دانلود Probabilistic Short Circuit Analysis in Electric Power Distribution Systems including Distributed Generation

Abstract

The paper presents a probabilistic approach based  on  a  Monte  Carlo  technique  for  the  evaluation  of  the  probability density function of three phase short-circuit currents in a distribution network with distributed generations. The proposed approach takes  into  account all the major uncertainties affecting the magnitude of the fault currents:  power  load  demands,  network  configurations,  fault location,  fault  impedance,  fault  type  and  power  productions from  distributed  generators.  In  particular,  in  this  paper  is analyzed the contribution of the distributed generation both in  pre-fault  operating  conditions and  during the fault. Numerical applications are also presented and discussed with reference to  a three-phase balanced distribution system including wind farms and a small hydroelectric power plant.