Wide Bandgap Semiconductor Based Solid State Smart Circuit Protection, Phase I

Metadata Updated: February 28, 2019

Advanced solid state power component technology is necessary for future hybrid aircraft systems with increased power demands. There is a need for adequate circuit protection in these high powered electrical systems to achieve safety, reliability, and ultimately airworthiness. Solid State Power Controller (SSPC) modules already exist for aircraft applications but they were developed for the lower power levels seen in existing aircraft branch circuits. Hybrid-Electric aircraft have electrical power levels that are one or two orders of magnitude higher than existing aircraft and the presently existing SSPCs are simply not appropriate for use in these vehicles. SSPCs at the power levels required for a GA aircraft propulsion motor hardly exist; and SSPCs at the power levels required by small electric UAVs are too heavy and bulky. The LaunchPoint SSPC unit will incorporate all of the capabilities of existing SSPCs but with a few distinctions. LaunchPoint's SSPC will utilize Silicon Carbide and Gallium Nitride semiconductors to create SSPCs that are not only significantly smaller but can operate at much higher power levels. In addition to utilizing a different MOSFET element, the LaunchPoint SSPC would incorporate a microcontroller that would perform high bandwidth monitoring of current and voltage waveforms and derive low bandwidth metrics that can be reported back to the system Hybrid Power Controller. These metrics could include transient peak currents and voltages, RMS currents and voltages, and frequency content. In addition to these metrics, LaunchPoint would like to evaluate the feasibility of using the smart SSPC to detect imminent insulation failures resulting from coronal discharge, a particularly troubling problem associated with high altitude flight. This could be accomplished by real time analysis of partial discharge currents and other characteristic phenomena. These advancements represent a novel contribution to electric aircraft propulsion systems.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Dates

Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_93838
Maintainer
TECHPORT SUPPORT
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 5f6541ca-e874-4880-82c7-075212b6151b
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2017-12-01
Homepage URL https://techport.nasa.gov/view/93838
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 5f38ae6cfac9b5c8a79acf8ea253545d0d1fe329
Source Schema Version 1.1

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