P2P2G Coordinated Energy Sharing in Grid-Interactive Transactive Systems

Recently, the rapid deployment of renewable energy resources in distribution networks has led to a paradigm shift in the modern power system wherein the traditional electricity consumers become energy-sharing-capable active prosumers (producer+consumer). This paper presents a peer-to-peer-to-grid (P2P2G) energy trading system for prosumer-centric local electricity markets. We developed a coordinated transactive energy management strategy for grid-interactive prosumers with iterative distribution locational marginal pricing (iDLMP) scheme. Firstly, we designed a network-constrained cost minimization problem in a residential power network and solved it in a distributed manner using the Alternating Direction Method of Multipliers (ADMM) algorithm. Secondly, a non-cooperative energy pricing game is formulated at the Rosen-Nash equilibrium point and solved by Nikaido-Isoda relaxation and ADMM algorithms. The effectiveness of the proposed scheme has been validated in an IEEE 14-bus distribution system through simulations.