A non-unit protection principle based on travelling wave for HVDC transmission lines

Luo, Shuxin; Xiang, Dong; Shi, Shenxing; Wang, Bin

doi:10.1109/upec.2015.7339909

Cited by 5 publications

(1 citation statement)

References 10 publications

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“…Therefore the protection system devices and relays must be reconfigured to operate and coordinate accordingly. Although research has shown that high-impedance faults can result in dampened protection operation [58] or protection blinding [59], in the simulations presented earlier, the ratings of the interconnecting solutions proposed are driven by low-impedance short-circuit faults. This along with novel research into high-impedance fault mitigation [60], leads the authors to believe that relay coordination poses no greater problem compared to other protection issues, however a relay-coordination analysis is out of the scope of this paper.…”

Section: Potentially Undesired Effects Due To Interconnecting Inductancementioning

confidence: 93%

Demonstration of fast‐acting protection as a key enabler for more‐electric aircraft interconnected architectures

Kostakis

Norman

Galloway

et al. 2017

IET Electrical Systems in Transportation

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This version is available at https://strathprints.strath.ac.uk/59952/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Abstract: Driven by anticipated fuel-burn and efficiency benefits, the More-Electric Aircraft (MEA) concept is a technological shift in the aviation industry which seeks to replace mechanical, hydraulic and pneumatic functions with electrical equivalents. This shift has greatly increased the electrical power demands of aircraft and has made MEA networks larger and more complex. Consequently, new and more efficient electrical architectures are required, with interconnected generation potentially being one design approach that could bring improved performance and fuel savings. This paper discusses the current state of interconnected generation in the aviation industry and key technological advances that could facilitate feasible interconnection options. The paper demonstrates that interconnected systems can breach certification rules under fault conditions. Through modeling and simulation, it investigates the airworthiness-requirements compliance of potential impedance solutions to this issue and quantifies the potential impact on system weight. It concludes by identifying fast fault clearing protection as being a key enabling technology that facilitates the use of light-weight and standards-compliant architectures.

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Section: Potentially Undesired Effects Due To Interconnecting Inductancementioning

confidence: 93%

Demonstration of fast‐acting protection as a key enabler for more‐electric aircraft interconnected architectures

Kostakis

Norman

Galloway

et al. 2017

IET Electrical Systems in Transportation

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Non-unit Protection for Asymmetrical DC Line Faults in Bipolar LCC-HVDC Transmission Systems

Tiwari

Gupta

Sood

et al. 2023

IETE Journal of Research

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A Pilot Protection for LCC-HVDC Transmission Lines Based on Measured Surge Impedance at Tuning Frequency

Liu

Song

et al. 2022

IEEE Trans. Power Delivery

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A non-unit protection principle based on travelling wave for HVDC transmission lines

Cited by 5 publications

References 10 publications

Demonstration of fast‐acting protection as a key enabler for more‐electric aircraft interconnected architectures

Demonstration of fast‐acting protection as a key enabler for more‐electric aircraft interconnected architectures

Non-unit Protection for Asymmetrical DC Line Faults in Bipolar LCC-HVDC Transmission Systems

A Pilot Protection for LCC-HVDC Transmission Lines Based on Measured Surge Impedance at Tuning Frequency

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