Open AccessSimple time‐domain analysis of a multilevel DC–DC flying capacitor converter average aperiodic natural balancing dynamics
Author(s) -
Penczek Adam,
Mondzik Andrzej,
Stala Robert,
Ruderman Alex
Publication year - 2019
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2018.5070
Subject(s) - aperiodic graph , capacitor , control theory (sociology) , converters , computer science , frequency domain , time domain , booster (rocketry) , voltage , simple (philosophy) , electronic engineering , capacitive sensing , topology (electrical circuits) , engineering , electrical engineering , mathematics , control (management) , combinatorics , artificial intelligence , computer vision , aerospace engineering , philosophy , epistemology
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.