A Dual-Input Single-Output DC-DC Converter Topology for Renewable Energy Applications

Gunawardena, Pasan; Hou, Nie; Nayanasiri, Dulika; Li, Yunwei

doi:10.1109/ecce47101.2021.9595220

Cited by 2 publications

(2 citation statements)

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“…Therefore, a great deal of importance is attached to the development of DC technology, because it provides Distribution System Operators (DSOs) with flexible DC power distribution schemes. In the family of DC/DC converters, the multiport DC/DC converter (MPC) is a potential solution to integrate different DC components, such as power generation, DC microgrid, energy storage system and charging station of EV [2]- [5], etc. The attractive advantages of MPCs include 1) reduced device count; 2) high power density and conversion efficiency; 3) centralized communication-free control.…”

Section: Introductionmentioning

confidence: 99%

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Topologies of Isolated Multiport Converters for DC Grid Applications: A Review

Zhang

Chen

2022

2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)

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Isolated multiport DC/DC converters (MPC) are functional solutions for integrating renewable energy sources, increasing the efficiency of power distribution, and reinforcing DC grids. Although the concept of MPC has been proposed for past two decades, the applications of the MPC are upgrading as development of DC grids. The various MPC topologies have been proposed in previous work. This paper presents an overview about the topology of isolated MPCs applied in DC grids. This paper is dedicated to provide the comprehensive insights in isolated MPCs according to three main aspects in terms of converter configuration, potential application, and control feasibility. According to different applications, this paper classifies MPCs into three categories, including two-level MPC, three-level MPC, and multi-level MPC. Two different configurations of MPCs, multi-winding transformer type and multi-transformer type are discussed. In addition, a comparative analysis is performed in terms of circuit and operation conditions. The key technique problems and potential solutions are discussed. Finally, the future trends for the development of MPC are discussed. Keywords-DC/DC converter, DC grids, modular multilevel converter (MMC), neutral-point clamped (NPC) converter, multiport converter, isolated DC/DC converter.

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Section: Introductionmentioning

confidence: 99%

“…Note that another common way to design a multiport configuration is to reconfigure AC/DC modules. For example, [4] and [5] split the DC-link of the dual-active-bridge (DAB) converter by using interleaved inductors. However, this method fails to perform fully galvanic isolation for each DC port.…”

Section: Introductionmentioning

confidence: 99%