Siemens SINAMICS S120 Manual De Listas página 2530

Current pre-control
I_act_set
r0077
[8940.8]
Differentiator
INF C_Filter
p0221
<1>
Filter compensation
INF I_react Z_set
+
p3611
+
+
Differentiator
INF I_react F_set
p3610
<1> Filter compensation is used to cover the reactive current demand of a line filter that arises on the basis of its capacitance depending on the operating point.
The reactive current required is thus not drawn from the supply system.
<2> With p3603 = 0, the D-component is switched off.
<3> Only with "Additional Control" function module activated (r0108.3 = 1).
1 2
DO: A_INF
Active Infeed - Current pre-control/current controller/gating unit (p3400.0 = 0)
d
dt
I_act_filt 7 fn_n Filter 7 I_act_filt 7 D_n
p5214 p5200.2 p5215
I_act_filt 7 type |y|
p5211
I_actr_act
r0078
[8950.1]
I_act_filt 7 fn_d I_act_filt 7 D_d
p5212 p5213
|y|
I_react_act
r0076
[8950.1]
d
dt
3 4
Current control
<2> <3>
INF I_ctrl D-comp INF I_ctrl D scal
p3603
p3604
INF I_act_ctrl Tn
r3618
r3606
f
INF I_act ctrl dev
Kp
–
+
INF I_ctrl Kp
p3615
<3> Active current ctrl
INF I_ctrl Kp scal
p3616
INF I_reactvCtrDev
Kp
r3608
+
–
Reactive current ctrl
r3619
f
INF I_rectv_ctrlTn
<2>
p3603
INF I_ctrl D-comp
5
fp_8946_55_eng.vsd
09.11.18 V05.02.03
U_set_filt 5 fn_n Filter 5 U_set_filt 5 D_n
p5204 p5200.0 p5205
Tn
|y|
+
+
f
U_set_filt 5 fn_d U_set_filt 5 D_d
INF I_ctrl Tn
p5202 p5203
p3617
Tn
|y|
+
+
f
6 7
Function diagram
SINAMICS S120/S150
p0115[0]
U_set_filt 5 type
p5201
INF U_inp Usd
r3632
[8950.1]
INF U_inp Usq
r3633
[8950.1]
I_react_set
r0075
[8945.1] <3>
8
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