基于合作博弈论的光伏微电网群交易模型

摘要

The trade between grid connected photovoltaic (PV) microgrid and distribution network is the most common market transaction mode. In this paper, a market trading model based on cooperative game theory is proposed for the PV microgrid cluster. A certain part of information sharing between PV microgrids in clusters is achieved by intelligence communication and control system. A cooperation alliance of PV microgrids is built allowing the microgrid with surplus power to share the excess power with other microgrids under power shortage, which can promote the whole income of the alliance. In this paper, the Shapley value method is used to distribute the income of the alliance, and a rule of real time transaction settlement is proposed based on the microgrid sub-income size. This rule could be applied in the transaction settlement between microgrids, or between microgrid and distribution network. The effectiveness of the proposed model is verified by case simulations.%并网型光伏微电网直接与配电网交易是最常见的市场交易模式.针对光伏微电网群,提出一种基于合作博弈论的市场交易模型,通过智能通信、控制系统实现光伏微电网群之间的部分信息共享,建立光伏微电网群的合作联盟,使有余电的微电网能量与缺电的微电网能量互用,提高联盟整体收益.采用 Shapley 值法对联盟收益进行分配,并根据微电网所分收益大小提出一个实时交易结算规则,完成微电网与微电网、微电网与配电网的交易结算.仿真算例证明了该模型的有效性.