Optimal Operation and Economic Value of Energy Storage at Consumer Locations
Optimal Operation and Economic Value of Energy Storage at Consumer Locations
复制标题
消费者所在地储能的优化运行和经济价值
DOI：
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发表时间：
2017
影响因子：
6.8
通讯作者：
L. Tong
中科院分区：
文献类型：
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作者：
Yunjian Xu;L. Tong
我们研究了消费者所操作的储能的最佳运行和经济价值，该消费者寻求最大化长期预期回报（从能源消耗减去能源成本中感知到的效用）。对于包含随机电价和能源需求的跨期替代效应的一般设置，我们通过动态规划方法建立了最优存储操作策略的阈值结构。对于能源需求缺乏弹性的重要特例，我们证明消费者的最大预期收益在存储水平上是分段线性的；在需求和价格都是确定性的附加假设下，我们进一步建立了最优存储操作问题和最小成本流问题之间的等价性。这些结果显着简化了最佳阈值策略的（精确）计算。我们将存储价值（VoS）定义为消费者通过优化运营存储而获得的净收益。我们表明，如果消费者总是能够以相同的（实现的）价格买卖电力，那么消费者最好仅将存储用于套利，因此 VoS 不依赖于消费者的需求。
We study the optimal operation and economic value of energy storage operated by a consumer who seeks to maximize long-term expected payoff (utility perceived from energy consumption minus energy cost). For a general setting that incorporates random electricity prices and the intertemporal substitution effect in energy demand, we establish a threshold structure for optimal storage operation policies through a dynamic programming approach. For an important special case with inelastic energy demand, we prove that the consumer’s maximum expected payoff is piecewise linear in the storage level; under an additional assumption that both the demand and prices are deterministic, we further establish the equivalence between the optimal storage operation problem and a minimum cost flow problem. These results significantly simplify the (exact) computation of optimal threshold policies. We define the value of storage (VoS) as the consumer’s net benefit obtained by optimally operating the storage. We show that if the consumer can always buy and sell electricity at the same (realized) price, then it is optimal for the consumer to use the storage only for arbitrage, and therefore the VoS does not depend on the consumer’s demand.