Author ORCID Identifier
Date Available
12-23-2023
Year of Publication
2021
Degree Name
Doctor of Philosophy (PhD)
Document Type
Doctoral Dissertation
College
Engineering
Department/School/Program
Mechanical Engineering
First Advisor
Dr. T. Michael Seigler
Abstract
This dissertation addresses control of relative positions and orientations of formation flying satellites using magnetic interactions. Electromagnetic formation flight (EMFF) is implemented, in which each satellite is equipped with a set of electromagnetic coils to generate an electromagnetic field. Traditional EMFF technique applies DC magnetic fields which lead to a nonlinear and highly coupled formation dynamics that allow for only position or orientation control of the satellites. We present a new frequency multiplexing method, which is a technique that uses multi-frequency sinusoidal controls, to approximately decouple the formation dynamics and to provide enough controls for both position and orientation control. Next, we develop a new decentralized EMFF strategy for controlling the relative positions and the relative orientations of the satellites, simultaneously. In addition, we address the problem of optimal control allocation. Analysis, numerical examples, and experimental demonstrations are used to validate the effectiveness of the control strategy.
Digital Object Identifier (DOI)
https://doi.org/10.13023/etd.2021.478
Funding Information
Funder: National Aeronautics and Space Administration
2017-2021
Recommended Citation
Abbasi, Zahra, "Electromagnetic Formation Control Using Frequency Multiplexing" (2021). Theses and Dissertations--Mechanical Engineering. 187.
https://uknowledge.uky.edu/me_etds/187
Included in
Acoustics, Dynamics, and Controls Commons, Controls and Control Theory Commons, Multi-Vehicle Systems and Air Traffic Control Commons, Navigation, Guidance, Control and Dynamics Commons
