Admittance-Based Modeling of Cables and Overhead Lines by Idempotent Decomposition

Filipe Miguel Faria da Silva; Felipe Camara; Claus Leth Bak; Antonio Carlos Siqueira de Lima; Maria Teresa Correia de Barros

Admittance-Based Modeling of Cables and Overhead Lines by Idempotent Decomposition

Filipe Miguel Faria da Silva, Felipe Camara, Claus Leth Bak, Antonio Carlos Siqueira de Lima, Maria Teresa Correia de Barros

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

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Abstract

This paper presents a new modeling approach based on idempotent decomposition of the nodal admittance matrix for representation of cables and overhead lines (OHL). By subjecting the idempotent matrices rather than the nodal admittance matrix to rational fitting, the poor observability of the smallest eigenvalues in the lower frequency range is overcome. Unlike the well-known method of characteristics (MoC), this alternative representation yields a so general fully-coupled admittance matrix suitable to tackle scenarios encompassing short and long lengths. Besides retaining the frequency dependence of parameters, the proposed phase-domain model showed to be accurate and suitable to circumvent the requirement of small time-steps.

Original language	English
Title of host publication	Proceedings of the International Conference on Power Systems Transients (IPST)
Number of pages	7
Publisher	IPST
Publication date	Jun 2023
Publication status	Published - Jun 2023
Event	International Conference on Power Systems Transients - Thessaloniki, Greece Duration: 12 Jun 2023 → 15 Jun 2023 Conference number: XVI

Conference

Conference	International Conference on Power Systems Transients
Number	XVI
Country/Territory	Greece
City	Thessaloniki
Period	12/06/2023 → 15/06/2023

Series	International Conference on Power Systems Transients (IPST)
ISSN	2434-9739

Keywords

Cable, electromagnetic transients, idempotent decomposition, modeling, overhead line, vector fitting

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23IPST119Final published version, 1.41 MBLicence: CC BY 4.0

https://www.ipstconf.org/papers/Proc_IPST2023/23IPST119.pdfLicence: CC BY 4.0

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CABOTioN: Cables for HVDC Offshore Transmission Networks
Camara, F., Silva, F. M. F. D., Correia de Barros, M. T. & Siqueira Lima, A.
01/09/2021 → 31/01/2024
Project: Research

Cite this

@inproceedings{387a5219c50c48608656ef76ae4eff3b,

title = "Admittance-Based Modeling of Cables and Overhead Lines by Idempotent Decomposition",

abstract = "This paper presents a new modeling approach based on idempotent decomposition of the nodal admittance matrix for representation of cables and overhead lines (OHL). By subjecting the idempotent matrices rather than the nodal admittance matrix to rational fitting, the poor observability of the smallest eigenvalues in the lower frequency range is overcome. Unlike the well-known method of characteristics (MoC), this alternative representation yields a so general fully-coupled admittance matrix suitable to tackle scenarios encompassing short and long lengths. Besides retaining the frequency dependence of parameters, the proposed phase-domain model showed to be accurate and suitable to circumvent the requirement of small time-steps.",

keywords = "Cable, electromagnetic transients, idempotent decomposition, modeling, overhead line, vector fitting",

author = "Silva, {Filipe Miguel Faria da} and Felipe Camara and Bak, {Claus Leth} and {Antonio Carlos Siqueira de Lima} and {Maria Teresa Correia de Barros}",

year = "2023",

month = jun,

language = "English",

series = "International Conference on Power Systems Transients (IPST)",

publisher = "IPST",

booktitle = "Proceedings of the International Conference on Power Systems Transients (IPST)",

note = "International Conference on Power Systems Transients, IPST 2023 ; Conference date: 12-06-2023 Through 15-06-2023",

}

Silva, FMFD, Camara, F, Bak, CL, Antonio Carlos Siqueira de Lima & Maria Teresa Correia de Barros 2023, Admittance-Based Modeling of Cables and Overhead Lines by Idempotent Decomposition. in Proceedings of the International Conference on Power Systems Transients (IPST). IPST, International Conference on Power Systems Transients (IPST), International Conference on Power Systems Transients, Thessaloniki, Greece, 12/06/2023. <https://www.ipstconf.org/papers/Proc_IPST2023/23IPST119.pdf>

Admittance-Based Modeling of Cables and Overhead Lines by Idempotent Decomposition. / Silva, Filipe Miguel Faria da; Camara, Felipe; Bak, Claus Leth et al.
Proceedings of the International Conference on Power Systems Transients (IPST). IPST, 2023. (International Conference on Power Systems Transients (IPST)).

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - Admittance-Based Modeling of Cables and Overhead Lines by Idempotent Decomposition

AU - Silva, Filipe Miguel Faria da

AU - Camara, Felipe

AU - Bak, Claus Leth

AU - Antonio Carlos Siqueira de Lima

AU - Maria Teresa Correia de Barros

N1 - Conference code: XVI

PY - 2023/6

Y1 - 2023/6

N2 - This paper presents a new modeling approach based on idempotent decomposition of the nodal admittance matrix for representation of cables and overhead lines (OHL). By subjecting the idempotent matrices rather than the nodal admittance matrix to rational fitting, the poor observability of the smallest eigenvalues in the lower frequency range is overcome. Unlike the well-known method of characteristics (MoC), this alternative representation yields a so general fully-coupled admittance matrix suitable to tackle scenarios encompassing short and long lengths. Besides retaining the frequency dependence of parameters, the proposed phase-domain model showed to be accurate and suitable to circumvent the requirement of small time-steps.

AB - This paper presents a new modeling approach based on idempotent decomposition of the nodal admittance matrix for representation of cables and overhead lines (OHL). By subjecting the idempotent matrices rather than the nodal admittance matrix to rational fitting, the poor observability of the smallest eigenvalues in the lower frequency range is overcome. Unlike the well-known method of characteristics (MoC), this alternative representation yields a so general fully-coupled admittance matrix suitable to tackle scenarios encompassing short and long lengths. Besides retaining the frequency dependence of parameters, the proposed phase-domain model showed to be accurate and suitable to circumvent the requirement of small time-steps.

KW - Cable, electromagnetic transients, idempotent decomposition, modeling, overhead line, vector fitting

M3 - Article in proceeding

T3 - International Conference on Power Systems Transients (IPST)

BT - Proceedings of the International Conference on Power Systems Transients (IPST)

PB - IPST

T2 - International Conference on Power Systems Transients

Y2 - 12 June 2023 through 15 June 2023

ER -

Admittance-Based Modeling of Cables and Overhead Lines by Idempotent Decomposition

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Projects

CABOTioN: Cables for HVDC Offshore Transmission Networks

Cite this