Title :
Using torque-ripple-induced vibration to determine the initial rotor position of a permanent magnet synchronous machine
Author :
Pekarek, Steve ; Beccue, Philip
Author_Institution :
Dept. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN
fDate :
5/1/2006 12:00:00 AM
Abstract :
In this letter, a method of determining the initial position of the rotor of a permanent magnet synchronous machine is derived based upon signatures in torque-ripple-induced vibration. Although requiring a vibration sensor, the method requires no knowledge of machine parameters, is applicable to both surface- and buried-magnet machines, and can be used under no load. Hardware validation has been performed using a surface-magnet machine, wherein a maximum error of 2.1deg (electrical) has been achieved using a start-up routine that requires 50 ms to complete
Keywords :
permanent magnet machines; rotors; synchronous machines; vibrations; buried-magnet machines; hardware validation; permanent magnet synchronous machine; rotor position; start-up routine; surface-magnet machines; torque-ripple-induced vibration; vibration sensor; Acoustic signal detection; Hardware; Magnetic sensors; Permanent magnet machines; Piezoelectric materials; Position measurement; Saturation magnetization; Stator cores; Torque control; Voltage; Initial position measurement; permanent magnet synchronous machines (PMSM); piezoelectric materials; torque measurement;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2006.874932
