Using of distributed energy ressources for microgrid resilience achieving

In general cases, particularly in developing countries, the weakness of the national electric grid is due to overloading, high temperatures and bad weather. In such systems, the interruptions of electricity supply can take several hours to days. To prevent the power deficit, consumers can use diesel generators that are very noisy and highly polluting. But, as alternative, this paper proposes a combination of wind generator, PV and storage devices for load shifting. This can help to improve the grid resilience and the supply continuity. This paper presents a methodological analysis of the grid weakness, based on experimental data. The Expected Energy Not Supplied (EENS) is estimated and a multi-objective optimization method is applied for the system sizing. The main objective of this study is to develop strategy of renewable sources and storage sizing for resilience improvement of a weak grid. Costs of penalties are integrated to the fitness function that minimizes the cycle cost, and the results are presented and analyzed.