Transient of short circuit analysis in distribution systems by presence of distributed generation

The main purpose of this paper is to assess the protection system of distribution network with distributed generations and also their performance by regarding their technologies. Protection problems, voltage and current quality in the presence of distributed generation and the effect of them on protection system are considered too. In order to determine the protecting’s problems of distributed generations, the effect of distributed generations on short circuit event and change the short circuit level in 13-bus test system, IEEE, by PSCAD/EMTP software was investigated. At this survey fault currents in different points and with different distributed generations are considered by respect that network is in connected mode and island mode condition. Present survey concludes all 3-phase and single phase to ground’s faults in various time steps. Furthermore during this survey, through comparisons between faults currents in various condition was done and also the effect of synchronized and inductive generators is studied.

کلیدواژه ها:

Transient analysis ، harmonic ، distribution network ، distributed generation