Influence of the relative location of distributed energy sources on the current protection of the electric network

Abstract

This article focuses on studying the influence of additional sources of electricity generation on the traditional distribution grid, which leads to a change in the direction of the power flow in the grid. Consequently, the sensitivity and speed of current protection are not provided due to the dynamic operation of distributed generation sources. This paper considers the effect of distributed generation on the protection of the power grid. A special emphasis is on problems which may occur in the power grid in the presence of distributed generation. The theoretical background of blinding and calculation of the effect is also presented. The studies presented are made by computer modelling in Matlab/Simulink.