| 摘要 |
Electric power is produced by means of a synchronous alternator comprising a stator (16) having a stator winding and a rotor (12) movable with respect to the stator, which has n poles and induces, in stator winding, electric voltage while a stator current flows through stator winding. It is provided that the time rate of the voltage induced in a stator winding or in a plurality of the stator windings substantially approximates the current rate in a stator winding or the sum of at least m partial currents in m stator windings. The rotor poles are seen to have an arrowhead shape, when viewed from above. Furthermore, it is foreseen that, poles should have an asymmetric design or an asymmetric distribution over the circumference of the rotor (12).
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