Electromagnetic Transients in Strongly Non-Uniform Overhead High Voltage Lines

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Year : 2025 | Volume :15 | Issue : 01 | Page : 31-40
By
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Mohamed Mostafa Saied,

  1. Professor, Department of Electrical Engineering, Kuwait University), Independent Researcher IEEE Life Senior Member Giza, Cairo, Egypt

Abstract

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This paper addresses the electromagnetic transients in high strongly non-uniform overhead voltage lines. For their simulation, a novel Laplace-domain approach has been introduced. The voltage and current patterns in terms of location and complex frequency are determined by a set of simultaneous algebraic and partial differential equations. To solve them numerically, an effective Mathematica code is proposed. By contrasting the outcomes of their application to multiple case studies with those acquired elsewhere using different methodologies, the model and related computer program are validated. For contemporary power systems, electromagnetic transients in overhead high voltage lines pose special opportunities and challenges, especially in highly non-uniform setups. The basic causes, mathematical modelling, and applications of these transients are examined in this article. Transient behavior under non-uniform line conditions—such as changes in conductor shape, ground proximity, and environmental factors—is highlighted. In order to improve grid stability and reliability, the paper also examines mitigation strategies and suggests directions for further study.

Keywords: Electromagnetic, Transients, Simulation, Non-Uniform, High Voltage Lines, Mathematica, Numerical Solutions, Laplace Inversion. Parameter Studies

[This article belongs to Journal of Power Electronics and Power Systems (jopeps)]

How to cite this article:
Mohamed Mostafa Saied. Electromagnetic Transients in Strongly Non-Uniform Overhead High Voltage Lines. Journal of Power Electronics and Power Systems. 2025; 15(01):31-40.
How to cite this URL:
Mohamed Mostafa Saied. Electromagnetic Transients in Strongly Non-Uniform Overhead High Voltage Lines. Journal of Power Electronics and Power Systems. 2025; 15(01):31-40. Available from: https://journals.stmjournals.com/jopeps/article=2025/view=0

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References

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[5] Mohamed Mostafa Saied: “Novel Laplace-Domain Approach to the Electromagnetic Transients in Compensated High Voltage Power Lines”. International Journal of Electrical Machine Analysis and Design. 2024; 2(1): 15-21.

[6] Rakosh D. Begamudre. “Extra-High Voltage AC Transmission Engineering”, Book, Wiley-Eastern Limited, Second Edition, 1986.

[7] Yousef Safar, Mohamed Saied: ‘The Feasibility of Multiple-Capacitor Long Line Series Compensation”, Journal for Electric Machines and Power Systems, USA, Vol. 23, No. 5, Sept./Oct. 1995, pp. 483-500

[8] Mohamed Saied:  Effect of The Conductor Sag on the Electromagnetic Transients in High Voltage Lines”. International Journal Analog Integrated Circuits, Volume 10, Issue 1, Available from:

[9] Mohamed Mostafa Saied: “Effect of the Conductor Sag on the Electromagnetic Transients in High Voltage Lines”, International Journal of Analog Integrated Circuits, 2024; 10(1): 8-16.

[10] M. M. Saied, “Optimal Long Line Series Compensation,” in IEEE Transactions on Power Delivery, vol. 1, no. 2, pp. 248-253, April 1986, doi: 10.1109/TPWRD.1986.4307957.

[11] Mohamed Saied. The Fault Transients and Varistor Energy Dissipation in MOV-Protected Series-Compensated Power Lines’,

[12] Mohamed Saied: “Transient Response of Power Networks to Pulse Inputs of Non-Standard Wave forms: Analysis and Case Studies”. International Journal of Analog Integrated Circuits. November 2022; 9(1): 25-32.

[13] Rudresh B. Magadum, D. B. Kulkarni :”Performance Enhancement of Distribution Network by Optimal Placement of Multiple Capacitors USING FKBC”, Conference paper, First Online: 27 March 2020, Part of the book series: Advances in Intelligent Systems and Computing (AISC, volume 1119)

[14] Mohamed Saied: A New Approach to the Laplace-domain Transient Analysis of Non-uniform Lines with Application to Power Line Towers. Trends in Electrical Engineering. 2019; 9(3): 1-10.

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Regular Issue Subscription Review Article
Volume 15
Issue 01
Received 20/12/2024
Accepted 27/12/2024
Published 07/01/2025
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