Results 11 to 20 of about 851,029 (275)
Optimal Overcurrent Relay Coordination in Distribution Networks
2021 56th International Universities Power Engineering Conference (UPEC), 2021 Over-current relay coordination plays a critical role for effective protection of networks since primary protection is based on over-current detection in distribution systems. Thus, optimal relay coordination must be ensured between relays in faulted condition, providing selectivity and fast operation.
Atsever, Mert Bekir +2 more
openaire +3 more sources
Radio resource allocation in relay based OFDMA cellular networks [PDF]
, 2010 PhDAdding relay stations (RS) between the base station (BS) and the mobile stations (MS) in a cellular system can extend network coverage, overcome multi-path fading and increase the capacity of the system.
Xiao, Lin
core +4 more sources
Coordination of adaptive distance protection in transmission and wind farm collector lines under resistive fault conditions [PDF]
International Journal of Industrial Electronics, Control and Optimization, 2020 Distance relays calculate the path impedance between the fault point and the relay location by sampling the voltage and current at the relay location. By using the ratio of the impedance estimated by the relay to the impedance of the line where the relay
Jamshid Barati +2 more
doaj +1 more source
e-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023 The optimum setting of directional overcurrent relays (DOCRs) is required to avoid miscoordination and avail fast response. To fulfill these requirements, it is required to prefer optimization techniques and modifications in objective functions (OF ...
Shanker D. Godwal +4 more
doaj +1 more source
An Adaptive Centralized Protection and Relay Coordination Algorithm for Microgrid
Energies, 2023 To meet the increased customer demands, microgrid evolved. The structure of microgrid changes dynamically due to the intermittent nature of renewable-based generation, status of the distributed generator and opening of breakers for fault/maintenance ...
Regin Bose Kannaian +2 more
doaj +1 more source
, 2009 PhDWhen this research was started, TD-SCDMA (Time Division Synchronous Code Division Multiple Access) was still in the research/ development phase, but now, at the time of writing this thesis, it is in commercial use in 10 large cities in China ...
Yan, Sun
core +4 more sources
Robust transceiver design for MIMO relay systems with tomlinson harashima precoding [PDF]
, 2012 In this paper we consider a robust transceiver design for two hop non-regenerative multiple-input multiple-output (MIMO) relay networks with imperfect channel state information (CSI).
Weiss, Stephan +5 more
core +4 more sources
A pH-Switchable Cerium Single-Atom Enzyme for Peri-Implantitis Therapy via JAK-STAT Signaling Axis-Mediated Macrophage Reprogramming. [PDF]
Adv Sci (Weinh)A pH‐switchable cerium single‐atom enzyme is developed for stage‐specific peri‐implantitis therapy. Acidic conditions trigger antibacterial peroxidase‐like activity, whereas neutral conditions activate an antioxidant superoxide dismutase ‐ and catalase ‐like enzymatic relay. This microenvironment‐adaptive catalytic strategy suppresses the IL‐6/JAK‐STAT
Xia X +10 more
europepmc +2 more sources
Coordination analysis of protection relay settings utilizing particle swarm optimization method [PDF]
, 2022 Cempaka Substation becomes one of the existing electricity distribution systems in South Kalimantan. As a transmission line, a reliable protection system is required having s proper relay coordination, thus indicating thereby optimizing the electricity ...
Pakaya, Ilham +2 more
core +1 more source
Coordinated Direct and Relay Transmission With Linear Non-Regenerative Relay Beamforming [PDF]
IEEE Signal Processing Letters, 2012 Joint processing of multiple communication flows in wireless systems has given rise to a number of novel transmission techniques, notably the two-way relaying, but also more general traffic scenarios, such as coordinated direct and relay (CDR) transmissions.
Fan Sun +3 more
openaire +3 more sources