Results 51 to 60 of about 86,543 (172)

Reduced DC circuit breaker requirement on mixed converter HVDC networks [PDF]

open access: yes, 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

Consideraciones Conceptuales sobre Análisis de Estabilidad Transitoria en el Ajuste del Tiempo de Recierre Monofásico de la Línea de Transmisión San Rafael - El Inga de 500 kV

open access: yesRevista Técnica Energía, 2018
Este trabajo analiza las implicaciones de varias consideraciones conceptuales, tales como características de modelación e integración, tipo de modelación de la máquina sincrónica y efecto de la modelación de la saturación, en los resultados del análisis
L.M. Dután, J.C. Cepeda
doaj   +1 more source

Generalized Voltage-based State-Space Modelling of Modular Multilevel Converters with Constant Equilibrium in Steady-State [PDF]

open access: yes, 2017
This paper demonstrates that the sum and difference of the upper and lower arm voltages are suitable variables for deriving a generalized state-space model of an MMC which settles at a constant equilibrium in steady-state operation, while including the ...
Bergna-Diaz, Gilbert   +4 more
core   +3 more sources

Study on Fault Mechanism of Lightning Flashover Based on EMTP - RV in Wind Farm

open access: yesJournal of Physics: Conference Series, 2019
The particularity of lightning flashover failure of wind farm is analyzed, and it is pointed out that the formation mechanism of lightning overvoltage in wind farm collector system is different from that of power system distribution network.
Shi Zhang   +7 more
semanticscholar   +1 more source

Monte-Carlo-based simulation and investigation of 230 kV transmission lines outage due to lightning

open access: yesHigh Voltage, 2019
Here, using the probabilistic evaluation based on the Monte Carlo method, back-flashover rate and shielding failure flashover rate of 230 kV overhead transmission lines in the western regions of Iran are evaluated.
Ehsan Karami   +3 more
doaj   +1 more source

Real-Time Digital Simulators: A Comprehensive Study on System Overview, Application, and Importance [PDF]

open access: yes, 2017
The multifarious improvements in computational and simulation tools have brought tremendous progress in the field of designing, testing and analyzing technologies.
Bayne, Stephen B.   +3 more
core   +1 more source

Selection and coordination of surge arresters for switching transient mitigation in photovoltaic power plants [PDF]

open access: yes, 2017
: Photovoltaic energy generation has become a popular renewable alternative to conventional energy generation that utilise fossil fuels. However, given the diversity and complexity of these PV plants, it is imperative that such plant equipment be ...
Bokoro, P.   +3 more
core  

Analysis of transient overvoltages in EV charging stations due to direct lightning strikes

open access: yesIET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
This research investigates the impact of lightning on electric vehicle charging stations (EVCSs), focusing on the critical role of grounding systems. By simulating various lightning strike scenarios, we examine the influence of factors such as grounding configuration, cable shielding, and lightning current characteristics on the induced overvoltages ...
Ahmad Moradi, Asghar Akbari Foroud
wiley   +1 more source

Simulink model of transformer differential protection using phase angle difference based algorithm [PDF]

open access: yes, 2020
An application of phase-angle-difference based algorithm with percentage differential relays is presented in this paper. In the situation where the transformer differential relay is under magnetizing inrush current, the algorithm will be utilized to ...
Iqteit, Nassim A., Yahya, Khalid
core   +3 more sources

Performance Evaluation of Surge Arrester Counters in Energy Transmission Lines During Switching: Simulation and Practical Results

open access: yesIET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
This study evaluates surge arrester performance in mitigating transient overvoltages during 400 kV transmission line switching in Iran, using EMTP‐RV software and statistical switching. Simulation results show that modelling corona effects reduces the surge arrester counter operation considerably, aligning with practical observations.
Javad Modarresi   +2 more
wiley   +1 more source

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