Green technologies in rural electric powerindustry

Abstract

The article examines the indicators of the quality of electric energy and additional power losses due to the asymmetry of the three-phase voltage system in rural distribution electric networks 0.38 kV. Violation the symmetrical mode operation of the electrical network causes a deterioration the power quality and can lead to fire-hazardous situations. The proposed method of using the means of balancing the modes of operation electric networks is considered as a scenario for the introduction of “green” technologies to improve the efficiency of electricity supply in rural areas. The connection of balancing devices (BD) and various types of three-phase symmetric and unbalanced loads, as well as their combinations are considered on the model of the electric network at various points of power consumption. The parameters of the electrical network and BD are modeled and calculated by the computer complex “Asymmetry-2”. The programs for the Matlab graphic editor are compiled and diagrams of changes the indicators characterizing the quality and additional losses of electricity from the changing unbalanced load are constructed. A numerical analysis is carried out on the basis of the performed calculation and recommendations are given for determining the most appropriate place for connecting the BD in the electrical network.

The Application of Photovoltaic-Electric Spring Technology to Rural Power Grids

“…Grid construction in rural power supply systems has not kept pace with the increasing demand for electricity consumption. Over the past decade, the number of electric power receivers impacting household power loads has far exceeded the "safety margin" of existing electric network components [18]. Expanding the grid in remote areas involves high costs, and significant power losses occur during the transmission of electric power from central grids to small towns.…”