CN104167775B - A kind of battery set charge/discharge balance method - Google Patents
A kind of battery set charge/discharge balance method Download PDFInfo
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Abstract
A kind of battery set charge/discharge balance method, step is as follows: one: confirm that computing unit is in " replacement battery " pattern；Two: detector unit is at tiMoment obtains the output voltage of each battery cell and exports；Three: evaluation unit, with reference to the information of voltage of step 2 input, obtains electricity estimated value Q of each battery celliAnd export；Four: the Q that predicting unit inputs by step 3i, analyze electric quantity change and obtain ti+1Moment power quantity predicting valueFive: system stores Qi；Six: predicting unit is by ti+1The power quantity predicting value in momentAnd averageOutput；Seven: find low (high) Electronic power batteries monomer, if finding target, enter step 10；Otherwise record object battery cell s, enters step 8；Eight: the electricity estimated value of remaining non-supplying cell monomer in computing unit search power-supply system, find out the battery cell r of replacement, r Yu s and the replacement information of the two are exported；Nine: control unit reads the replacement information of r Yu s, complete it and replace；Ten: by tiT is arrived through time Δ ti+1After, with ti+1Moment is that starting point repeats above step.
Description
Technical field
The present invention provides a kind of battery set charge/discharge balance method, and relating to one can carry out dynamic replacement to battery in battery pack monomer, it is achieved the circuit of each battery cell balance discharge and recharge, belongs to battery-powered electricity system technical field.
Background technology
Now, it is widely used in productive life with battery-powered electricity system.Supplying cell group is usually the combination of multiple battery cell.For the balance of battery discharge each in being achieved at low cost set of cells group, corresponding power system technologies urgently improves.
Generally, being combined into multiple battery cells of set of cells, owing to being affected by battery manufacturing process and other production difference, in set of cells, charge/discharge rates has difference, thus causes set of cells short-board effect occur, makes the Acceptable life of set of cells reduce.Discharge and recharge balanced measure can be used in engineering to solve this problem, but traditional discharge and recharge balance method there is also electric energy loss while discharge and recharge, as by conductive discharge, or charged by the battery cell giving electric discharge too fast, system effectiveness all can be made to decrease.The offer of multiple power supplies output the most typically need to realize plurality of voltages output by extra voltage conversion device, this not only adds equipment cost, also reduces system effectiveness and reliability, makes maintenance and the unified management relative difficulty of system.
Summary of the invention
(1) goal of the invention: the present invention is directed to the problem that set of cells exists in actual applications, propose a kind of battery set charge/discharge balance method, by the combining form of battery cell in system is innovated, it is possible to resolve the power supply equilibrium problem of each battery cell in electricity system.
The method also supports the multiple-channel output of power supply, it is to avoid uses voltage conversion facility, is conducive to optimizing whole electricity system.
(2) technical scheme thinking
In power-supply system configures n battery cell and realizes battery set charge/discharge balance system by battery replacement, battery cell number n meets:First can not yet connect in system and the battery of power supply be chosen electricity difference less than a certain threshold valueA Battery pack monomer, be system power supply after combination.By interval of delta t sometime the electric quantity data of supplying cell monomer measured and update, when the charge value of certain battery cell accessed in this Circuits System and the difference of the average electricity value of battery in battery pack are more than another threshold value Qm2Time, then from the battery cell being not connected with power supply, choose the battery meeting condition battery condition, control its correspondence in switch matrix and switch on-off, replace original low (high) Electronic power batteries, thus ensure the confession electric equilibrium of system battery group.When in system the electricity of certain battery cell too high and time another battery cell electricity is too low, it is possible to both of which is replaced, then connects into charge-discharge circuit, make the state of charge of each battery cell all tend to balance.
Control the break-make of respective switch in switch matrix, multiple power supplies output can be obtained easily.
(2) technical scheme flow process
Present invention generally provides the implementation method method of battery set charge/discharge balance, described battery set charge/discharge balance method for electrically, its basic function module includes cell voltage detection unit 100 (being called for short ' detector unit '), battery electric quantity evaluation unit 200 (being called for short ' evaluation unit '), Capacity Predication of Battery unit 300 (being called for short ' predicting unit '), battery combination computing unit 400 (being called for short ' computing unit '), switch matrix control unit 500 (being called for short ' control unit ').Additionally include one perform module: switch matrix.Cell voltage detection unit 100 is for gathering the output voltage that each battery cell connecting power supply is current.Battery electric quantity evaluation unit 200 is for estimating the current electric quantity of each battery cell connecting power supply.Capacity Predication of Battery unit 300 is for assessing and predict the situation of each battery power consumption connecting power supply in supplying cell group.Battery combination computing unit 400, for determining the compound mode of battery cell, has " replacement battery " and " integrated drive generator " two kinds of mode of operations." replacement battery " pattern is used for realizing battery set charge/discharge balance, and this mode battery combination calculation unit 400 determines low (high) Electronic power batteries needing to be replaced in supplying cell group and is used as the battery replaced；" integrated drive generator " pattern is for realizing the multiple-channel output of power supply, and this mode battery combination calculation unit 400 identifies the voltage requirements information that user inputs, and is not connected with the charge condition of the battery cell of power supply, determines the compound mode of multiple set of cells in reference system.Switch matrix control unit 500, by the requirement of battery combination, controls the break-make of respective switch in switch matrix, thus obtains the output of corresponding power supply, and this module can also identify the power source combination information that user is manually entered, and generates dependent instruction.Switch matrix, for performing the instruction of switch matrix control unit 500, has mainly been switched on-off by a series of.
The present invention provides a kind of battery set charge/discharge balance method, and it realizes specifically comprising the following steps that of battery equilibrium discharge and recharge in set of cells
Step one: confirm that battery combination computing unit 400 is under " replacement battery " pattern；
Step 2: cell voltage detection unit 100 puts t sometimei(this supplying cell number of monomers is m, and the m < output voltage of battery cell total number n) in power-supply system, and is input to battery electric quantity evaluation unit 200 to obtain each supplying cell monomer in set of cells；
Step 3: battery electric quantity evaluation unit (200) receives the information of voltage of input, and combines the battery performance self stored, and estimates the electricity of battery cell each in supplying cell group, and by its current electric quantity estimated valueIt is input to Capacity Predication of Battery unit (300)；
Step 4: Capacity Predication of Battery unit 300 utilizes the electricity estimated value that battery electric quantity evaluation unit 200 inputs, and obtains current circuit total current, and a upper moment t in system storage by current sensori-1The electricity relevant information of each battery cell in supplying cell group, assesses the electric quantity change trend of these battery cells, it was predicted that each battery cell subsequent time t in supplying cell groupi+1Power quantity predicting value
Step 5: system storage updates electricity estimated value Q of each battery cell (being currently to connect power supply) in supplying cell groupi, with tiThe electricity estimated value in moment is as up-to-date storage data；
Step 6: Capacity Predication of Battery unit 300 by battery each in supplying cell group at ti+1The power quantity predicting value in momentAnd meansigma methodsIt is input to battery combination computing unit 400；
Step 7: the power quantity predicting value of battery combination computing unit 400 comparative analysis inputAnd meansigma methodsFinding low (high) Electronic power batteries monomer, if finding target, entering step 10；Otherwise record object battery cell s, enters step 8；
Step 8: battery combination computing unit 400 reference input information, the electricity estimated value of remaining non-supplying cell monomer (number is n-m) in search power-supply system, find out the battery cell r being used as to replace, battery flag and the replacement information of the two of r Yu s are exported switch matrix control unit 500；
Step 9: switch matrix control unit 500 reads the information of r Yu s battery replacement from input signal, and navigates to respective switch in switch matrix according to associated batteries label, changes the on off operating mode of respective switch, completes the replacement of battery cell；The battery that participation is replaced status identifier in the system memory changes simultaneously, and this status identifier is for identifying whether battery is linked in circuit；
Step 10: from time point tiElapsed time course Δ t arrives ti+1After, with time ti+1Above step is repeated for starting point.
The flow chart of the method for the invention is as shown in Figure 1.
Wherein, in " the confirming that battery combination computing unit 400 is under ' replacement battery ' pattern " described in step one, " replacement battery " pattern the duty that power-supply system is given tacit consent to should be referred to.
Wherein, " the time point t of indication in step 2i" and future time point ti+1Between time interval Δ t can be preset by user.
Wherein, described in step 2 " cell voltage detection unit 100 puts t sometimei(this supplying cell number of monomers is m to obtain each supplying cell monomer in set of cells, and the m < output voltage of battery cell total number n) in power-supply system, and it is input to battery electric quantity evaluation unit 200 ", its method obtained is by realizing at the voltage sensor of each battery cell two ends configuration connecting power supply.
Wherein, step 2, in three, four, five, six, seven operation to as if connect the battery cell of power supply, the battery cell being not connected with power supply is ignored these steps；The each battery cell being not connected with power supply and connection power supply has specific diacritics when storage.
Wherein, " system storage " related in step 4, rightIndividual battery cell all has distribution data space.
Wherein, described in step 5 " system storage updates electricity estimated value Q of each battery cell (being currently to connect power supply) in supplying cell groupi, with tiThe electricity estimated value in moment is as up-to-date storage data ", the principle of this system storage more new data is: to connecting the battery cell powered, and reading is to update the front the last data measured；To being currently not connected with the battery of power supply, reading the last time of information when connecting, if powering from being not connected with, store is initial information.
Wherein, " the power quantity predicting value of battery combination computing unit 400 comparative analysis input described in step 7And meansigma methodsFind low (high) Electronic power batteries monomer ", determine in the following manner: the power quantity predicting value of the battery cell j of power supply will be connectedAverage electricity predictive value with place battery cellRelatively, when the two difference is more than a certain threshold valueTime, determine that j is low (high) Electronic power batteries.
Wherein, " battery combination computing unit 400 reference input information; the electricity estimated value of remaining non-supplying cell monomer (number is n-m) in search power-supply system " described in step 8, it is somebody's turn to do " the electricity estimated value of remaining non-supplying cell monomer (number is n-m) in power-supply system ", it is that respective battery monomer updates when accessing last time, reads from system storage.
Wherein, " " the battery combination computing unit 400 reference input information described in step 8 described in step 8, the electricity estimated value of remaining non-supplying cell monomer (number is n-m) in search power-supply system, find out the battery cell r being used as to replace ", " the battery cell r being used as to replace should be found out " and realize in the following manner: from the battery cell being not connected with power supply, choose electricity estimated value qkMeet condition battery condition(wherein Qm3＜ Qm2) battery cell k, i.e. determine employing battery cell k replace j access circuit.
Wherein, described in step 9 " switch matrix control unit 500 reads the information of r Yu s battery replacement from input signal; and navigate to respective switch in switch matrix according to associated batteries label; and change the on off operating mode of respective switch; complete the replacement of battery cell ", " switch matrix " should refer to that the junction point by each battery two ends was arranged into the form of matrix, the node in matrix correspond to switch accordingly；
Should " switch matrix " be controlled by " switch matrix control unit 500 ", the state of battery cell two ends respective switch changes, then the mark of this battery cell connection power supply changes the most therewith；
The voltage pulsation caused by opening and closing process being somebody's turn to do " switch matrix " breaker in middle is the least, does not affect the seriality for system power supply.
(3) advantage and effect
The present invention is a kind of battery set charge/discharge balance method, it is provided that the scheme of battery-powered balance, is effectively increased the utilization rate of battery.Its switch matrix both can promptly position the junction point of each battery cell, carries out access and picks out conversion, supports that multiple battery cell is replaced simultaneously；The switch mode of fast and flexible will not cause the normal O&M of voltage pulsation big in power supply circuits, beneficially electrical equipment.
The present invention a kind of battery set charge/discharge balance method has the function of the power management optimizing electricity system simultaneously.The time interval that user can be updated by demand self-defining data；To not accessing the battery of circuit, not information measurement and renewal frequently, only there is battery replacement, battery access state is being adjusted；Can decrease the workload of monitoring while ensureing system worked well, the power supply to multiple batteries distributes significant with management.
The most promising system of the present invention provides the ability of multiple-channel output: after manually battery combination computing unit 400 being switched to " integrated drive generator " pattern, can be not against transformation facility, it is provided that various power supplys export, and reduces circuit loss.
Accompanying drawing explanation
Fig. 1 is battery set charge/discharge balance method schematic flow sheet of the present invention；
Fig. 2 be battery information obtain and low Electronic power batteries replace realize process, explain working battery information in set of cells charge and discharge balance and electricity consumption distribution method detecting system, replace low Electronic power batteries process；
Fig. 3 is that in system, battery combination is by 1, and 2,4,6,7,9,10 become 3, the process of 2,4,6,7,9,10, explain battery set charge/discharge balance and electricity consumption distribution method replacement circuit in (low electricity or high electricity) battery realize process；
Fig. 4 is that system chooses 1 according to charge condition, 2,4,6,7,9,10 totally 7 batteries composition outputs, explains battery set charge/discharge balance and electricity consumption distribution method independent assortment battery cell, it is achieved the process of given power supply output；
Fig. 5 is that in system, set of cells 3,2,4,6,7,9,10 constitutes output 1, and battery 5 constitutes output 2, the situation of extension multiple-channel output, explains battery set charge/discharge balance and electricity consumption distribution method in the case of not using transformation facility, it is achieved the process of multiple-channel output；
Sequence number in accompanying drawing, code name, symbol description are as follows:
In Fig. 2～5, each numerical value represents the numbering of respective battery monomer, it is assumed that when each battery cell normally works, output voltage is 4V；
Relating to switch matrix in accompanying drawing 1～5, when there being n battery in system, each battery cell both positive and negative polarity is respectively arranged with an output node, and the node of each battery arbitrarily can be connected with other batteries by switch corresponding in switch matrix.In accompanying drawing 2～5:
A. i-th battery i (2i-1,2i) cathode node is numbered 2i-1, negative pole is 2i, the positive pole of i-th battery and the negative pole of jth battery are contacted (switch matrix switchs Guan Bi accordingly) be designated as i × j (2i-1,2j)=1, not in contact with being then designated as i × j (2i-1,2j)=0.
B. note positive source outfan is connected with the positive pole of i-th battery is 0 × i (2i-1)=1；Power cathode outfan is connected to the negative pole of i-th battery: 0 × i (2i)=1.
The most in the accompanying drawings switch matrix marks with pore during corresponding switch Guan Bi, at unused black dots mark node be all defaulted as switch off.
D. anode connection reads from X direction, and the connection of negative pole reads from y direction.
Detailed description of the invention
Below in conjunction with accompanying drawing and instantiation, the present invention being described, illustrative example here is only used for the clearer explanation present invention, and not as the application restriction to the present invention.
Enumerate 1: Fig. 3 explain battery set charge/discharge balance and electricity consumption distribution method replacement circuit in (low electricity or high electricity) battery realize process.Assuming that No. 1 battery electric quantity (high) on the low side, then replacing battery, to realize equilibrium step as described below.
One battery set charge/discharge balance method of the present invention, as shown in Fig. 1～5, it specifically comprises the following steps that
Step 1.1: battery combination computing unit 400 is under " replacement battery " pattern.
Step 1.2: cell voltage detection unit 100 is at certain time point t1, the output voltage U=[u at 1,2,4,6,7,9, No. 10 battery two ends is obtained by voltage sensor1 ... u7]T, it is input to battery electric quantity evaluation unit 200.
Step 1.3: battery electric quantity evaluation unit 200 receives the information of voltage of input, and combines the battery performance self stored, and to 1, the electricity of 2,4,6,7,9, No. 10 batteries is estimated, and by current electric quantity estimated valueOutput is to Capacity Predication of Battery unit 300.
Step 1.4: Capacity Predication of Battery unit 300 utilizes Q1, and obtain current circuit total current, and a upper moment (t of system storage by current sensor0) electricity relevant information Q of No. 1,2,4,6,7,9,10 batteries0, the electric quantity change trend of 1,2,4,6,7,9, No. 10 batteries of assessment, obtain 1,2,4,6,7,9, No. 10 battery subsequent time t2Power quantity predicting value
Step 1.5: system storage updates electricity estimated value Q of No. 1,2,4,6,7,9,10 batteries0→Q1。
Step 1.6: Capacity Predication of Battery unit 300 by No. 1,2,4,6,7,9,10 batteries at t2The power quantity predicting value in momentAnd meansigma methodsOutput is to battery combination computing unit 400.
Step 1.7: the power quantity predicting value of battery combination computing unit 400 comparative analysis input and meansigma methods thereofFind the power quantity predicting value (high) on the low side of No. 1 battery；
The meansigma methods of the power quantity predicting value of step 1.8 reference inputSearch for the electricity estimated value of remaining (not accessing circuit) batteryAnd carry out comparative analysis, (electricity estimated value is q to choose No. 3 batteries from remaining 3,5, No. 8 battery3) replace No. 1 battery, by label 1 and 3 and the two replacement information be input to switch matrix control unit 500.
Step 1.9: switch matrix control unit 500 reads the information of battery replacement from input signal, makees following control: disconnect the switch (0 × 1 (1,0)=0,2 × 1 (3,2)=0) at No. 1 battery two ends to switch matrix；Close the switch (0 × 3 (5 of No. 3 anodes and set of cells outfan, 0)=1), and No. 3 battery cathode and the switch (2 × 3 (3,6)=1) of No. 2 anodes, complete the quick replacement in set of cells No. 1 battery；No. 1 and No. 3 battery cell access state in the system memory mark changes.
Step 1.10: from time point t1Elapsed time course Δ t arrives t2After, system enters next round monitoring.
The present invention is a kind of battery set charge/discharge balance method, additionally it is possible to realize following functions simultaneously:
1) independent assortment battery unit, meets the process that given output requires.This function is explained below in conjunction with enumerating 2 and Fig. 2.
Enumerate 2: Fig. 4 and combine instance interpretation battery set charge/discharge balance and with electrical distribution independent assortment battery unit, meet the process that given output requires.Assuming that 1,2,4,6,7,9, No. 10 battery cell tandem compound is that system is calculated according to charge condition, then the step realizing the output of 28V power supply is as follows:.
Battery combination computing unit 400 is switched to " integrated drive generator " pattern by user；
And input needs electricity consumption to be pressed onto battery combination computing unit 400；
Battery combination computing unit 400, by the battery being not connected with power supply is carried out electricity assessment, determines that the battery cell that need to access electricity system is 1,2,4,6,7,9,10；
The state (battery connects preceding switch and all disconnects) of corresponding switch in switch matrix is controlled by switch matrix control unit 500.nullFig. 4 shows the situation of connection: the 1st anode corresponds to the positive pole (0 × 1 (1 of set of cells output,0)=1)，The negative pole node of the 2nd anode node and the 1st battery connected (2 × 1 (3,2)=1)、The negative pole node of the 2nd anode node and the 1st battery connected (2 × 1 (3,2)=1)、The negative pole node of the 4th anode node and the 2nd battery connected (4 × 2 (7,4)=1)、The negative pole node of the 6th anode node and the 4th battery connected (6 × 4 (11,8)=1)、The negative pole node of the 7th anode node and the 6th battery connected (7 × 6 (13,12)=1)、The negative pole node of the 9th anode node and the 7th battery connected (9 × 7 (17,14)=1)、The negative pole node of the 10th anode node and the 9th battery connected (10 × 9 (19,18)=1)、10th battery cathode connects power supply output (0 × 10 (0,20)=1).The most only need to control switch matrix is appealed the switch at node by being disconnected to Guan Bi, required output can be obtained；
In system storage, the connection power supply state of No. 1,2,4,6,7,9,10 batteries connects from being not connected with becoming；Battery combination computing unit 400 automatic jumps to " replacement battery " pattern.
2) present invention has multiple output function, according to subsystem requirements, and direct assembled battery monomer, it is provided that power supply exports.This function is explained below in conjunction with enumerating 3 and Fig. 5.
Enumerate 3: Fig. 4 and show that device can become the power supply output 1 of 24v by battery 2,4,6,7,9,10 tandem compound, the most directly obtain power supply output 2 from No. 5 batteries.Output 1 and 2 can be respectively used in electricity system have two electronic circuits of different voltage requirements, and the process that the present invention realizes multiple power sources output function is as follows:
Battery combination computing unit 400 is switched to " integrated drive generator " pattern by user.
User inputs two and need to separate with space between two numerical value with voltage value to battery combination computing unit 400.
Battery combination computing unit 400 reads the voltage requirements of 24V and 4V with one-dimension array form；And determine need to be respectively 6 and 1 with battery number of monomers by calculating, and with reference to the information about power of (not accessing in circuit) battery cell, determine battery 2,4,6,7,9,10 tandem compounds become the power supply of 24v to export 1, No. 5 cell powers outputs 2, and the information of integrated drive generator is exported switch matrix control unit 500.
Switch matrix control unit 500 identifies " integrated drive generator " signal, navigates to the relevant position in switch matrix, controls corresponding on off state and changes into Guan Bi, and i.e. obtaining need to be with output 1 and 2.
Associated batteries monomer access state in the system memory mark changes, and battery combination computing unit 400 automatically switches to " replacement battery " pattern.
Wherein: for 4V voltage requirements need to number of battery cells be 1, the information about power of system reference (not accessing in circuit) battery cell, detect that No. 5 battery electric quantities are higher, for making system battery monomer electricity tend to balance, choose No. 5 batteries and outputs 2 are provided.
May be used without same method to obtain when system has other power supply requirements.
3) a kind of battery set charge/discharge balance method is in the case of without transformation facility, it is also possible to support that combining forms different between battery cell is as in parallel or series, it is achieved multiple voltages export.
Claims (10)
1. a battery set charge/discharge balance method, it is characterised in that: it specifically comprises the following steps that
Step one: confirm that battery combination computing unit (400) is under " replacement battery " pattern；
Step 2: cell voltage detection unit (100) puts t sometimei, obtain the output of each supplying cell monomer in set of cells
Voltage, and it is input to battery electric quantity evaluation unit (200)；This supplying cell number of monomers is m, and m < power supply system
Battery cell total number n in system；
Step 3: battery electric quantity evaluation unit (200) receives the information of voltage of input, and combines the battery performance self stored,
The electricity of battery cell each in supplying cell group is estimated, and by its current electric quantity estimated valueIt is input to Capacity Predication of Battery unit (300)；
Step 4: Capacity Predication of Battery unit (300) utilizes the electricity estimated value that battery electric quantity evaluation unit (200) inputs, and borrows
Current sensor is helped to obtain current circuit total current, and a upper moment t in system storagei-1In supplying cell group
The electricity relevant information of each battery cell, assesses the electric quantity change trend of these battery cells, it was predicted that supplying cell group
In each battery cell subsequent time ti+1Power quantity predicting value
Step 5: system storage updates electricity estimated value Q of each battery cell in supplying cell groupi, with tiThe electricity estimated value in moment
As up-to-date storage data；
Step 6: Capacity Predication of Battery unit (300) by battery each in supplying cell group at ti+1The power quantity predicting value in momentAnd
Its meansigma methodsIt is input to battery combination computing unit (400)；
Step 7: the power quantity predicting value of battery combination computing unit (400) comparative analysis inputAnd meansigma methodsFind
Low or high Electronic power batteries monomer, if the target of discovery, enters step 10；Otherwise record object battery cell s, enters
Enter step 8；
Step 8: battery combination computing unit (400) reference input information, search power-supply system in remaining non-supplying cell monomer,
Its number is the electricity estimated value of n-m, find out be used as replace battery cell r, by the battery flag of r Yu s with
And the replacement information of the two exports switch matrix control unit (500)；
Step 9: switch matrix control unit (500) reads the information of r Yu s battery replacement from input signal, and according to relevant
Battery label navigates to respective switch in switch matrix, changes the on off operating mode of respective switch, completes battery cell
Replace；The battery that participation is replaced status identifier in the system memory changes simultaneously；This status identifier
It is for identifying whether battery is linked in circuit；
Step 10: from time point tiElapsed time course Δ t arrives ti+1After, with time ti+1Above step is repeated for starting point；Upper
State step 2, in three, four, five, six, seven operation to as if connect the battery cell of power supply, to being not connected with supplying
The battery cell of electricity ignores these steps；The each battery cell being not connected with power supply and connection power supply has specific when storage
Diacritics.
A kind of battery set charge/discharge balance method the most according to claim 1, it is characterised in that: described in step one " really
Recognize battery combination computing unit (400) under ' replacement battery ' pattern ", " replacement battery " pattern should refer to power supply system
The duty of system acquiescence.
A kind of battery set charge/discharge balance method the most according to claim 1, it is characterised in that: in step 2 indication " time
Between put ti" and future time point ti+1Between time interval Δ t preset by user.
A kind of battery set charge/discharge balance method the most according to claim 1, it is characterised in that: " the electricity described in step 2
Cell voltage detector unit (100) puts t sometimei, obtain the output voltage of each supplying cell monomer in set of cells,
And it is input to battery electric quantity evaluation unit (200) ", its method obtained is by each battery cell two connecting power supply
The voltage sensor of end configuration realizes.
A kind of battery set charge/discharge balance method the most according to claim 1, it is characterised in that: relate in step 4 " is
System memorizer ", n battery cell is all had distribution data space, wherein
A kind of battery set charge/discharge balance method the most according to claim 1, it is characterised in that: described in step 5 " be
Electricity estimated value Q of each battery cell in system memory updating supplying cell groupi, with tiThe electricity estimated value in moment is as
Newly store data ", the principle of this system storage more new data is: to connecting the battery cell powered, reading is more
The last data measured before new；To being currently not connected with the battery of power supply, read the last time of information when connecting, if never
What connection power supply then stored is initial information.
A kind of battery set charge/discharge balance method the most according to claim 1, it is characterised in that: " the electricity described in step 7
The power quantity predicting value of pond combination calculation unit (400) comparative analysis inputAnd meansigma methodsFind low or
High Electronic power batteries monomer ", determine in the following manner: the power quantity predicting value of the battery cell j of power supply will be connectedWith
The average electricity predictive value of place battery cellRelatively, when the two difference is more than a certain threshold valueTime, determine that j is low or high Electronic power batteries.
A kind of battery set charge/discharge balance method the most according to claim 1, it is characterised in that: " the pond described in step 8
Combination calculation unit (400) reference input information, in search power-supply system, the electricity of remaining non-supplying cell monomer is estimated
Value ", should " electricity estimated value of remaining non-supplying cell monomer in power-supply system ", be that respective battery monomer is when accessing last time
Update, read from system storage.
A kind of battery set charge/discharge balance method the most according to claim 1, it is characterised in that: " the electricity described in step 8
Pond combination calculation unit (400) reference input information, in search power-supply system, the electricity of remaining non-supplying cell monomer is estimated
Evaluation, finds out the battery cell r being used as to replace ", it is real in the following manner for " should finding out the battery cell r being used as to replace "
Existing: from the battery cell being not connected with power supply, choose electricity estimated value qkMeet condition battery condition(wherein Qm3＜ Qm2) battery cell k, i.e. determine employing battery cell k replace j access
Circuit.
A kind of battery set charge/discharge balance method the most according to claim 1, it is characterised in that: " opening described in step 9
Close matrix majorization unit (500) from input signal, read the information of r Yu s battery replacement, and according to associated batteries mark
Number navigate to respective switch in switch matrix, change the on off operating mode of respective switch, complete the replacement of battery cell ", should
" switch matrix " refers to that the junction point by each battery two ends is arranged into the form of matrix, and the node in matrix correspond to accordingly
Switch；" switch matrix " " switch matrix control unit (500) ", battery cell two ends respective switch should be controlled by
State change, then this battery cell connect power supply mark change the most therewith；It is somebody's turn to do " switch matrix " breaker in middle
Voltage pulsation caused by opening and closing process is the least, does not affect the seriality for system power supply.
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