Small-signal finite-element modeling of synchronous machines for sensorless applications

Author

Alberti, Luigi ; Gyselinck, Johan ; Bianchi, Nicola ; Morandin, Mattia ; Bolognani, Silverio

Author_Institution

Fac. of Sci. & Technol., Free Univ. of Bozen, Bozen, Italy

fYear

2012

fDate

2-5 Sept. 2012

Firstpage

2266

Lastpage

2272

Abstract

This paper presents a novel strategy to compute the high-frequency signal injection response of an electrical machine adopted in a sensorless electric drive. Thanks to the proposed strategy the self-sensing capability of the machine can be evaluated during the design process. A small-signal model of the machine in the d-q reference frame is derived and adopted to perform suitable finite-element (FE) simulation to compute the machine parameters at the injection frequency. The proposed procedure is validated by the comparison with other simulation strategies as well as with experimental results.

Keywords

finite element analysis; synchronous machines; FE simulation; d-q reference frame; design process; electrical machine; finite-element simulation; high-frequency signal injection response; injection frequency; machine parameters; self-sensing capability; sensorless applications; sensorless electric drive; small-signal finite-element modeling; small-signal model; synchronous machines; Computational modeling; Couplings; Eddy currents; Iron; Magnetostatics; Rotors; Saturation magnetization;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2012 XXth International Conference on

Conference_Location

Marseille

Print_ISBN

978-1-4673-0143-5

Electronic_ISBN

978-1-4673-0141-1

Type

conf

DOI

10.1109/ICElMach.2012.6350197

Filename

6350197