Patent ID: 9692338
Date: 2017-06-27
CPC Classifications: H02P

Claim:
1. A vector control driving device for an electric motor configured to receive an operating setpoint, the motor comprising a stator comprising windings, the stator configured to receive a driving current and produce a rotating magnetic field, the windings of the stator configured to generate a voltage at terminals of the motor, the motor further comprising a rotor configured to produce a magnetic field configured to follow the rotating magnetic field, the driving device 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 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 windings of the stator into an inverse transform of the parameter in the vector domain; and a means for comparing a 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, wherein the current generated by the means for generating the current in the vector domain is a direct setpoint current established in Park coordinates, and the computation means is configured to receive a quadrature setpoint current established in Park coordinates and proportional to the operating setpoint.