E3S Web Conf.
Volume 295, 2021International Scientific Forum on Sustainable Development and Innovation (WFSDI 2021)
|Number of page(s)||10|
|Section||Sustainable Energy Development|
|Published online||26 July 2021|
Analysis of unbalanced load low-voltage electrical networks operating modes
Irkutsk National Research Technical University, 664074 Irkutsk, Russian Federation
2 Irkutsk State Agrarian University Named After A.A. Ezhevsky, 664038 Irkutsk, Russian Federation
3 Krasnoyarsk State Agrarian University, 660049 Krasnoyarsk, Russian Federation
* Corresponding author: firstname.lastname@example.org
The article discusses distribution electrical networks 0.38 kV operating modes, feeding individual residential buildings. The electrical energy parameters measurement were certified RESURS-UF2M device carried out. The currents and voltages time diagrams based on the measurements made and using Matlab technologies were constructed. It is established that the level of phase currents unbalance is quite high and causes significant three-phase power supply system unbalance voltage accordingly. The power of quality indicators - calculations, characterizing voltage unbalance were made, which were based on the measurements and the computer program “Asymmetry” was used. As well as the additional power losses coefficient determining by the phase currents unbalance, were calculations. Time diagrams these indicators are constructed and their analysis were made. As a result, the power of quality is significantly reduced by unbalance power consumption in the studied electrical network were founded. At the same time, the additional power losses are significant increases. Specific recommendations for the normalization electrical network-operating mode are given.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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