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Research Papers

Stabilization of a Fractional-Order Nonlinear Brushless Direct Current Motor

[+] Author and Article Information
Sunhua Huang

Department of Electrical Engineering,
Northwest A&F University,
Yangling 712100, Shaanxi, China

Bin Wang

Department of Electrical Engineering,
Northwest A&F University,
Yangling 712100, Shaanxi, China
e-mail: binwang@nwsuaf.edu.cn

1Corresponding author.

Contributed by the Design Engineering Division of ASME for publication in the JOURNAL OF COMPUTATIONAL AND NONLINEAR DYNAMICS. Manuscript received April 18, 2016; final manuscript received October 7, 2016; published online January 20, 2017. Assoc. Editor: Gabor Stepan.

J. Comput. Nonlinear Dynam 12(4), 041005 (Jan 20, 2017) (6 pages) Paper No: CND-16-1198; doi: 10.1115/1.4034997 History: Received April 18, 2016; Revised October 07, 2016

This paper describes the stabilization of a fractional-order nonlinear brushless DC motor (BLDCM) with the Caputo derivative. Based on the Laplace transform, a Mittag-Leffler function, Jordan decomposition, and Grönwall's inequality, sufficient conditions are proposed that ensure the local stabilization of a BLDCM as fractional-order α: 0<α1 is proposed. Then, numerical simulations are presented to show the feasibility and validity of the designed method. The proposed scheme is simpler and easier to implement than previous schemes.

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Figures

Grahic Jump Location
Fig. 1

Chaotic vibration in the fractional-order BLDCM (19) with α=0.97 : (a) xd-xq-xa, (b) xd-t, (c) xq-t, and (d) xa-t

Grahic Jump Location
Fig. 2

The controlled fractional-order BLDCM system (41) with α=0.97

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