The use of fixed control coefficients in Battery Energy Storage Systems (BESS) has several limitations:
- Inability to Adapt to Dynamic Conditions: Fixed control coefficients do not allow the system to adjust dynamically according to changing conditions, such as battery state of charge (SOC) variations or unexpected power fluctuations. This can lead to inefficient operation and potential dangers like overcharging or overdischarging if the battery’s actual condition differs from expected.
- Inflexibility in Different Scenarios: In scenarios like sudden changes in power output from renewable sources or battery failures, fixed coefficients cannot be adjusted quickly enough to ensure optimal performance and safety.
- Risk of Overcharging/Overdischarging: Without dynamic adaptation, batteries may not receive the right amount of power, leading to either overcharging, which could cause damage, or overdischarging, which reduces the system’s ability to provide power when needed.
- Suboptimal System Performance: Fixed coefficients may result in suboptimal distribution of power among different battery cells, leading to inconsistent SOC levels. This can compromise the overall efficiency and lifespan of the battery pack.
- Limited Responsiveness to System Needs: In frequency regulation tasks, fixed control coefficients may not adequately respond to system frequency fluctuations, potentially failing to provide the required stability improvements.
To address these limitations, adaptive control strategies that adjust coefficients based on real-time conditions are increasingly recommended.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/what-are-the-limitations-of-using-a-fixed-control-coefficient-in-bess/
