NaS technology allocation for improving reliability of DG-enhanced distribution networks

Reliability calculation is the most important concern in designing and planning of distribution systems, which is considered, in terms of the economical concerns, with minimal interruption of customers. Storage devices are usually used for storing the electric energy while the electric price is low, and deliver their reserved energy when it has financial profit. Also, it could be effective for decreasing the average duration and frequency of outages in load points. In this paper, a method for evaluation of average annual energy not supplied (ENS) for a radial distribution system with DG units and storage devices is presented. Besides, the genetic algorithm (GA) is used to find the optimal capacity and the best location for storage device in order to minimize ENS and installation cost simultaneously. The effectiveness of this method is examined on a real distribution network.

[1]  Graham Kendall,et al.  Search Methodologies: Introductory Tutorials in Optimization and Decision Support Techniques , 2013 .

[2]  T. Hiyama,et al.  Reconfiguration of power distribution system using multi agent and hierarchical based load following operation with energy capacitor system , 2007, 2007 International Power Engineering Conference (IPEC 2007).

[3]  S. Iwamoto,et al.  A voltage control strategy with NAS battery systems considering interconnection of distributed generations , 2004, 2004 International Conference on Power System Technology, 2004. PowerCon 2004..

[4]  S. Sirisumrannukul,et al.  Network reconfiguration for reliability worth enhancement in distribution systems by simulated annealing , 2008, 2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology.

[5]  Alberto Bareggi,et al.  Self-repairing secondary underground residential distribution cable. I. Design and testing , 2001, 2001 IEEE/PES Transmission and Distribution Conference and Exposition. Developing New Perspectives (Cat. No.01CH37294).

[6]  M. P. Moghaddam,et al.  Economic viability of NaS battery plant in a competitive electricity market , 2009, 2009 International Conference on Clean Electrical Power.

[7]  Richard Brown,et al.  Electric Power Distribution Reliability, Second Edition , 2008 .

[8]  J.D. Boyes,et al.  The United States of storage [electric energy storage] , 2005, IEEE Power and Energy Magazine.

[9]  K. Bhattacharya,et al.  Disco Operation Considering DG Units and Their Goodness Factors , 2009, IEEE Transactions on Power Systems.

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

[11]  E.F. El-Saadany,et al.  Reliability Based Analysis for Optimum Allocation of DG , 2007, 2007 IEEE Canada Electrical Power Conference.