Results 21 to 30 of about 68,357 (185)
Energies, 2020 Protection of transformers, as one of the most expensive equipment in the power system, against lightning overvoltage impulses is a vital task. This paper, for the first time so far, investigates the effects of a filtered spark gap on the protection ...
Mahdi Pourakbari-Kasmaei +6 more
doaj +1 more source
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
Energies, 2019 A new approach to lightning transient studies including complex grounding grids is presented in this paper. The grounding system is modeled in Matlab/Simulink based on the transmission line theory.
Vegard Steinsland +3 more
doaj +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 110-123, 6 January 2023., 2023 Abstract With the interconnection of regional grids and the increasing penetration of renewable energy, the order of the power system model is getting higher and higher, which brings great challenges to the accuracy and real‐time performance of electromagnetic transient (EMT) simulation.
Qiguo Wang +5 more
wiley +1 more source
, 2022 El presente trabajo de investigación tuvo como problema general el cómo modelar la línea aérea de distribución rural para evaluar su desempeño ante descargas atmosféricas aplicado al software EMTP RV.
Catay Buitrón, Abel César
core +1 more source