Review on dynamic and quasi-static buffeting response of transmission lines under synoptic and non-synoptic winds

Aboshosha, Haitham; Elawady, Amal; Ansary, Ayman M. El; Damatty, Ashraf El

doi:10.1016/j.engstruct.2016.01.003

Cited by 76 publications

(13 citation statements)

References 101 publications

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“…Transmission line damage caused by strong winds (the average wind speed at a height of 10 m is greater than 10.8 m/s, corresponding to a Beaufort number greater than 6) still frequently happens. In Argentina, Australia, Brazil, Canada, Japan, South Africa, and the United States, more than 80% of the transmission lines damage in these countries is caused by extreme winds [9]. For example, in September 1961, Hurricane Carla caused over $1.5 million in damage to utility companies in Houston, USA [10].…”

Section: Introductionmentioning

confidence: 99%

Wind-Induced Coupling Vibration Effects of High-Voltage Transmission Tower-Line Systems

Zhang

Zhao

Wang

et al. 2017

Shock and Vibration

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A three-dimensional finite element model of a 500 kV high-voltage transmission tower-line coupling system is built using ANSYS software and verified with field-measured data. The dynamic responses of the tower-line system under different wind speeds and directions are analyzed and compared with the design code. The results indicate that wind speed plays an important role in the tower-line coupling effect. Under the low wind speed, the coupling effect is less obvious and can be neglected. With increased wind speed, the coupling effect on the responses of the tower gradually becomes prominent, possibly resulting in the risk of premature failure of the tower-line system. The designs based on the quasi-static method stipulated in the current design code are unsafe because of the ignorance of the adverse impacts of coupling vibration on the transmission towers. In practical engineering, when the quasi-static method is still used in design, the results for the design wind speed should be multiplied by the corresponding tower-line coupling effect amplifying coefficient .

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Section: Introductionmentioning

confidence: 99%

Wind-Induced Coupling Vibration Effects of High-Voltage Transmission Tower-Line Systems

Zhang

Zhao

Wang

et al. 2017

Shock and Vibration

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“…The average wind speed at a height of 10 m is greater than Beaufort number 6, corresponding to 10.8 m/s. [24].…”

Section: Weather Hazard Identificationmentioning

confidence: 99%

Early Warning Weather Hazard System for Power System Control

2022

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Power systems and their primary components, mostly the transmission and distribution of overhead lines, substations, and other power facilities, are distributed in space and are exposed to various atmospheric and meteorological conditions. These conditions carry a certain level of risk for reliable electrical power delivery. Various atmospheric hazards endanger the operation of power systems, where the most significant are thunderstorms, wildfire events, and floods which can cause various ranges of disturbances, faults, and damages to the power grid, or even negatively affect the quality of life. By utilizing a weather monitoring and early warning system, it is possible to ensure a faster reaction against different weather-caused fault detections and elimination, to ensure a faster and more adequate preparation for fighting extreme weather events, while maintaining overhead line protection and fault elimination. Moreso, it is possible to bypass overhead lines that have the highest risk of unfavorable meteorological events and hazards, and reroute the energy, thus providing electricity to endangered areas in times of need while minimizing blackouts, and consequently, improving the quality of human life. This paper will present an analysis of the various risks of atmospheric phenomena, in the meteorological and climate context, and discuss various power system components, the power system control, operations, planning, and power quality. A concept with the main functionalities and data sources needed for the establishment of an early warning weather hazard system will be proposed. The proposed solution can be used as a utility function in power system control to mitigate risks to the power system due to atmospheric influences and ongoing climate change.

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“…Studies have found that the overhead lines have obvious dynamic characteristics under the action of a fluctuating wind, so researchers use the dynamic analysis method to study the dynamic wind-induced deflection response of overhead transmission lines by taking the wind load containing fluctuating wind as the excitation [8][9][10][11][12][13]. M.R.…”

Section: Introductionmentioning

confidence: 99%

Calculation of the Dynamic Wind-Induced Deflection Response of Overhead Lines: Establishment and Analysis of the Multi-Rigid-Body Model

Wang

Tian

2020

IEEE Access

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Wind-induced deflection flashover severely endangers the normal operation of overhead transmission lines. This paper proposes a multi-rigid-body model for the accurate and efficient calculation of the dynamic wind-induced deflection response of overhead transmission lines under high wind conditions, given the dynamic equation and the general value of the number of equivalent rigid rods of the multi-rigid-body model. The accuracy of the multi-rigid-body model is verified through comparison with the finite element method (FEM) for an engineering example calculation. The efficiency of the multi-rigidbody model is indicated by comparing the time required to solve the wind-induced deflection response of overhead transmission lines with different numbers of spans. In contrast to the traditional static analysis method, the multi-rigid-body model can consider the dynamic characteristics in the wind-induced deflection of overhead lines, which makes the calculation results more accurate. Compared with the FEM, the multirigid-body model is easier to use and faster to solve. It is beneficial for development and application in engineering. INDEX TERMS overhead transmission lines, dynamic wind-induced deflection response, multi-rigid-body model, accuracy, efficiencyThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.

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Review on dynamic and quasi-static buffeting response of transmission lines under synoptic and non-synoptic winds

Cited by 76 publications

References 101 publications

Wind-Induced Coupling Vibration Effects of High-Voltage Transmission Tower-Line Systems

Wind-Induced Coupling Vibration Effects of High-Voltage Transmission Tower-Line Systems

Early Warning Weather Hazard System for Power System Control

Calculation of the Dynamic Wind-Induced Deflection Response of Overhead Lines: Establishment and Analysis of the Multi-Rigid-Body Model

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