Patent ID: 11972896
Assignee: VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A method of constructing a compact balanced field enclosed winding inductor having a desired inductance Lo and a desired resistance Ro, a plurality of winding windows of the compact balanced field enclosed winding inductor comprising at least a first winding window and a second winding window, and an enclosed core constructed from magnetically permeable materials, wherein the enclosed core is comprised of a plurality of nested cores, said method comprising:
(a) predetermining a uniformity factor α of the compact balanced field enclosed winding inductor to a minimal value sufficient to maintain a benefit of a balanced field;
(b) determining a plate thickness Hp, an outer radius of the first winding window RO1, an inner radius of the first winding window RI1, and an outer radius of the second winding window RO2 of the compact balanced field enclosed winding inductor;
(c) determining radii of remaining winding windows of the plurality of winding windows of the compact balanced field enclosed winding inductor recursively, wherein the radii are limited by manufacturing constraints;
(d) determining a number of turns nj of each of the plurality of winding windows of the compact balanced field enclosed winding inductor;
(e) determining an inductance L and a resistance Rdc of the compact balanced field enclosed winding inductor based on the number of turns nj of each of the plurality of winding windows;
(f) increasing the uniformity factor α and repeating steps (b)-(e) if the inductance L is not greater than or equal to the desired inductance Lo and the resistance is not less than or equal to the desired resistance Ro; and
(g) fabricating the compact balanced field enclosed winding inductor having the plate thickness Hp, the radii of the winding windows, the number of turns nj, the inductance L, and the resistance Rdc.