Machine testing and parameter estimation

(fundamental component): [ \mathcalF_g(\theta) = \fracN_s I_s\sqrt2 , k_w , \cos(p\theta - \omega t) ] where ( N_s ) = turns per phase, ( I_s ) = rms current, ( k_w ) = winding factor, ( p ) = pole pairs.

Explanations using both the Double-Revolving Field Theory and the Cross-Field Theory. 5. Commutator Motors & Converters