NDLI: Detecting instant of multiple faults on the transmission line and its types using time

Content Provider	IET Digital Library
Author	Na, Shweta Kishor, Nand Uhlen, Kjetil Mohanty, Soumya Ranjan
Abstract	In a complex interconnected network, due to dynamic interaction between the AC networks, during occurrences of faults, the successful relay operation is threatened. For security and reliability of the power system network, a fast and accurate protection scheme is of great importance. This study presents a protection scheme for multiple fault detection at bus/line and its type in a wide area network. If a fault occurs on a line, followed by another fault at the same/different line, before the clearance of former fault, the proposed scheme is capable of detecting such multiple fault events. The scheme applies processed signal information for its time–frequency representation using Smoothed Pseudo Wigner–Ville distribution, followed by Hilbert transform and calculation of indices to interpret the fault events. It is shown that faulted bus, faulted line, time instant, and types of faults can be easily identified with low computational burden. The scheme is validated on the signals simulated on Kundur's model, IEEE 39 bus system and verified with signals on real-time digital simulator for different fault conditions; fault resistance and fault location on the line. The scheme can be successfully applied on signals available from phasor measurement units for wide area network protection.
Starting Page	5248
Ending Page	5256
Page Count	9
ISSN	17518687
Volume Number	13
e-ISSN	17518695
Issue Number	Issue 22, Nov (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/13/22
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2018.5572
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-10-15
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC Network Accurate Protection Scheme Complex Interconnected Network Dynamic Interaction Fast Protection Scheme Fault Diagnosis Fault Resistance Faulted Bus Faulted Line Hilbert Transform Integral Transforms Mathematical Analysis Multiple Fault Detection Multiple Fault Events Power System Network Power System Protection Power System Security Power Transmission Cables Power Transmission Fault Power Transmission Line Power Transmission Protection Power Transmission Reliability Power Transmission, Distribution And Supply PseudoWigner–Ville Distribution Real-time Digital Simulator Real-time Signal Relay Operation Relay Protection Reliability Security Signal Information Standard IEEE 39 Bus System Statistics Time-frequency Analysis Time–frequency Analysis Time–frequency Representation Transmission Line Two-area Kundur's Model Wide Area Network Protection Wide Area Signal Wigner Distribution
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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