A Survey on Multi-Active Bridge DC-DC Converters: Power Flow Decoupling Techniques, Applications, and Challenges
Author:
Koohi Peyman12ORCID, Watson Alan J.1ORCID, Clare Jon C.1ORCID, Soeiro Thiago Batista2ORCID, Wheeler Patrick W.1ORCID
Affiliation:
1. Power Electronics and Machines Centre (PEMC), School of Electrical and Electronics Engineering, University of Nottingham, Nottingham NG7 2GT, UK 2. Department of Electrical Engineering, Mathematics and Computer Science (EEMCS), University of Twente, 7500 AE Enschede, The Netherlands
Abstract
Multi-port DC-DC converters are a promising solution for a wide range of applications involving multiple DC sources, storage elements, and loads. Multi-active bridge (MAB) converters have attracted the interest of researchers over the past two decades due to their potential advantages such as high power density, high transfer ratio, and galvanic isolation, for example, compared to other solutions. However, the coupled power flow nature of MAB converters makes their control implementation difficult, and due to the multi-input, multi-output (MIMO) structure of their control systems, a decoupling control strategy must be designed. Various control and topology-level strategies are proposed to mitigate the coupling effect. This paper discusses the operating principles, applications, methods for analyzing power flow, advanced modulation techniques, and small signal modelling of the MAB converter. Having explained the origin of cross-coupling, the existing power flow decoupling methods are reviewed, categorized, and compared in terms of effectiveness and implementation complexity.
Funder
European Union’s EU Framework Programme
Subject
Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction
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