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Title: 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.
Authors:
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Publication Date:
OSTI Identifier:
1156905
Report Number(s):
INL/JOU-13-28553
Journal ID: ISSN 0885-8977
DOE Contract Number:
DE-AC07-05ID14517
Resource Type:
Journal Article
Resource Relation:
Journal Name: IEEE Transactions on Power Delivery; Journal Volume: 29; Journal Issue: 4
Publisher:
IEEE
Research Org:
Idaho National Laboratory (INL)
Sponsoring Org:
DOE - EE
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY; 24 POWER TRANSMISSION AND DISTRIBUTION; CAPACITY; SIMULATION; WIND capacity; CFD; dynamic line rating; modeling; wind