A Comparison of Real-Time Thermal Rating Systems in the U.S. and the U.K.
Real-time thermal rating is a smart-grid technology that allows the rating of electrical conductors to be increased based on local weather conditions. Overhead lines are conventionally given a conservative, constant seasonal rating based on seasonal and regional worst case scenarios rather than actual, say, local hourly weather predictions. This paper provides a report of two pioneering schemes-one in the U.S. and one in the U.K.-where real-time thermal ratings have been applied. Thereby, we demonstrate that observing the local weather conditions in real time leads to additional capacity and safer operation. Second, we critically compare both approaches and discuss their limitations. In doing so, we arrive at novel insights which will inform and improve future real-time thermal rating projects.
- Research Organization:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- DOE - EE
- DOE Contract Number:
- DE-AC07-05ID14517
- OSTI ID:
- 1156905
- Report Number(s):
- INL/JOU-13-28553
- Journal Information:
- IEEE Transactions on Power Delivery, Vol. 29, Issue 4; ISSN 0885-8977
- Publisher:
- IEEE
- Country of Publication:
- United States
- Language:
- English
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