Interlink Converter for Hybrid AC to Bipolar DC Microgrid or to Two DC Microgrids

Pires, V. Fernão; Foito, Daniel; Cordeiro, Armando; Roncero‐Clemente, Carlos; Martins, J. F.; Pires, A. J.

doi:10.1109/iecon49645.2022.9968367

Cited by 4 publications

(1 citation statement)

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“…Taking into consideration the development of the present technology and the future reality of electrical generators and loads, DC microgrids started to arise as an important alternative to AC infrastructures. It is expected that in the very near future, AC and DC infrastructures will present themselves as complementary solutions [12][13][14][15][16]. In this context, the perspectives for the near future of DC microgrids are presented in this paper.…”

Section: Introductionmentioning

confidence: 99%

DC Microgrids: Benefits, Architectures, Perspectives and Challenges

Pires

Cordeiro

2023

Energies

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One of the major paradigm shifts that will be predictably observed in the energy mix is related to distribution networks. Until now, this type of electrical grid was characterized by an AC transmission. However, a new concept is emerging, as the electrical distribution networks characterized by DC transmission are beginning to be considered as a promising solution due to technological advances. In fact, we are now witnessing a proliferation of DC equipment associated with renewable energy sources, storage systems and loads. Thus, such equipment is beginning to be considered in different contexts. In this way, taking into consideration the requirement for the fast integration of this equipment into the existing electrical network, DC networks have started to become important. On the other hand, the importance of the development of these DC networks is not only due to the fact that the amount of DC equipment is becoming huge. When compared with the classical AC transmission systems, the DC networks are considered more efficient and reliable, not having any issues regarding the reactive power and frequency control and synchronization. Although much research work has been conducted, several technical aspects have not yet been defined as standard. This uncertainty is still an obstacle to a faster transition to this type of network. There are also other aspects that still need to be a focus of study and research in order to allow this technology to become a day-to-day solution. Finally, there are also many applications in which this kind of DC microgrid can be used, but they have still not been addressed. Thus, all these aspects are considered important challenges that need to be tackled. In this context, this paper presents an overview of the existing and possible solutions for this type of microgrid, as well as the challenges that need to be faced now.

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