Computer-based temperature controller in an energy-conservative manner

Author

Huang, Xinjie ; Benton, Richard D.

Author_Institution

Diagnostic Instrum. & Anal. Lab., Mississippi State Univ., MS, USA

fYear

1994

fDate

10-13 Apr 1994

Firstpage

465

Lastpage

469

Abstract

The purpose of this work is to develop a computer-based temperature controller for use on board the NASA Space Shuttle for micro-gravity experiments. To meet the requirement of energy conservation and other system specifications, an improved ON-OFF type control scheme which includes a proportional-integral (PI) controller and a pulse-width modulator has been investigated. The comparison of the authors´ control algorithm, signal transfer technique and power conversion analysis with that of a conventional controller are presented. Computer implementation, including system hardware and software, are described in this paper. Finally the system performance is illustrated through experiment results

Keywords

computerised control; controllers; on-off control; proportional control; pulse width modulation; space vehicles; temperature control; two-term control; zero gravity experiments; NASA Space Shuttle; ON-OFF type control scheme; computer-based temperature controller; energy conservation; microgravity experiments; power conversion analysis; proportional-integral controller; pulse-width modulator; signal transfer technique; Control systems; Energy conservation; NASA; Pi control; Power conversion; Proportional control; Pulse modulation; Space shuttles; Space vector pulse width modulation; Temperature control;

fLanguage

English

Publisher

ieee

Conference_Titel

Southeastcon '94. Creative Technology Transfer - A Global Affair., Proceedings of the 1994 IEEE

Conference_Location

Miami, FL

Print_ISBN

0-7803-1797-1

Type

conf

DOI

10.1109/SECON.1994.324359

Filename

324359