A new combinational objective function for locating switches in distribution network

Distribution networks are often very wide and are comprised of vast number of feeders. Always feeders are considerably broadened, and for them lots of maneuver points placements are predicted for load relocation and reducing the power outage period of customers. In this paper, locating the switching equipment in a radial distribution feeder is investigated. Given to budget restrictions and looking for technical and economic considerations and importance of load points, a combinatorial objective function is defined that pursues three main goals. First goal is minimizing installation and maintenance costs and power outages by optimal switches placement so that maximum budget is considered. For the second goal, consuming available and financial resources in distribution network is investigated in order to optimizing reliability. As the third goal, reaching a particular reliability level with the lowest price is considered. For optimization problem single objective and double objective genetic algorithm are employed. Experiments on a paradigm network and on a real Iranian power distribution network has validate the efficiency of the proposed method.

[1]  Sakti Prasad Ghoshal,et al.  Optimal sizing and placement of distributed generation in a network system , 2010 .

[2]  D.M. Falcao Genetic algorithms applications in electrical distribution systems , 2002, Proceedings of the 2002 Congress on Evolutionary Computation. CEC'02 (Cat. No.02TH8600).

[3]  Fabrizio Giulio Luca Pilo,et al.  Optimal sectionalizing switches allocation in distribution networks , 1999 .

[4]  P.M.S. Carvalho,et al.  A decomposition approach to optimal remote controlled switch allocation in distribution systems , 2005, IEEE Transactions on Power Delivery.

[5]  J. J. Burke,et al.  A systematic and cost effective method to improve distribution system reliability , 1999, 1999 IEEE Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.99CH36364).

[6]  Goran Andersson,et al.  Determining optimum location and number of automatic switching devices in distribution systems , 1999, PowerTech Budapest 99. Abstract Records. (Cat. No.99EX376).

[7]  Karen Miu,et al.  Switch placement to improve system reliability for radial distribution systems with distributed generation , 2003 .

[8]  Ajeet Rohatgi,et al.  Recloser allocation for improved reliability of DG-enhanced distribution networks , 2006 .

[9]  Nadarajah Mithulananthan,et al.  AN ANALYTICAL APPROACH FOR DG ALLOCATION IN PRIMARY DISTRIBUTION NETWORK , 2006 .

[10]  Jarmo Partanen,et al.  A practical approach for estimating future outage costs in power distribution networks , 1990 .

[11]  Roy Billinton,et al.  Reliability evaluation of power systems , 1984 .

[12]  A. R. Wallace,et al.  Optimal power flow evaluation of distribution network capacity for the connection of distributed generation , 2005 .

[13]  Nadarajah Mithulananthan,et al.  Optimal DG placement in deregulated electricity market , 2007 .

[14]  A. Pregelj,et al.  Recloser allocation for improved reliability of DG-enhanced distribution networks , 2006, IEEE Transactions on Power Systems.

[15]  Tuba Gozel,et al.  An analytical method for the sizing and siting of distributed generators in radial systems , 2009 .

[16]  C. N. Lu,et al.  Feeder Switch Relocation for Customer Interruption Costs Minimization , 2001, IEEE Power Engineering Review.

[17]  Richard E. Brown,et al.  Electric Power Distribution Reliability , 2002 .