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A Decision Framework for Participation of Electric Vehicles in Vehicle-to-Grid (V2G) Considering Players' Utility

Sarparandeh, Mohammad Hossein | 2018

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  1. Type of Document: Ph.D. Dissertation
  2. Language: Farsi
  3. Document No: 50822 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Ehsan, Mehdi
  7. Abstract:
  8. The inevitable emergence of electric vehicles into the transportation industry in the near future can be a potential challenge or an opportunity for the power system. Vehicle-to-Grid can provide services for microgrids and the electricity market. The players of the game for participation of electric vehicles in microgrid or electricity market are vehicle owners, microgrid operators, and the aggregators. The formation and continuation of this interaction requires the interests of all institutions involved in the subject to be considered. Since there has not yet been an established conceptual or executive framework for the utilization of these vehicles in Vehicle-to-Grid idea considering players' utility in the literature, this thesis has tried to take a few steps in this regard. The items to be scrutinized in this area include: the quality of the interaction between vehicle owners and the microgrid operators/the aggregators on operation and scheduling of the battery charges, the pricing of Vehicle-to-Grid service and the money paid to vehicle owners for the service. In this thesis, two approaches have been introduced to enter the electric vehicles into the power supply industry. In the first approach, the electric vehicles are utilized by the microgrid operator as distributed storage to balance the intermittent power of renewable generations. This interaction does not have a competitive nature and therefore, the interaction between the players and the pricing scheme has been modeled by Nash bargaining game. The second approach is somehow similar to a competitive retail market where the aggregators try to offer an appropriate price to encourage the vehicle owners all over the bulk grid to contract for providing Vehicle-to-Grid service. The frequency regulation market has been considered as the target market for Vehicle-to-Grid due to its profitability. According to the competitive nature of the second approach, the deman/supply theory has been used to model the interaction and pricing scheme. For both approaches, the quality of interaction between players has been introduced and a pricing model has been proposed. The models have been implemented on two case studies and the results have been analysed. Since the goal of the thesis is to propose a basic framework for policy making neglecting the details of the implementation of a road map, the term “decision framework” has been used instead of the “implementaion framework”
  9. Keywords:
  10. Vehicle to Grid (V2G) ; Aggregator ; Microgrid ; Game Theory ; Electrical Vehicle ; Power Market

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