Estimation of Power Distribution Reliability Indices Based on Limited Maintenance Data

Mostafa Aliyari(1), Mostafa Sharifi(2), Barabadi Abbas(3*)

(1) North Khorasan Electrical Distribution Co., Iran, Islamic Republic of
(2) Departments of Mechanical Engineering, University of Canterbury, New Zealand
(3) Associate Professor Risk, Safety and Environment Department of Engineering and Safety University of Tromsø, Norway
(*) Corresponding author


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Abstract


Reliability is a key issue in the design and operation of power distribution system. Reliability indices such as SAIDI and SAIFI measure the overall reliability of the system which can be used to establish or optimize the maintenance strategies for distribution system. However, calculating these indices are challenging due to the availability of appropriate and sufficient information and data. One of the basic inputs for calculation of reliability indices is the number of the customers which have been affected per each interruption. In some cases the undistributed energy for each interruption and average customer’s consumption can be used to calculate the number of customers per each interruption. In this study such approach is illustrated by a case study
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Keywords


Reliability Indices; Distribution system; Maintenance dataReliability Indices; Distribution System; Maintenance Data

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References


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