BMS solar container energy storage system structure

What is a battery management system (BMS)?

Advanced BMS, such as EVESCO’s, monitor cells, modules, strings, and the entire system in real time, using algorithms to balance and control the battery, manage thermal conditions, and prevent thermal runaway. A well-designed BMS is essential for battery safety and longevity. The below picture shows a three-tiered battery management system.

What is a BMS & how does it work?

The BMS has three levels: a main controller (MBMS), a battery string management module (SBMS), and battery monitoring units (BMUs), with each SBMS supporting up to 60 BMUs. BESS batteries store and deliver DC power, while most loads use AC, requiring a Power Conversion System (PCS) or hybrid inverter.

What is a battery energy storage system?

For this guide, we focus on lithium-based systems, which dominate over 90% of the market. In more detail, let’s look at the critical components of a battery energy storage system (BESS). The battery is a crucial component within the BESS; it stores the energy ready to be dispatched when needed.

What are the critical components of a battery energy storage system?

In more detail, let’s look at the critical components of a battery energy storage system (BESS). The battery is a crucial component within the BESS; it stores the energy ready to be dispatched when needed. A battery contains lithium cells arranged in series and parallel to form modules, which stack into racks.