Results 91 to 100 of about 3,156,360 (214)

Adaptive Single Phase Auto-Reclosing Using Voltage Magnitude Pattern

, 2020
This paper presents a novel adaptive single phase auto-reclosing (ASPAR) scheme based on the first derivation of local voltage magnitude (VM) of the faulted phase for determination of dead time of transient faults. The algorithm is fast and uses low-frequency sampling and adaptive threshold value (ATV).
Baayeh, Arman Ghaderi, Jamali, Sadegh
openaire   +1 more source

Open research issues on multi-models for complex technological systems [PDF]

, 2014
-We are going to report here about state of the art works on multi-models for complex technological systems both from the theoretical and practical point of view. A variety of algorithmic approaches (k-mean, dss, etc.) and applicative domains (wind farms,
Ciufudean, C., NERI, FILIPPO
core  

Quasi-single phase permanent fault identification method and reclosing strategy based on multi-level confidence rules

International Journal of Electrical Power & Energy Systems
As global temperatures rise, the frequency of lightning increases, making lightning one of the principal threats to power-system security. Field incidents indicate that, within the automatic reclosing time window, multiple-stroke lightning can exhibit ...
Hongchun Shu, Baisong Liu, Weijie Lou, Yutao Tang, Haoming Liu, Yiming Han, Yue Dai, Ying Cao   +7 more
doaj   +1 more source

Performance of loss-of-mains detection in multi-generator power islands [PDF]

, 2016
This paper presents an investigation of the impact of multi-generator power islands on the performance of the most-commonly used anti-islanding protection method, Rate of Change of Frequency (ROCOF).
Booth, Campbell, Dysko, Adam, Tzelepis, Dimitrios   +2 more
core  

Demonstration of visualization techniques for the control room engineer in 2030.:ELECTRA Deliverable D8.1. WP8: Future Control Room Functionality [PDF]

, 2017
Deliverable 8.1 reports results on analytics and visualizations of real time flexibility in support of voltage and frequency control in 2030+ power system.
Catterson, Victoria, Chen, Minjiang, Croker, Julian, Evenblij , Berend, Heussen, Kai, Marinelli, Mattia, Merino-Fernández, Julia, Pertl, Michael, Prostejovsky, Alexander, Rezkalla, Michel M.N., Riaño, Sandra, Schwalbe , Roman, Strasser, Thomas   +12 more
core  

A novel thyristor-based hybrid DC circuit breaker with the ability to identify the type and location of the fault before reclosing the MMC-HVDC grid

International Journal of Electrical Power & Energy Systems
Although HVDC grids offer significant advantages in the widespread integration of renewable sources and the transmission of their generated power to distant areas, distrust remains regarding their performance under fault conditions.
Mojtaba Roshani Diz, Behrooz Vahidi, Hasan Rastegar   +2 more
doaj   +1 more source

A Communication-Free Cooperative Fault Recovery Control Method for DNs Based on Staged Active Power Injection of ES

Energies
To address the reclosing failures in the distribution networks (DNs) with high penetration of distributed energy resources (DERs), this paper proposes a communication-free cooperative fault recovery control method based on staged active power injection ...
Bin Yang, Ning Wei, Yuhang Guo, Jince Ge, Liyuan Zhao   +4 more
doaj   +1 more source

TRANSIENT STABILITY IMPROVEMENT OF EHV POWER TRANSMISSIONS BY ADAPTIVE SINGLE-POLE RECLOSING [PDF]

, 1985
Some special aspects of the stability properties of EHV power transmissions are pointed out in the introduction, followed by a more detailed analysis of the impact of single-pole short circuits and automatic reclosing.
Rácz, László
core   +1 more source

Self-Adaptive Autoreclosing Scheme usingI Artificial Neural Network and Taguchi's Methodology in Extra High Voltage Transmission Systems [PDF]

, 2009
Conventional automatic reclosures blindly operate for permanent, semi-permanent or transient faults on an overhead line without any discrimination after allowing some estimated time delay.
Desta, Zahlay Fitiwi
core   +1 more source

A novel thyristor‐based hybrid DC circuit breaker with short arcing capability

High Voltage
Multi‐terminal flexible high‐voltage direct current (HVDC) transmission and DC grid technology are developing rapidly. The hybrid DC circuit breaker (HCB) has broad application prospects in the field of HVDC transmission and DC power grid.
Guanlong Jia, Yuchen Yuan, Hongjiang Guo, Xiaoxue Wang, Feng Niu   +4 more
doaj   +1 more source