The Effect of Temporal Aggregation on Battery Sizing for Peak Shaving

Autor: Dominik Werle, Daniel Warzel, Klemens Böhm, Anne Koziolek, Simon Bischof, Holger Trittenbach
Rok vydání: 2019
Předmět:
Zdroj: e-Energy
Popis: Battery systems can reduce the peak electrical consumption through proper charging and discharging strategies. To this end, consumers often rely on historic consumption data to select a cost-efficient battery system. However, historic data is an imperfect mapping of the real consumption, because of a coarse sampling rate or measurement inaccuracies. This can result in non-optimal decisions, e.g., by underestimating the battery capacity required. In this article, we analyze how aggregation affects a state-of-the-art battery sizing algorithm for an industrial production site. We then use machine learning on a short period of high-resolution data to correct this error from historic data. Our experiments indicate that machine learning models can correct this error in some cases. However, adding a safety margin obtained from historic data to the battery size is a more reliable way of reducing the error.
Databáze: OpenAIRE