CN104362402A - Stepped constant current charging-discharging method - Google Patents

Stepped constant current charging-discharging method Download PDF

Info

Publication number
CN104362402A
CN104362402A CN201410483438.XA CN201410483438A CN104362402A CN 104362402 A CN104362402 A CN 104362402A CN 201410483438 A CN201410483438 A CN 201410483438A CN 104362402 A CN104362402 A CN 104362402A
Authority
CN
China
Prior art keywords
current
voltage
charge
charging
constant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410483438.XA
Other languages
Chinese (zh)
Other versions
CN104362402B (en
Inventor
夏军根
陕华平
姚兵
贾灵球
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU ZHE CHANG ELECTRIC EQUIPMENT Co Ltd
Original Assignee
HANGZHOU ZHE CHANG ELECTRIC EQUIPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HANGZHOU ZHE CHANG ELECTRIC EQUIPMENT Co Ltd filed Critical HANGZHOU ZHE CHANG ELECTRIC EQUIPMENT Co Ltd
Priority to CN201410483438.XA priority Critical patent/CN104362402B/en
Publication of CN104362402A publication Critical patent/CN104362402A/en
Application granted granted Critical
Publication of CN104362402B publication Critical patent/CN104362402B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • 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
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention relates to a stepped constant current charging-discharging method which comprises the following steps: 1, constant-voltage current-limiting charging: (1) after voltage of a battery pack reaches even charging voltage, a battery charger converts to constant-voltage charge; (2) after charging current is less than floating charge current, the above constant-voltage charge is still maintained until the end of countdown; 1.3, floating charge: after timing of floating charge time, the battery charger converts to floating charge phase; and 2, constant-current discharging process: a PWM modulation circuit opens a channel No.1, and duty ratio is gradually and rapidly increased from 0% fully-closed state to 100% state; and channels No. 2, No. 3 and No.4 are opened in the same way; and a channel No.5 is opened, and duty ratio is gradually increased from 0% to a set value. The invention has beneficial effects as follows: the principle is simple, effects are good, scalability is good, response speed is fast and current stabilization precision is high; performance is stable and reliable, the environment is protected, and there is no peculiar smell; different voltage ranges and current ranges can be satisfied; stepless adjustment of current can be realized; and constant current precision is not easy to interrupt by the external environment.

Description

A kind of staged constant current charge-discharge method
Technical field
The present invention relates to storage battery field, 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: " resistance-temperature " characteristic utilizing PTC, regulates PTC temperature by controlling rotation speed of fan, and then regulates PTC resistance value, thus controlled discharge electric current, realize constant current.Advantage: structure simply, easily realizes, self-shield characteristic is good, lightweight; Shortcoming: precision of steady current is poor, easily (as: air-flow, ambient temperature etc.) affected by environment; Cannot from small area analysis tune etc.2, " 8421 " code combination mode: many passage parallel connections, according to the combination of " 8421 " code form, (as: each channel power is 100W, 200W, 400W, 800W to each channel discharge power ...), according to different discharging currents, realize constant current by Multichannel combination break-make mode.Advantage: principle simply, easily realizes, reliability is high; Shortcoming: by the restriction of minimum power passage, cannot realize the stepless adjustable of electric current, precision of steady current is poor.3, power tube mode of loading: be simulate adjustable resistance as discharge load with power tube, realize constant current.Advantage: precision of steady current is good, steady flow rate is fast, affected by environment little; Shortcoming: comparatively large by volume, weight, not easily realizes big current.
Traditional active mode is generally activated by the degree of depth " be full of → discharge (general release half capacity) → be full of " circulation, this mode is consistent with " property checked is discharged → charged " process in regular maintenance in essence, effect is very not obvious, and be deep discharge mode due to what adopt, frequent activation will have a strong impact on storage battery " circulation " useful life.Lead acid accumulator comprises " cycle life " and " float life " useful life.According to the difference of application scenario, emphasis is also different, and the production technology of employing also differs widely.As: electrokinetic cell stresses " cycle life ", and pole plate is thick; And the storage battery that power supply uses in support stresses " float life ", pole plate is thinner, therefore, will greatly shorten its useful life to the frequent degree of depth discharge and recharge of the backup battery stressing " float life ".
Summary of the invention
Object of the present invention is exactly to overcome above-mentioned problems of the prior art, and provides a kind of staged constant current charge-discharge method.
The object of the invention is to have come by following technical solution.This staged constant current charge-discharge method, the method comprises charging, electric discharge and activates, 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: after battery power discharge, voltage reduces, and after starting charging, charger carries out constant current charge with the bulk charge stream of setting, 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. after battery voltage reaches even charging voltage, charger transfers constant voltage charge to, and charging current reduces thereupon, until charging current is less than turn floating current; 2., after charging current is less than and turns floating current, enter and all fill countdown---" turning the floating charge time " stage, and still maintain aforementioned constant voltage charge, until countdown terminates;
(1.3), floating charge: turn after the timing of floating charge time terminates, charger proceeds to the floating charge stage, and with the float charge voltage set to battery pack trickle charge, the duration equals the floating charge time set;
(2), constant-current discharge process:
(2.1), first, PWM circuit debugging 1# passage, duty ratio is increased to the full opening state of 100% progressively, fast from 0% full closing state;
(2.2), then, the same manner opens 2#, 3#, 4# passage;
(2.3), open 5# passage, duty ratio progressively strengthens from 0%, until total current is discharging current set point;
(2.4), along with the carrying out of discharge process, total voltage progressively reduces, and now synchronously increases the duty ratio of 5# passage, makes electric current sustain discharge current setting value, until this passage duty ratio 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: the charge and discharge cycles adopting certain frequency, by PbSO 4particle breakdown, reduction; Each " be full of → discharge → be full of " greatly in the cycle, comprise the pulse period T that many of N is little, and each pulse period comprises charging t 1with electric discharge t 2; In charging process, adopt " pulse " mode of " fill → put "; In discharge process, too so.
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 circuit adopts pure resistance, stable performance, reliable, and environment-protective no-smell;
(3) different resistance/performance numbers, can meet the demand of different voltage range, current range;
(4) according to actual requirement, electric current can realize stepless adjustable;
(5) constant current accuracy is not subject to external environmental interference, as: temperature, humidity, air-flow etc.
Accompanying drawing explanation
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.
Embodiment
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 activates, 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: after battery power discharge, voltage is lower, and after starting charging, charger carries out constant current charge with " the bulk charge stream " of setting, and battery voltage increases, until reach " even charging voltage ".This phase duration: depend on battery performance and charging current.
(1.2), modified constant-voltage charge: be divided into two processes, be followed successively by: 1. after battery voltage reaches " even charging voltage ", charger transfers constant voltage charge to automatically, and charging current reduces thereupon, until charging current is less than " turning floating current "; 2., after charging current is less than " turning floating current ", enter " all filling countdown "---" turning the floating charge time " stage, and still maintain aforementioned constant voltage charge, until countdown terminates.This phase duration: depend on battery performance and charging current+" turning the floating charge time ".
(1.3), floating charge: after " turning the floating charge time " timing terminates, charger proceeds to the floating charge stage automatically, with " float charge voltage " that set to battery pack trickle charge.This phase duration: equal " the floating charge time " that sets.
The universal standard: even charging voltage 2.35V, float charge voltage 2.25V, bulk charge stream 0.1C 10a, all fill and turn floating current 0.01C 10
(2), constant-current discharge process: (citing: starting voltage 227.7V; Discharging current set point 30A)
(1) first, " PWM circuit " opens 1# passage, and duty ratio was increased to for 100% (standard-sized sheet leads to) progressively, fast from 0% (contract fully); Now gathering total current is: 6.9A;
(2) then, the same manner opens 2#, 3#, 4# passage, and now total current is: 27.6A;
(3) open 5# passage, duty ratio 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 duty ratio of 5# passage, makes electric current maintain 30A, until this passage duty ratio reaches 100%, and then opens 6# passage;
(5) the constant current process of other current settings is similar.
As shown in Figure 1:
1,220V battery pack is 103-108 joint containing cell quantity, then:
Assembled battery total voltage lower limit is: 1.80 × 103=185.4V;
The assembled battery total voltage upper limit is: 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 duty ratio is 0% ~ 100%;
4, each channel current maximum: when total voltage is lower limit 185.4V, I=5.62A; When total voltage is higher limit 243V, I=7.36A;
5, the total parallel resistance minimum value in Tu Zhong 11 tunnel is 3 Ω, known according to (I=U ÷ R), all can reach 60A discharging current when total voltage is not less than 180V;
6, by Power Limitation, total voltage can not higher than 260V;
7, in order to eliminate electric current " pulsation ", electric current smoothing circuit (omitting in figure) is added.
Adopt " pulsed " active mode, can well solve above-mentioned shortcomings, the battery performance decline caused for sulfation has good repairing effect, both battery capacity was recovered to greatest extent, additionally reducing the impact on service lifetime of accumulator, is current optimal battery activation mode.
Internal storage battery electrochemical reaction is:
Electric discharge: positive/negative plate active material (Pb, PbO 2) generate PbSO with sulfuric acid reaction 4;
Charging: under the effect of charging current, by PbSO 4be reduced to Pb, PbO 2and H 2sO 4.
So-called storage battery " sulfation ", mainly refers to the PbSO that internal storage battery generates 4particle cannot be reduced to active material (Pb, PbO completely 2, H 2sO 4), cause battery capacity to decline, internal resistance increases, as activated not in time, and PbSO 4particle can be increasing, makes storage battery accelerated deterioration.
" pulsed " active mode is as shown in Figure 2: described activation: the charge and discharge cycles adopting certain frequency, by PbSO 4particle breakdown, reduction.Each " be full of → discharge → be full of " greatly in the cycle, comprise the pulse period T that many of N is little, and each pulse period comprises charging t 1with electric discharge t 2.In charging process, not trickle charge always, but adopt " pulse " mode of " fill → put "; In discharge process, too so.Through my company's long term test gained, this method declines to the battery capacity that " sulfation " causes and has obviously effect.This method shortcoming: have on hardware and software and higher realize difficulty, and the pulse frequency adopted need could obtain through lot of experiments.
In addition to the implementation, the present invention can also have other execution modes, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of application claims.

Claims (2)

1. a staged constant current charge-discharge method, is characterized in that: the method comprises charging, electric discharge and activates, 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: after battery power discharge, voltage reduces, and after starting charging, charger carries out constant current charge with the bulk charge stream of setting, 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. after battery voltage reaches even charging voltage, charger transfers constant voltage charge to, and charging current reduces thereupon, until charging current is less than turn floating current; 2., after charging current is less than and turns floating current, enter and all fill countdown---" turning the floating charge time " stage, and still maintain aforementioned constant voltage charge, until countdown terminates;
(1.3), floating charge: turn after the timing of floating charge time terminates, charger proceeds to the floating charge stage, and with the float charge voltage set to battery pack trickle charge, the duration equals the floating charge time set;
(2), constant-current discharge process:
(2.1), first, PWM circuit debugging 1# passage, duty ratio is increased to the full opening state of 100% progressively, fast from 0% full closing state;
(2.2), then, the same manner opens 2#, 3#, 4# passage;
(2.3), open 5# passage, duty ratio progressively strengthens from 0%, until total current is discharging current set point;
(2.4), along with the carrying out of discharge process, total voltage progressively reduces, and now synchronously increases the duty ratio of 5# passage, makes electric current sustain discharge current setting value, until this passage duty ratio reaches 100%, and then open 6# passage;
(2.5) the constant current process of other current settings is identical with above-mentioned steps.
2. staged constant current charge-discharge method according to claim 1, is characterized in that: described activation: the charge and discharge cycles adopting certain frequency, by PbSO 4particle breakdown, reduction; Each " be full of → discharge → be full of " greatly in the cycle, comprise the pulse period T that many of N is little, and each pulse period comprises charging t 1with electric discharge t 2; In charging process, adopt " pulse " mode of " fill → put "; In discharge process, too so.
CN201410483438.XA 2014-09-19 2014-09-19 A kind of staged constant current charge-discharge method Active CN104362402B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410483438.XA CN104362402B (en) 2014-09-19 2014-09-19 A kind of staged constant current charge-discharge method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410483438.XA CN104362402B (en) 2014-09-19 2014-09-19 A kind of staged constant current charge-discharge method

Publications (2)

Publication Number Publication Date
CN104362402A true CN104362402A (en) 2015-02-18
CN104362402B CN104362402B (en) 2016-05-18

Family

ID=52529642

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410483438.XA Active CN104362402B (en) 2014-09-19 2014-09-19 A kind of staged constant current charge-discharge method

Country Status (1)

Country Link
CN (1) CN104362402B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN106992565A (en) * 2017-04-19 2017-07-28 中国人民解放军第四三二八工厂 A kind of Battery Constant Current Discharging Device
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
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
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

Citations (6)

* Cited by examiner, † Cited by third party
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
CN101359841A (en) * 2007-07-31 2009-02-04 上海施能电器设备厂 Charging machine
JP2011244555A (en) * 2010-05-17 2011-12-01 Panasonic Corp Charging method and secondary battery
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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
CN101359841A (en) * 2007-07-31 2009-02-04 上海施能电器设备厂 Charging machine
JP2011244555A (en) * 2010-05-17 2011-12-01 Panasonic Corp Charging method and secondary battery
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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN106992565A (en) * 2017-04-19 2017-07-28 中国人民解放军第四三二八工厂 A kind of Battery Constant Current Discharging Device
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

Also Published As

Publication number Publication date
CN104362402B (en) 2016-05-18

Similar Documents

Publication Publication Date Title
CN104362402B (en) A kind of staged constant current charge-discharge method
CN104600799A (en) Balancing circuit and method of series battery pack
CN105226733A (en) Active-passive hybrid equalization architecture and method for battery pack
CN102136613B (en) Valve-regulated lead-acid battery equalizing charge method
CN102110863B (en) Temperature measurement charging method of storage battery
CN107666167A (en) A kind of novel three-stage charging management method and device
CN103227351A (en) Pulse charging method used for prolonging VRLA battery service life
CN102891340A (en) Step charging method
CN101976744A (en) Charging and discharging method for secondary battery
CN102130368B (en) Preheating charging method of valve-controlled type lead-acid storage battery
CN204481518U (en) A kind of solar powered power circuit
CN110365075A (en) A kind of battery charger and method
CN203071625U (en) Self-discharge consistency adjusting circuit of series battery, and battery pack
CN101964431A (en) Charging and discharging method of lithium secondary battery
CN104979569B (en) A kind of device and method for improving zinc-silver reserve battery loading transient voltage
CN102064589A (en) Charging device of valve-regulated lead-acid accumulator
CN103441314B (en) A kind of intelligent charging machine charging method
CN102270871A (en) Pneumatic-control charging-type electric quantity equalizing system for power battery pack
CN202405819U (en) Intelligent charge-discharge management module for lead acid storage battery
CN202178596U (en) Pneumatic control rechargeable electric quantity balancing system of power battery pack
CN102136614A (en) Self-adapting charging method for valve-regulated lead-acid storage battery
CN201667369U (en) Charger for maintaining lead-acid storage battery of electrocar
CN101635381B (en) Power lithium-ion battery charging set provided with equalizing charge inside
CN105162235B (en) The charge and discharge control method of energy-saving bus
CN203800672U (en) Simulated lighting energy storage strike type storage battery charger

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant