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Life cycle resilience quantification and enhancement of power distribution systems: A risk-based approach

Mohammadi Darestani, Yousef, Sanny, Keoni, Shafieezadeh, Abdollah, Fereshtehnejad, Ehsan·2021·Structural Safety
DOI 10.1016/j.strusafe.2021.102075
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Abstract

Abstract Distribution systems in the US are commonly supported by wood utility poles. Since wood poles may experience substantial decay rates, current standards specify a strength-based maintenance program for pole replacement regardless of the poles’ vulnerability and importance in the system. While state-of-the-art methods have developed risk-based metrics to guide system hardening decisions, such metrics are analyzed for the current conditions of the system. In this context, the potential of a stochastic series of hazards over extended horizons and the subsequent effects on the resilience of systems have been largely neglected. To address these limitations, a risk-based methodology is proposed for quantifying the life cycle resilience of power distribution systems. To project pole vulnerability, a recursive approach is developed that captures the stochasticity of precedent failures and subsequent corrective actions over extended horizons. Furthermore, a risk-based replacement index called Expected Outage Reduction (EOR) is introduced that estimates the expected power outage reduction if an existing pole is replaced by a new pole. The application of the proposed method for life cycle resilience analysis and management of a realistic distribution system subjected to stochastic hurricanes indicates that EOR can improve the cumulative life cycle resilience by up to 22.3% over 70 years.

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Cited by 19

Research works printed but not linked: 31

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Metadata

Authors
Mohammadi Darestani, Y., Sanny, K., Shafieezadeh, A., & Fereshtehnejad, E.
Venue
Structural Safety
Publisher
Elsevier BV
Published
2021-05
Volume
90
Pages
102075
ISSN
0167-4730
DOI
10.1016/j.strusafe.2021.102075
Cited by
19
Language
en
Licence
Funders
Division of Civil, Mechanical and Manufacturing Innovation

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CoChat. (2026). Citation check: Life cycle resilience quantification and enhancement of power distribution systems: A risk-based approach. https://app.cochat.ai/papers/10.1016/j.strusafe.2021.102075
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Mohammadi Darestani, Y., Sanny, K., Shafieezadeh, A., & Fereshtehnejad, E. (2021). Life cycle resilience quantification and enhancement of power distribution systems: A risk-based approach. Structural Safety. https://doi.org/10.1016/j.strusafe.2021.102075

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