Discussion
Field-oriented control of an induction motor resolves the stator current into
Answer: B
Correct answer: flux-producing and torque-producing components
Field-oriented control transforms the stator current into a frame aligned with the rotor flux, giving \( i_d \) along the flux and \( i_q \) in quadrature with it. The two can then be commanded separately, exactly as field and armature current are in a separately excited dc machine, so torque responds without disturbing the flux. This decoupling is what gives a vector drive its fast torque response.
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