Vulnerability Assessment of UHV Converter Station Considering Cognitive Uncertainty

2023 9th International Symposium on System Security, Safety, and Reliability (ISSSR) Pub Date : 2023-06-01 DOI:10.1109/ISSSR58837.2023.00049

Hongjun Wang, Kai Wang, Man Luo, Tangfan Xiahou, Changhua Zhang

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Abstract

UHV converter station is a complex system that includes a variety of electrical equipment and buildings. In order to study the seismic resilience of UHV converter station, a systematic analysis method based on successful flow is proposed. This method comprehensively considers relationship between the electrical equipment, buildings’ location, and electrical power transmission paths, and then establishes reliability evaluation model of the UHV converter station which takes aftershock residual transmission capability as evaluation index. With the seismic vulnerability curve of the electrical equipment, the Monte Carlo simulation method is used to realize the aftershock vulnerability analysis. The model is used to evaluate seismic resilience of one real UHV converter station in Sichuan Province of China. Computation results shows its residual electrical power transmission capability when meets different level earthquakes. The research benefits to evaluate power grids’ seismic resilience and improve power supply reliability.

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考虑认知不确定性的特高压换流站脆弱性评估

特高压换流站是一个复杂的系统，包括各种电气设备和建筑物。为了研究特高压换流站的抗震性能，提出了一种基于成功流的系统分析方法。该方法综合考虑电气设备、建筑物位置和电力输送路径之间的关系，建立了以余震剩余输电能力为评价指标的特高压换流站可靠性评价模型。根据电气设备的地震易损性曲线，采用蒙特卡罗模拟方法，实现了电气设备的余震易损性分析。利用该模型对四川某特高压换流站的抗震性能进行了评价。计算结果表明了其在遇到不同级别地震时的剩余输电能力。研究结果对评价电网的抗震能力，提高供电可靠性具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2023 9th International Symposium on System Security, Safety, and Reliability (ISSSR)

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