计及电价高峰补偿机制的光储联合系统日前–日内协同优化运行策略

A Day-ahead and Intra-day Collaborative Optimization Operation Strategy for Integrated Photovoltaic and Energy Storage Systems Considering Peak Electricity Price Characteristics

  • 摘要: 光伏电站配置储能可以减少弃光和跟踪考核成本,同时储能可利用其电能储存的优势实现能量搬运,增加电站收益。针对日内滚动调度存在的“短视”问题,提出了一种计及高峰电价补偿机制的日前–日内多时间尺度优化运行策略。首先,分析了储能系统与光伏电站联合运行模式和“短视”问题的主要成因;在此基础上,建立了引入电价高峰补偿机制的日前–日内多时间尺度优化调度模型;最后,以黑龙江某光储一体化实验基地实际数据为基础进行验证,结果表明,该模型能够有效改善日内滚动阶段的“短视”问题,提高电站运行收益。

     

    Abstract: The configuration of energy storage in photovoltaic power stations can reduce the costs associated with solar power curtailment as well as those for tracking and assessment. At the same time, the advantages of energy storage can be utilized to achieve energy transportation and increase the revenue of the power station. In this paper, we propose a multi-time-scale optimization operation strategy that incorporates the peak electricity price characteristics to address the "short-sightedness" problem in intraday rolling scheduling. Firstly, the main influencing factors of the joint operation mode of energy storage systems and photovoltaic power stations, as well as the "short-sightedness" problem, are analyzed. On this basis, a multi-time-scale day-ahead and intra-day optimization scheduling model is established, taking into account the characteristics of peak electricity prices. Finally, based on actual data from a solar energy storage integrated experimental base in Heilongjiang, the model is validated. The results demonstrate that the proposed model can effectively address the "short-sightedness" issue during the rolling stage of the day and increase the operating revenue of the power station.

     

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