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    A Fragility-Weighted Topological Network for Resilient Assessment of Overhead Power Distribution System Subjected to Hurricane Winds

    Source: ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering:;2022:;Volume ( 008 ):;issue: 002::page 04022015
    Author:
    Jintao Zhang
    ,
    Wei Zhang
    ,
    Qin Lu
    ,
    Jin Zhu
    ,
    Amvrossios C. Bagtzoglou
    DOI: 10.1061/AJRUA6.0001232
    Publisher: ASCE
    Abstract: Extreme weather events with an increased frequency have caused widespread damages to overhead power distribution systems (OPDS), an essential lifeline infrastructure, resulting in enormous societal and economic losses for communities. Cascading failure is a critical issue within OPDSs and starts with the failure of a system component, such as a pole, leading to large power outages. Therefore, the resilient assessment of OPDSs under extreme weather events could help evaluate system vulnerability and the performance of recovery strategies. Traditionally, the assessment is performed using an unweighted network based on topology, but this lacks the inclusion of OPDS structural properties. Therefore, a resilient assessment framework for OPDS subject to hurricane winds is proposed in this study with the integration of structural properties to consider the impact of system safety. Instead of the traditional unweighted network, a fragility-weighted topological network is formed to evaluate the performance of an OPDS against cascading failure. The system is found to be more vulnerable under an intentional failure scenario based on a comparison of performance under different attack scenarios. In addition, the impact of electricity load redistribution within the system can be obtained by performing dynamic analysis. Finally, different restoration strategies are included in the framework for comparison. Postdisruption restoration plans can be optimized in terms of recovery speed to benefit utility managers and decision makers from the improved resilience.
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      A Fragility-Weighted Topological Network for Resilient Assessment of Overhead Power Distribution System Subjected to Hurricane Winds

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    • ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering

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    contributor authorJintao Zhang
    contributor authorWei Zhang
    contributor authorQin Lu
    contributor authorJin Zhu
    contributor authorAmvrossios C. Bagtzoglou
    date accessioned2022-05-07T20:41:10Z
    date available2022-05-07T20:41:10Z
    date issued2022-03-22
    identifier otherAJRUA6.0001232.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4282752
    description abstractExtreme weather events with an increased frequency have caused widespread damages to overhead power distribution systems (OPDS), an essential lifeline infrastructure, resulting in enormous societal and economic losses for communities. Cascading failure is a critical issue within OPDSs and starts with the failure of a system component, such as a pole, leading to large power outages. Therefore, the resilient assessment of OPDSs under extreme weather events could help evaluate system vulnerability and the performance of recovery strategies. Traditionally, the assessment is performed using an unweighted network based on topology, but this lacks the inclusion of OPDS structural properties. Therefore, a resilient assessment framework for OPDS subject to hurricane winds is proposed in this study with the integration of structural properties to consider the impact of system safety. Instead of the traditional unweighted network, a fragility-weighted topological network is formed to evaluate the performance of an OPDS against cascading failure. The system is found to be more vulnerable under an intentional failure scenario based on a comparison of performance under different attack scenarios. In addition, the impact of electricity load redistribution within the system can be obtained by performing dynamic analysis. Finally, different restoration strategies are included in the framework for comparison. Postdisruption restoration plans can be optimized in terms of recovery speed to benefit utility managers and decision makers from the improved resilience.
    publisherASCE
    titleA Fragility-Weighted Topological Network for Resilient Assessment of Overhead Power Distribution System Subjected to Hurricane Winds
    typeJournal Paper
    journal volume8
    journal issue2
    journal titleASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering
    identifier doi10.1061/AJRUA6.0001232
    journal fristpage04022015
    journal lastpage04022015-11
    page11
    treeASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering:;2022:;Volume ( 008 ):;issue: 002
    contenttypeFulltext
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