CN204681109U - Reduce the device of super capacitor discharge voltage lower limit - Google Patents
Reduce the device of super capacitor discharge voltage lower limit Download PDFInfo
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- CN204681109U CN204681109U CN201520010606.3U CN201520010606U CN204681109U CN 204681109 U CN204681109 U CN 204681109U CN 201520010606 U CN201520010606 U CN 201520010606U CN 204681109 U CN204681109 U CN 204681109U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
A kind of device reducing ultracapacitor discharge voltage lower limit.Super capacitor has incomparably tempting prospect as the power supply of motor vehicle especially electric motor coach, so present super capacitor discharge technology can not make it fully discharge, discharge voltage lower limit is generally only the half of super capacitor nominal charging voltage value, there is considerable electric energy not discharge, limit the course continuation mileage of motor vehicle.For head it off, the utility model is divided into some supercapacitive cell bank of super capacitors, each supercapacitive cell group is connected with appliance switch, electrical appliance Switch Controller ultracapacitor cell carries out parallel connection or series connection, realize the deep discharge of super capacitor, electric discharge lower limit can be low to 1/8 of super capacitor nominal charging voltage value, release the electric energy stored by electric capacity to greatest extent, add the course continuation mileage of vehicle, or the consumption of capacitor can be reduced when reaching identical course continuation mileage, the capacity 22% of electric capacity can be reduced.
Description
Art
It take bank of super capacitors as the electrical equipment of power supply that the utility model relates to a kind of, particularly motor vehicle especially electric motor coach, the device of this reduction bank of super capacitors discharge voltage lower limit can make super capacitor discharge electric energy stored by electric capacity to greatest extent, increases the course continuation mileage of motor vehicle or reduces the production cost of motor vehicle.
Background technology
At present, known technology is, for driving the ultracapacitor of motor vehicle, it is a bank of super capacitors, in the discharge process of its drive motor, be unlikely to too low and output torque that is that do not reach required for motor to make the terminal voltage of motor, be provided with the discharge voltage lower limit of ultracapacitor, this value is generally 1/2 of ultracapacitor rated value, as described in paper " application of super capacitor system in electric automobile " (the loyal Yuan Xue of the clear Chen Wei Wang Ren of author: Sun Li) " super capacitor operating voltage is 380 ~ 190V ", after need charging lower than ultracapacitor during this value, motor vehicle could continue to travel.This just also exists a very large shortcoming, namely the electric energy stored by ultracapacitor does not fully discharge, ultracapacitor also has suitable potentiality not play, cause the course continuation mileage of motor vehicle shorter thus, or need when motor vehicle arrives certain course continuation mileage more capacitor is installed, thus add the manufacturing cost of motor vehicle.
Summary of the invention
In order to solve the bank of super capacitors driving motor vehicle, in use discharge voltage can not lower than the problem of the discharge voltage lower limit of setting, the utility model provides a kind of device reducing super capacitor discharge voltage lower limit, this device can make the discharge voltage lower limit of bank of super capacitors be reduced to 1/4 ~ 1/8 by 1/2 of bank of super capacitors load voltage value, the electric energy of release stored by bank of super capacitors to greatest extent, the course continuation mileage of motor vehicle can be increased, or reduce 20 ~ 23% of ultracapacitor pool-size when reaching identical course continuation mileage, thus significantly reduce the manufacturing cost of motor vehicle.
The technical scheme in the invention for solving the technical problem is: in the electric vehicle powertrain be made up of charger, bank of super capacitors, ultracapacitor cell connected mode converter, electric machine controller and motor, bank of super capacitors is electrically connected with charger, ultracapacitor cell connected mode converter, ultracapacitor cell control module and electric machine controller respectively, controller is electrically connected with motor again, and charger is also electrically connected with electric machine controller and ultracapacitor cell connected mode converter.Wherein, bank of super capacitors also call draws Capacitor banks, and bank of super capacitors can be made up of 2,3 or 4 ultracapacitor cell, and the capacitance of each ultracapacitor cell, rated voltage and internal resistance are all identical; The State Transferring of the parallel connection of ultracapacitor cell, series connection or series and parallel is realized by ultracapacitor cell connected mode converter, ultracapacitor cell connected mode converter can be made up of single-pole switch, triple-pole switch or sextupole switch, 2,3 or have two kinds of connected modes respectively between 4 supercapacitive cell and ultracapacitor cell connected mode converter.The single-pole switch quantity that ultracapacitor cell connected mode converter uses, uses 3 when the bank of super capacitors be made up of 2 ultracapacitor cell, has two kinds of electric connection mode; Use 6 when the bank of super capacitors be made up of 3 ultracapacitor cell, have two kinds of electric connection mode; 11 are used when the bank of super capacitors be made up of 4 ultracapacitor cell; The triple-pole switch quantity that ultracapacitor cell connected mode converter uses, uses 1 when bank of super capacitors is divided into 2 supercapacitive cell, have two kinds of electric connection mode; Use 2 when bank of super capacitors is divided into 3 ultracapacitor cell, have two kinds of electric connection mode; The sextupole number of switches that ultracapacitor cell connected mode converter uses, uses 1 when bank of super capacitors is divided into 3 ultracapacitor cell, have two kinds of electric connection mode; 3 are used when bank of super capacitors is divided into 4 ultracapacitor cell.When the converter action of ultracapacitor connected mode, electric machine controller is zero to the output of motor, and the action of ultracapacitor connected mode converter completes, and electric machine controller recovers the output to motor.When bank of super capacitors charge or discharge, if its magnitude of voltage is between minimum discharge voltage value that is specified and that set, now all ultracapacitor cell are connected in parallel, when the discharge voltage value of bank of super capacitors is lower than the minimum discharge voltage value set, electric machine controller stops exporting automatically, namely be zero to motor output voltage, through the time delay of short time, the action of ultracapacitor cell connected mode converter, the connected mode of ultracapacitor cell transfers series connection or string to by parallel connection, and Hybrid connections, again through short time time delay, electric machine controller recovers to export automatically, ultracapacitor cell is at series connection or string, and under Hybrid connections mode, when the discharge voltage value of bank of super capacitors is lower than the minimum discharge voltage value set, electric machine controller stops exporting automatically, the bank of super capacitors with 2 or 3 ultracapacitor cell enters state to be charged, now, two kinds of patterns manually or automatically can be selected to charge to bank of super capacitors, the bank of super capacitors with 4 ultracapacitor cell supercapacitive cell be all be connected in series and in minimum discharge voltage value lower than setting of the discharge voltage value of bank of super capacitors time, namely this bank of super capacitors enters state to be charged, also two kinds of patterns manually or automatically can be selected to charge to bank of super capacitors, enter charging procedure, first make the action of ultracapacitor cell connected mode converter, all ultracapacitor cell is in parallel, through the short time, time delay is charged to bank of super capacitors by charger again, namely when charger charges to bank of super capacitors, all ultracapacitor cell are in parallel connection.
The beneficial effect of this utility model of theory analysis: ultracapacitor or Farad capacitors belong to a type of capacitor, essence is that volume small capacitances amount is large, i.e. specific energy (Wh.Kg
-1) large, single capacitance can accomplish 1000F now.About the computing formula of capacitor is applicable to ultracapacitor completely.The energy theorem that electric capacity discharges when discharging or provides is:
E=F (U
cn 2-Ucmin2) × ч/(2 × 3.6 × 10
6), wherein E is electric energy, unit K W; F is capacitance; U
cnfor electric capacity initial voltage, be namely considered as bank of super capacitors load voltage value, unit V; Ucmin is that electric capacity stops discharge voltage, is namely considered as the discharge voltage lower limit of bank of super capacitors, unit V; ч is capacitor discharge efficiency.
As Ucmin=1/2Ucn, E
1/2=F{Ucn
2-(1/2Ucn)
2} × ч/(2 × 3.6 × 106)=0.75Ucn
2f × ч/(2 × 3.6 × 106); As Ucmin=1/4Ucn, E
1/4=F{Ucn
2-(1/4Ucn)
2} × ч/(2 × 3.6 × 106)=0.9375Ucn
2f × ч/(2 × 3.6 × 106); As Ucmin=1/8Ucn, E
1/8=F{Ucn
2-(1/8Ucn)
2} × ч/(2 × 3.6 × 106)=0.984375Ucn
2f × ч/(2 × 3.6 × 106).Derive E thus
1/4/ E
1/2=1.25, E
1/8/ E
1/2=1.31, this proves: when the discharge voltage lower limit of bank of super capacitors is reduced to 1/4 or 1/8 by 1/2 of bank of super capacitors load voltage value, the electric energy that bank of super capacitors discharges is increased to 1.25 times or 1.31 times respectively.
If motor vehicle course continuation mileage is identical, the device of the utility model reduction super capacitor discharge voltage lower limit can reduce the consumption of super capacitor, reduces the cost of motor vehicle.Specifically be calculated as follows: as identical in motor vehicle course continuation mileage, the electric energy of bank of super capacitors electric discharge is identical, i.e. E
1/2=E
1/4if corresponding super capacitor capacity is respectively F
1, F
2, according to E
1/2=E
1/4obtain 0.75U
cn 2f
1× ч/(2 × 3.6 × 10
6)=0.9375U
cn 2f
2× ч/(2 × 3.6 × 10
6), obtain F after readjusting and simplifying
2/ F
1=0.8, when this illustrates that ultracapacitor discharge voltage lower limit drops to 1/4 by 1/2 of ultracapacitor rated voltage, can reduce by the capacitance of 20%; In like manner, when super capacitor discharge voltage lower limit drops to 1/8 by 1/2 of ultracapacitor rated voltage, at least can reduce by the capacitance of 23%
Citing a: if bank of super capacitors, at electric capacity initial voltage (rated voltage of namely charging) U
cn=380V, electric capacity stops discharge voltage (i.e. minimum discharge voltage value) and is respectively Ucmin=190V, U
/cmin=95V or U
//during cmin=47.5V, bank of super capacitors discharge being compared as follows of electric energy:
As Ucmin=190V, the electric energy that bank of super capacitors discharges is E=F (U
cn 2-Ucmin
2) × ч/(2 × 3.6 × 10
6)=F (380
2-190
2) × ч/(2 × 3.6 × 10
6)=F (144400-36100) × ч/(2 × 3.6 × 10
6)=108300F ч/7.2 × 10
6=15041.667F ч × 10
-6
Work as U
/during cmin=95V, the electric energy that bank of super capacitors discharges is E
/=F (U
cn 2-Ucmin
2) × ч/(2 × 3.6 × 10
6)=F (380
2-95
2) × ч/(2 × 3.6 × 10
6)=F (144400-9025) × ч/(2 × 3.6 × 10
6)=135375F ч/7.2 × 10
6=18802.0833F ч × 10
-6
As Ucmin=47.5V, the electric energy that bank of super capacitors discharges is E
//=F (U
cn 2-Ucmin
2) × ч/(2 × 3.6 × 10
6)=F (380
2-47.5
2) × ч/(2 × 3.6 × 10
6)=F (144400-2256.25) × ч/(2 × 3.6 × 10
6)=142143.75F ч/7.2 × 10
6=19742.188F ч × 10
-6
Be not difficult to find out by above-mentioned calculating, E
// E=1802.0833F ч × 10
-6/ 15041.667F ч × 10
-6=1.25, when namely the minimum discharge voltage value of bank of super capacitors drops to 1/4 by 1/2 of its rated voltage, the electric energy discharged is increased to 1.25 times, namely adds 25%; E
/// E=19742.188F ч × 10
-6/ 15041.667F ч × 10
-6=1.31, when namely the minimum discharge voltage value of bank of super capacitors drops to 1/8 by 1/2 of its rated voltage, the electric energy discharged is increased to 1.31 times, namely adds 31%.
The beneficial effects of the utility model are: the device adopting this reduction ultracapacitor discharge voltage lower limit, 1/2 of the rated voltage that the ultracapacitor discharge voltage lower limit that motor vehicle can be made used is limited by conventional art drops to 1/4 ~ 1/8, the electric energy of release 25% ~ 31% more than conventional art, namely increases by the course continuation mileage of 25% ~ 31%% thus; Or motor vehicle travels identical fare register after being full of electricity, adopt the device reducing ultracapacitor discharge voltage lower limit can lack installation 20% ~ 23% ultracapacitor, namely reduce the ultracapacitor purchase cost of 20% ~ 23%.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is system block diagram of the present utility model
Fig. 2 a is two ultracapacitor cell parallel equivalent circuit diagrams
Fig. 2 b is the first series system equivalent circuit diagram of two ultracapacitor cell
Fig. 2 c is two ultracapacitor cell the second series system equivalent circuit diagrams
Fig. 3 a is three ultracapacitor cell parallel equivalent circuit diagrams
Fig. 3 b is the first series system equivalent circuit diagram of three ultracapacitor cell
Fig. 3 c is three ultracapacitor cell the second series system equivalent circuit diagrams
Fig. 4 a is four ultracapacitor cell parallel equivalent circuit diagrams
Fig. 4 b is that four ultracapacitor cell two go here and there two and series-parallel connection equivalent circuit diagram
Fig. 4 c is four ultracapacitor cell series equivalent circuit figure
Fig. 5 a is two the first connected mode of ultracapacitor cell principle of parallel figure
Fig. 5 b is two the first connected mode of ultracapacitor cell series connection schematic diagrams
Fig. 5 c is two ultracapacitor cell the second connected mode principle of parallel figure
Fig. 5 d is two ultracapacitor cell the second connected mode series connection schematic diagrams
Fig. 6 a is three the first method of attachment of ultracapacitor cell principle of parallel figure
Fig. 6 b is three the first method of attachment of ultracapacitor cell series connection schematic diagrams
Fig. 6 c is three ultracapacitor cell the second method of attachment principle of parallel figure
Fig. 6 d is three ultracapacitor cell the second method of attachment series connection schematic diagrams
Fig. 7 a is four ultracapacitor cell principle of parallel figure
Fig. 7 b is four ultracapacitor cell two and two series windings connect schematic diagram
Fig. 7 c is four ultracapacitor cell series connection schematic diagrams
Fig. 8 a is the first winding diagram that two ultracapacitor cell adopt single-pole switch
Fig. 8 b is the Second Linking Method figure that two ultracapacitor cell adopt single-pole switch
Fig. 8 c is the first winding diagram that two ultracapacitor cell adopt triple-pole switch
Fig. 8 d is the Second Linking Method figure that two ultracapacitor cell adopt triple-pole switch
Fig. 9 a is the first winding diagram that three super capacitor list device unit adopt single-pole switch
Fig. 9 b is the Second Linking Method figure that three ultracapacitor cell adopt single-pole switch
Fig. 9 c is the first winding diagram that three ultracapacitor cell adopt triple-pole switch
Fig. 9 d is the Second Linking Method figure that three ultracapacitor cell adopt triple-pole switch
Embodiment
1. chargers in figure, 2. bank of super capacitors, 2-11, 2-12, 2-21, 2-22, 2-23, 2-31, 2-32, 2-33, 2-34. ultracapacitor cell, 3. ultracapacitor cell connected mode converter, 3-11, 3-12, 3-13, 3-21, 3-22, 3-23, 3-24, 3-25, 3-26, 3-31, 3-32, 3-33, 3-34, 3-35, 3-36, 3-37, 3-38, 3-39. appliance switch, 3D-1, 3D-2, 3D-3, 3D-4, 3D-5, 3D-6. single-pole switch, 3s, 3s-1, 3s-2. triple-pole switch, 4. electric machine controller, 5. motor, 6. ultracapacitor cell control module, A, B. bank of super capacitors charging and output, C, D. single-pole switch control end, E, F. triple-pole switch control end.
The regulation of supercapacitive cell charging polarity in figure: supercapacitive cell symbol have one end of stain be charging after positive pole (also can be and be defined as negative pole, be all defined as positive pole in the utility model technical data), the other end be charging after negative pole.
In FIG, bank of super capacitors (2) is electrically connected with charger (1), ultracapacitor cell connected mode converter (3) and electric machine controller (4) respectively, charger (1) is also electrically connected with electric machine controller (4) and ultracapacitor cell connected mode converter device (3) respectively, and ultracapacitor cell control module (6) is electrically connected with electric machine controller (4), ultracapacitor cell connected mode converter device (3) and bank of super capacitors (2) respectively.
In Fig. 2 a, Fig. 2 b and Fig. 2 c, bank of super capacitors (2) is divided into two ultracapacitor cell (2-11) and (2-12), and the capacitance of each ultracapacitor cell, rated voltage and internal resistance are all identical.
Fig. 2 a is that two ultracapacitor cell are connected in parallel: the positive pole of ultracapacitor cell (2-11) and (2-12) links together and as bank of super capacitors charging and output (A), the negative pole of ultracapacitor cell (2-11) and (2-12) links together and charges and output (B) as bank of super capacitors.
Fig. 2 b is that the first of ultracapacitor cell (2-11) and (2-12) is connected in series mode: (2-11) positive pole is as bank of super capacitors charging and output (A), (2-11) negative pole is connected with the positive pole of (2-12), and the negative pole of (2-12) is as bank of super capacitors charging and output (B).
Fig. 2 c is that the second of ultracapacitor cell (2-11) and (2-12) is connected in series mode: (2-12) positive pole is as bank of super capacitors charging and output (A), (2-12) negative pole is connected with the positive pole of (2-11), and the negative pole of (2-11) is as bank of super capacitors charging and output (B).
This is the first embodiment that the utility model reduces the device of ultracapacitor discharge voltage lower limit, and the program can make ultracapacitor discharge voltage lower limit drop to 1/4 by 1/2 of ultracapacitor rated value.
In Fig. 3 a and Fig. 3 b, bank of super capacitors (2) is divided into three ultracapacitor cell (2-21), (2-22) and (2-23), the capacitance of each ultracapacitor cell, rated voltage and internal resistance are all identical
Fig. 3 a is that three ultracapacitor cell are connected in parallel: the positive pole of ultracapacitor cell (2-21), (2-22) and (2-23) links together and makes bank of super capacitors charging and output (A), and the negative pole of ultracapacitor cell (2-21), (2-22) and (2-23) links together and charges and output (B) as bank of super capacitors
Fig. 3 b be three ultracapacitor cell the first be connected in series mode: the positive pole of (2-21) is as ultracapacitor charging and output (A), (2-21) negative pole is connected with the positive pole of (2-22), (2-22) negative pole is connected with the positive pole of (2-23), and the negative pole of (2-23) is as ultracapacitor charging and output (B).
Fig. 3 .b is that three ultracapacitor cell the second are connected in series mode: the positive pole of (2-23) is as bank of super capacitors charging and output (A), (2-23) negative pole is connected with the positive pole of (2-22), (2-22) negative pole is connected with the positive pole of (2-21), and the negative pole of (2-21) is as bank of super capacitors charging and output (B).
This is the second embodiment that the utility model reduces the device of ultracapacitor discharge voltage lower limit, and the program can make ultracapacitor discharge voltage lower limit drop to 1/6 by 1/2 of super capacitor rated value;
In Fig. 4 a, Fig. 4 b and Fig. 4 c, bank of super capacitors (2) is divided into four ultracapacitor cell (2-31), (2-32), (2-33) and (2-34), and the capacitance of each ultracapacitor cell, rated voltage and internal resistance are all identical.
Fig. 4 a is four ultracapacitor cell parallel: the positive pole of ultracapacitor cell (2-31), (2-32), (2-33) and (2-34) links together and as bank of super capacitors charging and output (A), the negative pole of ultracapacitor cell (2-31), (2-32), (2-33) and (2-34) links together and charges and output (B) as bank of super capacitors.
Fig. 4 b is four ultracapacitor cell two and two string connected modes; The positive pole of ultracapacitor cell (2-31) and (2-32) links together and charges and output (A) as bank of super capacitors, (2-31) link together with the negative pole of (2-32) and be connected with the positive pole of (2-33) and (2-34), the negative pole of (2-33) and (2-34) connects together and charges and output (B) as bank of super capacitors.
Fig. 4 c is that four ultracapacitor cell are connected in series mode: the positive pole of ultracapacitor cell (2-31) is as bank of super capacitors charging and output (A).(2-31) negative pole links together with the positive pole of (2-32), (2-32) negative pole is connected with the positive pole of (2-33), (2-33) negative pole is connected with the positive pole of (2-34), and the negative pole of (2-34) is bank of super capacitors charging and output (B).
This is the third embodiment that the utility model reduces the device of ultracapacitor discharge voltage lower limit, and the program can make ultracapacitor discharge voltage lower limit drop to 1/8 by 1/2 of ultracapacitor rated value;
Fig. 5 a and Fig. 5 b are ultracapacitor cell (2-11) and the first connected mode of (2-12): appliance switch (3-11) is connected with the negative pole of ultracapacitor cell (2-11), (2-12) respectively, appliance switch (3-13) is connected with the positive pole of ultracapacitor cell (2-11), (2-12) respectively, and appliance switch (3-12) is connected with the negative pole of ultracapacitor cell (2-11), the positive pole pole of (2-12) respectively.
Fig. 5 a is the parallel connection of ultracapacitor cell (2-11), (2-12), wherein the positive pole of (2-11) and (2-12) connects together and charges and output (A) as bank of super capacitors, and the negative pole of (2-11) and (2-12) connects together and charges and output (B) as bank of super capacitors.
Fig. 5 b is the series connection of ultracapacitor cell (2-11), (2-12), wherein the positive pole of (2-11) is as bank of super capacitors charging and output (A), (2-11) positive pole of negative pole and (2-12) connects together, and the negative pole of (2-12) is as bank of super capacitors charging and output (B).
Fig. 5 a and Fig. 5 b is device the first mode of connection schematic diagram when bank of super capacitors is divided into two ultracapacitor cell that the utility model reduces ultracapacitor discharge voltage lower limit.
Fig. 5 c and Fig. 5 d are ultracapacitor cell (2-11) and the second connected mode of (2-12): appliance switch (3-11) is connected with the positive pole of ultracapacitor cell (2-11), (2-12) respectively, appliance switch (3-13) is connected with the negative pole of ultracapacitor cell (2-11), (2-12) respectively, and appliance switch (3-12) is connected with the positive pole of ultracapacitor cell (2-11), the negative pole pole of (2-12) respectively.
Fig. 5 c is the parallel connection of ultracapacitor cell (2-11), (2-12), wherein the positive pole of (2-11) and (2-12) connects together and charges and output (A) as bank of super capacitors, and the negative pole of (2-11) and (2-12) connects together and charges and output (B) as bank of super capacitors.
Fig. 5 d is the series connection of ultracapacitor cell (2-11), (2-12), wherein the positive pole of (2-12) is as bank of super capacitors charging and output (A), (2-12) positive pole of negative pole and (2-11) connects together, and the negative pole of (2-11) is as bank of super capacitors charging and output (B).
Fig. 5 c and Fig. 5 d is the Second Linking Method mode schematic diagram of device when bank of super capacitors is divided into two ultracapacitor cell that the utility model reduces ultracapacitor discharge voltage lower limit.
Fig. 6 a and Fig. 6 b is ultracapacitor cell (2-21), (2-22) and the first connected mode of (2-23): appliance switch (3-21) respectively with ultracapacitor cell (2-21), (2-23) negative pole connects, appliance switch (3-24) respectively with ultracapacitor cell (2-22), (2-23) negative pole connects, appliance switch (3-23) and (3-26) series connection, its tie point is connected with ultracapacitor cell (2-22) positive pole, appliance switch (3-23) other end is connected with ultracapacitor cell (2-21) positive pole, appliance switch (3-26) other end is connected with ultracapacitor cell (2-23) positive pole, appliance switch (3-22) respectively with the negative pole of ultracapacitor cell (2-21), (2-22) positive pole pole connects, appliance switch (3-25) respectively with the negative pole of ultracapacitor cell (2-22), (2-23) positive pole pole connects.
Fig. 6 a is the parallel connection of ultracapacitor cell (2-21), (2-22) and (2-23), wherein the positive pole of (2-21), (2-22) and (2-23) connects together and charges and output (A) as bank of super capacitors, and the negative pole of (2-21), (2-22) and (2-23) connects together and charges and output (B) as bank of super capacitors.
Fig. 6 b is the series connection of ultracapacitor cell (2-21), (2-22) and (2-23), wherein the positive pole of (2-21) is as bank of super capacitors charging and output (A), (2-21) negative pole is connected with (2-22) positive pole, (2-22) negative pole is connected with the positive pole of (2-23), and the negative pole of (2-23) is as bank of super capacitors charging and output (B).
Fig. 6 a and Fig. 6 b is device the first mode of connection schematic diagram when bank of super capacitors is divided into three ultracapacitor cell that the utility model reduces ultracapacitor discharge voltage lower limit.
Fig. 6 c and Fig. 6 d is ultracapacitor cell (2-21), (2-22) and the second method of attachment of (2-23): appliance switch (3-21) respectively with ultracapacitor cell (2-21), (2-23) positive pole connects, appliance switch (3-24) respectively with ultracapacitor cell (2-22), (2-23) positive pole connects, appliance switch (3-23) and (3-26) series connection, its tie point is connected with ultracapacitor cell (2-22) negative pole, appliance switch (3-23) other end is connected with ultracapacitor cell (2-21) negative pole, appliance switch (3-26) other end is connected with ultracapacitor cell (2-23) negative pole, appliance switch (3-22) respectively with the positive pole of ultracapacitor cell (2-21), (2-22) negative pole connects, appliance switch (3-25) respectively with the positive pole of ultracapacitor cell (2-22), (2-23) negative pole connects.
Fig. 6 c is the parallel connection of ultracapacitor cell (2-21), (2-22) and (2-23), wherein the positive pole of (2-21), (2-22) and (2-23) connects together and charges and output (A) as bank of super capacitors, and the negative pole of (2-21), (2-22) and (2-23) connects together and charges and output (B) as bank of super capacitors.
Fig. 6 d is the series connection of ultracapacitor cell (2-21), (2-22) and (2-23), wherein the positive pole of (2-23) is as bank of super capacitors charging and output (A), (2-23) negative pole is connected with (2-22) positive pole, (2-22) negative pole is connected with the positive pole of (2-21), and the negative pole of (2-21) is as bank of super capacitors charging and output (B).
Fig. 6 c and Fig. 6 d is the Second Linking Method mode schematic diagram of device when bank of super capacitors is divided into three ultracapacitor cell that the utility model reduces ultracapacitor discharge voltage lower limit.
At Fig. 7 a, in Fig. 7 b and Fig. 7 c, appliance switch (3-31) respectively with ultracapacitor cell (2-31) negative pole, appliance switch (3-34), (3-311) connect, appliance switch (3-34) respectively with ultracapacitor cell (2-32) negative pole, appliance switch (3-311) connects, appliance switch (3-37) respectively with ultracapacitor cell (2-33), (2-34) negative pole and appliance switch (3-311) connect, appliance switch (3-33), (3-36) contact, its tie point is connected with ultracapacitor cell (2-32) positive pole, appliance switch (3-33) other end is connected with ultracapacitor cell (2-31) positive pole, appliance switch (3-36) other end is connected with (3-39), its tie point is connected with ultracapacitor cell (2-33) positive pole, appliance switch (3-39) other end is connected with ultracapacitor cell (2-34) positive pole, appliance switch (3-32) one end is connected with ultracapacitor cell (2-31) negative pole, the other end is connected with ultracapacitor cell (2-32) positive pole, appliance switch (3-35) one end is connected with ultracapacitor cell (2-32) negative pole, the other end is connected with ultracapacitor cell (2-33) positive pole, appliance switch (3-38) one end is connected with the negative pole of ultracapacitor cell (2-33), the other end is connected with ultracapacitor cell (2-34) positive pole.This is the mode of connection of device when bank of super capacitors is divided into four ultracapacitor cell that the utility model reduces ultracapacitor discharge voltage lower limit
Fig. 7 a is the parallel connection of ultracapacitor cell (2-31), (2-32), (2-33) and (2-34), and wherein the positive pole of (2-31), (2-32), (2-33) and (2-34) connects together and charges and output (A) as bank of super capacitors; (2-31), the negative pole of (2-32), (2-33) and (2-34) connects together and charges and output (B) as bank of super capacitors.
Fig. 7 b is the two strings two also state of ultracapacitor cell (2-31), (2-32), (2-33) and (2-34), wherein the positive pole of (2-31) and (2-32) connects together and charges and output (A) as bank of super capacitors, (2-31) connect together with the negative pole of (2-32) and be connected with the positive pole of (2-33) and (2-34), (2-33) is connected with the negative pole of (2-34) and charges and output (B) as bank of super capacitors.
Fig. 7 c is the series connection of ultracapacitor cell (2-31), (2-32), (2-33) and (2-34), wherein the positive pole of (2-31) is as bank of super capacitors charging and output (A), (2-31) negative pole is connected with the positive pole of (2-32), (2-32) negative pole is connected with the positive pole of (2-33), (2-33) negative pole is connected with (2-34) positive pole, and (2-34) negative pole is as bank of super capacitors charging and output (B).
In Fig. 8 a, Fig. 8 b, Fig. 8 c and Fig. 8 d, 1., 2. single-pole switch 3D-1's is its coil-end, 3., be 4. its contact output, the mark of other single-pole switchs 3D-2,3D-3 is identical therewith, very 1. ultracapacitor cell (2-11) just hold, 2. the negative pole of ultracapacitor cell (2-11) for hold, and the mark of ultracapacitor cell (2-12) is identical therewith; 1., 2. triple-pole switch 3s's is its coil-end, and 3., 4., 5., 6., 7. and be 8. the output of its three pole contact, E, F are triple-pole switch control end.
Fig. 8 a is that two ultracapacitor cell adopt the first mode of connection figure of single-pole switch, wherein, 1. the end of ultracapacitor cell (2-11) connects the 3. end of bank of super capacitors charging and output (A) and single-pole switch 3D-3 respectively, 4. the end of 3D-3 connects the 4. end of 1. end and the single-pole switch 3D-2 of ultracapacitor cell (2-12) respectively, 3. the end of 3D-2 is connected with the 3. end of single-pole switch 3D-1, 3. the end of 3D-1 is connected with the 2. end of ultracapacitor cell (2-11), 4. the end of single-pole switch 3D-1 is connected with the 2. end of ultracapacitor cell (2-12), (2-12) 2. end connects bank of super capacitors charging and output (B).Single-pole switch 3D-1,3D-2 link together with the 1. end of 3D-3 and are connected single-pole switch control end (C), and single-pole switch 3D-1,3D-2 link together with the 2. end of 3D-3 and be connected single-pole switch control end (D).This is bank of super capacitors when being divided into two ultracapacitor cell, uses the first mode of connection of 3 single-pole switchs.
Fig. 8 b is the Second Linking Method mode figure that two ultracapacitor cell adopt single-pole switch, wherein, 1. the end of ultracapacitor cell (2-11) is connected with the 3. end of single-pole switch 3D-3,3. the end of 3D-3 is connected with the 3. end of single-pole switch 3D-2,4. the end of 3D-3 is connected with the 1. end of ultracapacitor cell (2-12), the charging of 1. connection bank of super capacitors and the output (A) of (2-12).Single-pole switch 3D-1 4. hold respectively with 3D-2 4. and the 2. end of ultracapacitor cell (2-12) be connected, 3. the end of single-pole switch 3D-1 is connected with the 2. end of ultracapacitor cell (2-11), and the 2. end of (2-11) connects bank of super capacitors charging and output (B).Single-pole switch 3D-1,3D-2 link together with the 1. end of 3D-3 and are connected single-pole switch control end (C), and single-pole switch 3D-1,3D-2 link together with the 2. end of 3D-3 and be connected single-pole switch control end (D).This is bank of super capacitors when being divided into two ultracapacitor cell, uses the Second Linking Method mode of 3 single-pole switchs.
Fig. 8 c is that two ultracapacitor cell adopt the first mode of connection figure of triple-pole switch, 1. the end of ultracapacitor cell (2-11) is connected with the 3. end of triple-pole switch 3S, (2-11) 1. termination bank of super capacitors charging and output (A), 4. the end of 3S 6. holds with it respectively and the 1. end of ultracapacitor cell (2-12) is connected, 5. 7. the end of 3S is held with it and is connected, 7. end is connected with the 2. end of ultracapacitor cell (2-11), 8. the end of 3S connects the 2. end of ultracapacitor cell (2-12), (2-12) 2. termination bank of super capacitors charging and output (B).1. the end of 3S connects triple-pole switch control end (E), and the 2. end of 3S connects triple-pole switch control end (F), and this is bank of super capacitors when being divided into two ultracapacitor cell, uses the first mode of connection of a triple-pole switch.
Fig. 8 d is that two ultracapacitor cell adopt triple-pole switch Second Linking Method mode figure, 1. the end of ultracapacitor cell (2-11) is connected with the 3. end of triple-pole switch 3S, 3. 5. the end of 3S is held with it and is connected, (2-12) 1. termination bank of super capacitors charging and output (A), (2-12) 1. hold also is connected with the 4. end of 3S, (2-12) 2. end and 3S are 8., 6. connection is held, 7. the end of 3S be connected, 7. end is connected with the 2. end of ultracapacitor cell (2-11), (2-11) 2. termination bank of super capacitors charging and output (B).1. the end of 3S connects triple-pole switch control end (E), and the 2. end of 3S connects triple-pole switch control end (F), and this is bank of super capacitors when being divided into two ultracapacitor cell, uses the Second Linking Method mode of a triple-pole switch.
In Fig. 9 a, Fig. 9 b, Fig. 9 c and Fig. 9 d, 1., 2. single-pole switch 3D-1's is its coil-end, 3., be 4. its contact output, other single-pole switchs 3D-2,3D-3,3D-4,3D-5 are identical therewith with the mark of 3D-6, very 1. ultracapacitor cell (2-11) just hold, (2-11) 2. negative pole for hold, and ultracapacitor cell (2-12) is identical therewith with the mark of (2-13); 1., 2. triple-pole switch 3s-1's is its coil-end, 3., 4., 5., 6., 7. and is 8. the output of its three pole contact, and identical, E, F are triple-pole switch control end to the mark of 3s-2 therewith.
Fig. 9 a is that three ultracapacitor cell adopt the first mode of connection figure of single-pole switch, wherein, 1. the end of ultracapacitor cell (2-11) connects the 3. end of bank of super capacitors charging and output (A) and single-pole switch 3D-3 respectively, 4. the end of 3D-3 connects the 1. end of ultracapacitor cell (2-12) respectively, 4. the end of 3. end and the single-pole switch 3D-2 of single-pole switch 3D-6, 3. the end of 3D-2 is connected with the 3. end of single-pole switch 3D-1, 3. 3D-1 is connected with the 2. end of ultracapacitor cell (2-11), 4. the end of single-pole switch 3D-1 respectively with the 2. end of ultracapacitor cell (2-12), 3. the end of single-pole switch 3D-4 and 3D-5 connects, 4. the end of single-pole switch 3D-6 connects the 4. end of 1. end and the single-pole switch 3D-5 of ultracapacitor cell (2-13) respectively, 4. the end of single-pole switch 3D-4 connects the 2. end of ultracapacitor cell (2-13), (2-13) 2. end connects bank of super capacitors charging and output (B).Single-pole switch 3D-1,3D-2,3D-3,3D-4,3D-5 link together with the 1. end of 3D-6 and are connected single-pole switch control end (C), and single-pole switch 3D-1,3D-2,3D-3,3D-4,3D-5 link together with the 2. end of 3D-6 and be connected single-pole switch control end (D).This is bank of super capacitors when being divided into three ultracapacitor cell, uses the parallel connection of three ultracapacitor cell of the first mode of connection of 6 single-pole switchs.
Fig. 9 b is that three ultracapacitor cell adopt single-pole switch Second Linking Method mode figure, wherein, 1. the 3. end holding 3. end, the 3D-2 connecting single-pole switch 3D-3 respectively of ultracapacitor cell (2-11), 4. 2. the holding of the end of 3D-2 and ultracapacitor cell (2-12), single-pole switch 3D-1 4. hold and the 3. end of single-pole switch 3D-4 is connected, 3. the end of single-pole switch 3D-1 connects the 2. end of ultracapacitor cell (2-11), and the 2. end of (2-11) connects bank of super capacitors charging and output (B).4. the end of single-pole switch 3D-4 is connected with the 4. end of single-pole switch 3D-5 and the 2. end of ultracapacitor cell (2-13), 4. 1. the holding of the end of single-pole switch 3D-3 and ultracapacitor cell (2-12), single-pole switch 3D-6 3. hold and the 3. end of 3D-5 is connected, 4. the end of single-pole switch 3D-6 connects the 1. end of ultracapacitor cell (2-13), and the 1. end of (2-13) connects bank of super capacitors charging and output (A).Single-pole switch 3D-1,3D-2,3D-3,3D-4,3D-5 link together with the 1. end of 3D-6 and are connected single-pole switch control end (C), and single-pole switch 3D-1,3D-2,3D-3,3D-4,3D-5 link together with the 2. end of 3D-6 and be connected single-pole switch control end (D).This is bank of super capacitors when being divided into three ultracapacitor cell, uses the parallel connection of three ultracapacitor cell of the Second Linking Method mode of 6 single-pole switchs.
Fig. 9 c is the first mode of connection figure that three ultracapacitor cell adopt triple-pole switch, 1. the end of ultracapacitor cell (2-11) is connected with the 3. end of triple-pole switch 3S-1, (2-11) 1. end connects bank of super capacitors charging and output (A), 4. the end of 3S-1 6. hold with it respectively and ultracapacitor cell (2-12) 1. and the 3. end of 3S-2 be connected, 4. the end of 3S-2 6. holds with it and the 1. end of ultracapacitor cell (2-13) is connected, 2. end and the triple-pole switch 3S-1 of ultracapacitor cell (2-11) are 5., 7. connection is held, 2. the end of the 8. end of 3S-1 and ultracapacitor cell (2-12), 3S-2 5., 7. connection is held, 2. the end of the 8. connection (2-13) of 3S-2, (2-13) 2. end connects level
Capacitor banks charging is connected triple-pole switch control end (E) with the 1. end of output (B) 3S-1,3S-2,2. the end of 3S-1,3S-2 connects triple-pole switch control end (F), this is bank of super capacitors when being divided into three ultracapacitor cell, uses the parallel connection of the first mode of connection of two triple-pole switches.
Fig. 9 d is that three ultracapacitor cell adopt triple-pole switch Second Linking Method mode figure, 1. the end of ultracapacitor cell (2-11) and the 3. end of triple-pole switch 3S-1,5. hold and be connected, (2-11) 2. end connects the 7. end of 3S-1 and connects ultracapacitor charging and output (B), 4. the end of 3S-1 and ultracapacitor cell (2-12) 1. hold and 3. and 5. holding of 3S-2 is connected, 4. the end of 3S-2 is connected with the 1. end of ultracapacitor cell (2-13), the charging of 1. termination ultracapacitor and the output (A) of (2-13).3S-1 8., 6., the 7. end of 3S-2 2. held of ultracapacitor cell (2-12) links together, (2. end, 6., 8. the holding of 3S-2 of 2-13 connect together ultracapacitor cell, 1. the end of the 4. connection (2-13) of 3S-2, the 1. end of (2-13) connects ultracapacitor charging and output (A).1. the end of 3S-1,3S-2 connects triple-pole switch control end (E), 2. the end of 3S-1,3S-2 connects triple-pole switch control end (F), this is bank of super capacitors when being divided into three ultracapacitor cell, uses the Second Linking Method mode parallel connection of two triple-pole switches.
Claims (6)
1. reduce the device of super capacitor discharge voltage lower limit, by bank of super capacitors, ultracapacitor cell connected mode converter, motor, in the driving system for electric vehicles of electric machine controller composition, charger, bank of super capacitors, ultracapacitor cell connected mode converter, electric machine controller, be electrically connected between ultracapacitor cell control module and motor, it is characterized in that: bank of super capacitors is divided into some ultracapacitor cell, ultracapacitor cell connected mode converter can be made up of single-pole switch or multiple-pole switch, charger can charge to bank of super capacitors, it is inner or outside that ultracapacitor cell control module can be arranged on electric machine controller.
2. reduce the device of super capacitor electric discharge lower limit according to claim 1, it is characterized in that: motor vehicle bank of super capacitors used is divided into 2,3 or 4 supercapacitive cell equably according to its total capacitance, the capacitance of each supercapacitive cell, rated voltage and internal resistance are identical.
3. reduce the device of super capacitor discharge voltage lower limit according to claim 2, it is characterized in that: the State Transferring being realized the parallel connection of ultracapacitor cell, series connection or series and parallel by ultracapacitor cell connected mode converter, ultracapacitor cell connected mode converter can be made up of single-pole switch, triple-pole switch or sextupole switch, 2,3 or have two kinds of connected modes respectively between 4 supercapacitive cell and ultracapacitor cell connected mode converter.
4. reduce the device of super capacitor discharge voltage lower limit according to claim 3, it is characterized in that: when the converter action of ultracapacitor connected mode, electric machine controller is zero to the output of motor, the action of ultracapacitor connected mode converter completes, and electric machine controller recovers the output to motor.
5. reduce the device of super capacitor discharge voltage lower limit according to claim 3, it is characterized in that: when the voltage of ultracapacitor cell is at rated value or in range of set value, all ultracapacitor cell are connected in parallel, when ultracapacitor cell voltages is lower than set point, all capacitor units are connected or are gone here and there and Hybrid connections.
6. reduce the device of super capacitor discharge voltage lower limit according to claim 1, it is characterized in that: when charger charges to bank of super capacitors, all ultracapacitor cell are in parallel connection.
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| CN201520010606.3U CN204681109U (en) | 2015-01-01 | 2015-01-01 | Reduce the device of super capacitor discharge voltage lower limit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720639A (en) * | 2016-03-30 | 2016-06-29 | 北京交通大学 | Super-capacitor-based parallel mode and series mode switching circuit |
| CN112216883A (en) * | 2020-09-28 | 2021-01-12 | 长安大学 | Lithium battery equalization method, system, equipment and storage medium |
| CN112793462A (en) * | 2021-01-04 | 2021-05-14 | 东风汽车股份有限公司 | Rapid discharge system for all-in-one controller of pure electric vehicle |
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2015
- 2015-01-01 CN CN201520010606.3U patent/CN204681109U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720639A (en) * | 2016-03-30 | 2016-06-29 | 北京交通大学 | Super-capacitor-based parallel mode and series mode switching circuit |
| CN112216883A (en) * | 2020-09-28 | 2021-01-12 | 长安大学 | Lithium battery equalization method, system, equipment and storage medium |
| CN112216883B (en) * | 2020-09-28 | 2022-02-22 | 长安大学 | Lithium battery equalization method, system, equipment and storage medium |
| CN112793462A (en) * | 2021-01-04 | 2021-05-14 | 东风汽车股份有限公司 | Rapid discharge system for all-in-one controller of pure electric vehicle |
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