Results 11 to 20 of about 656 (100)
Energy Science & EngineeringHigh impedance faults (HIFs) can lead to crucial damage to the utility grid, such as the risk of fire in material assets, electricity supply interruptions, and long service restoration times.
Mohammad Sadegh Attar +1 more
doaj +2 more sources
IET Generation, Transmission &Distribution, Volume 17, Issue 22, Page 4975-4990, November 2023., 2023 • The externally gapped line arrester (EGLA) performance, which incorporates the frequency grounding system, has been explored as a new approach. • The effect of port length, diameter, and grounding electrode shape on the grounding system impedance has been modelled.
Masume Khodsuz
wiley +1 more source
IET Cyber-Physical Systems: Theory &Applications, Volume 8, Issue 3, Page 160-185, September 2023., 2023 This study presents the necessary background to attain the appropriate approach for monitoring critical assets in cyber‐physical systems' situational awareness. Additionally, the paper presents a broad survey supported by an in‐depth review of previous works in three important aspects.
Yazeed Alrowaili +4 more
wiley +1 more source
IET Renewable Power Generation, Volume 17, Issue 9, Page 2391-2410, 6 July 2023., 2023 Here, assessment and enhancement approaches of power system resilience by focusing on the role of wind farms and wind turbines are reviewed. To do so, a comprehensive review of the related metrics, assessment methods, and enhancement solutions is presented. The existing works have studied the resilience of power system from the perspectives of planning
Seyyed Alireza Modaberi +3 more
wiley +1 more source
Research on the arcing horn with active arc extinguishing function for HVDC grounding electrode line
IET Generation, Transmission &Distribution, Volume 17, Issue 11, Page 2634-2643, June 2023., 2023 In this work, an active arc extinguishing method based on variable resistance for arcing horn was proposed. To design the arcing horn within active arc extinguishing function, the grounding electrode line and arcing horn model were established based on a ±800kV UHVDC transmission system. The electrical characteristics of the arcing horn were calculated
Yicen Liu +6 more
wiley +1 more source
Residual charge effects on partial discharges' response to varying sub‐kHz voltage frequencies
High Voltage, Volume 8, Issue 3, Page 622-629, June 2023., 2023 Abstract Partial discharges (PD) are the ‘cancer’ of electrical insulation. Insulation design and mitigation of PD‐induced degradation should be based on good knowledge of PD phenomena. In that regard, a significant body of knowledge has been built up from concerted research across the world in past decades and on various aspects of PD phenomena under ...
Cuthbert Nyamupangedengu, Tapiwa Venge
wiley +1 more source
IET Generation, Transmission &Distribution, Volume 17, Issue 1, Page 161-180, January 2023., 2023 Abstract Superimposed current components contain effective information, which can be employed to enhance the dependability and security of busbar protection relays. This study aims to investigate the use of the slope degree of grey incidence analysis model to design a methodology for busbar protection.
M. Joband, S. Homayounifar, M. Sarlak
wiley +1 more source
IET Renewable Power Generation, Volume 17, Issue 1, Page 83-94, 6 January 2023., 2023 Abstract Power systems are becoming more and more complicated. Traditional simulation tools such as transient stability programs and electromagnetic transients (EMT) programs are unable to meet the accuracy or efficiency requirements. This paper proposes a shifted frequency‐based EMT (SFEMT) simulation in the symmetrical component‐domain (abbreviated ...
Shilin Gao +4 more
wiley +1 more source
Reduced DC circuit breaker requirement on mixed converter HVDC networks [PDF]
, 2015 © 2015 IEEE.Recently proposed meshed HVDC networks include both converters and DC circuit breakers, and the fault currents experienced and therefore the capacity requirement of circuit breakers are dependent on the topology of converters used on the ...
Chaffey, G, Green, TC
core +1 more source
Evaluating the High Frequency Behavior of the Modified Grounding Scheme in Wind Farms
Applied Sciences, 2017 Wind generators are exposed to numerous destructive forces such as lightning and are therefore vulnerable to these phenomena. To evaluate the transient behavior of a wind power plant during direct and indirect strikes, modeling of all relevant components
Seyede Fatemeh Hajeforosh +3 more
doaj +1 more source