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Engineering Structures, 2021
Abstract Vibration analysis of periodic multi-span power transmission line systems is conducted and their band-gap characteristics are analyzed. Nonlinear partial differential equations of a unit cell of a periodic multi-span transmission line system are derived using the extended Hamilton principle along with their boundary conditions, where there ...
W. Fan, S.H. Zhang, W.D. Zhu, H. Zhu
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Abstract Vibration analysis of periodic multi-span power transmission line systems is conducted and their band-gap characteristics are analyzed. Nonlinear partial differential equations of a unit cell of a periodic multi-span transmission line system are derived using the extended Hamilton principle along with their boundary conditions, where there ...
W. Fan, S.H. Zhang, W.D. Zhu, H. Zhu
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Applied Mathematical Modelling, 2022
Abstract Power transmission line systems may suffer from ice disasters in cold regions. In view of the applications of deicing robots in many practical cases, it is crucial to ensure the structural safety of transmission line systems during the deicing process.
Wei Fan +3 more
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Abstract Power transmission line systems may suffer from ice disasters in cold regions. In view of the applications of deicing robots in many practical cases, it is crucial to ensure the structural safety of transmission line systems during the deicing process.
Wei Fan +3 more
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Measurement Techniques, 2019
The aeroelastic instability of an ice-covered wire of overhead power transmission lines was investigated. An engineering method for calculating critical wind velocities is proposed. This method makes it possible to define the boundaries of the region of wire galloping of the split phase of a multi-span transmission line. The results that were contained
M. A. Dzhamanbaev +3 more
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The aeroelastic instability of an ice-covered wire of overhead power transmission lines was investigated. An engineering method for calculating critical wind velocities is proposed. This method makes it possible to define the boundaries of the region of wire galloping of the split phase of a multi-span transmission line. The results that were contained
M. A. Dzhamanbaev +3 more
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Theoretical Solution of the Maximum Jump Height for Multi-Span Transmission Lines After Ice Shedding
IEEE Transactions on Power DeliveryMaximum jump height evaluation is crucial for transmission line deicing and typically involves time-consuming processes such as dynamic numerical simulations and model experiments.
Xing Fu +4 more
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Aero-elastic testing of multi-spanned transmission line subjected to downbursts
Journal of Wind Engineering and Industrial Aerodynamics, 2017Abstract This paper reports the first aero-elastic test conducted under a scaled downburst wind field at the WindEEE dome facility at the University of Western Ontario, Canada. The main purpose of the test is to assess the dynamic response of a multi-span transmission line.
Amal Elawady +5 more
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International Review on Modelling and Simulations (IREMOS), 2015
Increasing the thermal rating of existing overhead transmission lines is a valid alternative to the construction of new links. Dynamic thermal rating (DTR) of power lines is particularly interesting for Transmission System Operators, because the thermal time constant of conductors is relatively high (more than 10 minutes); in case of temporary grid ...
POLI, DAVIDE, PELACCHI, PAOLO
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Increasing the thermal rating of existing overhead transmission lines is a valid alternative to the construction of new links. Dynamic thermal rating (DTR) of power lines is particularly interesting for Transmission System Operators, because the thermal time constant of conductors is relatively high (more than 10 minutes); in case of temporary grid ...
POLI, DAVIDE, PELACCHI, PAOLO
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Study on Numerical Simulation of Iced Conductor Galloping for Multi-Span Power Transmission Lines
Applied Mechanics and Materials, 2010The general expression of Lagrange nonlinear cable element is established firstly by using virtual work principle. On the basis of the theory, the specific expression of a two-node cable element having rotational degree of freedom is derived and the non-linear finite element model of multi-span transmission line for galloping analysis was established ...
Li Li, Zhi Yuan Cheng, Zi Dong Hu
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