Analysis of permanent three-phase sinusoidal operation
Asynchronous machines - Continuous operation

Figure 5a shows a motor consisting of a stator and a rotor. Each carries a three-phase, two-pole winding, in accordance with the rotating field winding design.

The three stator windings are supplied with balanced, direct three-phase voltages u₁, u ₂, u ₃; the three rotor windings are star-connected, and short-circuited. We'll assign subscripts "a, b, c" to the rotor quantities.

The aim of this paragraph is to establish the operating equations for the assembly when the speed is constant and the current regime has been...