Design středofrekvenčního SiC polovodičového měniče pro využití ve fotovoltaice

Abstract

The diploma thesis focuses on a design and realization of performance-enhancing DC/DC converter for use in photovoltaics while using the modern Sic semiconductor elements. The introduction of the thesis attempts to provide a detailed description of the existing photovoltaic system at the Technology Centre of Ostrava Vítkovice including a description of the DC/DC converters. Subsequently, a model is created and a simulation of increasing DC/DC converter in the LTspice program focused on a comparison of the effects of Si and SiC switching elements is carried out. A structural solution of converter based on the results of simulation is designed there and it is subsequently physically realized and tested by an experimantal meassuring. The conclusion provides a structural design of the converter in 3D CAD Autodesk Inventor system and a drawing documentation is created for a future small series production.