Description du projet :
Satellites are all powered by solar panels. The panels are always oriented towards the sun, while the satellite is typically directed toward Earth. Consequently, the power transmission system is made with rings and brushes. The sliprings are currently used in the targeted applications but subject to wearing. A contactless system for the entire transmission of power and data can mitigate this risk. The overall activity objective is to develop, manufacture and test a Bread Board Model of Power and Data transmission product for rotating systems, scanning mechanisms for instance. The key points of such system are the efficiency and the reliability.
The first important aspect to be studied is the contactless power transfer. The idea is to use an insulated switching mode regulator without feedback between secondary and primary sides of the transformer. The core of the contactless data transfer is a pulse transformer, which is optimized for transmitting electrical signals with requested data rate.
The second important aspect that must be investigated is the contactless transmission of data.
The key idea is to build a system according to MIL-STD 1553 B, allowing the transfers of data via inductive coupling (transformer).
The whole activity includes electronic circuits and mechanical parts which will be treated differently. The mechanicals components will be fully in conformance with the space requirements. Concerning the electronic parts, the design will be made with COTS components and the BBM will not include any space compliant component. The main reason is the price and the delivery schedule to obtain such devices. Nevertheless, as far as possible the components used in the design will find their equivalent in the space grade components.
Forschungsteam innerhalb von HES-SO:
Coeudevez Pascal
, Gavin Serge
, Dolivo Yann
, Bovey Dominique
, Carpita Mauro
Partenaires académiques: IICT; IESE; Carpita Mauro, IESE
Durée du projet:
01.12.2010 - 31.12.2012
Montant global du projet: 121'000 CHF
Statut: Abgeschlossen
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