Hierarchical Triple-Maglev Dual-Rate Control Over a Profibus-DP Network

Author

Piza, Ricardo ; Salt, Julian ; Sala, Alessandra ; Cuenca, Angel

Author_Institution

Dept. de Ing. de Sist. y Autom., Inst. Univ. de Autom. e Inf. Ind., Valencia, Spain

Volume

22

Issue

1

fYear

2014

fDate

Jan. 2014

Firstpage

1

Lastpage

12

Abstract

This paper addresses a networked control system application on an unstable triple-magnetic-levitation setup. A hierarchical dual-rate control using a Profibus-decentralized peripherals network has been used to stabilize a triangular platform composed of three maglevs. The difficulty in control is increased by time-varying network-induced delays. To solve this issue, a local decentralized H∞ control action is complemented by means of a lower rate output feedback controller on the remote side. Experimental results show good stabilization and reference position accuracy under disturbances.

Keywords

H^∞ control; decentralised control; delay systems; feedback; field buses; hierarchical systems; magnetic levitation; networked control systems; time-varying systems; Profibus-DP network; Profibus-decentralized peripherals network; hierarchical triple-Maglev dual-rate control; local decentralized H_∞ control action; networked control system; output feedback controller; reference position accuracy; stabilization; time-varying network-induced delays; triangular platform; unstable triple-magnetic-levitation setup; Control systems; Delay; Equations; Magnetic levitation; Mathematical model; Synchronization; Voltage measurement; Dual-rate control systems; Profibus; linear matrix inequality; maglev; network delay; networked control systems; stability analysis;

fLanguage

English

Journal_Title

Control Systems Technology, IEEE Transactions on

Publisher

ieee

ISSN

1063-6536

Type

jour

DOI

10.1109/TCST.2012.2222883

Filename

6343257