Results 1 to 10 of about 2,173 (141)

Influence of corrosion on the electrical and mechanical performance of hybrid busbars [PDF]

International Journal of Lightweight Materials and Manufacture, 2022
This paper is focused on the electrical and mechanical performance of aluminum-copper hybrid busbars subjected to corrosion over time. Two different types of hybrid busbars with joints produced by conventional fastening with M8 hexagonal socket head bolt-
Rui F.V. Sampaio, João P.M. Pragana, Ivo M.F. Bragança, Carlos M.A. Silva, João C.S. Fernandes, Paulo A.F. Martins   +5 more
doaj   +6 more sources

Double-Flush Riveting for Hybrid Busbar Assembly [PDF]

Metals
This paper explores a novel double-flush riveting process for assembling hybrid busbars made from aluminum and copper sheets. The process involves drilling and forging countersunk holes with controlled geometry in both materials followed by compression ...
Rui F. V. Sampaio, João P. M. Pragana, Miguel P. Figueiredo, Ivo M. F. Bragança, Carlos M. A. Silva, Paulo A. F. Martins   +5 more
doaj   +3 more sources

Joining of hybrid busbars for E-Mobility: An economic and environmental study

Journal of Advanced Joining Processes, 2023
This paper presents a model to evaluate and analyze the costs of joining hybrid (copper-aluminum) busbars when different production processes are deployed. The process-based cost model (PBCM) is built upon the subdivision of the production cycle in three
João PM Pragana, Miguel ST Sapage, Rui FV Sampaio, Ivo MF Bragança, Ines Ribeiro, Carlos MA Silva, Paulo AF Martins   +6 more
doaj   +4 more sources

Electric performance of hybrid busbar joints under service and high voltage conditions

Journal of Advanced Joining Processes, 2023
This paper is focused on hybrid busbar joints with a twofold objective of understanding the differences in electrical resistance under service conditions and evaluating their performance when subjected to hazardous high voltages. Three different types of
G.R. Prieto, J.P.M. Pragana, R.F.V. Sampaio, I.M.F. Bragança, C.M.A. Silva, P.A.F. Martins   +5 more
doaj   +3 more sources

A hybrid intelligent busbar protection strategy using hyperbolic S‐transforms and extreme learning machines [PDF]

Engineering Reports, 2021
In power systems, busbars connect important components such as generators, transmission lines, and loads. A typical fault occurrence on the busbar may result in the isolation of faulty sections from other normally operating parts of the system resulting ...
Abolfazl Rahimnejad, Milad Gil, Aliakbar Abdoos, S. Andrew Gadsden   +3 more
doaj   +4 more sources

Exploring wire-arc additive manufactured rivets for joining hybrid electrical busbars

Journal of Advanced Joining Processes
This paper presents a joining by plastic deformation process for fabricating hybrid electrical busbars made from copper and aluminum sheets. The process comprises the innovative use of wire-arc additive manufacturing to deposit copper rivets at specific ...
Pedro M.S. Rosado, Rui F.V. Sampaio, João P.M. Pragana, Ivo M.F. Bragança, Carlos M.A. Silva, Paulo A.F. Martins   +5 more
doaj   +4 more sources

Electric performance of fastened hybrid busbars: An experimental and numerical study

Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, 2021
This paper is focused on fastened hybrid busbars made from copper and aluminium with the purpose of analysing the influence of the steel bolts, of their tightening torque and of the surface condition of the sheets on the electric current flow and electric resistance of the joints.
Sampaio, Rui F. V., Pragana, João P. M., Bragança, Ivo, Silva, Carlos M. A ., Nielsen, Chris Valentin, Martins, P.A.F.   +5 more
openaire   +4 more sources

Optimal Transmission Switching and Busbar Splitting in Hybrid Ac/Dc Grids [PDF]

Driven by global climate goals, an increasing amount of Renewable Energy Sources (RES) is currently being installed worldwide. Especially in the context of offshore wind integration, hybrid AC/DC grids are considered to be the most effective technology to transmit this RES power over long distances. As hybrid AC/DC systems develop, they are expected to
Bastianel, Giacomo, Vanin, Marta, Van Hertem, Dirk, Ergun, Hakan   +3 more
  +6 more sources

Electro-Mechanical Synergy in the Design of Hybrid Busbar Distribution Systems [PDF]

MATEC Web of Conferences
This paper focuses on electric energy distribution and utilizes injection lap riveting to assemble two different configurations of copper-aluminum (hybrid) busbar distribution systems with geometric variations. A combined experimental-numerical methodology is employed to investigate the influence of the different configurations and geometries on ...
Pragana João P.M., Sampaio Rui F.V., Rosado Pedro M.S., Bragança Ivo M.F., Silva Carlos M.A., Martins Paulo A.F.   +5 more
openaire   +3 more sources

Test of a DC-HTS Busbar Demonstrator for Power Distribution in Hybrid-Electric Propulsion Systems for Aircraft

IOP Conference Series: Materials Science and Engineering, 2022
Abstract In the framework of the German project TELOS (Thermo-Electrically Optimised Aircraft Propulsion Systems) a high-temperature superconducting 40 MVA DC demonstrator busbar for hybrid-electric propulsion systems for aircraft has been developed. The design current for a temperature below 25 K is 13.3 kA and the rated voltage is 3 kV.
Schlachter, Sonja, Brand, J., Elschner, S., Fink, S., Holzapfel, B., Kudymow, A., Willms, J.   +6 more
openaire   +3 more sources