The University of Alabama in HuntsvillePropulsion Research Center

UAH - 5

Space Solar Power Technical Interchange Meeting 2SSP TIM 2

Executive Summary

Submitted to

Joe Howell, COTRContract No. NAS8-97095

Task No. H-30192D

National Space and Aeronautic AdministrationMarshall Space Flight Center

Marshall Space Flight Center, AL 35812

Prepared by

_im Sandersand

Dr. Clark W. Hawk

Propulsion Research CenterThe University of Alabama in Huntsville

Huntsville, AL 35899

December 22, 1998

https://ntrs.nasa.gov/search.jsp?R=19990110663 2018-04-26T18:16:28+00:00Z

SSP TIM 2 Executive SummaryTable of Contents

List of Acronyms: ......................................................................................... 3Abstract ..................................................................................................... 51. Introduction and Background ................................................................... 5

2. Objectives ......................................................................................... 5

Part I Plenary Session Summary Results

.

4.5.6.7.8.9.10.11.12.13.14.15.16.1718.19.20.21.22

Systems Integration, Analysis, and Modeling ................................................ 6Supporting Infrastructure (Launch Vehicle Assessment)...Olds ........................... 7Wireless Power Transmission... Dickinson ................................................... 7Automation, Robotics, and Assembly...Hickey .............................................. 7Structural Concepts, Dynamics & Control, and Assembly .................................. 8Power Management and Distribution (PMAD)...Dolce ...................................... 9Advanced On-Board Propulsion...Olson ...................................................... 9

Solar Dynamic Power Generation System...Flood .......................................... 9Photovoltaic Conversion Technology...Flood .............................................. 10

Boeing End-to-End Architecture Study...Willenburg ...................................... 11Aerospace Corporation End-to-End Architecture Study...Penn .......................... 11Schafer Elliptical Orbit Architecture...Poulos ............................................... 12Environmental Factors...Anderson .......................................................... 12

Independent Economics and Market Analysis Working Group...Schaal ................ 13Dual Purpose Technology...Smitherman .................................................... 14AIAA Assessment...Grey ..................................................................... 14

ESA Study of SSP Offshore Rectenna Siting in Western Europe...Kassing ........... 15NASDA Space Solar Power Studies...Mori ................................................ 16SSP Sandwich Concept (Kobe University)...Kaya ........................................ 16Canadian SSP Initiative--An Update...Steiber ............................................. 17

Part II Plenary Summary Session

23. Systems Integration, Analysis, and Modeling IPT...Feingold ........................... 1824. System Architecture and Modeling IPT...Fiengold ........................................ 1925. FMCA...Parker ................................................................................. 2026. Infrastructure IPT...Nix ....................................................................... 2027. Wireless Power Transmission...Dickinson ................................................. 2028. Automation, Robotics, and Assembly IPT...Slms ......................................... 2129. Structural Concepts, Dynamics and Control IPT...Gilbert ................................ 2130. PMADs IPT...Dolce ........................................................................... 2231. Power Generation IPT... Dudenhoefer ....................................................... 2232. International Partners...Steiber ............................................................... 2333. Independent Economic and Market Analysis IPT...Fini ................................... 2434. Structures Control, Assembly, & Transportation IPT...Carrington ..................... 2435. Special Projects IPT... Harris ................................................................. 2536. Terrestrial Energy Storage for SSP System...Merryman .................................. 26

Appendix SSP TIM 2 Attendance List ................................................................ 27

2

List of

ACTAIAA

amp/cm 2ARCBorealisC&DHCMGCOTSCOTRCSADASAdBDC/RFEMFEMI

EPRIEOLESAETOEVAEx anteFMCAFYGEOGHzGN&CGWHRSTHTSCIAAMIPTIRRISP

II_S

ITUJPL

kgkmkWkWekWhLaRCLCCLDCLEOLeRCMBGMEOmnl

MPDMSFC

Acronyms:

Advanced Communication TechnologyAmerican Institute of Astronautics and Aeronautics

Amperes per square centimeterAmes Research Center

Sun Sync OrbitControl and Data HandlingControl Moment GyroCommercial-Off-The-ShelfContracting Officers Technical Representative

Canadian Space AgencyGerman AerospaceDecibelsDirect Current Radiation Frequency

Electromagnetic FrequencyElectromagnetic InterferenceElectrical Power Research Institute

End of Life

European Space AgencyEarth to OrbitExtra Vehicle Activity

PreexistingFunctional Mission Concept and Architecture

Fiscal YearGeostationary Earth Orbit

Giga hertzGuidance, Navigation, and Control

Giga wattsHighly Reusable Space TransportationHigh Temperature SuperconductorIntegrated Architecture Assessment Model

Integrated Product TeamInternal Rate of Return

In-Space PropulsionSpecific ImpulseInternational Space StationInternational Technical Union

Jet Propulsion Laboratory

KilogramsKilometerKilowattsKilowatts ElectricalKilowatt Hours

Langley Research CenterLife Cycle CostLess Developed CountriesLow Earth OrbitLewis Research Center

Multiple Band GapMedium Earth Orbitmillimeter

Magnetoplasma DynamicsMarshall Space Flight Center

3

Mwe

N/ANASANASDA

OMVPMADPRCPOSTR&DRLVR&TSD/PVSE&ISEPSiSOTASSMSSPTBDTIMTPSTRLOOMVUAHUSV-ticV/mVRC

Vs.WHOW/m 2

W/kgWPT

Megawatt electricalNot ApplicableNational Aeronautics and Space AdministrationNational Aeronautics and Space Development Agency (Japanese Space

Agency)Orbital Maneuvering VehiclePower Management and Distribution

Propulsion Research CenterTrajectory ModelResearch and DevelopmentReusable Launch Vehicle

Research and TechnologySolar Dynamic versus Photovoltaic (power generation)

Systems Engineering and IntegrationSolar Electric PropulsionSilconState-Of-The Art

Space Segment ModelSolar Space PowerTo Be Determined

Technical Interchange MeetingThermal Protection SystemTechnology Readiness LevelTug Orbit to Orbit Maneuvering VehicleUniversity of Alabama in HuntsvilleUnited StatesVolts direct current

Volts per meterVirtual Research CenterVersusWorld Health Organization

Watts per square meterWatts per kilogramWireless Power Transmission

4

Abstract

SSP TIM 2 was conducted September 21 _t through 24 '_ with the first part consisting of a

Plenary session. The summary results of this Plenary session are contained in part one of this

report.

The attendees were then organized into Working Breakout Sessions and Integrated Product

Team (IPT) Sessions for the purpose of conducting in-depth discussions in specific topic areasand developing a consensus as to appropriate study plans and actions to be taken. The second

part covers the Plenary Summary Session, which contains the summary results of the WorkingBreakout Sessions and IPT Sessions. The appendix contains the list of attendees.

The objective was to provide an update for the study teams and develop plans for subsequent

study activities.

This SSP TIM 2 was initiated and the results reported electronically over the Internet.

The International Space Station (ISS) could provide the following opportunities for conductingresearch and technology (R&T) which are applicable to SSP:

Automation and Robotics Advanced Power Generation Advanced Power Management & Distribution (PMAD) Communications Systems & Networks

Energy Storage In Space Propulsion (ISP) Structural Dynamics & Control, and Assembly Wireless Power Transmission

1.0 Introduction and Background

MSFC is conducting a Space Solar Power Concept Definition Study for NASA Headquarters

in response to strong interest expressed in SSP outside the Agency.

UAH Propulsion Research Center hosted SSP TIM 2 to facilitate International participation

(Japan, Canada, and Germany) and open discussions with all data freely exchanged.

This TIM was conducted making maximum use of the lnternet and the MSFC Online Project

Management System, Virtual Research Center (VRC). For instance, the announcement,invitations, and agenda were put on the net. Other invitees not registered on the VRC were

contacted by electronic email.

The 550 Vu-graphs presented at this TIM will be made available through Joe Howell, MSFCProject Manager telephone No. (256) 544-8491, and Fax No. (256) 544-6669 or email

joe.howell@ msfc.nas_.gov.

A list of SSP TIM 2 attendees with their email addresses is contained in the Appendix. ThisExecutive Summary will be distributed by email and put on the MSFC Online Project

Management System, VRC.

2.0 Objectives

The objectives of the NASA SSP study is to identify and refine commercially

approaches and to enable choices that preserve and create options for"

viable

TechnologyInvestmentRegulatoryStrategi