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Flux Applications for Electromagnetic Compatibility

A wide set of tools, models and capabilities

For the analysis of EMC (Electromagnetic Compatibility) phenomena, Flux offers numerous models and capabilities focused on low and middle frequency computations. Accurate, efficient and robust simulation methodologies are provided in:

  • Flux 3D, focusing on the study of the magnetic effects of electric energy installations on health as well as magnetic performances of grounding and shielding systems

  • Flux PEEC, able to analyze stray impedances (R, L and C) of electrical interconnections, as well as common-mode current distributions within power electronics subsystems.

  • FEKO, used for immunity and radiated emissions testing, shielding effectiveness, radiation hazard (RADHAZ) analysis, electromagnetic pulses (EMP), lightning analysis, high intensity radiated fields (HIRF)

An extensive variety of results

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

  • Current density in all parts of the studied system, with skin, proximity and capacitive effects considered

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

  • Electrical quantities in all circuit components used for modelling sources, loads, decoupling capacitors, etc.

  • 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...) .

Addressing a large range of applications

Typical EMC applications where Flux simulations provide valuable support for designers are:

  • Electrical installations (overhead lines, power cables, transformers or even complete distribution stations) which must consider restrictive country regulations to avoid unsafe effects on people’s health;

  • Grounding systems of HEV vehicles, aircrafts and trains where magnetic bodies, carbon-composite fuselages and chassis are used as current return paths and whose electromagnetic behavior is very different between the lowest (few Hz) and medium (hundreds of kHz) frequencies

  • Power electronics devices where stray impedances (resistive, inductive and capacitive couplings) of the electrical interconnections generate unwanted resonances and possibly significant noise voltage drops;

  • Electronic subsystems where common-mode currents flow between the external box and the PCB planes, increasing the risk not to comply with EMC limits imposed by standards.

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