In an active distribution network (ADN), energy trading behavior is a key factor that affects the microgrid’s (MG’s) respective operating costs. To ensure that MGs achieve as more operating benefits as possible, this paper proposes a cooperative trading (CT) model that is based on cooperative game. A specific trading mechanism is designed to maximize the total cooperative gains and a comprehensive method is proposed to allocate the total gains among MGs. Theoretical analysis and computational simulation convinced that the proposed CT model is more efficient than direct trading to improve both the total gains and individual gains of MGs. Due to the trading efficiency and the fairness of gain allocation, the proposed method makes the coalition of MGs easy to expand, and keeps the MGs’ long-term incentives to participate in trading.

在主动配电网（ADN）中，能源交易行为是影响微电网（MG）各自运营成本的关键因素。为了确保MG尽可能获得更多的运营收益，本文提出了一种基于合作博弈的合作交易（CT）模型。设计了一种特定的交易机制，以使总的合作收益最大化，并提出了一种综合的方法来在各大企业之间分配总收益。理论分析和计算仿真结果表明，所提出的CT模型比直接交易更有效，可以提高MG的总收益和个人收益。由于交易效率和收益分配的公平性，所提出的方法使MG的联盟易于扩展，并保持了MG参与交易的长期动机。