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Modelling and Validation of a control System for a magnetic Levitation system

Rasch, Stefan (2015) Modelling and Validation of a control System for a magnetic Levitation system. Master's, Universität Bremen.

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Future missions for space-based experiments in gravitational physics require a drag-free Gravitational Reference Sensor. Such a setup requires a spherical test mass, where the position of the mass is determined by laser interferometry. The concept of using the surface of a levitating sphere as the measurement mirror for the interferometer has to be proven. Therefore, an inertial reference sensor is currently under development at Airbus Defence and Space GmbH. In this setup the sphere will be levitated through magnetic force. This thesis presents the development of the control system for the magnetic levitation setup, which consists of two current controlled electro magnets and two light barriers for the position estimation. Based on theoretical and practical investigations two controllers are designed from the identi�ed system model. Firstly a gain scheduled full state feed back controller and secondly a reduced order state controller is designed. As a result the experimentally evaluated controllers allow the sphere to oat in a range of 1mm with an error less then 1 �m. This allows the further investigation of the inertial reference sensor.

Item URL in elib:https://elib.dlr.de/103557/
Document Type:Thesis (Master's)
Title:Modelling and Validation of a control System for a magnetic Levitation system
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:12 November 2015
Refereed publication:No
Open Access:No
Keywords:Gravitational Reference Sensor, magnetic Levitation System, Interferometer, inertial reference sensor
Institution:Universität Bremen
Department:System Engineering
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Systems Enabling Technologies
Deposited By: Hüls, Simone
Deposited On:31 Mar 2016 12:43
Last Modified:05 Oct 2016 14:45

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