CN105428732A - Apparatus and method for online maintenance of valve regulated sealed lead acid storage battery - Google Patents
Apparatus and method for online maintenance of valve regulated sealed lead acid storage battery Download PDFInfo
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- CN105428732A CN105428732A CN201410445162.6A CN201410445162A CN105428732A CN 105428732 A CN105428732 A CN 105428732A CN 201410445162 A CN201410445162 A CN 201410445162A CN 105428732 A CN105428732 A CN 105428732A
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The present invention discloses an apparatus and a method for online maintenance of a valve regulated sealed lead acid storage battery. According to the present invention, the backward battery in the storage battery pack is repaired by using a semi-offline technology, cyclic charging, pulse charging, low current trickle charging and other ways; and with the method of the present invention, the storage battery can not depart from the online backup status, the backward storage battery is subjected to maintenance by using the charging device of the user and the loading, and the occurrence of the phenomenon that the severe overcharge is generated during the storage battery pack so as to cause the storage battery dehydration can be avoided by using the semi-offline mode so as to prolong the service life of the storage battery.
Description
Technical field
The invention belongs to the automatic maintenance technology field of storage battery, be specifically related to a kind of device and method of on-line maintenance valve controlled sealed lead-acid accumulator.
Background technology
Valve controlled sealed lead-acid accumulator is widely used in every profession and trade, and uses mainly with the mode of whole group, so produce because of the performance difference of storage battery overcharge, the phenomenon of charge less, make part storage battery premature failure, affect the useful life of batteries.
Some reasons affecting service lifetime of accumulator have:
(1) overcharge and discharge:
Overcharge and storage battery can be allowed to produce phenomenon of losing water, accelerate the corrosion of accumulator plate and aging.
It is another key factor affecting service lifetime of accumulator that storage battery is excessively discharged.The life-span of storage battery depends on its depth of discharge, and depth of discharge is larger, and useful life is shorter.When to be excessively discharged output voltage be zero to storage battery, inside battery can be caused to have a large amount of lead sulfates by the cathode surface of suction to battery, be formed " sulfation " of cell cathode.Because lead sulfate itself is a kind of insulator, its formation will produce bad impact to the charging-discharging performances of battery.Therefore, the sulfate that minus plate is formed is more, and the internal resistance of battery is larger, and the charging-discharging performances of battery is poorer, and its useful life is shorter.Can not discharge completely, avoid over-discharge can, the amplitude of preferably discharging is between 30% ~ 50%.
(2) corrosion of grid and growth:
Grid corrosion is the major reason affecting service lifetime of accumulator.If battery improper use, is in overcharge condition for a long time, so the screen of battery will be thinning, and capacity reduces, can reduction of service life.
(3) floating charge state is on the impact of service lifetime of accumulator:
At present, under storage battery great majority are all in long-term floating charge state, only charging, do not discharge, this operating state is extremely unreasonable.A large amount of operating statistic data shows, the plate passivation of storage battery can be caused like this, accumulator internal resistance is sharply increased, make the actual capacity (A.h) of storage battery well below its normal capacity, thus the actual backup time causing storage battery to provide shortens greatly, reduce its useful life.
(4) dehydration
Storage battery dehydration is also one of factor affecting its useful life, and storage battery dehydration can cause electrolyte density to increase, the corrosion of battery grid plate, and the active material of storage battery is reduced, thus makes the capacity of storage battery reduce and cause reduce its useful life.
The common reason of the pattern of battery malfunction that causes has:
(1) battery dehydration
When charging voltage exceedes the gas evolution voltage of storage battery, in battery cell, positive very short time produces a large amount of gas, has little time to be absorbed by negative pole, when pressure exceedes certain value, just begins through one-way exhaust valve and be outwards vented.Although the gas of discharging have passed through acid filtering pad and filtered out acid mist, make batteries lose gas, also just lose water.
(2) negative plate sulphation
When battery charge is not enough, part negative plate just there is PbSO4 exist, after PbSO4 long-term existence, will lose activity, chemical reaction can not be participated in again.This phenomenon is called the sulphation of active material, and sulphation makes the active material of battery reduce, and reduces the available capacity of battery.
(3) positive plate corrosion
After battery dehydration, electrolyte density increases, and excessively strong electrolyte acidity can aggravate the corrosion of positive plate.
Current common battery service method:
Battery pack is departed from charger, tunable load is added at battery pack two ends, the discharging current of battery pack is made to be 0.1 times of rated capacity, per half an hour records primary cell voltage, until cell voltage drops to 1.8V/ (for 2V/ cell only) stop electric discharge afterwards, and writing time.Leave standstill after 2 hours; with onesize electric current, constant current charge is carried out to storage battery again; make cell voltage only rise to 2.35V/, only after protecting this voltage to carry out the equalizing charge of 8 hours to battery, constant voltage charge voltage is changed into 2.25V/, carry out the floating charge of 10 ~ 24 hours.Again to battery power discharge, if discharge capacity is greater than 80% of rated capacity, can continue to use, if can reform once by this method not after substituting the bad for the good each time.
As mentioned above, existing maintaining method is single, and specific aim is not strong, does not provide different maintenances to the particular problem of storage battery, and can not realize on-line maintenance.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, provide one and can effectively solve charge in batteries hidden danger, with strong points, improve the on-line maintenance device and method of the plumbic acid valve-control storage battery of equipment job security.
To achieve these goals, the invention provides a kind of on-line maintenance valve controlled sealed lead-acid accumulator device, comprise host computer and attending device, attending device comprises intelligent object, pwm circuit, D.C. contactor, afterflow protection module, circuit breaker and long-range control of discharge module; Described pulse-width modulation PWM circuit, D.C. contactor, afterflow protection module are connected with intelligent object with long-range control of discharge module; D.C. contactor and afterflow protection module form half off-line module; circuit breaker and described half off-line module also connect; the state information of batteries is detected by intelligent object; export the mode of operation that control signal regulates pwm circuit; change the charging current of batteries, reach best maintenance effects.
In the present invention, intelligent object is also provided with communication interface, can communicate with host computer, the control command that the data of transmission battery pack or reception host computer issue.When pulse-width modulation PWM circuit can realize high frequency switch power to charge in batteries, charging current and the charging interval controlled.Circuit breaker is manual control switch, and human intervention system enters or departs from half off-line state.Afterflow protection module mainly limits high frequency switch power and directly can charge to battery pack, just can charge a battery after needing via pulse width modulation; Ensure that storage battery still can powering load under not having again the extreme situation of disengaging half off-line without civil power and system.The controlled completion system of D.C. contactor enters or departs from half off-line state; Long-range control of discharge module realizes intelligent object and controls the remote on/off of intelligent power.
Further illustrate as of the present invention, above-described intelligent object gathers the data of battery pack, and after analyzing and processing, output signal instruction controls the break-make of pulse-width modulation charging module, D.C. contactor.
Further illustrate as of the present invention, above-described intelligent object adopts high-performance ARM core processor STM32F103ZET, and installs highly reliable real time operating system UCOS.
Intelligent object is micro-control unit, also known as one chip microcomputer, refer to the appearance along with large scale integrated circuit and development thereof, by the CPU of computer, RAM, ROM, timing number device and multiple I/O Interface integration on one chip, form the computer of chip-scale, do various combination for different application scenarios and control.The high-performance ARM core processor STM32F103ZET adopted in the present invention.Intelligent power described in the present invention is can carry out by intelligent object the intelligent power that controls according to the program of in advance setting, comprises transformation and the charge function of 48 ~ 220V.
Further illustrate as of the present invention, above-described afterflow protection module is powerful diode, and the input of diode is connected with user's high frequency switch power, and output is connected with battery pack.
Further illustrate as of the present invention, above-described D.C. contactor and afterflow protection module compose in parallel half off-line module, control attending device and enter or depart from half off-line state.
Half off-line refers to the unidirectional general character utilizing diode, and charging current is isolated out, and allows batteries not be in floating charge state.Meanwhile, when civil power stops, when power supply lost efficacy, battery pack but can continue to provide stand-by electric energy in loop through this diode.Adopt the contactor of big current, short circuit diode is to reach the object of whether enabling half offline functionality and the pressure drop eliminating diode generation in discharge process.
Further illustrate as of the present invention, the above pulse-width modulation PWM channel frequency is 40-100KHz, and duty ratio is any, and charging current is controlled, is selected by intelligent object, also can send instruction adjustment by host computer is long-range.Charging in intervals, cycle-index are controlled by intelligent object, until battery is full of completely, or receive till user stops charging instruction.Pwm circuit adopts 3844PWM that chip occurs, the discharge and recharge time coefficient produced by RC controls the working frequency points employing current mode feedback of 3844, the voltage U 2 that main output loop electric current produces on R is received amplifier, by amplifier U2 this voltage to be amplified and U3 reference voltage compares, obtain a pulse train, this sequence is controlled 3844 by optocoupler, thus cause constant Current Control and overcurrent protection, the DA(digital-to-analogue that reference voltage is exported by TL431 a reference source and intelligent object exports) voltage addition generation, the magnitude of voltage of control DA can change the charging current of pwm circuit, intelligent object is utilized to control the work of 3844, stopping can changing the duty ratio of pulse charging manner and the operating frequency of charge circuit, finally reach the object controlling charging current.
Half off-line state and pulse current charge state are mutual exclusion state, and during battery service, pulse current charge state prior line is high, when electric discharge produces, must depart from half off-line state, to ensure that electric power system is reliable, safety.
D.C. contactor adopts modularized design, can go out the contact way required for client and the contact form required for client (often opening, normally closed and conversion) with minimum assembling parts; This series of products contact drop-out voltage is high, and adopts and horizontally blow magnetic field arc extinguishing, and the highest drop-out voltage can reach 220VDC, and product is applicable to programmable power supply or uninterruptible power system.
Operation principle of the present invention: intelligent object detects voltage and the electric current of batteries and storage battery; export control signal after analyzing and processing, control the work of pulse-width modulation PWM circuit, D.C. contactor, afterflow protection module, circuit breaker and long-range control of discharge module.Pwm circuit underground palace pulse charging manner and restriction charging current; The entering and depart from of D.C. contactor, afterflow protection module and breaker control batteries half offline mode; The break-make of long-range control of discharge module controls intelligent power.
The present invention also provides a kind of method of on-line maintenance valve controlled sealed lead-acid accumulator, comprises the following steps:
1) attending device is started;
2) the on-line automatic reparation of storage battery, comprises the reparation of negative plate sulfation, dehydration reparation, balanced one or more combinations of mending in electricity;
3) storage battery is full of after discharging completely;
4) the anti-overcharge detection of storage battery;
5) property checked discharge test and activation;
6) result is safeguarded in display.
Negative plate sulfation of the present invention is repaired further comprising the steps:
The charging current of A1 intelligent power is restricted to 0.2 ~ 0.3 storage battery certain multiplying power discharging electric current CI, and even charging voltage is adjusted to 105 ~ 110% cell batteries and all fills the monomer number that limit is multiplied by batteries with;
A2 charges 8 ~ 12h;
A3 adjusts output voltage or the analog AC power failure of intelligent power, makes batteries electric discharge more than 50% capacity;
A4 all fills with cell batteries the voltage constant voltage charge that limit is multiplied by batteries monomer number with; Reach when there being cell batteries voltage and all fill with in limited time, utilize half offline mode to make batteries depart from charged state, leave standstill 10 ~ 30min; Utilize pwm circuit, pulse charging manner is adopted to charge to batteries and activate, reach when again there being cell batteries and all fill with in limited time, leave standstill 10 ~ 30min, the output current of adjustment pwm circuit, with the electric current of 0.005 ~ 0.03CI, batteries tiny stream is filled until again have single battery voltage to reach all fill limit with, make batteries electric discharge 30 ~ 60min with load, electric discharge 20 ~ 50%;
A5 repeats 1 ~ 5 step A4.
Dehydration of the present invention is repaired further comprising the steps:
B1 is charging 8 ~ 12h all;
B2 unloads the control valve of dehydration storage battery, adds pure water 1 ~ 3ml/Ah;
B3 load makes batteries electric discharge more than 50% capacity;
B4 all fills with 105 ~ 110% cell batteries the voltage constant voltage charge that limit is multiplied by batteries monomer number with; Reach when there being cell batteries voltage and all fill with in limited time, utilize half offline mode to make batteries depart from charged state, leave standstill 10 ~ 30min; Utilize pwm circuit, adopt pulse charging manner charge to batteries and activate, reach when again there being cell batteries and all fill with in limited time, leave standstill 10 ~ 30min; The output current of adjustment pwm circuit, fills batteries tiny stream with the electric current of 0.005 ~ 0.03CI until again have single battery voltage to reach all fill limit with, makes batteries electric discharge 30 ~ 60min, electric discharge 20 ~ 50% with load;
B5 repeats 1 ~ 5 step B4.
It is further comprising the steps that electricity is mended in equilibrium of the present invention:
C1 batteries turns floating charging operation;
C2 detects cell batteries voltage dynamic differential pressure in batteries, when detecting that cell batteries voltage dynamic differential pressure is greater than 80mV, utilizes half offline mode to make batteries depart from charged state, leaves standstill 30 ~ 60min; All filling with 105 ~ 110% cell batteries limits the voltage being multiplied by batteries monomer number all to fill, and utilizes pwm circuit (6), adopts pulse charging manner charge to batteries and activate; Reach when again there being cell batteries and all fill with in limited time, leave standstill 10 ~ 30min; The output current of adjustment pwm circuit, carries out tiny stream with the electric current of 0.005 ~ 0.02CI to batteries and fills until again have single battery voltage to reach all fill limit with, turn floating charging operation.
Detect cell batteries voltage dynamic differential pressure in batteries in the floating charging operation time of C372 hour, again detect that cell batteries voltage dynamic differential pressure repeats 1 ~ 5 step C2 when being greater than 80mV;
When C45 maintenance still can detect that cell batteries voltage dynamic differential pressure is greater than 80mV rear time, failure result safeguarded in record.
The anti-overcharge detection of storage battery of the present invention is further comprising the steps:
D1 detects cell batteries voltage in batteries, detects that cell batteries voltage reaches and all fills with in limited time, utilizes half offline mode to make batteries depart from charged state, leaves standstill 30 ~ 60min; Adjustment charging voltage all fills to 105 ~ 110% cell batteries the voltage that limit is multiplied by batteries monomer number with, utilizes pwm circuit, adopts pulse charging manner charge to batteries and activate; Reach when again there being cell batteries and all fill with in limited time, leave standstill 10 ~ 30min; The output current of adjustment pwm circuit, fills batteries tiny stream until have cell batteries voltage to reach all fill limit with the electric current of 0.005 ~ 0.03CI, turns floating charging operation;
Detect cell batteries voltage in batteries in the floating charging operation time of D272 hour, again detected that cell batteries voltage reaches and all filled repetition 1 ~ 3 step D1 in limited time with;
Safeguard for D33 time and still have for rear time super all the filling with of cell batteries voltage to prescribe a time limit, after batteries half off-line state is run 24 ~ 72 hours, turn floating charging operation.
The property checked discharge test of the present invention and activate further comprising the steps:
What the charging current of E1 intelligent power was restricted to that 0.2 ~ 0.3CI and even charging voltage be adjusted to 105 ~ 110% cell batteries all fills the monomer number that limit is multiplied by batteries with;
E2 charges 8 ~ 12h;
E3 analog AC has a power failure, and utilizes load to make batteries be discharged to cell and discharges into cut-ff voltage, the capacity of calculating accumulator group, logging test results;
E4 limits the voltage being multiplied by batteries monomer number to carry out constant voltage charge to batteries with all filling with of 105 ~ 110% cell batteries; When there being cell batteries to reach all filling with in limited time of storage battery, utilizing half offline mode to make storage battery depart from charged state, leaving standstill 10 ~ 30min; Utilize pwm circuit, adopt pulse charging manner charge to batteries and activate; Reaching all filling with of storage battery when again there being cell batteries to prescribe a time limit, leaving standstill 10 ~ 30min; The output current of adjustment pwm circuit, fill batteries tiny stream until again have cell batteries voltage to reach all fill limit with the electric current of 0.005 ~ 0.03CI, batteries turns floating charging operation.
The above storage battery certain multiplying power discharging electric current CI comprises the one in storage battery 10 hour rate, 5 hour rate discharging currents, also can be the actual current needed for load.
The result safeguarded in above step is finally also turned back to host computer, by host computer display etc. by the present invention.
Compared with prior art, the beneficial effect that possesses of the present invention:
The present invention adopts half off-line technology, cycle charging, pulse current charge, small area analysis tiny stream to fill means etc. and repairs lagging batteries in batteries, this method can make batteries not depart from state for subsequent use online, the charging device of user and load is utilized to safeguard lagging batteries, the mode of half off-line can be adopted to avoid serious generation in batteries seriously overcharge and cause the phenomenon of storage battery dehydration to occur simultaneously, reach the object extending batteries useful life.
Accompanying drawing explanation
Fig. 1 is on-line maintenance valve controlled sealed lead-acid accumulator device wiring schematic diagram of the present invention.
Fig. 2 is the general flow chart of restorative procedure of the present invention.
Fig. 3 is that negative plate sulfation of the present invention repairs flow chart.
Fig. 4 is that flow chart is repaired in dehydration of the present invention.
Fig. 5 is that the present invention overcharges overhaul flow chart.
Reference numeral:
Intelligent power 1, batteries 2, intelligent object 3, attending device 4, load 5, pwm circuit 6, D.C. contactor 7, afterflow protection module 8, circuit breaker 9, long-range control of discharge module 10.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Embodiment 1:
Plumbic acid valve-control storage battery group 2(24 cell batteries, rated voltage 2V, floating charge upper limit 2.25V, all fill with limit 2.35V, cut-ff voltage 1.8V, rated capacity 500Ah, CI are ten hour rate discharging current 50A) on-line maintenance:
1) start attending device 4, wiring as shown in Figure 1: pwm circuit 6, D.C. contactor 7, afterflow protection module 8 and circuit breaker 9 to connect storage battery negative after connecing extreme; Long-range control of discharge module 10 connects intelligent power 1.
2) accumulator negative plate sulfation is repaired:
Charging current is restricted to 10A by pwm circuit 6 by A1 intelligent object 3, and even charging voltage is adjusted to 59.22V;
A2 to charge 10h to batteries 2;
A3 intelligent object 3 disconnects intelligent power 1 by long-range control of discharge module 10, and analog AC has a power failure, and batteries 2 is discharged 60% capacity;
A4 with 56.4V, voltage constant voltage charge; Intelligent object 3 has detected that cell batteries voltage reaches 2.35V, and disconnect D.C. contactor 7, batteries 2 departs from charged state, leaves standstill 20min; Intelligent object 3 utilizes pwm circuit 6, adopts pulse charging manner charge to batteries 2 and activate, has again detected that cell batteries reaches 2.35V, leave standstill 10min; Intelligent object 3 adjusts the output current of pwm circuit 6, fill until again there is single battery voltage to reach 2.35V with the electric current of 0.25A to batteries 2 tiny stream, intelligent object 3 disconnects intelligent power 1 by long-range control of discharge module 10, with load 5, batteries 2 is discharged 30min, electric discharge 40%;
A5 repeats 1 step A4.
Storage battery dehydration is repaired:
B1 all to charge 10h with 59.22V;
B2 unloads the control valve of dehydration storage battery, adds pure water 500ml;
B3 intelligent object 3 disconnects intelligent power 1 by long-range control of discharge module 10, utilizes load, and 5 make batteries 2 discharge 60% capacity;
B4 is with the voltage constant voltage charge of 59.22V; Intelligent object 3 has detected that cell batteries voltage reaches 2.35V, and disconnect D.C. contactor 7, batteries 2 departs from charged state, leaves standstill 10min; Intelligent object 3 utilizes pwm circuit 6, adopts pulse charging manner charge to batteries 2 and activate, and when again there being cell batteries to reach 2.35V, leaves standstill 20min; The output current of adjustment pwm circuit 6, fill until there is single battery voltage to reach 2.35V with the electric current of 0.25A to batteries 2 tiny stream, intelligent object 3 disconnects intelligent power 1 by long-range control of discharge module 10, with load 2 electric current, batteries 2 is discharged 30min, electric discharge 50%;
B5 repeats 2 step B4.
Battery equalisation mends electricity:
C1 batteries 2 turns of floating charging operations;
Under C2 floating charge state, intelligent object 3 detects in batteries 2 has cell batteries voltage dynamic differential pressure to be greater than 80mV, and disconnect D.C. contactor 7, batteries 2 departs from charged state, leaves standstill 40min; Adjustment charging voltage, to 59.22V, utilizes pwm circuit 6, adopts pulse charging manner charge to batteries 2 and activate; Intelligent object 3 has detected that cell batteries reaches 2.35V, leaves standstill 30min; The output current of adjustment pwm circuit 6, carries out tiny stream with the electric current of 0.25A to batteries 2 and fills until there is single battery voltage to reach 2.35V, turn floating charging operation.
In the floating charging operation time of C324 hour, intelligent object 3 does not detect that cell batteries voltage dynamic differential pressure is greater than 80mV.
3) intelligent object 3 disconnects intelligent power 1 by long-range control of discharge module 10, utilizes load 5 that batteries 2 is discharged completely, is then full of.
4) the anti-overcharge detection of storage battery:
D1 intelligent object 3 detects cell batteries voltage in batteries 2, has detected that cell batteries voltage reaches 2.35V, and disconnect D.C. contactor 7, batteries 2 departs from charged state, leaves standstill 30min; Adjustment charging voltage, to 59.22V, utilizes pwm circuit 6, adopts pulse charging manner charge to batteries 2 and activate; Detect that cell batteries reaches 2.35V, left standstill 20min; The output current of adjustment pwm circuit 6, fills until there is cell batteries voltage to reach 2.35V batteries 2 tiny stream with the electric current of 0.25A, turns floating charging operation;
In the floating charging operation time of D272 hour, intelligent object 3 does not detect in batteries 2 has cell batteries voltage to reach 2.35V.
5) property checked discharge test and activation:
Charging current is restricted to 10A by pwm circuit 6 by E1 intelligent object 3, and even charging voltage is adjusted to 59.22V;
E2 charges 8h;
E3 intelligent object 3 disconnects intelligent power 1 by long-range control of discharge module 10, analog AC has a power failure, and utilize load 5 to make batteries 2 be discharged to cell and discharge into cut-ff voltage 1.8V, the capacity recording batteries 2 is 11500Ah, the capacity of battery pack is qualified, logging test results.
E4 carries out constant voltage charge with the voltage of 59.22V to batteries 2; When there being cell batteries to reach 2.35V, utilizing half off-line module to make storage battery depart from charged state, leaving standstill 20min; Utilize pwm circuit 6, adopt pulse charging manner charge to batteries and activate; When there being cell batteries to reach 2.35V, leave standstill 10min; The output current of adjustment pwm circuit 6, fills until there is cell batteries voltage to reach 2.35V with the electric current of 0.25A to batteries 2 tiny stream, batteries 2 turns of floating charging operations.
6) result is safeguarded in display: the result safeguarded in above step is sent to host computer, is shown by host computer, display " maintenance be successfully, batteries 2 capacity is qualified " etc.
Embodiment 2:
CI is actual current 60A as different from Example 1, and other principles are identical with embodiment 1.
Embodiment 3:
CI is five hour rate discharging current 100A as different from Example 1, and other principles are identical with embodiment 1.
Claims (9)
1. an on-line maintenance valve controlled sealed lead-acid accumulator device, comprise host computer and attending device (4), it is characterized in that: attending device (4) comprises intelligent object (3), pwm circuit (6), D.C. contactor (7), afterflow protection module (8), circuit breaker (9) and long-range control of discharge module (10); Described pulse-width modulation PWM circuit (6), D.C. contactor (7), afterflow protection module (8) are connected with intelligent object (3) with long-range control of discharge module (10); D.C. contactor (7) and afterflow protection module (8) form half off-line module, and circuit breaker (9) and described half off-line module also connect; Intelligent object (3) detects the state information of batteries (2), exports the mode of operation that control signal regulates pwm circuit (6), changes the charging current of batteries (2).
2. a method for on-line maintenance valve controlled sealed lead-acid accumulator, use on-line maintenance valve controlled sealed lead-acid accumulator device according to claim 1, it is characterized in that: comprise the following steps:
1) attending device (4) is started;
2) the on-line automatic reparation of storage battery, comprises the reparation of negative plate sulfation, dehydration reparation, balanced one or more combinations of mending in electricity;
3) batteries (2) is full of after discharging completely;
4) the anti-overcharge detection of storage battery, its step comprises:
D1 detects cell batteries voltage in batteries (2), detects that cell batteries voltage reaches and all fills with in limited time, utilizes half offline mode to make batteries (2) depart from charged state, leaves standstill 30 ~ 60min; Adjustment charging voltage all fills to 105 ~ 110% cell batteries the voltage that limit is multiplied by batteries (2) monomer number with, utilizes pwm circuit (6), adopts pulse charging manner charge to batteries (2) and activate; Reach when again there being cell batteries and all fill with in limited time, leave standstill 10 ~ 30min; The output current of adjustment pwm circuit (6), fills until have cell batteries voltage to reach all fill limit with batteries (2) tiny stream with the electric current of 0.005 ~ 0.03CI, turns floating charging operation;
Detect cell batteries voltage in batteries (2) in the floating charging operation time of D272 hour, again detected that cell batteries voltage reaches and all filled repetition 1 ~ 3 step D1 in limited time with;
Safeguard for D33 time and still have for rear time super all the filling with of cell batteries voltage to prescribe a time limit, after batteries (2) half off-line state is run 24 ~ 72 hours, turn floating charging operation;
5) property checked discharge test and activation;
6) safeguard that result returns host computer and shows.
3. the method for on-line maintenance valve controlled sealed lead-acid accumulator according to claim 2, is characterized in that: described negative plate sulfation is repaired further comprising the steps:
The charging current of A1 intelligent power (1) is restricted to 0.2 ~ 0.3 storage battery certain multiplying power discharging electric current CI, and even charging voltage is adjusted to 105 ~ 110% cell batteries and all fills the monomer number that limit is multiplied by batteries (2) with;
A2 charges 8 ~ 12h;
A3 adjusts output voltage or the analog AC power failure of intelligent power (1), makes batteries (2) electric discharge more than 50% capacity;
A4 batteries (2) constant voltage, pulse and tiny stream charging;
A5 repeats 1 ~ 5 step A4.
4. the method for on-line maintenance valve controlled sealed lead-acid accumulator according to claim 3, is characterized in that: the concrete operations of steps A 4 are: all fill with cell batteries the voltage constant voltage charge that limit is multiplied by batteries (2) monomer number with; Reach when there being cell batteries voltage and all fill with in limited time, utilize half offline mode to make batteries (2) depart from charged state, leave standstill 10 ~ 30min; Utilize pwm circuit (6), pulse charging manner is adopted to charge to batteries (2) and activate, reach when again there being cell batteries and all fill with in limited time, leave standstill 10 ~ 30min, the output current of adjustment pwm circuit (6), with the electric current of 0.005 ~ 0.03CI, batteries (2) tiny stream is filled until again have single battery voltage to reach all fill limit with, make batteries (2) electric discharge 30 ~ 60min, electric discharge 20 ~ 50%.
5. the method for on-line maintenance valve controlled sealed lead-acid accumulator according to claim 2, is characterized in that: described dehydration is repaired further comprising the steps:
B1 is charging 8 ~ 12h all;
B2 unloads the control valve of dehydration storage battery, adds pure water 1 ~ 3ml/Ah;
B3 load (5) makes batteries (2) electric discharge more than 50% capacity;
The micro-high formula constant voltage of B4 batteries (2), pulse and tiny stream charging;
B5 repeats 1 ~ 5 step B4.
6. the method for on-line maintenance valve controlled sealed lead-acid accumulator according to claim 5, is characterized in that: the concrete operations of step B4 are: all fill with 105 ~ 110% cell batteries the voltage constant voltage charge that limit is multiplied by batteries (2) monomer number with; Reach when there being cell batteries voltage and all fill with in limited time, utilize half offline mode to make batteries (2) depart from charged state, leave standstill 10 ~ 30min; Utilize pwm circuit (6), adopt pulse charging manner charge to batteries (2) and activate, reach when again there being cell batteries and all fill with in limited time, leave standstill 10 ~ 30min; The output current of adjustment pwm circuit (6), fills until again have single battery voltage to reach all fill limit with batteries (2) tiny stream with the electric current of 0.005 ~ 0.03CI, makes batteries (2) electric discharge 30 ~ 60min, electric discharge 20 ~ 50%.
7. the method for on-line maintenance valve controlled sealed lead-acid accumulator according to claim 2, is characterized in that: it is further comprising the steps that electricity is mended in described equilibrium:
C1 batteries (2) turns floating charging operation 24 hours;
C2 detects cell batteries voltage dynamic differential pressure in batteries (2), when detecting that cell batteries voltage dynamic differential pressure is greater than 80mV, utilizes half offline mode to make batteries (2) depart from charged state, leaves standstill 30 ~ 60min; All fill with 105 ~ 110% cell batteries the voltage that limit is multiplied by batteries (2) monomer number with all to fill, utilize pwm circuit (6), adopt pulse charging manner charge to batteries (2) and activate; Reach when again there being cell batteries and all fill with in limited time, leave standstill 10 ~ 30min; The output current of adjustment pwm circuit (6), carries out tiny stream with the electric current of 0.005 ~ 0.02CI to batteries (2) and fills until again have single battery voltage to reach all fill limit with, turn floating charging operation;
Detect cell batteries voltage dynamic differential pressure in batteries (2) in the floating charging operation time of C324 hour, again detect that cell batteries voltage dynamic differential pressure repeats 1 ~ 5 step C2 when being greater than 80mV;
When C45 maintenance still can detect that cell batteries voltage dynamic differential pressure is greater than 80mV rear time, failure result safeguarded in record.
8. the method for on-line maintenance valve controlled sealed lead-acid accumulator according to claim 2, is characterized in that: the described property checked discharge test and activate further comprising the steps:
What the charging current of E1 intelligent power (1) was restricted to that 0.2 ~ 0.3CI and even charging voltage be adjusted to 105 ~ 110% cell batteries all fills the monomer number that limit is multiplied by batteries (2) with;
E2 charges 8 ~ 12h;
E3 analog AC has a power failure, and utilizes load (5) to make batteries (2) be discharged to cell and discharges into cut-ff voltage, the capacity of calculating accumulator group (2), logging test results;
E4 carries out constant voltage charge with the voltage that limit is multiplied by batteries (2) monomer number of all filling with of 105 ~ 110% cell batteries to batteries (2); When there being cell batteries to reach all filling with in limited time of storage battery, utilizing half offline mode to make storage battery de-(2) from charged state, leaving standstill 10 ~ 30min; Utilize pwm circuit (6), adopt pulse charging manner charge to batteries (2) and activate; Reaching all filling with of storage battery when again there being cell batteries to prescribe a time limit, leaving standstill 10 ~ 30min; The output current of adjustment pwm circuit (6), fill until again have cell batteries voltage to reach all fill limit with batteries (2) tiny stream with the electric current of 0.005 ~ 0.03CI, batteries (2) turns floating charging operation.
9. according to the method for the arbitrary described on-line maintenance valve controlled sealed lead-acid accumulator of claim 3 ~ 8, it is characterized in that: the electric current of described storage battery certain multiplying power discharging electric current CI needed for actual loading or the one after using dummy load adjustment in storage battery 10 hour rate and 5 hour rate discharging currents.
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