1. Centro de TecnologiaUniversidade Positivo, CTCuritibaPRBrazil
2. Power Electronics and Control Research Group ‐ GEPOCFederal University of Santa MariaGEPOCSanta MariaRSBrazil
3. School of Electrical and Computer EngineeringUniversity of Campinas – UNICAMPCampinasSPBrazil