Peer-to-peer Energy Transaction Incorporating Prosumers' Tendency with load and PV uncertainty consideration

Residential microgrids consist of consumers and prosumers. In this microgrid consumers tend to reduce their energy costs. However, in microgrid that incorporates peer-to-peer capabilities, prosumers could have different objectives. In this way, prosumers can also increase their energy sales to consumers in addition to reducing their energy costs. Therefore, in the presented approach prosumers predetermined their energy sales to reduce their cost or increase their energy sales to the consumers. In this study, a hierarchical approach is presented to consider the energy transaction and prosumers' objectives. Initially, the self-scheduling of prosumers to determined their transacted energy is presented. Subsequently, through the consideration of energy sharing, the maximization of societal welfare is pursued. Moreover, the sensitivity analysis is utilized to evaluate the effect of load and photovoltaic panel output power uncertainties on the obtained results. The proposed method is investigated in a test residential microgrid with 40 units, which includes 20 prosumers and 20 consumers. The simulation is conducted utilizing Mixed-Integer Linear Programming (MILP) within the GAMS, employing the CPLEX solver. According to the obtained results, by changing the load and output power of PVs, the benefit earned by prosumers changes. However, prosumers intending to reduce their costs have earned greater benefits than those aiming to increase their energy sales.