Influence of generator on short-circuit conditions in the distribution network

V magistrskem delu je prikazan vpliv generatorja na kratkostične razmere v distribucijskem omrežju. Namen je ugotoviti vpliv sinhronskega generatorja na kratkostične toke, ki so na mestu priključitve izhodiščni podatek za projektiranje in dimenzioniranje posameznih elementov omrežja. Kratkostični tokovi so v točki kratkega stika določeni s pomočjo programskega orodja DMS, ki je razvito za analizo realnih razmer v omrežju in med drugim omogoča tudi izračune parametrov vseh vrst kratkih stikov. Potrditev modela in točnosti izračunanih parametrov kratkega stika s programskim orodjem DMS je izvedena s primerjavo rezultatov programskega orodja z rezultati dejanskih meritev in z rezultati simulacije v programskem paketu Matlab. Analiza vpliva generatorja na kratkostične toke v distribucijskem omrežju je izvedena v točki blizu generatorja in v točki daleč od generatorja. Ugotovljeno povečanje kratkostičnih tokov zaradi vgradnje generatorjev v distribucijsko omrežje je potrebno upoštevati pri projektiranju in dimenzioniranju distribucijskega omrežja.In the master\u27s degree thesis the influence of the generator at short-circuit current within the distribution network is shown. The aim is to determine the impact of synchronous generator on short-circuit currents that are, at the connection point, the starting points for planning and dimensioning of individual elements of the network. Short-circuit currents are determined by a particular software tool DMS at the point of short circuit. It is developed for analysis of the real situations in the network and it also provides the calculations of parameters of all types of short circuits. The confirmation of the model and the accuracy of the calculated parameters of short-circuit with DMS tools is carried out by comparing the results of the DMS software tool with the results of actual measurements and the results of the simulations in Matlab. The analysis of the influence of the generator on short-circuit currents within distribution network is carried out at a point close to the generator and at a point far from the generator. The findings show that the increase in short-circuit currents due to the installation of generators to the distribution network must be taken into account while planning and dimensioning the distribution network