TERMIUM Plus®

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power management and distribution system [1 record]

Record 1 2002-12-31

English

Subject field(s)
  • Spacecraft
CONT

Thermionic power converters impose unique operating requirements upon a power management and distribution (PMAD) system design. Single thermionic converters supply large currents at very low voltages. Operating voltages can vary over a range of up to 3 to 1 as a function of operating temperature. Most spacecraft loads require regulated 28-volts direct-current (Vdc) power. A combination of series-connected converters and power-processing boosters is required to deliver power to the spacecraft's payloads at this level.

OBS

power management and distribution system; PMDS: term and abbreviation officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Engins spatiaux
OBS

système de gestion et de distribution de l'alimentation; SGDA : terme et abréviation uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

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