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Automatic battery pack charging-discharging management device and working method thereof

A technology of automatic management and working methods, applied in the direction of battery circuit devices, terminal battery switching devices, circuit devices, etc., can solve the problems of many system components, low efficiency, and complex systems, so as to reduce environmental pollution and reduce maintenance times , cost reduction effect

Active Publication Date: 2012-09-19
杨湘武
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent solves the charge-discharge balance problem of the battery, and will bring huge benefits to the society in terms of energy saving, environmental protection, safety and reliability, and elimination of hidden dangers. However, there are still 5 points that can be improved: 1. The system is complex and costly; 2. .There are two power conversion processes in the discharge link, the first is independent boosting, and the second is current limiting and voltage regulation, which will reduce efficiency; 3. The price of super capacitors is high, and there are reliability and costs in high-power applications 4. The circuit starts for a long time; 5. The sudden load current impact will cause the voltage to drop; 6. There are too many components in the system, and it is not easy to use it to modify the existing equipment

Method used

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  • Automatic battery pack charging-discharging management device and working method thereof
  • Automatic battery pack charging-discharging management device and working method thereof
  • Automatic battery pack charging-discharging management device and working method thereof

Examples

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Effect test

Embodiment 1

[0028] Embodiment 1: The battery pack charging and discharging automatic management device of the present invention, the battery pack is formed by a plurality of single cells connected in series, and at least one single cell is backed up in the battery pack, and multiple redundant backups are adopted, and all single cells are the same of. Each single battery including the backup single battery is individually connected to a sub-controller A, and all sub-controllers are connected to each other for signals. The memory in sub-controller A is pre-written with the "number of battery inputs" obtained by dividing the total voltage of the battery pack by the voltage of the single battery, and also writes in the number of redundant backup batteries. Signal communication can be carried out between sub-controllers. Each sub-controller separately manages the charging of its own single battery, and the single battery is boosted and discharged in series, canceling the inverter boost link a...

Embodiment 2

[0037] Embodiment 2: All sub-controllers are jointly connected to a general controller, and the general controller includes a microprocessor II connected to each microprocessor I signal, and the microprocessor II is connected with a display, a keyboard, an audible and visual alarm module and Program upgrade interface. The display also has a historical record query function, which records the charging and discharging data and dates of each storage battery in the entire maintenance cycle. The keyboard is used for parameter setting. The sound and light alarm module is used for alarming when the battery pack is undervoltage. The program upgrade interface is used for program upgrade in the microprocessor II.

[0038] The main controller summarizes the information of all sub-controllers and displays them on the display, and sets the parameters through the keyboard. When all the backup single batteries are used up, the main controller sends out an audible and visual alarm signal to...

Embodiment 3

[0039] Embodiment 3: The present invention can also form a storage battery stack management system. On the basis of the above-mentioned embodiment 2, a plurality of such battery packs connected in series are connected in parallel. Suitable for large-scale wind-solar hybrid power plants.

[0040] The general controller stores the parameter comparison table of the voltage and temperature of various types of single cells, and determines the set minimum voltage value according to the comparison table. The total controller calculates the distance that can be completed according to the remaining power of the battery pack, and displays it on the display screen. Provide convenience for people to travel.

[0041] Miniaturized and modular structure, can be directly embedded in existing equipment, (such as: UPS, EPS power supply, and electric DC operating power supply, photovoltaic inverter system, etc.) can be flexibly expanded, reused, and reduce the waste of electronic waste generat...

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Abstract

The invention relates to an automatic battery pack charging-discharging management device. A battery pack consists of a plurality of single batteries in serial connection, wherein at least one single battery is backed up in the battery pack, each single battery including the backup single battery is independently connected with an auxiliary controller, and all auxiliary controllers are connected with one another through signals; and the working method of the device comprises the steps of a, calculating a charging capacity and a discharging capacity of each single battery; b, sequentially connecting the single batteries with sufficient quantity in serial to form a discharging battery pack according to the increasing sequence of the discharging capacity, and adopting the residual single batteries as backup; and c, utilizing the backup single batteries to substitute the single batteries which are completely discharged so as to discharge. The automatic battery pack charging-discharging management device and the working method thereof have beneficial effects that the reliability of the entire system can be improved, the resource can be saved, and the environment pollution can be reduced.

Description

technical field [0001] The invention belongs to the technical field of storage battery application and control, and in particular relates to a charging and discharging automatic management device for a battery pack and a working method thereof. Background technique [0002] At present, electric vehicles, solar photovoltaic inverter systems, etc. are widely using series-connected battery packs composed of various batteries. A large number of technical documents at home and abroad show that the application of battery packs often has the problems of short service life, insufficient discharge capacity, and low reliability. The biggest reason that affects the service life of the battery pack is overcharging and over-discharging; the cause of insufficient discharge capacity of the battery pack is the individual poor quality batteries in the battery pack, [0003] The reason for the low reliability is that during the high-current discharge process of the battery, individual batter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J7/36
Inventor 杨湘武
Owner 杨湘武
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