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http://dx.doi.org/10.5370/KIEE.2011.60.9.1646

A Study on the Reliability Index and Customer Density of Distribution System  

Bae, In-Su (강원대학교 전기공학과)
Kim, Jin-O (한양대학교 전기생체공학부)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.60, no.9, 2011 , pp. 1646-1650 More about this Journal
Abstract
SAIDI(System Average Interruption Duration Index) is the index that signifies the power quality of customers. SAIDI is also used to know how well utilities operate their systems. The annual interruption time in the areas that consists of widely distributed customers, is generally longer than that in the areas that consists of heavily concentrated customers. The Reliability index of huge system is not necessarily better or worse than that of small system, because SAIDI is irrelevant to the total amount of power sold or the total number of customers. This paper proposes a customer density very relevant to SAIDI. The proposed customer density is used to modify the existing SAIDI to more clearly express the service level of power supply. A modified WSAIDI(weighted SAIDI) can be a useful indicator helping utilities improve the reliability of their systems and customers evaluate the service level of receiving power.
Keywords
SAIDI(System Average Interruption Duration Index); Reliability index; Distribution system; Customer density; RBTS(Roy Billinton Test System);
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  • Reference
1 R. Billinton, etc, Reliability Evaluation of Power Systems, Plenum Press, 1996.
2 I. S. Bae and J. O Kim, "Reliability Evaluation of Distributed Generation Based on Operation Mode", IEEE Transactions on Power Systems, vol. 22, pp. 785-790, 2007.   DOI   ScienceOn
3 I. S. Bae and J. O Kim, "Reliability Evaluation of Custsomers in a Microgrid", IEEE Transactions on Power Systems, vol. 23, no. 3, pp. 1416-1422, 2008.
4 R. N. Allan, etc, "A Reliability Test System for Educational Purposes - Basic Distribution system Data and Results", IEEE Transactions on Power Systems, vol. 6, no. 2, pp. 813-820, 1991.   DOI   ScienceOn
5 D. J. Pearson, etc, "Risk Assessment Model for Distribution System Reliability", CIRED 97, no. 438, pp. 6.38.1-6.38.4, 1997.
6 V. Ajodhia, etc, "Experience with Regulation of Network Quality in Italy, the UK and the Netherlands", Electrical Power Quality and Utilisation, vol. 2, no. 1, pp. 3-9, 2006.