[1] Virginia Polytech Inst & State Univ Virginia Tech, Ctr Power Elect Syst, Dept Elect & Comp Engn, Blacksburg, VA 24060 USA
[2] GE Aviat Syst, Elect Power Syst, Vandalia, OH 45377 USA
[3] Univ Tennessee, Knoxville, TN 37916 USA
[4] Safran Power, Safran Grp, F-77551 Hispano Suiza, Moissy Cramayel, France
[5] Huazhong Univ Sci & Technol, Dept Elect & Elect Engn, Wuhan 430074, Peoples R China
[6] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA