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Method and device for monitoring and maintaining faults of storage battery

A fault monitoring and storage battery technology, applied in secondary battery repair/maintenance, secondary batteries, circuits, etc., can solve problems such as single maintenance means and methods

Active Publication Date: 2011-07-06
中国移动通信集团甘肃有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above judgment conditions will not be able to meet the charging requirements after the battery capacity drops or vulcanization occurs. Since the daily charging and maintenance management of mobile communication base station batteries mainly depends on switching power supply equipment, the more fundamental solution to the problem of battery capacity decline lies in switching power supply charging.
[0005] In the process of realizing the present invention, the inventors found that there are the following problems in the prior art storage battery failure maintenance methods: for different types of storage battery failures, the maintenance means and methods are single

Method used

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  • Method and device for monitoring and maintaining faults of storage battery
  • Method and device for monitoring and maintaining faults of storage battery

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Embodiment 1

[0036] The present invention is carried out on the basis of patent application numbers 200910224282.2, 200910210406.1, 200910249896.6, and 200810171751.4. It is through the combination of the above technologies to judge the battery voltage, charge and discharge current, existing capacity and remaining capacity, and the temperature measurement of the battery to determine the early, middle and late capacity loss (PCL) and dehydration of the battery. , vulcanization fault, and establish the premature loss of battery capacity (PCL) dehydration vulcanization failure model; through the battery online maintenance control module, according to the actual situation of premature loss of battery capacity (PCL), dehydration, and vulcanization faults, the switch can be adjusted It is a device and system formed by controlling the power supply equipment and adjusting the combination of various charging parameters of the switching power supply monitoring unit to realize the premature loss of ba...

Embodiment 2

[0045] The main reason for the premature capacity loss (PCL) of the battery: the early capacity decay of the VRLA battery, that is, the PCL phenomenon exists objectively, but the early capacity decay (PCL) phenomenon is related to the sulfation of the battery, anode corrosion, dehydration and dryness. Thermal runaway causes a decrease in battery capacity and a shortened service life is fundamentally different.

[0046] 1. Premature loss of battery pack capacity (PCL) fault judgment

[0047]Premature loss of battery capacity (PCL) failure phenomenon and failure model composite technology judgment method, this solution is an online maintenance control module built-in battery capacity premature loss (PCL) of various phenomena mainly have the following points: When the battery is used In the early stage of PCL-1 (about 20 cycles), there is a sudden drop in capacity, which makes the battery invalid. The battery capacity will drop by 5% in almost every cycle. The speed of capacity d...

Embodiment 3

[0070] According to the double sulfation theory of the battery, after each discharge of the battery, the different active materials of the positive and negative plates are transformed into lead sulfate, and after charging, they are respectively reduced back to different active materials. The main reasons for double sulfation of batteries: 1. Frequent over-discharge, deep discharge with low current, and high-current discharge at low temperature; 2. Untimely supplementary electricity, insufficient charging, and high acid density; When left on hold for a long time, the lead sulfate on the surface of the plate is accumulated excessively and dissolved in the electrolyte, which is in a saturated state. These lead sulfate particles are recrystallized and precipitated on the surface of the plate under the fluctuation of temperature and acid concentration.

[0071] The various phenomena of battery vulcanization mainly include the following points: 1. During normal discharge, the capacit...

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Abstract

The invention discloses a method and a device for monitoring and maintaining faults of a storage battery. The method comprises the following steps: detecting the capacity and charging and discharging and temperature parameters of a single storage battery; judging the fault type of the single storage battery according to the parameters; and alarming and processing according to a fault result. The method is designed from the angle of on-line maintenance of the storage battery, the influence of the charging mode of a switch power supply on the performances of the storage battery and the relationship between the charging parameter of the storage battery and the capacity of the battery are figured out, a technology for on-line maintaining the possibly legged-behind or already legged-behind batteries is provided, and a method for adjusting the charging parameter of the switch power supply at different phases in the network operation process of the storage battery is introduced in detail, sothat the performance of a battery pack is improved and the service life of the storage battery is prolonged, and the provided method and device are realized by a more-mature technical scheme with a low cost.

Description

technical field [0001] The invention relates to the technical field of communication industry support, in particular to a method and device for monitoring and maintaining storage battery faults. Background technique [0002] At present, valve-regulated lead-acid batteries are widely used in communication power supplies. Understanding the failure modes of batteries and their performance during use is of great significance for safe production. Reasonable selection and use of the battery and battery monitoring module in the current DC power supply system has a great effect on prolonging the service life of the battery, and is of great significance for obtaining the greatest safety and economic benefits. [0003] The storage battery is the guarantee for the uninterrupted operation of the communication system, but in the process of use, due to various reasons, its performance and capacity will be reduced. When the capacity is reduced to a certain extent, it will affect the norma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/48
CPCY02E60/12Y02E60/10
Inventor 包静
Owner 中国移动通信集团甘肃有限公司
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