Effects of Couplings on the Collective Dynamics of Permanent-Magnet Synchronous Motors

Author

Du Qu Wei ; Bo Zhang ; Xiao Shu Luo ; Shang You Zeng ; Dong Yuan Qiu

Author_Institution

Coll. of Electron. Eng., Guangxi Normal Univ., Guilin, China

Volume

60

Issue

10

fYear

2013

fDate

Oct. 2013

Firstpage

692

Lastpage

696

Abstract

Recently, researchers have reported that couplings play a crucial role in determining important evolutions of nonlinear systems. In this paper, the collective dynamics of two coupled permanent-magnet synchronous motors (PMSMs) are investigated, and it is found that with positive and negative couplings, the coupled PMSMs display rich phenomena, such as complete synchronization, amplitude death (AD), antiphase synchronization, phase-flip transition, and so on. Among these collective behaviors, AD, which is of considerable importance in maintaining the secure and stable operation of coupled PMSMs, is extensively studied. The relationship among various dynamics and transitions to AD is also illustrated.

Keywords

machine theory; permanent magnet motors; synchronous motors; AD; PMSM; amplitude death; antiphase synchronization; collective dynamics; complete synchronization; permanent-magnet synchronous motors; phase-flip transition; Bifurcation; Chaos; Couplings; Eigenvalues and eigenfunctions; Oscillators; Synchronization; Synchronous motors; Amplitude death (AD); collective dynamics; coupled system; permanent-magnet synchronous motor (PMSM);

fLanguage

English

Journal_Title

Circuits and Systems II: Express Briefs, IEEE Transactions on

Publisher

ieee

ISSN

1549-7747

Type

jour

DOI

10.1109/TCSII.2013.2273845

Filename

6573337