Results 31 to 40 of about 851,029 (275)
Application of evolutionary algorithms for optimal directional overcurrent relay coordination [PDF]
, 2014 Includes bibliographical references.Relay coordination is necessary to ensure that while protection relays operate as fast as possible, they are also able to isolate only the faulted parts of the system from the network, ensuring that a power system ...
Stenane, Ndabeni Moses
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IEEE Access, 2022 Distribution systems continue to grow and becoming more complex with increasing operational challenges such as protection miscoordination. Initially, conventional methods were favoured to solve overcurrent relay coordination problems; however, the ...
Sethembiso Nonjabulo Langazane +1 more
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Energy Reports, 2021 The protection system has a vital role in subsystems of the power network including the generation, transmission and distribution system. This system combines several types of protection relays including directional over current relay, differential relay,
Yasir Muhammad +8 more
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MATEC Web of Conferences, 2018 The disturbance of the high voltage transmission can be caused by a short circuit, overload, lightning surge, and other natural disturbances. That disturbance can lead to disruption of the distribution of electricity and damage to the electric power ...
Zulkarnaini Zulkarnaini, Rizki Muhammad
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Optimizing Relay Precoding for Wireless Coordinated Relaying
CoRR, 2014 Processing of multiple communication flows in wireless systems has given rise to a number of novel transmission techniques, notably the two-way relaying based on wireless network coding. Recently, a related set of techniques has emerged, termed coordinated direct and relay (CDR) transmissions, where the constellation of traffic flows is more general ...
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Coordination of Overcurrent Relay In Distribution System
ELEKTRIKA- Journal of Electrical Engineering, 2022 The overcurrent phenomena are a dangerous condition that can be occurred in the electrical system and equipment. The condition of the overcurrent will cause the short-circuited current flows through the system and affect the other distribution line. The purpose of this study is to investigate the coordination of the overcurrent relay in different types
Rasyidah Mohamad Idris +1 more
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Achieving full diversity in multi-antenna two-way relay networks via symbol-based physical-layer network coding [PDF]
, 2013 This paper considers physical-layer network coding (PNC) with M-ary phase-shift keying (MPSK) modulation in two-way relay channel (TWRC). A low complexity detection technique, termed symbol-based PNC (SPNC), is proposed for the relay.
Lv, Tiejun +4 more
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Single-User Performance of Uplink DS-CDMA using Relay-Assisted Diversity [PDF]
, 2006 In a wireless system with distributed mobile users, several mobile users may cooperate with each other in order to achieve the transmit diversity. In this contribution we investigate the single-user performance of an uplink direct-sequence code-division ...
Fang, W, Yang, L-L, Hanzo, L
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Gazi Üniversitesi Fen Bilimleri DergisiDirectional overcurrent relays (DOCRs) play a crucial role in protecting sub-transmission and distribution systems due to their simplicity and cost- ffectiveness. For selective and rapid protection, proper coordination of these relays is essential.
Alişan Ayvaz
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IEEE AccessIntegrating Distributed Energy Resources into microgrids modifies the network’s system parameters and causes it to exhibit behaviour, particularly during fault conditions.
Sujatha Balasubramanian +2 more
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