Uprating an overhead line. Italian TSO applications to increase system N-1 security

Salvatore Favuzza, Fabio Massaro, Enrico Maria Carlini, Cristiano Quaciari, Giangreco

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Citations (Scopus)


This paper analyzes innovative devices tooptimize the energy flows transmission on existing overheadlines. Indeed sometimes the structural asset isn’t adequateto manage energy generated by Renewable Energy Source(RES) in particular operating conditions. In addiction theoutage of primary substations on the grid and the increaseof consumptions have caused growing load currents. Inorder to satisfy these needs, TSOs have adopted newmeasures on existing power lines and N-1 criteria to ensuresthe electrical grid security. These particular devices areDynamic Rating systems. After introducing thermalresistant conductors and Dynamic Rating (DR) solutions,paper reports two different applications used by TERNAItalian TSO. These systems are already installed on linesand they are contributing to increase power flows thanks toraise by 10-30% of the real time dynamic ratings than thestatic evaluations. Advantages for electrical systems aremany such energy vectors optimizations, congestionsreductions, reliability increasing, cross-border power flowsincreasing, smart grid development.
Original languageEnglish
Title of host publicationProceedings of IEEE 2nd International Conference on Renewable Energy Research and Applications - ICRERA 2013
Number of pages6
Publication statusPublished - 2013

Publication series


All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment


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