Results 71 to 80 of about 2,477 (219)
Relay protection for lines being sleet-melted by the short-circuit method [PDF]
, 1956 "July 20, 1956.""Reprinted from Transactions of the American Institute of Electrical Engineers, vol. 74, December 1955.""Sleet formation on transmission lines was recognized as a serious operating problem as early as 1916 and shortly thereafter methods ...
Hogan, J.C., Pebler, C.G.
core
Challenges, advances and future directions in protection of hybrid AC/DC microgrids [PDF]
, 2017 Hybrid microgrids which consist of AC and DC subgrids interconnected by power electronic interfaces have attracted much attention in recent years. They not only can integrate the main benefits of both AC and DC configurations, but also can reduce the ...
Dong, Xinzhou +3 more
core +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
Requirement of a new substation based protective relay coordination [PDF]
, 2018 L
Babazadeh, Mehrdad +2 more
core
An adaptive overcurrent protection scheme for distribution networks [PDF]
, 2015 Distribution networks are evolving toward the vision of smart grids, with increasing penetration of distributed generation (DG), introduction of active network management (ANM), and potentially islanded modes of operation.
Booth, C., Coffele, F., Dyśko, A.
core +1 more source
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
Ain Shams Engineering JournalOptimal coordination of overcurrent relays has become a major challenge in power distribution systems due to the increasing participation of distributed generation (DG) and electric vehicle (EV) charging stations, especially vehicle-to-grid (V2G ...
Wael Abdelfattah +4 more
doaj +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
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
International Transactions on Electrical Energy SystemsThe entry of distributed generation causes the network to become complicated, and as a result, the protection coordination between the network equipment is lost.
Hossein Mohammadi Panah +2 more
doaj +1 more source