Autors: Slavchev, Y. C., Mateev, V. M., Tzeneva, R. T.
Title: 3D coupled electric-thermal-fluid analysis of bolted busbar connection
Keywords: Bolted busbar connections, Contact resistivities, Cooling co

Abstract: This paper presents a 3D multiphysics mechanical-electric-thermal-fluid analysis of a typical real configuration of bolted busbar connection, with the influence of the contact resistivity taken into account. Transient operational mode has been studied and temperature field distributions as time-dependent results are obtained and presented. The temperature rise in the connections has been considered due to different cooling conditions represented as natural air convection around the connection. Free air convection is modeled as fluid dynamics problem. The influence of the contact force in the bolts as well as the increased contact resistance on the thermal performance of the connections is also discussed


  1. Tzeneva, R., 2012, Investigation of high power bolted busbar connectors with longitudinal slots, Przeglad Elektrotechniczny, Volume 88(11 A), pp. pp. 223-226
  2. Hadzhiev, I., Malamov, D., Yatchev, I., 2015, Study of the influence of the force on the contact resistance between copper busbars VII-th Conference of Faculty of Electrical Engineering-EF, Sozopol, Bulgaria, 19-21 September 2015, <Proceedings of Technical University of Sofia, 66 (1), pp. 549-556>, TU-Sofia
  3. Malamov, D., 2013, Experimental investigation of the contact resistance in bolted bus-bars connections, Rhodes Island, Greece, 16-19 July 2013, <Resent Advances in Telecommunications and Circuit Design, Proceedings of the 17th International Conference on Circuits (Part of CSCC '13), pp. 25-29>, WSEAS Press
  4. Holm, R., 1976, Electric Contacts. Theory and Application, Berlin, Germany, Springer-Verlag
  5. Fontes, E., 2016, Introduction to Modeling Natural Convection in COMSOL Multiphysics , December 23, COMSOL Blog, <>, Дата на последен преглед (Last accessed on): 19.11.2020
  6. Ansys Inc., 2018, Ansys Workbench Manual, Ansys Inc., <>, Дата на последен преглед (Last accessed on): 25.06.2019


16th Conference on Electrical Machines, Drives and Power Systems, ELMA 2019 - Proceedings, vol. ELMA 2019, issue 16, pp. Article number 8771547, 2019, Bulgaria, IEEE Inc, DOI 10.1109/ELMA.2019.8771547

Copyright IEEE

Цитирания (Citation/s):
1. Cai, Y., Guo, W., Sang, W., Guo, F., Tian, C., Yu, S., An Improved Multiphysics Analysis Model for the Short-Circuit Fault Ride-Through Capability Evaluation of the MMC Submodule Busbar, (2021) IEEE Access, 9, art. no. 9523562, pp. 119090-119099. DOI: 10.1109/ACCESS.2021.3108048 - 2021 - в издания, индексирани в Scopus или Web of Science
2. Krčum, M., Zubčić, M., Kaštelan, N., Gudelj, A., Reducing the dimensions of the ship’s main switchboard—A contribution to energy efficiency, (2021) Energies, 14 (22), art. no. 7567, DOI: 10.3390/en14227567 - 2021 - в издания, индексирани в Scopus или Web of Science
3. Kaštelan, Nediljko, Igor Vujović, Maja Krčum, and Nur Assani. 2022. "Switchgear Digitalization—Research Path, Status, and Future Work" Sensors 22, no. 20: 7922. - 2022 - в издания, индексирани в Scopus или Web of Science
4. M. Frivaldsky, "Evaluation of thermal performance of automotive inverter with laminar busbars," 2022 International Conference on Applied Electronics (AE), 2022, pp. 1-5, doi: 10.1109/AE54730.2022.9920055. - 2022 - в издания, индексирани в Scopus или Web of Science

Вид: пленарен доклад в международен форум, публикация в реферирано издание, индексирана в Scopus