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Optimal Distributed Generation Allocation Considering Power Qaulity Indices

Golzari, Hamid | 2014

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 46980 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Mokhtari, Hossein
  7. Abstract:
  8. The demand for independent power generation has been increased in recent years due to the growing demand in distributed networks, losses and power qaulity in power systems. These losses occur in transmission to distribution networks from the generation sites to the end-user loads which have harmonic losses besides fundamental losses.. The non-linear load makes the harmonics flow in the line and create the harmonic losses. However, in a distributed network with several DGs of different types and with all kinds of variable nature loads, 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. Additionally, the harmonic indecies should be in high quality in the network. This work proposes a new optimization method in which both the DGs optimal location and their generation profile according to the load demand profile are determined. This 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 assessed on the IEEE standard radial distribution network considering time-dependent 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, costs and improving harmonic indecies
  9. Keywords:
  10. Nonlinear Load ; Energy Loss ; Distributed Generation ; Time-Varying Loads ; Power Quality ; Harmonic Currents

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