Analysis and Design of Coupled Inductor for Interleaved Buck-Type Voltage Balancer in Bipolar DC Microgridopen access
- Authors
- Park, Jung-min; Byun, Hyung-jun; Kim, Bum-jun; Kim, Sung-hun; Won, Chung-yuen
- Issue Date
- Jun-2020
- Publisher
- MDPI
- Keywords
- voltage balancer; coupled inductor; bipolar DC microgrid; interleaved-type DC-DC converter; LVDC distribution system
- Citation
- ENERGIES, v.13, no.11
- Indexed
- SCIE
SCOPUS
- Journal Title
- ENERGIES
- Volume
- 13
- Number
- 11
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/4325
- DOI
- 10.3390/en13112775
- ISSN
- 1996-1073
1996-1073
- Abstract
- A voltage balancer (VB) can be used to balance voltages under load unbalance in either a bipolar DC microgrid or LVDC (Low voltage DC) distribution system. An interleaved buck-type VB has advantages over other voltage balance topologies for reduction in output current ripple by an aspect of configuration of a physically symmetrical structure. Similarly, magnetic coupling such as winding two or more magnetic components into a single magnetic component can be selected to enhance the power density and dynamic response. In order to achieve these advantages in a VB, this paper proposes a VB with a coupled inductor (CI) as a substitute for inductors in a two-stage interleaved buck-type VB circuit. Based on patterns of switch poles under load variation, the variation in inductor currents under four switching patterns is induced. The proposed CI is derived from self-inductance based on the configuration structure that has a two-stage interleaved buck type and mathematical design results based on the coupling coefficient, where the coupling coefficient is a key factor in the determination of the dynamic response of the proposed VB in load variation. According to the results, a prototype scale is implemented to confirm the feasibility and effectiveness of the proposed VB.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - Information and Communication Engineering > School of Electronic and Electrical Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/4325)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.