It. Wallace et al., INDUCTOR DESIGN FOR HIGH-POWER APPLICATIONS WITH BROAD-SPECTRUM EXCITATION, IEEE transactions on power electronics, 13(1), 1998, pp. 202-208
The design of high-power inductors for applications with broad current
spectrum excitation is a challenging task, The resonant inductor of a
resonant de-link inverter (RDCLI) is one such example, The inductor c
urrent consists of a resonant current component, a de component, which
supplies the active power to the load and a modulation component, whi
ch depends on the modulation strategy, In addition, the frequency and
amplitude of the dominant current components change with operating poi
nt, Conventional inductor designs for single-frequency excitation do n
ot perform well in broad-spectrum applications, In order to improve th
ese designs, the impact of broad current spectrums on winding design,
core selection, power density, and thermal-handling capability must be
investigated, In this paper, alternate inductor topologies, which bet
ter address the above issues, are proposed and investigated.