A modular multi-mission electrical power subsystem for geosynchronous satellites

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:163381

Canzano, S M; Webber, H F; Applewhite, A Z; Hosick, D K; Pollard, H E ^[1]

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1. Space Systems/Loral, Palo Alto, CA (United States)

A project was initiated to develop a Modular Multi-Mission Electrical Power Subsystem (EPS) that is easily adaptable from program to program with minimal non-recurring engineering. The primary design application is for a 8,125W, 100 V regulated dual-bus system for a high power Direct Broadcast Satellite (DBS) operated in geosynchronous orbit. The goals of this project were (1) to develop a 100 V power system for the DBS Satellite, (2) modularize to produce output power levels from 4kW to 8kW by the addition or subtraction of equipment ``building blocks``, (3) and to utilize a standard battery cell to allow a long term purchasing agreement for cell manufacture. This paper describes the design and implementation of the Multi-Mission EPS. The power requirements and configuration of the DBS satellite power system are presented. This is followed by a brief overview of each major component along with a description of the system operation. Next the mechanical packaging of the Power Control Unit (PCU) is presented. Finally the modularity of the system for future applications is discussed.

• OSTI ID: 163381
• Report Number(s): CONF-950729--
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
24 POWER TRANSMISSION AND DISTRIBUTION
25 ENERGY STORAGE
BATTERY CHARGERS
CONTROL EQUIPMENT
DC TO DC CONVERTERS
DESIGN
GALLIUM ARSENIDE SOLAR CELLS
GERMANIUM
LOAD MANAGEMENT
MODULAR STRUCTURES
NICKEL-HYDROGEN BATTERIES
PHOTOVOLTAIC POWER SUPPLIES
POWER DISTRIBUTION SYSTEMS
SATELLITES
SOLAR CELL ARRAYS
SOLAR TRACKING SYSTEMS
SPACECRAFT POWER SUPPLIES