基于博弈论的区域小水电虚拟电交易研究

区域间能源资源分布不均衡和经济发展及电力消费水平的不均衡,导致小水电生产的大量优质低价电能需要通过大网外售;而地方电网公司和省级电网公司的利益冲突,导致电力外送困难,未达到资源的优化配置。在虚拟电概念基础上,通过博弈建模,分析省级电网公司、大用电工业企业和代表小水电的地方电网公司三方的利益关系;通过模型求解得出,当小水电销售价格低于国网电价一定程度,且电力可靠性相差不大时,通过虚拟电交易不仅能引入竞争解决低价电售电难的问题,而且能促进地方电网提高其电力可靠性及安全性,并提高电力资源利用效率和优化电力资源配置。算例结果表明:虚拟电交易是解决当前电力资源优化配置和合理利用的有效途径。

Research on Virtual Electricity Trade of Regional Small Hydropower Based on Game Theory

With the unbalanced distribution of regional resources and the imbalance in economic development and electricity consumption,a large amount of electricity with high quality and lower price from small hydropower can only sell out through large power grid.And the conflicts between local and provincial power grid make the electricity with lower price from local small hydropower difficult to be sold out,leading to the non-optimal allocation of resources.The term of "virtual electricity" is proposed and it is believed that it is an effective way for the optimal allocation and rational utilization of electricity resources by developing virtual electricity trade.A game-based model is set up to analyze the profit relationships among local power grids,provincial power grid corporations and major electricity customers.The result of solving the model shows that when the selling price of small hydropower lowers to a certain extent and the reliability differs a little from provincial power grid,the virtual electricity trade not only can solve the problem of difficult-selling of electricity with lower price,but also can promote the reliability and safety of local electric power grids and improve the utilization efficiency of small hydropower resources.