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Developing a Framework for Assessment and Optimal Enhancement of Multi-Microgrid Distribution System Reliability

Omri, Mahsa | 2022

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 54949 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Abbaspour, Ali; Fotuhi Firuzabad, Mahmud
  7. Abstract:
  8. Issues related to the environmental pollution, greenhouse gas emissions, as well as the limited supply of fossil fuels and their rising prices have led to the deployment of distributed energy technologies in power systems. With the increasing penetration of distributed energy sources in distribution systems, smart grids, and in particular, microgrids have emerged as a suitable and widely accepted solution for controlling and utilizing these resources. Microgrids can enhance energy efficiency in a sustainable power grid as well as the reliability of the distribution system, through supporting high penetration of renewable energy sources and providing island performance.In view of growing demand and dependency on electricity, the need to achieve an acceptable level of reliability has become a critical issue for power system operators. Given that most of the failures and contingencies that lead to customer power outages are related to the distribution systems, studies on the distribution system reliability with a view to improving the quality of services provided to clients are of great importance. On the other hand, the evolution of distribution systems towards smarter and active grids and the integration of microgrids into them have made the reliability assessment of such systems challenging. Therefore, in this research, in the first stage, a model for the reliability assessment of microgrids from the standpoint of the distribution system is presented. Then, using the proposed model, an analytical framework for evaluating the reliability of distribution systems in the presence of microgrids is provided. Modeling and analyzing microgrids using the proposed methodology result in the simplification and acceleration of computations associated with the reliability assessment of the distribution system. Finally, using the method developed for assessing the distribution system reliability, a framework is presented for the optimal enhancement of the distribution system reliability.
  9. Keywords:
  10. Microgrid ; Distribution System ; Reliability ; Monte Carlo Simulation ; Optimization ; Distribution Networks Planning ; Energy Distribution

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