Green electricity becomes an inevitable trend to reduce carbon emissions. However, green certificate issuance based on power generation amounts restricts microgrids to participate in regional green electricity trading. In this context, a green electricity trading-driven low-carbon sharing approach for interconnected microgrids (IMG) is proposed. First, a new green electricity peer-to-peer (P2P) trading mechanism for regional IMG is proposed, where the energy sharing profile of each microgrid (MG) can be flexibly managed based on the interest. And the Nash equilibrium theory based on a non-cooperative game is applied to determine the trading capacity. Second, we define the green electricity value generated by P2P trading of renewable energy among IMG systems, where the green electricity value includes the value of traded green electricity, reduced carbon emission cost, and renewable energy subsidies. Especially, environmentally friendly factors are proposed to allocate the green electricity value between the buyer and seller, which can guide MGs to improve their energy composition and reduce carbon emissions. Third, a decentralized energy management approach is introduced to coordinate energy transactions among IMG systems based on the alternating direction method of multipliers (ADMM). The simulation analysis shows that the green electricity trading mechanism can reduce energy costs, carbon emissions and promote the consumption of green electricity.

绿色电力成为减少碳排放的必然趋势。然而，基于发电量的绿色证书颁发限制了微电网参与区域绿色电力交易。在此背景下，提出了一种用于互联微电网（IMG）的绿色电力交易驱动的低碳共享方法。首先，提出了一种新的区域 IMG 绿色电力点对点（P2P）交易机制，可以根据利益灵活管理每个微电网（MG）的能量共享配置文件。并且应用基于非合作博弈的纳什均衡理论来确定交易能力。其次，我们定义了IMG系统间可再生能源P2P交易产生的绿电价值，其中绿电价值包括交易的绿电价值，降低碳排放成本和可再生能源补贴。特别是，提出环境友好因素在买卖双方之间分配绿色电力价值，这可以引导MG改善其能源构成并减少碳排放。第三，基于交替方向乘数法（ADMM），引入分散式能量管理方法来协调 IMG 系统之间的能量交易。仿真分析表明，绿色电力交易机制可以降低能源成本、碳排放，促进绿色电力消费。这可以指导 MGs 改善其能源结构并减少碳排放。第三，基于交替方向乘数法（ADMM），引入分散式能量管理方法来协调 IMG 系统之间的能量交易。仿真分析表明，绿色电力交易机制可以降低能源成本、碳排放，促进绿色电力消费。这可以指导 MGs 改善其能源结构并减少碳排放。第三，基于交替方向乘数法（ADMM），引入分散式能量管理方法来协调 IMG 系统之间的能量交易。仿真分析表明，绿色电力交易机制可以降低能源成本、碳排放，促进绿色电力消费。