DefinePK

Abstract

Distribution network consists of several feeders with many switches. The feeder lines are often cut accidentally by heavy equipment, natural disaster or intentional attacks, which causes blackouts along affected feeders. Therefore, by applying service restoration via network reconfiguration, it will able to revive as many loads as possible by transferring loads in inoperative areas to another distribution feeder via changing the switches status and will help to protect the load and overcome blackout to the consumers. Hence, distribution system must be properly equipped and planned so that consumers will get an uninterrupted supply of power without interruption due to out of service area. The main idea of this technique is to alter the network topology by changing the switches state on the feeders. Therefore, an optimization method which is known from the foraging behavior of honey bee swarm called as Improve Artificial Bee Colony (IABC) has been introduced. The main objectives of this study are to restore blackout area distribution network by changing the appropriate switches state on the distribution feeders with the proper size of DG while reducing power losses by employing improved ABC algorithm in distribution network reconfiguration. The study has been tested with IEEE-33 bus system by using the simulation in MATLAB environment. Based on the results achieved, can be concluded that network configuration without service restoration produce more power losses and out of service area. However, when service restoration is applied, it shows a reduction of power losses compared to the other cases and it able to restore as many loads as possible by the changes of the switching. Furthermore, by considering DG with DNR simultaneously has surely contributed to the tremendous power loss reduction in the network distribution system.