3Rippl M D. Sizing analysis for aircraft utilizing hy- brid-electric propulsion systems[ R]. Air force inst of tech wright-patters on AFB OH engineering and man- agement, 2011.
4Hung J Y, Gonzalez L F. On parallel hybrid-electric propulsion system for unmanned aerial vehicles [ J ]. Progress in Aerospace Sciences,2012 (51 ) : 1 - 17.
5Romeo G, Borello F, Correa G. ENT/CA-FC: Design, realization and flight test of all electric 2-seat aircraft powered by fuel cells [ C ]. International Congress of the Aeronautical Sciences(ICAS2010) ,2010 :1 - 3.
6Batill S M, Stelmack M A, Qing Y X. Multidisciplinary design optimization of an electric-powered unmanned air vehicle [ J ]. Aircraft Design, 1999 ( 8 ) : 1 - 18.
7Berton J J, Joshua F E, Timpthy W J. An analytical performance assessment of a fuel cell-powered, small electric airplane[ J ]. NASA, 2003 : 6 (2) : 210 - 215.
8Xiao Li. Stability analysis and control design for hy- brid AC-DC more electric aircraft power systems [ M]. University of Pittsburgh,2013:41 -42.
9Rosero J A, Ortega J A, Aldabas E, et al. Moving to- wards a more electric aircraft [ M ]. IEEE A&E Sys- tems Magzine ,2007 :133 - 142.
