CALCULATION OF 3-DIMENSIONAL ELECTROMAGNE TIC-FIELDS DURING INDUCTION-HEATING

A numerical 3D-calculation method for the simulation of the electromag netic field during high frequency induction heating or induction strip heating, i.e. in case of thin current-carrying layers, is presented. In addition, the described programme allows to calculate the distribut ions of power and force as well as integral quantities, for example th e impedance, the voltage and the active power. The parts of the setup to be considered are assigned to certain groups according 'to their el ectromagnetic properties. Each group has its specific boundary conditi ons at the surface describing the electromagnetic field. The calculati on program uses the boundary element method and takes into account the set-up specific symmetries. Therefore the program runs, on computers (PC, Workstations), which are widely available for research and develo pment purposes nowadays. Finally, two examples basing on industrial ap plications show the efficiency of the developed program.