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122539

Proposed High-Performance Digital Distance Relay.

Article

Last updated: 04 Jan 2025

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Subjects

-

Tags

Electrical Engineering

Abstract

This paper proposes a new design for high-performance digital distance relay. It is equipped with a dedicated decaying dc component estimation algorithm and a new method for compensation of ground fault resistance. The proposed relay algorithm can estimate and eliminate the dc decaying component from fault current signals within one cycle from the fault instant. Then, it uses fast Fourier transform to extract accurate phasor quantities of fault currents. Also, an innovative algorithm for compensation of fault resistance is introduced. The later technique is based on supposing a virtual distance relay at the other end of the line. Using the preliminary estimation of the apparent relay-to-fault impedance at both sides, the unknown fault resistance and its related error are determined. Hence, this error can be compensated in computing the actual relay-to-fault impedance. Many test cases are performed under different fault locations and several values of ground fault resistance to confirm the efficacy of the proposed relay. 

DOI

10.21608/bfemu.2020.122539

Authors

First Name

Akram

Last Name

Elmitwally

MiddleName

Ibrahim Mohamed

Affiliation

Associate Professor., Electrical Power Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., 35516., Egypt.

Email

-

City

Mansoura

Orcid

-

Volume

36

Article Issue

3

Related Issue

17857

Issue Date

2011-09-01

Receive Date

2011-05-10

Publish Date

2020-11-10

Page Start

1

Page End

8

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 36_Issue 3_Pages 1-8.pdf

PDF . 152.1kB

Link

https://bfemu.journals.ekb.eg/article_122539.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=122539

Order

1

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

Proposed High-Performance Digital Distance Relay.

Details

Type

Article

Created At

22 Jan 2023