학술논문
Double Wound Inductor Design Optimization for the Flying Capacitor Multilevel Flyback Converter using a Modified, T-Model Magnetic Equivalent Circuit
Document Type
Conference
Source
2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Power Electronics for Distributed Generation Systems (PEDG), 2021 IEEE 12th International Symposium on. :1-7 Jun, 2021
Subject
Language
ISSN
2329-5767
Abstract
The flying capacitor multilevel flyback converter (FCMFC) utilizes a flyback transformer in conjunction with multiple switch-diode-capacitor (SDC) stages to improve operation of the basic flyback converter for DC-DC power conversion. This work explores the multi-objective optimization of the double-wound inductor of the 200W FCMFC. The core geometry will be optimized for various multilevel converters to yield the most efficient and lightweight inductor. The optimized inductor design exhibited 0.73W loss and corresponded to a basic flyback two level converter while the lightest design of 35g corresponded to a five level FCMFC. While the flyback inductor was most efficient, it was also the heaviest with an anticipated mass of 186.25g, compared to the 35g inductor that only exhibits a loss of 1.11W. All multilevel converters follow the Pareto optimal front making SDC stages a useful design variable for the magnetic optimization of a flyback converter.