Spacecraft Attitude and Angular Rate Tracking using Reaction Wheels and Magnetorquers
| Autor: | Mariusz Eivind Grøtte, Jesper Abildgaard Larsen, Egidijus Surma, Tor Arne Johansen, Jan Tommy Gravdahl, Edgard Martinez Vidal |
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| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Ground track Spacecraft business.industry Settling time Computer science 020208 electrical & electronic engineering 02 engineering and technology Reaction wheel Magnetorquer Computer Science::Robotics Attitude control 020901 industrial engineering & automation Control and Systems Engineering Control theory Physics::Space Physics 0202 electrical engineering electronic engineering information engineering CubeSat business Quaternion |
| Zdroj: | IFAC-Papers |
| ISSN: | 2405-8963 |
| DOI: | 10.1016/j.ifacol.2020.12.1924 |
| Popis: | Spacecraft remote sensing applications may require slew maneuvers that prioritize small ground track errors during imaging, low power consumption and quick settling time. This paper investigates attitude control with a time-varying reference for a spacecraft model actuated by reaction wheels and magnetorquers, showing (a) an analytical solution for obtaining the required reaction wheel momentum reference in a rotational maneuver; and (b) the conditions for asymptotic convergence of attitude and angular rate tracking using a quaternion-based nonlinear control law; and (c) simulation results for a 6U CubeSat in Low-Earth-Orbit performing fixed-vector pointing and slew maneuvers. In particular, if a remote sensing spacecraft shall execute a short slew maneuver and the collection of data is not required to follow a fixed ground track, then utilizing the reference quaternion propagated from initial condition may be preferred. Based on the simulated single-axis slew maneuvers, better attitude tracking performance may be achieved when the magnetorquers are actively managing the reaction wheel momentum, but decreasing their effects in the transient period may result in quicker settling time depending on chosen error tolerances. |
| Databáze: | OpenAIRE |
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