Lightning-Induced Voltages over Gaussian-Shaped Terrain Considering Different Lightning Strike Locations
Source abstract
Abstract
Lightning-induced voltages (LIVs) computation is crucial for lightning protection of power systems and equipment, yet the effect of complex terrain on LIVs remains not fully evaluated. This study establishes a three-dimensional finite-difference time-domain model to investigate the LIVs over Gaussian-shaped mountainous terrain, considering different lightning strike locations. Simulation results show that the influence of Gaussian-shaped mountains on LIVs is directly related to the lightning strike location. Compared with the flat ground scenario, the LIVs’ amplitude can increase by approximately 56% when lightning strikes the mountain top. However, for lightning strikes to the ground adjacent to the mountain, the LIVs’ amplitude is attenuated to varying degrees due to the shielding effect of the mountain. Additionally, the influences of line configuration, as well as mountain height and width on the LIVs, are evaluated.
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Research context
OpenAlex topics: Lightning and Electromagnetic Phenomena · Fire effects on ecosystems · Plant responses to water stress
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Ocean College, Jiangsu University of Science and Technology, Zhenjiang 212013, China
Key Laboratory of Meteorological Disaster, Ministry of Education (KLME)/Joint International Research Laboratory of Climate and Environment Change (ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disaster (CIC-FEMD)/Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing 210044, China
Funding
National Natural Science Foundation of China · Natural Science Foundation of Jiangsu Province · PhD Research Startup Foundation of Jiangsu University of Science and Technology
References (55)
Show source-provided references
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