Influence of sintered Nd-Fe-B magnet corrosion on permanent magnet synchronous motor performance

Author

Ertugrul, Baris T. ; Sincar, Eyyup ; Demir, Yigit ; Aydin, M.

Author_Institution

R&D Dept., ASELSAN Inc., Ankara, Turkey

fYear

2013

fDate

10-13 Nov. 2013

Firstpage

2935

Lastpage

2940

Abstract

Permanent magnet (PM) synchronous motors have found numerous applications over the last two decades due to their high torque to weight ratio and efficiency. However, one of the main drawbacks of the PM motors is the magnet corrosion. This paper investigates the influence of magnet corrosion on the performance of surface mounted permanent magnet motors. Un-corroded and corroded magnet rotors are used to investigate the motor performance including voltage and torque constants. It has been found out that the corroded rotor does not degrade the motor performance even after the intense corrosion tests if good quality NdFeB magnets are used.

Keywords

boron; corrosion; iron; neodymium; permanent magnet motors; synchronous motors; torque; NdFeB; PM motor; corroded magnet rotor; sintered magnet corrosion; surface mounted permanent magnet synchronous motor; torque constant; Brushless motors; Corrosion; Magnetic flux; Permanent magnet motors; Rotors; Synchronous motors; Torque; Brushless motors; Finite element analysis; Magnet corrosion; Permanent magnet motor;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE

Conference_Location

Vienna

ISSN

1553-572X

Type

conf

DOI

10.1109/IECON.2013.6699597

Filename

6699597