公开(公告)号：US20170085090A1

公开(公告)日：2017-03-23

申请号：US15311672

申请日：2015-05-19

Applicant: Solar Ship Inc.

Inventor： Ahmad Diab Marzouk ,  Olivier Trescases

IPC: H02J3/38 ,  H02M3/335

CPC classification number: H02J3/383 ,  H02J7/35 ,  H02M3/33507 ,  H02M3/33584 ,  H02M2001/0093 ,  Y02B70/1483 ,  Y02E10/566

Abstract: Habitations in remote areas around the world lack basic infrastructure to achieve an efficient supply chain. Over 90% of roads are unpaved and fuel infrastructure is scarce. A solar-powered hybrid airship was conceived to address this problem. It is a buoyant low-altitude aircraft with an electric power train and wing-mounted photovoltaic array. Fully electric operation requires efficient lightweight power electronics to maximize range and payload. A Partial Power Processing (PPP) converter based on the bidirectional Cuk topology is demonstrated for this application. Due to the PPP concept, the converter is rated for only about a quarter of the generated PV power. The rating is optimized based on the battery and photovoltaic array voltage ranges. The experimental prototype uses Silicon Carbide MOSFETS and achieves a system efficiency of up to 99.3%.