Development of a Dynamic End-to-End Free Piston Stirling Converter Model

摘要

A dynamic model for a free-piston Stirling converter is being developed at the NASA Glenn ResearchrnCenter. The model is an end-to-end system model that includes the cycle thermodynamics, the dynamics, and electricalrnaspects of the system. The subsystems of interest are the heat source, the springs, the moving masses, the linearrnalternator, the controller and the end-user load. The envisioned use of the model will be in evaluating how changes in arnsubsystem could affect the operation of the converter. The model under development will speed the evaluation ofrnimprovements to a subsystem and aid in determining areas in which most significant improvements may be found. Onernof the first uses of the end-to-end model will be in the development of controller architectures. Another related area isrnin evaluating changes to details in the linear alternator.