CN103454593A - Storage battery service life measurement method based on measurement of internal resistance and voltage - Google Patents
Storage battery service life measurement method based on measurement of internal resistance and voltage Download PDFInfo
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- CN103454593A CN103454593A CN2013104136311A CN201310413631A CN103454593A CN 103454593 A CN103454593 A CN 103454593A CN 2013104136311 A CN2013104136311 A CN 2013104136311A CN 201310413631 A CN201310413631 A CN 201310413631A CN 103454593 A CN103454593 A CN 103454593A
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Abstract
The invention relates to a storage battery service life measurement method based on the measurement of internal resistance and voltage. The method includes the steps of firstly, obtaining a voltage signal of a storage battery through a voltage sensor; secondly, conducting triggering to measure the internal resistance value of the storage battery when the voltage signal reaches a set voltage value in the charging process or a set voltage value in the discharging process; thirdly, judging the deviation between the measured internal resistance value and a calibration value curve to judge the service life of the storage battery. Compared with the prior art, the storage battery service life measurement method has the advantages that the measurement problem of the current storage battery service life is solved, and the detection process and the maintenance process are intelligent and refined.
Description
Technical field
The present invention relates to a kind of life of storage battery measuring method, especially relate to a kind of life of storage battery measuring method based on interior resistance and voltage measurement.
Background technology
In the device of picture without the built-in standby accumulator such as power failure power supply (UPS), to the detection of the life of storage battery particularly important aspect maintenance inspection.The deterioration in the life-span of nickel-hydrogen accumulator, in general, the corrosion of the hydrogen absorbed alloy alloy of negative pole is its main cause, still, the impact of the principal elements such as size of bearing power when serviceability temperature, discharge time, elapsed time and electric discharge is also more.Like this, the key element in judgement life-span is varied, and the life-span of the accumulator in using that judges rightly is not easy very much.
The internal cell resistance value is one of efficiency index of the reflection life of storage battery.But the internal cell resistance value presents different interior resistance values in the different courses of work and under different voltage levvls, thereby be difficult to it is effectively direct and life of storage battery generation funtcional relationship.Horizontal index relative method between the accumulator that can find at present can characterize certain battery condition, but sees that development and change process and life appraisal to the internal cell resistance value do not form effective method.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of life of storage battery measuring method based on interior resistance and voltage measurement in order to overcome the defect that above-mentioned prior art exists, to solve the measurement problem of current accumulator operation life, make detection and maintenance process intellectuality, become more meticulous.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of life of storage battery measuring method based on interior resistance and voltage measurement, is characterized in that, comprises the following steps:
1), by voltage sensor, obtain the battery tension signal;
2) when voltage signal reach on voltage wear or under wear while determining magnitude of voltage, trigger and measure the internal cell resistance value;
3) the interior resistance value that judgement is measured and the deviation of calibration value curve are judged the life-span of accumulator.
Wear on described voltage that to determine magnitude of voltage be charging process, wear under voltage that to determine magnitude of voltage be discharge process.
Described calibration value curve generative process is as follows:
11) set interior resistance measurement number of times for the accumulator of not demarcating, the internal cell resistance mean value that obtained under the same conditions is as calibration value;
12) form respectively in charging process resistance calibration value curve in resistance calibration value curve and discharge process with the calibration value that wears up and down under each setting voltage value.
In described charging process, the interior resistance calibration value curve of resistance calibration value curve and discharge process is: using voltage as horizontal ordinate, interior resistance, as ordinate, forms continuous curve between the calibration value under the different voltage of each identical process, carrying out interpolation.
The interior resistance value that described judgement is measured and the deviation of calibration value curve judge that the life-span of accumulator is specially:
When interior resistance value and calibration value curve deviation are less than calibration value 10%, judge that battery condition is as health;
When interior resistance value and calibration value curve deviation are greater than calibration value 10% and are less than calibration value 20%, judge that battery condition is as arousing attention;
When interior resistance value and calibration value curve deviation are greater than calibration value 20%, judge that battery condition changes in time as need.
Described interior resistance value only limits under the identical voltage conditions of identical process compare gained with calibration value curve deviation.
Compared with prior art, the present invention has the following advantages:
By judge interior resistance value and calibration value curve deviation and the judgement after measure, make the detection of battery pack and maintenance process intelligent, become more meticulous, security and the economy of the operation of raising system, reduce the uncertain potential safety hazard that descends and bring because of accumulator property.
The accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention;
Fig. 2 is the functional block diagram that the present invention realizes.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As depicted in figs. 1 and 2, a kind of life of storage battery measuring method based on interior resistance and voltage measurement comprises the following steps:
1), by voltage sensor, obtain the battery tension signal;
2) when voltage signal reach on voltage wear or under wear while determining magnitude of voltage, trigger and measure the internal cell resistance value, wear on described voltage that to determine magnitude of voltage be charging process, wear under voltage that to determine magnitude of voltage be discharge process;
3) the interior resistance value that judgement is measured and the deviation of calibration value curve are judged the life-span of accumulator.
Described calibration value curve generative process is as follows:
11) set interior resistance measurement number of times for the accumulator of not demarcating, the internal cell resistance mean value that obtained under the same conditions is as calibration value;
12) form respectively in charging process resistance calibration value curve in resistance calibration value curve and discharge process with the calibration value that wears up and down under each setting voltage value.
In described charging process, the interior resistance calibration value curve of resistance calibration value curve and discharge process is: using voltage as horizontal ordinate, interior resistance, as ordinate, forms continuous curve between the calibration value under the different voltage of each identical process, carrying out interpolation.
The interior resistance value that described judgement is measured and the deviation of calibration value curve judge that the life-span of accumulator is specially:
When interior resistance value and calibration value curve deviation are less than calibration value 10%, judge that battery condition is as health; When interior resistance value and calibration value curve deviation are greater than calibration value 10% and are less than calibration value 20%, judge that battery condition is as arousing attention; When interior resistance value and calibration value curve deviation are greater than calibration value 20%, judge that battery condition changes in time as need.
Described interior resistance value only limits under the identical voltage conditions of identical process compare gained with calibration value curve deviation.
Claims (6)
1. the life of storage battery measuring method based on interior resistance and voltage measurement, is characterized in that, comprises the following steps:
1), by voltage sensor, obtain the battery tension signal;
2) when voltage signal reach on voltage wear or under wear while determining magnitude of voltage, trigger and measure the internal cell resistance value;
3) the interior resistance value that judgement is measured and the deviation of calibration value curve are judged the life-span of accumulator.
2. a kind of life of storage battery measuring method based on interior resistance and voltage measurement according to claim 1, is characterized in that, wears on described voltage that to determine magnitude of voltage be charging process, wears under voltage that to determine magnitude of voltage be discharge process.
3. a kind of life of storage battery measuring method based on interior resistance and voltage measurement according to claim 2, is characterized in that, described calibration value curve generative process is as follows:
11) set interior resistance measurement number of times for the accumulator of not demarcating, the internal cell resistance mean value that obtained under the same conditions is as calibration value;
12) form respectively in charging process resistance calibration value curve in resistance calibration value curve and discharge process with the calibration value that wears up and down under each setting voltage value.
4. a kind of life of storage battery measuring method based on interior resistance and voltage measurement according to claim 3, it is characterized in that, in described charging process, the interior resistance calibration value curve of resistance calibration value curve and discharge process is: using voltage as horizontal ordinate, interior resistance, as ordinate, forms continuous curve between the calibration value under the different voltage of each identical process, carrying out interpolation.
5. a kind of life of storage battery measuring method based on interior resistance and voltage measurement according to claim 1, is characterized in that, the interior resistance value that described judgement is measured and the deviation of calibration value curve judge that the life-span of accumulator is specially:
When interior resistance value and calibration value curve deviation are less than calibration value 10%, judge that battery condition is as health;
When interior resistance value and calibration value curve deviation are greater than calibration value 10% and are less than calibration value 20%, judge that battery condition is as arousing attention;
When interior resistance value and calibration value curve deviation are greater than calibration value 20%, judge that battery condition changes in time as need.
6. a kind of life of storage battery measuring method based on interior resistance and voltage measurement according to claim 5, is characterized in that, described interior resistance value only limits under the identical voltage conditions of identical process compare gained with calibration value curve deviation.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110297188A (en) * | 2019-07-24 | 2019-10-01 | 国网河北省电力有限公司邢台供电分公司 | Monitored System of Industrial Storage Cell |
| CN112677989A (en) * | 2021-01-12 | 2021-04-20 | 天津易众腾动力技术有限公司 | New energy automobile pedal position sensor service life monitoring method |
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| JP2000012104A (en) * | 1998-06-24 | 2000-01-14 | Matsushita Electric Ind Co Ltd | Method and device for displaying residual capacity of battery |
| CN1727909A (en) * | 2005-07-28 | 2006-02-01 | 上海交通大学 | Method for detecting internal resistance of accumulator through electromagnetic discharge |
| CN101140316A (en) * | 2006-02-17 | 2008-03-12 | 金百达科技有限公司 | Method and apparatus for monitoring the condition of a battery by measuring its internal resistance |
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2013
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Patent Citations (3)
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| JP2000012104A (en) * | 1998-06-24 | 2000-01-14 | Matsushita Electric Ind Co Ltd | Method and device for displaying residual capacity of battery |
| CN1727909A (en) * | 2005-07-28 | 2006-02-01 | 上海交通大学 | Method for detecting internal resistance of accumulator through electromagnetic discharge |
| CN101140316A (en) * | 2006-02-17 | 2008-03-12 | 金百达科技有限公司 | Method and apparatus for monitoring the condition of a battery by measuring its internal resistance |
Non-Patent Citations (2)
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| 周东方 等: "基于CAN总线的UPS电源电池检测方法", 《电源技术》, vol. 36, no. 8, 31 December 2012 (2012-12-31), pages 1140 - 1142 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110297188A (en) * | 2019-07-24 | 2019-10-01 | 国网河北省电力有限公司邢台供电分公司 | Monitored System of Industrial Storage Cell |
| CN112677989A (en) * | 2021-01-12 | 2021-04-20 | 天津易众腾动力技术有限公司 | New energy automobile pedal position sensor service life monitoring method |
| CN112677989B (en) * | 2021-01-12 | 2022-04-01 | 天津易众腾动力技术有限公司 | New energy automobile pedal position sensor service life monitoring method |
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