Decreasing activity cost of a distribution system company by reconfiguration and power generation control of DGs based on shuffled frog leaping algorithm

Distribution system companies (DISCOs) try to pay less to energy markets by reducing energy loss in their networks. Reconfiguration is one of the most economic ways to reach that goal. The objective of this study is to present a new method for reducing DISCO costs in deregulated environment by loss reduction and power generation control of Distributed Generators (DGs). This problem is solved at different network load levels. Since this problem enjoys a large solution space with several constrains, it is therefore one of the complex optimization problems. A new method based on shuffled frog leaping algorithm (SFLA) is used to solve this problem. The proposed method is first applied to IEEE 33-bus test system to confirm its capability relative to other methods. Then, by applying the proposed method to IEEE 33-bus and 69-bus test systems, the activity cost of DISCO in deregulated environment is decreased. (C) 2014 Elsevier Ltd. All rights reserved.