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Evaluating system reliability and targeted hardening strategies of power distribution systems subjected to hurricanes

机译：评估遭受飓风袭击的配电系统的系统可靠性和有针对性的硬化策略

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摘要

Over the years, power distribution systems have been vulnerable to extensive damage from hurricanes which can cause power outage resulting in millions of dollars of economic losses and restoration costs. Most of the outage is as a result of failure of distribution support structures. Over the years, various methods of strengthening distribution systems have been proposed and studied. Some of these methods, such as undergrounding of the system, have been shown to be unjustified from an economic point of view. A potential cost-effective strategy is targeted hardening of the system. This, however, requires a method of determining critical parts of a system that when strengthened, will have greater impact on reliability. This paper presents a framework for studying the effectiveness of targeted hardening strategies on power distribution systems subjected to hurricanes. The framework includes a methodology for evaluating system reliability that relates failure of poles and power delivery, determination of critical parts of a system, hurricane hazard analysis, and consideration of decay of distribution poles. The framework also incorporates cost analysis that considers economic losses due to power outage. A notional power distribution system is used to demonstrate the framework by evaluating and comparing the effectiveness of three hardening measures. (C) 2015 Elsevier Ltd. All rights reserved.
机译：多年来，配电系统很容易遭受飓风的广泛破坏，而飓风可能导致停电，从而导致数百万美元的经济损失和恢复成本。大部分停机是由于配电支撑结构故障而导致的。多年来，已经提出并研究了各种加强配电系统的方法。从经济的角度来看，其中某些方法（例如系统的地下化）已被证明是不合理的。潜在的具有成本效益的策略是针对系统进行强化。但是，这需要一种确定系统关键部分的方法，该方法在增强后将对可靠性产生更大的影响。本文提出了一个框架，用于研究遭受飓风袭击的配电系统的目标强化策略的有效性。该框架包括一种评估系统可靠性的方法，该方法与极故障和电力输送，系统关键部分的确定，飓风危害分析以及配电杆衰减的考虑有关。该框架还包含成本分析，该成本分析考虑了因停电而造成的经济损失。通过评估和比较三种强化措施的有效性，使用名义上的配电系统来演示该框架。 （C）2015 Elsevier Ltd.保留所有权利。

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