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Flux Applications for Power Cables and Busbars

Powerful tools for power lines analysis - Designing cables, power bars and busbars

To guide engineers in the design of power connection structures, like cables, power bars and busbars, Flux features a complete set of capabilities and electromagnetic models, as well as thermal methodologies. Moreover, coupled magneto-thermal simulations are also available in the same software framework.

Thanks to the efficient and robust computations accurate results are provided which the engineers can run using:

  • Flux 2D and 3D, to study power cables: current distribution, losses with skin and proximity effects being taken into account, temperature variations and insulation voltages are examples of physical quantities provided, in steady state as well as in transient working conditions

  • Flux PEEC, mostly dedicated to the analysis of power bars and busbars, thanks to its capabilities to model long and/or flat geometries; typical available studies are extra-losses due to temperature variations and to skin and proximity effects, unbalanced current sharing, mutual capacitive couplings, switching over voltages and magnetic efforts on conductors in nominal or short-circuit conditions.

Extensive variety of results

Flux multiparametric solver allows easy access to a large variety of results, such as:

  • Current density and temperature map in all parts of the studied system, with skin, proximity and thermal effects being considered, Joule losses and magnetic efforts (Lorentz/Laplace forces) on conductors, possibly exchangeable with thermal and mechanical solvers to perform multiphysics simulations

  • Radiated magnetic field in the surrounding space and in all conductive/magnetic regions;

  • Electric field distribution in insulating parts, as well as dielectric breakdown paths

  • Electrical quantities in all circuit components used as supplying sources and loads plugged to the cable or the busbar

  • Computations on various supports (points, paths, grids, groups of regions/conductors) with results displaying on various manners (color shaded maps, arrows, 2D/3D curves, raw tables)

  • Inductive and capacitive matrices representing the parasitic couplings between conductors

  • Synthesis of RLC equivalent macro-models in the most advanced standard formats (SPICE, Modelica, VHDL-AMS…) and for the most common circuit solvers (SABER, Portunus…)

Multiphysics analysis and optimization studies

In addition to coupled magneto-thermal simulations that are available inside the Flux environment, the tool has an intrinsic ability to exchange data with external thermal (AcuSolve) and mechanical (OptiStruct) software to further improve the accuracy of multiphysics analysis of power cables and busbars.

Coupling with optimization/DoE tools, like HyperStudy, enables Flux users to increase the performances of the designed system; e.g. the minimization of the raw material costs or of the generated losses, while respecting the imposed constraints (maximum currents, maximum electric field in insulations, wire diameters, etc.). Computation time of such optimization processes can be dramatically reduced thanks to the connection of Flux with HPC systems (PBS).

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