CN104198942B - A kind of online judgement system of analysing valve control type lead-acid accumulator battery failure - Google Patents
A kind of online judgement system of analysing valve control type lead-acid accumulator battery failure Download PDFInfo
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- CN104198942B CN104198942B CN201410377997.2A CN201410377997A CN104198942B CN 104198942 B CN104198942 B CN 104198942B CN 201410377997 A CN201410377997 A CN 201410377997A CN 104198942 B CN104198942 B CN 104198942B
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- 239000002253 acid Substances 0.000 title claims abstract description 37
- 208000032953 Device battery issue Diseases 0.000 title claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 22
- 238000013480 data collection Methods 0.000 claims abstract description 4
- 230000004913 activation Effects 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 25
- 238000007599 discharging Methods 0.000 claims description 10
- 238000011217 control strategy Methods 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000001994 activation Methods 0.000 description 39
- 230000007257 malfunction Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 238000012795 verification Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
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Abstract
The invention discloses a kind of online judgement system of analysing valve control type lead-acid accumulator battery failure, including analysing valve control type lead-acid accumulator battery group, monitoring module and battery management module, the battery management modular electrical connects analysing valve control type lead-acid accumulator battery group, and the monitoring module is electrically connected battery management module；Analysing valve control type lead-acid accumulator battery group described in the monitoring module control battery management module auto-activation, voltage, electric current and corresponding discharge and recharge time described in the battery management module auto-activation during analysing valve control type lead-acid accumulator battery group, during automatic data collection charge and discharge；Voltage, electric current and corresponding discharge and recharge time data during the charge and discharge gathered by the monitoring module reception battery management module, and assess automatically whether the analysing valve control type lead-acid accumulator battery group fails according to the data for receiving.The present invention judges whether accumulator fails online, improves online rate, the reliability of distribution terminal equipment.
Description
Technical field
The present invention relates in distribution terminal analysing valve control type lead-acid accumulator battery detection field, a kind of particularly VRLA stores
The online judgement system of battery failure.
Background technology
Analysing valve control type lead-acid accumulator battery（Hereinafter referred to as accumulator）It is a kind of high maintenance-free battery of energy density, in a large number should
In electrical power distribution automatization system, can ensure that when distribution line failure has a power failure distribution terminal equipment normally runs, realize feeder line
Automation function.Feeder automation function is to improve power supply reliability, realize that electrical power distribution automatization system is most basic, core work(
Energy.
Due to the accumulator practical application enormous amount that controller switching equipment is multi-point and wide-ranging therefore matched；Distribution sets simultaneously
Back-up cloth is wide, is often installed on open air or simply covers place, and during operation, temperature is with time, season, climate change, difference variation
Greatly, its running environment is severe；Adopt simple constant current, constant-voltage charge pattern more existing accumulator, accumulator super-charge, cross that to put be normal
State；Controller switching equipment attendant is few, and development is made regular check on heavy with difficult in maintenance.
Due to above reason, battery malfunction is fast in the application for accumulator, actual motion life-span and projected life gap are huge
Greatly, badly influence the practical propulsion of electrical power distribution automatization system.Therefore, during battery applications, need to electric power storage
Pond carries out failure inspection, ensures that distribution terminal equipment normally runs.
The methods for adopting periodical inspection outward appearance and the measurement internal resistance of cell are checked in distribution at present to battery malfunction more.Periodically
Make an inspection tour outward appearance and be difficult to accurately judgement, fault rate is higher.The measurement internal resistance of cell adopts battery Inner Resistance Tester in Virtual Instrument, the method to need first to
Battery gets back to the laboratory of specialty offline and measures, it is necessary to interrupts distribution terminal operation, therefore can only be arranged in equipment inspection
Carry out when repairing, although this method accuracy is high, testing equipment is expensive, need during detection power failure, operating time length, complexity,
Promptness is poor, it is difficult to meet the requirement of power supply reliability.
The content of the invention
To solve the above problems, it is an object of the invention to provide a kind of online judgement of analysing valve control type lead-acid accumulator battery failure
System, judges whether accumulator fails online, improves online rate, the reliability of distribution terminal equipment, is accumulator in power distribution network
A difficult problem for operation maintenance provides a kind of feasible Practical Solution.
The present invention solves the technical scheme that adopted of its problem：
A kind of online judgement system of analysing valve control type lead-acid accumulator battery failure, including analysing valve control type lead-acid accumulator battery group, monitoring mould
Block and battery management module, the battery management modular electrical connect analysing valve control type lead-acid accumulator battery group, the monitoring module
Electrical connection battery management module；
Analysing valve control type lead-acid accumulator battery group described in the monitoring module control battery management module auto-activation, the valve control
One auto-activation of formula lead-acid batteries includes a complete charge and discharge process, and the battery management module is certainly
It is dynamic when activating the analysing valve control type lead-acid accumulator battery group, voltage, electric current during automatic data collection charge and discharge and corresponding fill
Discharge time；
The monitoring module receives voltage during the charge and discharge gathered by battery management module, electric current and right
The discharge and recharge time data answered, and assess automatically whether the analysing valve control type lead-acid accumulator battery group fails according to the data for receiving.
Further, the complete charging that a cycle auto-activation of the analysing valve control type lead-acid accumulator battery group includes
With discharge process, the process comprises the following steps：
Battery management module charge closing power supply the electric discharge of starting storage battery group；
Collection discharge current Ifi and voltage U；
When the voltage U of accumulator battery is less than the activation final voltage for setting, stops electric discharge, and calculate discharge capacity Sfi
And discharge time t；
Open charge power supply and be converted into charged state, and the charge control strategy by setting is charged；
Electric current Ici and voltage U in collection charging process；
When floating charging flow valuve of charging current Ici less than setting, charging complete mark is set, and calculates charging capacity
Sci and charging interval t；
The alphabetical i represents the number of times of auto-activation.
Further, the monitoring module judges whether accumulator battery fails by the following method：
（1）Monitoring module was made the following judgment to the voltage, electric current and the corresponding discharge and recharge time that receive：
Rule of judgment 1：Whether i ＆ lt storage battery activation charging capacity Sci is less than or equal to K × relative charging rated capacity
Sxcn；
Rule of judgment 2：Whether i ＆ lt activation discharging of storage battery capacity Sfi is less than or equal to K × relative discharge rated capacity
Sxfn；
Rule of judgment 3：Whether Max { Sci, Sfi } is less than or equal to 0.25 × Max { Sn, Sxcn }, and Sn is accumulator battery
Rated capacity；
Wherein, K is more than or equal to 0 and is less than or equal to 1；
（2）When any one establishment of Rule of judgment 1,2 and 3, then judge that this accumulator battery fails；
（3）With the increase of i values, circulation step（1）With（2）If meeting step continuous three times（2）, then judge this electric power storage
Pond group failure.
Further, i ＆ lt charging capacity Sci is calculated using equation below with discharge capacity Sfi：
I ＆ lt storage battery activation charging capacity is calculated：Sci=△ t × ∑ Icij, (j=0 ... .n)；
I ＆ lt activation discharging of storage battery calculation of capacity：Sfi=△ t × ∑ Ifij, (j=0 ... .m）；
Wherein, △ t are the time at equal intervals during correspondence charge or discharge, relative charging rated capacity Sxcn=
Max { Sci }, relative discharge rated capacity Sxfn=Sxcn.
Further, the K=0.8.
The invention has the beneficial effects as follows：
Online judgement system of the present invention using a kind of failure of analysing valve control type lead-acid accumulator battery, can real-time judge accumulator online
Whether group fails, and judge process need not have a power failure, and judges effect accurately, and economical, simple, with very high practical valency
Value, so as to improve the manpower and financial resources that distribution terminal O＆M can be reduced while power distribution automation reliability.
Description of the drawings
The invention will be further described with example below in conjunction with the accompanying drawings.
Fig. 1 is the connection diagram of online judgement system of the present invention；
Fig. 2 is the schematic flow sheet of a charge and discharge process of the invention.
Specific embodiment
In the application, the activation of analysing valve control type lead-acid accumulator battery is divided into activation manually, remote control activation and cycle auto-activation, handss
When dynamic activation, remote control activation are generally used for overhaul of the equipments, test, access times are few, tied in the activation process for possessing complete automatically
Shu Shi, the present invention are equal to auto-activation.When auto-activation is that equipment normally runs, according to the cycle T for setting by distribution terminal
One kind of startup is online to be activated, and the cycle T is substantially stationary constant after putting into operation.
Diminish as analysing valve control type lead-acid accumulator battery failure is mainly characterized by internal resistance increase, discharge capacity, routine assessments method
Tested by offline verification discharge capacity：Accumulator terminal is worked as to load discharge with constant current under accumulator off-line state
Then stop electric discharge when voltage reaches final discharging voltage value, the capacity released by whole process is exactly storage battery practical capacity.Should
Method primary need accumulator is offline, its two by battery discharging to final voltage.Due to detection when need special equipment from
Line is carried out, therefore, the detection promptness of the accumulator that fails is poor, costly；And the distribution of accumulator is wide in power distribution network, quantity is huge
Greatly, preservation ＆ testing needs to put into substantial amounts of man power and material.
The discharge capacity test of verification property judges that the basis for estimation of battery malfunction is：Storage battery practical capacity Si≤0.8 ×
Rated capacity Sn.From the foregoing, in operation, Si, Sn are known variables, wherein, Sn can be by solution of adjusting but practical
Property is to be improved.The present invention discovery, the charge and discharge electric capacity of accumulator in activation stage in theory analysis and substantial amounts of verification experimental verification
Measure and there is similarity with the basis for estimation in the discharge capacity test of verification property with the relation between relative rated capacity, therefore propose
The relative capacity determination methods of battery malfunction, carry out battery malfunction using activation charging/discharging voltage scoping phase data and sentence
It is disconnected, to solve a difficult problem for online evaluation battery malfunction.
With reference to shown in Fig. 1, the preferred embodiments of the present invention provide a kind of sentencing online for analysing valve control type lead-acid accumulator battery failure
Disconnected system, including analysing valve control type lead-acid accumulator battery group, monitoring module and battery management module, the battery management modular electrical
Connection analysing valve control type lead-acid accumulator battery group, the monitoring module are electrically connected battery management module；
Analysing valve control type lead-acid accumulator battery group described in the monitoring module control battery management module auto-activation, the valve control
One auto-activation of formula lead-acid batteries includes a complete charge and discharge process, and the battery management module is certainly
It is dynamic when activating the analysing valve control type lead-acid accumulator battery group, voltage, electric current during automatic data collection charge and discharge and corresponding fill
Discharge time；
The monitoring module receives voltage during the charge and discharge gathered by battery management module, electric current and right
The discharge and recharge time data answered, and assess automatically whether the analysing valve control type lead-acid accumulator battery group fails according to the data for receiving.
In the present invention, battery management module is realized the control of storage battery activation process and gathers storage battery activation process electricity
The information such as pressure, electric current, time.Storage battery activation process includes a complete electric discharge and two subprocess that charge.The electricity of collection
Press and terminate and activate the moment for terminating of charging for automatically controlling activation discharge, the electric current of collection is used to calculate in activation process
Discharge capacity and charging capacity.
Monitoring module receives the data of battery management module collection, including discharge and recharge time, the capacity of activation process, shape
Into storage battery activation state information history data base, calculate to calculate with historical data trend analysiss by instant data analysiss and mutually tie
The method of conjunction is estimated to the performance of accumulator, the result of assessment be accumulator it is normal/failure.
One auto-activation process of analysing valve control type lead-acid accumulator battery group includes a complete charge and discharge process, reference
Shown in Fig. 2, the realization of this process is comprised the following steps：
Battery management module charge closing power supply the electric discharge of starting storage battery group；
Collection discharge current Ifi and voltage U；
When the voltage U of accumulator battery is less than the activation final voltage for setting, stops electric discharge, and calculate discharge capacity Sfi
And discharge time t；
Open charge power supply and be converted into charged state, and the charge control strategy by setting is charged, the setting
The patent document that charge control strategy has been applied with reference to applicant（Its Application No. 201310374925.8）In charging when
Maintenance step；
Electric current Ici and voltage U in collection charging process；
When floating charging flow valuve of charging current Ici less than setting, charging complete mark is set, and calculates charging capacity
Sci and charging interval t；
The alphabetical i represents the number of times of periodicity auto-activation.
For any one auto-activation process, during the charge and discharge that monitoring module can be received by which
Voltage, electric current and corresponding discharge and recharge time data, judge whether accumulator battery fails, its each judge process is as follows：
（1）Monitoring module was made the following judgment to the voltage, electric current and the corresponding discharge and recharge time that receive：
Judge 1：Whether i ＆ lt storage battery activation charging capacity Sci is less than or equal to K × relative charging rated capacity
Sxcn；
Judge 2：Whether i ＆ lt activation discharging of storage battery capacity Sfi is less than or equal to K × relative discharge rated capacity
Sxfn；
Judge 3：Whether Max { Sci, Sfi } is less than or equal to 0.25 × Max { Sn, Sxcn }, and Sn is specified for accumulator battery
Capacity；
Wherein, K is more than or equal to 0 and is less than or equal to 1；
（2）When any one establishment of Rule of judgment 1,2 and 3, then this battery malfunction is judged.
This be for i ＆ lt discharge and recharge after, judge whether this accumulator fails according to this discharge and recharge data.This
It is bright at least to carry out three auto-activation processes in order that result is relatively reliable, as long as and the judged result of continuous three times meets step
Suddenly（2）, then judge that this accumulator battery fails.For this purpose, the present invention is in step（2）There are following steps afterwards：
（3）With the increase of i values, circulation step（1）With（2）If meeting step continuous three times（2）, then judge this electric power storage
Pond group failure.
A storage battery activation capacity of the invention is calculated using the charging and discharging currents integration of accumulator, and the sampling time is
△ t at equal intervals, △ t of the present invention adopt 1 ms interval, and i ＆ lt charging capacity Sci is with discharge capacity Sfi using following public
Formula is calculated：
I ＆ lt storage battery activation charging capacity is calculated：Sci=△ t × ∑ Icij, (j=0 ... .n)；
I ＆ lt activation discharging of storage battery calculation of capacity：Sfi=△ t × ∑ Ifij, (j=0 ... .m）；
Wherein, △ t are the time at equal intervals during correspondence charge or discharge, relative charging rated capacity Sxcn=
Max { Sci }, relative discharge rated capacity Sxfn=Sxcn.
K values are set to 0.8, to meet the present invention's on the basis of the discharge capacity test of verification property judges by the present invention
Concrete application.
Concrete numerical value of the present invention simply meets a kind of optimum selection of practical application of the present invention, and the present invention is not
It is limited to the change of size of data, it is all with similar technical scheme of the invention, belong to protection scope of the present invention.
Claims (3)
1. the online judgement system that a kind of analysing valve control type lead-acid accumulator battery fails, it is characterised in that including analysing valve control type lead-acid accumulator battery
Group, monitoring module and battery management module, the battery management modular electrical connect analysing valve control type lead-acid accumulator battery group, described
Monitoring module is electrically connected battery management module；
Analysing valve control type lead-acid accumulator battery group described in the monitoring module control battery management module auto-activation, the valve-regulated lead
One auto-activation of acid accumulator group includes a complete charge and discharge process, and the process is comprised the following steps：
Battery management module charge closing power supply the electric discharge of starting storage battery group；Collection discharge current Ifi and voltage U；Work as storage
When the voltage U of set of cells is less than the activation final voltage for setting, stops electric discharge, and calculate discharge capacity Sfi and discharge time t；
Open charge power supply and be converted into charged state, and the charge control strategy by setting is charged；Electricity in collection charging process
Stream Ici and voltage U；When floating charging flow valuve of charging current Ici less than setting, charging complete mark is set, and calculates charging
Capacity Sci and charging interval t；The alphabetical i represents the number of times of auto-activation；
Described in the battery management module auto-activation during analysing valve control type lead-acid accumulator battery group, automatic data collection charge and discharge process
In voltage, electric current and corresponding discharge and recharge time；
The monitoring module receives voltage during the charge and discharge gathered by battery management module, electric current and corresponding
Discharge and recharge time data, and assess automatically whether the analysing valve control type lead-acid accumulator battery group fails according to the data for receiving, the prison
Control module judges whether accumulator battery fails by the following method：
（1）Monitoring module was made the following judgment to the voltage, electric current and the corresponding discharge and recharge time that receive：
Rule of judgment 1：Whether i ＆ lt storage battery activation charging capacity Sci is less than or equal to K × relative charging rated capacity
Sxcn；
Rule of judgment 2：Whether i ＆ lt activation discharging of storage battery capacity Sfi is less than or equal to K × relative discharge rated capacity
Sxfn；
Rule of judgment 3：Whether Max { Sci, Sfi } is less than or equal to 0.25 × Max { Sn, Sxcn }, and Sn is specified for accumulator battery
Capacity；
Wherein, K is more than or equal to 0 and is less than or equal to 1；
（2）When any one establishment of Rule of judgment 1,2 and 3, then judge that this accumulator battery fails；
（3）With the increase of i values, circulation step（1）With（2）If meeting step continuous three times（2）, then judge this accumulator battery
Failure.
2. online judgement system according to claim 1, it is characterised in that i ＆ lt charging capacity Sci is held with electric discharge
Amount Sfi is calculated using equation below：
I ＆ lt storage battery activation charging capacity is calculated：Sci=△ t × ∑ Icij, (j=0 ... .n)；
I ＆ lt activation discharging of storage battery calculation of capacity：Sfi=△ t × ∑ Ifij, (j=0 ... .m）；
Wherein, △ t are the time at equal intervals during correspondence charge or discharge, relative charging rated capacity Sxcn=Max
{ Sci }, relative discharge rated capacity Sxfn=Sxcn.
3. online judgement system according to claim 1, it is characterised in that the K=0.8.
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| CN201410377997.2A CN104198942B (en) | 2014-08-01 | 2014-08-01 | A kind of online judgement system of analysing valve control type lead-acid accumulator battery failure |
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| CN104198942B true CN104198942B (en) | 2017-03-29 |
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| CN110501650A (en) * | 2019-07-10 | 2019-11-26 | 广州供电局有限公司 | Battery performance measurement method and device |
| CN110376528B (en) * | 2019-07-25 | 2021-12-07 | 珠海银河智能电网有限公司 | On-line evaluation method and system for lead-acid storage battery pack and storage medium |
| CN112505553A (en) * | 2020-12-31 | 2021-03-16 | 国网河南省电力公司南阳供电公司 | Online monitoring system for lead-acid storage battery |
| CN114361621B (en) * | 2022-03-18 | 2022-07-08 | 广东电网有限责任公司东莞供电局 | Battery management module of storage battery, method and device thereof, and storage medium |
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