Back to the future: A need for multi-drop Ethernet for cost-effective power distribution

Christensen, Ken; Nordman, Bruce

doi:10.1109/lcn.2014.6925796

“…In contrast, DC can be deployed in a variety of ways, which differ in the topology of the wiring (e.g., radial, ring, ladder, or mesh bus architectures) and in whether the distribution system is managed. Managed DC technologies include communications for managing power distribution within a power cable [37]; examples include USB and Power over Ethernet (PoE).…”

Section: Distribution Standardsmentioning

confidence: 99%

Adoption Pathways for DC Power Distribution in Buildings

Vossos

¹

,

Gerber

²

,

Gaillet-Tournier

³

et al. 2022

Self Cite

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Driven by the proliferation of DC energy sources and DC end-use devices (e.g., photovoltaics, battery storage, solid-state lighting, and consumer electronics), DC power distribution in buildings has recently emerged as a path to improved efficiency, resilience, and cost savings in the transitioning building sector. Despite these important benefits, there are several technological and market barriers impeding the development of DC distribution, which have kept this technology at the demonstration phase. This paper identifies specific end-use cases for which DC distribution in buildings is viable today. We evaluate their technology and market readiness, as well as their efficiency, cost, and resiliency benefits while addressing implementation barriers. The paper starts with a technology review, followed by a comprehensive market assessment, in which we analyze DC distribution field deployments and their end-use characteristics. We also conduct a survey of DC power and building professionals through on-site visits and phone interviews and summarize lessons learned and recommendations. In addition, the paper includes a novel efficiency analysis, in which we quantify energy savings from DC distribution for different end-use categories. Based on our findings, we present specific adoption pathways for DC in buildings that can be implemented today, and for each pathway we identify challenges and offer recommendations for the research and building community.

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“…In contrast, DC can be deployed in a variety of ways, which differ in the topology of the wiring (e.g., radial, ring, ladder, or mesh bus architec-tures) and in whether the distribution system is managed. Managed DC technologies include communications for managing power distribution within a power cable [36]; examples include USB and Power over Ethernet (PoE).…”

Section: Distribution Standardsmentioning

confidence: 99%

Adoption Pathways for DC Power Distribution in Buildings

Vossos¹,

Gerber²,

Gaillet-Tournier³

et al. 2021

Preprint

Self Cite

2

0

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Driven by the proliferation of DC energy sources and DC end-use devices (e.g., photovoltaics, battery storage, solid-state lighting, and consumer electronics), DC power distribution in buildings has recently emerged as a path to improved efficiency, resilience, and cost savings in the transitioning building sector. Despite these important benefits, there are several technological and market barriers impeding the development of DC distribution, which have kept this technology at the demonstration phase. This paper identifies specific end-use cases for which DC distribution in buildings is viable today. We evaluate their technology and market readiness, as well as their efficiency, cost, and resiliency benefits while addressing implementation barriers. The paper starts with a technology review, followed by a comprehensive market assessment, in which we analyze DC distribution field deployments and their end-use characteristics. We also conduct a survey of DC power and building professionals through on-site visits and phone interviews and summarize lessons learned and recommendations. In addition, the paper includes a novel efficiency analysis, in which we quantify energy savings from DC distribution for different end-use categories. Based on our findings, we present specific adoption pathways for DC in buildings that can be implemented today, and for each pathway we identify challenges and offer recommendations for the research and building community.

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“…However, except of Ethernet, these technologies cannot provide decentralized communications in a reliable manner. The possibility to implement Ethernet over microgrid systems were reviewed very recently by [42], [43]. These works demonstrates Ethernet's applicability for DER's data exchange allowing share bandwidth to all connected devices and it demonstrates that Ethernet can be used in a real time as well as a great scale.…”

Section: Distributed Communication Technologies For Smart Microgridsmentioning

confidence: 99%

Current challenges and future trends in the field of communication architectures for microgrids

Marzal

¹

,

Salas

²

,

González-Medina

³

et al. 2018

Renewable and Sustainable Energy Reviews

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The concept of microgrid has emerged as a feasible answer to cope with the increasing number of distributed renewable energy sources which are being introduced into the electrical grid. The microgrid communication network should guarantee a complete and bidirectional connectivity among the microgrid resources, a high reliability and a feasible interoperability. This is in a contrast to the current electrical grid structure which is characterized by the lack of connectivity, being a centralized-unidirectional system. In this paper a review of the microgrids information and communication technologies (ICT) is shown. In addition, a guideline for the transition from the current communication systems to the future generation of microgrid communications is provided. This paper contains a systematic review of the most suitable communication network topologies, technologies and protocols for smart microgrids. It is concluded that a new generation of peer-to-peer communication systems is required towards a dynamic smart microgrid. Potential future research about communications of the next microgrid generation is also identified.

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Back to the future: A need for multi-drop Ethernet for cost-effective power distribution

Cited by 5 publications

References 5 publications

Adoption Pathways for DC Power Distribution in Buildings

Adoption Pathways for DC Power Distribution in Buildings

Adoption Pathways for DC Power Distribution in Buildings

Current challenges and future trends in the field of communication architectures for microgrids

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