Ion drive propulsion MPP power conditioning system without battery

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Ion drive propulsion MPP power conditioning system without battery

Maset, E. / Sanchis-Kilders, E. / Weinberg, A.H. / Ejea, J.B. / Ferreres, A. / Blanes, J.M. / Garrigos, A. / Carrasco, J.A.

Abstract

The research on selecting the Solar Array Regulator topology in case of Electrical Propulsion is still on going in future mission (Mercury orbit, Lunar Exploration, etc) and the power requirements in the range of 8 kW up to 14 kW will be increased. The authors will focus on BepiColombo mission, where solar electric propulsion (SEP) is used during the cruise period from Earth to Mercury. The Solar Array (SA) power increases with time and its associated propulsion unit has to take the maximum available power from the SA to use in the ion drive motor in order to reach Mercury within a reasonable time. Because the Ion Thrust is not required in eclipse, a Power System was designed that did not require a battery and therefore a considerable mass could be saved This paper describes a solution for the Mercury Transfer Module (MTM) Power Conditioning and Distribution Unit (PCDU) of the Solar Electric Propulsion Module (SEPM). The new conception is a Sequential Switching Shunt Maximum Power Regulator (S3MPR) consisting in a Sequential Switching Shunt Regulator (S3R), to keep the SA voltage at its Maximum Power Point (MPP) followed by a Boost regulator to produce a constant 100 V to supply the Electronic Propulsion (EP). The PCU has been verified by means of testing on a scaled-down Power Subsystem of 1 kW output power.

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Dokumentinformationen

Titel :

Ion drive propulsion MPP power conditioning system without battery

Beteiligte:

Maset, E. (Autor:in) / Sanchis-Kilders, E. (Autor:in) / Weinberg, A.H. (Autor:in) / Ejea, J.B. (Autor:in) / Ferreres, A. (Autor:in) / Blanes, J.M. (Autor:in) / Garrigos, A. (Autor:in) / Carrasco, J.A. (Autor:in)

Erschienen in:

European Space Power Conference, 8 ; 1-9

ESA SP - European Space Agency Special Publications ; 661 SP

Erscheinungsdatum :

2008

Format / Umfang :

9 Seiten, 11 Quellen

ISBN :

978-92-9221-225-4

ISSN :

0379-6566

Medientyp :