FIELD: electrical engineering.
SUBSTANCE: invention provides a power supply source comprising an asynchronous machine, an arrangement for driving a rotor of the asynchronous machine in rotation by an engine rotor and an electrical connection for powering electrical equipment by said rotor of the asynchronous machine, wherein the asynchronous machine is configured to receive AC electric power (AC) via a stator of the asynchronous machine, and it presents over a predetermined range of drive speeds of the rotor of the asynchronous machine under drive by the rotor of the engine, the efficiency in transferring electrical power from the stator to said rotor which is privileged relative to the efficiency, with which mechanical power is converted into electrical power.
EFFECT: mechanical power of rotation is converted into electrical power.
13 cl, 9 dwg
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