| Issue |
MATEC Web Conf.
Volume 287, 2019
6th International BAPT Conference “Power Transmissions 2019”
|
|
|---|---|---|
| Article Number | 08003 | |
| Number of page(s) | 5 | |
| Section | Other Relevant Subjects | |
| DOI | https://doi.org/10.1051/matecconf/201928708003 | |
| Published online | 14 August 2019 | |
A topology of grid connected photovoltaic inverter with variable power factor
1,2,4
University of Chemical Technology and Metallurgy, Dept. of Electrical Engineering and Electronics, 8 Kliment Ohridski Blvd., 1756 Sofia, Bulgaria
3
University of Chemical Technology and Metallurgy, Dept. of Applied Mechanics, 8 Kliment Ohridski Blvd., 1756 Sofia, Bulgaria
* Corresponding author: yovko_rakanov@abv.bg
By outlying renewable energy sources, the reactive electric power of local consumers at the same area must be carried by the grid. This loads and causes losses in the same grid. This can be avoided if the necessary reactive power is generated on the spot by the inverter. For that purpose is proposed and investigated a new modified topology for operating with variable power factor. Features of this topology are: transformerless connection to single-phase grid, symmetrical operation in both half waves and the presence of flying inductor, which eliminate the necessity from a separate boost converter, if the input voltage is smaller than the grid peak voltage. The simulation analysis is done on the model elaborated on the SIMETRIX software environment. The results show that the suggested topology can operate with variable power factor and has many additional advantages.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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