Data di Pubblicazione:
2010
Citazione:
DC/DC converter for the international space station / F. Belloni, P. G. Maranesi, M. Riva. - In: IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS. - ISSN 0018-9251. - 46:2(2010 Apr), pp. 5461645.623-5461645.634. [10.1109/TAES.2010.5461645]
Abstract:
A dc/dc converter for power distribution aboard the
International Space Station (ISS) and space vehicles employing
the 120 V dc bus is proposed. It is well suited to supply power
to multiple loads including peripheral low voltage point-of-load
(POL) regulators. The dc/dc converter is phase-shift controlled at
the constant frequency of 500 kHz. The topology is characterized
by distribution in a sequence of 4 metal-oxide semiconductor
field-effect transistors (MOSFETs), switched ON at zero voltage.
The linear model has first-order dynamics. Responses to
small and large load variations benefit from its advantageous
control features. A peculiar characteristic is its high dynamic
independence of load typology and output power. To focus on this
quality, dynamic performances are investigated through analyses,
simulations, and measurements considering three types of loads:
constant current, resistive, and constant power. Experimental data
from a 100 W prototype fit the model forecasts well.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
F. Belloni, P.G. Maranesi, M. Riva
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