ABSTRACT
Let us consider that the rotor is still with the windings open. že rotor windings see the rotating magnetic Ÿeld, which rotates at an angular speed equal to ωs. As a consequence, the phase rotor-induced e.m.f. in the rotor phase winding can be written as
E Kr r s= Φω (4.2)
where Kr is the rotor winding constant Φ is the machine ¹ux ωs is the rotating magnetic Ÿeld angular speed
Both Ks and Kr coe¢cients take into account the characteristic of the stator and rotor winding (such as number of turns, winding topology, etc.).
