Distributed Optimization Operation of Multimicrogrid with Electricity-Carbon Trading

This paper proposes a distributed optimization operation method for multi-microgrids (MMGs) with electricity-carbon trading. First, a bi-level cooperative dispatch model of distribution networks and MMGs is established. The distribution locational marginal price (DLMP) is used to guide MMGs participating in electricity trading. Second, the ladder carbon trading is introduced in MMGs to achieve low carbon production. The alternating directional multiplier method (ADMM) is applied to calculate the proposed lower model and coordinate peer-to-peer (P2P) electricity trading among MMGs. Finally, the upper and lower models are solved iteratively based on the information of pass-through trading quantities and DLMP between the distribution network and MMGs, which realizes the coupling electricity-carbon trading of the MMGs as well as reflects the win-win situation of both low-carbon and economic aspects.