Comparison of ramp-rate-based energy storage system control methods for power smoothing of PV systems

Talvi, Micke; Lappalainen, Kari (2025)
 
URI
https://www.automaatioseura.fi/julkaisut-kirjakauppa/seminaarijulkaisut/automaatiopaivat-2025-automation-days-2025/automaatiopaivat-2025-automation-days-2025-extended-abstracts/


Talvi, Micke
Lappalainen, Kari
2025

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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tuni-202603183337

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Non peer reviewed
Tiivistelmä
As the share of highly variable photovoltaic (PV) and wind power production increases, the stability of power grids may be endangered. Issues caused by power fluctuations can be mitigated with ramp rate (RR) limits and energy storage systems (ESS). In this study, 3 different RR-based power smoothing methods for ESSs of PV power plants were compared when the required size and utilization rate of the ESS were considered. This study was based on measured current–voltage curves of a small PV power plant. It was found that even a small modification to the original smoothing method affects the required size and utilization rate of the ESS significantly.
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