Results 81 to 90 of about 108,225 (350)

Evaluating Fault Dynamics and Transient Responses in Extra-High-Voltage Transmission Networks

open access: yesJournal of Electrical and Computer Engineering
Transient overvoltage and overcurrent in extra-high-voltage networks can have a significant impact on system design and operation. This work investigates various types of faults in the high-voltage transmission network of practical power system, 400 kV ...
Mohammed El-Shahat, Khaled Alawasa
doaj   +1 more source

Fault Detection and Classification of Power Plant Using Neural Networks

open access: yesTikrit Journal of Engineering Sciences
This study focuses on the root causes of power station problems that result in system shutdown. A power plant may experience many types of faults, some of which include, for example, line-to-line, double-line-to-ground, and single-line-to-ground ...
Rawaa J. Hussein   +2 more
doaj   +1 more source

Very long distance connection of gigawatt size offshore wind farms: extra high-voltage ac versus high-voltage dc cost comparison [PDF]

open access: yes, 2016
This study presents a cost comparison between commercially available high-voltage DC (HVDC) and extra high-voltage AC shore connection (±320 kV voltage source converter and 420 kV-50 Hz single-core and three-core cables), for a 1 GW offshore wind farm ...
LAURIA, Stefano   +3 more
core   +1 more source

Power Transmission Line Fault Detection and Classification

open access: yesKaradeniz Fen Bilimleri Dergisi
It is very important to find short circuit faults of power transmission lines (PTL) quickly and efficiently. Most methods in the literature use classification algorithms for fault detection, but their use in real-time applications increases fault detection time.
openaire   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

open access: yesAdvanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad   +6 more
wiley   +1 more source

Diverse, remote and innovative - Prospects for a globally unique electricity network and market in Western Australia [PDF]

open access: yes, 2010
WA’s electricity industry supply infrastructure comprises the South West Inter-connected System (SWIS), the North West Interconnected System (NWIS) and 29 regional non-interconnected power systems 1.
McHenry, M.P.
core   +4 more sources

Lightning location system supervising Swedish power transmission network [PDF]

open access: yes
For electric utilities, the ability to prevent or minimize lightning damage on personnel and power systems is of great importance. Therefore, the Swedish State Power Board, has been using data since 1983 from a nationwide lightning location system (LLS ...
Melin, Stefan A.
core   +1 more source

Recent blackouts in US and continental Europe: is liberalisation to blame? [PDF]

open access: yes, 2004
The paper starts with a detailed technical overview of recent blackouts in the US, Sweden/Denmark and Italy in order to analyse common threads and lessons to be learnt.
Bialek, Janusz
core   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu   +5 more
wiley   +1 more source

Analysis and Performance Evaluation of CLCC Applications in Key Power Transmission Channels

open access: yesEnergies
The YZ-ZJ DC transmission project addresses significant power transmission challenges in a specific region’s power grid, which faces unique pressures due to overlapping “growth” and “transition” periods in energy demand.
Kang Liu, Baohong Li, Qin Jiang
doaj   +1 more source

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