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Re: Attempting to apply rkfixed to a PMSM motor

Ke = 81.7 V/krpm  measured

 

or

 

Ke = 81.7*60/(1000*2*pi) = 0.78 V/rad/sec

 

Kt = (3/2)^.5 * Ke = (3/2)^.5 *.78 = 0.955 Nm/Apk

 

or

 

Kt = (0.955 Nm/pk)*1.414 = 1.35 Nm/Arms

 

The the internal setting of our Voltech power analyzer measurements was incorrect.  So now the voltage and current measurements are in question.

 

Plan to retest in a few weeks.


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