NDLI: Critical aspects on wavelet transforms based fault identification procedures in HV transmission line

Content Provider	IET Digital Library
Author	Adly, Ahmed R. Sehiemy, Ragab A. El Abdelaziz, Almoataz Youssef Ayad, Nabil M. A.
Abstract	The fault identification process in transmission systems involves three functions: discrimination, classification and phase selection. The current study classifies the methods that applied for each function. Moreover, this study introduces criticism and assessment study that helps the power system protection engineer to choose the best fault identification scheme at responsible indices. Investigated solutions for the drawbacks appeared with the previous methods are suggested. This study also proposes sensitive and automated fault identification scheme to solve the existing challenges such as high-impedance faults (HIFs), non-linear modelling of arcing etc. Several simulation studies are employed using alternative transients program/electromagnetic transient program (ATP/EMTP) package on a sample 500 kV test system to ensure the performances of the proposed scheme compared with the previous methods. Simulation results concluded that: the proposed identification scheme has the ability to discriminate correctly between HIF and low-impedance faults using current signal captured from one end only. Moreover, the proposed scheme alleviates perfectly the problems associated with load variations by adaptive threshold settings and reduces the impacts on the environmental and external phenomena.
Starting Page	508
Ending Page	517
Page Count	10
ISSN	17518687
Volume Number	10
e-ISSN	17518695
Issue Number	Issue 2, Feb (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/10/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2015.0899
Journal	IET Generation, Transmission & Distribution
Publisher Date	2016-02-04
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Arcing ATP/EMTP Package Classification Function Discrimination Function EMTP Fault Diagnosis Fault Identification Procedure HIF High Voltage Transmission Line High-impedance Fault HV Transmission Line Integral Transforms Phase Selection Function Power System Protection Engineer Power Transmission Fault Power Transmission, Distribution And Supply Voltage 500 KV Wavelet Transform
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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