Vliv malých zdrojů na kvalitu elektrické energie

Abstract

This diploma thesis focusing on the issue of small energy sources and their impact on power quality. At the beginning of this work are specified power quality parameters, which are based on the EN 50160 standard - voltage characteristics of electricity supplied from the public grid. The following section describes possibilities for power quality measurements. The last chapter is a theoretical analysis of individual small sources of electricity. This chapter mainly focuses on a cogeneration unit, but there are mentioned a renewable resources as well. The practical part presents the results of measurements of voltage levels from different power sources of low and high voltage. The last part consist of the overall comparison of the influence of these small sources to power quality.