Dear Zoheir,

May be I am wrong but decoupling has no formal physical interpretation as it is mainly a way to determine a model for control.

Best regards,

Mohamed

Dear Mohmed,

Thanks to your intervention. But decoupling should be done at the level of the machine until the flux and torque are separately controlled.

Tir

Dear Zouheir

Yes, the Direct Torque Control (DTC) to separate the control of the stator flux(to control the speed) and the control of the torque by action on the rotor flux.

you can refer to the following figs for more knowledge