Problems of increasing the reliability of electrical energy transmission via high-voltage power lines in conditions of increased climate risk
Problemy zwiększania niezawodności przesyłu energii elektrycznej liniami wysokiego napięcia w warunkach zwiększonego ryzyka klimatycznego
Abitayeva R. Dzhamanbayev M. Bekbayev A. Togzhanova Z. Zhonkeshova K.
2025Mineral and Energy Economy Research Institute of the Polish Academy of Sciences
Polityka Energetyczna
2025#28Issue 15 - 31 pp.
In this article, the subject of investigation is high-voltage overhead transmission lines. As known, such lines exhibit the phenomenon of “conductor galloping.” Conductor galloping involves low-frequency oscillations with a significant amplitude, typically occurring during windy and icy conditions. These oscillations can be considered a factor that reduces the reliability of the power supply. This article aims to enhance the efficiency of using high-voltage overhead transmission lines under ice and wind conditions through the systematization of scattered information and knowledge, as well as the potential for discovering new directions in the study of conductor galloping. The analysis includes examining the results of multi-year statistical data observations on conductor galloping in power systems. Theoretical models of galloping are considered based on equations of dynamics and energy balance. Experimental data is obtained by observing a conductor galloping at a test site with the registration of vibration parameters. General reliability issues of overhead transmission lines are addressed. Results of statistical studies are analyzed, covering the complex conditions favoring the occurrence of conductor galloping, typical damages to elements of power lines, and an assessment of the expected intensity of galloping. The article presents the results from theoretical and experimental research, including physical and mathematical models of conductor galloping, conditions for instability of icy conductors in a wind flow, and some findings from experiments conducted at the test site. Methods to combat the phenomenon of “conductor galloping” are identified, providing a brief overview and analysis of existing measures to suppress conductor galloping. Suggestions are made for using the most effective and economical damper for conductor galloping in the split phase of the power line. The data presented in the article reveal key issues related to conductor galloping, existing methods for their resolution, and new avenues for researching this phenomenon and promising ideas.
conductor galloping , energy balance , ice and wind impacts , self-oscillations , vibrations of conductors
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Satbayev University, Kazakhstan
Almaty Technological University, Kazakhstan
Almaty University of Power Engineering and Telecommunications, Kazakhstan
Satbayev University
Almaty Technological University
Almaty University of Power Engineering and Telecommunications
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