A Dynamic Programming Approach to Estimate the Capacity Value of Energy Storage
A Dynamic Programming Approach to Estimate the Capacity Value of Energy Storage
复制标题
估算储能容量价值的动态规划方法
DOI：
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复制
发表时间：
2014
影响因子：
6.6
通讯作者：
P. Denholm
中科院分区：
文献类型：
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作者：
R. Sioshansi;S. H. Madaeni;P. Denholm
我们提出了一种估计存储容量价值的方法。我们的方法使用一个动态规划来模拟电力系统停电对后续时段的运行和储备库荷电状态的影响。我们将动态规划的优化调度与估计的系统负荷损失概率相结合，计算出每个周期内仓库荷电状态的概率分布。在标准的基于可靠性的容量值估计方法中，该概率分布可以用作存储的强制停机率。与已有的近似方法相比，我们提出的方法具有明显的优势，它可以清楚地捕捉到系统短缺事件对后续时间段的存储电荷状态的影响。我们还使用一个基于美国五个公用事业系统的数值案例研究来演示我们的技术，并将其与现有的近似方法进行比较。
We present a method to estimate the capacity value of storage. Our method uses a dynamic program to model the effect of power system outages on the operation and state of charge of storage in subsequent periods. We combine the optimized dispatch from the dynamic program with estimated system loss of load probabilities to compute a probability distribution for the state of charge of storage in each period. This probability distribution can be used as a forced outage rate for storage in standard reliability-based capacity value estimation methods. Our proposed method has the advantage over existing approximations that it explicitly captures the effect of system shortage events on the state of charge of storage in subsequent periods. We also use a numerical case study, based on five utility systems in the U.S., to demonstrate our technique and compare it to existing approximation methods.