Optimal operation of PV prosumer-based community considering carbon credit and energy sharing

With the rapid development of distributed photovoltaics (PV), traditional consumers have gradually evolved into prosumers. In order to promote the local consumption of PV power and improve the enthusiasm of traditional consumers for low-carbon transformation, a PV prosumer-based community operation model considering carbon credit and energy sharing is proposed. Firstly, based on the Nash bargaining theory, a multi-prosumer energy sharing model is established. The model can be transformed into a sub-problem of community cost minimization and a sub-problem of cooperative income distribution, which is solved by the alternating direction multiplier method (ADMM) algorithm. Secondly, to quantify environmental value of PV power, the carbon credit mechanism is introduced, and a combinatorial double auction trading mechanism with the objective of maximizing social welfare for carbon credit portfolios is proposed. Finally, the validity of the model is verified through examples. The simulation results show that the proposed model can reduce the total cost of the prosumer community by about 20.21 %.