Features of designing high-voltage overhead power lines in an underground collector
DOI:
https://doi.org/10.20998/2074-272X.2025.5.11Keywords:
compact high-voltage overhead power line, underground collector, busbar conductor, thermal modelingAbstract
Problem. Protection of HV overhead power lines (OPL) from external atmospheric and military influences and reduction of their hazardous electromagnetic radiation is possible if they are made in a compact form and placed in an underground collector. But to ensure high capacity and reliable operation of such compact HV OPL, it is necessary to improve the existing designs of their current-carrying elements. The goal of the work is to determine promising design parameters of busbars of compact high-voltage overhead power lines laid in an underground collector. The methodology for calculating permissible long-term currents of HV OPL laid in an underground collector is based on the analytical model proposed by the authors for describing the processes of mass and heat transfer in the air of an underground collector. Scientific novelty. For the first time, the possibility of efficient use of HV OPL in an underground collector conditions is substantiated and the conditions for their reliable transmission of electric energy with increased capacity are determined. This is achieved through the use of rectangular flat vertical conductive busbars with an increased surface area and providing better convective heat exchange compared to traditional round wire, as well as by determining the rated current for such overhead lines at a reduced ambient temperature (15 °C), which is typical for operating conditions in underground collectors (25 °C) adopted for overhead lines located outdoors. Practical value. The use of the proposed HV OPL laid in an underground collector should ensure reliable transmission of electrical energy, sufficient throughput and increased protection from external factors while reducing the electromagnetic impact on the environment (due to a significant reduction in the interphase distance from 3–4 m to 0.3–0.6 m for 110 kV HV OPL), and has advantages over SF6-insulated cable lines and cable lines characterized by an increased insulation cost). References 36, table 1, figures 6.
References
Faria J.H.S., Santos I.N., Rosentino A.J.P., Antunes A.H.P., Silva F.M., de Paula H. Design of an Underground, Hermetic, Pressurized, Isolated and Automated Medium Voltage Substation. IEEE Open Journal of Industry Applications, 2020, vol. 1, pp. 205-215. doi: https://doi.org/10.1109/OJIA.2020.3034764.
Shevchenko S., Danylchenko D., Hanus R., Radohuz S., Tomashevskyi R., Makhonin M., Potryvai A. Methods of Calculating Moisture Discharge Characteristics of Insulators. Problems of the Regional Energetics, 2025, no. 1(65), pp. 146-157. doi: https://doi.org/10.52254/1857-0070.2025.1-65.11.
CIGRE Joint Working Group 21/22.01. Comparison of high voltage overhead lines and underground cables - Report and Guidelines. CIGRE, 1996. 68 p.
Chino Hills Underground Project Update. 2015. 26 p. Available at: https://www.chinohills.org/DocumentCenter/View/11427 (Accessed: 26 March 2025).
GridLAB. Transmission in California. 2023. 42 p. Available at: https://gridlab.org/wp-content/uploads/2023/03/Transmission-in-California.pdf (Accessed: 26 March 2025).
华中第一个全地下变电站首台变压器吊装. Available at: http://m.cnhubei.com/content/2022-02/12/content_14493225.html (Accessed: 26 March 2025). (Chinese).
Prahladlao S. Wuhan’s First Fully Underground 220-kilovolt Substation Supports World-class Power Grid. Available at: https://www.arcweb.com/blog/wuhans-first-fully-underground-220-kilovolt-substation-supports-world-class-power-grid (Accessed: 26 March 2025).
LLC Kharkiv Design Development Institute «Teploelektroproekt-Soyuz». Unique Underground 220 kV «Smirnovo» SS Construction. Available at: https://tep-soyuz.com.ua/en/projects/raspredelenie-elektroenergii/stroitelstvo-unikalnoj-podzemnoj-ps-220-kv-smirnovo (Accessed: 26 March 2025).
Danylchenko D., Meshkov T. Study of the Possibility of Placing the Transformer Underground in Compliance with the Thermal Regime. 2024 IEEE 5th KhPI Week on Advanced Technology (KhPIWeek), 2024, pp. 1-5. doi: https://doi.org/10.1109/KhPIWeek61434.2024.10878057.
Shevchenko S., Danylchenko D., Dryvetskyi S., Potryvay A., Hanus R. Justification of the need to build underground substations and power lines. Bulletin of the National Technical University «KhPI». Series: Energy: Reliability and Energy Efficiency, 2023, no. 2(7), pp. 91-98. doi: https://doi.org/10.20998/2224-0349.2023.02.14.
Grechko O., Kulyk O. Current State and Future Prospects of Using SF6 Gas as an Insulation in the Electric Power Industry. 2024 IEEE 5th KhPI Week on Advanced Technology (KhPIWeek), Kharkiv, Ukraine, 2024, pp. 1-6. doi: https://doi.org/10.1109/KhPIWeek61434.2024.10877987.
Newton E. Overhead vs. Underground Power: Why Do We Use Both Locations? Energy Central, 2022. Available at: https://www.energycentral.com/energy-management/post/overhead-vs-underground-power-why-do-we-use-both-locations-eh64fqBV7Og1Daf (Accessed: 26 March 2025).
Fenrick S.A., Getachew L. Cost and reliability comparisons of underground and overhead power lines. Utilities Policy, 2012, vol. 20, no. 1, pp. 31-37. doi: https://doi.org/10.1016/j.jup.2011.10.002.
MacDonald M. A Comparison of Electricity Transmission Technologies: Costs and Characteristics. An Independent Report by Mott MacDonald in Conjunction with the IET. 2025, 335 p. Available at: https://www.theiet.org/media/axwkktkb/100110238_001-rev-j-electricity-transmission-costs-and-characteristics_final-full.pdf (Accessed: 26 March 2025).
SOU-N EE 20.179:2008. Calculation of electric and magnetic fields of power lines. Methodology (with changes) (in the edition of the order of the Minenergvugillya dated July 1, 2016, no. 423). Kyiv, Minenergvugillya Ukraine Publ., 2016. 37 p. (Ukr).
Rozov V.Y., Pelevin D.Y., Kundius K.D. Simulation of the magnetic field in residential buildings with built-in substations based on a two-phase multi-dipole model of a three-phase current conductor. Electrical Engineering & Electromechanics, 2023, no. 5, pp. 87-93. doi: https://doi.org/10.20998/2074-272X.2023.5.13.
Rozov V., Grinchenko V., Tkachenko O., Yerisov A. Analytical Calculation of Magnetic Field Shielding Factor for Cable Line with Two-Point Bonded Shields. 2018 IEEE 17th International Conference on Mathematical Methods in Electromagnetic Theory (MMET), 2018, pp. 358-361. doi: https://doi.org/10.1109/MMET.2018.8460425.
Rozov V.Y., Reutskyi S.Y., Pelevin D.Y., Yakovenko V.N. The research of magnetic field of high-voltage ac transmissions lines. Technical Electrodynamics, 2012, no. 1, pp. 3-9. (Rus).
Electrical installation regulations. Kharkiv, Fort Publ., 2017. 760 p. (Ukr).
Reut M.A., Rokotyan S.S. Handbook of Power Transmission Line Design. Moscow, Energiya Publ., 1980. 296 p. (Rus).
Rokotyan S.S., Shapiro I.M. Handbook of Electrical Power Systems Design. Moscow, Energoatomizdat Publ., 1985. 352 p. (Rus).
Grigsby L.L. Power systems. CRC Press, 2007. 452 p.
Pardalos P.M, Rebennack S., Pereira M.V.F., Iliadis N.A. Handbook of power systems I. Springer, 2010. 494 p.
Reddy B.S., Mitra G. Investigations on High Temperature Low Sag (HTLS) Conductors. IEEE Transactions on Power Delivery, 2020, vol. 35, no. 4, pp. 1716-1724. doi: https://doi.org/10.1109/TPWRD.2019.2950992.
Nuchprayoon S., Chaichana A. Performance Comparison of Using ACSR and HTLS Conductors for Current Uprating of 230-kV Overhead Transmission Lines. 2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), 2018, pp. 1-5. doi: https://doi.org/10.1109/EEEIC.2018.8493888.
Alawar A., Bosze E.J., Nutt S.R. A Composite Core Conductor for Low Sag at High Temperatures. IEEE Transactions on Power Delivery, 2005, vol. 20, no. 3, pp. 2193-2199. doi: https://doi.org/10.1109/TPWRD.2005.848736.
Hadzimuratovic S., Fickert L. Impact of gradually replacing old transmission lines with advanced composite conductors. 2018 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), 2018, pp. 1-5. doi: https://doi.org/10.1109/ISGTEurope.2018.8571614.
Dong X., Wang Q., Zhou Z., Li R., Liao Y., He J., Gong B., Zheng D., Chen W., Fan L., Zhu Y. Technical and Economic Analysis of Aluminum Conductor with Multi-stranded Composite Core and Its Application. 2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia), 2019, pp. 2634-2638. doi: https://doi.org/10.1109/ISGT-Asia.2019.8880908.
Lew J. Aluminum-Calcium Composite Conductors: The Future of America’s Power Grid. 2020 IEEE MIT Undergraduate Research Technology Conference (URTC), 2020, pp. 1-4. doi: https://doi.org/10.1109/URTC51696.2020.9668908.
Tian L., Russell A., Riedemann T., Mueller S., Anderson I. A deformation-processed Al-matrix/Ca-nanofilamentary composite with low density, high strength, and high conductivity. Materials Science and Engineering: A, 2017, vol. 690, pp. 348-354. doi: https://doi.org/10.1016/j.msea.2017.03.010.
Alvarez Gómez F., Garcia de María J.M., Garcia Puertas D. Numerical study of the thermal behaviour of bare overhead conductors in electrical power lines. Recent Researches in Communications, Electrical & Computer Engineering, 2011, no. 1, pp. 149-153. Available at: http://www.wseas.us/e-library/conferences/2011/Meloneras/ACELAE/ACELAE-25.pdf (Accessed: 26 March 2025).
Mikheyev M.A., Mikheyeva I.M. Basics of Heat Transfer. Moscow, Energiya Publ., 1977. 344 p. (Rus).
Wang H. Basic Heat Transfer Formulas and Data for Engineers. Moscow, Atomizdat Publ., 1979. 216 p. (Rus).
Soil temperature at 2 m depth. Available at: https://renouvelable-habitat.fr/en/soil-temperature-at-2m-depth (Accessed: 26 March 2025).
Lezhniuk P.D., Lahutin V.M., Teptia V.V. Design of electrical parts of power plants. Vinnytsia, VNTU Publ., 2009. 194 p. (Ukr).
SOU 45.2-00100227-24:2010 Protection of wires and cables of overhead power lines from wind vibrations (vibrations, galloping, sub-oscillations). Methodological guidelines.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 S. Yu. Shevchenko, D. O. Danylchenko, R. O. Hanus, S. I. Dryvetskyi, S. K. Berezka, O. M. Grechko
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish with this journal agree to the following terms:
1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
