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Controller Design and Integrated Performance Tests on Nitrogen-Gas Reaction Control System of KSLV-I  

Sun, Byung-Chan (한국항공우주연구원 체계설계팀)
Park, Yong-Kyu (한국항공우주연구원 체계설계팀)
Oh, Choong-Suk (한국항공우주연구원 체계설계팀)
Roh, Woong-Rae (한국항공우주연구원 체계설계팀)
Publication Information
Aerospace Engineering and Technology / v.11, no.2, 2012 , pp. 195-207 More about this Journal
Abstract
This paper deals with attitude controller design and integrated performance tests on the nitrogen gas reaction control system of KSLV-I. Some major factors which are necessarily required in designing a stabilizing controller of reaction control system are investigated, and the corresponding equations are given. Experimental configurations and test conditions for system level integrated performance tests of the KSLV-I nitrogen gas reaction control system are summarized. It is shown that, based on the experimental data, operational performances of nitrogen gas reaction control system can be analyzed in terms of gas consumption, thrusting force, time delay, and specific impulse. It is also shown that a conformance of the controller to flight can be evaluated. Finally the onboard controller of KSLV-I reaction control system is shown to perform normally with enough stability margin via the first flight test result.
Keywords
KSLV-I; reaction control system; nitrogen gas; controller design; integrated performance test;
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