Improvement of Transmission Line Ampacity Utilization by Weather-Based Dynamic Line Rating
Abstract
Most of the existing overhead transmission lines (TLs) are assigned a static rating by considering the conservative environmental conditions (e.g., high ambient temperature and low wind speed). Such a conservative approach often results in underutilization of line ampacity because the worst conditions prevail only for a short period of time during the year. Dynamic line rating (DLR) utilizes local meteorological conditions and grid loadings to adaptively compute additional line ampacity headroom that may be available due to favorable local environmental conditions. This paper details Idaho National Laboratory-developed weather-based DLR, which utilizes a state-of-the-art general line ampacity state solver for real-time computation of thermal ratings of TLs. Performance of the proposed DLR solution is demonstrated in existing TL segments at AltaLink, Canada, and the potential benefits of the proposed DLR for enhanced transmission ampacity utilization are quantified. Moreover, we investigated a hypothetical case for emulating the impact of an additional wind plant near the test grid. Furthermore, the results for the given system and data configurations demonstrated that real-time ratings were above the seasonal static ratings for at least 76.6% of the time, with a mean increase of 22% over the static rating, thereby demonstrating huge potential for improvement on ampacitymore »
- Authors:
-
[1];
[1];
[1];
[1];
[1];
[1];
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- AltaLink, Calgary, AB (Canada)
- Publication Date:
- Research Org.:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Wind Energy Technologies Office
- OSTI Identifier:
- 1474098
- Report Number(s):
- INL/JOU-17-42173-Rev000
Journal ID: ISSN 0885-8977
- Grant/Contract Number:
- AC07-05ID14517
- Resource Type:
- Accepted Manuscript
- Journal Name:
- IEEE Transactions on Power Delivery
- Additional Journal Information:
- Journal Volume: 33; Journal Issue: 4; Journal ID: ISSN 0885-8977
- Publisher:
- IEEE
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 17 WIND ENERGY; Dynamic line rating; general line ampacity state solver; grid integration; power system planning
Citation Formats
Bhattarai, Bishnu P., Gentle, Jake P., McJunkin, Timothy, Hill, Porter J., Myers, Kurt S., Abboud, Alexander W., Renwick, Rodger, and Hengst, David. Improvement of Transmission Line Ampacity Utilization by Weather-Based Dynamic Line Rating. United States: N. p., 2018.
Web. doi:10.1109/TPWRD.2018.2798411.
Bhattarai, Bishnu P., Gentle, Jake P., McJunkin, Timothy, Hill, Porter J., Myers, Kurt S., Abboud, Alexander W., Renwick, Rodger, & Hengst, David. Improvement of Transmission Line Ampacity Utilization by Weather-Based Dynamic Line Rating. United States. https://doi.org/10.1109/TPWRD.2018.2798411
Bhattarai, Bishnu P., Gentle, Jake P., McJunkin, Timothy, Hill, Porter J., Myers, Kurt S., Abboud, Alexander W., Renwick, Rodger, and Hengst, David. Thu .
"Improvement of Transmission Line Ampacity Utilization by Weather-Based Dynamic Line Rating". United States. https://doi.org/10.1109/TPWRD.2018.2798411. https://www.osti.gov/servlets/purl/1474098.
@article{osti_1474098,
title = {Improvement of Transmission Line Ampacity Utilization by Weather-Based Dynamic Line Rating},
author = {Bhattarai, Bishnu P. and Gentle, Jake P. and McJunkin, Timothy and Hill, Porter J. and Myers, Kurt S. and Abboud, Alexander W. and Renwick, Rodger and Hengst, David},
abstractNote = {Most of the existing overhead transmission lines (TLs) are assigned a static rating by considering the conservative environmental conditions (e.g., high ambient temperature and low wind speed). Such a conservative approach often results in underutilization of line ampacity because the worst conditions prevail only for a short period of time during the year. Dynamic line rating (DLR) utilizes local meteorological conditions and grid loadings to adaptively compute additional line ampacity headroom that may be available due to favorable local environmental conditions. This paper details Idaho National Laboratory-developed weather-based DLR, which utilizes a state-of-the-art general line ampacity state solver for real-time computation of thermal ratings of TLs. Performance of the proposed DLR solution is demonstrated in existing TL segments at AltaLink, Canada, and the potential benefits of the proposed DLR for enhanced transmission ampacity utilization are quantified. Moreover, we investigated a hypothetical case for emulating the impact of an additional wind plant near the test grid. Furthermore, the results for the given system and data configurations demonstrated that real-time ratings were above the seasonal static ratings for at least 76.6% of the time, with a mean increase of 22% over the static rating, thereby demonstrating huge potential for improvement on ampacity utilization.},
doi = {10.1109/TPWRD.2018.2798411},
journal = {IEEE Transactions on Power Delivery},
number = 4,
volume = 33,
place = {United States},
year = {2018},
month = {1}
}
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Figures / Tables:
Figure 1: A conceptual diagram of DLR.
Works referencing / citing this record:
Effect of thermal boundary condition on forced convection from circular cylinders
journal, July 2019
- Abdelhady, Mohamed; Wood, David
- Numerical Heat Transfer, Part A: Applications, Vol. 76, Issue 6
Performance and Accuracy Investigation of the Two-Step Algorithm for Power System State and Line Temperature Estimation
journal, April 2018
- Wydra, Michal
- Energies, Vol. 11, Issue 4
Time-Aware Monitoring of Overhead Transmission Line Sag and Temperature with LoRa Communication
journal, February 2019
- Wydra, Michal; Kubaczynski, Pawel; Mazur, Katarzyna
- Energies, Vol. 12, Issue 3
Figures / Tables found in this record: