Large amplitude vibrations of long-span transmission lines with bundled conductors in gusty wind

Hung, Pham Viet; Yamaguchi, Hiroki; Isozaki, Masanori; Gull, Jawad H

doi:10.1016/j.jweia.2014.01.002

Cited by 35 publications

(17 citation statements)

References 18 publications

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“…The hop count will increase progressively if the network node receives RREQ for the first time. The hop count will be retransmitted to other if RREQ.type == PAN then (4) add neighbour(Node); (5) else (6) if Node.first then (7) Node.type = NORMAL; (8) Node.previous = RREQ.address; (9) Update(RREQ); (10) Transpond(RREQ); (11) else (12) add neighbour(Node); (13) end if (14) end if (15) end while Algorithm 1: Break-routing establishment.…”

Section: Journal Of Sensorsmentioning

confidence: 99%

“…Wide attention has been paid to such problems as damage to electrical insulators, detachment of spacer bars, and collapse of power transmission towers. The problem is due to various aspects, such as temperature and humidity, changes in wind power and wind speed, collision by flyers in the air, all of which accelerates the rusting and aging of lines [5,6]. Collecting and monitoring the environmental information of the long-distance transmission electrical lines by the WSN technique further promote the informatization and intellectualization levels of the smart power grids.…”

Section: Introductionmentioning

confidence: 99%

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A Cross-Layer Wireless Sensor Network Energy-Efficient Communication Protocol for Real-Time Monitoring of the Long-Distance Electric Transmission Lines

Zhang

2015

Journal of Sensors

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Optimization of energy consumption in Wireless Sensor Network (WSN) nodes has become a critical link that constrains the engineering application of the smart grid due to the fact that the smart grid is characterized by long-distance transmission in a special environment. The paper proposes a linear hierarchical network topological structure specific to WSN energy conservation in environmental monitoring of the long-distance electric transmission lines in the smart grid. Based on the topological structural characteristics and optimization of network layers, the paper also proposes a Topological Structure be Layered Configurations (TSLC) routing algorithm to improve the quality of WSN data transmission performance. Coprocessing of the network layer and the media access control (MAC) layer is achieved by using the cross-layer design method, accessing the status for the nodes in the network layer and obtaining the status of the network nodes of the MAC layer. It efficiently saves the energy of the whole network, improves the quality of the network service performance, and prolongs the life cycle of the network.

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Section: Journal Of Sensorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Cross-Layer Wireless Sensor Network Energy-Efficient Communication Protocol for Real-Time Monitoring of the Long-Distance Electric Transmission Lines

Zhang

2015

Journal of Sensors

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“…Also, a review on dynamic aspects, design and parametric study of transmission lines [16], analysis of an aeroelastic model of a real single transmission line span considering its flexural rigidity of the lattice tower, mass and drag using scaling method [17], large amplitude vibrations of ice-accreted/unaccreted conductors in transmission lines under wind force using eigenvalue analysis [18], and dynamic analysis of transmission lines using finite element method [19] have been presented. Recently, dynamic characteristics of transmission lines under turbulent downburst loading [20], measurement of their vibrations based on a heterodyne method [21], characteristics of the raininduced vibrations [22], an ice-detachment failure model for iced overhead electrical conductors [23], and modelling of the ice shedding propagation with or without spacers [24] have been performed.…”

Section: Introductionmentioning

confidence: 99%

Optimum design of tuned mass damper via PSO algorithm for the passive control of forced oscillations in power transmission lines

Abbasi

Moradi

2020

SN Appl. Sci.

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Transmission lines are prone to external excitations due to their low density and internal damping coefficient. They are vulnerable to some natural events such as wind and rain which may disrupt power transmission. Forced vibration due to external disturbances is one of the most frequent causes of failures in these lines. In this study, effects of tuned-massdampers (TMDs) on reduction of forced vibrations are investigated. A mathematical model for the transmission line is proposed by using mode summation technique combined with the dynamics of the absorbers. Best values for the location, stiffness and mass of the absorbers are found by using Particle Swarm Optimization algorithm (damping coefficients are obtained as zero). The objective of the algorithm is to minimize the line deflection to postpone the failure and the replacement of the lines. Results show that the designed TMDs are efficient in reduction of forced vibrations. Finally, the same procedure is implemented under resonance condition. The designed TMDs lead to a high reduction factor in the line deflection. Similarly, the proposed optimization algorithm can be used in other industrial applications of the flexible cables; under various external excitations.

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“…Numerical simulations of turbulent wind action were validated by one year in-situ monitoring of the existing long span transmission line and described in [14]. Another set of field measurements, focused on wind action, performed on three long overhead transmission lines together with FEM analyses were described in [15].…”

Section: Introductionmentioning

confidence: 99%

Simulation of stochastic wind action on transmission power lines

Wielgos

Lipecki

Flaga

2018

AIP Conference Proceedings

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Abstract. The paper presents FEM analysis of the wind action on overhead transmission power lines. The wind action is based on a stochastic simulation of the wind field in several points of the structure and on the wind tunnel tests on aerodynamic coefficients of the single conductor consisting of three wires. In FEM calculations the section of the transmission power line composed of three spans is considered. Non-linear analysis with deadweight of the structure is performed first to obtain the deformed shape of conductors. Next, time-dependent wind forces are applied to respective points of conductors and non-linear dynamic analysis is carried out.

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Large amplitude vibrations of long-span transmission lines with bundled conductors in gusty wind

Cited by 35 publications

References 18 publications

A Cross-Layer Wireless Sensor Network Energy-Efficient Communication Protocol for Real-Time Monitoring of the Long-Distance Electric Transmission Lines

A Cross-Layer Wireless Sensor Network Energy-Efficient Communication Protocol for Real-Time Monitoring of the Long-Distance Electric Transmission Lines

Optimum design of tuned mass damper via PSO algorithm for the passive control of forced oscillations in power transmission lines

Simulation of stochastic wind action on transmission power lines

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