METHOD AND SYSTEM FOR CONTROLLING AN ELECTRIC MOTOR

摘要

This method, for controlling a permanent magnets electric motor (M) with an electric motor controller (S), comprises steps consisting in: a) sensing the rotation speed (Rs) of the rotor of the electric motor (M), b) measuring a rotation speed error (e) between a rotation speed request (R) and the rotation speed (Rs) sensed at step a) c) delivering the rotation speed error (e) to a repetitive controller (8) adapted to elaborate a corrective current (Crc) on the basis of the inverse of the rotation speed error (e). This method further comprises steps consisting in: d) sensing the angular position (Ps) of the rotor of the electric motor (M), e) delivering the angular position (Ps) measured at step d) to the repetitive controller (8) f) detecting the rotation speed error (e) at predetermined angular position intervals.