Abstract:
Renewable based DC microgrids are being widely
deployed due to its increased efficiency compared to AC
networks. An energy storage system helps to cater power flow
imbalances due to the intermittent nature of renewable energy
sources and varying load conditions. An adaptive Battery
Energy Management System (BEMS) to ensure efficient
operation of the battery storage system is proposed in this study.
The state of charge (SoC) level management is of great
importance for the prolong battery life, minimizing the capacity
fade and avoiding over draining of the battery storage.
Monitoring SoC level, DC bus voltage regulation and ability to
provide backup power are the main considerations in designing
the proposed BEMS. Performance of the proposed control
algorithm was evaluated using PSCAD/EMTDC simulation
results, and is presented in this paper.
