Communication BESS Power Station Franchise Agent

Measurements of battery energy storage system in conjunction with the PV system. Even though a few additions have to be made, the standard IEC 61850 is suited for use with a BESS. Since they restrict neither operation nor communication with the battery, these modifications can be implemented in compliance with the standard.

The system is built of two main blocks. The PCS building block, responsible for the main control of the mobile BESS. The nominal power rating of the PCS block is 225 kVA, with a maximum peak power in the peak shaving mode of 275 kW . The second block is the modular battery pack.

BESS plays a crucial role in optimizing energy use, enhancing grid reliability, and enabling the integration of renewable energy sources into the power grid by smoothing out fluctuations in energy production and consumption. Why is networking of the different components in a BESS system important?

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.

This thesis project, carried out at Northvolt Systems, aims to analyze the existing and readily used communication interfaces for a specific set of mobile BESS applications. The analysis is performed by a literature review of typical mobile BESS applications with the identified corresponding communication interfaces.

The mobility and flexibility of the system enables novel applications and deployments where BESS previously were unused due to the non-flexible solutions. The system is modular, meaning that the energy storage capacity can be quickly adapted depending on the application case, in contrast to larger and bulkier solutions.