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  4. Linear Parameter-Varying Kalman Filter for angular velocity estimation of a reaction sphere actuator for satellite attitude control
 
conference paper

Linear Parameter-Varying Kalman Filter for angular velocity estimation of a reaction sphere actuator for satellite attitude control

Gallego, Guzman Borque
•
Rossini, Leopoldo
•
Onillon, Emmanuel
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2017
2017 IEEE International Conference on Advanced Intelligent Mechatronics (AIM)
2017 IEEE International Conference on Advanced Intelligent Mechatronics (AIM)

This paper presents a novel angular velocity estimation strategy of a Reaction Sphere (RS) for satellite attitude control based on a Linear Parameter-Varying (LPV) Kalman Filter. The reaction sphere is a permanent magnet synchronous spherical actuator whose rotor is magnetically levitated and can be accelerated about any desired axis. The spherical actuator is composed of an 8-pole permanent magnet spherical rotor and of a 20-coil stator. The proposed technique relies on the implementation of a Kalman Filter observer over a LPV state-space model based on the rotor dynamics and the spherical harmonic decomposition of the magnetic flux density generated by the rotor. First, a theoretical development of the aforementioned estimator will be exposed, followed by a description of simulation and experimental set-ups for the tests. Finally, the proposed estimator is compared with the previous method used for angular velocity estimation based on the estimation of the back-EMF voltages induced in the coils, obtaining a significant reduction in amplitude and frequency of oscillations in the angular velocity control loop.

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Type
conference paper
DOI
10.1109/AIM.2017.8014042
Author(s)
Gallego, Guzman Borque
Rossini, Leopoldo
Onillon, Emmanuel
Karimi, Alireza  
Date Issued

2017

Publisher

IEEE

Published in
2017 IEEE International Conference on Advanced Intelligent Mechatronics (AIM)
Start page

352

End page

357

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LA  
Event nameEvent placeEvent date
2017 IEEE International Conference on Advanced Intelligent Mechatronics (AIM)

Munich, Germany

3-7 July 2017

Available on Infoscience
September 22, 2017
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/140795
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