Key functions of lithium iron phosphate battery pack management system
The key functions of a lithium iron phosphate (LFP) battery processing system. A LFP battery processing system transforms a group of seemingly unresponsive batteries into a smart lithium-ion battery pack. The processing can be divided into two main parts: battery monitoring and battery control. The monitoring part includes voltage and temperature measurement as well as battery balancing. These are the fundamental characteristics of a LFP battery processing system.
Overpressure protection
Continuous charging will begin when the charging voltage of a single battery exceeds the allowable value. Disconnect the charging device from the lithium-ion battery pack.
Call the police
An alarm signal is issued when the discharge voltage of a single battery cell falls below the warning value.
Discharge maintenance
When the discharge voltage of a single battery falls below the maintenance value, it will continue to discharge, disconnecting the electrical equipment from the lithium-ion battery pack and triggering an alarm.
Overcurrent alarm
An alarm will sound when the current output of the lithium iron phosphate battery pack exceeds the warning value.
Short circuit maintenance
When a short circuit occurs in the lithium iron phosphate battery pack, it will immediately and continuously discharge, disconnect the electrical equipment from the lithium-ion battery pack, and provide an alarm prompt.
Temperature alarm
The following alarm will be triggered when the temperature of the lithium iron phosphate battery or the ambient temperature exceeds the warning value:
Temperature alarm
An alarm will sound when the battery temperature or ambient temperature exceeds a warning threshold.
Temperature maintenance
When the ambient temperature or the internal temperature of the lithium-ion battery exceeds the maintenance value, immediately disconnect the charging or electrical equipment from the battery and issue an alarm. When the ambient temperature or the internal temperature of the lithium iron phosphate battery pack returns to the allowable value, the battery handling function can be manually or actively restored, but the battery's discharge function will not be affected.
Estimate the state of charge of the battery pack
State of charge (SOC) refers to the battery's charging status. Maintaining the SOC within a reasonable range helps prevent battery damage from overcharging or over-discharging.
As the core component of battery maintenance and management, the Battery Management System (BMS) not only ensures the safe and reliable operation of the battery but also fully utilizes its functions and extends its lifespan. As a backup power source for communication, the processing system acts as a bridge between the high-voltage DC power supply and the battery.
The negative electrode of a lithium iron phosphate battery is made of lithium iron phosphate (LiFePO4), which offers excellent safety performance and a long cycle life. It features a fully intelligent design with a complete monitoring module, offering four functions: telemetry, remote control, and remote adjustment. It performs computer processing and can communicate with a remote central monitoring center.
The above is some basic information about the Yantai lithium iron phosphate battery BMS system. The lithium iron phosphate battery is an integrated unit, small in size, lightweight, safe, environmentally friendly, highly reliable, and powerful. It also features adjustable characteristics. The important lithium iron phosphate battery processing system collects parameters as a reference and controls the operation in real time to maintain the normal operation of the lithium-ion battery.
