基于博弈论的多微电网系统交易模式研究

A Game-theoretic Approach to Analyzing Power Trading Possibilities in Multi-microgrids

提出了采用非合作博弈研究多微电网交易模式的一般模型及分析方法。将配电网对微电网之间交易的影响以征收服务费用的方式加以考虑,在给定的交易规则下建立了非合作博弈模型;证明了该博弈存在纳什均衡,并提出了相应的求解流程。以3个微电网构成的多微电网系统为例进行算例分析,解释了纳什均衡的物理意义;研究了各参数对纳什均衡点的影响,得出了微电网之间发生交易的条件及影响因素。文中提出的模型和结论均具有一定普适性,可定量分析配电网、政府的各类调控手段对微电网之间交易的影响,为预测多微电网系统的发展方向并提出管理措施提供了理论依据。

A non-cooperative game-theoretic method to study microgrid-based trading modes in multi-microgrid system was proposed. Considering the influence of the distribution system on microgrids trading as extra charges, a non-cooperative game-theoretic model was set up under the trading rules. The existence of Nash Equilibrium（NE） was proved mathematically, and simulation method based on the definition of NE was put forward. A three-microgrid case was studied, and simulation results were analyzed. The effects of different parameters on NE were presented, and conclusions such as conditions on which the system tends to be in loose-community mode or pure-microgrid mode were drawn. This paper presented a systemic process to study trading in multi-microgrids based on game theory, and the model and the conclusions could be applied in many other situations. The work also discussed how distribution system and government could affect trading in multi-microgrids quantitatively, which might provide academic basis for forecasting multi-microgrids development and proposing encourage management measures.