Abstract
The System Average Interruption Duration Index (SAIDI) and System Average Interruption Frequency Index (SAIFI) must be consistently improved, according to the Distribution System Operator (DSO). However, to measure the reliability and sustainability of the distribution network (DN) at the same time and guarantee customers' demands and uninterrupted power supply, the calculation methodology for reliability must be changed due to the rising demand for electrical consumers and the changing and installation of new technologies. This study demonstrates that different techniques, power grid topologies, and network zoning approach evaluations provide varied outcomes when computing reliability indices. The reliability indices, SAIDI and SAIFI, fault intensity evaluation, and weakness DN zones were evaluated using network zoning and Customer Minutes Interrupted (CMI) and repair time calculation methodologies. The results show that the capacity and the repair time have a direct impact on reliability indices. A detailed evaluation of the related elements may reveal the interconnectedness of the factors that assure reliability. By balancing the interests of numerous parties and guaranteeing the customer's demands, installing more renewable energy sources and assuring distributed generation, after assessing the environmental requirements, network downtime will be reduced at the same time and the level of consumer satisfaction will increase.
Published Version
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