Results 1 to 10 of about 667 (104)

Modelización de línea aérea de distribución rural para evaluación del desempeño ante descargas atmosféricas aplicado al software EMTP RV [PDF]

Prospectiva Universitaria, 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. Se utilizó el método de modelización y simulación, considerando el procedimiento secuencial: Descripción del problema, construcción de unmodelo ...
Catay Buitrón, Abel César, Catay Buitrón, Abel César   +1 more
openaire   +3 more sources

High‐Impedance Fault Detection in Distribution Networks Based on Support Vector Machine and Wavelet Transform Approach (Case Study: Markazi Province of Iran)

Energy Science & Engineering
High 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, Mohammad Reza Miveh   +1 more
doaj   +2 more sources

Evaluation of Filtered Spark Gap on the Lightning Protection of Distribution Transformers: Experimental and Simulation Study

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, Farhan Mahmood, Michal Krbal, Ludek Pelikan, Jaroslava Orságová, Petr Toman, Matti Lehtonen   +6 more
doaj   +1 more source

Impacts of Lightning-Induced Overvoltage on a Hybrid Solar PV–Battery Energy Storage System

Applied Sciences, 2021
With increased electrical energy demands projected in the future, the development of a hybrid solar photovoltaic (PV)–battery energy storage system is considered a good option. However, since such systems are normally installed outdoors and in open areas,
Nor Izzati Ahmad, Zaipatimah Ali, Mohd Zainal Abidin Ab. Kadir, Miszaina Osman, Nur Hazirah Zaini, Muhammad Hakirin Roslan   +5 more
doaj   +1 more source

Externally gapped line arresters placement effect on transmission line lightning performance including the frequency response of the grounding system

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

A review: Monitoring situational awareness of smart grid cyber‐physical systems and critical asset identification

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, Neetesh Saxena, Anurag Srivastava, Mauro Conti, Pete Burnap   +4 more
wiley   +1 more source

A review of power system resilience assessment and enhancement approaches by focusing on wind farms and wind turbines

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, Sajjad Tohidi, Saeid Ghassem Zadeh, Tohid Ghanizadeh Bolandi   +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, Chenguang Yang, Yujun Guo, Xueqin Zhang, Xiao Lei, Guoqiang Gao, Guangning Wu   +6 more
wiley   +1 more source

Full Bridge MMC Converter Optimal Design to HVDC Operational Requirements [PDF]

, 2015
This project is funded by RTE, Paris, FrancePeer ...
Jovcic, Dragan, Lin, Weixing, Nguefeu, Samuel, Saad, Hani   +3 more
core   +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