A Robust Centralized Peer-to-Peer Energy Trading in the Energy Community

Microgrids have been developing nowadays as an initiative aiming to operate modern power distribution systems more reliably and efficiently. With the decreasing price of battery energy storage systems (BESSs), BESSs are highly recommended to be exploited in the operation of microgrids in the distribution network system. The advancements in BESS, increasing trends of distributed generation, and proliferation of the prosumer community require effective energy utilization in the microgrid paradigm. The Peer-to-Peer (P2P) energy trading mechanism establishes a marketplace where prosumers can engage in energy transactions, reduce energy consumption costs and increase resilience. However, it leads to a complicated problem particularly when multi-energy systems participate the energy trading. In previous studies, P2P trading models have been primarily considered with only prosumers possessing renewable energy resources. However, it is believed that dynamic components such as BESS and the Distribution System Operator (DSO) will continue to have a significant role in the Local Energy Market (LEM). This paper therefore proposes a trading model in a prosumers-based P2P in the LEM that includes several local energy providers and pure energy consumers, in addition to a market community coordinator which is namely a P2P market manager (P2PM). In the proposed market model, each prosumer is considered a market participant, who tends to negotiate with each other in a way that follows their benefits. Each prosumer has a different distributed generator photovoltaic (PV), wind turbine, and storage unit to satisfy its load demand. To handle the market clearing and energy balance problem, the P2PM is responsible for the implementation of functions for the centralized problem of the P2P model. The results of two different cases for the proposed LEM scheme are compared to verify the effectiveness of the solution.