Negotiation strategyfor discharging price of EVs based on fuzzy Bayesian learning

摘要

To stimulate the participation of electric vehicles (EVs) in vehicle-to-grid (V2G) activities, some economic incentives should be offered to the EV owners and the discharging price is negotiated by EV aggregator and electricity grid. Here, this study proposes a negotiation strategy between EV aggregator and electricity grid which focuses on how to develop a reasonable mechanism for discharging price, and then the bilateral negotiation function models of discharging price based on fuzzy Bayesian learning are established. In the models, the certain parameters are calculated according to the profits and cost of the EV aggregator and electricity grid; and the fuzzy probability calculation method is formulated to estimate and calculate the uncertain parameters of the functions of both sides, respectively. Additionally, the negotiation function models based on fuzzy Bayesian learning is utilised for updating and correcting the deviation of estimates and the discharging price is finally found out by the parameters above. Through numerical cases, the negotiation strategy proposed in this study is verified to be effective in the early promotion of V2G.