Steady-state analysis of soft-switching converters

Author

Egiziano, L. ; Femia, N. ; Spagnuolo, G. ; Vitelli, M.

Author_Institution

D.I.I.I.E, Salerno Univ., Fisciano, Italy

Volume

2

fYear

2001

fDate

2001

Firstpage

978

Abstract

Steady-state analysis of soft-switching converters is treated in this paper. Finding the steady-state solution of soft-switching converters by means of start-up transient simulation may involve onerous computations and convergence failure because of the mix of fast and slow natural frequencies determined respectively by the presence of soft-switching Lr-Cr cells elements and bulky L-C filter elements. The numerical method proposed in this paper shows high reliability and fast convergence, thanks to the adoption of an interval analysis-based technique for the detection of commutations and of a compensation theorem-based technique for the analysis of commutations. An example, discussed in depth, of steady-state analysis of a DC-DC converter is presented to highlight the good performances of the simulation algorithm

Keywords

DC-DC power convertors; commutation; compensation; switching circuits; transient analysis; DC-DC converter; bulky L-C filter; commutations; commutations detection; compensation theorem-based technique; convergence failure; fast convergence; fast natural frequencies; high reliability; interval analysis-based technique; numerical method; slow natural frequencies; soft-switching LrCr cells; soft-switching converters; start-up transient simulation; steady-state analysis; Algorithm design and analysis; Analytical models; Computational modeling; Convergence of numerical methods; DC-DC power converters; Filters; Frequency conversion; Performance analysis; Reliability theory; Steady-state;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, 2001. IECON '01. The 27th Annual Conference of the IEEE

Conference_Location

Denver, CO

Print_ISBN

0-7803-7108-9

Type

conf

DOI

10.1109/IECON.2001.975902

Filename

975902