electric power grid Articles
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Repair strategies for minimising the risk of cascading failures in electricity networks
In this work, we develop repair strategies for simplified models of electric power grids. The goal is to gain insight into the combinatorial properties of repair problems in order to improve maintenance and restoration planning. Firstly, we consider a seriously damaged grid and try to find the set of lines that should be repaired first in order to resupply the customers as fast as possible. We ...
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Security, trust, and QoS in next-generation control and communication for large power systems
The present communication architecture supporting control of the electric power grid makes it difficult to use the wealth of data collected at high rates in substations, retarding their use in new applications for controlling the grid. A flexible, real-time data network would make it possible to use these data for many more control and protection applications, potentially increasing the grid's ...
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Agents controlling the electric power infrastructure
The electric power grid is evolving from a centrally controlled grid with only a handful of regulated monopolies to an open, liberalised electricity market. In addition, more and more small-scale dispersed generators are deployed in distribution nets. This puts extra stress on the power grid, in an era when electricity is one of the most important commodities for economic, industrial and everyday ...
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What is a distribution transformer?
Distribution Transformer: An Essential Component of Power Distribution Systems As you go about your daily life, you probably take for granted that electricity is readily available to power your home and business. However, there is a complex system in place that allows for the efficient distribution of electrical power, and one key component of this system is the distribution transformer. What ...
By Protrafo
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Knowing power grids and understanding complexity science
Complex networks theory has been well established as a useful framework for studying and analysing structure, dynamics and evolution of many complex systems. Infrastructural and man–made systems like power grids, gas and water networks and the internet, have been also included in this network framework, albeit sometimes ignoring the huge historical body of knowledge surrounding them. Although ...
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Prospects for nuclear energy in West Asia and North Africa
Population and economic growth in West Asia and North Africa (WANA) continue to drive upward the demand for energy services and freshwater. Currently, oil and gas are the principal fuels for electricity generation and desalination, but this is expected to change in the future. Demand expectations, high oil and gas prices, export revenue maximisation, energy supply security considerations and ...
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Off Grid Solar Power Systems Design:The Beginner’s Guide in 2018
The off-grid solar system is an array of solar power components meant to run daily operations of electrical devices in absence of electricity. A similar array of solar power is the use of grid-tie solar systems; systems that are required to run electric appliances whenever utility grid is not supplying power. The grid-tie system is connected to the utility power source and works interchangeably ...
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Effects of intentional threats to power substation control systems
Power station control and management systems represent key elements for guaranteeing the security of the power grid infrastructure. Intrinsically conceived to support the continuous provision of power in secure conditions, those systems today make intensive use of information and communication systems and are therefore exposed to related accidental and intentional cyber threats. This paper ...
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Batteries Are the Heart of Renewable Energy
US researchers have made a vital step ahead in the pursuit to amass electricity from irregular energy resources like solar energy and wind energy. A Harvard University group has turned up with a technique to cut down the expenditure of flow battery technology that is competent of storing energy on big scales within an electrical power grid. Grid-scale storage for renewable resources could be a ...
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The evolution of the topology of high-voltage electricity networks
The electricity network represents an example of an evolving complex system. The first local networks contained only a few nodes, but within several decades, they have evolved into a highly connected continental system. The growth of these networks was influenced by various factors such as economic, demographic, political and technological developments. In this paper, we analyse the growth of the ...
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The growing demand for heat-shrink tubing
Since the 1990s, we have been a leading fluoropolymer manufacturer in the industry. From FEP tubing to PTFE tubing and more, the outlook of the industry is one of immense optimism. Just this past month, a Research and Markets report stated that the global heat-shrink tubing market will reach $3.1 billion by 2027. Currently, the market accounts for approximately $1.71 billion. We believe the ...
By Fluorostore
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Harmonic and interharmonic distortion analysis in the grid-connected wind electric generator
The operation of wind turbines has an impact on the power quality at the connected electric network. The integration of wind electric generators with the power grid becomes a headache for power engineers in several aspects. Harmonic distortion is one of the most important phenomena which affect the grid performance. This paper provides an in-depth discussion on harmonic and interharmonic ...
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How big is the distributed energy opportunity for water and wastewater utilities?
Energy costs for water utilities are large, and growing Energy is a significant cost for many water utilities, and costs are growing as more energy-intensive forms of water supply, including desalination, are being used. Energy is typically the second-largest utility budget item in developed countries, after labour. In many developing countries, energy can account for 70% or even more, of annual ...
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Why the fossil-fuelled reactor fleet in France will not be affected by an evolution of the wind power capacity
Today's power electronics can confer high-performance adjustment capabilities on any technological object, including the frequency-power and voltage tuning of modern, synchronous-type wind turbines. However, this will not enable such devices to steadily produce electric power from an uncontrolled mechanical energy. Thus they cannot be considered independent generation units: the need to ...
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Adkins Energy LLC - 5.0 MW CHP Application - Case Study
Quick Facts LOCATION: Lena, Illinois MARKET SECTOR: Ethanol Plant PRIME MOVER: (1) Solar Gas Turbine FUEL: Natural Gas GENERATING CAPACITY: 5.0 MW HEAT RECOVERY EQUIPMENT: (1) Victory Heat Recovery Steam Generator with thermal capacity of 25,700 lbs/hr at 125 PSI HEAT RECOVERY APPLICATION: Building Heat, Process Heat IMPLEMENTATION COST: $3,000,000 TOTAL ENERGY AND OPERATION ...
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Evils for giant power houses
Giant Electricity Power Houses such as giant thermal power plants or giant nuclear power plants are established either by governments by collecting tax from the people or by giant private companies by collecting huge money by way of shares of the company. In either cases, money comes from the people. Giant Electricity Power Houses give rise to giant factories, centralize production and ...
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Ellen Williams: The future of energy innovation
As director of the U.S. Advanced Research Projects Agency–Energy, Ellen Williams plays a pivotal role in cultivating and guiding energy technology discovery and development in the United States. Ensia recently invited Williams to share her views on what we should watch for in the wide world of energy innovation in the months and years to come. What in your mind is the most important ...
By Ensia
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Guest Post: 2012 - The Year Renewables Became a Problem
Looking back on the energy news from 2012 there are a couple of over-riding trends. On a positive note, with significant taxpayer and/or ratepayer financial support through direct subsidies and Feed-In-Tariffs (FITs) renewable electrical generation is starting to have a major impact in several jurisdictions. On May 25 Germany set a new record for solar energy with production of 22 GW, providing ...
By 3BL Media
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Reverse DC-Coupled PV+Storage
In 2018, Dynapower deployed the first DC-DC converter in a DC-coupled PV+S (PV + storage) configuration at an existing utility-scale PV+S installation. Since then, the innovative solar-plus-storage solution has gained traction due to the ability of DC-coupled PV+S to increase PV energy capture and decrease the costs as compared to AC-coupled energy storage solutions. Recent reports from IHS ...
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Fuel cell-powered data centers
Data centers are becoming a vital component of today’s digital technology-driven world. From cloud computing to communications to finance, many industries depend on data centers. They centralize services for the storage, management, and transmission of data. Offering these services 24/7, 365 days a year requires a lot of energy. According to Data Center Knowledge, 2% of our nation’s ...
By AKCP
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