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Figure 14-158
In partial load operation of the motor, efficiency optimization uses the thermal motor model
to continuously determine the dependency between efficiency and flux, and from this it
calculates the optimum flux.
Figure 14-159
Efficiency optimization sets the optimum flux in the motor.
Figure 14-160
Depending on the operating point of the motor, the flux of the reduces or increases.
Parameters
The following list contains the parameters of the "Efficiency optimization" function.
SINAMICS G220 converter
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB
Predefined and variable quantities for motor efficiency
Calculating the optimum flux
Increasing efficiency by optimizing the flux in the motor
Functions
14.10 Closed-loop drive control
561
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