Fabiano Fragoso Costa (M’07) received the B.S. degree in electrical engineering from the University of Sao Paulo, Sao Paulo, Brazil, in 1997; the M.S. degree in electrical engineering from the Federal University of Paraiba (UFPB), Campina Grande, Brazil, in 2001; and the Ph.D. degree in electrical engineering from the Federal University of Campina Grande (UFCG), Campina Grande, in 2005. He is currently an Associate Professor with the Department of Electrical Engineering, Federal University of Bahia, Salvador, Brazil. His current research interests include the application of impedance methods for stabiliy assessment of grid-connected inverters, impedance measurement techniques, PLL algorithms, and control of power converters applied for renewable energy sources.