<p>Multi-microgrids (MMGs) can achieve collaborative sharing and efficient utilization of resources. Aimed at the issues of energy trading, low-carbon operation, and benefit distribution in the process of MMGs cooperation due to the fact that each microgrid (MG) belongs to a different stakeholder, this article proposes a peer-to-peer(P2P) cooperative trading model of MMGs based on asymmetric Nash bargaining in the market for carbon emission trading (CET)—green certificate trading (GCT). Firstly, to explore functional differences between industrial, commercial, and residential microgrids, an interactive operation and trading architecture for the MMGs is proposed. Secondly, the CET-GCT collaborative mechanism is introduced to facilitate the absorption of renewable energy by converting surplus green certificates into carbon quotas. Then, a MMGs P2P cooperative trading model based on asymmetric Nash bargaining theory is constructed, which is decoupled into two subproblems: minimizing coordination costs and fairly distributing benefits, and is solved by adopting an adaptive step alternating direction method of multipliers (AS-ADMM) to improve the solution efficiency. Meanwhile, in the process of solving subproblem 2, this paper allocates the cooperative benefits by quantifying the contribution of each MG to enhance the stability of the cooperative alliance. Finally, several case studies are set up to verify the rationality and effectiveness of the proposed model.</p>

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Multi-microgrids peer-to-peer trading strategy based on asymmetric Nash bargaining in CET-GCT market

  • Yongsheng Zhu,
  • Shibo Zhang,
  • Qiying Xu,
  • Yanhong Meng,
  • Junlin Yang,
  • Yang Liu

摘要

Multi-microgrids (MMGs) can achieve collaborative sharing and efficient utilization of resources. Aimed at the issues of energy trading, low-carbon operation, and benefit distribution in the process of MMGs cooperation due to the fact that each microgrid (MG) belongs to a different stakeholder, this article proposes a peer-to-peer(P2P) cooperative trading model of MMGs based on asymmetric Nash bargaining in the market for carbon emission trading (CET)—green certificate trading (GCT). Firstly, to explore functional differences between industrial, commercial, and residential microgrids, an interactive operation and trading architecture for the MMGs is proposed. Secondly, the CET-GCT collaborative mechanism is introduced to facilitate the absorption of renewable energy by converting surplus green certificates into carbon quotas. Then, a MMGs P2P cooperative trading model based on asymmetric Nash bargaining theory is constructed, which is decoupled into two subproblems: minimizing coordination costs and fairly distributing benefits, and is solved by adopting an adaptive step alternating direction method of multipliers (AS-ADMM) to improve the solution efficiency. Meanwhile, in the process of solving subproblem 2, this paper allocates the cooperative benefits by quantifying the contribution of each MG to enhance the stability of the cooperative alliance. Finally, several case studies are set up to verify the rationality and effectiveness of the proposed model.