A Multi-Regional Coordinated Peer-to-Peer Energy Trading Market Mechanism in Distribution Networks

Regional distribution network operation can be conducive for privacy protection, efficient calculation, grid modularity, and network scalability, which awfully tally with decentralized energy trade mechanism—peer-to-peer (P2P) market. This article proposes a multi-regional coordinated P2P energy trading market mechanism to achieve consensus by exchanging coupled information. At the regional grid level, lower level distribution systems operators (DSOs) coordinate the P2P market and ancillary service to attain market clear according to the coupled information shared by adjacent regions, such as the distribution locational marginal prices} {(DLMPs) and voltage of regional slack bus. In distribution grid levels, each region achieves consensus upon power flow by alternating direction method of multipliers (ADMM). The distribution grid model is established by Distflow-based linearized model and sensitivity factors to eliminate the higher nonlinearities in power flow. Finally, the case studies demonstrate the economic efficiency of the proposed multiregional market mechanism.