Results 31 to 40 of about 19,321 (267)

On the Development of Overcurrent Relay Optimization Problem for Active Distribution Networks

open access: yesEnergies, 2022
The goal of this review paper will be to address complex optimization functions in the area of overcurrent relay optimization, to inspect and valorize their objectives and to critically examine their application in real distribution networks.
Rene Prenc   +3 more
doaj   +1 more source

Reliability analysis of distribution systems with photovoltaic generation using a power flow simulator and a parallel Monte Carlo approach [PDF]

open access: yes, 2016
This paper presents a Monte Carlo approach for reliability assessment of distribution systems with distributed generation using parallel computing. The calculations are carried out with a royalty-free power flow simulator, OpenDSS (Open Distribution ...
Guerra Sánchez, Luis Gerardo   +1 more
core   +2 more sources

DC boost converter with buck buffer

open access: yesJournal of Measurement Science and Instrumentation, 2021
For a conventional high-power active power factor correction(APFC) boost converter, its output capacitor needs to be precharged, which means that two power switches of the main circuit and the control circuit are needed to be respectively turned on and ...
REN Xiang, WANG Yaoqi, WANG Xiaopeng
doaj  

Optimizing the roles of unit and non-unit protection methods within DC microgrids [PDF]

open access: yes, 2012
The characteristic behavior of physically compact, multiterminal dc networks under electrical fault conditions can produce demanding protection requirements.
Burt, Graeme   +4 more
core   +1 more source

Evaluating the Effect of the Communication Link of the Relays on the Operation Time of the Protection System

open access: yesEnergies, 2023
In case of an error in the power system, it is the duty of the protection relays to isolate the faulty part from the rest of the system as soon as possible.
Aliakbar Azari   +4 more
doaj   +1 more source

Overcurrent Protection for Gyrotrons in EAST ECRH System

open access: yes, 2017
In this paper, an overcurrent protection system is designed to ensure the safety of the gyrotrons in the EAST ECRH system. Two overcurrent protection systems were established, a fast one and a slow one.
Feng, Jianqiang   +6 more
core   +1 more source

Power quality disturbances assessment during unintentional islanding scenarios. A contribution to voltage sag studies [PDF]

open access: yes, 2019
This paper presents a novel voltage sag topology that occurs during an unintentional islanding operation (IO) within a distribution network (DN) due to large induction motors (IMs).
Bosch Tous, Ricardo   +2 more
core   +2 more sources

Harmonic Effects on Electromechanical Overcurrent Relays [PDF]

open access: yesDoğuş Üniversitesi Dergisi, 2005
Elektromekanik asiri akim koruma roleleri sinusoidal akim altinda calismak uzere tasarlanmistir. Bu rolelerin harmonikli akimda calismalari guvenilir degildir. Literaturde harmonikler ve rolelerle ilgili pek cok teorik calisma bulunmaktadir. Bu makalede, harmoniklerin elektromekanik ters zamanli asiri akim rolesinin (TZAAR) calismasina etkileri ...
Dalcı, K. Burak   +2 more
openaire   +3 more sources

Optimal Coordination of Directional Overcurrent Relays Using PSO-TVAC Considering Series Compensation

open access: yesAdvances in Electrical and Electronic Engineering, 2015
The integration of system compensation such as Series Compensator (SC) into the transmission line makes the coordination of directional overcurrent in a practical power system important and complex.
Nabil Mancer   +2 more
doaj   +1 more source

Superconducting fault current limiter application in a power-dense marine electrical system [PDF]

open access: yes, 2011
Power-dense, low-voltage marine electrical systems have the potential for extremely high fault currents. Superconducting fault current limiters (SFCLs) have been of interest for many years and offer an effective method for reducing fault currents.
Blair, Steven Macpherson   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy