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Residential Demand Response Coordination in Low Voltage Distribution Feeder with High Penetration of Solar Energy

Mahroo Bakhtiari, Reza | 2019

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 52042 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Safdarian, Amir
  7. Abstract:
  8. In recent years, due to improved quality and lower solar panel prices, the use of this renewable energy source in the world has increased dramatically. The proliferation and expansion of the solar panels in the distribution systems, at the time when the solar energy production reaches its maximum value, increases the voltage at the end of the low voltage feeder. This issue cause limitations on the installed photovoltaic capacity in the system. So far, several methods have been proposed to overcome this problem and increase the installed photovoltaic capacity. Demand response is one of the proposed methods. This thesis, with upgrading one of the proposed methods provides a model to make coordination between residential loads to increase the installed solar energy capacity and prevent excessive overvoltage resulting from high solar energy. In this regard, two decentralized solution models are introduced. The purpose of the two models is to reduce the lost solar energy when the overvoltage occurs in the distribution system. In the proposed methods, it is assumed that the distribution system operator has signed a contract with its consumers. Under the contract, the distribution system operator is able to control the controllable loads and respond to home-grown customers in emergencies. Consumers entered into this program provide technical information related to the responsive devices as well as provide their operator with the limits of their welfare guarantees. The proposed models are implemented on a sample network and their performance is evaluated. According to the results, using demand response and proposed model can reduce the overvoltage problems caused by high photovoltaic penetration and the installed photovoltaic system capacity can be increased
  9. Keywords:
  10. Demand Response ; Low Voltage Feeder ; Solar Energy ; Domestic Customers ; Decentralized Model ; Dentzig-Wolfe Decomposition ; Benders Decomposition

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