CN103454593B - Storage battery service life measurement method based on internal resistance and voltage measurement - Google Patents
Storage battery service life measurement method based on internal resistance and voltage measurement Download PDFInfo
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- CN103454593B CN103454593B CN201310413631.1A CN201310413631A CN103454593B CN 103454593 B CN103454593 B CN 103454593B CN 201310413631 A CN201310413631 A CN 201310413631A CN 103454593 B CN103454593 B CN 103454593B
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Abstract
The present invention relates to a kind of storage battery service life measurement method based on internal resistance and voltage measurement, comprise the following steps: 1) pass through voltage sensor, it is thus achieved that battery tension signal;2) when voltage signal reaches to wear on voltage or under wear setting voltage value time, trigger and measure internal cell resistance value;3) judge that the internal resistance value of measurement judges the life-span of accumulator with the deviation of calibration value curve.Compared with prior art, the present invention has the measurement problem solving current accumulator service life, makes the advantages such as detection and maintenance process are intelligent, become more meticulous.
Description
Technical field
The present invention relates to a kind of storage battery service life measurement method, especially relate to a kind of storage battery service life measurement method based on internal resistance and voltage measurement.
Background technology
As in device without built-in standby accumulator such as power failure power supplys (UPS), to the detection of the life of storage battery in maintenance inspection particularly important.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, but, the impact of the principal elements such as the size of bearing power when using temperature, discharge time, elapsed time and discharge is also more.So, it is judged that the key element in life-span is varied, the life-span of the accumulator in using that correctly judges is not easy very much.
Internal cell resistance value is one of most effective index of the reflection life of storage battery.But internal cell resistance value presents different internal resistance value in different work process and under different voltage levvls, thus is difficult to it is directly effective and life of storage battery generation functional relationship.Horizontal Indexes Comparison method between the accumulator can found at present can characterize certain battery condition, but sees that the development and change process to internal cell resistance value and life appraisal are formed without effective method.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and a kind of storage battery service life measurement method based on internal resistance and voltage measurement is provided, to solve the measurement problem of current accumulator service life, make detection and maintenance process intellectuality, become more meticulous.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of storage battery service life measurement method based on internal resistance and voltage measurement, it is characterised in that comprise the following steps:
1) voltage sensor is passed through, it is thus achieved that battery tension signal;
2) when voltage signal reaches to wear on voltage or under wear setting voltage value time, trigger and measure internal cell resistance value;
3) judge that the internal resistance value of measurement judges the life-span of accumulator with the deviation of calibration value curve.
Wearing setting voltage value on described voltage is charging process, and wearing setting voltage value under voltage is discharge process.
It is as follows that described calibration value curve generates process:
11) accumulator for not demarcating sets internal resistance value pendulous frequency, and internal cell resistance meansigma methods acquired under the same conditions is as calibration value;
12) charging process internal resistance calibration value curve and discharge process internal resistance calibration value curve are separately constituted with the calibration value that wears up and down under each setting voltage value.
Described charging process internal resistance calibration value curve and discharge process internal resistance calibration value curve be: using voltage as abscissa, internal resistance, as vertical coordinate, is interpolated formation full curve between the calibration value under each identical process difference voltage.
The deviation of the described internal resistance value judging to measure and calibration value curve judge accumulator life-span particularly as follows:
When internal resistance value and calibration value curve deviation are less than calibration value 10%, it is determined that battery condition is healthy;
When internal resistance value and calibration value curve deviation more than calibration value 10% less than calibration value 20%, it is determined that battery condition is for arousing attention;
When internal resistance value and calibration value curve deviation are more than calibration value 20%, it is determined that battery condition is for changing in time.
Described internal resistance value is only limitted under the identical voltage conditions of identical process to compare gained with calibration value curve deviation.
Compared with prior art, the invention have the advantages that
By the measure after judging internal resistance value and calibration value curve deviation and judging, make detection and the maintenance process intellectuality of accumulator battery, become more meticulous, the safety of raising system operation and economy, reduce the uncertain potential safety hazard because accumulator property decline brings.
Accompanying drawing explanation
Fig. 1 is the flow chart of the present invention;
Fig. 2 is the functional block diagram that the present invention realizes.
Detailed description of the invention
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 storage battery service life measurement method based on internal resistance and voltage measurement, comprise the following steps:
1) voltage sensor is passed through, it is thus achieved that battery tension signal;
2) when voltage signal reaches to wear on voltage or under wear setting voltage value time, trigger and measure internal cell resistance value, it is charging process that described voltage is worn setting voltage value, and wearing setting voltage value under voltage is discharge process;
3) judge that the internal resistance value of measurement judges the life-span of accumulator with the deviation of calibration value curve.
It is as follows that described calibration value curve generates process:
11) accumulator for not demarcating sets internal resistance value pendulous frequency, and internal cell resistance meansigma methods acquired under the same conditions is as calibration value;
12) charging process internal resistance calibration value curve and discharge process internal resistance calibration value curve are separately constituted with the calibration value that wears up and down under each setting voltage value.
Described charging process internal resistance calibration value curve and discharge process internal resistance calibration value curve be: using voltage as abscissa, internal resistance, as vertical coordinate, is interpolated formation full curve between the calibration value under each identical process difference voltage.
The deviation of the described internal resistance value judging to measure and calibration value curve judge accumulator life-span particularly as follows:
When internal resistance value and calibration value curve deviation are less than calibration value 10%, it is determined that battery condition is healthy;When internal resistance value and calibration value curve deviation more than calibration value 10% less than calibration value 20%, it is determined that battery condition is for arousing attention;When internal resistance value and calibration value curve deviation are more than calibration value 20%, it is determined that battery condition is for changing in time.
Described internal resistance value is only limitted under the identical voltage conditions of identical process to compare gained with calibration value curve deviation.
Claims (3)
1. the storage battery service life measurement method based on internal resistance and voltage measurement, it is characterised in that comprise the following steps:
1) voltage sensor is passed through, it is thus achieved that battery tension signal;
2) when voltage signal reaches to wear on voltage or under wear setting voltage value time, trigger and measure internal cell resistance value;
3) judge that the internal resistance value of measurement judges the life-span of accumulator with the deviation of calibration value curve;
Wearing setting voltage value on described voltage is charging process, and wearing setting voltage value under voltage is discharge process;
It is as follows that described calibration value curve generates process:
11) accumulator for not demarcating sets internal resistance value pendulous frequency, and internal cell resistance meansigma methods acquired under the same conditions is as calibration value;
12) charging process internal resistance calibration value curve and discharge process internal resistance calibration value curve are separately constituted with the calibration value that wears up and down under each setting voltage value;
Described charging process internal resistance calibration value curve and discharge process internal resistance calibration value curve be: using voltage as abscissa, internal resistance, as vertical coordinate, is interpolated formation full curve between the calibration value under each identical process difference voltage.
2. a kind of storage battery service life measurement method based on internal resistance and voltage measurement according to claim 1, it is characterised in that the deviation of the described internal resistance value judging to measure and calibration value curve judge accumulator life-span particularly as follows:
When internal resistance value and calibration value curve deviation are less than calibration value 10%, it is determined that battery condition is healthy;
When internal resistance value and calibration value curve deviation more than calibration value 10% less than calibration value 20%, it is determined that battery condition is for arousing attention;
When internal resistance value and calibration value curve deviation are more than calibration value 20%, it is determined that battery condition is for changing in time.
3. a kind of storage battery service life measurement method based on internal resistance and voltage measurement according to claim 2, it is characterised in that described internal resistance value is only limitted under the identical voltage conditions of identical process to compare gained with calibration value curve deviation.
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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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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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JP2000012104A (en) * | 1998-06-24 | 2000-01-14 | Matsushita Electric Ind Co Ltd | Method and device for displaying residual capacity of battery |
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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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