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Optimal Distributed Generation Allocation and Sizing Considering Operation Indices

Ghanbari, Niloofar | 2014

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 45936 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Mokhtari, Hossein
  7. Abstract:
  8. The need for independent power generation has been increased in recent years with the growing demand in micro grid systems. Losses in power systems are unavoidable. These losses occur in transmission to distributionnetworks from the generation sites to the end-user loads. Reduction of power losses has been one of the reasons for engineers to be attracted by micro grid systems which include small size independent power generation units. However, in a micro grid with several DGs of different types and with all kinds of loads of variable nature, an optimal power balance in the system has to be achieved. This optimal objective, which results in minimal energy losses over a specific period of time, requires an optimal location and sizing of the DGs in a micro grid. This work proposes a new optimization method in which both optimal location of the DGs and their generation profile according to the load demand profile are determined. The method is based on minimizing simultaneously the cost of investment and operation of the DGs, the cost of power delivered by the external grid as well as the cost of power losses in the network. The proposed method is tested on the IEEE standard radial distribution network considering time-varying loads.In order to evaluate the capability of the proposed method to solve operating and planing problems of the distribution networks, the method is used in different operating conditions with the objective of minimizing both energy losses and costs
  9. Keywords:
  10. Energy Loss ; Distributed Generation ; Optimal Placement ; Time-Varying Loads ; Daily Load Profile

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