Frequency-dependent performance design for time-varying networked system

Author

Uchimura, Yutaka ; Nagahara, Masanori

Author_Institution

Shibaura Inst. of Technol., Tokyo, Japan

fYear

2011

fDate

7-10 Nov. 2011

Firstpage

2578

Lastpage

2583

Abstract

Much research has investigated time-delay systems; in particular, controller designs based on Lyapunov-Krasovskii-based methods have been investigated extensively. However, most previous studies do not show their methodology regarding the shaping the frequency-dependent performance. This paper proposes a control design that enables us to shape the frequency-dependent performance using a modified Lyapunov-Krasovskii-based stabilizing condition. The stabilizing controller can be obtained by solving the condition formulated in LMI. The designed controller is evaluated using numerical simulations and it is applied to the velocity control of a DC motor. Experimental results verified that the proposed controller achieved better performance with less conservativeness and that it is applicable to real plants.

Keywords

DC motors; Lyapunov methods; angular velocity control; control system synthesis; delays; linear matrix inequalities; networked control systems; numerical analysis; stability; time-varying systems; DC motor; LMI; Lyapunov-Krasovskii-based stabilizing condition; controller design; direct current motor; frequency-dependent performance design; linear matrix inequalities; numerical simulation; stabilizing controller; time-delay system; time-varying networked system; velocity control; DC motors; Delay; Delay effects; Frequency control; Stability analysis; Symmetric matrices; Time varying systems;

fLanguage

English

Publisher

ieee

Conference_Titel

IECON 2011 - 37th Annual Conference on IEEE Industrial Electronics Society

Conference_Location

Melbourne, VIC

ISSN

1553-572X

Print_ISBN

978-1-61284-969-0

Type

conf

DOI

10.1109/IECON.2011.6119716

Filename

6119716