一种基于预测电价的水电站报价方法研究

在电力市场中,水电站需要统筹安排调度期内各时段的用水量,并最终将这些信息转换为电站的竞价策略,从而使电站获得最大的发电效益.文中给出了一种基于预测电价的水电站出力报价方法,将水电站的竞价问题描述为期望售电收入最大问题,建立了水电站的竞价模型,模型能够协调各时段的用水量以及用水量与报价的关系,满足电站的可用水量约束,并以出力-报价形式实现电站的优化运行.最后通过一个具体的算例对模型进行了检验,其结果说明了该方法的合理性.

Case Study of Bidding Strategy Based on Forecasted Electricity Market Prices for Hydropower Plants

The optimal water discharge plan could be reached only when it was scheduled with consideration of the whole horizon concerned, which is a challenge for a hydropower plant as an independent power provider to convert these information to its bidding strategy so as to maximize its generation profits in the electricity market. This paper presents a bidding model, based on forecasted market price, for hydropower plant to bid for its generation. The bidding problem is described as a problem of maximal expected income of the plant with a given amount of water during the period concerned. Finally, a concrete example is given in detail to validate the practicability of the model and algorithm.