Type of Document	Dissertation
Author	Kim, Seong Joong
URN	etd-05222007-091329
Title	Modeling and analysis of spacecraft battery charger systems
Degree	PhD
Department	Electrical Engineering
Advisory Committee	Advisor Name Title Cho, Bo H. Committee Chair Johnson, Lee W. Committee Member Lee, Fred C. Committee Member Tam, Kwa-Sur Committee Member Vorperian, Vatche Committee Member
Keywords	Space vehicles Batteries Research.
Date of Defense	1991-04-01
Availability	restricted
Abstract Large-signal analysis of various spacecraft power systems is performed to predict the bus dynamics in various modes of operation. The large-signal trajectories of the system's operating point are analyzed employing qualitative graphical representation. The analyses are verified through simulation using EASY5 software. Small-signal dynamic characteristics of spacecraft battery charge converter systems are analyzed to facilitate the design of control loop for optimum performance and stability. Control-loop designs for the charge converters in bus voltage regulation mode, charge current regulation mode, and peak power tracking mode are discussed.
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