Type of Document Master's Thesis Author Makovec, Kristin Lynne Author's Email Address firstname.lastname@example.org URN etd-07242001-133151 Title A Nonlinear Magnetic Controller for Three-Axis Stability of Nanosatellites Degree Master of Science Department Aerospace and Ocean Engineering Advisory Committee
Advisor Name Title Hall, Christopher D. Committee Chair Kasarda, Mary E. F. Committee Member Lutze, Frederick H. Jr. Committee Member Keywords
- Spacecraft Attitude Dynamics
- Magnetic Control
- Three-Axis Stability
Date of Defense 2001-07-12 Availability unrestricted AbstractThe problem of magnetic control for three-axis stability of a spacecraft is examined. Two
controllers, a proportional-derivative controller and a constant coefficient linear quadratic
regulator, are applied to the system of equations describing the motion of the spacecraft.
The stability of each is checked for different spacecraft configurations through simulations,
and the results for gravity-gradient stable and non gravity-gradient stable spacecraft are
compared. An optimization technique is implemented in an attempt to obtain the best
performance from the controller. For every spacecraft configuration, a set of gains can be
chosen for implementation in the controller that stabilizes the linear and nonlinear equations of motion for the spacecraft.
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