000231193 001__ 231193
000231193 005__ 20190812210001.0
000231193 0247_ $$2doi$$a10.1109/AIM.2017.8014042
000231193 037__ $$aCONF
000231193 245__ $$aLinear Parameter-Varying Kalman Filter for angular velocity estimation of a reaction sphere actuator for satellite attitude control
000231193 269__ $$a2017
000231193 260__ $$bIEEE$$c2017
000231193 336__ $$aConference Papers
000231193 520__ $$aThis paper presents a novel angular velocity estimation strategy of a Reaction Sphere (RS) for satellite attitude control based on a Linear Parameter-Varying (LPV) Kalman Filter. The reaction sphere is a permanent magnet synchronous spherical actuator whose rotor is magnetically levitated and can be accelerated about any desired axis. The spherical actuator is composed of an 8-pole permanent magnet spherical rotor and of a 20-coil stator. The proposed technique relies on the implementation of a Kalman Filter observer over a LPV state-space model based on the rotor dynamics and the spherical harmonic decomposition of the magnetic flux density generated by the rotor. First, a theoretical development of the aforementioned estimator will be exposed, followed by a description of simulation and experimental set-ups for the tests. Finally, the proposed estimator is compared with the previous method used for angular velocity estimation based on the estimation of the back-EMF voltages induced in the coils, obtaining a significant reduction in amplitude and frequency of oscillations in the angular velocity control loop.
000231193 700__ $$aGallego, Guzman Borque
000231193 700__ $$aRossini, Leopoldo
000231193 700__ $$aOnillon, Emmanuel
000231193 700__ $$g139973$$0240447$$aKarimi, Alireza
000231193 7112_ $$d3-7 July 2017$$cMunich, Germany$$a2017 IEEE International Conference on Advanced Intelligent Mechatronics (AIM)
000231193 773__ $$t2017 IEEE International Conference on Advanced Intelligent Mechatronics (AIM)$$q352-357
000231193 909C0 $$pLA$$0252053
000231193 909CO $$ooai:infoscience.tind.io:231193$$pconf$$pSTI
000231193 917Z8 $$x139973
000231193 937__ $$aEPFL-CONF-231193
000231193 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000231193 980__ $$aCONF