Techno-Economic analysis of distributed generation for power system reliability and loss reduction

Autor: Bimrew Mhari Enyew, Ayodeji Olalekan Salau, Baseem Khan, Issaias Gidey Hagos, Haymanot Takele, Oluwafunso Oluwole Osaloni
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: International Journal of Sustainable Energy, Vol 42, Iss 1, Pp 873-888 (2023)
Druh dokumentu: article
ISSN: 1478-6451
1478-646X
14786451
DOI: 10.1080/14786451.2023.2244617
Popis: This paper presents a techno-economic analysis of the impact of distributed generation (DG) integration for power loss reduction and reliability of two 33 kV radial outgoing feeders at the Motta distribution substation in Ethiopia. Transient earth faults and permanent short-circuits were identified to be the most common causes of interruptions. The substation's system average interruption frequency index (SAIFI) is 806 and its system average interruption duration index (SAIDI) is 1394.145 for planned outages. This necessitates the pursuit of effective methods to increase the reliability of the distribution system. The results show that the distribution system is more reliable with the SAIFI and customer average interruption frequency index (CAIFI) reduced by 97.8%, SAIDI reduced by 76%, average service availability index (ASAI) increased by 14.38%, and average service unavailability index (ASUI) reduced by 76%, resulting in a total power loss reduction of 0.32 MW. The cost analysis was performed using the Monte Carlo (MC) reliability analysis and the DG net present cost analysis results in a payback period of less than five years indicating that the system is profitable.
Databáze: Directory of Open Access Journals
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