Results 61 to 70 of about 2,378 (215)
IET Renewable Power Generation, 2022 Fault currents of inverter‐interfaced distributed generators (IIDGs) depend on inverter controllers. Thus, IIDGs fault currents are different than those of synchronous‐based DGs, both from the magnitude and waveshape perspectives.
Talal Elemamali Sati, Maher A. Azzouz
doaj +1 more source
IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.The paper higlights the usage of GFM WTG to enable temporary blocking of the offshore converter in MT‐HVDC systems to reduce protection requirements. It is shown, that smaller DCCB series inductances can be used. During temporary blocking the AC power transfer is interupted but is returned quickly after the converter is brought back into operation ...
Christopher Klein +3 more
wiley +1 more source
IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.This paper proposes a distance protection scheme capable of fault location based on the coordination of control and protection. By utilizing the two fault states provided by IBR control switching, accurate fault location calculation is achieved, unaffected by fault resistance. Additionally, through time‐sequenced coordination of control and protection,
Qian Xu +4 more
wiley +1 more source
Iranian Journal of Electrical and Electronic Engineering, 2015 The aim of the relay coordination is that protection systems detect and isolate the faulted part as fast and selective as possible. On the other hand, in order to reduce the fault clearing time, distance protection relays are usually equipped with pilot ...
Y. Damchi, J. Sadeh, H. Rajabi Mashhadi
doaj
Requirement of a new substation based protective relay coordination [PDF]
, 2018 L
Babazadeh, Mehrdad +2 more
core
GaN‐Based Three‐Phase Voltage and Current Sources for Power Relay Testing
IET Power Electronics, Volume 18, Issue 1, January/December 2025.This paper implements low‐cost GaN‐based three‐phase voltage and current sources to validate power protective relays. This proposal develops voltage and current generators that use three single‐phase full‐bridge converters equipped with an LC filter and an isolating transformer.
Luis Ramón Merchan‐Villalba +7 more
wiley +1 more source
IEEE AccessOptimizing the sensitivity and speed of the overcurrent protection system in the presence of distributed generation units while also ensuring the cost-effective design of the fault current limiter (FCL) represents great challenges for engineers.
Mahmoud A. Elsadd +4 more
doaj +1 more source
Implementing Enhanced Fault Detection and Classification in DC Microgrids With Savitzky‐Golay Filter
IET Renewable Power Generation, Volume 19, Issue 1, January/December 2025.This paper introduces a methodology for fault detection and classification in DC microgrids. It transforms the measured current from only one end of the protected line into a novel modal current. Then, it employs the second‐order derivative of the Savitzky‐Golay filter to introduce a novel fault detection index for discriminating the faults in a wide ...
Mehdi Jabareh Nasero +3 more
wiley +1 more source
Optimal Coordination of Directional Overcurrent Relays Using PSO-TVAC
Energy Procedia, 2015 AbstractThis paper presents an efficient variant of particle swarm optimization (PSO) algorithm named Time Varying Acceleration Coefficients (PSO-TVAC) to solve the optimal coordination of directional overcurrent relays (DOCRs) in a practical power system, considering the optimum pickup current (Ip) as discrete parameter and time dial setting (TDS) as ...
Mancer, Nabil. +4 more
openaire +1 more source
Impact of distributed PV generation on relay coordination and power quality [PDF]
, 2019 Distributed generation (DG) has gained popularity among electricity end users who are determined to contribute to a cleaner environment by conforming to green and sustainable energy sources for various daily needs. The power system impact of such trends (
Akmal, Muhammad +4 more
core +1 more source