Dynamic temperature estimation and real time emergency rating of transmission cables
Publication: Research - peer-review › Article in proceedings – Annual report year: 2012
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Dynamic temperature estimation and real time emergency rating of transmission cables. / Olsen, R. S.; Holboll, J.; Gudmundsdottir, Unnur Stella.
In: IEEE Power & Energy Society General Meeting. IEEE, 2012.Publication: Research - peer-review › Article in proceedings – Annual report year: 2012
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TY - GEN
T1 - Dynamic temperature estimation and real time emergency rating of transmission cables
A1 - Olsen,R. S.
A1 - Holboll,J.
A1 - Gudmundsdottir,Unnur Stella
AU - Olsen,R. S.
AU - Holboll,J.
AU - Gudmundsdottir,Unnur Stella
PB - IEEE
PY - 2012
Y1 - 2012
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 1.5<sup>o</sup>C 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 1.5<sup>o</sup>C 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
U2 - 10.1109/PESGM.2012.6345324
DO - 10.1109/PESGM.2012.6345324
SN - 978-1-4673-2727-5
BT - IEEE Power & Energy Society General Meeting
T2 - IEEE Power & Energy Society General Meeting
ER -