Battery Management in ESS

In ESS, the battery management system performs two main functions, namely battery protection and battery monitoring.
 
Battery Protection
Detecting various fault conditions and protecting the battery from damage during charging and discharging is the main purpose and function of the BMS. Operating a battery outside of its specifications can damage the cell and lead to battery failure, maintenance work and significant cost implications. The battery must be closely monitored during charging and discharging to avoid these negative effects.
 
Protection must be provided for the following conditions:

• Overvoltage/undervoltage
• Inrush currents
• Reverse currents
• Short circuit

 
Those who design with TLS energy stoarge system solutions will benefit from

• Broader safe operating area (SOA)
• Short-circuit protection with higher peak current rates
• On and off solutions tailored to application requirements
• Cost benefits from reduced bill of materials (BOM) quantities and more efficient parallelization solutions

 
Battery Monitoring
The battery must be systematically monitored to protect it. The battery management system is responsible for monitoring each cell in the battery pack and ensuring that they are operating within safe operating limits. Various parameters such as battery voltage, states of charge (SOC), state of health (SOH) and temperature have a decisive impact on the performance, safety and lifetime of the battery. Batteries need to be protected from external failures that could put the system at risk. Protecting the battery from damage during the normal function of the system (charging and discharging processes) is one of the main functions of the BMS. In TLS energy stoarge system solutions, designers will find the right device to disconnect the battery system when a fault is detected, thus protecting its value.

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