A Back EMF Optimization of Double Layered Large-Scale BLDC Motor by Using Hybrid Optimization Method

Author

Kim, Yong Bae ; Choi, Hong Soon ; Koh, Chang-Seop ; Shin, Pan Seok

Author_Institution

Dept. of Electr. Eng., Hongik Univ., Jochiwon, South Korea

Volume

47

Issue

5

fYear

2011

fDate

5/1/2011 12:00:00 AM

Firstpage

998

Lastpage

1001

Abstract

This paper presents an optimization method of the back EMF for the double layered (double air gap) large-scale BLDC motor by using a Latin-hypercube sampling strategy. In order to drive the large-scale BLDC motors in parallel and multiphases, the back EMF of inner stator is equal to the back EMF of the outer. A new configuration of the double layered BLDC motor is also proposed for the compactness and high efficiency of the system. By the optimization, it is concluded that the skew angle and the thickness difference between the outer and inner magnets have important roles in synchronization and same magnitude of the back EMF, respectively.

Keywords

brushless DC motors; electric potential; optimisation; sampling methods; Latin-hypercube sampling strategy; back EMF optimization; double layered large-scale BLDC motor; hybrid optimization method; inner magnets; inner stator; Forging; Hypercubes; Optimization; Permanent magnet motors; Response surface methodology; Rotors; Torque; Cogging torque; EMF; Latin hypercube sampling (LHS); double layered BLDC motor; optimization; response surface method;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2010.2089608

Filename

5754767