Modeling of subharmonics and chaos in DC motor drives

Author

Chau, K.T. ; Chen, J.H. ; Chan, C.C. ; Chan, David T W

Author_Institution

Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong

Volume

2

fYear

1997

fDate

9-14 Nov 1997

Firstpage

523

Abstract

In this paper, the nonlinear dynamics of both voltage-mode and current-mode controlled DC motor drive systems are presented. The investigation is based on the derivation of the discrete mappings that describe their system subharmonics and chaos in the continuous conduction mode of operation. It illustrates that different bifurcation diagrams can be obtained by using different modes of control while varying the same system parameters. A unified modeling approach for the period-1 and hence the period-p orbits as well as their stability analysis during both voltage-mode and current-mode of control is proposed and verified

Keywords

DC motor drives; bifurcation; chaos; control system analysis; electric current control; harmonics; machine control; machine theory; stability; voltage control; DC motor drives; bifurcation diagrams; chaos modelling; continuous conduction mode; control simulation; current-mode control; discrete mappings; nonlinear dynamics; period-1 orbits; period-p orbits; stability analysis; subharmonics modelling; system subharmonics; unified modeling approach; voltage-mode control; Chaos; Control systems; DC motors; Differential equations; Diodes; Equivalent circuits; Feedback; Torque; Virtual colonoscopy; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control and Instrumentation, 1997. IECON 97. 23rd International Conference on

Conference_Location

New Orleans, LA

Print_ISBN

0-7803-3932-0

Type

conf

DOI

10.1109/IECON.1997.671788

Filename

671788