Conference paper
Dynamic temperature estimation and real time emergency rating of transmission cables
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.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2012 |
| Pages: | 1-8 |
| Proceedings: | 2012 IEEE Power&Energy Society General Meeting. New Energy Horizons - Opportunities and Challenges |
| ISBN: | 1467327271 , 146732728X , 1467327298 , 9781467327275 , 9781467327282 and 9781467327299 |
| ISSN: | 19449933 and 19449925 |
| Types: | Conference paper |
| DOI: | 10.1109/PESGM.2012.6345324 |
| ORCIDs: | Holboll, J. |
Cables Dynamic temperature control Finite element methods Temperature prediction methods Transmission lines
Computational modeling FEM Mathematical model Power cables Soil Thermal resistance computational methodology dynamic temperature control dynamic temperature estimation finite element analysis finite element method finite element methods geometric dependent high resolution loadability lumped parameters model power cables power transmission lines real time emergency rating temperature 1.5 C temperature distribution temperature dynamical estimation temperature prediction methods temperature profile thermo electric equivalents time dependent transmission cables transmission lines transmission system operator well-founded decisions
