Simple time‐domain analysis of a multilevel DC–DC flying capacitor converter average aperiodic natural balancing dynamics. Issue 5 (4th March 2019)

• Record Type: Journal Article
• Authors: Penczek, Adam; Mondzik, Andrzej; Stala, Robert; Ruderman, Alex
• Is Part Of: IET power electronics. Volume 12:Issue 5(2019)
• Page Start: 1179
• Page End: 1186
• Publication Date: 2019-03-04
• Subjects: switching convertors -- DC‐DC power convertors -- time‐domain analysis -- Fourier transforms -- frequency‐domain analysis -- power capacitors; balance booster circuit -- simple time‐domain analysis -- frequency‐domain Fourier transformations -- high mathematical skills -- time‐domain power averaging‐based approach -- switched capacitive converter -- pure resistive load -- multilevel DC–DC flying capacitor converter -- natural voltage balancing dynamics analysis -- dual capacitor converter -- single capacitor converter -- infinite series -- average aperiodic natural balancing dynamics; Power electronics -- Periodicals; 621.31705
• DOI: 10.1049/iet-pel.2018.5070
• Languages: English
• ISSNs: 1755-4535

Abstract

Abstract : Reported capacitor average natural voltage balancing dynamics analysis methods are mostly based on frequency‐domain Fourier transformations that involve infinite series. Therefore, these methods require high mathematical skills, are not truly analytical and difficult to use in engineering practise. This study suggests a time‐domain power averaging‐based approach to the analysis of a multilevel DC–DC flying capacitor converter (or, more generally, switched capacitive converter) aperiodic (non‐oscillating) average voltage balancing dynamics. Simple analytical solutions are illustrated by single and dual capacitor converter examples that include pure resistive load and balance booster circuit. Theoretical results are supported by simulations and experimental verification.