Optimizing Inductor Winding Geometry for Lowest DC-Resistance using LiveLink between COMSOL and MATLAB

Henrik Schneider, Thomas Andersen, Jakob Døllner Mønster, Mickey Pierre Madsen, Arnold Knott, Michael A. E. Andersen

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An optimization routine is presented to optimize a hybrid winding geometry for a toroid inductor in terms of the DC resistance. The hybrid winding geometry consist of bended foil pieces connected through traces in a printed circuit board. MATLAB is used to create a graphical user interface that visually plots the
winding using input parameters such as core dimensions, number of turns, clearance between windings, and the winding angle of each segment of the winding. COMSOL LiveLink is used to import the winding geometry from MATLAB and create a 2D finite element model to simulate the DC reisistance. Finally the winding configuration with the lowest DC resistance is found by sweeping the parameters of the winding geometry and simulate and save the result in each step. An improvement of more than 30% compared to previous work where achieved in this way
Original languageEnglish
Title of host publicationProceedings of the 2013 COMSOL Conference
Number of pages5
Publication date2013
Publication statusPublished - 2013
EventCOMSOL Conference - Boston Marriott Newton, Boston, United States
Duration: 9 Oct 201311 Oct 2013


ConferenceCOMSOL Conference
LocationBoston Marriott Newton
Country/TerritoryUnited States


  • Inductor
  • Resistance
  • Mesh
  • Boundary layers
  • LiveLink.


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