TY - JOUR
T1 - Design and Assessment of a Planar Inductor for a 32-kW High Power Density DC-DC Converter
AU - Herrera-Aparicio, Brenda Angelica
AU - Araujo-Vargas, Ismael
AU - Cano-Pulido, Kevin
AU - Cui, Han
AU - Granados-Luna, Teresa Raquel
AU - Lopez-Salgado, Christian Ivan
N1 - Publisher Copyright:
© 2013 IEEE.
PY - 2023/6/1
Y1 - 2023/6/1
N2 - A uniform-flux inductor (UFI) design strategy is described in this article to improve the gravimetric power density of the common inductor of a 32-kW, 350-V dual-interleaved buck-boost dc-dc converter. The strategy consists of an unusual, enclosed winding arrangement that virtually distributes the core magnetic flux density outcoming in a more compact inductor. The resultant common inductor's weight and volume are reduced by 41% and 24%, respectively, and the power density is increased to 7.9 kW/kg. A COMSOL multiphysics finite-element software (COMSOL) numerical prediction confirms almost uniform flux density distribution along the magnetic core axes. Estimation of the inductance, power losses, and thermal behavior is also analyzed. Construction assessment is described for a 7- μH, 150-kHz, 180-A inductor, which is experimentally verified in a 350-V, 32-kW prototype. The experiments reveal that the built UFI properly operates ensuring both electrical and thermal stability.
AB - A uniform-flux inductor (UFI) design strategy is described in this article to improve the gravimetric power density of the common inductor of a 32-kW, 350-V dual-interleaved buck-boost dc-dc converter. The strategy consists of an unusual, enclosed winding arrangement that virtually distributes the core magnetic flux density outcoming in a more compact inductor. The resultant common inductor's weight and volume are reduced by 41% and 24%, respectively, and the power density is increased to 7.9 kW/kg. A COMSOL multiphysics finite-element software (COMSOL) numerical prediction confirms almost uniform flux density distribution along the magnetic core axes. Estimation of the inductance, power losses, and thermal behavior is also analyzed. Construction assessment is described for a 7- μH, 150-kHz, 180-A inductor, which is experimentally verified in a 350-V, 32-kW prototype. The experiments reveal that the built UFI properly operates ensuring both electrical and thermal stability.
KW - Medium-power dc-dc converter
KW - planar inductor
KW - tapered coil
KW - uniform flux density distribution
UR - http://www.scopus.com/inward/record.url?scp=85151548065&partnerID=8YFLogxK
U2 - 10.1109/JESTPE.2023.3261322
DO - 10.1109/JESTPE.2023.3261322
M3 - Artículo
AN - SCOPUS:85151548065
SN - 2168-6777
VL - 11
SP - 3359
EP - 3370
JO - IEEE Journal of Emerging and Selected Topics in Power Electronics
JF - IEEE Journal of Emerging and Selected Topics in Power Electronics
IS - 3
ER -