Intelligent battery management system based on supercapacitor active equalization

Abstract

The invention discloses an intelligent battery management system based on supercapacitor active equalization. The intelligent battery management system based on the supercapacitor active equalization comprises a battery pack, a detection / protection system, an active equalization system, a main controller system and a display system, wherein the main controller system is respectively in bidirectional communication with the signal end of the display system and the signal end of the detection / protection system, the control signal output end of the main controller system is communicated with the signal input end of the battery pack through the active equalization system, and the detection / protection system is in bidirectional communication with the battery pack. Compared with an existing intelligent management system, through the intelligent battery management system based on the supercapacitor active equalization, switching speed can be improved to dozens of kHz, energy transfer efficiency can be improved effectively, reliable switching logic is achieved, system safety is ensured, the energy transformation efficiency of the system is made to be higher, and energy consumption is smaller. Multiple battery packs can be monitored simultaneously, cascade of the battery packs can be achieved, and requirements of complex systems can be met. Through the visual design of a human-computer interface, system parameters can be set conveniently, and states of the battery packs can be known clearly.

Description

Technical field [0001] The invention relates to an intelligent battery management device, in particular to an intelligent battery management system based on super capacitor active balancing. Background technique [0002] The single battery voltage platform is only 3.2-3.7V, and it usually needs to be connected in series to form a battery pack to meet the voltage requirements. During the discharging process, if the voltage of some single battery is low and the discharge capacity is lost, then it becomes an electrical appliance, and other single batteries with capacity are connected in series to charge it, and a single battery appears The reverse polarity phenomenon makes the entire battery pack unable to work normally, and at the same time has a great impact on the life of the single battery with reverse polarity. During the charging process, the single battery that is discharged first will be fully charged again, which will cause an overcharging phenomenon, making the entire bat...

AI Technical Summary

Problems solved by technology

[0004] Although the function of the traditional capacitor balancing method can meet the requirements, because of the short service life of the relay, the slow switching speed, and the large internal resistance of the electrolytic capacitor, it may burn out the circuit or even cause a short circuit of the battery due to the asynchronous switching logic and switching speed. explosion occurs

Therefore, this solution has been in the experimental stage, and it is impossible to transition to the product stage. Because of this, there are almost no full-capacitance balanced products on the market.

Images