CN1316710C - Accumulator, super capacitor charge-discharge equalizing method and equipment - Google Patents
Accumulator, super capacitor charge-discharge equalizing method and equipment Download PDFInfo
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- CN1316710C CN1316710C CNB031183700A CN03118370A CN1316710C CN 1316710 C CN1316710 C CN 1316710C CN B031183700 A CNB031183700 A CN B031183700A CN 03118370 A CN03118370 A CN 03118370A CN 1316710 C CN1316710 C CN 1316710C
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Abstract
The present invention relates to a method and a device for equalizing charge and discharge of storage batteries and super capacitors. The device is characterized in that a charge and discharge equalizing controller composed of a microcomputer system is electrically connected with a plurality of charge and discharge equalizers respectively connected with both terminals of each single storage battery or both terminals of each super capacitor, and each charge and discharge equalizer is composed of a voltage detector, a temperature detector and an isolated voltage dropping DC/DC. The method of the present invention is characterized in that all the charge and discharge equalizers are controlled by the charge and discharge equalizing controller; when charging the storage batteries or the super capacitors, all the charge and discharge equalizers charge the storage batteries or the super capacitors by different currents corresponding to the capacitance of the storage batteries or the capacitance of the super capacitors, and the charge and discharge equalizer corresponding to a certain storage battery or a certain super capacitor stops charging the storage battery or the super capacitor when the voltage and the temperature of the storage battery or the voltage and the temperature of the super capacitor reach a charge characteristic value of the storage battery or a charge characteristic value of the super capacitor; when discharging the storage batteries or the super capacitors, the charge and discharge equalizers provide an equalizing current so that all the discharging currents maintain the same value when the voltage of a certain storage battery or that of a certain super capacitor is lower than a discharge characteristic value, and the charge and discharge equalizers stop discharging the storage batteries or the super capacitors when the voltage of most of the storage batteries or that of most of the super capacitors reaches the discharge characteristic value. The.
Description
Technical field: the present invention relates to the charging/discharging thereof and the device, particularly storage battery of a kind of storage battery or super capacitor or the charge and discharge balancing method and apparatus of super capacitor.
Background technology: all there are lack of uniformity in the storage battery of tandem working or super capacitor for various reasons when charging and discharge; During charging: storage battery that capacity is little or super capacitor usually can produce and overcharge, and will cause storage battery or super capacitor to damage when serious, and storage battery capacious or super capacitor often can not be full of electric energy; During discharge: the storage battery of electric weight deficiency or super capacitor can enter the discharge lower limit at first, the same discharge lack of uniformity that exists, if continue discharge, this storage battery or super capacitor will produce overdischarge, thereby shorten the useful life of storage battery or super capacitor, reversed polarity be can occur when serious, storage battery or super capacitor thoroughly damaged.
Summary of the invention: the object of the present invention is to provide the charging/discharging thereof and the device of a kind of storage battery or super capacitor, overcome existing storage battery or super capacitor and discharge and recharge the unbalanced above-mentioned disadvantage of bringing.
Technical solution of the present invention is the charge and discharge balancing method and apparatus of a kind of storage battery or super capacitor.The charging and discharging balance device of storage battery or super capacitor is electrically connected by charge and discharge balancing controller and several charge and discharge balancing devices to be formed; The charge and discharge balancing controller is made of microsystem; Each charge and discharge balancing device is made up of voltage detector, Temperature Detector and isolated step-down DC/DC electric energy transducer; The input of each isolated step-down DC/DC electric energy transducer connects with external electric energy input, and be attached on the power bus that is in series by each cell batteries or super capacitor by rectifier diode D, the output of each isolated step-down DC/DC electric energy transducer connects with the output of each self-corresponding cell batteries or super capacitor, the cell batteries that the voltage detector input is corresponding with each or the output of super capacitor connect, the input of Temperature Detector connects with temperature probe, temperature probe is attached to each self-corresponding cell batteries or super capacitor positive terminal place, each voltage detector connects with the charge and discharge balancing controller respectively with the output of Temperature Detector, and the output of charge and discharge balancing controller connects with the signal input end of each isolated step-down DC/DC electric energy transducer respectively.The charge and discharge balancing method of storage battery or super capacitor is: during charging, the charge and discharge balancing controller sends control signal C
W1, C
W2... C
WnGive n charge and discharge balancing device respectively, n is a natural number, and each charge and discharge balancing device is worked simultaneously, and with n different charging current i corresponding to cell batteries that connects separately or super capacitor amount of capacity
C1, i
C2I
CnEach corresponding cell batteries or super capacitor are charged; Meanwhile, voltage detector detects the cell batteries of each corresponding connection or the voltage and the temperature of super capacitor respectively with Temperature Detector, and the result of detection delivers to the charge and discharge balancing controller respectively; When the detection voltage of k cell batteries or super capacitor or temperature reach charging character voltage V
CTOr charging characteristic temperature value T
CTThe time, the charge and discharge balancing controller sends control signal C
WkGive k corresponding charge and discharge balancing device, stop this cell batteries or super capacitor are charged, wherein small letter English alphabet k is in n storage battery or the super capacitor any 1, and the span of k is 1 to n; During discharge, all at the beginning n charge and discharge balancing device cuts out and do not work, the euqalizing current i of each charge and discharge balancing device output
Fj1, i
Fj2... i
FjnAll be null value, and the discharging current i of all each cell batteries or super capacitor
F1, i
F2... i
FnAll equate, equal load current i
L, meanwhile, each voltage detector and Temperature Detector detect the voltage and the temperature of each self-corresponding cell batteries or super capacitor, and testing result is delivered to the charge and discharge balancing controller respectively; When the voltage of k cell batteries or super capacitor drops to discharge characteristic magnitude of voltage V
FTThe time, the charge and discharge balancing controller sends control signal C to the charge and discharge balancing device with k cell batteries or the corresponding connection of super capacitor
Wk, make k cell batteries or the work of super capacitor charge and discharge balancing device, its euqalizing current i
FjkNon-vanishing; The charge and discharge balancing device obtains electric energy through rectifying tube D from the power bus that is in series by each cell batteries or super capacitor, again through the isolated step-down DC/DC electric energy transducer of this charge and discharge balancing device to this storage battery or super capacitor electric energy supplement, the terminal voltage decrease speed of this storage battery or super capacitor is slowed down; When most of storage batterys or super capacitor all reach its discharge characteristic magnitude of voltage V
FTThe time, the charge and discharge balancing controller sends control signal C
WkClose the charge and discharge balancing device that all have been opened, stop discharge and warning; As if k cell batteries or super capacitor brownout or short circuit or open circuit, the charge and discharge balancing controller sends control signal C
WkGive the charge and discharge balancing device, quit work and report to the police; Temperature as if k storage battery or super capacitor is too high, and the charge and discharge balancing controller sends control signal C
WkOpen the cooling fan of storage battery or super capacitor, if this battery temp or super capacitor temperature still do not descend after after a while, the charge and discharge balancing controller sends control signal C
WkGive the charge and discharge balancing device, quit work and report to the police.
Charging character voltage V
CTIt is the magnitude of voltage when characterizing storage battery or super capacitor full charge;
Charging characteristic temperature T
CTIt is the maximum safety temperature value that characterizes in storage battery or the super capacitor charging process;
Discharge characteristic voltage V
FTBe that the maximum that characterizes in storage battery or the super capacitor discharge process is allowed the pairing magnitude of voltage of discharge capacity.
Description of drawings:
Fig. 1 is a n accumulator cell charging and discharging balancer structure principle chart, and wherein n is a natural number, and the implication of following n is all identical;
Fig. 2 is a k charge and discharge balancing device structure principle chart, and wherein small letter English alphabet k is in n storage battery or the super capacitor any 1, and the span of k is 1 to n;
Fig. 3 is a n accumulator cell charging and discharging balancer charge balancing schematic diagram;
Fig. 4 is a n accumulator cell charging and discharging balancer equalization discharge schematic diagram;
Embodiment: the present invention further specifies as follows in conjunction with specific embodiments referring to accompanying drawing:
The present invention is applicable to series connection batteries or super capacitor group is carried out the control of charge and discharge process with balanced.
Present embodiment is that the present invention is used for one group of n storage battery or super capacitor are discharged and recharged.Storage battery or super capacitor charging and discharging balance device are electrically connected by charge and discharge balancing controller and n charge and discharge balancing device to be formed; The charge and discharge balancing controller is made of microsystem.
The structural principle of storage battery or super capacitor charging and discharging balance device is referring to accompanying drawing 1, B among the figure
1, B
2... B
nBe each cell batteries, its subscript represent corresponding cell batteries be 1,2 ... among the n one, therefore, B
1Represent the 1st storage battery, B
2Represent the 2nd storage battery, the rest may be inferred, B
nRepresent n storage battery; "+" number is anodal, and "-" number is negative pole; Capitalization English letter K is a discharge control switch, and it is controlled by the charge and discharge balancing controller; D is a rectifier diode, and its effect is to give each charge and discharge balancing device by the power bus energy back after each cell series connection; b
1And b
1' be the output of charge and discharge balancing device 1, wherein b
1Connect the 1st storage battery B
1Positive pole, b
1' the 1st storage battery B of connection
1Negative pole; a
1And a
1' be the input of charge and discharge balancing device 1, wherein a
1The A that connects external electric energy input, a
1' connect the A ' of external electric energy input; b
2And b
2' be the output of charge and discharge balancing device 2, wherein b
2Connect the 2nd storage battery B
2Positive pole, b
2' the 2nd storage battery B of connection
2Negative pole; a
2And a
2' be the input of charge and discharge balancing device 2, wherein a
2The A that connects external electric energy input, a
2' connect the A ' of external electric energy input; b
n, b
n' be the output of charge and discharge balancing device n, wherein b
nConnect n storage battery B
nPositive pole, b
n' n storage battery B of connection
nNegative pole; a
n, a
n' be the input of charge and discharge balancing device n, wherein a
nThe A that connects external electric energy input, a
n' connect the A ' of external electric energy input; A, A ' are external electric energy inputs, and wherein A is the positive pole "+" of external electric energy input, and A ' is the negative pole "-" of external electric energy input.
Each charge and discharge balancing device is all by the control of charge and discharge balancing controller, and corresponding control signal between the two is respectively by data communication line C
1, C
2... C
nTransmission, wherein: C
1Be the data communication line between charge and discharge balancing controller and first charge and discharge balancing device, C
1The signal of transmission comprises: first battery B
1Terminal voltage signal C
V1, first battery B
1Temperature signal C
T1Work and out-of-work control signal C with first isolated step-down DC/DC electric energy transducer
W1C
2Be the data communication line between charge and discharge balancing controller and second the charge and discharge balancing device, C
2The signal of transmission comprises: the terminal voltage signal C of second battery
V2, second battery temperature signal C
T2Work and out-of-work control signal C with second isolated step-down DC/DC electric energy transducer
W2The rest may be inferred, C
nBe the data communication line between charge and discharge balancing controller and n the charge and discharge balancing device, C
nThe signal of transmission comprises: the terminal voltage signal C of n battery
Vn, a n battery temperature signal C
TnWork and out-of-work control signal C with n isolated step-down DC/DC electric energy transducer
Wn
Each charge and discharge balancing device is made up of voltage detector, Temperature Detector and isolated step-down DC/DC electric energy transducer, referring to accompanying drawing 2, and B among the figure
kBe k cell, T
kBe the temperature sensor of k battery, f
kBe the temperature sensor T of k battery
kTie point with its Temperature Detector; b
k, b '
kBe the output of k charge and discharge balancing device, b wherein
kConnect k storage battery B
kPositive pole, b '
kConnect k storage battery B
kNegative pole; a
k, a '
kBe the input of k charge and discharge balancing device, a wherein
kThe A that connects external electric energy input, a '
kThe A ' that connects external electric energy input; C
VkBe k battery terminal voltage signal of the voltage detector output of k battery, C
TkBe the temperature signal of k battery of k battery temperature detector output, C
WkBe the work and the control signal that quits work of k isolated step-down DC/DC electric energy transducer; C
kBe the data communication line between charge and discharge balancing controller and k the charge and discharge balancing device, it provides path for data-signal, and this data-signal comprises: the terminal voltage signal C of k battery
Vk, a k battery temperature signal C
TkWork and out-of-work control signal C with k isolated step-down DC/DC electric energy transducer
WkThe input a of isolated step-down DC/DC electric energy transducer
k, a '
kBe connected to external electric energy input A, A ', wherein a
iThe A that connects external electric energy input, a '
kThe A ' that connects external electric energy input; Output b
k, b '
kIn parallel with the voltage detector input, be connected to cell batteries or super capacitor two ends, wherein b
kConnect k storage battery B
kPositive pole, b '
kConnect k storage battery B
kNegative pole; Temperature Detector input f
kWith temperature probe T
kConnect, temperature probe is attached to cell batteries or super capacitor positive terminal place; Voltage detector output signal C
VkOutput signal C with Temperature Detector
TkBy data communication line C
kTransfer to the charge and discharge balancing controller respectively; The working control signal C of charge and discharge balancing controller output
WkBy data communication line C
kBe sent to each isolated step-down DC/DC electric energy transducer respectively; Each storage battery or super capacitor charge and discharge balancing device in parallel makes each storage battery or super capacitor can both realize equilibrium when charging and discharge.Detect and monitoring by voltage, the temperature scanning of charge and discharge balancing device during system works all storage batterys or super capacitor, and give the charge and discharge balancing controller with measured voltage, temperature signal, after the charge and discharge balancing controller carries out computing to measured data, according to the work of a certain each charge and discharge balancing device of rule control, realize the charge and discharge balancing of storage battery or super capacitor.Can open or close the corresponding equalizer that charges and discharge when superpressure or under-voltage or overtemperature appear in some cell batteries or super capacitor makes it reach balanced; to prevent that storage battery or super capacitor from use overcharging or discharging; thereby protect storage battery or super capacitor effectively; prolong the useful life of storage battery or super capacitor, and can make full use of each storage battery or super capacitor B
1, B
2... B
nThe electric weight of storing.
Charge equalization method and process: referring to accompanying drawing 3, n charge and discharge balancing device is respectively to n cell B among the figure
1, B
2... B
nCharging, wherein: B
1Be the 1st battery, B
2Be the 2nd battery, the rest may be inferred, B
nBe n battery; Its charging current corresponds to i
C1, i
C2... i
Cn, wherein: i
C1Be the charging current of the 1st battery, i
C2Be the charging current of the 2nd battery, the rest may be inferred, i
CnBe the charging current of n battery, i
cBe total charging current, it provides electric energy by external electric energy input A, A '; Each charge and discharge balancing device is all by the control of charge and discharge balancing controller, and corresponding control signal between the two is respectively by data communication line C
1, C
2... C
nSwitching signal, wherein: C
1Be the data communication line between charge and discharge balancing controller and first charge and discharge balancing device, it provides path for data-signal, and this data-signal comprises: the terminal voltage signal C of first battery
V1, first battery temperature signal C
T1Work and out-of-work control signal C with first isolated step-down DC/DC electric energy transducer
W1C
2Be the data communication line between charge and discharge balancing controller and second the charge and discharge balancing device, it provides path for data-signal, and this data-signal comprises: the terminal voltage signal C of second battery
V2, second battery temperature signal C
T2Work and out-of-work control signal C with second isolated step-down DC/DC electric energy transducer
W2The rest may be inferred, C
nBe the data communication line between charge and discharge balancing controller and n the charge and discharge balancing device, it provides path for the data communication signal, and this data-signal comprises: the terminal voltage signal C of n battery
Vn, a n battery temperature signal C
TnWork and out-of-work control signal C with n isolated step-down DC/DC electric energy transducer
Wn
The charge and discharge balancing controller sends cooling fan and all charge and discharge balancing devices that storage battery or super capacitor are opened in instruction, begins n storage battery or super capacitor charging; Simultaneously, the voltage detector of charge and discharge balancing device inside and Temperature Detector are monitored the charged state of each self-corresponding storage battery or super capacitor, and send the parameter that detects to the charge and discharge balancing controller.The charge and discharge balancing controller is according to the charging characteristic parameter V of certain control algolithm and storage battery or super capacitor
CTOr T
CTControl the charging process of each charge and discharge balancing device, the charging current i of n storage battery or super capacitor
C1, i
C2... i
CnAll non-vanishing, their size is determined according to the capacity of its corresponding storage battery; Respectively charging and discharging equalizer charges to corresponding storage battery or super capacitor with current constant mode or other certain charging modes with pressure limiting.Respectively charge and discharge equalizer and provide electric energy by external electric energy input; At this moment, because the reverse bias of rectifying tube D can not directly charge the charging intake to storage battery or super capacitor from external electric energy input, must be by charging and discharging storage battery or the super capacitor charging of equalizer to correspondence, so just that batteries is original serial connection charge mode changes the charged in parallel mode into; Each charges and discharge equalizer inside and by isolated step-down DC/DC electric energy transducer storage battery or super capacitor and external electric energy input is isolated.
In charging process:
When k storage battery or super capacitor overtemperature, the charge and discharge balancing controller sends control signal C
WkGive k corresponding charge and discharge balancing device, make k charge and discharge balancing device reduce charging current, if through after a while, temperature does not also drop to normal value, it is too high that this storage battery or super capacitor are considered to internal resistance, the charge and discharge balancing controller sends the charge and discharge balancing device that control signal is closed this storage battery or super capacitor correspondence, stops the charging to this storage battery or super capacitor, and reports to the police;
Perhaps, detection voltage or the temperature when k cell batteries or super capacitor reaches charging character voltage V
CTOr charging characteristic temperature value T
CTThe time, the charge and discharge balancing controller sends control signal C
WkGive k corresponding charge and discharge balancing device, stop this cell batteries or super capacitor charging;
Perhaps, when k storage battery or super capacitor always can not be full of electricity, and other storage battery or super capacitor all have been full of electricity, and this storage battery or super capacitor are considered to electric leakage, and the charge and discharge balancing controller also sends control signal C
WkGive k corresponding charge and discharge balancing device, close k charge and discharge balancing device of this storage battery or super capacitor correspondence simultaneously, stop charging, and report to the police this storage battery or super capacitor;
If all storage batterys or super capacitor all are full of electricity, keep the floating charge of a period of time after, the charge and discharge balancing controller sends control signal C
WkGive all charge and discharge balancing devices, close each charge and discharge balancing device, and close the cooling fan of storage battery or super capacitor.
Equalization discharge method and process: referring to accompanying drawing 4, i among the figure
LBe load electricity consumption electric current, i
JThe total current of taking by power bus for n charge and discharge balancing device; i
F1, i
F2I
FnBe each cell B
1, B
2... B
nActual external output current, wherein: i
F1Be the actual external output current of the 1st battery, i
F2Be the actual external output current of the 2nd battery, the rest may be inferred, i
FnIt is the actual external output current of n battery; i
FJ1, i
FJ2... i
FJnBe the euqalizing current of the external output of each charge and discharge balancing device, wherein: i
FJ1Be the externally euqalizing current of output of the 1st charge and discharge balancing device, i
FJ2Be the externally euqalizing current of output of the 2nd charge and discharge balancing device, the rest may be inferred, i
FJnIt is the externally euqalizing current of output of n charge and discharge balancing device; Each charge and discharge balancing device is all by the control of charge and discharge balancing controller, and corresponding control signal between the two is respectively by data communication line C
1, C
2... C
nSwitching signal, wherein: C
1Be the data communication line between charge and discharge balancing controller and first charge and discharge balancing device, it provides path for data-signal, and this data-signal comprises: the terminal voltage signal C of first battery
V1, first battery temperature signal C
T1Work and out-of-work control signal C with first isolated step-down DC/DC electric energy transducer
W1C
2Be the data communication line between charge and discharge balancing controller and second the charge and discharge balancing device, it provides path for data-signal, and this data-signal comprises: the terminal voltage signal C of second battery
V2, second battery temperature signal C
T2Work and out-of-work control signal C with second isolated step-down DC/DC electric energy transducer
W2The rest may be inferred, C
nBe the data communication line between charge and discharge balancing controller and n the charge and discharge balancing device, it provides path for data-signal, and this data-signal comprises: the terminal voltage signal C of n battery
Vn, a n battery temperature signal C
TnWork and out-of-work control signal C with n isolated step-down DC/DC electric energy transducer
Wn
During the discharge beginning, all charge and discharge balancing devices are in closed condition,
Have this moment: i
F1=i
F2=...=i
Fn=i
L
i
Fj1＝i
Fj2＝……＝i
Fjn＝0
When the voltage of k storage battery or super capacitor drops to the discharge characteristic V parameter
FTDuring value, the charge and discharge balancing controller sends control signal C to the charge and discharge balancing device with k cell batteries or the corresponding connection of super capacitor
Wk, making k cell batteries or the work of super capacitor equalization discharge device, this charge and discharge balancing device obtains the electric energy feedback from power bus through rectifying tube D and replenishes electricity to this storage battery or super capacitor, at this moment: i
Fjk≠ 0, the voltage decrease speed of this storage battery is slowed down; When cell batteries or super capacitor all reach its discharge characteristic magnitude of voltage V
FTThe time, the charge and discharge balancing controller sends control signal C
WkClose all charge and discharge balancing devices, and disconnect discharge control switch K, stop load supply electric energy, and report to the police, make storage battery or super capacitor reach balanced, make full use of the electric weight energy of each storage battery or super capacitor at discharge process.
In discharge process:
As if k storage battery or super capacitor brownout or short circuit or open circuit, the charge and discharge balancing controller sends control signal C
WkClose all charge and discharge balancing devices, disconnect discharge control switch K, stop load supply electric energy, and report to the police;
Perhaps, in discharge process, if k battery temp is too high, the charge and discharge balancing controller sends the cooling fan that storage battery or super capacitor are opened in instruction; If sometime, the temperature of storage battery or super capacitor does not still descend, the charge and discharge balancing controller can send control signal C
WkClose all charge and discharge balancing devices, disconnect discharge control switch K, stop load supply electric energy, and report to the police.
Advantage of the present invention is: can make the batteries of series connection or super capacitor group realize that in charge and discharge process each is single The equalizaing charge of accumulator body or super capacitor and balanced discharge, prevent that low capacity battery or super capacitor from overcharging or Overdischarge and cause damaging and affect the life-span avoids the charging of large-capacity battery or super capacitor to be discontented with.
Claims (2)
1, the charging and discharging balance device of a kind of storage battery or super capacitor is electrically connected by charge and discharge balancing controller and several charge and discharge balancing devices and to form, and it is characterized in that: the charge and discharge balancing controller is made of microsystem; Each charge and discharge balancing device is made up of voltage detector, Temperature Detector and isolated step-down DC/DC electric energy transducer; The input of each isolated step-down DC/DC electric energy transducer connects with external electric energy input, and be attached on the power bus that is in series by each cell batteries or super capacitor by rectifier diode (D), the output of each isolated step-down DC/DC electric energy transducer connects with the output of each self-corresponding cell batteries or super capacitor, the cell batteries that the voltage detector input is corresponding with each or the output of super capacitor connect, the input of Temperature Detector connects with temperature probe, temperature probe is attached to each self-corresponding cell batteries or super capacitor positive terminal place, each voltage detector connects with the charge and discharge balancing controller respectively with the output of Temperature Detector, and the output of charge and discharge balancing controller connects with the signal input end of each isolated step-down DC/DC electric energy transducer respectively.
2, the charge and discharge balancing method of a kind of storage battery or super capacitor is characterized in that: during charging, the charge and discharge balancing controller sends control signal (C
W1, C
W2... C
Wn) giving n charge and discharge balancing device respectively, n is a natural number, each charge and discharge balancing device is worked simultaneously, and with n different charging current (i corresponding to cell batteries that connects separately or super capacitor amount of capacity
C1, i
C2I
Cn) each corresponding cell batteries or super capacitor are charged; Meanwhile, voltage detector detects the cell batteries of each corresponding connection or the voltage and the temperature of super capacitor respectively with Temperature Detector, and the result of detection delivers to the charge and discharge balancing controller respectively; When the detection voltage of k cell batteries or super capacitor or temperature reach charging character voltage (V
CT) or charging characteristic temperature value (T
CT) time, the charge and discharge balancing controller sends control signal (C
Wk) give k corresponding charge and discharge balancing device, stop this cell batteries or super capacitor are charged, wherein small letter English alphabet k is in n storage battery or the super capacitor any 1, and the span of k is 1 to n; During discharge, all at the beginning n charge and discharge balancing device cuts out and do not work, the euqalizing current (i of each charge and discharge balancing device output
Fj1, i
Fj2... i
Fjn) all be null value, and the discharging current (i of all each cell batteries or super capacitor
F1, i
F2... i
Fn) all equate, equal load current (i
L), meanwhile, each voltage detector and Temperature Detector detect the voltage and the temperature of each self-corresponding cell batteries or super capacitor, and testing result is delivered to the charge and discharge balancing controller respectively; When the voltage of k cell batteries or super capacitor drops to discharge characteristic magnitude of voltage (V
FT) time, the charge and discharge balancing controller sends control signal (C to the charge and discharge balancing device with k cell batteries or the corresponding connection of super capacitor
Wk), make k cell batteries or the work of super capacitor charge and discharge balancing device, its euqalizing current (i
Fjk) non-vanishing; The charge and discharge balancing device obtains electric energy through rectifying tube (D) from the power bus that is in series by each cell batteries or super capacitor, again through the isolated step-down DC/DC electric energy transducer of this charge and discharge balancing device to this storage battery or super capacitor electric energy supplement, the terminal voltage decrease speed of this storage battery or super capacitor is slowed down; When most of storage batterys or super capacitor all reach its discharge characteristic magnitude of voltage (V
FT) time, the charge and discharge balancing controller sends control signal (C
Wk) close the charge and discharge balancing device that all have been opened, stop discharge and warning; As if k cell batteries or super capacitor brownout or short circuit or open circuit, the charge and discharge balancing controller sends control signal (C
Wk) give the charge and discharge balancing device, quit work and report to the police; Temperature as if k storage battery or super capacitor is too high, and the charge and discharge balancing controller sends control signal (C
Wk) open the cooling fan of storage battery or super capacitor, if this battery temp or super capacitor temperature still do not descend after after a while, the charge and discharge balancing controller sends control signal (C
Wk) give the charge and discharge balancing device, quit work and report to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031183700A CN1316710C (en) | 2003-05-13 | 2003-05-13 | Accumulator, super capacitor charge-discharge equalizing method and equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031183700A CN1316710C (en) | 2003-05-13 | 2003-05-13 | Accumulator, super capacitor charge-discharge equalizing method and equipment |
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| CN1449085A CN1449085A (en) | 2003-10-15 |
| CN1316710C true CN1316710C (en) | 2007-05-16 |
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| CNB031183700A Expired - Fee Related CN1316710C (en) | 2003-05-13 | 2003-05-13 | Accumulator, super capacitor charge-discharge equalizing method and equipment |
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