Determination of saturated parameters of PM motors using loading magnetic fields

Author

Rahman, Azizur M. ; Zhou, Ping

Author_Institution

Fac. of Eng. & Appl. Sci., Memorial Univ. of Newfoundland, St. John´´s, Nfld., Canada

Volume

27

Issue

5

fYear

1991

fDate

9/1/1991 12:00:00 AM

Firstpage

3947

Lastpage

3950

Abstract

The precise knowledge of parameters is of critical importance for the correct performance prediction and design optimization of permanent magnet (PM) motors. A method for numerical calculation of the saturated direct and quadrature reactances X_d, X_q and excitation voltage due to magnets E₀, related to any arbitrary operational case, is proposed. Based on the evaluation of internal voltage from nonlinear load magnetic fields by finite-element method, the parameters X_d, X_q, and E_O are obtained. The proposed procedure has been applied to analyze a laboratory 25 hp PM motor and determine its saturated parameters. There exists a close agreement between the simulation and experimental results.

Keywords

load (electric); machine theory; magnetic fields; permanent magnet motors; 25 hp; PM motors; design optimization; excitation voltage; finite-element method; internal voltage; nonlinear load magnetic fields; performance prediction; permanent magnet motors; quadrature reactances; saturated direct reactances; saturated parameters; Design optimization; Finite element methods; Geometry; Magnetic analysis; Magnetic fields; Permanent magnet motors; Permanent magnets; Rotors; Synchronous motors; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.104967

Filename

104967