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To Investigate Sensitivity Behavior of Reliability Indices Simultaneously for Development Planning

Majid Ghani Varzaneh, Reza Dashti, Vahid Amir.

In this paper, a new index is defined as a product of multiplying some reliability indices and then concurrent behavior of these indices regarding the load growth is investigated. A distribution system from reliability viewpoint is developed to improve one or more reliability indices. In this paper, in order to widen the study scope, an index is defined which may be affected by any kind of development in the system. Multiple Index (MI) which indicates three different index reliability categories simultaneously is a proper suggestion. From reliability viewpoint, since the amounts of reliability indices depend on the number of customers, consumption energy, failure rate, and outage time of load points; development in today and the load growth phenomena in the future will change the amounts of reliability indices and divert distribution system from optimal status. In this paper Multiple Index sensitivity regarding load growth is applied to investigate load growth effects on the development. At the end, the status of all load points from sensitivity viewpoint is recognized after applying development process and load growth, and it is proved that the load point which Multiple Index has the most amount in it, is the optimum location for investment from sensitivity viewpoint regarding the load growth.