Generalized Formulation and Surge Analysis on Overhead Lines: Impedance/Admittance of A Multi-Layer Earth

Haoyan Xue; Jean Mahseredjian; Akihiro Ametani; Jesus Morales; Ilhan Kocar

doi:10.1109/TPWRD.2021.3049595

Generalized Formulation and Surge Analysis on Overhead Lines: Impedance/Admittance of A Multi-Layer Earth

Haoyan Xue
, Jean Mahseredjian
, Akihiro Ametani
, Jesus Morales
, Ilhan Kocar

Research output: Journal article publication › Journal article › Academic research › peer-review

17 Citations (Scopus)

Abstract

A generalized formulation of earth-return impedance and admittance for overhead lines above a multi-layer earth is derived. An equivalent homogeneous earth method (EHEM) and a Method of Moments - Surface Admittance Operator (MoM-SO) method with modified earth-return Green function considering an N-layer earth are also proposed. The frequency responses of wave propagation characteristics are evaluated by the newly proposed formulas and compared to those found from existing formulas in software used for the simulation of electromagnetic transients. Transient simulations performed in an electromagnetic transient (EMT) type simulation tool are also presented. It is shown that the proposed generalized formulas, the EHEM and the modified MoM-SO method, are in agreement, validating and verifying the results found in this paper.

Original language	English
Pages (from-to)	3834-3845
Number of pages	12
Journal	IEEE Transactions on Power Delivery
Volume	36
Issue number	6
DOIs	https://doi.org/10.1109/TPWRD.2021.3049595
Publication status	Published - Dec 2021
Externally published	Yes

Keywords

admittance
earth-return impedance
EMTP
multi-layer earth
Overhead lines
transient
wave propagation

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

More information

10.1109/TPWRD.2021.3049595

Cite this

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title = "Generalized Formulation and Surge Analysis on Overhead Lines: Impedance/Admittance of A Multi-Layer Earth",

abstract = "A generalized formulation of earth-return impedance and admittance for overhead lines above a multi-layer earth is derived. An equivalent homogeneous earth method (EHEM) and a Method of Moments - Surface Admittance Operator (MoM-SO) method with modified earth-return Green function considering an N-layer earth are also proposed. The frequency responses of wave propagation characteristics are evaluated by the newly proposed formulas and compared to those found from existing formulas in software used for the simulation of electromagnetic transients. Transient simulations performed in an electromagnetic transient (EMT) type simulation tool are also presented. It is shown that the proposed generalized formulas, the EHEM and the modified MoM-SO method, are in agreement, validating and verifying the results found in this paper.",

keywords = "admittance, earth-return impedance, EMTP, multi-layer earth, Overhead lines, transient, wave propagation",

author = "Haoyan Xue and Jean Mahseredjian and Akihiro Ametani and Jesus Morales and Ilhan Kocar",

note = "Funding Information: This work was supported by the NSERC Industrial Research Chair. Publisher Copyright: {\textcopyright} 1986-2012 IEEE.",

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doi = "10.1109/TPWRD.2021.3049595",

language = "English",

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TY - JOUR

T1 - Generalized Formulation and Surge Analysis on Overhead Lines

T2 - Impedance/Admittance of A Multi-Layer Earth

AU - Xue, Haoyan

AU - Mahseredjian, Jean

AU - Ametani, Akihiro

AU - Morales, Jesus

AU - Kocar, Ilhan

PY - 2021/12

Y1 - 2021/12

N2 - A generalized formulation of earth-return impedance and admittance for overhead lines above a multi-layer earth is derived. An equivalent homogeneous earth method (EHEM) and a Method of Moments - Surface Admittance Operator (MoM-SO) method with modified earth-return Green function considering an N-layer earth are also proposed. The frequency responses of wave propagation characteristics are evaluated by the newly proposed formulas and compared to those found from existing formulas in software used for the simulation of electromagnetic transients. Transient simulations performed in an electromagnetic transient (EMT) type simulation tool are also presented. It is shown that the proposed generalized formulas, the EHEM and the modified MoM-SO method, are in agreement, validating and verifying the results found in this paper.

AB - A generalized formulation of earth-return impedance and admittance for overhead lines above a multi-layer earth is derived. An equivalent homogeneous earth method (EHEM) and a Method of Moments - Surface Admittance Operator (MoM-SO) method with modified earth-return Green function considering an N-layer earth are also proposed. The frequency responses of wave propagation characteristics are evaluated by the newly proposed formulas and compared to those found from existing formulas in software used for the simulation of electromagnetic transients. Transient simulations performed in an electromagnetic transient (EMT) type simulation tool are also presented. It is shown that the proposed generalized formulas, the EHEM and the modified MoM-SO method, are in agreement, validating and verifying the results found in this paper.

KW - admittance

KW - earth-return impedance

KW - EMTP

KW - multi-layer earth

KW - Overhead lines

KW - transient

KW - wave propagation

UR - https://www.scopus.com/pages/publications/85099237570

U2 - 10.1109/TPWRD.2021.3049595

DO - 10.1109/TPWRD.2021.3049595

M3 - Journal article

AN - SCOPUS:85099237570

SN - 0885-8977

VL - 36

SP - 3834

EP - 3845

JO - IEEE Transactions on Power Delivery

JF - IEEE Transactions on Power Delivery

IS - 6

ER -

Generalized Formulation and Surge Analysis on Overhead Lines: Impedance/Admittance of A Multi-Layer Earth

Abstract

Keywords

ASJC Scopus subject areas

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