Charging method for accumulator

A charging method and battery voltage technology, applied in the field of battery charging management, can solve the problems of improper charging current adjustment, single charging current limiting method, battery damage, etc., to achieve extended service life, high return on investment, and avoid overcharge or overdischarge Effect

Inactive Publication Date: 2003-04-09
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the single charging current limiting means in the existing storage battery charging management technology and the storage battery damage caused by improper adjustment of the charging current

Method used

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  • Charging method for accumulator
  • Charging method for accumulator
  • Charging method for accumulator

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Embodiment Construction

[0008] Below in conjunction with accompanying drawing and specific embodiment the technical scheme of this aspect is described in further detail:

[0009] figure 1 It is a more detailed description of the technical solution, which has been described in the technical solution.

[0010] figure 2 Take a backup 200AH (Ampere-Hour) battery pack of a 300A combined power supply as an example, assuming that the battery is recharged after a power outage and then on, and the charging current ratio Q is set to 20%. The processing steps of this method are as follows: 1. Real-time sampling to obtain the battery voltage V1=50V at the moment before the call; 2. Calculate the constant current charging allowable current I=charging current ratio Q×battery total capacity C=20%×200=40A ;3. When entering the charging stage, first adjust the output voltage of the rectifier to V1+0.1 volts = 50.1 volts; 4. Real-time sampling of the battery charging current i; 5. Calculate the difference δ between...

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Abstract

A charging method for storage battery incldues the following steps: 1. real-time sampling systematic output voltage or the battery voltage VI before turned-on; 2. calculating allowable current I of constant charging; 3. when entering into the charging step, first of all adjusting the rectifier output V to a bit higher than the system output voltage or the battery voltage VI before turned on; 4. real time sampling the charging current i of the battery; 5. computing the differential value delta between sampled current; and constant charging current I; 6. further adjusting the rectifier output voltage V in line with the value delta and continuing with step 4,5,6, to keep the charging current within 90%-100% of constant charging allowable current I.

Description

technical field [0001] The invention discloses a storage battery charging management method, which relates to the storage battery management method of communication power supply, UPS power supply and the like. Background technique [0002] As a backup power supply when the mains power fails, the battery is an indispensable part of the communication power supply system. There are two types of charge management for the storage battery: one is regular equalization charge after long-term floating charge; the other is supplementary charge after the utility power is cut off and on again. The charging of the storage battery is a process of constant current and then constant voltage, and the constant current stage is the most important. will damage the battery. There are two ways to limit the charging current in the traditional battery charging management: voltage regulation or current limiting. The voltage regulation method is to limit the charging current by adjusting the outpu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/44
CPCY02E60/12Y02E60/10
Inventor 严宏明马建军
Owner ZTE CORP
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