Open AccessCalculation of self‐ and mutual inductances of rounded rectangular coils with rectangular cross‐sections and misalignments
Author(s) -
Dehui Wu,
Qisheng Sun,
Xiaohong Wang,
Fang Cheng
Publication year - 2018
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.815
H-Index - 97
eISSN - 1751-8679
pISSN - 1751-8660
DOI - 10.1049/iet-epa.2017.0860
Subject(s) - inductance , structural engineering , geometry , materials science , mathematics , electrical engineering , engineering , voltage
Rounded rectangular coils are more common in wireless power applications. It is important in practical engineering to calculate the self‐ and mutual inductances of rounded rectangular coils. A new model of the self‐ and mutual inductances of rounded rectangular coils with rectangular cross‐sections is derived in this study. The proposed formulae are applicable not only to the rounded rectangular coils, but also to the extreme cases such as circular, rectangular, and race‐track coils. The coil layouts including coaxial alignment and lateral misalignments are also discussed. Comparison of calculated self‐ and mutual inductances with experimental observations is provided and an excellent agreement between the two proves the feasibility of the proposed formulae.