Coupled Field-Circuit Estimation of Operational Inductance in PM Synchronous Machines by a Real-Time Physics-Based Inductance Observer

Author

Sarikhani, Ali ; Nejadpak, Arash ; Mohammed, Osama A.

Author_Institution

Dept. of Electr. & Comput. Eng., Florida Int. Univ., Miami, FL, USA

Volume

49

Issue

5

fYear

2013

fDate

May-13

Firstpage

2283

Lastpage

2286

Abstract

This paper presents a new real-time inductance estimation method for 3-phase permanent magnet synchronous machine (PMSM), utilizing a physics-based inductance observer. The mathematical modeling, stability analysis, and transient analysis of the observer are developed and described in details. The inductance of a 3-phase, 250 W, radial flux PMSM was calculated by an electromagnetic field-circuit based finite-element analysis with motion. The numerical results are compared with the experimental results obtained from the developed inductance observer. The results show excellent agreement in steady state operating conditions.

Keywords

finite element analysis; observers; permanent magnet machines; synchronous machines; 3-phase permanent magnet synchronous machine; PM synchronous machines; coupled field-circuit estimation; electromagnetic ήeld-circuit based ήnite-element analysis; inductance; inductance observer; mathematical modeling; numerical results; observer; operational inductance; physics-based inductance observer; power 250 W; radial ίux PMSM; real-time inductance estimation method; real-time physics-based inductance observer; stability analysis; steady state operating conditions; transient analysis; Inductance calculation; permanent magnet synchronous machine; physics-based inductance observer;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2243715

Filename

6514748