Study on Adaptive Excitation System of Transmission Line Galloping Based on Electromagnetic Repulsive Mechanism

Due to the uncontrollable weather conditions, it is difficult to carry out the controllable prototype test to study fatigue damage of transmission tower and armour clamp and the effect evaluation of antigalloping device under actual transmission line galloping. Considering the geometric nonlinearity...

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Autores principales: Jiangjun Ruan, Li Zhang, Wei Cai, Daochun Huang, Jian Li, Zhihui Feng
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Lenguaje:EN
Publicado: Hindawi Limited 2021
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Acceso en línea:https://doaj.org/article/52648aed0b8744688c592fd0a3a71536
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spelling oai:doaj.org-article:52648aed0b8744688c592fd0a3a715362021-11-08T02:35:26ZStudy on Adaptive Excitation System of Transmission Line Galloping Based on Electromagnetic Repulsive Mechanism1875-920310.1155/2021/2428667https://doaj.org/article/52648aed0b8744688c592fd0a3a715362021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/2428667https://doaj.org/toc/1875-9203Due to the uncontrollable weather conditions, it is difficult to carry out the controllable prototype test to study fatigue damage of transmission tower and armour clamp and the effect evaluation of antigalloping device under actual transmission line galloping. Considering the geometric nonlinearity of the transmission line system, this study proposed an adaptive excitation method to establish the controllable transmission line galloping test system based on the Den Hartog vertical oscillation mechanism. It can skip the complicated process of nonlinear aerodynamic force simulation. An electromagnetic repulsion mechanism based on the eddy current principle was designed to provide periodic excitation for the conductor system according to the adaptive excitation method. The finite element model, including conductor, insulator string, and electromagnetic mechanism, was established. Newmark method and fourth-order Runge-Kutta algorithm were used to complete the integrated simulation calculation. By comparing with the measured data record of the actual transmission line galloping test, the results show that the proposed adaptive galloping excitation system can effectively reconstruct the key characteristics of the actual transmission line galloping, such as amplitude, frequency, galloping mode, and dynamic tension, and make the galloping state controllable. Thus, a series of research about transmission line galloping with practical engineering significance can be carried out.Jiangjun RuanLi ZhangWei CaiDaochun HuangJian LiZhihui FengHindawi LimitedarticlePhysicsQC1-999ENShock and Vibration, Vol 2021 (2021)
institution DOAJ
collection DOAJ
language EN
topic Physics
QC1-999
spellingShingle Physics
QC1-999
Jiangjun Ruan
Li Zhang
Wei Cai
Daochun Huang
Jian Li
Zhihui Feng
Study on Adaptive Excitation System of Transmission Line Galloping Based on Electromagnetic Repulsive Mechanism
description Due to the uncontrollable weather conditions, it is difficult to carry out the controllable prototype test to study fatigue damage of transmission tower and armour clamp and the effect evaluation of antigalloping device under actual transmission line galloping. Considering the geometric nonlinearity of the transmission line system, this study proposed an adaptive excitation method to establish the controllable transmission line galloping test system based on the Den Hartog vertical oscillation mechanism. It can skip the complicated process of nonlinear aerodynamic force simulation. An electromagnetic repulsion mechanism based on the eddy current principle was designed to provide periodic excitation for the conductor system according to the adaptive excitation method. The finite element model, including conductor, insulator string, and electromagnetic mechanism, was established. Newmark method and fourth-order Runge-Kutta algorithm were used to complete the integrated simulation calculation. By comparing with the measured data record of the actual transmission line galloping test, the results show that the proposed adaptive galloping excitation system can effectively reconstruct the key characteristics of the actual transmission line galloping, such as amplitude, frequency, galloping mode, and dynamic tension, and make the galloping state controllable. Thus, a series of research about transmission line galloping with practical engineering significance can be carried out.
format article
author Jiangjun Ruan
Li Zhang
Wei Cai
Daochun Huang
Jian Li
Zhihui Feng
author_facet Jiangjun Ruan
Li Zhang
Wei Cai
Daochun Huang
Jian Li
Zhihui Feng
author_sort Jiangjun Ruan
title Study on Adaptive Excitation System of Transmission Line Galloping Based on Electromagnetic Repulsive Mechanism
title_short Study on Adaptive Excitation System of Transmission Line Galloping Based on Electromagnetic Repulsive Mechanism
title_full Study on Adaptive Excitation System of Transmission Line Galloping Based on Electromagnetic Repulsive Mechanism
title_fullStr Study on Adaptive Excitation System of Transmission Line Galloping Based on Electromagnetic Repulsive Mechanism
title_full_unstemmed Study on Adaptive Excitation System of Transmission Line Galloping Based on Electromagnetic Repulsive Mechanism
title_sort study on adaptive excitation system of transmission line galloping based on electromagnetic repulsive mechanism
publisher Hindawi Limited
publishDate 2021
url https://doaj.org/article/52648aed0b8744688c592fd0a3a71536
work_keys_str_mv AT jiangjunruan studyonadaptiveexcitationsystemoftransmissionlinegallopingbasedonelectromagneticrepulsivemechanism
AT lizhang studyonadaptiveexcitationsystemoftransmissionlinegallopingbasedonelectromagneticrepulsivemechanism
AT weicai studyonadaptiveexcitationsystemoftransmissionlinegallopingbasedonelectromagneticrepulsivemechanism
AT daochunhuang studyonadaptiveexcitationsystemoftransmissionlinegallopingbasedonelectromagneticrepulsivemechanism
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