Mechanism for Energy Sharing of Electric Vehicles Incorporating Supply-Demand Ratios and Subject Preferences

The participation of electric vehicles (EVs) in energy sharing can satisfy the energy sharing demand of the grid and optimize local resource allocation. Considering that local energy sharing is limited by the high threshold of access to the traditional electricity market and the difficulty of determining the sharing price, this paper proposes a mechanism for EV energy sharing that takes into account the supply-demand ratio and the subject preference. First, EVs participate in the energy sharing framework, which consists of a trading layer, a scheduling layer, and a physical layer. Second, the Takagi-Sugeno-Kang (TSK) fuzzy model is used to quantify the degree of subject preference of EVs for energy sharing and construct a model of EV shareable capacity. Then, the supply-demand ratio-based sharing price is designed and the supply-demand ratio-based energy sharing model is proposed. Finally, the effectiveness of the model proposed in this paper is verified by an improved IEEE 33-node system.