Results 11 to 20 of about 4,854,873 (396)

Adaptive Protection and Control in the Power System for Wide-Area Blackout Prevention [PDF]

open access: yesIEEE Transactions on Power Delivery, 2016
This paper presents a new approach in adaptive out-of-step (OOS) protection settings in power systems in real time. The proposed method uses extended equal area criterion (EEAC) to determine the critical clearing time and critical clearing angle of the ...
M. Ariff, B. Pal
semanticscholar   +3 more sources

Coupling characteristic analysis of power system frequency dynamic and power angle oscillation

open access: yes电力工程技术, 2023
For the analysis of the coupling characteristics of the power system frequency dynamic and power angle oscillation, the mechanism of the two-machine system under disturbances is derived in this paper, and the mechanism of the multi-machine system is ...
MA Ruicong   +5 more
doaj   +1 more source

Faulty Feeder Identification and Fault Area Localization in Resonant Grounding System Based on Wavelet Packet and Bayesian Classifier

open access: yesJournal of Modern Power Systems and Clean Energy, 2020
Accurate fault area localization is a challenging problem in resonant grounding systems (RGSs). Accordingly, this paper proposes a novel two-stage localization method for single-phase earth faults in RGSs.
Jingwen Chen   +5 more
doaj   +1 more source

EMD/HT‐based local fault detection in DC microgrid clusters

open access: yesIET Smart Grid, 2022
DC faults can create serious damages if not detected and isolated in a short time. This paper proposes a fault detection technique for DC faults to enhance the protection of DC microgrid clusters.
Navid Bayati   +5 more
doaj   +1 more source

The bubble formation characteristics of oil‐paper insulation and its influence on insulation performance

open access: yesHigh Voltage, 2023
Engineering experience shows that for transformers with long service life and serious moisture exposure, the inter‐turn paper insulation inside the winding will precipitate bubbles under the condition of electric field and conductor heating, which will ...
Yiyi Zhang   +6 more
doaj   +1 more source

Real Fault Location in a Distribution Network Using Smart Feeder Meter Data

open access: yesEnergies, 2021
Distribution networks transmit electrical energy from an upstream network to customers. Undesirable circumstances such as faults in the distribution networks can cause hazardous conditions, equipment failure, and power outages.
Hamid Mirshekali   +3 more
doaj   +1 more source

Hazard evaluation of ground potential difference within grounding grid on personal safety under impulse current

open access: yesIET Science, Measurement & Technology, 2021
Due to the impedance characteristic of conductor, the ground potential rise is different within grounding grid when impulse current is injected. When staff touches objects with different GPR at the same time, the GPD will be applied to human body ...
Chun Li   +5 more
doaj   +1 more source

Human reliability analysis in maintenance team of power transmission system protection

open access: yesProtection and Control of Modern Power Systems, 2020
The requirement for reliable electrical energy supply increases continuously because of its vital role in our lives. However, events due to various factors in the power grid can cause energy supply to be interrupted.
M. Tavakoli, M. Nafar
semanticscholar   +1 more source

Optimal Outage Management Model Considering Emergency Demand Response Programs for a Smart Distribution System

open access: yesApplied Sciences, 2020
In this paper, a novel smart outage management system considering Emergency Demand Response Programs (EDRPs) and Distributed Generations (DGs) denoted as SOMSDGsEDRPs is proposed.
Sobhan Dorahaki   +2 more
doaj   +1 more source

Extremely low frequency‐based faulty line selection of low‐resistance grounding system

open access: yesIET Generation, Transmission & Distribution, 2021
The single‐phase‐to‐ground faulty line selection methods based on the signals of the frequency above 10 Hz has a low discrimination of fault characteristic signal and characteristic signal may be covered by noise in cases of high‐resistance fault.
Qing Chen   +6 more
doaj   +1 more source

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