Pricing and remunerating electricity storage flexibility using virtual links
Pricing and remunerating electricity storage flexibility using virtual links
复制标题
使用虚拟链路的电力存储定价和报酬灵活性
DOI：
10.1016/j.compchemeng.2022.108019
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发表时间：
2022
影响因子：
4.3
通讯作者：
Zavala, Victor M.
中科院分区：
文献类型：
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作者：
Zhang, Weiqi;Tominac, Philip A.;Zavala, Victor M.
雄心勃勃的可再生能源组合标准推动了储能资源（ESR）的大规模部署，作为灵活性的来源。因此，正在积极制定电力市场的设计，适当补偿由ESRs提供的灵活性服务。在本文中，我们提出了一个新的市场清算框架，包括ESR系统。与现有的市场设计相比，我们的方法使用虚拟链路（VL）的概念对ESR系统进行建模，该虚拟链路可以捕获跨时间的功率传输/转移。VL表示法揭示了可用于ESR运营的经济激励措施，并阐明了电力市场应如何补偿ESR。我们的框架还允许我们探索ESR物理参数对市场行为的作用;具体而言，我们表明，虽然能源和电力容量定义了每个ESR可以提供的灵活性，但充电/放电效率在ESR薪酬和电网缓解市场价格波动的能力中发挥着重要作用。新的市场设计在计算上也是有吸引力的，因为它是一个线性程序，因此避免了混合整数公式和具有互补约束的公式（在当前设计中用于捕获二进制充电/放电逻辑）。我们使用我们的市场框架来分析ESRs和市场运营商之间的相互作用，并为ESRs在电网中的最佳部署策略提供见解。
Ambitious renewable portfolio standards motivate the mass deployment of energy storage resources (ESR) as sources of flexibility. As such, the design of electricity markets that properly remunerate the provision of flexibility services by ESRs is under active development. In this paper, we propose a new market clearing framework that incorporates ESR systems. Compared to existing market designs, our approach models ESR systems using the concept of virtual links (VLs), which capture the transfer/shift of power across time. The VL representation reveals economic incentives available for ESR operations and sheds light into how electricity markets should remunerate ESRs. Our framework also allows us to explore the role of ESR physical parameters on market behavior; specifically, we show that, while energy and power capacity defines the amount of flexibility each ESR can provide, charge/discharge efficiencies play a fundamental role in ESR remuneration and in the ability of the power grid to mitigate market price volatility. The new market design is also computationally attractive in that it is a linear program and thus avoids mixed-integer formulations and formulations with complementarity constraints (used in current designs to capture binary charge/discharge logic). We use our market framework to analyze the interplay between ESRs and market operators and to provide insights into optimal deployment strategies for ESRs in power grids.