BMS SECTION & PRINCIPLE

To be able to dive into the BMS, we first have to have a general understanding of what BMS is and what is the purpose. The BMS can vary in capability and what functions are integrated in. The first basic recommended functions are:

  • Over charge protection
  • Over discharge protection
  • Short protection
  • Voltage monitoring
  • Temperature monitoring
  • State of charge (SOC)

Additional functions can be added, depending of complexity and functionality requirements.

 

 

 

More to come…

WHAT BMS IS

Battery management system (BMS) is technology dedicated to the oversight of a battery pack, which is an assembly of battery cells, electrically organized in a row x column matrix configuration to enable delivery of targeted range of voltage and current for a duration of time against expected load scenarios.

BMS FUNCTIONS
What are the functions of a BMS?
The main goal of BMS is to keep the battery within the safety operation region in terms of voltage, current, and temperature during the charge, the discharge, and in certain cases at open circuit.

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SMART BMS
A SMART BMS may balance delivering high power, maximizing energy storage, guaranteeing safety, and extending battery life as needed for a specific use case by intelligently controlling charging, discharging, and operating circumstances.
What are the features of smart BMS?
These features include:
  • State of charge calculations.
  • Cell over-voltage and under-voltage protection.
  • Intelligent battery balancing (passive).
  • Battery charger control.
  • Pack temperature monitoring.
  • Monitors health of battery pack.

BMS INTEGRATION

This is a basic BMS integration that serves as over charge protection, over discharge protection and passive balancing.

The basic BMS is the most common used in low costs battery production to give only safety and most important functions for the battery to operate.

BMS INTEGRATION

The basic BMS is used here as well, this is a different development board ment for cilindrical space and underwater battery purpose. The BMS cand be integrated in any PCB shape.

BLANK BOARD

The blank board is designed for low production costs and serves as a subsystem prototype product. The slave blank board is used to add parallel connections to increase overall battery capacity. On top of the board a MASTER BMS board can be added to safely monitor and balance the cells from the modular system.