Rafael Cardoso received a B.S. in electrical engineering from the Federal University of Santa Maria (UFSM), Santa Maria—RS, Brazil, in 2001; an M.Sc. in electronic and computer science from the Technological Institute of Aeronautics, São José dos Campos—SP, Brazil, in 2003; and a Ph.D. in electrical engineering from the UFSM, in 2008. Since 2006, he has been with the Federal University of Technology—Paraná, Pato Branco—PR, Brazil, where he is currently a full professor. He is a member of the Brazilian Society of Power Electronics (SOBRAEP). His research interests include control systems applications, signal processing, active power filtering, control of static converters for smart grids, power quality and battery energy storage systems.