CN107196387A - A kind of batteries fall behind cell self-rescue system and method - Google Patents

A kind of batteries fall behind cell self-rescue system and method Download PDF

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Publication number
CN107196387A
CN107196387A CN201710619212.1A CN201710619212A CN107196387A CN 107196387 A CN107196387 A CN 107196387A CN 201710619212 A CN201710619212 A CN 201710619212A CN 107196387 A CN107196387 A CN 107196387A
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China
Prior art keywords
module
cell
unit
voltage
batteries
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Granted
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CN201710619212.1A
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Chinese (zh)
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CN107196387B (en
Inventor
宋帅宇
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Shandong Trillion Electronic Ltd By Share Ltd
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Shandong Trillion Electronic Ltd By Share Ltd
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014Circuits for equalisation of charge between batteries
    • H02J7/0016Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0021Monitoring or indicating circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0022Management of charging with batteries permanently connected to charge circuit
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007Regulation of charging or discharging current or voltage
    • H02J7/007188Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/007192Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04Regulation of charging current or voltage
    • H02J7/042Regulation of charging current or voltage the charge cycle being controlled in response to a measured parameter
    • H02J7/045Regulation of charging current or voltage the charge cycle being controlled in response to a measured parameter in response to voltage or current
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting

Abstract

Fall behind cell self-rescue system and method the invention discloses a kind of batteries, the system includes:Internal energy source, energy conversion module, cell are saved oneself module and monitoring module, and the internal energy source is used to save oneself module for power supply for cell;Civil power is converted to after direct current and powered as the internal energy source by the energy conversion module by the rectification unit that is set in it;The cell saves oneself module by backward cell bypass, and is connected instead of the backward cell in batteries, carries out continued power;The monitoring module realizes the monitoring and management to charge and discharge process.The present invention is powered using internal energy source instead of original backward cell, and the energy in civil power and backward cell can be made full use of respectively using energy conversion module and energy utilization module two parts energy, solve at present the problem of unitary battery group hydraulic performance decline, endurance are reduced caused by cell aging in batteries.

Description

A kind of batteries fall behind cell self-rescue system and method
Technical field
It is to be related to a kind of batteries to fall behind cell specifically the present invention relates to battery management technical field Self-rescue system and method.
Background technology
Uninterruptible power system is typically using battery as back-up source, and the quality of battery is that power supply is continual heavy Ensure.But the problem of storing capacity deterioration in batteries, the standby time deficiency frequency of occurrences is higher, and this results in part electric power storage The actual life in pond is far below projected life.The unstable stable operation that can be to uninterruptible power system of accumulator property And service life is affected greatly, specifically:
The aging variation of each single battery in batteries is very big, and reason is:
1. batteries are cascades, and the capacity and performance of each battery cell are differed, and this results in discharge and recharge Situations such as super-charge super-discharge occurs in journey;
2. in use, by temperature is inconsistent etc., factor is influenceed each monomer batteries so that ageing process is not Unanimously;
3. due to " wooden barrel short plank law ", the shorter battery life of poor performance can cause the life-span contracting of the batteries at place It is short.
Monitoring and battery self-rescue system are not equipped between the existing each monomer of batteries, in batteries a section or A few section batteries break down, and cause the reduction of whole group battery tension, off-capacity, serious possibility to cause batteries to be opened Road, the signing of influence back-up source ensures time and back-up source power supply quality.
Under normal circumstances, if cause failure due to cell backwardness in backup batteries, operation maintenance personnel is just Replace whole group battery in time or will fall behind cell or batteries with it is new or with not backward battery performance Similar battery carries out combo again, if directly more renewing battery, then each cell performance occurs in whole group battery not Consistent situation, the excellent battery of performance can be influenceed by the battery by poor performance, by good deterioration of battery in charge and discharge process;If Progress will carry out battery combo again, then may require that for a long time, and need to spend very big manpower and cost of transportation, The danger of no back-up source is also faced with simultaneously.Increase new accumulator group, cost can be increased again.
The content of the invention
The present invention is in order to solve the above problems, it is proposed that a kind of batteries fall behind cell self-rescue system and method, The present invention is powered using internal energy source instead of original backward cell, reduces O&M cost, meanwhile, it can use Energy conversion module and energy utilization module two parts energy carry out abundant to civil power and the energy fallen behind in cell respectively Utilize, solve unitary battery group hydraulic performance decline, endurance drop caused by cell aging in batteries at present Low the problem of.
To achieve these goals, the present invention is adopted the following technical scheme that:
A kind of batteries fall behind cell self-rescue system, and the system includes:Internal energy source, energy conversion module, Cell is saved oneself module and monitoring module,
The internal energy source is used to save oneself module for power supply for cell, it is ensured that batteries are normally run;
The input of the energy conversion module is electrically connected with city, and output end connects the internal energy source, the energy Electric main is converted to after direct current and powered as the internal energy source by modular converter by the rectification unit that is set in it;
Save oneself one end of module of the cell is connected with the internal energy source, and the other end is attempted by backward monomer electricity The two ends in pond, obtain falling behind the voltage of cell using the internal energy source, and the backward cell is bypassed, and generation Connected for the backward cell in batteries, carry out continued power;
The monitoring module is connected respectively with other modules in system, and the monitoring module includes microcontroller chip, is born Electric current, the collection of voltage, analysis and the output of control signal in duty system, unlatching, shut-off to modules circuit are carried out Judge with controlling, so as to realize the monitoring and management to charge and discharge process.
Further, described batteries fall behind cell self-rescue system and also included:Fin or other radiatings are set It is standby, it is ensured that circuit is operated in the fin or other heat dissipation equipments within the scope of suitable temperature and is connected with the monitoring module.
Further, the energy conversion module include rectification unit, input filter unit, the first buck chopper unit and First output filter unit, the rectification unit is used to electric main being converted into direct current, described to by the rectification unit Direct current after rectification is filtered processing, obtains stablizing low Wen Bo voltage;After the first buck chopper unit will be filtered Voltage be depressured by the first buck chopper unit, obtain be adapted to internal energy source voltage;First output The voltage that filter unit is exported to the first buck chopper unit is filtered again, the charging voltage stablized.
As a kind of preferred scheme, the energy conversion module also includes:First current feedback unit, first voltage are anti- Unit, the first driver element and the first accessory power supply are presented, first current feedback unit is used for detecting system output end current Size, and the electric current detected and setting are compared, the first buck chopper electricity are set by comparative result The size of the dutycycle on road, and then ensure the stabilization of output voltage;First voltage feedback unit passes through detection reagent output voltage Size, be compared with setting, the size of the dutycycle of the first buck chopper unit set by fiducial value, and then Ensure the stabilization of output voltage;First driver element provides drive circuit for power device in the first buck chopper unit; First accessory power supply is that the monitoring module is powered.
Further, cell module of saving oneself includes:Second buck chopper unit, second output filter unit, Second current feedback unit, second voltage feedback unit, the second driver element and the second accessory power supply, second buck chopper The energy that unit provides internal energy source carries out copped wave processing, and falling in batteries is substituted using obtained voltage, electric current Cell is powered afterwards;The voltage that the second output filter unit is exported to the second buck chopper unit is filtered Ripple, the charging voltage stablized is that the internal energy source powers;Second current feedback unit is used for detection output The size of electric current, is compared, when current is excessive, breaking circuit is protected with regulation overcurrent point;The second voltage Feedback unit, the size for detecting actual output voltage is compared with regulation overvoltage point, and second is set by fiducial value The dutycycle of buck chopper unit, and then ensure the stabilization of output voltage;Second driver element is used to drive second to be depressured Power device in chopper circuit, second accessory power supply is used to power for the control circuit and driving chip in system.
As a kind of preferred scheme, the batteries, which fall behind cell self-rescue system, also to be included:Energy utilization mould Block, the energy utilization module is connected with the monitoring module and the internal energy source respectively, and the energy utilization module Input it is in parallel with the two ends of the backward cell, and then connect be linked into batteries, when batteries are in During charged state, charging can not be participated in, it is necessary to by original to this portion for falling behind cell charging due to falling behind cell Divide energy utilization to get up, give the internal energy source to charge by this portion of energy, so as to improve the efficiency of whole module.
Further, the energy utilization module includes:Boost chopper unit, the 3rd output filter unit, tertiary voltage Feedback unit, the 3rd current feedback unit, the 3rd driver element and the 3rd accessory power supply, during due to charged state, behindhand battery Charging can not be participated in, the boost chopper unit is used original to this part energy for falling behind cell charging, Charged by this portion of energy to internal energy source, so as to improve the efficiency of whole module;The 3rd output filter unit pair The voltage of the boost chopper unit output is filtered processing, and the charging voltage stablized is that internal energy source powers;Institute Tertiary voltage feedback unit is stated by detecting the size of actual output voltage, is compared, is set by fiducial value with setting The size of the dutycycle of chopper circuit, so as to ensure the stabilization of output voltage;3rd current feedback unit, detects the liter Copped wave unit output end current size is pressed, is compared with regulation overcurrent point, when current is excessive, breaking circuit is protected Shield;3rd driver element is used to drive the power device in the boost chopper unit circuit;3rd accessory power supply, Powered for the control circuit and driving chip in system.
Further, the monitoring module includes:Voltage detection unit, current detecting unit and temperature detecting unit, institute Voltage detection unit is stated respectively to save oneself to the energy utilization module, the energy conversion module and the cell module Output voltage is detected;The current detecting unit, respectively to the energy utilization module, the energy conversion module and institute The save oneself output current of module of cell is stated to be detected;The temperature detecting unit, temperature is carried out to the fin in system Degree detection.
Further, the monitoring module also includes current control unit, voltage control unit, temperature control unit and interior Portion's logic control circuit, the current control unit is to the energy utilization module, the energy conversion module and the monomer The battery electric current that module exported of saving oneself is controlled respectively;The voltage control unit is to the energy utilization module, described Energy conversion module and the cell voltage that module exported of saving oneself are controlled respectively;Meanwhile, system operation In, the temperature control unit is controlled with reference to the testing result of the temperature detecting unit to system temperature, if fin Temperature is too high, then other cooling measures in the radiator fan or circuit in open system, it is ensured that circuit is operated in defined temperature In the range of degree;The internal logic control circuits, for being detected to the input in system, output voltage, pass through inside control Coremaking piece carries out logic analysis, the working condition control signal of modules is obtained, so as to realize to modules working condition Regulation and control.
A kind of self-rescue method for falling behind cell self-rescue system based on above-mentioned batteries, this method includes following step Suddenly:
(1) energy conversion module, which is converted to civil power, is conveyed to the internal energy source after galvanic current;Together When,
The energy utilization module gathers the energy of the backward cell, and the energy is sent into the internal energy At amount source;Meanwhile,
The monitoring module monitors the output current of above-mentioned modules, the numerical values recited of voltage, stability and is in real time System temperature variations, when there is unstable situation, are regulated and controled at any time;
(2) the internal energy source is that the cell is saved oneself module for power supply, and the cell is saved oneself described in module Fall behind cell bypass, and connected instead of the backward cell in batteries, carry out continued power.
Compared with prior art, beneficial effects of the present invention are:
(1) present invention is powered using cell module of saving oneself instead of original backward cell, meanwhile, pass through Converge two from civil power and backward cell that the energy conversion module and energy utilization module are provided in internal energy source Portion of energy, makes full use of existing resource, solves the unitary battery caused by cell aging in batteries at present The problem of group hydraulic performance decline, endurance are reduced;
(2) using the present invention, when there is cell backwardness or failure, operation maintenance personnel need not replace whole rent battery Group, it is to avoid unnecessary waste, reduces O&M cost, without backward cell is replaced using new battery, prevents Because each cell performance is inconsistent in batteries, cause the excellent cell of performance by the cell shadow of poor performance Ring, the problem of causing good deterioration of battery in charge and discharge process.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding of the present application, and the application's shows Meaning property embodiment and its illustrate be used for explain the application, do not constitute the restriction to the application.
Fig. 1 is the fundamental diagram of the present invention;
Fig. 2 is the structure chart of the energy conversion module of the present invention;
Fig. 3 is that cell of the present invention is saved oneself the structure chart of module;
Fig. 4 is the structure chart of energy utilization module of the present invention;
Fig. 5 is the structure chart of monitoring module of the present invention;
Wherein:1- internal energies source, 2- energy conversion modules, 3- cells are saved oneself module, 4- energy utilization modules, 5- Monitoring module, 6- falls behind cell, and 7- batteries, 8- civil powers, 9- batteries fall behind cell self-rescue system, 21- Rectification unit, 22- input filter units, 23- the first buck chopper units, 24- first voltage feedback units, the electric currents of 25- first Feedback unit, the accessory power supplys of 26- first, the driver elements of 27- first, the output filter units of 28- first, the buck choppers of 31- second Unit, the output filter units of 32- second, the current feedback units of 33- second, 34- second voltage feedback units, 35- second is aided in Power supply, the driver elements of 36- second, 41- boost chopper units, the output filter units of 42- the 3rd, 43- tertiary voltage feedback units, The current feedback units of 44- the 3rd, the driver elements of 45- the 3rd, the accessory power supplys of 46- the 3rd, 51- microcontroller chips, 52- voltage detectings Unit, 53- current detecting units, 54- temperature detecting units, 55- current control units, 56- voltage control units, 57- temperature Control unit, 58- internal logic control circuits.
Embodiment:
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Following embodiments are a kind of typical embodiment of the application, as illustrated, a kind of batteries fall behind monomer Battery self-rescue system, the system includes:Internal energy source 1, energy conversion module 2, cell are saved oneself module 3, energy utilization Module 4 and monitoring module 5,
The internal energy source 1 is used to power for cell module 3 of saving oneself, it is ensured that the normal operation of batteries 7;
The input of the energy conversion module 2 is connected with civil power 8, and output end connects the internal energy source 1, the energy Amount modular converter 2 is converted to the civil power 9 of exchange after direct current as the internal energy source 1 by the rectification unit 21 set in it Power supply;
Save oneself one end of module 3 of the cell is connected with the internal energy source 1, and the other end is attempted by backward monomer The two ends of battery 6, obtain falling behind the voltage of cell 6 using the internal energy source 1, by the backward cell 6 Road, and connected instead of the backward cell 6 in batteries 7, carry out continued power;
The energy utilization module 4 is connected with the monitoring module 5 and the internal energy source 1 respectively, and the energy It is in parallel with the two ends of the backward cell 6 using the input of module 4, so connect be linked into batteries 7, work as storage When battery pack 7 is in charged state, charging can not be participated in due to falling behind cell 6, to avoid the wasting of resources, it is necessary to will be original Use, filled by this portion of energy to the internal energy source 1 to this part energy for falling behind the charging of cell 7 Electricity, so as to improve the efficiency of whole system.
The monitoring module 5 is connected respectively with other modules in system, and the monitoring module 5 includes microcontroller chip 51, the monitoring module 5 is responsible for electric current in system, the collection of voltage, analysis and the output of control signal, to modules electricity Unlatching, the shut-off on road are judged and controlled, so as to realize the monitoring and management to charge and discharge process.
Described batteries, which fall behind cell self-rescue system, also to be included:Fin or other heat dissipation equipments, it is ensured that electricity Road is operated within the scope of suitable temperature, and the fin or other heat dissipation equipments are connected with the monitoring module.
The energy conversion module 2 includes rectification unit 21, input filter unit 22, the first buck chopper unit 23 and the One output filter unit 28, the input of the energy conversion module 2 is civil power 8, i.e. alternating current, and civil power 8 inputs the energy and turned Change the mold after block 2, sequentially pass through rectification unit 21 and carry out rectification, again stablized after input filter unit 22 is filtered High voltage direct current, then obtained and the internal energy source 1 by the first buck chopper unit 23 and the first output filter unit 28 The charging voltage of the stabilization matched, the first driver element 27 provides drive for power device in the first buck chopper unit 23 Dynamic circuit;First accessory power supply 26 is that the microcontroller chip 51 in the monitoring module 5 is powered.
In the present embodiment, the energy conversion module 2 also includes:First current feedback unit 25 and first voltage feedback Described in member 24, first current feedback unit 24 and first voltage feedback unit 25 will be obtained by the detection of monitoring module 5 The output current of energy conversion module 2, the electric current of voltage and standard setting, voltage are compared, and obtained deviation is inputted Electric current, voltage are analyzed into monitoring module 5, the microcontroller chip 51 in corresponding control signal, monitoring module 5 is obtained Output current and the size of voltage are adjusted by way of controlling dutycycle size, to adjust the output end of energy conversion module 2 Electric current, magnitude of voltage, and then allow energy conversion module 2 to export stable voltage signal to charge for internal energy source 1.
Cell module 3 of saving oneself includes:Second buck chopper unit 31, second exports filter unit 32, second Current feedback unit 33, second voltage feedback unit 34, the second driver element 36 and the second accessory power supply 35, the cell One end of module of saving oneself 3 is connected with the internal energy source 1, and the other end is concatenated in batteries 7, and the cell is saved oneself It is in parallel between module 3 and the backward cell 6, cell module 3 of saving oneself will come from the internal energy source 1 Voltage filter unit 32 exported by the second buck chopper module 31, second respectively carry out copped wave, after filtering process To the voltage of stable cell, and participate in and be powered in whole batteries 7.Second accessory power supply 35 is institute The microcontroller chip 51 stated in monitoring module 5 is powered, and the second described driver element 36 is the second buck chopper unit 31 In power device suitable drive signal is provided, the second described current feedback unit 33 and second voltage feedback unit 34 will The save oneself electric current of module 3, voltage of the cell that the monitoring module 5 is detected is compared with default standard value, by institute Deviation is inputted into the monitoring module 5 and analyzed, obtain micro- in corresponding control signal, the monitoring module 5 Control chip 51 adjusts the cell by way of controlling dutycycle size and saved oneself electric current, the voltage swing of module 3, To ensure that the cell saves oneself the output of module 3 stably.
The input of the energy utilization module 4 is in parallel with the backward cell 6, i.e.,:Concatenate into batteries 7 In, the energy utilization module 4 includes:The output of boost chopper unit the 41, the 3rd filter unit 42, tertiary voltage feedback unit 43rd, the 3rd current feedback unit 44, the 3rd driver element 45 and the 3rd accessory power supply 46, during due to charged state, fall behind monomer Battery 6 can not participate in charging, and original give is fallen behind this part energy profit that cell 6 charges by the boost chopper unit 41 Use, charged by this portion of energy to internal energy source 1, so that the efficiency of whole system is improved, when batteries 7 are in During charged state, the boosted output of copped wave unit the 41, the 3rd filter of this part energy charged to original backward cell 6 Inputted after ripple unit 42 to the internal energy source 1, be that the internal energy source 1 is charged as charging circuit, the described 3rd Accessory power supply 46 is that the microcontroller chip 51 in monitoring module 5 is powered, the 3rd current feedback unit 44, tertiary voltage feedback Unit 43 is compared electric current, magnitude of voltage and the standard value that the energy utilization module 4 that the monitoring module 5 is detected is exported Compared with will compare obtained deviation and input into the monitoring module 5,51 pairs of microcontroller chip in the monitoring module 5 should Deviation is analyzed, and draws control signal, and the microcontroller chip 51 adjusts the energy by way of controlling dutycycle Amount using module 4 output current, the size of voltage, so as to ensure that the stable output of the energy utilization module 4, described the Three driver elements 45 are used to drive the power device in the circuit of boost chopper unit 41;3rd accessory power supply 46, is used Control circuit and driving chip in system are powered.
The monitoring module 5 includes:Microcontroller chip 51, voltage detection unit 52, current detecting unit 53 and temperature inspection Unit 54 is surveyed, the voltage detection unit 52 is respectively to the energy utilization module 4, the energy conversion module 2 and the list The save oneself output voltage of module 3 of body battery is detected;The current detecting unit 55, respectively to the energy utilization module 4, The output current of module 4 of the energy conversion module 2 and the cell saving oneself is detected;The temperature detecting unit 57, temperature detection is carried out to the fin in system.
The monitoring module 5 also includes current control unit 55, voltage control unit 56, temperature control unit 57 and inside Logic control circuit 58,55 pairs of the current control unit energy utilization module 4, the energy conversion module 2 and described The cell electric current that module 3 exported of saving oneself is controlled respectively;56 pairs of the voltage control unit energy utilization mould Block 4, the energy conversion module 2 and the cell voltage that module 3 exported of saving oneself are controlled respectively;Meanwhile, it is Unite in running, the temperature control unit 57 is carried out with reference to the testing result of the temperature detecting unit 54 to system temperature Control, if heatsink temperature is too high, other cooling measures in radiator fan or circuit in open system, it is ensured that circuit work Make within the temperature range of regulation;The internal logic control circuits 58, for being examined to the input in system, output voltage Survey, logic analysis is carried out by internal control chip, the working condition control signal of modules is obtained, so as to realize to each The regulation and control of module working condition.
The present embodiment falls behind the self-rescue method of cell self-rescue system using above-mentioned batteries, and this method includes following Step:
(1) energy conversion module, which is converted to civil power, is conveyed to the internal energy source after galvanic current;Together When,
The energy utilization module gathers the energy of the backward cell, and the energy is sent into the internal energy At amount source;Meanwhile,
The monitoring module monitors the output current of above-mentioned modules, the numerical values recited of voltage, stability and is in real time System temperature variations, when there is unstable situation, are regulated and controled at any time;
(2) the internal energy source is that the cell is saved oneself module for power supply, and the cell is saved oneself described in module Fall behind cell bypass, and connected instead of the backward cell in batteries, carry out continued power.
From above-described embodiment, the present invention saves oneself module instead of original backward cell progress using cell Power supply, meanwhile, the energy conversion module is converged by internal energy source and energy utilization module is provided from civil power and is fallen Two parts energy of cell, makes full use of existing resource afterwards, solve at present because in batteries cell aging lead The problem of unitary battery group hydraulic performance decline of cause, endurance are reduced.In addition, when there is cell backwardness or failure, Operation maintenance personnel need not replace whole rent batteries, it is to avoid unnecessary waste, reduce O&M cost, without using new Battery replaces backward cell, prevents from, because each cell performance is inconsistent in batteries, causing the list that performance is excellent Body battery is influenceed by the cell of poor performance, the problem of causing good deterioration of battery in charge and discharge process.
The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, not to present invention protection model The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not Need to pay various modifications or deform still within protection scope of the present invention that creative work can make.

Claims (10)

1. a kind of batteries fall behind cell self-rescue system, it is characterised in that:Including:
Internal energy source,
For being saved oneself module for power supply for cell, it is ensured that batteries are normally run;And
Energy conversion module,
The input of the energy conversion module is electrically connected with city, and output end connects the internal energy source, the energy conversion Electric main is converted to after direct current and powered as the internal energy source by module by the rectification unit that is set in it;And
Cell is saved oneself module,
Save oneself one end of module of the cell is connected with the internal energy source, and the other end is connected to the backward monomer electricity The two ends in pond, obtain falling behind the voltage of cell using the internal energy source, and the backward cell is bypassed, and generation Connected for the backward cell in batteries, carry out continued power;And
Monitoring module,
Be connected respectively with other modules in the system, the monitoring module include microcontroller chip, be responsible for system in electric current, Collection, analysis and the output of control signal of voltage, unlatching to modules circuit, shut-off judged and controlled, from And realize the monitoring and management to charge and discharge process.
2. a kind of batteries according to claim 1 fall behind cell self-rescue system, it is characterised in that:Also include: Fin or other heat dissipation equipments, it is ensured that circuit is operated within the scope of suitable temperature, the fin or other heat dissipation equipments It is connected with the monitoring module.
3. a kind of batteries according to claim 1 fall behind cell self-rescue system, it is characterised in that:The energy Modular converter includes:
Rectification unit,
For electric main to be converted into direct current;And
Input filter unit,
To being filtered processing by the direct current after the rectification unit rectification, obtain stablizing low Wen Bo voltage;And
First buck chopper unit,
Filtered voltage is depressured by the first buck chopper unit, obtains being adapted to the voltage in internal energy source; And
First output filter unit,
The voltage that the first buck chopper unit is exported is filtered again, the charging voltage stablized.
4. a kind of batteries according to claim 3 fall behind cell self-rescue system, it is characterised in that:The energy Modular converter also includes:
First current feedback unit,
It is compared for the size of detecting system output end current, and by the electric current detected and setting, by comparing knot Fruit ensures the stabilization of output voltage come the size of the dutycycle that sets first buck circuit;And
First voltage feedback unit,
By the size of detection reagent output voltage, it is compared with setting, setting first decompression by fiducial value cuts The size of the dutycycle of ripple unit, and then ensure the stabilization of output voltage;And
First driver element,
It is used as the drive circuit of power device in the first buck chopper unit;And
First accessory power supply,
Powered for the monitoring module.
5. a kind of batteries according to claim 1 fall behind cell self-rescue system, it is characterised in that:The monomer Battery module of saving oneself includes:
Second buck chopper unit,
The energy that internal energy source is provided carries out copped wave processing, and falling in batteries is substituted using obtained voltage, electric current Cell is powered afterwards;And
Second output filter unit,
The voltage that the second buck chopper unit is exported is filtered, the charging voltage stablized is the internal energy Source powers;And
Second current feedback unit,
For the size of detection output electric current, it is compared with regulation overcurrent point, when current is excessive, breaking circuit is carried out Protection;And
Second voltage feedback unit,
Size for detecting actual output voltage, is compared with regulation overvoltage point, is depressured by fiducial value setting second The dutycycle of copped wave unit, and then ensure the stabilization of output voltage;And
Second driver element,
For driving the power device in the second buck circuit;And
Second accessory power supply,
Powered for the control circuit and driving chip in system.
6. a kind of batteries according to claim 1 fall behind cell self-rescue system, it is characterised in that:Also include:
Energy utilization module,
Be connected respectively with the monitoring module and the internal energy source, and the input of the energy utilization module with it is described fall The two ends of cell are in parallel afterwards, and then series connection is linked into batteries, when batteries are in charged state, due to falling Cell can not participate in charging, it is necessary to be used original to this part energy for falling behind cell charging afterwards, lead to Cross this portion of energy to charge to the internal energy source, so as to improve the efficiency of whole module.
7. a kind of batteries according to claim 6 fall behind cell self-rescue system, it is characterised in that:The energy Included using module:
Boost chopper unit,
During due to charged state, behindhand battery can not participate in charging, and the boost chopper unit will be originally to backward cell This part energy of charging is used, and is charged by this portion of energy to internal energy source, so as to improve whole module Efficiency;And
3rd output filter unit,
Processing is filtered to the voltage that the boost chopper unit is exported, the charging voltage stablized supplies for internal energy source Electricity;And
Tertiary voltage feedback unit,
By detecting the size of actual output voltage, it is compared with setting, the duty of chopper circuit is set by fiducial value The size of ratio, so as to ensure the stabilization of output voltage;And
3rd current feedback unit,
The boost chopper unit output end current size is detected, is compared with regulation overcurrent point, when current is excessive, is closed Deenergizing is protected;And
3rd driver element,
For driving the power device in the boost chopper unit circuit;And
3rd accessory power supply,
Powered for the control circuit and driving chip in system.
8. a kind of batteries according to any one of claim 1-7 fall behind cell self-rescue system, its feature exists In:The monitoring module includes:
Voltage detection unit,
The output voltage for module of being saved oneself respectively to the energy utilization module, the energy conversion module and the cell enters Row detection;And
Current detecting unit,
The output current for module of being saved oneself respectively to the energy utilization module, the energy conversion module and the cell is entered Row detection;And
Temperature detecting unit,
Temperature detection is carried out to the fin in system.
9. a kind of batteries according to claim 8 fall behind cell self-rescue system, it is characterised in that:The monitoring Module also includes:
Current control unit,
The electric current that module of being saved oneself to the energy utilization module, the energy conversion module and the cell is exported is carried out Control respectively;And
Voltage control unit,
The voltage that module of being saved oneself to the energy utilization module, the energy conversion module and the cell is exported is carried out Control respectively;And
Temperature control unit,
In system operation, the temperature control unit enters with reference to the testing result of the temperature detecting unit to system temperature Row control, if heatsink temperature is too high, other cooling measures in radiator fan or circuit in open system, it is ensured that circuit It is operated within the temperature range of regulation;And
Internal logic control circuits,
For being detected to the input in system, output voltage, logic analysis is carried out by internal control chip, each is obtained The working condition control signal of module, so as to realize the regulation and control to modules working condition.
10. a kind of batteries according to any one of claim 1-9 fall behind the side of saving oneself of cell self-rescue system Method, it is characterised in that:Comprise the following steps:
(1) energy conversion module, which is converted to civil power, is conveyed to the internal energy source after galvanic current;Meanwhile,
The energy utilization module gathers the energy of the backward cell, and the energy is sent into the internal energy source Place;Meanwhile,
The monitoring module monitors the output current of above-mentioned modules, the numerical values recited of voltage, stability and system temperature in real time Situation of change is spent, when there is unstable situation, is regulated and controled at any time;
(2) the internal energy source is that the cell is saved oneself module for power supply, and the cell is saved oneself to fall behind described in module Cell is bypassed, and is connected instead of the backward cell in batteries, carries out continued power.
CN201710619212.1A 2017-07-26 2017-07-26 Self-rescue system and method for backward single battery of storage battery pack Active CN107196387B (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103560548A (en) * 2013-08-26 2014-02-05 中国科学院苏州纳米技术与纳米仿生研究所 Novel battery pack, battery pack connecting method and battery pack charge and discharge management method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103560548A (en) * 2013-08-26 2014-02-05 中国科学院苏州纳米技术与纳米仿生研究所 Novel battery pack, battery pack connecting method and battery pack charge and discharge management method

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