Results 1 to 10 of about 869 (176)

Transient Fault Area Location and Fault Classification for Distribution Systems Based on Wavelet Transform and Adaptive Neuro-Fuzzy Inference System (ANFIS) [PDF]

Advances in Electrical and Electronic Engineering, 2018
A novel method to locate the zone of transient faults and to classify the fault type in Power Distribution Systems using wavelet transforms and Adaptive Neuro-Fuzzy Inference Systems (ANFIS) has been developed.
Ali Khaleghi, Mahmood Oukati Sadegh, Mahdi Ghazizadeh-Ahsaee, Alireza Mehdipour Rabori   +3 more
doaj   +4 more sources

MODELO DE TRANSFORMADORES EN SATURACIÓN UTILIZANDO FUNCIONES DE CÁLCULO DE PARÁMETROS EN EMTP-RV [PDF]

Ingeniería, 2014
La representación del fenómeno de saturación de un transformador es imprescindible en los estudios de transitorios electromagnéticos, principalmente porque debe representar con exactitud la sobrexcitación del transformador durante su energización, además
Leonardo Montealegre Lobo
doaj   +3 more sources

Impact Theoretical Analysis of Resistive FCL on the Rate of Rise of Recovery Voltage Across Circuit Breaker

IET Science, Measurement & Technology
The utilization of fault current limiters (FCLs) results in a decrease in short‐circuit levels. However, as FCLs are integrated within the fault loop circuit, they may exert a significant influence on the transient recovery voltage and rate of rise of ...
Mohammad Reza Barzegar‐Bafrooei, Jamal Dehghani Ashkezari   +1 more
doaj   +2 more sources

Power Dispatching Method for a De‐Loading Operated Wind Farm Participating in Power System Frequency Regulation Considering Wake Effect

IET Renewable Power Generation
Under the guidance of the ‘dual carbon’ goals, the installed capacity of wind power continues to grow, increasing wind power penetration levels (WPPLs) and posing challenges to system frequency stability.
Taiying Zheng, Zhaoji Liu
doaj   +2 more sources

A new method for surge arrester placement in high‐voltage substations considering environmental effects

IET Science, Measurement & Technology
Conventional approaches for determining the optimal locations of surge arresters (SAs) can result in an unnecessary increase in the number of these devices in high‐voltage substations.
Faridoddin Safaei, Mohsen Niasati
doaj   +2 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

Application of the Heidler function in electromagnetic transients programs [PDF]

Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2021
The paper analyzes the possibility of using the Heidler function in programs for electromagnetic transients. The parameters of the Heidler function are calculated for various standard waveforms, where greater accuracy is shown for certain waves than with
Mrvić Jovan, Jasika Ranko, Simić Ninoslav   +2 more
doaj   +1 more source

An algorithm for fitting passive equivalent circuits for lumped parameter frequency dependent transmission line models

IET Generation, Transmission & Distribution, 2021
Accurately fitting rational functions to the frequency response of modal impedances is crucial for including frequency dependency in lumped parameter models of transmission lines.
Kiran Kumar Challa, Gurunath Gurrala, Pritam Mukherjee   +2 more
doaj   +1 more source

Modelling of Secondary Arc Using EMTP-RV [PDF]

The Transactions of The Korean Institute of Electrical Engineers, 2012
Most of faults occurred in transmission lines are single-phase to ground faults and transient faults. Single-phase auto reclosing is an appropriate scheme to maintain the system stability and restore the system effectively when those faults are occurred.
Yun-Sik Oh, Sung-Bum Kang, Hun-Chul Seo, Chul-Hwan Kim   +3 more
openaire   +1 more source

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