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Design of 1 kW Simplified Stirling Controller Using Capacitor-Based Power Factor CorrectionFree-piston Stirling convertors hold potential for efficient, reliable thermal to electric power conversion, provided they are paired with a robust controller. This paper outlines work underway on a system-level optimization of a kW controller. Using simplified control and passive power factor correction (PFC) this design explores the possibility of reducing programmatic risk through system simplification. Efficiency is improved through incorporating wide-bandgap gallium nitride (GaN) switches, and PFC volume is minimized through the use of polymer multi-layer capacitors. This work is aimed at exploring new approaches for future Stirling space power concepts.
Document ID
20210010322
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Christopher B Barth (Glenn Research Center Cleveland, Ohio, United States)
Donguk Max Yang (Glenn Research Center Cleveland, Ohio, United States)
Max F Chaiken (Glenn Research Center Cleveland, Ohio, United States)
Date Acquired
February 18, 2021
Subject Category
Energy Production And Conversion
Meeting Information
Meeting: Nuclear and Emerging Technologies for Space
Location: Virtual
Country: US
Start Date: April 26, 2021
End Date: April 30, 2021
Sponsors: Oak Ridge National Laboratory
Funding Number(s)
WBS: 295670.01.21.22.09
WBS: 658133.11.22
Distribution Limits
Public
Copyright
Portions of document may include copyright protected material.
Patent
LEW-20262-1
Patent Application
Technical Review
Single Expert
Keywords
Stirling
controller

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