Efficiency Optimization / Efficiency Opt.; Flux Setpoint Smoothing Time / Flux Setp T_Smth; Flux Setpoint Smoothed / Flux Setp Smooth; Field Weakening Operation Flux Setpoint Smoothing Time - Siemens SINAMICS G150 Manual

2 Parameters
2.2 List of parameters
p1580[0...n]

Efficiency optimization / Efficiency opt.

VECTOR_G (n/M) Can be changed: U, T
Data type: FloatingPoint32
P-Group: Closed-loop control
Not for motor type: PEM, REL, FEM
Min
0 [%]
Description: Sets the efficiency optimization.
When optimizing the efficiency, the flux setpoint of the closed-loop control is adapted as a function of the load.
For p1580 = 100 %, under no-load operating conditions, the flux setpoint is reduced to 50 % of the rated motor flux.
Note: It only makes sense to activate this function if the dynamic response requirements of the speed controller are low.
In order to avoid oscillations, if required, the speed controller parameters should be adapted (increase Tn, reduce
Kp).
Further, the smoothing time of the flux setpoint filter (p1582) should be increased.
p1582[0...n]

Flux setpoint smoothing time / Flux setp T_smth

VECTOR_G (n/M) Can be changed: U, T
Data type: FloatingPoint32
P-Group: Closed-loop control
Not for motor type: REL
Min
4 [ms]
Description: Sets the smoothing time for the flux setpoint.
r1583

Flux setpoint smoothed / Flux setp smooth

VECTOR_G (n/M) Can be changed: -
Data type: FloatingPoint32
P-Group: Closed-loop control
Not for motor type: REL
Min
- [%]
Description: Displays the smoothed flux setpoint.
The value is referred to the rated motor flux.
p1584[0...n] Field weakening operation flux setpoint smoothing time / Field weak T_smth
VECTOR_G (n/M) Can be changed: U, T
Data type: FloatingPoint32
P-Group: Closed-loop control
Not for motor type: PEM, REL
Min
0 [ms]
Description: Sets the smoothing time for the flux setpoint in the field-weakening range
Recommend.: Smoothing should be especially used if there is no regenerative feedback into the line supply. This means that the
DC link voltage can quickly increase in regenerative operation
Note: Only the flux setpoint rise is smoothed
392
Calculated: -
Dyn. index: DDS, p0180
Units group: -
Scaling: -
Max
100 [%]
Calculated: CALC_MOD_REG
Dyn. index: DDS, p0180
Units group: -
Scaling: -
Max
5000 [ms]
Calculated: -
Dyn. index: -
Units group: -
Scaling: PERCENT
Max
- [%]
Calculated: CALC_MOD_REG
Dyn. index: DDS, p0180
Units group: -
Scaling: -
Max
20000 [ms]
List Manual (LH2), 04/2014, A5E03263479A
Access level: 2
Func. diagram: 6722
Unit selection: -
Expert list: 1
Factory setting
0 [%]
Access level: 3
Func. diagram: 6722, 6724,
6725
Unit selection: -
Expert list: 1
Factory setting
15 [ms]
Access level: 4
Func. diagram: 6722, 6723,
6724
Unit selection: -
Expert list: 1
Factory setting
- [%]
Access level: 3
Func. diagram: 6722
Unit selection: -
Expert list: 1
Factory setting
0 [ms]
SINAMICS G130/G150