A metric for evaluation of the performance of saliency-tracking self-sensing control of PM motor

Author

de M Fernandes, Eisenhawer ; Oliveira, Alexandre Cunha ; Lima, A.M.N. ; Jacobina, Cursino B. ; Santos, Welflen R. N. ; Lorenz, Robert D.

Author_Institution

Fed. Univ. of Campina Grande, Campina Grande, Brazil

fYear

2013

fDate

27-31 Oct. 2013

Firstpage

801

Lastpage

807

Abstract

This paper presents a study on the performance of saliency-tracking self-sensing method for a permanent-magnet synchronous motor. It is shown that the high speed limit is a function of modulation harmonics and the extraction of the rotor information contained in the HF currents envelope as rotor speed increases. These effects degrade the rotor position signals and consequently the estimated rotor speed and the reference current. A method based on the maximum harmonic content in the reference current is detailed. The method determines the selection of observer bandwidth and the dynamic stiffness of the drive system. A complete set of simulation results is presented and validate the analysis proposed.

Keywords

machine control; observers; permanent magnet motors; synchronous motor drives; HF currents; PM motor; drive system dynamic stiffness; maximum harmonic content; modulation harmonic function; observer bandwidth selection; permanent-magnet synchronous motor; reference current; rotor information extraction; rotor position signals; rotor speed estimation; saliency-tracking self-sensing control; Bandwidth; Harmonic analysis; Observers; Rotors; Synchronous motors; Velocity control; Permanent-magnet synchronous motors; Self-sensing control; Signal injection method;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (COBEP), 2013 Brazilian

Conference_Location

Gramado

ISSN

2175-8603

Type

conf

DOI

10.1109/COBEP.2013.6785207

Filename

6785207