Maryam Shokouhi - Islamic Azad university, Khomeinisahr Branch,
Shahrokh Shojaeian - Islamic Azad university, Khomeinisahr Branch,

Distribution networks are widest part of electrical grids. Due to low voltage and large expansion, the most of electric energy losses is related to these networks. Reconfiguration and capacitor placement are used in distribution networks, mainly to reduce power loss and improve voltage profile. In this paper, the optimal size and location of capacitors along with reconfiguration is investigated in IEEE 33-bus and 69-bus standard distribution systems. The purpose of optimization is power loss reduction and voltage profile improvement while satisfying radial network and power quality and practical constraints. Ant Lion optimizer (ALO) algorithm is used for this purpose. The obtained results show impact of these two methods and ALO algorithm in improving the system performance.

Ant Lion optimizer (ALO), voltage profile improvement, distribution system reconfiguration, power loss reduction,optimal capacitor placement