CN105811537A - Heavy current balance control system for super capacitors - Google Patents
Heavy current balance control system for super capacitors Download PDFInfo
- Publication number
- CN105811537A CN105811537A CN201610337675.4A CN201610337675A CN105811537A CN 105811537 A CN105811537 A CN 105811537A CN 201610337675 A CN201610337675 A CN 201610337675A CN 105811537 A CN105811537 A CN 105811537A
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- Prior art keywords
- super capacitor
- super
- catalyst
- heavy
- capacitor
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- 239000003990 capacitor Substances 0.000 title claims abstract description 136
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 239000003054 catalyst Substances 0.000 claims description 33
- 239000000178 monomer Substances 0.000 claims description 12
- 239000011449 brick Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000011159 matrix material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
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- H02J7/0026—
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a heavy current balance control system for super capacitors. The heavy current balance control system for the super capacitors comprises at least two super capacitors, first contactors, second contactors, a heavy current discharge resistor, a super capacitor voltage detection module, a single chip microcomputer controller and a protection device, wherein the at least two super capacitors are connected in series; the first contactors and the second contactors are equal to the super capacitors in quantity; the single chip microcomputer controller obtains various super capacitor voltages through the super capacitor voltage detection module; and when the balance degree between the super capacitors is greater than a set threshold, the super capacitor with the maximum voltage is discharged through the heavy current discharge resistor according to the set time. With the single chip microcomputer as a main balance controller, the cost of the system is reduced; in a contactor matrix manner, heavy current discharging of the super capacitors is achieved to improve the balance reliability; and heavy current discharging is achieved. The system is simple to operate, safe, reliable and good in balance effect.
Description
Technical field
The invention belongs to the balancing technique field of super capacitor, control system particularly to a kind of big current balance of super capacitor.
Background technology
The development of fuel-engined vehicle causes the continuous intensification of global energy crisis, the continuous minimizing of petroleum resources, exacerbates the harm of temperature liter and atmospheric pollution simultaneously.Most countries government and car industry are all it is well recognized that energy-saving and emission-reduction are the directions of future automobile industry development in the world, and Development of EV will be the optimum method solving this difficult point.It is low that electric automobile has noise, emission-free discharge, environmental friendliness, and the thermal efficiency is high, discharges low, and recoverable improves the advantages such as energy resource structure.Each automobile production enterprise just actively researches and develops electric automobile, and Chinese Government is also actively promoting electric automobile.Electric automobile can be roughly divided into pure electric automobile, hybrid-electric car and FC-EV according to power source.These electric automobiles can configure super capacitor as energy-storage travelling wave tube, particularly in pure electric automobile extensive use many strings super capacitor as power source.
Super capacitor is a kind of novel energy-storing element utilizing electric double layer principle directly to store electric energy, its range of capacity is generally from several farads to tens thousand of farads, there is very high power density, and charge/discharge rates is very fast, it is possible in several seconds, arrive fully charged state from full discharge condition.
Due to the individuality that each monomer of super capacitor group is all different, in production technology, the factor such as production time causes that super capacitor performance index exists difference.Although along with the continuous progress of technology, before dispatching from the factory, the difference between super capacitor inside constantly reduces, but discordance faint in use procedure constantly can be amplified along with use condition.Such discordance is by increasing with design load deviation for the capacity causing whole group of super capacitor.In charging process, first the monomer that capacity is little will be filled, and cause that the super capacitor of other capacity can not obtain enough capacity；In discharge process, first the monomer that capacity is little is discharged into blanking voltage, and stopping is discharged by whole group of super capacitor.The existence of such problem of inconsistency, active volume and service life of causing super capacitor group etc., aspect was far away from monomer super capacitor, and increased difficulty super capacitor being managed and controlling.Practice have shown that, significantly reduce when the consistency problem of super capacitor group develops into indivedual super capacitor generation capacity, when internal resistance such as significantly improves at the situation, the performance of whole group of super capacitor can at short time high progression so that whole super capacitor group is scrapped.
In order to solve super capacitor group problem of inconsistency, there has been proposed the balancing technique of super capacitor.The voltage to the effect that detecting super capacitor group of balanced management, the parameter such as electric current, these parameters are identified, analyze the concordance of super capacitor, by controlling device, the monomer of energy height is discharged, make the state of each monomer reach unanimity.The consistency problem of super capacitor group can be improved by effective Balance route strategy and equalizing circuit, it is possible to extend the life-span of super capacitor group, reduce the maintenance cost of super capacitor group, make the electric automobile that safe and efficient intelligence uses put it over.
Equalization methods general at present is that each super capacitor is configured a discharge resistance, by checking the voltage of each monomer, the monomer that monomer is higher is discharged by the discharge resistance of oneself correspondence.When super capacitor capacity is relatively larger, this discharge resistance discharge current would become hard to meet the requirement of fast uniform.If discharge resistance power corresponding for each super capacitor is become big, its volume and heat radiation are by the face of new challenge, the method that the method for existing employing resistance equilibrium seldom has big current balance.
Summary of the invention
It is an object of the invention to provide a kind of big current balance of super capacitor and control system.
The present invention is achieved in that a kind of big current balance of super capacitor controls system; including super capacitor group, heavy-current discharge resistance, super-capacitor voltage detection module, singlechip controller and protection device; wherein super capacitor group includes the super capacitor of at least two series connection, wherein all corresponding first catalyst of each super capacitor and second catalyst；The positive pole of super capacitor is connected to heavy-current discharge resistance the first end by the first catalyst of its correspondence, and the negative pole of super capacitor is connected to heavy-current discharge resistance the second end by the second catalyst of its correspondence；Super capacitor positive pole can be connected with super-capacitor voltage detection module with negative pole with being energized；Singlechip controller includes CAN terminal and control terminal, CAN terminal is connected with super-capacitor voltage detection module, the control terminal of control terminal and the first catalyst and the second catalyst connects, when controlling the first catalyst corresponding to super capacitor and the conducting of the second catalyst when singlechip controller, super capacitor and heavy-current discharge resistor coupled in parallel, synchronization only one of which super capacitor and heavy-current discharge resistor coupled in parallel；Protection device includes D.C. contactor and resettable fuse, D.C. contactor and resettable fuse and is cascaded and is followed by the negative pole of super capacitor group.
Described super capacitor is basic supercapacitive cell and monomer super capacitor or the super capacitor brick composed in parallel by multiple basic supercapacitive cell.
The big current balance of super capacitor of the present invention controls system and includes the charging and discharging balance device of super capacitor, super capacitor system is made effectively to be managed in charge and discharge process and balanced, to improve efficiency and the service life of super capacitor system, reduce the maintenance cost of super capacitor system；The present invention adopts single-chip microcomputer as primary equalization controller, reduces the cost of system, and adopts catalyst matrix-style, it is achieved the heavy-current discharge to super capacitor, to improve the reliability of equilibrium, and realizes heavy-current discharge；Native system is simple to operate, safe and reliable, and portfolio effect is good.
Accompanying drawing explanation
Fig. 1 is the structural representation that in the embodiment of the present invention, the big current balance of super capacitor controls system.
Fig. 2 is that in the embodiment of the present invention, the big current balance of super capacitor controls the balance control method flow chart in system charge and discharge process.
Detailed description of the invention
Embodiment:
Below in conjunction with accompanying drawing, the present invention is further described.
It is described below for disclosing the present invention so that those skilled in the art are capable of the present invention.Preferred embodiment in being described below is only used as citing, it may occur to persons skilled in the art that other apparent modification.The ultimate principle of the present invention defined in the following description can apply to other embodiments, deformation program, improvement project, equivalent and the other technologies scheme without departing from the spirit and scope of the present invention.
As shown in Figure 1; a kind of big current balance of super capacitor controls system; carry the high-power resistance of radiator including super capacitor group, heavy-current discharge resistance R(), super-capacitor voltage detection module, singlechip controller and protection device; wherein super capacitor group includes the super capacitor of at least two series connection, wherein all corresponding first catalyst of each super capacitor and second catalyst；The positive pole of super capacitor is connected to heavy-current discharge resistance the first end by the first catalyst of its correspondence, and the negative pole of super capacitor is connected to heavy-current discharge resistance the second end by the second catalyst of its correspondence；Super capacitor positive pole can be connected with super-capacitor voltage detection module with negative pole with being energized；Singlechip controller includes CAN terminal and control terminal, CAN terminal is connected with super-capacitor voltage detection module, the control terminal of control terminal and the first catalyst and the second catalyst connects, when controlling the first catalyst corresponding to super capacitor and the conducting of the second catalyst when singlechip controller, super capacitor is in parallel with heavy-current discharge resistance R, and synchronization only one of which super capacitor is in parallel with heavy-current discharge resistance R；Protection device includes D.C. contactor and resettable fuse, D.C. contactor and resettable fuse and is cascaded and is followed by the negative pole of super capacitor group.
Described super capacitor is basic supercapacitive cell and monomer super capacitor.
The balanced negative pole of object super capacitor 1 connects with the positive pole of balanced object super capacitor 2, the balanced negative pole of object super capacitor 2 connects with the positive pole of balanced object super capacitor 3, it is sequentially connected in series each balanced object super capacitor, until the balanced negative pole of object super capacitor N-1 connects with the positive pole of balanced object super capacitor N, all super capacitors are sequentially connected in series super capacitor group, in super capacitor group, the positive pole of the just extremely super capacitor group of balanced object super capacitor 1, the negative pole that negative pole is super capacitor group of balanced object super capacitor N.
The positive pole of each balanced object super capacitor is connected with first end of heavy-current discharge resistance R by the first corresponding catalyst, the negative pole of each balanced object super capacitor is connected with second end of heavy-current discharge resistance R by the second corresponding catalyst, is connected with the control terminal of singlechip controller after the control terminal K parallel connection of the first catalyst and the second catalyst.
The D1 terminal of each first catalyst connects with the positive pole of balanced object super capacitor, and D2 terminal is connected with first end of heavy-current discharge resistance R, and control terminal K is connected with the control terminal of singlechip controller.
The D1 terminal of each second catalyst connects with the negative pole of balanced object super capacitor, and D2 terminal is connected with second end of heavy-current discharge resistance R, and control terminal K is connected with the control terminal of singlechip controller.
Described super-capacitor voltage detection module can be connected with positive pole and the negative pole of super capacitor with being energized, for detecting the voltage of each super capacitor；It is connected with singlechip controller by CAN, sends the voltage signal detected to singlechip controller.
As in figure 2 it is shown, the big current balance of super capacitor in the present embodiment controls system and runs according to following steps:
A. singlechip controller communicates with super-capacitor voltage detection module, it is thus achieved that the voltage of each super capacitor.
B. singlechip controller is according to the N number of super-capacitor voltage obtained, and finds out the super capacitor that magnitude of voltage is maximum, and wherein N is be more than or equal to 2.
C. singlechip controller obtains the meansigma methods of all super-capacitor voltage.
D. jump into step e when the maximum super-capacitor voltage of magnitude of voltage and all super capacitor average voltage deviations set threshold values more than one, otherwise return to step a.
E. single-chip microcomputer is in parallel with heavy-current discharge resistance R by the super capacitor controlling the first catalyst corresponding to the maximum super capacitor of voltage and the second catalyst makes magnitude of voltage maximum, and super capacitor is discharged.
F. waiting the time T of setting, singlechip controller disconnects all contactless contactors by control terminal, and program returns step a.
Claims (1)
1. the big current balance of super capacitor controls system; it is characterized in that the big current balance of this super capacitor controls system and includes super capacitor group, heavy-current discharge resistance, super-capacitor voltage detection module, singlechip controller and protection device; wherein super capacitor group includes the super capacitor of at least two series connection, wherein all corresponding first catalyst of each super capacitor and second catalyst；The positive pole of super capacitor is connected to heavy-current discharge resistance the first end by the first catalyst of its correspondence, and the negative pole of super capacitor is connected to heavy-current discharge resistance the second end by the second catalyst of its correspondence；Super capacitor positive pole can be connected with super-capacitor voltage detection module with negative pole with being energized；Singlechip controller includes CAN terminal and control terminal, CAN terminal is connected with super-capacitor voltage detection module, the control terminal of control terminal and the first catalyst and the second catalyst connects, when controlling the first catalyst corresponding to super capacitor and the conducting of the second catalyst when singlechip controller, super capacitor and heavy-current discharge resistor coupled in parallel, synchronization only one of which super capacitor and heavy-current discharge resistor coupled in parallel；Protection device includes D.C. contactor and resettable fuse, D.C. contactor and resettable fuse and is cascaded and is followed by the negative pole of super capacitor group；
Described super capacitor is basic supercapacitive cell and monomer super capacitor or the super capacitor brick composed in parallel by multiple basic supercapacitive cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610337675.4A CN105811537A (en) | 2016-05-22 | 2016-05-22 | Heavy current balance control system for super capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610337675.4A CN105811537A (en) | 2016-05-22 | 2016-05-22 | Heavy current balance control system for super capacitors |
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| Publication Number | Publication Date |
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| CN105811537A true CN105811537A (en) | 2016-07-27 |
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| CN201610337675.4A Pending CN105811537A (en) | 2016-05-22 | 2016-05-22 | Heavy current balance control system for super capacitors |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100047A (en) * | 2016-07-19 | 2016-11-09 | 桂林理工大学 | Super capacitor big current balance DSP control system |
| CN106655336A (en) * | 2016-11-11 | 2017-05-10 | 桂林理工大学 | Super-capacitor large-current equalization FPGA control system |
| CN106655337A (en) * | 2016-11-11 | 2017-05-10 | 桂林理工大学 | Super capacitor high current balancing ARM control system |
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| CN1607708A (en) * | 2003-10-13 | 2005-04-20 | 上海燃料电池汽车动力***有限公司 | Equalizing circuit for lithium ion power accumulator |
| US20120161715A1 (en) * | 2010-12-22 | 2012-06-28 | Jong-Doo Park | Cell balancing circuit, method of driving the same, and battery management system that includes the cell balancing circuit |
| CN102569926A (en) * | 2010-12-31 | 2012-07-11 | 欣旺达电子股份有限公司 | Automobile lithium battery charge balancing method and balancing system |
| CN103887853A (en) * | 2014-03-18 | 2014-06-25 | 浙江大学城市学院 | Balance control method of lithium-ion battery set |
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2016
- 2016-05-22 CN CN201610337675.4A patent/CN105811537A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1607708A (en) * | 2003-10-13 | 2005-04-20 | 上海燃料电池汽车动力***有限公司 | Equalizing circuit for lithium ion power accumulator |
| US20120161715A1 (en) * | 2010-12-22 | 2012-06-28 | Jong-Doo Park | Cell balancing circuit, method of driving the same, and battery management system that includes the cell balancing circuit |
| CN102569926A (en) * | 2010-12-31 | 2012-07-11 | 欣旺达电子股份有限公司 | Automobile lithium battery charge balancing method and balancing system |
| CN103887853A (en) * | 2014-03-18 | 2014-06-25 | 浙江大学城市学院 | Balance control method of lithium-ion battery set |
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| 何仕品 等: "锂离子电池管理***及其均衡模块的设计与研究", 《汽车工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100047A (en) * | 2016-07-19 | 2016-11-09 | 桂林理工大学 | Super capacitor big current balance DSP control system |
| CN106655336A (en) * | 2016-11-11 | 2017-05-10 | 桂林理工大学 | Super-capacitor large-current equalization FPGA control system |
| CN106655337A (en) * | 2016-11-11 | 2017-05-10 | 桂林理工大学 | Super capacitor high current balancing ARM control system |
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Application publication date: 20160727 |
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