A Quantitative Analysis of Effects of Transition from AC to DC System, on Storage and Distribution Systems

Asad, Roozbeh; Kazemi, A.

doi:10.1109/appeec.2012.6307519

Cited by 12 publications

(9 citation statements)

References 16 publications

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“…Each alternative has different characteristics, implying different advantages and drawbacks that must be assessed. The comparisons between the two types of MGs in terms of control, protections and power losses are analysed in [17][18][19][20]. In these publications, the advantages and disadvantages of each technology are analysed, identifying and classifying the configurations and feasible architectures required to implement a MG.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Electrical Microgrids and Associated Technologies

San-Martín¹,

Asensio²,

Zamora³

et al. 2019

REPQJ

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This paper focuses on the most relevant aspects on the energy generation and storage technologies integration into electrical microgrids (MGs) structures. In this sense, the most important characteristics associated with electric generation resources proposed for this type of grids are reviewed. Additionally, energy storage technologies are analysed for the most appropriate integration into MGs. Finally, the manuscript reviews the most outstanding MGs developed around the world that include the integration of the most advanced generation and storage technologies.

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Section: Introductionmentioning

confidence: 99%

Analysis of Electrical Microgrids and Associated Technologies

San-Martín¹,

Asensio²,

Zamora³

et al. 2019

REPQJ

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“…It is often noted that early local power systems used DC power, beginning with Edison's Pearl Street Station in Manhattan; however, DC was less amenable to transmission over long distances, which was the key advantage that allowed AC to ultimately dominate [1]. Our legacy power system paradigm dates from George Westinghouse's ambitious and successful 1895 Niagara Falls Power Project.…”

Section: Evolving Electricity Deliverymentioning

confidence: 99%

Building scale DC microgrids

Marnay

Lanzisera

Städler

et al. 2012

2012 IEEE Energytech

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Abstract-The structure of both electricity supply and demand is evolving rapidly. Dispersed building-scale generation is becoming an increasingly familiar generation source and electronics based loads are ubiquitous. Given this landscape, the historic advantages of AC electricity delivery, while still strong in the high voltage realm of meshed grids and medium voltage distribution, is seeming less attractive for emerging small-scale semiautonomous systems, generally known as microgrids (or µgrids). The dominance of small-scale photovoltaics or variable frequency sources in small systems, together with the likely emergence of fuel cells and required batteries suggest a DC bus. Similarly, building loads increasingly involve DC somewhere in their electricity supply path. Given these circumstances, DC µgrids potentially eliminate conversion losses with their associated heat management problems and costs, as well as providing high quality service to loads. This paper discusses these trends and other factors that are pushing our power system towards a more decentralized paradigm, and one more reliant on DC systems.

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“…Moreover, AC conversion is required at the system output. Hence, using this system in the DC microgrid results in a significant overall power loss reduction expressed as follows [11] www.witpress. …”

Section: Power Loss Reduction In the DC Storage Systemmentioning

confidence: 99%

“…This results in further power loss reduction with the ohmic resistance reduction. The power loss reduction discussed in Shenai and Shah [10] and Asad and Kazemi [11] is expressed as follows:…”

Section: Power Loss Reduction In the Distribution Linementioning

confidence: 99%

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Rationale for the use of DC microgrids: feasibility, efficiency and protection analysis

Seyedmahmoudian

Arrisoy

Kavalchuk

et al. 2015

WIT Transactions on Ecology and the Environment

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Electrical power systems are undergoing highly significant changes in their structures. The emergence of renewable energy units in the power generation sector, the use of high-voltage DC in the power transmission sector, and the prevalence of islanded or integrated microgrids in the distribution sector are the strongest evidence supporting this claim. These changes are mostly the consequences of the increasing energy demand rate, climate change, and environmental challenges, as well as the high investment and maintenance cost of the previous structures. Considering these new conditions and according to the recent development in DC/DC conversion topologies and control techniques, different studies have been conducted on how and why DC microgrids outperform AC microgrids. This study discusses the feasibility of the DC microgrid system according to recent developments in power systems. The efficiency and power loss reduction in DC distribution systems are then analyzed, some of the common strategies and devices for protection systems in such networks are reviewed, and the possible and existing challenges in developing the DC microgrids are highlighted. The mathematical calculations and theories for this evaluation are presented to determine the reliable justification for selecting the appropriate microgrid systems.

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A Quantitative Analysis of Effects of Transition from AC to DC System, on Storage and Distribution Systems

Cited by 12 publications

References 16 publications

Analysis of Electrical Microgrids and Associated Technologies

Analysis of Electrical Microgrids and Associated Technologies

Building scale DC microgrids

Rationale for the use of DC microgrids: feasibility, efficiency and protection analysis

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