Control Electronics for Palm Power 35W Free-Piston Stirling Engine

Ezekiel Holliday, Douglas Keiter
2005 3rd International Energy Conversion Engineering Conference   unpublished
A 35W e , JP8-fueled, soldier-wearable power system for the DARPA Palm Power program is being developed by Sunpower. A 42W e Sunpower Free-Piston Stirling Engine (FPSE) with integral linear alternator, which was originally developed under a Phase II SBIR from NASA GRC, is the prime mover for this system. Due to the complexities associated with controlling a FPSE and the requirements of the Palm Power program for modulation, high efficiency, and low mass, a non-dissipative, efficient electronic
more » ... ficient electronic control system is also being developed by Sunpower to convert the AC output voltage of the FPSE into 28Vdc for the Palm Power end user. Nomenclature P = average power p mean = mean gas pressure X p = piston amplitude τ = acceptor to rejector temperature ratio
doi:10.2514/6.2005-5750 fatcat:bz6qb5gorbd7bo2bmtiqnj5524