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There is a doubt about the S12ZVM_FOC_Sensorless model from NXP

Question asked by Eden Li on May 11, 2017
Latest reply on May 26, 2017 by Eden Li

Shown as below,how to deduce the id_frac_est = (ud_frac*K1_n + w_n*iq_frac*K2_n + ed_frac*K3_n + id_frac_est*K4_n)? 

I don't know how to deduce it,and the id_frac_est  is deduced form  EMF?

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