1. Control and Modelling Group (GCOM), Department of Electrical Engineering, Federal University of São João del-Rei, São João del-Rei, MG 36307-352, Brazil
2. Department of Electronic Engineering, Federal University of Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
3. Youth Research Institute, Saint Petersburg Electrotechnical University “LETI,” 5, Professora Popova st., 197376 Saint Petersburg, Russia
4. Department of Computer-Aided Design, Saint Petersburg Electrotechnical University “LETI,” 5, Professora Popova st., 197376 Saint Petersburg, Russia