Presentation 2008-06-27
A Novel Spacecraft Power System Based-on Electric Double Layer Capacitors
Masatoshi UNO, Hiroyuki TOYOTA,
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Abstract(in English) Electric double layer capacitors (EDLCs) have many advantages over existing battery technologies from perspectives of life, power capability, and low-temperature performance. However, the main drawback of using EDLCs as a main energy source for spacecrafts is that their voltages vary widely with charging/discharging, whereas output voltage must be supplied in a particular range determined by the load. Since the energy density of EDLC is quite lower than conventional batteries, very efficient energy conversion electronics, with which EDLCs can be discharged as efficiently and deeply as possible to utilize their stored energies, are required. In this paper, a novel spacecraft power system comprising a combination of selective intermediate taps and an unregulated dc-dc converter, with which the EDLCs can discharge very efficiently and deeply, is proposed and verified experimentally.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Electric Double Layer Capacitor / Intermediate Tap / Unregulated DC-DC Converter / Power System
Paper # SANE2008-38
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Conference Information
Committee SANE
Conference Date 2008/6/19(1days)
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Paper Information
Registration To Space, Aeronautical and Navigational Electronics (SANE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Novel Spacecraft Power System Based-on Electric Double Layer Capacitors
Sub Title (in English)
Keyword(1) Electric Double Layer Capacitor
Keyword(2) Intermediate Tap
Keyword(3) Unregulated DC-DC Converter
Keyword(4) Power System
1st Author's Name Masatoshi UNO
1st Author's Affiliation Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency()
2nd Author's Name Hiroyuki TOYOTA
2nd Author's Affiliation Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency
Date 2008-06-27
Paper # SANE2008-38
Volume (vol) vol.108
Number (no) 100
Page pp.pp.-
#Pages 5
Date of Issue