Results 41 to 50 of about 86,543 (172)

THE EFFECTS OF CABLE CHARACTERISTICS ON MAXIMUM OVERVOLTAGE IN COMBINED OVERHEAD/CABLE LINES PROTECTED BY SURGE ARRESTERS

open access: yesInternational Islamic University Malaysia Engineering Journal, 2018
 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

Coordinated Power Reserve Control of Wind Farm for Frequency Regulation

open access: yesIEEE Access, 2023
With a higher wind power penetration level, the power system is facing more challenges in the aspects of active power balance and system frequency regulation.
Wei Chen   +4 more
doaj   +1 more source

Modelación y Validación en ATP de los Cables Subterráneo y Submarino del Sistema de Subtransmisión Baltra - Santa Cruz

open access: yesRevista Técnica Energía, 2017
En este trabajo, basados en el estado del arte, se presentan los criterios usados para la modelación y validación de los cables tripolares subterráneo y submarino del sistema de subtransmisión Baltra– Santa Cruz. Para modelar los cables en rutinas Cable
L. Dután
doaj   +1 more source

A relaxation scheme to combine Phasor-Mode and Electromagnetic Transients Simulations [PDF]

open access: yes, 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

Development of a Leader-End Reclosing Algorithm Considering Turbine-Generator Shaft Torque

open access: yesEnergies, 2017
High-speed auto-reclosing is used in power system protection schemes to ensure the stability and reliability of the transmission system; leader-follower auto-reclosing is one scheme type that is widely used.
Gyu-Jung Cho   +6 more
doaj   +1 more source

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

open access: yesApplied 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   +5 more
doaj   +1 more source

Co-Simulation of Electromagnetic Transients and Phasor Models: A Relaxation Approach [PDF]

open access: yes, 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

Determination of Cumulative Distribution Function of the Crest Value of the Lightning Current Circulating Through Line Surge Arresters [PDF]

open access: yes, 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

基于拓展传输线理论的高压交流电缆输入阻抗和金属护套电压计算分析 [PDF]

open access: yes全球能源互联网
基于电缆外部精确电磁场分析方法,提出了一种拓展传输线理论,能够计及广义大地参数和电磁暂态仿真的影响计算电缆输入阻抗。采用电磁暂态仿真程序EMTP-RV,利用拓展传输线理论对典型高压交流电缆开展输入阻抗和金属护套电压特性研究,研究当合闸于空载电缆时的金属护套暂态电压特性;通过对正序激励下的电缆输入阻抗模值-频率响应进行研究,分析由三相金属护套交叉互联产生的多种传播模态。采用拓展传输线理论计算的结果与使用基于矩量法的改进数值电磁场分析方法(method of moments-surface ...
孙连明, 杨成, 薛浩岩, 富晓鹏
doaj   +1 more source

Development of an Experimental Scaled-Down Frequency Dependent Transmission Line Model

open access: yesIEEE Access, 2021
The penetration of power electronic based equipment in the power grid has increased the co-occurrence of electromechanical and electromagnetic transients.
Kiran Kumar Challa, Gurunath Gurrala
doaj   +1 more source

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