Results 11 to 20 of about 667 (104)
A relaxation scheme to combine Phasor-Mode and Electromagnetic Transients Simulations [PDF]
, 2014 This paper deals with a new scheme for coupling phasor-mode and electromagnetic transients simulations. In each simulation, an iteratively updated linear equivalent is used to represent the effect of the subsystem treated by the other simulation.
Aristidou, P +3 more
core +2 more sources
Determination of Cumulative Distribution Function of the Crest Value of the Lightning Current Circulating Through Line Surge Arresters [PDF]
, 2020 For the selection and design of line surge arresters (LSA), it is essential to know the characteristics of the lightning current circulating through LSA.
Alain Xémard +2 more
core +2 more sources
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
International Islamic University Malaysia Engineering Journal, 2018 Â This paper presents the calculation of maximum lightning overvoltage for a transmission system consisting of overhead lines in combination with an underground power cable.
Reza Alizadeh, Mohammad Mirzaie
doaj +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
Co-Simulation of Electromagnetic Transients and Phasor Models: A Relaxation Approach [PDF]
, 2016 Co-simulation opens new opportunities to combine mature electromagnetic transients (EMT) and phasor-mode (PM) solvers, and takes advantage of their respective high accuracy and execution speed. In this paper, a relaxation approach is presented, iterating
Aristidou, P +3 more
core +2 more sources
Modeling of conductors catenary in power lines: effects on the surge propagation due to direct and indirect lightning [PDF]
, 2023 In this article, the effects of the variable height in overhead power lines are investigated with reference to the surges produced by direct and indirect lightning events.
Andreotti A. +4 more
core +1 more source
Monte-Carlo-based simulation and investigation of 230 kV transmission lines outage due to lightning
High 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
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