raising power quality and improving reliability by distribution network reconfiguration in the presence of renewable energy sources

in this paper, reconfiguration problem of distribution network has been investigated toimprove reliability and reduce power loss by placement of renewable energy sources; i.e. solarcell and wind turbine. for this, four reliability indices are considered in objective function;which are as follows: system average interruption frequency index (saifi), system averageinterruption duration index (saidi), cost of energy not supplied (cens), and momentaryaverage interruption frequency index (maifi). by using a novel technique, the target functionwas normalized. simulation has been performed on ieee 69-bus test system. a genetic algorithmcould solve this nonlinear problem.