Title :
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
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;
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
DOI :
10.1109/SECON.1994.324359
