CN108037458A - A kind of method of quick detection lead-acid accumulator health status - Google Patents
A kind of method of quick detection lead-acid accumulator health status Download PDFInfo
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- CN108037458A CN108037458A CN201711177625.5A CN201711177625A CN108037458A CN 108037458 A CN108037458 A CN 108037458A CN 201711177625 A CN201711177625 A CN 201711177625A CN 108037458 A CN108037458 A CN 108037458A
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- voltage
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- acid accumulator
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
- G01R31/3648—Constructional arrangements comprising digital calculation means, e.g. for performing an algorithm
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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Abstract
The invention discloses a kind of method of quick detection lead-acid accumulator health status, comprise the following steps, whether the voltage for detecting lead-acid accumulator is over-pressed and under-voltage, and record its rated capacity, detect the initial terminal voltage of lead-acid accumulator, lead-acid accumulator is connected upper power circuit, can constant current discharge, voltage after electric discharge during detector electric discharge cut-off, record the terminal voltage that leading portion voltage is detected in discharge process to electric discharge sampling when initial, detect the blanking voltage at the end of the electric discharge sampling of storage battery, capacity that calculating accumulator can be put into and pour simultaneously carries out comparing calculation with rated capacity, the voltage detected in S1 is set to initial voltage, it is denoted as U1, S1 includes first voltage detection module.The invention avoids in the past using electric discharge shelve the detection time cycle it is long the shortcomings that, can quickly calculate time for being put into and pouring capacity, save detection of storage battery, improve detection efficiency, detection leans on property strong.
Description
Technical field
The present invention relates to lead-acid accumulator detection technique field, more particularly to a kind of quick detection lead-acid accumulator health shape
The method of state.
Background technology
At present, lead-acid accumulator is otherwise known as conventional accumulators, refers to that electrode is mainly made of lead and its oxide, electricity
Solution liquid is a kind of storage battery of sulfuric acid solution.Under state-of-charge, cathode main component is brown lead oxide, and anode main component is
Lead;Under discharge condition, the main component of positive and negative anodes is lead sulfate.It is divided into plumbic acid water battery and plumbic acid maintenance-free battery.Mainly
Advantage is voltage stabilization, cheap, and shortcoming is than can low (i.e. the electric energy of per kilogram accumulators store), service life is short and day
Often safeguard that frequent lead-acid accumulator is used as Emergency Power in some cases sometimes.Stored for plumbic acid used in such a purpose
Battery is referred to as fixed lead-acid accumulator.This battery is parallel-connected in load with industrial power, and normally uses industrial electro
Source low current charge, to keep lead-acid accumulator memory capacity to be maintained at 100% state, this is referred to as floating charging.Work as industrial electro
When the abnormal condition of such as power failure occurs in source, lead-acid accumulator can replace industrial power supply load electric.
Fixed lead-acid accumulator a kind of like this, substantial amounts of lead-acid accumulator are used in series.Due to such a fixed lead
Acid accumulator will at every moment carry out floating charging, so it is known that lead-acid accumulator runs down, causing cannot be to negative
Carry and enough electric power be provided, storage battery all there are the problem of aging in use for some time, it is therefore desirable to storage battery
Health status is detected, detection method detection time it is long, detection efficiency is low, and therefore, there is an urgent need for a kind of quick detection lead
The method of acid accumulator health status.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of quick detection lead-acid accumulator health status
Method.
A kind of method of quick detection lead-acid accumulator health status proposed by the present invention, comprises the following steps：
S1：It is whether over-pressed and under-voltage to detect the voltage of lead-acid accumulator, and records its rated capacity；
S2：Detect the initial terminal voltage of lead-acid accumulator；
S3：Lead-acid accumulator is connected upper power circuit, can constant current discharge；
S4：Voltage after electric discharge during detector electric discharge cut-off；
S5：Record the terminal voltage that leading portion voltage is detected in discharge process to electric discharge sampling when initial；
S6：Detect the blanking voltage at the end of the electric discharge sampling of storage battery；
S7：Capacity that calculating accumulator can be put into and pour simultaneously carries out comparing calculation with rated capacity.
Preferably, the voltage detected in the S1 is set to initial voltage, is denoted as U1, and S1 includes first voltage detection module, member
Voltage detection module connects lead-acid accumulator by the detection column of voltage detector and is detected, the normal voltage of lead-acid accumulator
It is denoted as U0 rated capacities and is denoted as C0.
Preferably, the voltage in the S3 and S4 by discharge voltage detection module module to the lead-acid accumulator before electric discharge
It is detected, the voltage of electric discharge sampling initial end is denoted as U3, and the discharge voltage detection module after the knot that discharges is to lead-acid accumulator
Voltage is detected again, and the terminal voltage at the end of discharge voltage gos up is denoted as U2, and lead-acid accumulator is with constant current discharge
When electric current be denoted as I.
Preferably, the terminal voltage at the end of the S5 samples electric discharge by sampled voltage detection module is detected, and is examined
Survey result and be denoted as U4.
Preferably, the S6 is used to detect the cut-off at the end of the electric discharge sampling of storage battery by blanking voltage detection module
Voltage, blanking voltage are denoted as U5.
Preferably, the S7 is calculated and timing by computing module and timing module, and voltage is by U3 to U4 during calculating
Between terminal voltage variable quantity be denoted as △ U, voltage is denoted as △ C, discharge process by the volume change amount of U3 to U4 in discharge process
Middle voltage is denoted as △ T0 as the time used in U1 to U3, and voltage is denoted as △ T1 as the time used in U3 to U4 in discharge process, puts
Voltage is denoted as K by the electric discharge slope of U3 to U4 in electric process, then K calculation formula are：
K=△C/△U=I△T1/△U=I△T1/（U3-U4）=AC0△T1/（U3-U4）
Voltage is by the linear equation of U3 to U4 in discharge process：
Fx=K（x-U5）=AC0△T1/（U3-U4）（x-U5）
F corresponding to U3 when detecting（U3）The current capacity of lead-acid accumulator, F when thinking（U3）Calculation formula be：
F（U3）=AC0△T1/（U3-U4）（U3-U5）
The battery capacity F that lead-acid accumulator to be detected can pour and release is derived according to derivation formula interface（U3）.
Preferably, the health status of the lead-acid accumulator is represented with SOH, and the calculation formula of SOH is denoted as SOH=F
（U3）The health status of 100% storage batteries of/C0 X, SOH represent the deterioration of storage battery, degree of aging, F（U3）To treat sounding lead
The capacity that acid accumulator can be poured and released, C0 are the rated capacity of storage battery.
In the present invention, storage battery can be measured in battery discharging by the setting of discharge voltage detection module
Voltage, and the setting of blanking voltage detection module can quickly detect voltage when electric discharge ends, and pass through the data of measurement
The time for being put into and pouring capacity, save detection of storage battery can be quickly calculated, detection efficiency is improved, avoids
In the past using electric discharge shelve the detection time cycle it is long the shortcomings that, and detect by property it is strong, accuracy of detection height.
Brief description of the drawings
Fig. 1 is a kind of flow diagram of the method for quick detection lead-acid accumulator health status proposed by the present invention；
Fig. 2 is a kind of detection module schematic diagram of the method for quick detection lead-acid accumulator health status proposed by the present invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.
With reference to Fig. 1-2, a kind of method of quick detection lead-acid accumulator health status, comprises the following steps：
S1：It is whether over-pressed and under-voltage to detect the voltage of lead-acid accumulator, and records its rated capacity；
S2：Detect the initial terminal voltage of lead-acid accumulator；
S3：Lead-acid accumulator is connected upper power circuit, can constant current discharge；
S4：Voltage after electric discharge during detector electric discharge cut-off；
S5：Record the terminal voltage that leading portion voltage is detected in discharge process to electric discharge sampling when initial；
S6：Detect the blanking voltage at the end of the electric discharge sampling of storage battery；
S7：Capacity that calculating accumulator can be put into and pour simultaneously carries out comparing calculation with rated capacity.
In the present invention, the voltage detected in S1 is set to initial voltage, is denoted as U1, and S1 includes first voltage detection module, member electricity
Pressure detection module connects lead-acid accumulator by the detection column of voltage detector and is detected, the normal voltage note of lead-acid accumulator
The voltage by discharge voltage detection module module to the lead-acid accumulator before electric discharge is denoted as in C0, S3 and S4 for U0 rated capacities
It is detected, the voltage of electric discharge sampling initial end is denoted as U3, and the discharge voltage detection module after the knot that discharges is to lead-acid accumulator
Voltage is detected again, and the terminal voltage at the end of discharge voltage gos up is denoted as U2, and lead-acid accumulator is with constant current discharge
When electric current be denoted as I, the terminal voltage at the end of S5 samples electric discharge by sampled voltage detection module is detected, testing result
U4 is denoted as, S6 is used to detect the blanking voltage at the end of the electric discharge sampling of storage battery, cut-off electricity by blanking voltage detection module
Pressure is denoted as U5, and S7 is calculated by computing module and timing module and timing, and voltage is by the end electricity between U3 to U4 during calculating
Pressure variable quantity is denoted as △ U, and voltage is denoted as △ C by the volume change amount of U3 to U4 in discharge process, and voltage is by U1 in discharge process
△ T0 are denoted as to the time used in U3, and voltage is denoted as △ T1 as the time used in U3 to U4 in discharge process, electricity in discharge process
Pressure is denoted as K by the electric discharge slope of U3 to U4, then K calculation formula are：
K=△C/△U=I△T1/△U=I△T1/（U3-U4）=AC0△T1/（U3-U4）
Voltage is by the linear equation of U3 to U4 in discharge process：
Fx=K（x-U5）=AC0△T1/（U3-U4）（x-U5）
F corresponding to U3 when detecting（U3）The current capacity of lead-acid accumulator, F when thinking（U3）Calculation formula be：F
（U3）=AC0△T1/（U3-U4）（U3-U5）Derive that lead-acid accumulator to be detected can be poured and put according to derivation formula interface
The battery capacity F gone out（U3）, the health status of lead-acid accumulator is represented with SOH, and the calculation formula of SOH is denoted as SOH=F
（U3）The health status SOH of 100% storage batteries of/C0 X represents the deterioration of storage battery, degree of aging, it is defined as in condition
The capacity that lower storage battery can be poured or released accounts for the percentage of battery rating, SOH value when storage battery just appears on the scene
For 100/%, with the use, decline and aging of storage battery, the SOH value of storage battery will constantly reduce, and according to the rules, work as storage
Storage battery can not then use when the SOH value of battery is less than 80%, wherein F（U3）It can pour and put for lead-acid accumulator to be measured
The capacity gone out, C0 are the rated capacity of storage battery.
Its rated capacity is first recorded during use, then detects the initial end of lead-acid accumulator by first voltage detection module again
Lead-acid accumulator, is then connected upper power circuit by voltage, and recording, can constant current discharge, pass through the electricity that discharges at this time
Terminal voltage of the detection module detection in electric discharge and the voltage after electric discharge are pressed, is detected and discharged by sampled voltage detection module
Voltage during detector electric discharge cut-off afterwards, then records the end electricity that leading portion voltage is detected in discharge process to electric discharge sampling when initial
Press and record the time, lead to after the detection of the blanking voltage at the end of sampling of discharging of storage battery is detected by blanking voltage detection module
Cross the capacity that computing module calculating accumulator can be put into and pour and carry out comparing calculation with rated capacity, finally according to calculating
As a result the health status of storage battery is measured.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
- A kind of 1. method of quick detection lead-acid accumulator health status, it is characterised in that comprise the following steps：S1：It is whether over-pressed and under-voltage to detect the voltage of lead-acid accumulator, and records its rated capacity；S2：Detect the initial terminal voltage of lead-acid accumulator；S3：Lead-acid accumulator is connected upper power circuit, can constant current discharge；S4：Voltage after electric discharge during detector electric discharge cut-off；S5：Record the terminal voltage that leading portion voltage is detected in discharge process to electric discharge sampling when initial；S6：Detect the blanking voltage at the end of the electric discharge sampling of storage battery；S7：Capacity that calculating accumulator can be put into and pour simultaneously carries out comparing calculation with rated capacity.
- 2. the method for a kind of quick detection lead-acid accumulator health status according to claim 1, it is characterised in that described The voltage detected in S1 is set to initial voltage, is denoted as U1, and S1 includes first voltage detection module, and first voltage detection module passes through voltage The detection column connection lead-acid accumulator of detector is detected, and the normal voltage of lead-acid accumulator is denoted as U0 rated capacities and is denoted as C0。
- 3. the method for a kind of quick detection lead-acid accumulator health status according to claim 1, it is characterised in that described The voltage of the lead-acid accumulator before electric discharge is detected by discharge voltage detection module module in S3 and S4, electric discharge sampling is just The voltage at beginning is denoted as U3, and the discharge voltage detection module after electric discharge is tied detects the voltage of lead-acid accumulator, puts again Terminal voltage at the end of piezoelectric voltage is gone up is denoted as U2, and electric current when lead-acid accumulator is with constant current discharge is denoted as I.
- 4. the method for a kind of quick detection lead-acid accumulator health status according to claim 1, it is characterised in that described Terminal voltage at the end of S5 samples electric discharge by sampled voltage detection module is detected, and testing result is denoted as U4.
- 5. the method for a kind of quick detection lead-acid accumulator health status according to claim 1, it is characterised in that described S6 is used to detect the blanking voltage at the end of the electric discharge sampling of storage battery by blanking voltage detection module, and blanking voltage is denoted as U5。
- 6. the method for a kind of quick detection lead-acid accumulator health status according to claim 1, it is characterised in that described S7 is calculated by computing module and timing module and timing, and voltage is remembered by the terminal voltage variable quantity between U3 to U4 during calculating For △ U, voltage is denoted as △ C by the volume change amount of U3 to U4 in discharge process, and voltage is as used in U1 to U3 in discharge process Time is denoted as △ T0, and voltage is denoted as △ T1 as the time used in U3 to U4 in discharge process, and voltage is by U3 to U4 in discharge process Electric discharge slope be denoted as K, then K calculation formula are：K=△C/△U=I△T1/△U=I△T1/（U3-U4）=AC0△T1/（U3-U4）Voltage is by the linear equation of U3 to U4 in discharge process：Fx=K（x-U5）=AC0△T1/（U3-U4）（x-U5）F corresponding to U3 when detecting（U3）The current capacity of lead-acid accumulator, F when thinking（U3）Calculation formula be：F（U3）=AC0△T1/（U3-U4）（U3-U5）The battery capacity F that lead-acid accumulator to be detected can pour and release is derived according to derivation formula interface（U3）.
- 7. the method for a kind of quick detection lead-acid accumulator health status according to claim 1, it is characterised in that described The health status of lead-acid accumulator is represented with SOH, and the calculation formula of SOH is denoted as SOH=F（U3）/ C0 X 100%, storage battery Health status, SOH represents the deterioration of storage battery, degree of aging, F（U3）It can pour and release for lead-acid accumulator to be measured Capacity, C0 be storage battery rated capacity.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108963355A (en) * | 2018-05-21 | 2018-12-07 | 台州市皓仔邦工业设计有限公司 | The quick detection of electric vehicle lead-acid battery group and method for maintaining |
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| CN101101323A (en) * | 2007-07-23 | 2008-01-09 | 周汉文 | Lithium battery capacity quick detection method |
| CN105242214A (en) * | 2015-10-26 | 2016-01-13 | 王立晖 | Storage battery capacity rapid detection method |
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Application publication date: 20180515 |