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Electric power
About: Electric power is a research topic. Over the lifetime, 73036 publications have been published within this topic receiving 636991 citations.
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TL;DR: The results show that by identifying the optimum data center locations, combining the multi-hop bypass heuristic with renewable energy and the replication scheme, power consumption savings of up to 73% can be achieved.
Abstract: Most of the previous research on data centers power consumption has focused on understanding how to minimize the power consumption inside the data center. It is, however, also important to investigate the power consumption associated with transporting data between data centers and end users. In this paper, we consider three problems. First, through linear programming (LP) models and through simulations we determine the optimal location of a data center or multiple data centers in an IP over wavelength-division-multiplexing network so as to minimize the network's power consumption. Here, we consider the impact of network topology, traffic profile, upload and download rates, number of data centers and the impact of power minimization on delay. Second, we study how to replicate content that has different popularity to minimize power consumption through the use of an LP model. Here, we consider five classes (but the models are general) of content that have different levels of popularity and consider multiple data centers. The optimization attempts to identify where to store a data object that has a given popularity such that the network's power consumption is minimized. We have also developed a novel routing algorithm, energy-delay optimal routing, to minimize the power consumption of the network under replication while maintaining QoS. Third, we investigate through LP the problem of whether to locate data centers next to renewable energy or to transmit renewable energy to data centers in a given network topology under different traffic conditions and taking into account the network components' power consumption. Given a number of wind Farms whose locations are known together with the electrical power transmission losses, we identify the optimal location of data centers such that the network's power consumption is minimized and consider a network where the nodes that are not connected to wind farms have access to solar power. The results show that by identifying the optimum data center locations, combining the multi-hop bypass heuristic with renewable energy and the replication scheme, power consumption savings of up to 73% can be achieved.
245 citations
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TL;DR: In this article, the authors highlight the importance of the North American power grid as the most important engineering achievement of the 20th century, with particular emphasis on the integration of renewable energy resources.
Abstract: Although the North American power grid has been recognized as the most important engineering achievement of the 20th century, the modern power grid faces major challenges [87]. Increasingly complex interconnections even at the continent size render prevention of the rare yet catastrophic cascade failures a strenuous concern. Environmental incentives require carefully revisiting how electrical power is generated, transmitted, and consumed, with particular emphasis on the integration of renewable energy resources. Pervasive use of digital technology in grid operation demands resiliency against physical and cyberattacks on the power infrastructure. Enhancing grid efficiency without compromising stability and quality in the face of deregulation is imperative. Soliciting consumer participation and exploring new business opportunities facilitated by the intelligent grid infrastructure hold a great economic potential.
245 citations
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TL;DR: In this article, the authors calculate three parameters of electric drive vehicles (EDVs) which are important for their use by the electric system: resources size, availability, and economic potential.
Abstract: Electric-drive vehicles can become and important resource for the California electric utility system, with consequent air pollution, system reliability, and economic benefits. We refer to electric power resources from vehicles as “Vehicle to Grid†power (V2G). The economic value of some forms of V2G appear high, more than enough to offset the initially higher costs of electric-drive vehicles, thus having the potential to accelerate their introduction. To realize this potential, some coordination of vehicle and infrastructure planning will be needed. This study calculates three parameters of electric drive vehicles (EDVs) which are important for their use by the electric system: resources size, availability, and economic potential.
244 citations
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TL;DR: In this article, the authors examined the central structural and behavioral obstacles to success of DR programs and outlined some potential solutions which could greatly improve the functionality and success of such programs in the future.
244 citations
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01 Jan 2008
TL;DR: In this article, the authors introduce the principles of electrical power control, overview of power electronics converters and control quality problems in smart networks, and case studies in Distributed Electrical Power System High Frequency AC Power Distribution Platforms Integration of Distributed Generation with Electrical Power Systems Active Power Quality Controllers Energy Storage Systems Variable and Adjustable Speed Generation Systems Grid Integration of Wind Energy Systems Grid integration of Photovoltaics and Fuel Cells
Abstract: Introduction Principles of Electrical Power Control Overview of Power Electronics Converters and Controls Quality Problems in Smart Networks EMC Cases in Distributed Electrical Power System High Frequency AC Power Distribution Platforms Integration of Distributed Generation with Electrical Power System Active Power Quality Controllers Energy Storage Systems Variable and Adjustable Speed Generation Systems Grid Integration of Wind Energy Systems Grid Integration of Photovoltaics and Fuel Cells
243 citations