Open AccessReliability assessment of island multi‐energy microgrids
Author(s) -
Santos Marcos,
Huo Da,
Wade Neal,
Greenwood David,
Sarantakos Ilias
Publication year - 2021
Publication title -
energy conversion and economics
Language(s) - English
Resource type - Journals
ISSN - 2634-1581
DOI - 10.1049/enc2.12040
Subject(s) - microgrid , reliability (semiconductor) , reliability engineering , electricity , flexibility (engineering) , monte carlo method , grid , mains electricity , incidence matrix , fault (geology) , computer science , biogas , natural gas , pipeline transport , engineering , renewable energy , environmental engineering , power (physics) , electrical engineering , mathematics , waste management , statistics , physics , geometry , voltage , seismology , geology , node (physics) , structural engineering , quantum mechanics
Multi‐energy microgrids could result in more flexibility and increase reliability by interconnecting networks. Electricity and gas networks exhibit very different dynamic behaviours in response to a fault or failure. Gas networks have built‐in energy storages that can continue to provide a reliable supply if gas inputs to the system are compromised. This study presents a novel reliability assessment method applied to multi‐energy microgrids; the method combines an incidence matrix analysis that identifies the connectivity between sources and load points with a sequential Monte Carlo simulation and generation adequacy evaluation. A case study is conducted by using an electricity‐gas microgrid. The electricity network is a multi‐sourced grid, whereas the gas network is supplied by a biogas plant. The linepack (gas stored along the pipelines) is modelled to account for the slower gas dynamics. The proposed method is evaluated on a real‐world electricity distribution network in Austria. The results indicate the reliability benefits of forming a multi‐energy microgrid.