CN105896627A - System based on battery pack self-reconfiguration and intelligent control method thereof - Google Patents
System based on battery pack self-reconfiguration and intelligent control method thereof Download PDFInfo
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- CN105896627A CN105896627A CN201410654747.9A CN201410654747A CN105896627A CN 105896627 A CN105896627 A CN 105896627A CN 201410654747 A CN201410654747 A CN 201410654747A CN 105896627 A CN105896627 A CN 105896627A
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Abstract
The invention relates to a system based on battery pack self-reconfiguration and an intelligent control method thereof. The system comprises a battery array, a control portion and an output and input portion. The self-reconfiguration control method is characterized in that during a whole battery pack charging and discharging process, a process of switching into a ''temporary resection battery pack set'' from a ''main circuit battery pack set'', a process of switching into a ''fault battery pack set'' from the ''main circuit battery pack set'', a process of switching into the ''main circuit battery pack set'' from the ''temporary resection battery pack set'' and an ''equalization mode'' process exist; and then, according to a corresponding switching condition, a battery is dynamically switched among the ''main circuit battery pack set'', the ''temporary resection battery pack set'' and the ''fault battery pack set''. The system and the method have advantages that an imbalance problem of the battery pack charging and discharging is solved; an output or input voltage grade can be flexibly configured; flexible battery pack configuration can be used to carry out charging and discharging; and a service life of a battery pack can be prolonged.
Description
Technical field
The invention belongs to technical field of battery management, especially relate to a kind of system based on set of cells via Self-reconfiguration and Based Intelligent Control thereof
Method.
Background technology
In the mobile device such as electric automobile, lunar rover, need battery as the main source of supply of its energy, but due to monomer
The terminal voltage of battery is relatively low, needs to be connected in series cell, so can be only achieved the voltage request of electrical equipment.
Set of cells, in charge and discharge process, also exists the uneven unbalanced phenomenon of cell terminal voltage, this phenomenon
Result is to greatly reduce the capacity usage ratio of system.At present, solving the unbalanced mode of set of cells mainly has two kinds, Yi Zhongshi
Parallel resistance, electric capacity is used to carry out the passive solution of electric voltage equalization；In this scheme, due to resistance heating and the dispersion of device
Property, connected mode fixes, it is impossible to well solve unbalanced, the problem of heating accident；One is to use voltage in set of cells high
The active solution powered to the cell that voltage is low of cell；In this scheme, owing to connected mode is fixed, it is impossible to
The problem well solving the faults such as heating.
In the current mode solving series battery discharge and recharge, although overcome the problem that connected mode is fixing, but series electrical
Chi Zuzhong, the unbalanced problem in charge and discharge process yet suffers from.
Summary of the invention
It is an object of the invention to propose a kind of system based on set of cells via Self-reconfiguration and intelligent control method thereof, it both can solve
The unbalanced problem of set of cells, can configure again charge and discharge system and the set of cells of excision fault simultaneously flexibly, improve set of cells
Service life.
The present invention is achieved through the following technical solutions:
A kind of system based on set of cells via Self-reconfiguration, it is characterised in that include cell array, control part and output importation；
Described cell array includes set of cells, balanced unit；Described set of cells include cell unit set, switch Sn (n=1,
2...N: the number of cell array)；Described cell is ferric phosphate lithium cell；Described battery unit includes cell and opens
Close Kn (number of n=1,2...N: cell array)；Described cell is connected in series with switch Kn；Described switch S with
Battery units in parallel connects；Described balanced unit includes DC module 1, diode Dn (n=1,2...2N；N: cell array
Number) and switch Cn (n=1,2...2N；The number of N: cell array)；The positive pole and two of described DC module 1 outfan
Pole pipe D2n+1 (n=0,1,2...N-1；The number of N: cell array) positive pole connect；Described diode D2n+1 (n=0,
1、2...N-1；The number of N: cell array) negative pole with switch C2n+1 (n=0,1,2...N-1；The number of N: cell array)
One end be connected in series；Described switch C2n+1 (n=0,1,2...N-1；The number of N: cell array) other end is with described
Battery unit positive pole connect；The negative pole of described DC module 1 outfan and diode D2n (n=1,2...N-1；N:
The number of cell array) negative pole connect；Described diode D2n (n=1,2...N；The number of N: cell array) positive pole with
Switch C2n (n=1,2...N；The number of N: cell array) one end be connected in series；Described switch C2n (n=1,2...N；
The number of N: cell array) other end is connected with the negative pole of described battery unit；Described switch Kn, switch Sn, switch Cn
For MOSFET；The end that controls of described switch is connected with the I/O pin of controller by driving；Described switch Kn, switch Sn are mutual
Scold；Described switch C2n, switch C2n+1 are linkages.
Described control part includes controller, touch screen；Described temperature sensor is placed in described cell array and often saves cell
Surface；Described controller detects the surface temperature often saving cell in described cell array by temperature sensor；Described voltage passes
Sensor is connected with the battery units in parallel in described cell array；Described controller is by every in cell array described in voltage sensor senses
The terminal voltage of joint cell；Described current sensor is connected in series with the positive pole of the outfan of cell array；Described controller passes through
Current sensor detects the electric current of described cell array；Described touch screen is connected with described controller；Described controller is also by voltage
The output end voltage of sensor detection output importation.
Described output importation includes the DC-DC module 2 of wide-voltage range, reversing switch；Described output importation
The most extremely Vin of input (+), negative pole be Vin (-), the most extremely Vout of outfan (+), negative pole be Vout (-)；
The most extremely Vi of the input of the DC-DC module 2 of described wide-voltage range (+), negative pole be Vi (-)；Described Width funtion
The most extremely Vo of the outfan of the DC-DC module 2 of scope (+), negative pole be Vo (-)；The Vin of described output importation
(+) is connected by the positive pole of described current sensor with described cell array；The Vin of described output importation (-)
It is connected with the negative pole of described cell array；Described reversing switch includes JM_i, JM_i ' (i=1,2,3,4)；Described opens
Close JM_4 one end and Vin (+) be connected, the other end and Vi (+) be connected；One end of described switch JM_2 and Vout (+)
Connect, the other end and Vi (+) be connected；One end of described switch JM_3 and Vin (+) be connected, the other end and Vo (+)
Connect；Described switch JM_1 one end and Vout (+) be connected, the other end and Vo (+) be connected；Described switch JM_4 '
One end and Vin (-) be connected, the other end and Vi (-) be connected；One end of described switch JM_3 ' and Vout (-) even
Connect, the other end and Vi (-) be connected；One end of described switch JM_2 ' and Vin (-) be connected, the other end and Vo (-)
Connect；Described switch JM_1 ' one end and Vout (-) be connected, the other end and Vo (-) be connected；Described switch JM_i,
JM_i ' (i=1,2,3,4) is MOSFET；Described switch JM_i, JM_i ' is gang switch.
A kind of intelligent control method based on set of cells via Self-reconfiguration, it is characterised in that:
Whole set of cells is divided into " main road set of cells set ", " temporarily excision set of cells set ", " fail battery group set "；Its
In, " main road set of cells set "---the set of cells of normal work in-cell array；" temporarily excision set of cells set "----battery
The set of cells of battle array temporarily excision, is cut time suitable in " main road set of cells set " again；" fail battery group set "----
The set of cells of permanent excision in cell array, the personnel that need repairing change timely.In the charge and discharge process of set of cells, have four
Individual subprocess, as a example by discharge process:
1) process of " temporarily excision set of cells set " it is cut into from " main road set of cells set ": previously according to cell
Flash-over characteristic, arranges a voltage decreasing rate threshold values VThreshold values；According to the terminal voltage of certain time interval T detection cell,
Then according to the voltage decreasing rate of the following formula each cell of calculating:When
Vn_down＞ VThreshold valuesTime, this joint cell is resected in " temporarily excision set of cells set " from " main road set of cells set ".
2) process of " fail battery group set " it is cut into from " main road set of cells set ": when " main road set of cells set "
Total voltage when requiring less than the minimum voltage of DC module, all batteries in " temporarily excision set of cells set " are cut into " master
Road set of cells set " in.
3) process of " main road set of cells set " it is cut into from " temporarily excision set of cells set ": when " main road set of cells set "
In total voltage when requiring less than the minimum voltage of DC module, all batteries in " temporarily excise set of cells set " are cut into
In " main road set of cells set ".
4) " balanced mode " process: a kind of mode uses by the high battery of terminal voltage in " main road set of cells set " to terminal voltage
Low battery is powered, in the process, and the terminal voltage of every batteries in dynamic monitoring " main road set of cells set ", then according to
Terminal voltage, by low high serial number, makes the highest number to minimum number power supply, second highest number the rest may be inferred to secondary low power supply etc.；Separately
A kind of mode uses by outside (can be " main road set of cells set " output voltage through DC module) to the low battery of terminal voltage
Power supply, in the process, in dynamic monitoring " main road set of cells set ", the terminal voltage of every batteries, then calculates its meansigma methods,
Sub-average battery is powered.
A kind of intelligent control method based on set of cells via Self-reconfiguration, according to above-mentioned various conditions, dynamically by battery at " main road
Set of cells set ", " temporarily excision set of cells set ", switch between " fail battery group set ", its via Self-reconfiguration Method
Step is as follows:
Step 1: it is first determined whether meet the bar being resected to " temporarily excision set of cells set " from " main road set of cells set "
Part, if it is satisfied, be resected to cell from " main road set of cells set " in " temporarily excision set of cells set ".
Step 2: judge whether to meet the condition being resected to " fail battery group set " from " main road set of cells set ", if
Meet, cell is resected in " fail battery group set " from " main road set of cells set ".
Step 3: judge whether to meet from " temporarily excision set of cells set " incision " main road set of cells set " condition, if
Meet, all batteries in " temporarily excision set of cells set " are all cut in " main road set of cells set ".
Step 4: judge whether to meet " balanced mode " condition, the battery if meeting condition, in " main road set of cells set "
" balanced mode " process of entrance.
Step 5: in whole discharge process, said process constantly repeat step 1,2,3,4,5, until electric discharge terminate.
It is an advantage of the current invention that:
1) the unbalanced problem of battery set charge/discharge is solved；
2) can flexible configuration output or the grade of input voltage；
3) discharge and recharge can be carried out with the configuration of set of cells flexibly；
4) service life of set of cells can be improved；
Accompanying drawing explanation
Fig. 1 is the system block diagram of the embodiment of the present invention.
Fig. 2 is the discharge process flow chart of the embodiment of the present invention.
Fig. 3 is " balanced mode " process flow diagram flow chart in the embodiment of the present invention.
Detailed description of the invention
The present invention will be further described with example below in conjunction with the accompanying drawings, and protection scope of the present invention is not limited to the following stated.
Embodiment:
Fig. 1 is the system block diagram of the embodiment of the present invention；It includes " cell array ", " control part ", " input/output part "；
The function that it realizes is:
1) voltage of set of cells, temperature, electric current are monitored in real time；
2) can be with biodynamic ablation/add a few batteries；
3) can charge to dynamically certain batteries by " DC module 1 "；
4) ensure that whole system can be charged and can discharge；
Below, for above-mentioned functions, it is presented below:
Connecting voltage, temperature sensor in cell array at each end points, the outfan in cell array connects current sensor (Hall
Sensor), the controller of " control part " is by gathering the numerical value of these sensors, thus realizes monitoring in real time the electricity of set of cells
Pressure, temperature, electric current.In Fig. 1 " control part ", solid line "-" represents the connecting line of voltage sensor；Dotted arrow
"---→ " represents the connecting line of temperature sensor；Dotted ellipseRepresent the line (Hall element) of current sensor.
When set of cells normally works, K1---KN is Guan Bi, switchs what S1---SN, C1---C2N were off accordingly；When
When breaking down or excised by battery dynamically, such as, want to excise battery 2, it is only necessary to give switch K2, S2 by controller
Send control signal, disconnect switch K2, Guan Bi switch S2, other the most similar；When wanting certain batteries incision electricity
During the group of pond, such as, battery 3 is cut set of cells, only need to send control signal, Guan Bi to switch K3, S3 by controller
Switch K3, disconnect switch S3, other the most similar；By the way, thus to realize biodynamic ablation/add a few
Batteries.
If " DC module 1 " is powered to corresponding battery n, then switch C2n-1, C2n are closed at；If stopped
Power supply, then simultaneously switch off switch C2n-1, C2n；Thus realize can being entered to certain batteries dynamically by " DC module 1 "
Row charging.In order to prevent short circuit between circuit from ensureing the most again the normal work of supply access, at switch Cx, (x represents switch
Numbering, from 1 to 2N) path add forward connect diode.
In order to ensure that whole system can be charged and can discharge, the integrated connection figure of its " wide input voltage DC module 2 " is as " defeated
Enter/output part " shown in；When system enters charge mode, switch JM_2, JM_2 ', JM_3, JM_3 ' Guan Bi, switch
JM_1, JM_1 ', JM_4, JM_4 ' disconnect；When system enters discharge mode, switch JM_1, JM_1 ', JM_4, JM_4 '
Guan Bi, switchs JM_2, JM_2 ', JM_3, JM_3 ' and disconnects.
It is concrete that " No. 1 switch " in Fig. 1 represents that cell array internal Sn, Kn (number of n=1,2...N: cell array) switchs
Hardware realizes, switch Kn be N type switch tube, Sn be p-type switching tube, its operation principle is: " drive plate to control pipe when giving
Foot " when writing 1, then open switch Kn, disconnect switch Sn；When writing 0, then open switch Sn, disconnect switch Kn；" open for No. 2
Close " particular hardware that represents cell array internal C2n, C2n-1 switch realizes, and C2n-1, C2n, is N type switch tube, its work
Principle is: when writing 1 to " driving plate to control pin ", then Guan Bi switch C2n, C2n+1；When writing 0, then open switch
C2n、C2n+1；" No. 3 switches " represents JM_i, JM_i ' (i=1,2,3,4) particular hardware of switching realizes, it with
" No. 2 switches " is similar.
Based on above-mentioned hardware designs, realize the control method of a kind of via Self-reconfiguration on the controller；For the ease of narration discharge process,
Whole discharge flow path is split into Fig. 2, Fig. 3 two parts；Wherein, Fig. 2 is the discharge process flow chart of the embodiment of the present invention；
Fig. 3 is " balanced mode " process flow diagram flow chart in the embodiment of the present invention.Below Fig. 2, Fig. 3 are described below:
1) as in figure 2 it is shown, wherein, the implication that each labelling represents is as follows for the discharge process flow chart of whole system:
1. the voltage rate of descent of battery terminal voltage in " Vdown " representative " main road set of cells set ", its value is according to formula (1)
Calculate.
2. " V threshold values " represents the terminal voltage rate of descent threshold values that the flash-over characteristic according to cell sets.
3. the temperature of battery in " BT " representative " main road set of cells set ".
4. the temperature upper limit set in " B threshold values " representative " main road set of cells set ".
5. the battery total voltage in " Vleft " representative " main road set of cells set ".
6. the input voltage range lower limit of " input/output part " DC module in " Vdc_min " representative graph 1.
7. the number of battery in " N temporarily excises set of cells set " representative " temporarily excision set of cells set ".
Work process is: first Guan Bi switch JM_1, JM_1 ', JM_4, JM_4 ', disconnects JM_2, JM_2 ', JM_3, JM_3 '
Switch, enters in discharge mode；When discharge mode starts, battery all of in set of cells is put into " main road set of cells set "
In, then carry out following steps:
A) in certain time interval scans " main road set of cells set " dynamically, whether the voltage decreasing rate of every batteries
More than fall off rate threshold values set in advance, if very, this batteries is resected to by " main road set of cells set " " temporarily
Excision set of cells set " in；After all batteries are scanned in " main road set of cells set ", enter step b).
B) in certain time interval scans " main road set of cells set " dynamically, whether the temperature of every batteries is more than in advance
The temperature upper limit set, if very, is resected to " fail battery group set " by this batteries by " main road set of cells set "
In；After all batteries are scanned in " main road set of cells set ", enter step c).
C) judge whether the total voltage of the battery in " main road set of cells set " is less than the lower limit of DC module input voltage, as
Fruit is true, is cut in " main road set of cells " set by the battery that has in " temporarily excision set of cells set " more；Subsequently into
In step d).
D) judge whether the total voltage of the battery in " main road set of cells set " is less than the lower limit of DC module input voltage, with
Time " temporarily excision set of cells set " in number of battery cells whether be zero, if very, then enter " balanced mode " process；
Otherwise repeat step a), b), c), d).
2) as it is shown on figure 3, wherein, the implication that each labelling represents is as follows for " balanced mode " process flow diagram flow chart:
1. the average voltage of battery in " Vmean " representative " main road set of cells set ".
2. the quantity of battery in " N1 " representative " main road set of cells set ".
3. " i "=represent variable, it is used for storing the number of times of circulation.
4. " VB_i " represents the i-th batteries terminal voltage of discharge battery group.
5. " V crosses and puts " represents the overdischarge pressure in discharge process arranged every batteries.
Work process is: when electric discharge starts, first variable i is set to 1；Then according to following steps are carried out:
A) judge that whether terminal voltage VB_i of the i-th batteries is crossed less than the battery Cross prevention voltage V set to put, if it is lower,
Directly this battery is excised from " main road set of cells set "；Subsequently into step b).
B) judge whether total voltage Vleft in " main road set of cells set " is less than the lower limit Vdc_min of DC module input voltage,
If it is lower, directly terminate discharge process；Otherwise enter step c).
C) according to formulaCalculate the average voltage Vmean in " main road set of cells set "；Then sentence
Whether the battery terminal voltage VB_i in disconnected " main road set of cells set " less than Vmean, if very, then Guan Bi switch C2i,
C2i+1, and make variable i increase by 1；If vacation, then disconnect switch C2i, C2i+1, and make variable i increase by 1.
D) judge whether i is equal to N1, if the most then variable i being set to 1；Subsequently into step e).
E) repeated execution of steps a), b), c), d).
Claims (8)
1. a system based on set of cells via Self-reconfiguration, it is characterised in that: include cell array, control part and output importation；
Described cell array includes set of cells, balanced unit；Described set of cells includes cell unit set, switch Sn (number of n=1,2...N: cell array)；
Described battery unit includes cell and switch Kn (number of n=1,2...N: cell array)；
Described cell is connected in series with switch Kn；
Described switch S is connected with battery units in parallel；
Described balanced unit includes DC module 1, diode Dn (n=1,2...2N；The number of N: cell array) and switch Cn (n=1,2...2N；The number of N: cell array)；
The positive pole of described DC module 1 outfan and diode D2n+1 (n=0,1,2...N-1；The number of N: cell array) positive pole connect；
Described diode D2n+1 (n=0,1,2...N-1；The number of N: cell array) negative pole with switch C2n+1 (n=0,1,2...N-1；The number of N: cell array) one end be connected in series；
Described switch C2n+1 (n=0,1,2...N-1；The number of N: cell array) other end is connected with the positive pole of described battery unit；
The negative pole of described DC module 1 outfan and diode D2n (n=1,2...N-1；The number of N: cell array) negative pole connect；
Described diode D2n (n=1,2...N；The number of N: cell array) positive pole with switch C2n (n=1,2...N；The number of N: cell array) one end be connected in series；Described switch C2n (n=1,2...N；The number of N: cell array) other end is connected with the negative pole of described battery unit；Described switch Kn, switch Sn, switch Cn are MOSFET；
Described switch Kn, switch Sn are mutual exclusions；Described switch C2n, switch C2n+1 are linkages.
2. the control part as described in system as based on set of cells via Self-reconfiguration in claim 1 one kind includes controller, touch screen；
Described temperature sensor is placed on the surface often saving cell in described cell array；
Described controller detects the surface temperature often saving cell in described cell array by temperature sensor；
Described voltage sensor is connected with the battery units in parallel in described cell array；
Described controller is by often saving the terminal voltage of cell in cell array described in voltage sensor senses；
Described current sensor is connected in series with the positive pole of the outfan of cell array；
Described controller detects the electric current of described cell array by current sensor；
Described touch screen is connected with described controller；
Described controller is also by the output end voltage of voltage sensor senses output importation.
3. the output importation as described in system as based on set of cells via Self-reconfiguration in claim 1 one kind includes the DC-DC module 2 of wide-voltage range, reversing switch；
The most extremely Vin of the input of described output importation (+), negative pole be Vin (-), the most extremely Vout of outfan (+), negative pole be Vout (-)；
The most extremely Vi of the input of the DC-DC module 2 of described wide-voltage range (+), negative pole be Vi (-)；
The most extremely Vo of the outfan of the DC-DC module 2 of described wide-voltage range (+), negative pole be Vo (-)；
The Vin of described output importation (+) be connected by the positive pole of described current sensor with described cell array；
The Vin of described output importation (-) be connected with the negative pole of described cell array；
Described reversing switch includes JM_i, JM_i ' (i=1,2,3,4)；
One end of described switch JM_4 and Vin (+) be connected, the other end and Vi (+) be connected；
One end of described switch JM_2 and Vout (+) be connected, the other end and Vi (+) be connected；
One end of described switch JM_3 and Vin (+) be connected, the other end and Vo (+) be connected；
Described switch JM_1 one end and Vout (+) be connected, the other end and Vo (+) be connected；
One end of described switch JM_4 ' and Vin (-) be connected, the other end and Vi (-) be connected；
One end of described switch JM_3 ' and Vout (-) be connected, the other end and Vi (-) be connected；
One end of described switch JM_2 ' and Vin (-) be connected, the other end and Vo (-) be connected；
Described switch JM_1 ' one end and Vout (-) be connected, the other end and Vo (-) be connected；
Described switch JM_i, JM_i ' (i=1,2,3,4) is MOSFET；Described switch JM_i, JM_i ' is gang switch.
4. an intelligent control method based on set of cells via Self-reconfiguration, it is characterised in that:
Set of cells is divided into " main road set of cells set ", " temporarily excision set of cells set ", " fail battery group set "；Wherein, " main road set of cells set "---the set of cells of normal work in-cell array；" temporarily excision set of cells set "---the set of cells that-cell array is temporarily excised, is cut time suitable in " main road set of cells set " again；" fail battery group set "---the set of cells of permanent excision in-cell array, the personnel that need repairing change timely.In the charge and discharge process of set of cells, there are four subprocess: the process, the process being cut into " fail battery group set " from " main road set of cells set " that are cut into " temporarily excision set of cells set " from " main road set of cells set ", be cut into the process of " main road set of cells set ", " balanced mode " process from " temporarily excision set of cells set "；
Its step is as follows:
Step 1: it is first determined whether meet the condition being resected to " temporarily excision set of cells set " from " main road set of cells set ", if it is satisfied, be resected to cell from " main road set of cells set " in " temporarily excision set of cells set "；
Step 2: judge whether to meet the condition being resected to " fail battery group set " from " main road set of cells set ", if it is satisfied, be resected in " fail battery group set " from " main road set of cells set " by cell；
Step 3: judge whether to meet from " temporarily excision set of cells set " incision " main road set of cells set " condition, if it is satisfied, be all cut in " main road set of cells set " by all batteries in " temporarily excision set of cells set "；
Step 4: judge whether to meet " balanced mode " condition, if meeting condition, the battery in " main road set of cells set " enters " balanced mode " process；
Step 5: in whole discharge process, said process constantly repeat step 1,2,3,4,5, until electric discharge terminate.
5. the condition of the process being cut into " temporarily excision set of cells set " from " main road set of cells set " as described in intelligent control method as based on set of cells via Self-reconfiguration in right 4 one kinds, as a example by electric discharge: previously according to the flash-over characteristic of cell, a voltage decreasing rate threshold values V is setThreshold values；According to the terminal voltage of certain time interval T detection cell, then according to the voltage decreasing rate of the following formula each cell of calculating:Work as Vn_down＞ VThreshold valuesTime, this joint cell is resected in " temporarily excision set of cells set " from " main road set of cells set ".
6. the condition of the process being cut into " fail battery group set " from " main road set of cells set " as described in intelligent control method as based on set of cells via Self-reconfiguration in right 4 one kinds, as a example by electric discharge: when the total voltage in " main road set of cells set " requires less than the minimum voltage of DC module, all batteries in " temporarily excision set of cells set " are cut in " main road set of cells set ".
7. the condition of the process of " main road set of cells set " that is cut into from " temporarily excision set of cells set " as described in intelligent control method as based on set of cells via Self-reconfiguration in right 4 one kinds, as a example by electric discharge: when the total voltage in " main road set of cells set " requires less than the minimum voltage of DC module, all batteries in " temporarily excision set of cells set " are cut in " main road set of cells set ".
8. " balanced mode " process as described in intelligent control method as based on set of cells via Self-reconfiguration in right 4 one kinds, as a example by electric discharge: a kind of mode uses the battery by terminal voltage in " main road set of cells set " is high to power to the battery that terminal voltage is low, in the process, the terminal voltage of every batteries in dynamic monitoring " main road set of cells set ", then according to terminal voltage is by low high serial number, make the highest number to minimum number power supply, second highest number the rest may be inferred to secondary low power supply etc.；Another way uses is powered to the battery that terminal voltage is low by outside (can be " main road set of cells set " output voltage through DC module), in the process, the terminal voltage of every batteries in dynamic monitoring " main road set of cells set ", then calculate its meansigma methods, sub-average battery is powered.
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| CN107221718A (en) * | 2017-05-17 | 2017-09-29 | 西安交通大学 | The equalizing circuit structure and control method of a kind of restructural |
| CN108092359A (en) * | 2017-12-25 | 2018-05-29 | 中国科学院宁波材料技术与工程研究所 | Metal-air battery and its voltage control system, voltage control method |
| CN108565914A (en) * | 2018-04-20 | 2018-09-21 | 刘铭新 | Battery cyclic charge-discharge system and method |
| CN109713744A (en) * | 2018-12-13 | 2019-05-03 | 南京航空航天大学 | A kind of serial lithium battery group equilibrium fault tolerable circuit structure and balanced fault-tolerance approach |
| CN110293876A (en) * | 2019-06-05 | 2019-10-01 | 东北电力大学 | A kind of fail battery of battery pack/battery modules are cut off online/substitutes circuit |
| CN118412977A (en) * | 2024-07-03 | 2024-07-30 | 云储新能源科技有限公司 | Bus voltage modulation method for series dynamic reconfiguration battery system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107221718A (en) * | 2017-05-17 | 2017-09-29 | 西安交通大学 | The equalizing circuit structure and control method of a kind of restructural |
| CN108092359A (en) * | 2017-12-25 | 2018-05-29 | 中国科学院宁波材料技术与工程研究所 | Metal-air battery and its voltage control system, voltage control method |
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| CN108565914B (en) * | 2018-04-20 | 2020-11-03 | 刘铭新 | Battery pack cyclic charge and discharge system and method |
| CN109713744A (en) * | 2018-12-13 | 2019-05-03 | 南京航空航天大学 | A kind of serial lithium battery group equilibrium fault tolerable circuit structure and balanced fault-tolerance approach |
| CN110293876A (en) * | 2019-06-05 | 2019-10-01 | 东北电力大学 | A kind of fail battery of battery pack/battery modules are cut off online/substitutes circuit |
| CN110293876B (en) * | 2019-06-05 | 2022-10-18 | 东北电力大学 | On-line cutting-off/replacing circuit for fault battery/battery module of battery pack |
| CN118412977A (en) * | 2024-07-03 | 2024-07-30 | 云储新能源科技有限公司 | Bus voltage modulation method for series dynamic reconfiguration battery system |
| CN118412977B (en) * | 2024-07-03 | 2024-09-03 | 云储新能源科技有限公司 | Bus voltage modulation method for series dynamic reconfiguration battery system |
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