Synchronous electric machine for aircraft, associated propulsion device, turboshaft engine and method

A method for controlling a synchronous electric machine for aircraft, the electric machine comprising a stator having two sets of stator coils configured to connect to different power converters, and a wound rotor inserted into the stator, the wound rotor comprising a rotor shaft and two rotor coils each supplied with a different supply current,

• the method comprising:
• deactivating the failed first set of stator coils by operating the power converter connected to the first set in such a way that the converter does not deliver any electrical power to the set of coils;
• supplying the second set of stator coils with electricity from the associated power converter;
• and
• supplying the second rotor coil with at least one associated supply current to generate a mechanical torque on the rotor shaft or to generate electrical energy at the terminals of the second set of stator coils.