Determining cost-efficient controls of electrical energy storages using dynamic programming

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-02-12 DOI:10.1186/s13362-024-00140-1

Michael Stiglmayr, Svenja Uhlemeyer, Björn Uhlemeyer, Markus Zdrallek

引用次数: 0

Abstract

Volatile electrical energy prices are a challenge and an opportunity for small and medium-sized companies in energy-intensive industries. By using electrical energy storage and/or an adaptation of production processes, companies can significantly profit from time-depending energy prices and reduce their energy costs. We consider a time-discrete optimal control problem to reach a desired final state of the energy storage at a certain time step. Thereby, the energy input is discrete since only multiples of 100 kWh can be purchased at the EPEX SPOT market. We use available price estimates to minimize the total energy cost by a rounding based dynamic programming approach. With our model non-linear energy loss functions of the storage can be considered and we obtain a significant speed-up compared to the integer (linear) programming formulation.

查看原文本刊更多论文

利用动态编程确定具有成本效益的电能储存控制方法

对于能源密集型行业的中小型企业来说，电能价格的波动既是挑战，也是机遇。通过使用电能存储和/或调整生产流程，企业可以从随时间变化的能源价格中大幅获利，并降低能源成本。我们考虑的是一个时间离散最优控制问题，即在某一时间步达到所需的储能最终状态。因此，能源输入是离散的，因为在 EPEX SPOT 市场上只能购买 100 千瓦时的倍数。我们利用现有的价格估算，通过基于四舍五入的动态编程方法使总能源成本最小化。我们的模型可以考虑存储的非线性能量损失函数，与整数（线性）编程公式相比，我们的计算速度显著提高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.