Optimal Reconfiguration of 8A & B 11kV C-2 Maitama Feeder for Power Loss Reduction and Improved Reliability.

Abstract

Technical losses have been the major problem in radial distribution system. As such, a distribution network reconfiguration based on Bat Algorithm for real power loss reduction and improved reliability is proposed in this paper. A reconfiguration model based on Bat Algorithm is used to determine the optimal position of the sectionalized and tie switches that will reduce the active power loss and improve reliability. The proposed method is implemented on standard IEEE 33 Bus distribution test system and applied on 11kV 8A & B C-22 Maitama Injection Substation feeder in Federal Capital Territory (FCT), Abuja Nigeria. In IEEE 33 bus distribution test system, the optimal location of the tie switches was found to be (5), (11), (22), (31), and (35), a power loss of 74.82kW was obtained which gives about 63.93% power loss reduction. 1.1408, 0.3145 and 0.3772 was obtained for SAIDI, SAIFI and ENS respectively. In 11kV 8A & B C-2 Maitama Injection Substation feeder, a power loss of 0.4465kW was obtained which gives about 75.58% power loss reduction while 0.9328, 0.00007924 and 0.4043 was recorded for SAIDI, SAIFI and ENS respectively which is about 42.79% for reliability improvement with respect to SAIFI. The optimal locations of tie switches were found to be positions (8-9) and (16-24).