A Study on Improvement Magnetic Torque Characteristics of IPMSM for Direct Drive Washing Machine

Author

Jin, Chang-Sung ; Jung, Dae-Sung ; Kim, Ki-Chan ; Chun, Yon-Do ; Lee, Hyung-Woo ; Lee, Ju

Author_Institution

Dept. of Electr. Eng., Hanyang Univ., Seoul

Volume

45

Issue

6

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

2811

Lastpage

2814

Abstract

This paper presents a research on magnetic torque improvement of interior permanent magnet synchronous motor (IPMSM) for a direct drive washing machine by considering various barrier shapes. For the direct drive of washing machine, the IPMSM must have high magnetic torque at low speed in the laundry mode. However, the magnetic torque of it is decreased and torque ripple is also increased at the same time, when current phase angle is increased. By using finite element analysis (FEA), several characteristics such as d-, q-axis inductance, back electromotive force (EMF), average torque, torque ripple, and cogging torque are presented. Besides, high-temperature demagnetization which can occur in manufacturing time is considered. Finally, the analysis results are compared with experimental results to verify the proposed design.

Keywords

electric potential; finite element analysis; permanent magnet motors; synchronous motors; torque motors; washing machines; IPMSM; average torque; back electromotive force; cogging torque; current phase angle; d-axis inductance; direct drive washing machine; finite element analysis; high-temperature demagnetization; interior permanent magnet synchronous motor; laundry mode; magnetic torque characteristics; q-axis inductance; torque ripple; Barrier shape; direct drive; finite element method; interior permanent magnet synchronous motor (IPMSM); magnetic torque;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2009.2018667

Filename

4957731