power distribution network Articles
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Project - Rural electrification using renewable energy solutions in the region of Sava
CLIENT Agence de Développement de l’Electrification Rurale (ADER) LOCATION Region of Sava Madagascar DATE 2017 - 2021 ASSIGNMENTS Technical assistance to the project management unit (“UGP”) Checking of the studies performed Detailed studies of power distribution networks Updating of calls for tender Assistance with the contract award process Contract ...
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Public policy and the failure of national infrastructures
On the 14 August 2003, a complex combination of immediate events and longer term vulnerabilities led to a domino effect in which 50 million people had their power supplies interrupted. Consequent losses were between $5–$10 billion. It is, therefore, one of the most serious disruptions to a national power distribution network. The causes included technical issues to do with network capacity ...
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Optimal allocation and sizing of DG and shunt capacitors using differential evolutionary algorithm
In the last few years, a number of factors have led to an increased interest in distributed generation (DG) scheme because placement of DG is the most effective method in reducing the power loss of the distribution networks to serve remote loads. Placement of shunt capacitors improves voltage profile but unable to serve remote load as it can provide only reactive power. So, combination of both ...
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Power quality issues and power electronics
Harmonics in the distribution network have become an area of keen interest for utilities, power consumers and academic researchers due to its potentially disruptive impact on economy. This interest has lead to the development of a large number of standards that contain the problems as well as technological solutions to meet the specifications of the standards. In this paper, we discuss the ...
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Reactive power compensation of wind energy conversion system by using Unified Power Flow Controller
Voltage control and reactive power compensation in a distribution network with embedded Wind Energy Conversion System (WECS) represents the main concern of this paper. The WECS is a fixed speed/constant frequency system that is equipped with an induction generator driven by an unregulated wind turbine. The problem is viewed from short-term (10 seconds), mid-term (10 minutes) and long-term (48 ...
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Distributed generation planning in deregulated power market - a bibliographical survey
As a result of deregulation, increased use of dispersed generation requires revisiting in management and operation of distribution network. Selection of optimal network topology incorporated with the optimal use of dispersed generation and retail market including real and reactive power. Minimisation of related costs and satisfying technical and physical constraints is also the key issue to ...
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Investigation into the compatibility and effectiveness of a new mathematical online voltage sag index
A new mathematical index is investigated in this paper which improves the power quality of a system through providing a tool for online voltage sag mitigation. The index is developed mathematically and applied on transmission and distribution networks. Furthermore, it is verified for its compatibility through the use of a tap changing transformer scheme. Two loading variation scenarios, ...
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How digitalizing your critical power distribution delivers a fast and massive ROI
In the previous two posts in this series, we’ve looked at the hidden risks that make managing critical power facilities so challenging. We’ve also seen how digitalizing electrical power distribution networks trends mean you no longer have to ‘work blind.’ Connected smart devices sharing data with cloud or facility-based software and mobile apps help shine a bright light on ...
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A novel FACTS dynamic stabilisation scheme for stand-alone tidal energy conversion systems
Renewable abundant ocean kinetic energy has become increasingly popular as a consequence of strong ecological viable concerns and economical energy solutions in remote island communities. However, the integration of dispersed renewable tidal energy will pose a greater challenge to the power quality of distribution networks in remote areas due to fluctuation of the tidal stream velocity. The paper ...
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A complex network approach for identifying vulnerabilities of the medium and low voltage grid
The vision behind the smart grid promises, among other things, to bring more attention to the lower layers of the distribution network where users are gradually transforming into prosumers. Independent of this transformation, users will expect the same (or higher) level of reliability of the infrastructure. In this paper, we consider physical samples from the Dutch medium and low voltage network ...
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Captive power plant efficiency for Africa
Power distribution networks across Africa are notoriously unreliable. Frequent power interruptions can be enormously costly for many of the continent’s factories. Not only do power outages disrupt production batches, they can also damage or reduce the life of important plant components such as kilns. This too has a knock-on effect on wider the country’s gross domestic product – ...
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An introduction to reactive power compensation for wind farms
The paper summarises the refereed contributions of seven articles reviewed for publication in the IJETP – Special Issue on "Reactive compensation for wind farms". The main goal of the special issue is to provide a forum to exchange information on the reactive power compensation requirements for wind farms and introducing possible price mechanisms for today's deregulated power industry. ...
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How can digital twins accelerate EV battery plants’ design and build?
EV battery demand is predicted to increase nearly 15-fold from 2020 to 2030 The EV market is skyrocketing. There’s a major EV production bottleneck, though - there aren’t enough batteries to meet current demand. The problem will likely be even more challenging in the future because BNEF predicts battery demand will rise 15-fold from 2020 to 2030 in the Economic Transition Scenario. ...
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6.6kw Solar System: Panels, Pricing, Power Output
Comprehensive Guide to 6.6kW Solar Systems Welcome to our comprehensive guide to 6.6kW solar systems! In this detailed review, we will delve into all aspects of 6.6kW solar systems, including panels, pricing, power output, and their suitability for various households. This guide will equip you with all the information you need to make an informed decision about installing a 6.6kW solar system for ...
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How to Improve Power Reliability for Semiconductor Fabs
Semiconductor fabs use up to 100 megawatt-hours of power each and every hour Semiconductor manufacturing facilities require a massive amount of energy to support their facilities and manufacturing processes. Large fabs can use as much as 100 megawatt-hours of power each hour – more than many oil refineries and automotive plants. Energy use will continue to increase with higher production ...
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Power Quality: Top Protection
The Power Quality problems of an electrical distribution network are often generated locally within the structures and can depend on various situations, such as, for example, construction works, switching on high loads, faulty distribution components and particular basic electrical disturbances. Furthermore, external causes such as atmospheric events (hurricanes, lightning, snow, ice and ...
By IREM SpA
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Controlling the power balance in an 'empty network'
This paper presents the concept of an 'empty network' and shows how the power balance can be controlled in such a system. In this study, an 'empty network' is defined as a transmission system in which no rotating mass is present. All generators are connected to distributed systems and 'hidden' behind power electronic interfaces. One generator creates a neat 50 Hz voltage that serves as a ...
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Comparative performance of BESS and SMES in distribution network to improve power quality
The FACTS devices, like STATCOM, are becoming a part of the modern power system to improve the power system operation and power quality problems. Integrating the battery energy storage system (BESS)/superconducting magnetic energy storage (SMES) across the dc bus of the STATCOM can provide effective modulation of the real and reactive power. The dynamics of each of these differ because of their ...
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Stability of a model of power microgeneration network using the Kuramoto model
Most of critical infrastructures (CIs) depend on the power system. The predictable onset of a microgeneration paradigm (many dispersed small generators of medium-low power) will considerably decrease network stability and thus increase risk of failures and other's infrastructures dependence. In order to study the stability of synchronisation in a power microgeneration scenario, we derive the ...
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Context–independent centrality measures underestimate the vulnerability of power grids
Power grids vulnerability is a key issue in society. A component failure may trigger cascades of failures across the grid and lead to a large blackout. Within complex network analysis, structural vulnerabilities of power grids have been studied mostly using purely topological approaches, which assumes that flow of power is dictated by shortest paths. However, this fails to capture the real flow ...
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