A Planning Tool for Reliability Assessment of Overhead Distribution Lines in Hybrid AC/DC Grids

Giovanna Adinolfi, Roberto Ciavarella, Giorgio Graditi, Antonio Ricca and Maria Valenti
Additional contact information
Giovanna Adinolfi: Department of Energy Technologies and Renewable Sources, ENEA, 00196 Rome, Italy
Roberto Ciavarella: Department of Energy Technologies and Renewable Sources, ENEA, 00196 Rome, Italy
Giorgio Graditi: Department of Energy Technologies and Renewable Sources, ENEA, 00196 Rome, Italy
Antonio Ricca: Department of Energy Technologies and Renewable Sources, ENEA, 00196 Rome, Italy
Maria Valenti: Department of Energy Technologies and Renewable Sources, ENEA, 00196 Rome, Italy

Sustainability, 2021, vol. 13, issue 11, 1-16

Abstract: Integration of DC grids into AC networks will realize hybrid AC/DC grids, a new energetic paradigm which will become widespread in the future due to the increasing availability of DC-based generators, loads and storage systems. Furthermore, the huge connection of intermittent renewable sources to distribution grids could cause security and congestion issues affecting line behaviour and reliability performance. This paper aims to propose a planning tool for congestion forecasting and reliability assessment of overhead distribution lines. The tool inputs consist of a single line diagram of a real or synthetic grid and a set of 24-h forecasting time series concerning climatic conditions and grid resource operative profiles. The developed approach aims to avoid congestions criticalities, taking advantage of optimal active power dispatching among “congestion-nearby resources”. A case study is analysed to validate the implemented control strategy considering a modified IEEE 14-Bus System with introduction of renewables. The tool also implements reliability prediction formulas to calculate an overhead line reliability function in congested and congestions-avoided conditions. A quantitative evaluation underlines the reliability performance achievable after the congestion strategy action.

Keywords: congestion logics; failure rate; forecasting; hybrid AC/DC grids; medium voltage distribution grid; reliability assessment; renewables; temperature rise; overhead lines (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/2071-1050/13/11/6099/pdf (application/pdf)
https://www.mdpi.com/2071-1050/13/11/6099/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:13:y:2021:i:11:p:6099-:d:564595

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().