Effects of Battery Aging on BESS Participation in Frequency Service Markets - Finnish Case Study

Khajeh, Hosna; Parthasarathy, Chethan; Laaksonen, Hannu (2022-10-20)
 
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URI
https://doi.org/10.1109/EEM54602.2022.9921139

Khajeh, Hosna
Parthasarathy, Chethan
Laaksonen, Hannu
IEEE
20.10.2022
doi:10.1109/EEM54602.2022.9921139
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https://urn.fi/URN:NBN:fi-fe2022110264442

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Tiivistelmä
Increasing share of intermittent inverter-based renewable power is being integrated into the power systems. This affects the power system dynamics and frequency stability. As a result, the systems need more resources that provide frequency control related technical services. In this regard, this paper proposes the participation of a Lithium-ion Battery Energy Storage System (Li-ion BESS) in providing frequency containment reserve for normal operation (FCR-N). The Li-ion BESS reacts to the frequency deviations from 0 to 0.1 Hz and -0.1 to 0 Hz in FCR-N operations. In addition, the paper presents a method to schedule the charging and discharging power of BESS while considering the effects of BESS cycling aging. In the simulation section, a 50 kWh BESS is supposed to react to the three-minute frequency changes and the corresponding outcome is estimated for three months. At the end, the paper assesses whether the cycling aging affects the BESS economic outcome when it provides FCR-N service.
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