Uticaj solarnih panela i skladišta električne energije na gubitke u niskonaponskoj mreži

Abstract

The largest part of technical losses of electricity in electricity distribution are technical losses in low-voltage lines. Technical losses of electricity are losses that occur in the distribution of electricity from transformers to consumers in electrical distribution equipment. Commercial losses include unauthorized use of electricity and losses due to errors in metering equipment. The main source of technical losses of electricity is caused by the flow of electric current through conductors. Solar panels installed by consumers can affect the reduction of losses by reducing the flow of electric current, i.e. of electricity through low-voltage lines. The introduction of electricity storage (batteries) can have an additional impact on the reduction of electricity losses by using the stored electricity in batteries at times of peak loads. The paper presents the assumed daily diagram of the symmetrical load of the low-voltage line with the calculation of hourly losses without the influence of solar panels and with the influence of solar panels without electricity storage and with electricity storage. The impacts of solar panels without and with electricity storage are also shown in a daily diagram, as well as the voltage values at the end of the low-voltage line. In the calculation, an equivalent line with half the length and full hourly load is used for the low-voltage line.