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AC Conduction

ac_conduction

The AC Conduction module can be used to analyze electric field caused by time-harmonic voltages and currents on the region boundaries. The dielectric media is assumed to be non-ideal with a small but non-zero electric conductivity. Generally the quantities of interest in AC Conduction analysis are voltages, active and reactive currents, electric fields, Joule losses, capacitances, and electric forces. The AC Conduction analysis module complements other types of electrical field analysis, available in QuickField - Electrostatic and DC Conduction, taking into account both resistive and capacitive effects.
The AC Conduction module can be used to design and analyze variety of conductive systems such as capacitors, insulation systems cables, and in other technical applications.

Features of the AC Conduction module:

  • Anisotropic conductivity
  • Anisotropic permittivity
  • Voltage and current density sources
  • Dirichlet or Neumann boundary conditions
  • Results: voltages, electric fields, conductive and reactive (displacement) current densities, flux densities (electric displacements), Joule losses, self and mutual capacitances, forces, torques, and electric energy
  • Couplings: power losses can be used as heat sources (Joule heating) for thermal analysis (electro-thermal coupling). Electric forces can be used for stress analysis (electro-structural coupling)

See examples of AC Conduction problems:
Plane capacitor
Cylindrical capacitor
Slot insulation.