Effects of wire rope isolators on seismic life-cycle cost of UHV bypass switch

IF 4.2 1区 地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY International journal of disaster risk reduction Pub Date : 2024-11-01 DOI:10.1016/j.ijdrr.2024.104917
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Abstract

The seismic isolation devices reduce the seismic vulnerability of the electrical equipment. Accurately assessing the seismic life-cycle cost (SLCC) of the electrical equipment is beneficial in guiding the design and enhancing the seismic resilience of electrical substations and converter stations. To evaluate the effects of the isolator devices on the seismic life-cycle cost of electrical equipment, a SLCC evaluation model was proposed in this study, and the evaluation was conducted on an ultra-high voltage (UHV) bypass switch (BPS) with wire rope isolators (WRI). The model takes into account equipment purchase, maintenance, transportation and installation costs and indirect losses caused by power outages. Afterward, the SLCC and break-even time of the UHV BPS with and without WRIs in different regions were analyzed. The results indicate that beyond the break-even time, the BPS with WRIs becomes more economically viable. Moreover, its economic viability increases as the service life extends. Therefore, in high seismic cost risk areas, it is recommended to adopt seismic isolation devices to ensure the secure and economically efficient operation of electrical equipment.
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钢丝绳隔离器对超高压旁路开关抗震寿命周期成本的影响
地震隔离装置可降低电气设备的地震脆弱性。准确评估电气设备的地震寿命周期成本(SLCC)有利于指导变电站和换流站的设计并提高其抗震能力。为了评估隔震装置对电气设备抗震寿命周期成本的影响,本研究提出了一个 SLCC 评估模型,并对带有钢丝绳隔震装置(WRI)的超高压旁路开关(BPS)进行了评估。该模型考虑了设备采购、维护、运输和安装成本以及停电造成的间接损失。随后,分析了不同地区带或不带钢丝绳隔离器的特高压旁路开关(BPS)的 SLCC 和盈亏平衡时间。结果表明,超过盈亏平衡时间后,带 WRI 的 BPS 在经济上更加可行。此外,随着服务寿命的延长,其经济可行性也会增加。因此,在地震成本高风险地区,建议采用地震隔离装置,以确保电气设备的安全和经济高效运行。
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来源期刊
International journal of disaster risk reduction
International journal of disaster risk reduction GEOSCIENCES, MULTIDISCIPLINARYMETEOROLOGY-METEOROLOGY & ATMOSPHERIC SCIENCES
CiteScore
8.70
自引率
18.00%
发文量
688
审稿时长
79 days
期刊介绍: The International Journal of Disaster Risk Reduction (IJDRR) is the journal for researchers, policymakers and practitioners across diverse disciplines: earth sciences and their implications; environmental sciences; engineering; urban studies; geography; and the social sciences. IJDRR publishes fundamental and applied research, critical reviews, policy papers and case studies with a particular focus on multi-disciplinary research that aims to reduce the impact of natural, technological, social and intentional disasters. IJDRR stimulates exchange of ideas and knowledge transfer on disaster research, mitigation, adaptation, prevention and risk reduction at all geographical scales: local, national and international. Key topics:- -multifaceted disaster and cascading disasters -the development of disaster risk reduction strategies and techniques -discussion and development of effective warning and educational systems for risk management at all levels -disasters associated with climate change -vulnerability analysis and vulnerability trends -emerging risks -resilience against disasters. The journal particularly encourages papers that approach risk from a multi-disciplinary perspective.
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