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The increase in the number of photovoltaic (PV) systems integrated with low voltage (LV) grids has led to a great need to analyse the impact of these systems on the quality of electricity and the reliability of its supply. This paper presents and compares the energy quality requirements imposed by various countries on photovoltaic plants. Then, based on real object tests and simulation in DIgSILENT...
According to the Energy Efficiency Act, the burden of searching for solutions to limit losses incurred during the transformation and transmission of electricity also rests with distribution system operators (DSOs). One of the intermediary facilities in the electric power supply chain to consumers is an HV/MV substation, which is characterized by relatively high energy losses. The paper analyses the...
The need to develop the theory of electric arc modelling with dynamically variable parameters is demonstrated. The Mayr-Pentegov model modification allowed mapping the effect of changes in static and dynamic parameters of the plasma column on the voltage-current characteristics of the arc. As examples, two variants of static voltage-current characteristics with an unspecified and determined ignition...