Method and device for determining battery state

Abstract

The invention discloses a method for determining a battery state. The method for determining the battery state comprises the steps of respectively determining corresponding voltages of a battery at a first time and a second time, determining corresponding currents of each battery pack in the battery at the first time and the second time; when the first time satisfies two random kinds of conditions selected from three kinds of conditions, determining the first time as the starting point of a battery discharging event; when the second time satisfies two random kinds of conditions selected from the three kinds of conditions, determining the second time as the final point of the battery discharging event; utilizing the final point of the battery discharging event as the starting point of a battery charging event; determining the floating charge value of the battery, and determining the final point of the battery charging event according to the floating charge value. The invention further discloses a device for determining the battery state.

Description

technical field [0001] The invention relates to base station power supply technology, in particular to a method and device for determining the state of a storage battery. Background technique [0002] At present, mobile communication base stations are widely distributed, and the battery in the base station is an important part of emergency power supply; when the power is cut off, the battery supplies power to the base station, and when the power is supplied, the battery is charged to facilitate emergency power supply. Therefore, the battery in the base station is often in The charging and discharging cycle process. [0003] During the use of the battery, if the charging and discharging process of the battery cannot be effectively controlled, the battery will appear irreversible vulcanization, dryness and swelling, which will reduce the capacity of the battery, shorten its life, and eventually be scrapped. , will increase operating costs, resulting in waste of resources and ...

AI Technical Summary

Problems solved by technology

[0004] Most of the existing testing methods for battery performance are physical or chemical methods, both of which require maintenance personnel to test. Therefore, the existing testing methods have the problem of inaccurate test results due to differences in manual operations, and the performance of the battery is not accurate. Detection cannot be real-time and normalized

When extracting the data of battery charging and discharging events to determine the charging start and end point, discharge start point and end point of the battery, it is not obtained through strict theoretical calculations, but through maintenance personnel using measurement tools or collecting battery voltage, Current and other methods are obtained based on past data and own experience. Therefore, the determined starting point and end point of charging and the starting point and end point of discharging are inaccurate, so that according to the determined starting point and end point of charging and the There is an error in the amount of electricity charged and discharged from the battery calculated at the starting point and the end point, which leads to inaccurate judgments of the performance of the battery by the maintenance personnel, and eventually causes the battery that can be used safely to be replaced

[0005] At present, the management of battery charging and discharging is in a state of extensive management, and there is no monitoring and management of battery charging and discharging, resulting in frequent discharge of batteries and less charging, or less discharge and more charging of batteries, making batteries often overcharged. discharge, overcharge

[0006] For companies and manufacturers with a large number of batteries, the management of battery performance requires a lot of human and financial resources, and the maintenance cost is high, and management confusion is great. In addition, the existing technology lacks background technical support means, so that A large number of batteries are difficult to achieve refined performance testing and maintenance management

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