DOUBLE LOGARITHMIC DISTRIBUTION BASED SEISMIC FRAGILITY ANALYSIS OF PORCELAIN ELECTRICAL EQUIPMENT

被引：0
|
作者：
Li J.-C. [1 ,2 ]
Shang Q.-X. [3 ]
Luo Q.-Y. [4 ]
Wang T. [1 ,2 ]
机构：
[1] Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Heilongjiang, Harbin
[2] Key Laboratory of Earthquake Disaster Mitigation, Ministry of Emergency Management, Heilongjiang, Harbin
[3] Department of Civil Engineering, Tsinghua University, Beijing
[4] China Academy of Building Research, Beijing
来源：
Gongcheng Lixue/Engineering Mechanics | / 41卷 / 02期
关键词：
double logarithmic distribution; electrical equipment; seismic fragility curve; substation system; system functionality;
D O I：
10.6052/j.issn.1000-4750.2022.03.0261
中图分类号：
学科分类号：
摘要：
Existing data on fragility functions of the 110 kV and 220 kV equipment are summarized and expressed by double logarithmic model to reflect the significant discreteness between different studies. The median capacities, randomness, and uncertainties of major 110 kV and 220 kV equipment are determined. Based on these parameters, the seismic performance, in particularly, the system functionality, of a 220 kV substation is assessed. The double logarithmic model is capable of reflecting the discreteness of the seismic fragilities of equipment in different studies, especially the uncertainties caused by modelling and analysis methods. The substation is found to be more vulnerable to earthquakes compared with individual pieces of equipment, indicating that the redundancy considered in current design should be improved. The substation’s median capacities are positively related to component median capacities, negatively related to component randomness and uncertainties. © 2024 Tsinghua University. All rights reserved.
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页码：125 / 136
页数：11
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