NASA Logo, External Link
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed AddThis share icon
 

Record Details

Record 99 of 43183
The Abacus/Reflector and Integrated Symmetrical Concentrator: Concepts for Space Solar Power Collection and Transmission
Author and Affiliation:
Carrington, Connie(NASA Marshall Space Flight Center, Huntsville, AL United States)
Fikes, John(NASA Marshall Space Flight Center, Huntsville, AL United States)
Gerry, Mark(NASA Marshall Space Flight Center, Huntsville, AL United States)
Perkinson, Don(Sverdrup Technology, Inc., Huntsville, AL United States)
Abstract: New energy sources are vital for the development of emerging nations, and the growth of industry in developed economies. Also vital is the need for these energy sources to be clean and renewable. For the past several years, NASA has been taking a new look at collecting solar energy in space and transmitting it to Earth, to planetary surfaces, and to orbiting spacecraft. Several innovative concepts are being studied for the space segment component of solar power beaming. One is the Abacus/Reflector, a large sun-oriented array structure fixed to the transmitter, and a rotating RF reflector that tracks a receiving rectenna on Earth. This concept eliminates the need for power-conducting slip rings in rotating joints between the solar collectors and the transmitter. Another concept is the Integrated Symmetrical Concentrator (ISC), composed of two very large segmented reflectors which rotate to collect and reflect the incident sunlight onto two centrally-located photovoltaic arrays. Adjacent to the PV arrays is the RF transmitter, which as a unit track the receiving rectenna, again eliminating power-conducting joints, and in addition reducing the cable lengths between the arrays and transmitter. The metering structure to maintain the position of the reflectors is a long mast, oriented perpendicular to the equatorial orbit plane. This paper presents a status of ongoing systems studies and configurations for the Abacus/Reflector and the ISC concepts, and a top-level study of packaging for launch and assembly.
Publication Date: Jan 01, 2000
Document ID:
20000074108
(Acquired Aug 04, 2000)
Subject Category: ENERGY PRODUCTION AND CONVERSION
Document Type: Preprint
Meeting Information: 35th Intersociety Energy Conversion Engineering Conference; 35th; 23-27 Jul. 2000; Las Vegas, NV; United States
Financial Sponsor: NASA Marshall Space Flight Center; Huntsville, AL United States
Organization Source: NASA Marshall Space Flight Center; Huntsville, AL United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: SOLAR ARRAYS; SOLAR COLLECTORS; SOLAR ENERGY CONVERSION; SOLAR GENERATORS; SOLAR POWER SATELLITES; POWER BEAMING; DEVELOPING NATIONS; ELECTRIC POWER SUPPLIES
Availability Source: Other Sources
Availability Notes: Abstract Only
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: August 22, 2011
Contact Us