Results 31 to 40 of about 1,696 (209)

Analysis of Overvoltages on Power Transformer Recorded by Transient Overvoltage Monitoring System

open access: yes, 2020
In this paper, an on-line transient overvoltage monitoring system (TOMS) for power transformers is used for measurement of overvoltages on the transformer bushing tap. The focus of the paper is on the analysis of transient overvoltages caused by lightning strikes recorded at the terminals of power transformer. Several recorded overvoltages are analyzed
Murat, Ivan   +5 more
openaire   +3 more sources

Considering the Switching Strategy of the Transmitting Wind Power to Deal with the DC Blocking Fault Under the Constraint of Transient Overvoltage [PDF]

open access: yesDianli jianshe
[Objective] For the power grid with high penetration of new energy,measures such as rapid shut-off or emergency reduction of the power of new energy stations are often used to deal with DC lockout faults,but the cutting will weaken the strength of the ...
MA Qiang, YIN Chunya, QIN Yanhui, MA Xing, TANG Zhipeng
doaj   +1 more source

Protection against transient overvoltage in precision AC-DC measurement system

open access: yes, 2020
: Reduction in size and improvement of sensitive margins in modern semiconductor devices makes them increasingly susceptible to stress and subsequent damage caused by the overvoltage.
Kgakatsi, Thato E.   +3 more
core   +1 more source

Transient Overvoltage Analysis of Grid-Following VSCs during Fault Recovery

open access: yes, 2023
Current grid code has explicit requirement on the fault current injection profile of grid-following voltage-source converters (GFL-VSCs), i.e., the output reactive current of GFL-VSC needs to be proportional to voltage- magnitude deviation at the point ...
Wu, Heng; id_orcid   +2 more
core   +2 more sources

Overvoltage and insulation coordination of flexible DC distribution network with DC circuit breaker

open access: yes电力工程技术, 2023
With the continuous application and popularization of distributed energy, DC power distribution will become the mainstream form of future power distribution system.
LIU Shuhan   +5 more
doaj   +1 more source

Electromagnetic transient suppression for thyristor switch‐based auto‐passing neutral section system

open access: yesIET Power Electronics, 2023
The auto‐passing neutral section (ANS), applied in the traction substation or section post (SP), is one of the effective methods to improve the continuity of power supply, and the electromagnetic transient is the key issue impacting its application value.
Wu Liran   +3 more
doaj   +1 more source

Infinite Functional Versatility, Formidable Limits: Evaluating Gallium‐Based Liquid Metals in Rechargeable Batteries

open access: yesCarbon Energy, EarlyView.
Beyond the hype surrounding the self‐healing properties of gallium‐based liquid metals (Ga‐LMs), this perspective critically examines their functional roles in metal‐ion batteries, highlighting both their underlying merits and the often‐overlooked challenges, including non‐representative design and testing configurations, performance overestimations ...
Turly P. P. Sumanasekara   +7 more
wiley   +1 more source

Achievement of Transition Metal Chalcogenides/Oxides in Hydrogen Production by Seawater Electrolysis

open access: yesEcoEnergy, EarlyView.
Transition metal chalcogenides (TMCs)/oxides have shown great application potential in seawater splitting for hydrogen generation due to their adjustable electronic properties, abundant active sites, and excellent catalytic performance. ABSTRACT Under the impetus of global “dual carbon” goals, green hydrogen has become a key component of the future ...
Xiaohui Du, Xinyu Li, Jianna Li, Tao Sun
wiley   +1 more source

Lightning Overvoltage Protection of Step-Up Transformer Inside a Nacelle of Onshore New-Generation Wind Turbines

open access: yesEnergies, 2021
This paper presents an electromagnetic transient analysis of lightning-initiated overvoltage stresses of the step-up transformers installed inside a nacelle of onshore, multi-megawatt, new-generation wind turbines.
Petar Sarajcev, Antun Meglic, Ranko Goic
doaj   +1 more source

Laser‐Textured Field‐Engineered Interface for Robust Dry‐Processed Cathodes in Lithium‐Ion Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Laser‐patterned dry electrodes applied to current collectors could serve as a promising alternative to the limitations of conventional dry electrodes. Laser technology provides a fast and simple method to enhance the surface roughness of current collectors, improving the adhesion at the electrode–current collector interface.
Chaerin Jung   +8 more
wiley   +1 more source

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