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Development and experimental validation of a weather-based dynamic line rating system

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2 Author(s)
Spoor, D.J. ; Transgrid, Sydney, NSW, Australia ; Roberts, J.P.

TransGrid, Australia, has implemented a dynamic line rating system on several 330kV and 132kV transmission lines in response to emerging thermal limitations. This system produces a more intelligent grid by utilizing weather stations that employ mobile telemetry, where these are installed directly on the steel lattice structures. This paper describes the rationale behind the development of the system and provides rationale behind the various decisions made during the implementation. It also presents experimental analysis of conductor temperatures, which is used to validate several internationally recognized overhead conductor rating methodologies. Moreover, these temperature measurements identify the need for simple data filtering strategies and the use of localised weather observations.

Published in:

Innovative Smart Grid Technologies Asia (ISGT), 2011 IEEE PES

Date of Conference:

13-16 Nov. 2011

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