The thesis discusses the development of a simulation model for a lithium-ion battery and the
modelling of an energy storage system.
In the introductory chapters, various battery technologies are reviewed and compared, based on
which lithium-ion batteries are selected to be used in the storage system. The operating principle
of these batteries is then analysed, along with their construction and operational characteristics.
Possible dangers are also highlighted. As a result, a detailed mathematical equivalent circuit
model for a lithium-ion battery cell is derived.
A study on battery energy storage systems is conducted, which encompasses the functionalities
its various components and their construction. The integration of these storage systems into
existing networks and their operation in combination with renewable energy sources is also
reviewed. This represents one of the primary ways to use battery energy storage systems in the
development of electrical networks to reduce climate impacts.
The process of creating a simulation model for a lithium-ion cell is described, accompanied by
testing and validation of this model in the MATLAB/Simulink environment. This model is then
used in the simulation of an energy storage system. The development of battery management
system is included, ensuring the safe operation of the storage system and protecting it from
damages and faults.
Testing is needed to ensure the reliability of the model. Numerous characteristics of the model
are examined under various operational conditions. Additionally, the functionality of the battery
management system is thoroughly tested.
Both the cell model and the management system model prove to be reliable, offering realistic
simulations of the battery energy storage system's operation.
|
