University of Craiova
The definition and classification of concepts related to power electronic equipment have been made by the IEC (International Electrotechnical Commission). The nomenclature for such equipment is "Power electronic converters" or shortly, "Static converters". Static converters are made up of semiconductor devices (static switches) and ancillary components (coils, transformers, capacitors, etc..), used to modify one or more characteristics of the electric power supply system. Over 70% of world electricity is transmitted through the static power converters. Consequently, the energy optimization of existing structures and the development of others, are issues of current and future electrical and electronic engineering domains.