CN104362402B - A kind of staged constant current charge-discharge method - Google Patents
A kind of staged constant current charge-discharge method Download PDFInfo
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- CN104362402B CN104362402B CN201410483438.XA CN201410483438A CN104362402B CN 104362402 B CN104362402 B CN 104362402B CN 201410483438 A CN201410483438 A CN 201410483438A CN 104362402 B CN104362402 B CN 104362402B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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Abstract
The present invention relates to a kind of staged constant current charge-discharge method, step is as follows: 1, modified constant-voltage charge: 1., when battery voltage reaches after even charging voltage, charger transfers constant-voltage charge to; 2. turn after floating current when charging current is less than, still maintain aforementioned constant-voltage charge, until countdown finishes; 1.3, floating charging: after turning the timing of floating charge time and finishing, charger proceeds to the floating charge stage; 2, constant-current discharge process: PWM modulation circuit is opened 1# passage, dutycycle is increased to 100% state progressively, fast from 0% full closing state; The same manner is opened 2#, 3#, 4# passage; Open 5# passage, dutycycle is progressively increased to setting value from 0%. Beneficial effect of the present invention is: principle is simple, effective, extensibility is good, fast response time, and precision of steady current is high; Stable performance, reliable, environment-protective no-smell; Can meet different voltage ranges, current range; Electric current can be realized stepless adjustable; Constant current accuracy is not subject to external environmental interference.
Description
Technical field
The present invention relates to battery field, is mainly a kind of staged constant current charge-discharge method.
Background technology
The current constant mode that current main-stream " battery discharging instrument " producer adopts, 1, PTC current constant mode: " the resistance that utilizes PTC-temperature " characteristic, regulate PTC temperature by controlling rotation speed of fan, and then regulate PTC resistance value, thus controlled discharge electricityStream, realizes constant current. Advantage: simple in structure, easily realization, self-shield characteristic is good, lightweight; Shortcoming: precision of steady current is poor,Easily (as: air-flow, environment temperature etc.) affected by environment; Cannot be from little electric current tune etc. 2, " 8421 " code combination mode: manyThe parallel connection of bar passage, each passage discharge power according to form combination of " 8421 " code (as: each channel power be 100W, 200W,400W, 800W ...), according to different discharge currents, realize constant current by Multichannel combination break-make mode. Advantage: principle letterSingle, easily realization, reliability is high; Shortcoming: be subject to the restriction of minimum power passage, cannot realize the stepless adjustable of electric current, current stabilization essenceSpend poor. 3, power tube mode of loading: using power tube as simulation adjustable resistance is as discharge load, realize constant current. Advantage: steadyStream precision is good, current stabilization speed is fast, affected by environment little; Shortcoming: affected by volume, weight larger, be difficult for realizing large electric current.
Traditional active mode is generally to loop by the degree of depth " be full of → discharge (generally emitting half capacity) → be full of "Activation, this mode is consistent with " property the checked electric discharge → charging " process in regular maintenance in essence, and effect is very not obvious, andBe deep discharge mode due to what adopt, frequent activation will have a strong impact on battery " circulation " service life. Lead-acid accumulator makesComprise " cycle life " and " float life " with the life-span. According to the difference of application scenario, emphasis is also different, the production of employingTechnique also differs widely. As: electrokinetic cell stresses " cycle life ", and pole plate is thick; And the battery side that power supply uses in supportHeavy " float life ", pole plate is thinner, therefore, discharges and recharges greatly stressing the frequent degree of depth of backup battery of " float life "Shorten its service life greatly.
Summary of the invention
Object of the present invention is exactly in order to overcome above-mentioned problems of the prior art, and a kind of staged constant current charge-discharge is providedMethod.
The object of the invention is to complete by following technical solution. This staged constant current charge-discharge method, the method comprisesCharging, electric discharge and activation, concrete steps are as follows:
(1), charging comprises constant current voltage limiting charging, modified constant-voltage charge and floating charge;
(1.1), constant current voltage limiting charging: lower voltage after battery power discharge, after starting to charge, charger is equal with what setCharging stream carries out constant-current charge, and battery voltage increases, until reach " even charging voltage ";
(1.2), modified constant-voltage charge: be divided into two processes, be followed successively by: 1. when battery voltage reaches after even charging voltage,Charger transfers constant-voltage charge to, and charging current reduces thereupon, turns floating current until charging current is less than; 2. when charging current is littleAfter turning floating current, enter and all fill countdown---" turning the floating charge time " stage, and still maintain aforementioned constant-voltage charge, untilCountdown finishes;
(1.3), floating charging: after turning the timing of floating charge time and finishing, charger proceeds to the floating charge stage, with the floating charging of settingPress battery pack trickle charge, the duration equals the floating charge time of setting;
(2), constant-current discharge process:
(2.1), first, PWM modulation circuit is opened 1# passage, dutycycle from 0% full closing state progressively, fast strengthenTo 100% full opening state;
(2.2), then, the same manner is opened 2#, 3#, 4# passage;
(2.3), open 5# passage, dutycycle progressively strengthens from 0%, until total current is discharge current setting value;
(2.4), along with the carrying out of discharge process, total voltage progressively reduces, and now synchronously increases the dutycycle of 5# passage,Make electric current sustain discharge current setting value, until this passage dutycycle reaches 100%, and then open 6# passage;
(2.5) the constant current process of other current settings is identical with above-mentioned steps.
Described activation: adopt the charge and discharge cycles of certain frequency, by PbSO4Particle breakdown, reduction; In each large " fillingExpire → discharge → be full of " in the cycle, comprise many little pulse period T of N, and each pulse period comprises charging t1With putElectricity t2; In charging process, adopt " pulse " mode of " fill → put "; In discharge process, like this too.
Beneficial effect of the present invention is:
(1) constant current principle is simple, effective, extensibility is good, fast response time, and precision of steady current is high;
(2) current loop adopts pure resistance, stable performance, reliable, and environment-protective no-smell;
(3) different resistance/performance number, can meet the demand of different voltage ranges, current range;
(4), according to actual requirement, electric current can be realized stepless adjustable;
(5) constant current accuracy is not subject to external environmental interference, as: temperature, humidity, air-flow etc.
Brief description of the drawings
Fig. 1 is discharge principle schematic diagram of the present invention.
Fig. 2 is activation principle schematic of the present invention.
Fig. 3 is charging principle schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be further described:
This staged constant current charge-discharge method, the method comprises charging, electric discharge and activation, concrete steps are as follows:
(1), charging comprises constant current voltage limiting charging, modified constant-voltage charge and floating charge;
(1.1), constant current voltage limiting charging: after battery power discharge, voltage is lower, starts after charging, and charger is " equal with what setCharging stream " carry out constant-current charge, battery voltage increases, until reach " even charging voltage ". This duration in stage:Depend on battery performance and charging current.
(1.2), modified constant-voltage charge: be divided into two processes, be followed successively by: 1. when battery voltage reaches " even charging voltage "After, charger transfers constant-voltage charge automatically to, and charging current reduces thereupon, until charging current is less than " turning floating current "; 2. work asCharging current is less than after " turning floating current ", enters " all filling countdown "---" turning the floating charge time " stage, and still maintainAforementioned constant-voltage charge, until countdown finishes. This duration in stage: depend on battery performance and charging current+" turn floatingFill the time ".
(1.3), floating charging: after " turning the floating charge time " timing finishes, charger proceeds to the floating charge stage automatically, with what set" float charge voltage " is to battery pack trickle charge. This duration in stage: " the floating charge time " that equals setting.
The universal standard: even charging voltage 2.35V, float charge voltage 2.25V, bulk charge stream 0.1C10A, all fill and turn floating current 0.01C10
(2), constant-current discharge process: (for example: starting voltage 227.7V; Discharge current setting value 30A)
(1) first, " PWM modulation circuit " opens 1# passage, and dutycycle is increased to 100% progressively, fast from 0% (contract fully)(standard-sized sheet is logical); Now gathering total current is: 6.9A;
(2) then, the same manner is opened 2#, 3#, 4# passage, and now total current is: 27.6A;
(3) open 5# passage, dutycycle progressively strengthens from 0%, until total current is 30A;
(4) along with the carrying out of discharge process, total voltage progressively reduces, and now synchronously increases the dutycycle of 5# passage, and electric current is maintained30A, until this passage dutycycle reaches 100%, and then opens 6# passage;
(5) the constant current process of other current settings similarly.
As shown in Figure 1:
1,220V battery pack is 103-108 joint containing cell quantity:
Under assembled battery total voltage, be limited to: 1.80 × 103=185.4V;
On assembled battery total voltage, be limited to: 2.25 × 108=243.0V;
2, in figure, the resistance of each passage is fixed resistance 33 Ω (230V/1600W), adopts switch controlled break-make;
3, in figure, the current value of each passage is all adjustable: switching tube adopts 50KHz pulse width modulation frequency, and dutycycle is 0%～100%;
4, each channel current maximum: when total voltage is lower limit 185.4V, I=5.62A; In the time that total voltage is higher limit 243V,I＝7.36A；
5, the Tu Zhong 11 total parallel resistance minimum of a values in tunnel are 3 Ω, known according to (I=U ÷ R), are not less than the feelings of 180V in total voltageUnder condition, all can reach 60A discharge current;
6, be subject to Power Limitation, total voltage can not be higher than 260V;
7, in order to eliminate electric current " pulsation ", added electric current smoothing circuit (omitting in figure).
Adopt " pulsed " active mode, can well solve above-mentioned shortcomings, the battery causing for sulfationCan decline and there is good repairing effect, both recover to greatest extent battery capacity, reduce again the shadow to service lifetime of accumulatorRinging, is current optimal battery activation mode.
Internal storage battery electrochemical reaction is:
Electric discharge: positive/negative plate active material (Pb, PbO2) generate PbSO with sulfuric acid reaction4；
Charging: under the effect of charging current, by PbSO4Be reduced to Pb, PbO2And H2SO4。
So-called battery " sulfation ", mainly refers to the PbSO that internal storage battery generates4Particle cannot be reduced to active material completely(Pb、PbO2、H2SO4), cause accumulator capacity to decline, internal resistance increases, as activated not in time, PbSO4Particle can comeLarger, make battery accelerated deterioration.
" pulsed " active mode is as shown in Figure 2: described activation: adopt the charge and discharge cycles of certain frequency, by PbSO4Particle breakdown, reduction. In cycle, comprise many little pulse period T of N each large " be full of → discharge → be full of ",And each pulse period comprises charging t1With electric discharge t2. In charging process, not trickle charge always, but adopt " fill →Put " " pulse " mode; In discharge process, like this too. Through my company's long term test gained, this method is to " sulfateChange " accumulator capacity that causes declines and has very significantly effect. This method shortcoming: have higher reality on hardware and softwareExisting difficulty, and the pulse frequency adopting need could obtain through lot of experiments.
In addition to the implementation, the present invention can also have other embodiments, and all employings are equal to the skill of replacement or equivalent transformation formationArt scheme, all drops on the protection domain of requirement of the present invention.
Claims (1)
1. a charging/discharging thereof, is characterized in that: the method comprises charging, electric discharge and activation, and concrete steps are as follows:
(1), charging comprises constant current voltage limiting charging, modified constant-voltage charge and floating charge;
(1.1), constant current voltage limiting charging: lower voltage after battery power discharge, after starting to charge, charger is equal with what setCharging stream carries out constant-current charge, and battery voltage increases, until reach " even charging voltage ";
(1.2), modified constant-voltage charge: be divided into two processes, be followed successively by: 1. when battery voltage reaches after even charging voltage,Charger transfers constant-voltage charge to, and charging current reduces thereupon, turns floating current until charging current is less than; 2. when charging current is littleAfter turning floating current, enter and all fill countdown---" turning the floating charge time " stage, and still maintain aforementioned constant-voltage charge, untilCountdown finishes;
(1.3), floating charging: after turning the timing of floating charge time and finishing, charger proceeds to the floating charge stage, with the floating charging of settingPress battery pack trickle charge, the duration equals the floating charge time of setting;
(2), constant-current discharge process:
(2.1), first, PWM modulation circuit is opened 1# passage, dutycycle from 0% full closing state progressively, fast strengthenTo 100% full opening state;
(2.2), then, the same manner is opened 2#, 3#, 4# passage;
(2.3), open 5# passage, dutycycle progressively strengthens from 0%, until total current is discharge current setting value;
(2.4), along with the carrying out of discharge process, total voltage progressively reduces, and now synchronously increases the dutycycle of 5# passage,Make electric current sustain discharge current setting value, until this passage dutycycle reaches 100%, and then open 6# passage;
Described activation: adopt the charge and discharge cycles of certain frequency, by PbSO4Particle breakdown, reduction; In each large " fillingExpire → discharge → be full of " in the cycle, comprise many little pulse period T of N, and each pulse period comprises charging t1With putElectricity t2; In charging process, adopt " pulse " mode of " fill → put "; In discharge process, also adopt " the arteries and veins of " fill → put "Punching " mode.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106160081A (en) * | 2016-07-11 | 2016-11-23 | 深圳天珑无线科技有限公司 | The charging method of a kind of battery, charging circuit and electronic equipment |
| CN106992565B (en) * | 2017-04-19 | 2023-08-04 | 中国人民解放军第四三二八工厂 | Constant-current discharging device for storage battery |
| CN110380448A (en) * | 2019-08-02 | 2019-10-25 | 北方民族大学 | Voltage-type RMC inverter, the reversible charge-discharge system of electric car and control method |
| CN113991195A (en) * | 2020-05-19 | 2022-01-28 | 杭州铅锂智行科技有限公司 | Charger and charging method thereof |
| CN111817334A (en) * | 2020-07-14 | 2020-10-23 | 珠海格力电器股份有限公司 | Direct-current power supply and distribution control method and system and direct-current micro data center |
| CN112198830A (en) * | 2020-10-30 | 2021-01-08 | 姜金友 | DC emergency evacuation lighting centralized control power supply system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101359841A (en) * | 2007-07-31 | 2009-02-04 | 上海施能电器设备厂 | Charging machine |
| CN103490114A (en) * | 2013-05-22 | 2014-01-01 | 厦门宇虹达光电科技有限公司 | Storage battery charging regenerator |
| CN103579703A (en) * | 2012-07-26 | 2014-02-12 | 中国移动通信集团甘肃有限公司 | Charging method and system for battery pack |
| CN103762391A (en) * | 2013-12-31 | 2014-04-30 | 江苏嘉钰新能源技术有限公司 | Charge method of lead-acid storage battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004282929A (en) * | 2003-03-17 | 2004-10-07 | Sony Corp | Charging method and charging device for battery |
| JP2011244555A (en) * | 2010-05-17 | 2011-12-01 | Panasonic Corp | Charging method and secondary battery |
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2014
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101359841A (en) * | 2007-07-31 | 2009-02-04 | 上海施能电器设备厂 | Charging machine |
| CN103579703A (en) * | 2012-07-26 | 2014-02-12 | 中国移动通信集团甘肃有限公司 | Charging method and system for battery pack |
| CN103490114A (en) * | 2013-05-22 | 2014-01-01 | 厦门宇虹达光电科技有限公司 | Storage battery charging regenerator |
| CN103762391A (en) * | 2013-12-31 | 2014-04-30 | 江苏嘉钰新能源技术有限公司 | Charge method of lead-acid storage battery |
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