How to use UPS lithium iron phosphate battery floating charge

Use UPS lithium iron phosphate battery floating charge to check the discharge condition of the lithium battery. Perform a single discharge of the lithium battery UPS to check whether the lithium battery pack can meet the requirements of the maximum average load. This discharge method is called check discharge. The detailed method is: select the high-frequency switching power supply that is interrupted under the maximum load, so the lithium battery pack is discharged in order to practice the power required by the load, all the lithium iron phosphate battery packs, and the lithium battery pack that is accounted for at the end of the discharge The output capacity. Strengthen the management of floating mortgage operation method The operating mode of floating charging is that in the DC power supply system, the lithium iron phosphate battery pack is connected in parallel with the charging device, which is the only backup power source for the DC power supply system of the substation. During the floating charging operation, because the internal resistance and self-discharge of each lithium battery UPS are different, its actual capacity is also different, which is reflected in different terminal voltages. Temperature compensation of floating charge Because the working environment temperature of lithium iron phosphate battery pack is different, UPS lithium iron phosphate battery has different requirements for floating charging pressure. The corresponding monitoring and operating technical parameters should be set to eliminate the undercharge and overcharge phenomenon caused by the temperature difference. Therefore, the float voltage value should be adjusted accordingly according to the change of the ambient temperature. During the operation of the balanced charging UPS power lithium battery, since the self-discharge of each lithium battery is uncommon, the internal resistance and terminal voltage of a single lithium battery will be different from most lithium batteries, resulting in the capacity of each lithium battery is uncommon The phenomenon of imbalance. In order to solve these problems, the output voltage of the charging device was improved, and a larger charging current appeared in the lithium battery circuit. At this time, when the capacity of a single lithium battery is satisfied, other lithium batteries are in an overcharged state. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: Is the drop in sales of power lithium-ion batteries all the fault of pure electric buses?