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As a result of the changes that occur in the electrical distribution networks, there is guidance tendency toward users, not only to power systems. This is a feature of the smart grid that will ensure safety operational and power quality, and also facilitates network connection of renewable source. Smart grid can intelligently integrate the behavior of all users connected to this network — electricity...
As the power quality problem getting prominent in distribution networks with small hydropower injected, which existing reactive power compensation capacitors are difficult to solve, DSTATCOM is adopted to suppress the over voltage and the fluctuation caused by hydropower in this paper. Based on MATLAB/Simulink, a model of distribution networks with small hydropower injected and a control model of...
The expansion of the electricity grid connected photovoltaic sources requires the development of solutions for solving problems caused by disturbances in the electrical network due to their strong variable character of energy sources. The power generation of grid-connected photovoltaic plants is increasing all over the world and these plants a crucial part of the future electric energy system. To...
This paper presents implementation of instantaneous voltage-current trajectory (I, U) and its linearization. The aim of the work is to investigate possibility of using the slope of the linearized trajectories obtained synchronously in few measurement points. Field measurement results are presented using wide-area power quality monitoring system installed in distribution network with small hydro power...
Penetration of Distributed Generation (DG) increases continually in electric networks. Adding new DG units in a grid connected microgrid may result in exceeding fault current level above the rating of existing network's equipment and upset coordination of Overcurrent Relays (OCRs). Utilizing Fault Current Limiters (FCLs) between the microgrid (downstream) and main grid (upstream) is a well known approach...
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