Results 21 to 30 of about 1,644,928 (302)

QPSK Block-Modulation Codes for Unequal Error Protection [PDF]

open access: yes, 1995
Unequal error protection (UEP) codes find applications in broadcast channels, as well as in other digital communication systems, where messages have different degrees of importance.
Lin, Shu, Morelos-Zaragoza, Robert H
core   +2 more sources

An Incremental Quantity Based Distance Protection With Capacitor Voltage Estimation for Series Compensated Transmission Lines

open access: yesIEEE Access, 2021
Series capacitors increase the power transfer limit of transmission lines. However, the protection of series compensated lines using only local measurement is challenging. Phasor based distance protection experiences delay and directional problems in the
Md. Tanbhir Hoq   +2 more
doaj   +1 more source

State-of-the-art on the protection of FACTS compensated high-voltage transmission lines: a review

open access: yesHigh Voltage, 2018
In recent years, the inclusion of flexible AC transmission systems (FACTS)-based compensating devices such as a thyristor-controlled series capacitor (TCSC) and a unified power flow controller (UPFC) has been increased in high-voltage power transmission ...
Sauvik Biswas, Paresh Kumar Nayak
doaj   +1 more source

On Primitive BCH Codes with Unequal Error Protection Capabilities [PDF]

open access: yes, 1995
Presents a class of binary primitive BCH codes that have unequal-error-protection (UEP) capabilities. The authors use a previous result on the span of their minimum weight vectors to show that binary primitive BCH codes, containing second-order punctured
Lin, Shu, Morelos-Zaragoza, Robert H
core   +2 more sources

Distance protection method applicable to renewable energy grid-connected systems

open access: yes电力工程技术, 2023
To further improve the performance of distance protection in renewable energy systems, a distance protection method is proposed, which considers the effects of control system and the distributed capacitance effect of the line.
GUI Xiaozhi   +3 more
doaj   +1 more source

A Novel Two-step Distance Protection for Flexible HVDC Transmission Lines [PDF]

open access: yesE3S Web of Conferences, 2021
DC line fault is one of the key problems that must be solved in a flexible HVDC system. During quite a long time between the existing main protection and backup protection of the HVDC line, there is no line protection method to detect the fault, which ...
Fang Zeya   +3 more
doaj   +1 more source

An Enhanced Algorithm for Conventional Protection Devices of Transmission Lines With DTLR

open access: yesIEEE Access, 2021
As the installed capacity of renewable generation continues to increase nowadays to satisfy both emissions and economic requirements, the nature of intermittent generation results in a need to further increase transmission capacity.
Elsaeed Ali, Andrew M. Knight
doaj   +1 more source

Distance Protection for Microgrids in Distribution System [PDF]

open access: yes, 2015
Owing to the increasing penetration of distributed generation, there are some challenges for the conventional protection in distribution system. Bidirectional power flow and variable fault current because of the various operation modes may lead to the ...
Guerrero, Josep M.   +3 more
core   +2 more sources

A Setting Method of the Second-zone Grounding Distance Protection for 110 kV Lines Applicable to Distributed Wind Power Integration

open access: yesZhejiang dianli, 2022
On the 110 kV lines connected to the distributed wind power, following the conventional protection configuration requirements, the distributed wind power side is usually not equipped with protection. However, since the distributed wind power is connected,
ZHANG Anlong   +6 more
doaj   +1 more source

Improvement of distance protection algorithms based on phasor measurements [PDF]

open access: yesE3S Web of Conferences, 2023
Distance protection of overhead lines is widely used and is continually being improved. However, the distance protection cannot work stably and is blocked in several electromechanical transients. Additionally, a non-linear arc can affect the stability of
Mokeev Alexey V., Piskunov Sergey A.
doaj   +1 more source

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