COMMANDE SANS CAPTEUR REPOSANT SUR UN OBSERVATEUR POUR MOTEURS SYNCHRONES MONOPHASÉS À AIMANT PERMANENT EN FORME DE U

摘要

A method for controlling a U-shape single phase synchronous permanent magnetic motor (104) having a rotor and a stator and coupled to a single phase alternating current (AC) power source (102) through a switch includes estimating back-electromotive force and the position of the rotor based on a voltage feedback signal (112), a current feedback signal (116), and a phase feedback signal (109) indicative of a zero-crossing of the single phase AC power source (102). Once the speed and position of the rotor are determined, a controller can trigger a switch to supply power to the motor (104).