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Due to the growth of Distributed Generation, also in Low Voltage Distribution Networks, in which single-phase generators may be connected to the grid, the voltage calculation it is necessary for each phase of the system. This is an important issue because an non-uniform connection of the single-phase generations on the three phases causes voltage imbalances along the feeders. Moreover, harmonic current...
This paper addresses the issue of the evaluation of how modern and restructured Transmission and Distribution (T&D) infrastructures help accomplish the so-called EU 2020 targets, in terms of efficiency increase, CO2 reduction and a wider employ of renewable energy resources. A methodology is proposed in order to quantify the possible environmental benefits as well as the power quality improvement...
This paper makes a study of method of reactive power compensation to improve the efficiency of transmission and distribution grid. A simulation model based on instantaneous reactive power is proposed as an example for three-phase unbalanced power grid to show that unbalanced current could be compensated completely. By means of reactive power compensation to unbalanced electric power grid, line loss...
A small single-phase fuel cell based energy generation and compensation system is proposed in this paper. The power conditioning unit of the system comprises a grid-interfacing inverter and a three-port bidirectional converter which connects a fuel cell and supercapacitor to the inverter. The system can operate in both island and grid-connected modes. By taking advantage of the transient storage capability...
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