A Generalized Input Impedance Model of Multiple Active Bridge Converter

Yang, Jiajun; Buticchi, Giampaolo; Gu, Chunyang; Gunter, Sandro; Zhang, He; Wheeler, Pat

Abstract

The electrical power distribution system (EPDS) of the more electric aircraft (MEA) is a fundamental component that needs to be efficient and resilient. The commonly considered architectures feature separate buses to achieve separation between different subsections of the EPDS. Although effective, this implies an over design, since all subsections are sized for the local worst case scenarios. In the MEA concept, multiport converters could connect the whole EPDS while guaranteeing the galvanic isolation between buses. Since multiport converters would give rise to a completely different EPDS topology, dominated by power electronics interfaces, the stability of such a system must be assessed. This article investigates the input impedance of multiple active bridge (MAB) converters when interfaced with a single dc bus and multiple resistive loads. A transfer function-based input impedance model of the MAB converter is proposed. To validate the proposed input impedance model, the verification of input impedances of a triple active bridge (TAB) converter and a quadruple active bridge (QAB) converter is carried out using both simulation and experimental results.

• Journal Article Type: Article
• Acceptance Date: Mar 31, 2020
• Online Publication Date: Apr 8, 2020
• Publication Date: 2020-12
• Deposit Date: Jan 13, 2021
• Publicly Available Date: Jan 13, 2021
• Journal: IEEE Transactions on Transportation Electrification
• Electronic ISSN: 2372-2088
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 6
• Issue: 4
• Pages: 1695-1706
• DOI: https://doi.org/10.1109/tte.2020.2986604
• Public URL: https://nottingham-repository.worktribe.com/output/5008670
• Publisher URL: https://ieeexplore.ieee.org/document/9061042
• Additional Information: © 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.