Modelling of Battery Energy Storage System Providing FCR in
To understand whether it is possible to maintain frequency stability with BESS in the power system of Latvia, the research team conducted a case study, developed a
The modelling was performed using historic frequency data of Latvian and French power systems. The case study of BESS with charging capacity of 12 MW and stored energy volume of 7 MWh for provision of determined FCR for Latvian power system was considered.
In total, in the Latvian power system, BESS discharged 2100–2240 MWh to the network and consumed 2540–2660 MWh for charging accordingly in the studied year. The electricity required to renew the SOC accounted for only a small part of the total BESS electricity: 0.5% to 5% performing FCR overfulfillment and 7% to 20% using the deadband. Figure 8.
Since the BESS is, as seen from the power system, able to act as both a load or generator, i.e. consume or inject active and reactive power individually, these capabilities are described respectively in the LNs DLOD and DGEN.
Accommodating novel and state-of-the-art BESS coordination and protection capabilities. Furthermore, such a coordination scheme could be utilized to efectively connect multiple VMS and other mobile BESS in an efective manner, for an interoperable coordinated mobile system DER.
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