With the expected increase in the energy transaction of prosumers, there are increasing issues related to maintaining and improving the stability of a distribution system. The flexibility of a prosumer can be effectively used to improve the stability at much reduced cost. Most of the existing studies have separately approached energy and flexibility transactions causing inefficiency. This paper proposes a new peer-to-peer (P2P) transaction mechanism that enables both flexibility and energy transactions to be considered and balanced. In this mechanism, a P2P community has an obligation to reserve the flexibility during P2P energy transaction to ensure an intact distribution system. The prosumers can trade the flexibility among each other to avoid a penalty by securing the required amount of flexibility given by the distribution system operator. A dynamic flexibility index is proposed to quantify to represent the degree of flexibility that can be provided by a prosumer. A Stackelberg game approach using the dynamic flexibility index is modeled to solve the bidding process. The proposed mechanism is described and analyzed through a case study for prosumers with battery energy storage and photovoltaic systems. As a result of case studies, in the proposed mechanism, prosumers can maximize profits through the optimal use of energy resources and simultaneously maintain the stability of distribution systems.

随着生产者能源交易的预期增加，与维护和改善配电系统的稳定性有关的问题越来越多。生产者的灵活性可以有效地用于提高稳定性，而成本却大大降低。现有的大多数研究都分别探讨了导致效率低下的能源交易和灵活性交易。本文提出了一种新的点对点（P2P）交易机制，该机制可以同时考虑和平衡灵活性和能源交易。在这种机制下，P2P社区有义务在P2P能源交易期间保留灵活性，以确保完整的配电系统。生产者可以通过确保分配系统运营商提供的所需灵活性来相互交换灵活性，以免受到损失。提出了动态灵活性指数来量化以表示生产者可以提供的灵活性程度。对使用动态灵活性指数的Stackelberg博弈方法进行建模，以解决竞标过程。通过针对具有电池能量存储和光伏系统的生产者的案例研究，描述并分析了所提出的机制。作为案例研究的结果，在提出的机制中，生产者可以通过最佳利用能源来最大化利润，同时保持配电系统的稳定性。通过案例研究，对具有电池储能和光伏系统的生产者进行了描述和分析，提出了该机制。作为案例研究的结果，在提出的机制中，生产者可以通过最佳利用能源来最大化利润，同时保持配电系统的稳定性。通过案例研究，对具有电池储能和光伏系统的生产者进行了描述和分析，提出了该机制。作为案例研究的结果，在提出的机制中，生产者可以通过最佳利用能源来最大化利润，同时保持配电系统的稳定性。