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首页> 外文期刊>Automatic Control, IEEE Transactions on >Optimal Operation and Economic Value of Energy Storage at Consumer Locations
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Optimal Operation and Economic Value of Energy Storage at Consumer Locations

机译：消费者所在地储能的最佳运行和经济价值

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摘要

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.
机译：我们研究了寻求最大程度地实现长期预期收益（从能源消耗减去能源成本中获得的效用）的消费者所追求的能量存储的最佳运行和经济价值。对于将随机电价和能源需求中的跨期替代效应结合在一起的一般设置，我们通过动态规划方法建立了最佳存储操作策略的阈值结构。对于一个具有非弹性能源需求的重要特殊情况，我们证明了消费者的最大期望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，我们进一步确定了最佳存储操作问题和最小成本流问题之间的等价关系。这些结果大大简化了最佳阈值策略的（精确）计算。我们将存储（VoS）的价值定义为通过最佳操作存储而获得的消费者的净收益。我们证明，如果消费者始终可以以相同的价格（实现的价格）买卖电力，那么对于消费者而言，仅将存储用于套利是最佳选择，因此VoS并不取决于消费者的需求。

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