Control System With High-Speed and Real-Time Communication Links

Author

Li, Tianjian ; Fujimoto, Yasutaka

Author_Institution

Yokohama Nat. Univ., Yokohama

Volume

55

Issue

4

fYear

2008

fDate

4/1/2008 12:00:00 AM

Firstpage

1548

Lastpage

1557

Abstract

Recent technological advances have enabled distributed control systems to be implemented via networks. This allows feedback control loops to be closed over communication channels. This paper develops a control system with high-speed and real-time communication links. Two-degrees-of-freedom control is utilized in this servo control system, and sigma-delta modulation is employed to compress data and to transmit the signal over the transmission channels between the controller and the controlled plant. Simulation results show that the controller can compensate the possible existing noise in the transmission channels. In addition, the developed system is implemented in field-programmable gate arrays. We developed a real-time closed-loop control system that has a communication channel whose control-sampling period is 600 ns and can reduce the sampling period of the controller module to hundreds of nanoseconds.

Keywords

closed loop systems; distributed control; field programmable gate arrays; multivariable control systems; servomechanisms; communication channel; control system; control-sampling period; distributed control systems; feedback control loops; field-programmable gate arrays; high-speed communication links; real-time closed-loop control system; real-time communication links; servo control system; sigma-delta modulation; two-degrees-of-freedom control; Communication networks; field-programmable gate arrays (FPGA); field-programmable gate arrays (FPGAs); networked control systems (NCSs); sigma–delta modulation; sigma-delta modulation;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2008.917160

Filename

4441350