Grid-tie inverter cooperating with renewable energy sources used for voltage quality improvement Ph.D. THESIS Łukasz Rosłaniec WARSAW UNIVERSITY OF TECHNOLOGY

Grid-tie inverter cooperating with renewable energy sources used for voltage quality improvement
 Ph.D. THESIS Łukasz Rosłaniec
 WARSAW UNIVERSITY OF TECHNOLOGY - Faculty of Electrical Engineering 
 Abstract 
The dissertation centres on a single-phase voltage-source grid-tie inverter design and construction aimed at interconnecting various small-power renewable energy sources (RES) with an electric power system. It also provides the explanation of application areas for this kind of devices. A great part of the research addresses the problems arising from the influence of small-scale RES on the electric power quality in a low-voltage distribution grid the devices are mostly interconnected with. Therefore, the analysis of standard requirements regarding the interconnection of RES with the grid was included in the study. The thesis also characterizes the range of possibilities which voltage source inverters open up to help maintain power quality around the point of common coupling (PCC) during voltage disturbances caused by the receivers. An overview of a hardware design with an emphasis on output filter and control schemes for currently used single-phase inverters serves as a basis for describing the inventions introduced to the prototype. In the final section the simulation and experimental results of the designed inverter are presented and discussed..
FULL THESIS
https://repo.pw.edu.pl/docstore/download/WUT23082068df74474098925967751c9e84/Ros%C5%82aniec+%C5%81ukasz.pdf