An intelligent power management system applied to lithium battery charge and discharge control

Abstract

The invention provides an intelligent power management system for lithium battery charge and discharge control, which is built on an ARM core board and is an SOC system running in a linux environment.The management system can be used for performing distribution intelligent charge and discharge control on a plurality of single lithium batteries, uniformly and efficiently managing the plurality oflithium batteries and improving the charge and discharge management efficiency. In addition, the management system can also calculate the power in real time according to the voltage and current of thesingle lithium battery so as to dynamically turn off the power supply of the single lithium battery which meets the charge-discharge requirement, thereby achieving the effect of energy conservation.The management system is provided with safety monitoring equipment to ensure that the system is used in a safe environment, so that the service life of the lithium battery is prolonged. The effects ofdata management and control and energy saving are further achieved through a strategy of pushing upper computer software.

Description

technical field [0001] The invention relates to the field of electronic control, in particular to an intelligent power management system applied to charge and discharge control of lithium batteries. Background technique [0002] "Lithium battery" is a type of rechargeable battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. It has high energy density, high internal resistance, high battery voltage, high cycle times, and low self-discharge rate Features quickly replace traditional nickel-chromium and nickel-metal hydride batteries, and are widely used as power sources for electric vehicles and hybrid vehicles. However, lithium batteries have high requirements for protection circuits, and overcharging and overdischarging should be strictly avoided during use. Time can also maintain the effect of battery / extend battery life. [0003] The existing technology cn103715737b is a lithium battery charge and...

AI Technical Summary

Problems solved by technology

[0003] The existing technology cn103715737b is a lithium battery charge and discharge management system, which provides a pressure equalization module added in the system to balance the charge and discharge of multiple single lithium batteries, and a detection device is set to detect the voltage and current of the battery pack in real time. However, this device only has the effect of safety detection, and it cannot protect the lithium battery in time when there is a charging risk, and the addition of a pressurized equalization module further consumes power, which is not energy-saving.

[0004] The existing technology cn105914822b provides an intelligent, environmentally friendly and energy-saving battery power supply system and method, which realizes the charging switching of two battery packs and utilizes the battery utilization efficiency. The system is suitable for charging switching of different types of battery packs, and the scope of application is small

[0005] In addition, the traditional field of composition and capacity processes data through single-chip microcomputers, which has at least the following disadvantages: 1. Once the upper computer software or single-chip microcomputers have unexpected failures, such as computer crashes, power failures, and human misuses, it will Affects the security of the composition capacity and the loss of important node data; 2. It cannot be developed without the chip environment, and the cost of development and debugging is very high; 3. When a replacement occurs, it is necessary to wait until the end of the process operation, which will affect the production capacity

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