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Author: | Jovanovic, Nemanja |
Title: | Aalto-2 satellite attitude control system |
Publication type: | Master's thesis |
Publication year: | 2014 |
Pages: | vi + 64 Language: eng |
Department/School: | Sähkötekniikan ja automaation laitos |
Main subject: | Space Robotics and Automation (AS3004) |
Supervisor: | Halme, Aarne ; Gustafsson, Thomas |
Instructor: | Khurshid, Osama |
Electronic version URL: | http://urn.fi/URN:NBN:fi:aalto-201409012592 |
OEVS: | Electronic archive copy is available via Aalto Thesis Database.
Instructions Reading digital theses in the closed network of the Aalto University Harald Herlin Learning CentreIn the closed network of Learning Centre you can read digital and digitized theses not available in the open network. The Learning Centre contact details and opening hours: https://learningcentre.aalto.fi/en/harald-herlin-learning-centre/ You can read theses on the Learning Centre customer computers, which are available on all floors.
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Location: | P1 Ark Aalto 1705 | Archive |
Keywords: | attitude control system B dot linear quadratic regulator state dependent Riccati Equation PD controller simulation Hardware In the Loop |
Abstract (eng): | The Attitude Control System for the Aalto-2 satellite was designed and verified if it meets the requirements of the QB50 project mission. Attitude control is achieved through the passive atmospheric drag torque stabilization and active control over magnetorquers. For the detumble phase, B dot control is used, and for nominal stabilization phase, PD, LQR and SDRE control methods were investigated and compared, through the computer simulations. Software algorithms for solving of Algebraic Matrix Riccati Equation (Schur decomposition and Kleinman) and system tasks were realized for the onboard computer and the overall system functionality was tested with the Hardware In the Loop method. LQR control method showed the best performance, though none of the controllers completely met the mission needs. |
ED: | 2014-09-21 |
INSSI record number: 49731
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