CN105203968B - A kind of on-line measurement system of lead-acid accumulator dump energy - Google Patents
A kind of on-line measurement system of lead-acid accumulator dump energy Download PDFInfo
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- CN105203968B CN105203968B CN201510691157.8A CN201510691157A CN105203968B CN 105203968 B CN105203968 B CN 105203968B CN 201510691157 A CN201510691157 A CN 201510691157A CN 105203968 B CN105203968 B CN 105203968B
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Abstract
The invention discloses a kind of on-line measurement system of lead-acid accumulator dump energy, including data acquisition module, data processing module and the display module being sequentially connected；Contain current sensor in the data acquisition module, the current sensor is monitored in real time to accumulator cell charging and discharging stream；The signal that the data processing module collects current sensor in real time integrates to the time, obtains the real-time discharge capacity of battery.Measuring system of the present invention is calculated using parameters of the depth of charge DOC as reflection battery charge state, the parameter using the actual capacity rather than nominal capacity of battery, can more reflect the actual conditions of battery；In addition, this measuring system periodically can carry out deep discharge to battery, recover and can correction C while capacitytValue, improve the accuracy of measuring system.
Description
Technical field
The present invention relates to a kind of on-line measurement system of lead-acid accumulator dump energy, belong to field of measuring technique.
Background technology
Battery is also referred to as secondary cell, is that obtained electric energy can be converted into chemical energy to store and chemical energy can be converted into electricity
A kind of device that can be exported.Lead-acid accumulator is widely used in the industry spots such as automobile, ship, petrochemical industry, is current tradition
And use one of extensive battery.
The charged state SOC of generally use battery characterizes the dump energy of battery at present, and traditional SOC measuring methods utilize
The nominal capacity of battery is calculated.However, with the influence of the factors such as aging, battery nominal capacity can change, thus
These measuring methods are caused promptly and accurately to reflect the actual conditions of battery.
It is current also to have using realizing the on-line measurement of battery electric quantity the methods of fuzzy logic or neutral net, these methods
Accurate prediction effect is achieved in theory.However, in engineering in practice, also there is algorithm complexity in the above method, into
This height, the deficiencies of hardware design difficulty is big.
The content of the invention
Goal of the invention：The technical problems to be solved by the invention are to provide a kind of online survey of lead-acid accumulator dump energy
Amount system, measuring system of the present invention is using parameter of the depth of charge as reflection battery charge state, and the parameter is using battery
Actual capacity amount is calculated.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
A kind of on-line measurement system of lead-acid accumulator dump energy, including be sequentially connected data acquisition module, data
Processing module and display module；Contain current sensor in the data acquisition module, the current sensor fills to battery
Discharge stream is monitored in real time；The signal that the data processing module collects current sensor in real time accumulates to the time
Point, obtain the real-time discharge capacity of battery；
The measuring system carries out on-line measurement using following steps to lead-acid accumulator dump energy：
Step 1, initiation parameter, including initial actual capacity Ct, nominal capacity CT, low battery threshold value and deep discharge threshold
Value；
Step 2, discharge condition flag bit d, charged state flag bit c are set, variable count, Q are setd, QcRepresent respectively
Store charge cycle number, equivalent discharge capacity, charge volume；
Step 3, when current sensor detects battery discharging, d is set to 1, electric discharge terminates that d then is set into 0；
Step 4, when current sensor detects battery charging, c is set to 0, charging terminates that c then is set into 1；
Step 5, when current sensor detect battery discharging interrupt, and now d be 1, calculate DOC and QeValue, DOC values
Output display system is shown；Otherwise step 7 is performed；
Step 6, if DOC is less than low battery threshold value, not enough power supply is shown, prompts user to stop using or charge as early as possible；By d
0 is set to, return to step 5；
Step 7, if c is 1, count is made to increase by 1, and calculate CtIf CtValue is less than nominal capacity CT80%, system carries
Show that user's battery life will come to an end；Otherwise, if CtValue is less than deep discharge threshold value, it is proposed that user carries out deep discharge；
Step 8, c is set to 0, return to step 3.
Wherein, the initial actual capacity CtBy under standard operating temperature and discharge rate battery carry out deep discharge reality
The electricity of releasing, data processing module is to C during usetValue is refreshed, and method is as shown in public formula (I)：
I.e.：C in a upper charge cycletValue and battery discharge capacity, the algebraical sum of actual charge volume, note are charged as just, electric discharge
It is negative；Wherein, in formula (I), k is charge cycle number, QeFor discharge capacity, QcFor charge volume, ηcFor charge efficiency, w is actual discharge
The correction factor of rate and battery charge efficiency relation.Regulation carries out deep discharge every half a year or appropriate cycle-index to battery,
To reach correction CtWith the effect of capacity restoration.
Measuring system of the present invention is using depth of charge DOC (Depth Of Charge) as reflection battery charge state
Parameter, using the actual capacity rather than nominal capacity of battery when the parameter calculates, it can more reflect the actual conditions of battery, it is described
DOC calculation formula is：
Wherein, in formula (II),
Wherein, CtRepresent the actual capacity of battery, QeIt is correction factor for real-time discharge capacity, 1, i is electric current, and t is the time；1
Correction factor is by temperature, electric current, obtained by the relationship graph analytical integration of the factor such as self discharge and aging and battery remaining power,
Relationship graph directly obtains when can be dispatched from the factory from battery.
Beneficial effect：Compared to prior art, measuring system of the present invention is using depth of charge DOC as reflection battery charge
The parameter of state, the parameter, using the actual capacity rather than nominal capacity of battery, therefore can more reflect the reality of battery when calculating
Border situation；In addition, this measuring system periodically can carry out deep discharge to battery, recover and can correction C while capacitytValue,
Improve the accuracy of measuring system.
Brief description of the drawings
Fig. 1 is the operational flow diagram of lead-acid accumulator dump energy on-line measurement system of the present invention；
Fig. 2 is the system block diagram of lead-acid accumulator dump energy on-line measurement system of the present invention.
Embodiment
According to following embodiments, the present invention may be better understood.It is however, as it will be easily appreciated by one skilled in the art that real
Apply the content described by example and be merely to illustrate the present invention, without should be also without limitation on sheet described in detail in claims
Invention.
Present invention is further described with specific embodiment below in conjunction with the accompanying drawings.
With reference to Fig. 1~2, the on-line measurement system of lead-acid accumulator dump energy of the present invention, including the data being sequentially connected
Acquisition module, data processing module and display module；Contain current sensor in data acquisition module, current sensor is to electric power storage
Pond charging or discharging current is monitored in real time；The signal that data processing module collects current sensor in real time accumulates to the time
Point, obtain the real-time discharge capacity of battery and processing is modified to it；
Measuring system of the present invention carries out on-line measurement using following steps to lead-acid accumulator dump energy：
Step 1, initiation parameter, including initial actual capacity Ct, nominal capacity CT, low battery threshold value is 0.2CTAnd depth
Discharge threshold 0.9CT；
Step 2, discharge condition flag bit d, charged state flag bit c are set, variable count, Q are setd, QcRepresent respectively
Store charge cycle number, equivalent discharge capacity, charge volume；
Step 3, when current sensor detects battery discharging, d is set to 1, electric discharge terminates that d then is set into 0；
Step 4, when current sensor detects battery charging, c is set to 0, charging terminates that c then is set into 1；
Step 5, when current sensor detect battery discharging interrupt, and now d be 1, calculate DOC and QeValue, DOC values
Output display system is shown；Otherwise step 7 is performed；
Step 6, if DOC is less than 0.2CT, not enough power supply is shown, prompts user to stop using or charge as early as possible；D is set to
0, return to step 5；
Step 7, if c is 1, count is made to increase by 1, and calculate CtIf CtValue is less than nominal capacity CT80% (i.e. CtValue
Less than nominal capacity 0.8CT), system prompts user battery life will come to an end；Otherwise, if CtValue is less than 0.9CT, it is proposed that user
Carry out deep discharge；
Step 8, c is set to 0, return to step 3.
Wherein, CtInitial value is arranged to battery under the conditions of standard operating temperature and discharge rate and carries out that deep discharge is actual to be put
The electricity gone out, data processing module is to C during usetValue is refreshed, and method is as shown in public formula (I)：
I.e.：C in a upper charge cycletValue and battery discharge capacity, the algebraical sum of actual charge volume, note are charged as just, electric discharge
It is negative；Wherein, in formula (I), k is charge cycle number, QeFor discharge capacity, QcFor charge volume, ηcFor charge efficiency, w represents actually to put
The correction factor of electric rate and battery charge efficiency relation, the coefficient also can be by discharge rates that battery manufacturer provides to charge efficiency shadow
Loud relationship graph is drawn, it is specified that deep discharge is carried out to battery every half a year or appropriate cycle-index, to reach correction CtWith
The effect of capacity restoration.
Measuring system of the present invention is using depth of charge DOC (Depth Of Charge) as reflection battery charge state
Parameter, the parameter calculate when using battery actual capacity rather than nominal capacity, it is not only relevant with battery current state, also with electricity
Pond discharge scenario in future is relevant, can more reflect the actual conditions of battery, and DOC calculation formula is：
Wherein, in formula (II),
Wherein, CtRepresent the actual capacity of battery, QeIt is correction factor for real-time discharge capacity, 1, i is electric current, and t is the time；1
Correction factor is by temperature, electric current, obtained by the relationship graph analytical integration of the factor such as self discharge and aging and battery remaining power,
Relationship graph directly obtains when can be dispatched from the factory from battery.
Measuring system of the present invention, can be trueer using the battery DOC e measurement technologies based on ampere-hour method from engineering reality
Reflect the actual conditions of battery on the spot；The executable degree of algorithm is improved, reduces Hardware Design cost, with high accuracy, efficiently
The advantages of rate and stable performance, conveniently promote the use of.
Claims (3)
- A kind of 1. on-line measurement system of lead-acid accumulator dump energy, it is characterised in that：Including the data acquisition being sequentially connected Module, data processing module and display module；Contain current sensor, the current sensor pair in the data acquisition module Accumulator cell charging and discharging stream is monitored in real time；The signal that the data processing module collects current sensor in real time is to the time Integrated, obtain the real-time discharge capacity of battery；The measuring system carries out on-line measurement using following steps to lead-acid accumulator dump energy：Step 1, initiation parameter, including initial actual capacity Ct, nominal capacity CT, low battery threshold value and deep discharge threshold value；Step 2, discharge condition flag bit d, charged state flag bit c are set, variable count, Q are setd, QcStorage is represented respectively Charge cycle number, equivalent discharge capacity, charge volume；Step 3, when current sensor detects battery discharging, d is set to 1, electric discharge terminates that d then is set into 0；Step 4, when current sensor detects battery charging, c is set to 0, charging terminates that c then is set into 1；Step 5, when current sensor detect battery discharging interrupt, and now d be 1, calculate DOC and discharge capacity QeValue, DOC Value output display system is shown；Otherwise step 7 is performed；Step 6, if DOC is less than low battery threshold value, not enough power supply is shown, prompts user to stop using or charge as early as possible；D is set to 0, return to step 5；Step 7, if c is 1, count is made to increase by 1, and calculate CtIf CtValue is less than nominal capacity CT80%, system prompt use Family battery life will come to an end；Otherwise, if CtValue is less than deep discharge threshold value, it is proposed that user carries out deep discharge；Step 8, c is set to 0, return to step 3.
- 2. the on-line measurement system of lead-acid accumulator dump energy according to claim 1, it is characterised in that：In step 1, The initial actual capacity CtThe actual electricity released of deep discharge is carried out for battery under standard operating temperature and discharge rate, is made Data processing module is to C duringtThe formula that value is calculated is：<mrow> <msub> <mi>C</mi> <mi>t</mi> </msub> <mrow> <mo>(</mo> <mi>k</mi> <mo>)</mo> </mrow> <mo>=</mo> <msub> <mi>C</mi> <mi>t</mi> </msub> <mrow> <mo>(</mo> <mi>k</mi> <mo>-</mo> <mn>1</mn> <mo>)</mo> </mrow> <mo>-</mo> <mfrac> <msub> <mi>Q</mi> <mi>e</mi> </msub> <mrow> <msub> <mi>w&eta;</mi> <mi>c</mi> </msub> </mrow> </mfrac> <mo>+</mo> <msub> <mi>Q</mi> <mi>C</mi> </msub> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mi>I</mi> <mo>)</mo> </mrow> <mo>;</mo> </mrow>Wherein, in formula (I), k is charge cycle number, QeFor discharge capacity, QcFor charge volume, ηcFor charge efficiency, w is actual discharge The correction factor of rate and battery charge efficiency relation.
- 3. the on-line measurement system of lead-acid accumulator dump energy according to claim 1, it is characterised in that：In step 5, The calculation formula of the DOC is：<mrow> <mi>D</mi> <mi>O</mi> <mi>C</mi> <mo>=</mo> <mfrac> <mrow> <msub> <mi>C</mi> <mi>t</mi> </msub> <mo>-</mo> <msub> <mi>Q</mi> <mi>e</mi> </msub> </mrow> <msub> <mi>C</mi> <mi>t</mi> </msub> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mi>I</mi> <mi>I</mi> <mo>)</mo> </mrow> <mo>;</mo> </mrow>Wherein, in formula (II),Wherein, CtRepresent the actual capacity of battery, QeFor real-time discharge capacity, l is correction factor, and i is electric current, and t is the time.
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| CN106842058B (en) * | 2017-02-28 | 2022-04-01 | 上海传英信息技术有限公司 | Electric quantity control system and method based on intelligent terminal |
| CN108646197B (en) * | 2018-07-25 | 2020-08-07 | 清华大学 | Dynamic monitoring method for electric quantity state of automobile battery |
| CN109085508A (en) * | 2018-08-30 | 2018-12-25 | 深圳市道通智能航空技术有限公司 | Determine method, apparatus, chip, battery and the aircraft of the charged state of battery |
| DE102018217625A1 (en) | 2018-10-15 | 2020-04-16 | Continental Automotive Gmbh | Method for operating a battery sensor and battery sensor |
| CN109239611A (en) * | 2018-11-26 | 2019-01-18 | 努比亚技术有限公司 | Terminal battery electricity quantity calibration method, terminal and computer readable storage medium |
| CN113991718B (en) * | 2021-11-19 | 2024-01-02 | 上海沪臻智能科技有限公司 | Peak clipping and valley filling self-adaptive system and method for lead-acid battery |
| CN114520822A (en) * | 2022-02-16 | 2022-05-20 | 东集技术股份有限公司 | Monitoring system, method, equipment and storage medium for equipment battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200428011A (en) * | 2004-08-30 | 2004-12-16 | Qqe Technology Co Ltd | Measurement method capable of identifying whether a secondary battery is over-discharged |
| CN1752766A (en) * | 2004-09-22 | 2006-03-29 | 量质能科技股份有限公司 | Measuring method used for distinguishing whether secondary ballery is over discharged |
| CN103513190A (en) * | 2013-10-24 | 2014-01-15 | 国家电网公司 | Method and system for testing consistency of performances of batteries |
| CN104241718A (en) * | 2013-06-18 | 2014-12-24 | 联想(北京)有限公司 | Battery charging method and battery charging device |
-
2015
- 2015-10-22 CN CN201510691157.8A patent/CN105203968B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200428011A (en) * | 2004-08-30 | 2004-12-16 | Qqe Technology Co Ltd | Measurement method capable of identifying whether a secondary battery is over-discharged |
| CN1752766A (en) * | 2004-09-22 | 2006-03-29 | 量质能科技股份有限公司 | Measuring method used for distinguishing whether secondary ballery is over discharged |
| CN104241718A (en) * | 2013-06-18 | 2014-12-24 | 联想(北京)有限公司 | Battery charging method and battery charging device |
| CN103513190A (en) * | 2013-10-24 | 2014-01-15 | 国家电网公司 | Method and system for testing consistency of performances of batteries |
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