Zero frequency rotor position detection for synchronous PM motors

Author

Consoli, Alfio ; Scarcella, Giuseppe ; Tutino, Giuseppe ; Testa, Antonio

Author_Institution

DEES, Catania Univ., Italy

Volume

2

fYear

2000

fDate

2000

Firstpage

879

Abstract

The paper presents a simple but effective approach to determine the position of the rotor in synchronous PM machines at any operating condition, including very low and zero speed. The proposed approach is based on the addition of a high frequency stator voltage component and on a demodulation of the zero sequence voltage. Compared to previous sensorless schemes, it allows zero speed operations, does not need any initial identification of the rotor position, and can be inexpensively implemented. Experimental tests are shown in order to practically confirm the expected features of the proposed system

Keywords

control system synthesis; machine testing; machine theory; machine vector control; parameter estimation; permanent magnet motors; position control; rotors; synchronous motors; velocity control; control design; control performance; high frequency stator voltage component; operating condition; synchronous PM motors; zero frequency rotor position detection; zero sequence voltage demodulation; zero speed operations; Demodulation; Filtering theory; Frequency; Rotors; Sensorless control; Stators; Synchronous motors; System testing; Torque control; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2000. PESC 00. 2000 IEEE 31st Annual

Conference_Location

Galway

ISSN

0275-9306

Print_ISBN

0-7803-5692-6

Type

conf

DOI

10.1109/PESC.2000.879930

Filename

879930