CN104158272B - A kind of self adaptation double interval PWM quick charging system - Google Patents
A kind of self adaptation double interval PWM quick charging system Download PDFInfo
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- CN104158272B CN104158272B CN201410359721.1A CN201410359721A CN104158272B CN 104158272 B CN104158272 B CN 104158272B CN 201410359721 A CN201410359721 A CN 201410359721A CN 104158272 B CN104158272 B CN 104158272B
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- analyzer
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- detection device
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Abstract
A kind of self adaptation double interval PWM quick charging system.It includes the first analyzer, the second analyzer, detection device, controller and main circuit；Wherein detection device is connected with the first analyzer and the second analyzer simultaneously, first analyzer and the second analyzer are connected with controller simultaneously, controller is connected with main circuit, and the electric energy of power distribution network is transferred to battery to be charged after main circuit conversion adjusts, and battery two ends connect detection device.Native system advantage: while effectively abatement polarization, it is possible to according to battery oneself state, it is ensured that under premise lossless to battery, dynamically adjust quick charge day part initial current value and current attenuation index, make the two reach optimal；Detection device is simple, it is only necessary to measure cell voltage；Whole system reduces hardware complexity with software complexity, is provided simultaneously with a certain degree of adaptivity with intelligent, without manual intervention in whole charging process, as long as being trained analyzer in advance.
Description
Technical field
The invention belongs to boost battery charge technical field, particularly relate to a kind of self adaptation
Double interval PWM quick charging systems.
Background technology
Accumulator is as the effective energy storage device of one, and range of application is quite varied, the most right
Accumulator carries out effective quick charge and is still a technical barrier so far.The key of quick charge
Be how to solve to be charged with larger current while battery itself will not be caused damage again
The problems such as evil.At present, charger many employings constant voltage and current limiting market used combines, becomes
The technical methods such as curtage interval, fast-pulse charging.Wherein modified constant-voltage charge mould
The formula scope of application is narrower, and charging current can only adapt to the electric power storage of certain capacity scope after adjusting
Pond；Though time-dependent current or voltage discontinuous method can promote charging rate and efficiency, but still need to relatively
The long charging interval；Fast-pulse charging device can complete battery charging in very short time,
But energy conversion efficiency is low, gas efficiency is higher, easily causes plate active material and comes off.
Summary of the invention
In order to solve the problems referred to above, it is an object of the invention to provide the double interval of a kind of self adaptation
PWM quick charging system.
In order to achieve the above object, self adaptation double interval PWM quick charge that the present invention provides
System includes: the first analyzer, the second analyzer, detection device, controller and main circuit；
Wherein detection device is connected with the first analyzer and the second analyzer simultaneously, the first analyzer
Being connected with controller with the second analyzer, controller is connected with main circuit, distribution simultaneously
The electric energy of net is transferred to battery to be charged after main circuit conversion adjusts, and battery two ends connect inspection
Survey device.
Described the first analyzer, the second analyzer include that data acquisition module, A/D change
Module, processor and data storage area.
The advantage of the self adaptation that the present invention provides double interval PWM quick charging system is with positive
Effect:
While effectively abatement polarization, it is possible to according to battery oneself state, it is ensured that right
Under the lossless premise of battery, dynamically adjust quick charge day part initial current value and current attenuation
Index, makes the two reach optimal；Detection device is simple, it is only necessary to measure cell voltage；
Whole system reduces hardware complexity with software complexity, be provided simultaneously with a certain degree of from
Adaptability is with intelligent, without manual intervention in whole charging process, as long as in advance to analysis
Device is trained.
Accompanying drawing explanation
The integrated stand of self adaptation double interval PWM quick charging system that Fig. 1 provides for the present invention
Structure schematic diagram.
Fig. 2 is native system current waveform figure in whole charging process.
Fig. 3 is native system quick charge stage oscillogram.
In figure:
IjFor jth period in quick charge stage optimal initial current value；
T1For the forward intermittent time in quick charge stage；
T2For the reverse intermittent time in quick charge stage；
τ is quick charge stage back discharge pulse width；
U1For quick charge stage, positive charge finish time battery terminal voltage；
U2For quick charge stage, reverse charging finish time battery open circuit terminal voltage；
ScFor battery charge amount.
Detailed description of the invention
The self adaptation with specific embodiment, the present invention provided below in conjunction with the accompanying drawings double interval PWM
Quick charging system is described in detail.
As it is shown in figure 1, self adaptation double interval PWM quick charging system bag that the present invention provides
Include: first analyzer the 1, second analyzer 2, detection device 3, controller 4 and main electricity
Road 5；Wherein detection device 3 is connected with the first analyzer 1 and the second analyzer 2 simultaneously,
First analyzer 1 is connected with controller 4 with the second analyzer 2 simultaneously, controller 4 with
Main circuit 5 is connected, and the electric energy of power distribution network is transferred to wait to fill after main circuit 5 conversion adjusts
Electricity battery, battery two ends connect detection device 3.
First described analyzer the 1, second analyzer 2 is the core component of this charging system,
Possess according to battery oneself state in charging process, analytical calculation reverse depolarization pulse width
The function of degree, quick charge day part optimal initial current value and current attenuation index, it is possible to
Dynamically-adjusting parameter numerical value, on the premise of guarantee is lossless, shortens the charging interval；Described
First analyzer the 1, second analyzer 2 include data acquisition module, A/D modular converter,
Processor and data storage area etc.；Real by software programming for the intelligent algorithm of analytical calculation
Existing；This intelligent algorithm can be neutral net self adaptation, fuzzy rule inference self adaptation or
It is that other possess the algorithm etc. analyzing adaptive ability；First analyzer 1 is shown in Fig. 3
Quick charge stage forward intermittent periods, with battery terminal voltage U1With battery charge amount ScMake
For input, after analytical calculation, draw back discharge pulse width time τ；Second analyzer 2
At the quick charge stage reverse intermittent periods shown in Fig. 3, with battery open circuit terminal voltage U2
As input, after analytical calculation, draw next positive charge period optimal initial current value IjWith
Current attenuation index αj, make the two reach optimum.
The described terminal voltage detecting unit that detection device 3 is battery, is used for measuring and quickly fills
Electricity stage positive charge terminates rear battery terminal voltage U1Put with quick charge stage reverse impulse
Battery open circuit terminal voltage U after electricity2。
The described control core main control part that controller 4 is charging system, its foundation
The back discharge pulse width time τ of first analyzer the 1, second analyzer 2 computational analysis,
Optimal initial current value IjWith current attenuation index αjParameter value, by the PWM that it is internal
Pulse generating unit, the charging pulse waveform needed for generation, as it is shown on figure 3, and will generate
Charging pulse waveform transfer to main circuit 5.
Described current attenuation index αjWith optimal initial current value Ij, battery charge amount Sc
Between relation be:
Wherein, αjCurrent attenuation index for the jth period in quick charge stage；IjFor soon
The optimal initial current value of speed jth period charging stage；C is battery total capacity；ScFor electricity
Pond carrying capacity.
This charging system can in the case of ensureing cell damage is preferably minimized (theoretical feelings
Can reach battery lossless under condition), according to battery oneself state in charging process, analysis meter
Calculate and adjust quick charge stage day part optimal initial current value IjWith current attenuation index
αj；Wherein, first analyzer the 1, second analyzer 2 along with processor ability lifting with
The change of memory block capacity, can be further expanded and (according to practical situation, be led to by many data
Road is connected with multiple detection devices, controller, improves the utilization ratio of analyzer, to reduce
System holistic cost).
Described main circuit 5 is charging major loop part, and it possesses transformation of electrical energy output work
Can, the charging pulse waveform generated according to controller 4, by the electric power in charging major loop
After electronic device carries out correlating transforms to the electric energy in distribution network, flow to battery；Electric power
Electronic device can control the size of positive charge electric current in charging process, back discharge pulse
Electric current duration width and the break-make of electric current；In whole charging process, current waveform
As in figure 2 it is shown, be divided into three phases: a pre-charging stage, use small amount value constant current
Battery is carried out preliminary filling, after preventing deep discharge, the damage that battery is caused by large current charge；
The b quick charge stage；C constant voltage charging phase, uses constant voltage to be charged battery,
Make up the defect of battery undercharge under current-mode.
Additionally, in whole charging process, early stage uses small amount value constant current to carry out pre-to battery
Charging, the infringement in the case of preventing deep discharge, battery large current charge brought；Later stage pair
Battery carries out constant voltage floating charge, it is possible to effectively abatement quick charge stage time-dependent current charging causes
The impact of battery later stage undercharge.
The self adaptation that the present invention provides double interval PWM quick charging system is for overcoming existing filling
Electricity system and device can not effectively be cut down polarization and dynamically adjust day part charging current value
And current attenuation index, battery is carried out the deficiencies such as lossless charging, the technical scheme used
It is: on the basis of existing PWM charge mode, introducing detection device 3 and first, second point
Parser 1,2, first, second analyzer 1, after 2 is trained, it is possible to according to battery-end
Voltage and battery charge amount, width, forward when adjusting the reverse depolarization pulse of quick charge period
Charge period initial current value and current attenuation exponential quantity.Meanwhile, according to battery charge amount,
In precharge, quick charge and switch between the constant voltage floating charge stage.
Claims (2)
1. self adaptation double interval PWM quick charging system, it is characterised in that: described
Self adaptation double interval PWM quick charging system include: the first analyzer (1), second
Analyzer (2), detection device (3), controller (4) and main circuit (5)；Wherein
Detection device (3) is connected with the first analyzer (1) and the second analyzer (2) simultaneously,
First analyzer (1) is connected with controller (4) with the second analyzer (2) simultaneously,
Controller (4) is connected with main circuit (5), and the electric energy of power distribution network is through main circuit (5)
Conversion is transferred to battery to be charged after adjusting, battery two ends connect detection device (3)；The
One analyzer (1) terminates rear battery terminal voltage U1 and battery charge amount S with positive chargec
As input, analytical calculation draws back discharge pulse width time τ；Second analyzer
(2) terminate rear battery open circuit terminal voltage U2 using back discharge to obtain as input, analytical calculation
Go out next positive charge period optimal initial current value IjWith current attenuation index αj, electric current declines
Subtract index αjWith optimal initial current value Ij, battery charge amount ScBetween relation be:
Wherein, αjCurrent attenuation index for the jth period in quick charge stage；IjFor soon
The optimal initial current value of speed jth period charging stage；C is battery total capacity；ScFor electricity
Pond carrying capacity；Detection device (3) realizes the detection function of battery terminal voltage；Controller (4)
According to the analysis result value of the first analyzer (1) Yu the second analyzer (2), regulation and control are internal
Pwm pulse generating means, generates charging pulse and controls waveform；Main circuit (5) is according to control
The angle of flow of the Pulse Width Control waveform conducting related device of device processed (4), fills battery
Electricity.
Self adaptation the most according to claim 1 double interval PWM quick charging system,
It is characterized in that: described the first analyzer (1), the second analyzer (2) include data
Acquisition module, A/D modular converter, processor and data storage area.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410359721.1A CN104158272B (en) | 2014-07-25 | 2014-07-25 | A kind of self adaptation double interval PWM quick charging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410359721.1A CN104158272B (en) | 2014-07-25 | 2014-07-25 | A kind of self adaptation double interval PWM quick charging system |
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| CN104158272A CN104158272A (en) | 2014-11-19 |
| CN104158272B true CN104158272B (en) | 2016-10-19 |
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| CN113497468A (en) * | 2020-03-20 | 2021-10-12 | 华为技术有限公司 | Charging management and control method and electronic equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570558A (en) * | 2012-03-26 | 2012-07-11 | 苏州工业职业技术学院 | Intelligent charger of nickel-hydrogen nickel-cadmium battery and control method thereof |
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| EP2229093B1 (en) * | 2007-12-10 | 2018-04-25 | Ascensia Diabetes Care Holdings AG | Rapid charging and power management of a battery-powered fluid analyte meter |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570558A (en) * | 2012-03-26 | 2012-07-11 | 苏州工业职业技术学院 | Intelligent charger of nickel-hydrogen nickel-cadmium battery and control method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 蓄电池自动充电装置的研究;李定珍;《中国优秀硕士学位论文全文数据库》;20080229(第2期);1－82 * |
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Granted publication date: 20161019 Termination date: 20180725 |