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I need some idea that how modeling AC motor

Creator
Creator

Hi again!
This time, I wonder how makes AC motor model in LMS Amesim
using AC motor performance curve like this

 

 

05.png

using Torque - RPM data map

 


At first, I am curious what is the input signal in LMS Amesim AC motor model
to make that kind of data map

 


input Torque like this signal?

 

07.png

 

 


or input angular speed speed signal?

 

08.png

 

 

 


Thank you in advance

 

 

 

2 REPLIES

Re: I need some idea that how modeling AC motor

Siemens Experimenter Siemens Experimenter
Siemens Experimenter

Hello,

regarding the speed input to your model, both are OK as you span the speed range of interest to get your plot.

Yet is would be easier to directly have the speed input on the machine shaft as it is done in the demo

qthelp://lmsimagine.lab/ame_dir/demo/Libraries/EMD/05_characteristics_for_induction_machine.html

Capture.PNG

 Also from what I see in your performance curve, your machine is in a close loop configuration with a torque control. The maximum torque/power displayed are the result of a current/voltage limitation and the voltage input to the machine will be modulated depending on the torque request(max here), speed and inverter voltage. You can setup such a close loop configuration using the field oriented vector control block EMDSCIMFOC01 for instance. Such a demo exists for a PMSM machine in:

qthelp://lmsimagine.lab/ame_dir/demo/Libraries/EMD/12_VectorControl.html

you can adapt this one for your SCIM. Enjoy!

 

Nicolas

Re: I need some idea that how modeling AC motor

Creator
Creator

thank you for your advice

 

I'll make an AC motor model according to that example Smiley Happy