Siemens SINAMICS G150 - Current Controller Adaptation

Setpoint channel and closed-loop control
7.4 Vector speed/torque control with/without encoder
Converter cabinet units
Operating Instructions, 07/2016, A5E03347396A
465
7.4.8
Current controller adaptation
Current controller adaptation can be used to adapt the P gain of the current controller and
the dynamic precontrol of the I
q
current controller depending on the current.
The current controller adaptation is directly activated with setting p1402.2 = 1 or deactivated
with p1402.2 = 0.
It is automatically activated with p1959.5 (p1959.5 = 1) or deactivated (p1959.5 = 0).
Figure 7-23 Current controller adaptation for p0393 < 1, with p0391 < p0392
When swapping the I
q
interpolation points (e.g. for induction motors), the current controller
adaptation appears as follows:
Figure 7-24 Current controller adaptation with swapped I
q
interpolation points for p0393 > 1, with
p0392 < p0391
Function diagrams
FP 6714
Vector control - Iq and Id controller
Parameters
•
p0391
Current controller adaptation, starting point KP
•
p0392
Current co
ntroller adaptation, starting point KP adapted
•
p0393
Current controller adaptation P gain scaling
•
p1402
Current control and motor model configuration
•
p1703
Isq current controller precontrol scaling
•
p1715
Current controller P gain
•
p1717
Current control
ler integral time
•
p1959
Rotating measurement configuration