In Power Electronics , we highlight the study and development of new topologies of static converters (rectifiers, inverters and DC-DC converters) for applications ranging from AC power sources to the connection of renewable energy sources (especially hydropower, solar photovoltaic and wind power). In addition, design techniques are also developed to optimize converters with respect to volume, yield and / or cost. Regarding the research in Process Control, GEPOC develops control techniques focused on the application in Power Electronics, especially in plants with parametric variations or partially known models. Among the techniques researched, we highlight robust control, adaptive control, control by reference model, control by sliding modes, among others.