Impact of distributed generation on steady state of electrical networks

Abstract

The main objective of this paper is to study the influence of dispersed generation upon the steady state of distribution networks, especially upon the voltage level, active power losses and branch currents flow. Power flow calculation of electrical distribution networks with and without distributed generation was realized in MATLAB environment, based on backward-forward sweep. The tests were performed on a arborescent network with eleven nodes. The results of the proposed method were verified using NEPLAN software. Another important aspect studied in this paper was the dispersed generators possibility to improve the voltage level in distribution networks.Index Terms-distributed generation, distribution networks, active power losses, backward-forward sweep, branch currents, steady state, voltage level.

STATCOM optimal placement method applied to a Swiss urban distribution network considering future photovoltaic integration scenarios

“…It finally led to forecasts summarized in Table I. As already mentioned, this paper focuses on STATCOM steady state operation, so voltage variation and power losses are the major issues to be solved in MV network [8].…”

Multi-objective Optimization of Distribution Network Based on Model Predictive Control

“…The DGs are widely used due to their advantages of green environmental protection, flexible operation, and diversity of energy utilization. However, with the highpermeability distributed generation access to the distribution network, the safe operation of the system will be challenged [1][2][3][4], such as: voltage fluctuation, power backward. In order to solve these problems, many literatures have been deeply studied.…”