Automatic and adaptive defluxing device and method implementing such a device

A vector control driving device for an electric motor suitable for receiving an operating setpoint, the motor comprising:

• a stator comprising windings, suitable for receiving a driving current and producing a rotating magnetic field, the windings of the stator generating a voltage at the terminals of the motor
• a rotor producing a magnetic field intended to follow the rotating magnetic field comprising:
• a means for generating a current in a vector domain,
• a computation means configured to carry out a transform of the current from the vector domain to a real domain allowing for the generation of the driving current,
• an inverse computation means configured to carry out an inverse transform of a parameter measured in the real domain on the stator windings into an inverse transform of the parameter in the vector domain,
• a means for comparing the value of the inverse transform of the parameter with a predefined maximum value of the parameter, the result of which makes it possible to drive the means for generating the current in the vector domain.