Dynamic temperature estimation and real time emergency rating of transmission cables

R. S. Olsen; J. Holboll; Unnur Stella Gudmundsdottir

doi:10.1109/PESGM.2012.6345324

Dynamic temperature estimation and real time emergency rating of transmission cables

R. S. Olsen, J. Holboll, Unnur Stella Gudmundsdottir

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Abstract

This paper is concerned with the development of a fast computational methodology for dynamical estimation of the temperature in transmission cables solely based on current measurements and an enhanced version of the lumped parameters model, also denoted thermo electric equivalents (TEE). It is found that the calculated temperature estimations are fairly accurate — within 1.5^oC of the finite element method (FEM) simulation to which it is compared — both when looking at the temperature profile (time dependent) and the temperature distribution (geometric dependent). The methodology moreover enables real time emergency ratings, such that the transmission system operator can make well-founded decisions during faults. Hereunder is included the capability of producing high resolution loadability vs. time schedules within few minutes, such that the TSO can safely control the system.

Original language	English
Title of host publication	IEEE Power & Energy Society General Meeting
Number of pages	8
Publisher	IEEE
Publication date	2012
ISBN (Print)	978-1-4673-2727-5
DOIs	https://doi.org/10.1109/PESGM.2012.6345324
Publication status	Published - 2012

Keywords

Cables
Dynamic temperature control
Finite element methods
Temperature prediction methods
Transmission lines

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title = "Dynamic temperature estimation and real time emergency rating of transmission cables",

abstract = "This paper is concerned with the development of a fast computational methodology for dynamical estimation of the temperature in transmission cables solely based on current measurements and an enhanced version of the lumped parameters model, also denoted thermo electric equivalents (TEE). It is found that the calculated temperature estimations are fairly accurate — within 1.5oC of the finite element method (FEM) simulation to which it is compared — both when looking at the temperature profile (time dependent) and the temperature distribution (geometric dependent). The methodology moreover enables real time emergency ratings, such that the transmission system operator can make well-founded decisions during faults. Hereunder is included the capability of producing high resolution loadability vs. time schedules within few minutes, such that the TSO can safely control the system.",

keywords = "Cables, Dynamic temperature control , Finite element methods , Temperature prediction methods , Transmission lines ",

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doi = "10.1109/PESGM.2012.6345324",

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N2 - This paper is concerned with the development of a fast computational methodology for dynamical estimation of the temperature in transmission cables solely based on current measurements and an enhanced version of the lumped parameters model, also denoted thermo electric equivalents (TEE). It is found that the calculated temperature estimations are fairly accurate — within 1.5oC of the finite element method (FEM) simulation to which it is compared — both when looking at the temperature profile (time dependent) and the temperature distribution (geometric dependent). The methodology moreover enables real time emergency ratings, such that the transmission system operator can make well-founded decisions during faults. Hereunder is included the capability of producing high resolution loadability vs. time schedules within few minutes, such that the TSO can safely control the system.

AB - This paper is concerned with the development of a fast computational methodology for dynamical estimation of the temperature in transmission cables solely based on current measurements and an enhanced version of the lumped parameters model, also denoted thermo electric equivalents (TEE). It is found that the calculated temperature estimations are fairly accurate — within 1.5oC of the finite element method (FEM) simulation to which it is compared — both when looking at the temperature profile (time dependent) and the temperature distribution (geometric dependent). The methodology moreover enables real time emergency ratings, such that the transmission system operator can make well-founded decisions during faults. Hereunder is included the capability of producing high resolution loadability vs. time schedules within few minutes, such that the TSO can safely control the system.

KW - Cables

KW - Dynamic temperature control

KW - Finite element methods

KW - Temperature prediction methods

KW - Transmission lines

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DO - 10.1109/PESGM.2012.6345324

M3 - Article in proceedings

SN - 978-1-4673-2727-5

BT - IEEE Power & Energy Society General Meeting

PB - IEEE

ER -

Dynamic temperature estimation and real time emergency rating of transmission cables

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