Towards 500 kV power transformers damaged in the 2022 Luding earthquake: field investigation, failure analysis and seismic retrofitting
Abstract The Ms 6.8 Luding earthquake struck Sichuan province in China on September 5,
2022, triggering many failures of electrical installations in power grids. All high-voltage …
2022, triggering many failures of electrical installations in power grids. All high-voltage …
[HTML][HTML] Seismic testing and fragility analysis considering material strength uncertainty of 1100 kV GFRP composite power transformer bushing
W Zhu, Q Xie, J Lu - Case Studies in Construction Materials, 2024 - Elsevier
Nowadays glass-fibre reinforced polymer (GFRP) composite insulators are widely employed
in electrical equipment in substations. However, there is a scarcity of reports on seismic …
in electrical equipment in substations. However, there is a scarcity of reports on seismic …
A probabilistic framework to evaluate seismic resilience of substations based on three-stage uncertainty
X Liu, Q Xie - Reliability Engineering & System Safety, 2024 - Elsevier
Electrical substation systems exhibit vulnerability after an earthquake. It results in significant
economic losses because of the uncertainty of the functional state and recovery process. To …
economic losses because of the uncertainty of the functional state and recovery process. To …
Refined seismic fragility curves of substation equipment considering ground motion classifications
W Zhu, X Bian, Q Xie - Soil Dynamics and Earthquake Engineering, 2024 - Elsevier
Seismic fragility of substation equipment is vital in risk analyses, as well as post-earthquake
prediction of failure probabilities of multiple equipment for deciding the inspection order …
prediction of failure probabilities of multiple equipment for deciding the inspection order …
Two-Stage Distributionally Robust Optimization for Infrastructure Resilience Enhancement: A Case Study of 220 kV Power Substations Under Earthquake Disasters
Power substations are widely used as crucial components of power grids but also exposed
to a high risk of earthquakes. Enhancing the resilience of power substations plays an …
to a high risk of earthquakes. Enhancing the resilience of power substations plays an …
Seismic Fragility and Reliability of Base-Isolated Structures with Regard to Superstructure Ductility and Isolator Displacement Considering Degrading Behavior
A Delaviz, S Yaghmaei-Sabegh… - Journal of Earthquake …, 2024 - Taylor & Francis
The present study investigates the effects of the degradation of mechanical properties
(pinching, stiffness degradation, and strength degradation) in load-deformation relationship …
(pinching, stiffness degradation, and strength degradation) in load-deformation relationship …
Seismic vulnerability assessment of electrical substation system based on the hybrid fragility functions and Bayesian network
X Fu, DER Guo, G Li, HN Li, DJ Zhu - Earthquake Engineering & … - Wiley Online Library
Substations function as neural hubs within power systems and play pivotal roles in the
aggregation, transformation, and distribution of electrical energy. Previous experiences …
aggregation, transformation, and distribution of electrical energy. Previous experiences …