Lithium manganite battery large-current balanced FPGA control system

Abstract

The invention discloses a lithium manganite battery large-current balanced FPGA control system. The lithium manganite battery large-current balanced FPGA control system comprises at least two serially connected lithium manganite batteries, first contactors, second contactors, a large-current discharge resistor, a lithium manganite battery voltage detecting module, an FPGA controller and a protection cover, wherein the first contactors and the second contactors are equal to the lithium manganite batteries in number. The FPGA controller obtains the voltages of the lithium manganite batteries through the lithium manganite battery voltage detecting module. When the balance degrees of the lithium manganite batteries are greater than a set threshold value, the lithium manganite battery with the maximum voltage discharges through the large-current discharge resistor according to set time. The system adopts an FPGA as the main balance controller, and the control speed is improved. The lithium manganite battery large-current balanced FPGA control system adopts a contactor matrix mode, achieves large-current discharge of the lithium manganite batteries so as to improve the balance reliability and large-current discharge. The system is simple in structure, convenient to operate, safe, reliable and good in balancing effect.

Description

technical field [0001] The invention belongs to the technical field of equalization of lithium battery packs, and in particular relates to a high-current equalization FPGA control system for lithium manganese oxide batteries. Background technique [0002] The development of fuel vehicles has caused a huge consumption of oil resources, the deepening of the global energy crisis, and at the same time aggravated the harm of the greenhouse effect and air pollution. Most countries, governments and automobile companies in the world generally recognize that energy saving and emission reduction is the future development direction of the automobile industry, and the development of electric vehicles will be the best way to solve this difficulty. Electric vehicles have the advantages of low noise, no exhaust emissions, environmental friendliness, high thermal efficiency, low emissions, recyclable utilization, and improved energy structure. Various automobile manufacturers are actively ...

AI Technical Summary

Problems solved by technology

When the capacity of the lithium manganese oxide battery is relatively large, the discharge current of the discharge resistor will hardly meet the requirements of fast equalization

If the power of the discharge resistor corresponding to each lithium manganese oxide battery is increased, its volume and heat dissipation will face new challenges. Existing systems that use resistance equalization rarely have large current equalization systems

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