Elektrodynamische Maschine, nämlich Synchrongenerator und/oder -motor

摘要

The invention relates to an electrodynamic machine, especially a synchronous generator and/or motor, comprising rotor and stator coil pairs, each having any number of pole pairs. Said rotor and stator coil pairs are aligned in relation to each other and are situated along the machine axle. The rotors have electrically and mechanically connected rotating field coils which generate fields rotating in the opposite direction to the rotor. When the machine is operating as a motor, the stator coils of the coil pairs are each subjected to an alternating voltage of varying frequency and a free torque is introduced to the connected rotors or the rotor axle in dependence on the difference frequency. When the machine is operating as a generator, an outer torque acts upon the connected rotors or the rotor axle in the direction of rotation and produces a measurable voltage in a non-externally excited part of the stator. The frequency of said voltage depends on the rotary speed of the rotor, the number of pole pairs of both rotor parts, the stator parts and the excitation frequency.