Optimal Allocation of Smart Substations in a Distribution System Considering Interruption Costs of Customers

Lei Sun, Shi You, Junjie Hu, Fushuan Wen

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    Abstract

    One of the major functions of a smart substation (SS) is to restore power supply to interrupted customers as quickly as possible after an outage. The high cost of a smart substation limits its widespread utilization. In this paper, a smart substation allocation model (SSAM) to determine the optimal number and allocation of smart substations in a given distribution system is presented, with the upgrade costs of substations and the interruption costs of customers taken into account. Besides, the reliability criterion is also properly considered in the model. By linearization strategies, the SSAM is simplified into a mixed integer linear programming problem which could be solved efficiently with commercial solvers. Finally, the performance of the proposed methodology is demonstrated by the standard RBTS-BUS 4 test system and a medium voltage power distribution system in Denmark.
    Original languageEnglish
    JournalIEEE Transactions on Smart Grid
    Volume9
    Issue number4
    Pages (from-to)3773-3782
    ISSN1949-3053
    DOIs
    Publication statusPublished - 2018

    Bibliographical note

    (c) 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works

    Keywords

    • Distribution system
    • Smart substation allocation
    • Upgrade cost
    • Interruption cost
    • Reliability Cost
    • Service restoration
    • Outage management

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