SYSTEM AND METHOD FOR DETERMINING ROTOR SHAFT POSITION OF HIGH VOLTAGE PM AC SYNCHRONOUS MACHINES USING AUXILIARY WINDINGS

摘要

A system and method for determining rotor shaft position of high voltage permanent magnet AC synchronous machines (30) using auxiliary windings (22) utilizes a permanent magnet AC synchronous motor (20) including a stator having a main set of coils (26) and an auxiliary set of coils (22). A drive controller including a digital signal processor (32) in communication with the motor (20) utilizes a current and voltage measurements from the main (26) and auxiliary (22) coils to determine the position of the rotor shaft in a sensorless mode.