基于合作-非合作博弈的光储荷网协同运行策略

COOPERATIVE OPERATIONAL STRATEGIES OF PHOTOVOLTAIC, ENERGY STORAGE, LOAD AND POWER GRID BASED ON COOPERATIVE AND NON-COOPERATIVE GAME

针对光伏发电主体与电力用户进行电力直接交易的问题,利用合作-非合作两阶段博弈理论,对光储荷组成的微网系统与电网协同运行的过程展开优化调度和协商议价两阶段的研究。第一阶段通过优化调度提高联盟收益,针对微电网运行特性搭建数学模型,采用交替方向乘子法以避免在交易过程中出现电量由于叠加作用而相互抵消的情况,利用合作博弈得到调度结果;第二阶段首先分析电价对交易模式的影响,搭建光伏发电主体与用户协商议价模型,在天牛须搜索算法的基础上进行改进,采用与自适应矩估计相结合的讨价还价模型,利用非合作博弈分配收益得到最优交易电价。最后通过算例验证模型的可行性,结果表明所搭模型在提高微网收益的同时,通过市场的引导作用提升光伏消纳水平。

In this paper,a two-stage cooperative-noncooperative game theory is used to study the problem of the optimizing power dispatch and negotiating tariff for the cooperative operation of the microgrid system which is composed of photovoltaic power generation and power consumers.Firstly,in the first stage,the overall revenue of the alliance is improved by optimizing the power dispatch,then a mathematical model is built for the operating characteristics of the microgrid,ADMM is adopted to avoid the situation that the electric quantities cancels each other due to the effect of superposition in the trading process due to the superposition effect,and the dispatch results are obtained by using cooperative game.Secondly,in the second stage,the impact of trading tariff on the trading model is analyzed,and a bargaining model is built between photovoltaic power generation and power consumers,and the BAS algorithm is improved,a bargaining model combined with adaptive moment estimation is adopted and to the optimal trading tariff is obtained by using non-cooperative game to allocate the revenue.Finally,the feasibility of the model is verified by arithmetic examples,and the results show that the level of PV consumption can be improved by using the built model through market guidance while improving the revenue of microgrid.