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Mining lithium battery management system

A management system and lithium battery technology, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve the problems of lack of thermal management functions, etc., to enhance the safety of the protection circuit itself, avoid excessive working temperature, and avoid safety accidents Effect

Inactive Publication Date: 2019-04-12
CHINA UNIV OF MINING & TECH
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Problems solved by technology

The battery management system developed by Tsinghua University is composed of six sub-circuits. In addition to voltage and current detection, it also includes a protection circuit to prevent the battery from overcharging and over-discharging. The SOC estimation algorithm adopted is relatively advanced. Accurate estimate of battery pack remaining capacity, but the system lacks thermal management

Method used

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  • Mining lithium battery management system
  • Mining lithium battery management system
  • Mining lithium battery management system

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Embodiment Construction

[0008] Below in conjunction with accompanying drawing, the present invention is further described:

[0009] Such as figure 1 As shown, a distributed mining lithium battery management system includes a host computer and several management terminals, and the host computer and management terminals are connected through a network or serial communication; the management terminal includes a main control unit, a battery pack The balancing unit, discharge monitoring unit, charging monitoring unit, capacity testing unit and temperature acquisition unit, the battery pack balancing unit, discharge monitoring unit, charging monitoring unit, capacity testing unit and temperature acquisition unit are respectively connected to the main control unit, and the upper computer A life prediction unit is provided; the temperature acquisition unit includes a temperature sensor group I and a temperature sensor group II, the temperature sensor group I is used to collect the temperature of the lithium ...

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Abstract

The invention discloses a distributed mining lithium battery management system. The mining lithium battery management system can monitor the temperature of a lithium battery and a circuit board in real time; when the temperature of the lithium battery or the circuit board is too high, the system automatically enters an electricity-saving working state, so that the problems that when the working temperature of the lithium battery is too high, explosion, fire and the like are caused are avoided. The temperature of the circuit board is monitored in real time, so that the safety of the protectioncircuit can be enhanced, and safety accidents caused by circuit self reasons can be avoided. According to a life prediction method, the battery capacity is adopted as a training sample to establish agrey RVM regression prediction model; DGM (1, 1) is adopted for performing capacity short-term prediction, the correlation is judged through grey correlation analysis, and the RVM model is dynamicallyupdated according to the result, so as to obtain a new correlation vector, in order to obtain a long-term trend prediction result of the method. According to the system, the lithium battery monitoring data is acquired in real time, so that the service life prediction precision of the mining lithium battery is more accurate.

Description

technical field [0001] The invention relates to a mining lithium battery management system, which belongs to the technical field of lithium battery management. Background technique [0002] Lithium-ion batteries refer to batteries containing lithium in the electrochemical system, generally composed of two parts: battery cells and management systems. At present, the research on battery management systems at home and abroad is mainly concentrated in the electric vehicle industry, and there are few management systems specifically for large-capacity lithium-ion batteries used in mines. The battery management system developed by Tsinghua University is composed of six sub-circuits. In addition to voltage and current detection, it also includes a protection circuit to prevent the battery from overcharging and over-discharging, and the SOC estimation algorithm adopted is relatively advanced. The estimate of the remaining capacity of the battery pack is accurate, but the system lack...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0091
Inventor 张晓光赵志科刘鸿泽孙佳胜徐桂云孙正
Owner CHINA UNIV OF MINING & TECH
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