04.05 V02.05.00
Active Infeed - Current pre-control / current controller / gating unit (p3400.0 = 0)
d
dt
d
dt
p3603
Factor D component
Factor D component
p3603
Kp
p3615
Tn
p3617
Integral component
r3618
r3619
Integral component
r3606
System deviation
System deviation
r3608
Current pre-control Closed-loop current control
+
–
+
+
+
+
+
–
Reactive current
fixed setpoint
p3610
+
+
p3611
Reactive current
Supplementary setpoint
[8940.8]
Differentiator
Kp Tn
Reactive curr. contr.
r0075
Reactive current setpoint
Differentiator
r0077
Active current setpoint
[8950.1]
r3633
Reactive component Usq
r3632
Active component Usd
[8950.1]
[8950.1]
[8950.1]
r0078
Active current, actual value
Kp Tn
Active curr. controller
<2>
<2>
p0115[0] (250.00 µs)
+
Filter compensation
Filter capacitance
p0221
<1>
<1> The filter compensation covers the reactive current requirement of a line filter.
This means that the required reactive power is then not taken from the line supply.
<2> For p3603 = 0, the D component is disabled.
r0076
Reactive current actual value