Title :
An investigation of the analytical computation of inductance and AC resistance of the heat-coil for induction cookers
Author :
Koertzen, H.W.E. ; van Wyk, J.D. ; Ferreira, J.A.
Author_Institution :
Lab. for Energy, Rand Afrikaans Univ., Johannesburg, South Africa
Abstract :
An investigation of a computer-implemented analytical model for the design of a heat-coil for induction cookers in comparison with a finite-element simulation is presented. The inductance of the coil can be calculated, taking the effect of the presence of a ferrite disk and workpiece into account. The program is fast and easy to use on any PC and gives acceptable results. This theory can also be used for the design of other forms of heat-coils for induction heating. Unfortunately, the analytical approach does not provide a sufficiently accurate magnetic field distribution to permit proper calculation of the losses under operational conditions. One of the reasons for this may be that the method of images for the magnetic properties is actually for an infinite plane of magnetic material. The effect of the finite size of the ferrite disk and workpiece thus causes serious errors
Keywords :
computer aided analysis; domestic appliances; electric resistance; induction heating; ovens; power engineering computing; AC resistance; PC; analytical model; computer program; design; ferrite disk; finite-element simulation; heat-coil; induction cookers; induction heating; infinite plane; magnetic field distribution; magnetic material; magnetic properties; method of images; workpiece; Analytical models; Coils; Computational modeling; Computer simulation; Ferrites; Finite element methods; Inductance; Magnetic analysis; Magnetic fields; Magnetic properties;
Conference_Titel :
Industry Applications Society Annual Meeting, 1992., Conference Record of the 1992 IEEE
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-0635-X
DOI :
10.1109/IAS.1992.244423
