CN205509625U - Supercapacitor unit with from matcing function - Google Patents
Supercapacitor unit with from matcing function Download PDFInfo
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- CN205509625U CN205509625U CN201620154873.2U CN201620154873U CN205509625U CN 205509625 U CN205509625 U CN 205509625U CN 201620154873 U CN201620154873 U CN 201620154873U CN 205509625 U CN205509625 U CN 205509625U
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Abstract
The utility model discloses a supercapacitor unit with from matcing function, including the ultracapacitor system body to ally oneself with the charge -discharge return circuit and match the controller certainly, pass through electron line carrier communication from matcing the controller, acquire the work information of ultracapacitor system system in real time, and then calculate the free optimum working parameter of ultracapacitor system to the working curve in the parallelly connected charge -discharge return circuit of control, the supercapacitor unit of other series connection keeps unanimous basically in the external characteristics that makes the supercapacitor unit that changes and the system, and then the reliability and the life of optimization supercapacitor unit and ultracapacitor system system.
Description
Technical field
This utility model relates to super capacitor system, is specifically related to a kind of ultracapacitor monomer with Self Matching function.
Background technology
In recent years, environmental crisis is increasingly sharpened, and atmospheric pollution has had a strong impact on the life of people；Therefore promote new-energy automobile to have become as national governments and improve a big important means of environmental problem；And national regulation need to provide be not less than 5 years or the quality guarantee of 100,000 kilometers for the electrokinetic cell of new-energy automobile, motor, the key components and parts such as automatically controlled.
Nowadays, it is limited to problem, accumulator and the lithium batteries such as operation principle, material, technique be difficult to meet 5 years or the quality guarantee of 100,000 kilometers；Compared to conventional batteries technology, ultracapacitor has the technical characterstic such as length in service life, big, the work problem wide ranges of energy density and is applied at automotive field；Ultracapacitor is a kind of between traditional capacitor and battery, has the power supply of property, relies primarily on electric double layer and Redox pseudocapacitance.Electric charge storage electric energy；But there is not chemical reaction in the process in its energy storage, this thermal energy storage process is reversible, also just because of this ultracapacitor can be hundreds thousand of secondary with repeated charge, its ultimate principle is the same with the double layer capacitor of other kind, is all the capacity utilizing the double electrical layers of activated carbon porous electrode and electrolyte composition to obtain super large.
But, after ultracapacitor monomer composition energy-storage system, the unit for electrical property parameters such as the capacitance of ultracapacitor monomer, internal resistance, leak resistance presents distribution character；If there is premature failure phenomenon because of improper use in one of them the capacitor monomer in the bank of super capacitors of series connection, the situations such as the capacitance of this capacitor will occur capacitor's capacity to reduce, leakage current increase, and then affect the normal work of whole system.
In order to ensure the permanent reliability service of energy storage device energy, it is necessary to the capacitor lost efficacy is replaced；Replace inefficacy capacitor according to brand-new ultracapacitor monomer, then there will be following situation: the leakage current of new ultracapacitor monomer Cn can be significantly lower than the leakage current of other ultracapacitor；Therefore, after energy storage device uses, the voltage of new ultracapacitor monomer Cn will be significantly higher than that other ultracapacitor monomer；The correlation theory of ultracapacitor shows, the voltage of capacitor monomer often improves 0.1V, service life reduction half；Therefore, new monomer may occur the situation of premature failure once again.
The premature failure problem of initiation is not mated for capacitor parameters, the while that common technology means being to guarantee capacitor conforming by controlling of production process, before product export, carry out capacitor parameters coupling, capacitor consistent for electrical property is connected into ultracapacitor module.
But, when the method is applied to the replacement of single inefficacy capacitor monomer, it is necessary first to the ageing parameter of other ultracapacitor in acquisition group；Then according to above-mentioned parameter, the parameter of required ultracapacitor monomer is calculated；Finally, select, from existing ultracapacitor monomer, the capacitor matched, if parameter mismatch is serious, then need according to one capacitor of parameter design.There is following problems in the method: means of testing is complicated.In order to obtain the parameter of each capacitor in series capacitor, need to dismantle whole super capacitor system, return factory, measure；And maintenance cycle is long.The weight of super capacitor system is relatively big, if desired returns factory's test parameter, may bring the problem that maintenance cycle is grown partially；And production cost is high；According to ageing parameter, the cost of one ultracapacitor of customization is the highest, and technology difficulty is big.
Utility model content
The ultracapacitor monomer with Self Matching function of the capacitor failure problem that a kind of capacitor parameters mismatch existed when can solve to change single ultracapacitor monomer that provides this utility model causes.
This utility model is achieved through the following technical solutions: a kind of ultracapacitor monomer with Self Matching function, including ultracapacitor body, Self Matching controller, parallel charge-discharge loop；Described ultracapacitor body is connected with parallel charge-discharge loop, and described parallel charge-discharge loop connects Self Matching controller；Described Self Matching controller includes computing module and telecommunication circuit, and described computing module is used for receiving and calculating the capacitance of each ultracapacitor in system operation information and system and leakage current rate and control parallel charge-discharge loop；Described telecommunication circuit is used for power line carrier communication；Described parallel charge-discharge loop is for changing the external electrical characteristic of ultracapacitor；Described parallel charge-discharge loop includes some resistance and some switches, for energy consumption type discharge loop；Described resistance is power resistor；Described parallel charge-discharge loop is the energy transfer charging and discharging circuit of bidirectional power converter composition.
A kind of Self Matching method of the ultracapacitor monomer with Self Matching function, it is characterized in that step is as follows: A) computing module receives the information of system operation by the electric wire carrier communication of telecommunication circuit from energy-storage system, obtains capacitance and the leakage current rate of each ultracapacitor monomer in current system；
B) computing module is calculated the total capacitance value Ct of system and total equivalent parallel resistance Rp of system by capacitance and the leakage current rate of each ultracapacitor monomer；
C) calculated total equivalent parallel resistance Rp divided by total capacitance capacitance Ct thus is obtained proportionality coefficient k；
D) nominal capacitance value Cs of ultracapacitor monomer is multiplied by proportionality coefficient k thus obtains target Equivalent parallel resistance Rd；
The equivalent resistance Rs of the super capacitor monomer after E) target Equivalent parallel resistance Rd being deducted replacement thus obtain the equivalent discharge resistance Rdp in parallel discharge loop；
F) the equivalent discharge resistance Rdp according to parallel discharge loop is calculated switching tube dutycycle d of controlled discharge unit, and the voltage being adjusted the ultracapacitor monomer that the switching tube dutycycle in parallel discharge loop makes the working voltage of the ultracapacitor monomer after replacing can connect with other by calculated switching tube dutycycle d keeps consistent.
This utility model integrated super capacitor body, parallel charge-discharge loop and Self Matching controller；Self Matching controller passes through electric wire carrier communication, obtain the job information of super capacitor system in real time, and then calculate the optimum running parameter of ultracapacitor monomer, thus control the working curve in parallel charge-discharge loop, the external characteristics making the ultracapacitor monomer of replacing keeps basically identical with the ultracapacitor monomer that in system, other is connected, and then optimizes ultracapacitor monomer and the reliability of super capacitor system and service life thereof.
Of the present utility model have the beneficial effect that 1) simplify the maintenance process of ultracapacitor, shorten maintenance time, by Self Matching function, it is achieved the directly replacing of inefficacy ultracapacitor monomer, it is not necessary to depot repair；2) realizing the real-time monitoring of ultracapacitor, ultracapacitor monomer arranges controller can detect the duty of ultracapacitor monomer in real time, and by the telecommunication circuit transmission data in controller, the remotely monitoring for system provides basis；3) Self Matching controller and parallel charge-discharge loop being integrated in ultracapacitor monomer, compact structure is simple, beneficially system integration；4) controlled by Self Matching so that the voltage of the ultracapacitor monomer that the working voltage of ultracapacitor monomer is connected with other keeps basically identical, it is to avoid the service life caused because running voltage is higher declines problem.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is frame diagram of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings with detailed description of the invention, this utility model is further described.
Seeing Fig. 1 to Fig. 2, a kind of ultracapacitor monomer with Self Matching function, including ultracapacitor body, Self Matching controller, parallel charge-discharge loop；Described ultracapacitor body is connected with parallel charge-discharge loop, and described parallel charge-discharge loop connects Self Matching controller；Described Self Matching controller includes computing module and telecommunication circuit, and described computing module is used for receiving and calculating the capacitance of each ultracapacitor in system operation information and system and leakage current rate and control parallel charge-discharge loop；Described telecommunication circuit is used for power line carrier communication；Described parallel charge-discharge loop is for changing the external electrical characteristic of ultracapacitor；Described ultracapacitor body is double layer capacitor；Described parallel charge-discharge loop includes some resistance and some switches, for energy consumption type discharge loop；Described resistance is power resistor；Described parallel charge-discharge loop is the energy transfer charging and discharging circuit of bidirectional power converter composition.
A kind of Self Matching method of the ultracapacitor monomer with Self Matching function, it is characterized in that step is as follows: A) computing module receives the information of system operation by the electric wire carrier communication of telecommunication circuit from energy-storage system, obtains capacitance and the leakage current rate of each ultracapacitor monomer in current system；
B) computing module is calculated the total capacitance value Ct of system and total equivalent parallel resistance Rp of system by capacitance and the leakage current rate of each ultracapacitor monomer；
C) calculated total equivalent parallel resistance Rp divided by total capacitance capacitance Ct thus is obtained proportionality coefficient k；
D) nominal capacitance value Cs of ultracapacitor monomer is multiplied by proportionality coefficient k thus obtains target Equivalent parallel resistance Rd；
The equivalent resistance Rs of the super capacitor monomer after E) target Equivalent parallel resistance Rd being deducted replacement thus obtain the equivalent discharge resistance Rdp in parallel discharge loop；
F) the equivalent discharge resistance Rdp according to parallel discharge loop is calculated switching tube dutycycle d of controlled discharge unit, and the voltage being adjusted the ultracapacitor monomer that the switching tube dutycycle in parallel discharge loop makes the working voltage of the ultracapacitor monomer after replacing can connect with other by calculated switching tube dutycycle d keeps consistent.
In present embodiment, described Self Matching controller, including arithmetical unit and telecommunication circuit；Arithmetical unit passes through power line carrier communication, receives system operation information, obtain capacitance and the leakage current rate of each ultracapacitor in current system from energy-storage system；Through controlling computing, obtain the leakage target speed of this ultracapacitor, and control corresponding parallel charge-discharge loop；Finally, controller is by the communication bus of current capacitor operation information transmission to system.
In present embodiment, described parallel charge-discharge loop, can be the energy consumption type discharge loop of power resistor and switch composition, or the energy transfer charging and discharging circuit of bidirectional power converter composition；Described parallel charge-discharge loop can change the external electrical characteristic of ultracapacitor；Described ultracapacitor body is double layer capacitor.
In present embodiment, described parallel connection fully electricity loop is controlled charging and discharging circuit in parallel, also includes controlled discharge unit.
In present embodiment, the Self Matching method of ultracapacitor monomer is to pass through power line carrier communication arithmetical unit, receives system operation information, obtain capacitance and the leakage current rate of each ultracapacitor in current system from energy-storage system；Thus calculate the total capacitance value Ct of system and total equivalent parallel resistance Rp of system；By total equivalent parallel resistance Rp of obtaining divided by total capacitance capacitance Ct, obtain proportionality coefficient k；Nominal capacitance value Cs of monomer is multiplied by k, obtains target Equivalent parallel resistance Rd；Target Equivalent parallel resistance Rd is deducted the equivalent resistance Rs of new monomer, obtains the equivalent discharge resistance Rdp in parallel discharge loop；According to the parallel equivalent discharge resistance Rdp obtained, anti-switching tube dutycycle d pushing away controlled discharge unit；Repeat above-mentioned circulation, constantly adjust the external electrical characteristic of capacitor monomer, play the Self Matching learning capacity of ultracapacitor of the present utility model, finally may insure that the external electrical characteristic of ultracapacitor monomer is consistent with other ultracapacitor.
In present embodiment, there is the ultracapacitor monomer of Self Matching function, external electrical operating characteristic can be adjusted, it is effectively matched existing super capacitor system, thus improve the working life of monomer, strengthen the reliability of super capacitor system, optimize the service life of super capacitor system on the whole.
Protection domain of the present utility model includes but not limited to embodiment of above; protection domain of the present utility model is as the criterion with claims, replacement that any those skilled in the art making this technology is readily apparent that, deforms, improves and each fall within protection domain of the present utility model.
Claims (4)
1. a ultracapacitor monomer with Self Matching function, it is characterised in that: include ultracapacitor body, Self Matching controller, parallel charge-discharge loop；Described ultracapacitor body is connected with parallel charge-discharge loop, and described parallel charge-discharge loop connects Self Matching controller；Described Self Matching controller includes computing module and telecommunication circuit, and described computing module is used for receiving and calculating the capacitance of each ultracapacitor in system operation information and system and leakage current rate and control parallel charge-discharge loop；Described telecommunication circuit is used for power line carrier communication, and arithmetical unit passes through power line carrier communication, receives system operation information, obtain capacitance and the leakage current rate of each ultracapacitor in current system from energy-storage system；Described parallel charge-discharge loop is for changing the external electrical characteristic of ultracapacitor.
A kind of ultracapacitor monomer with Self Matching function the most according to claim 1, it is characterised in that: described parallel charge-discharge loop includes some resistance and some switches, for energy consumption type discharge loop.
A kind of ultracapacitor monomer with Self Matching function the most according to claim 2, it is characterised in that: described resistance is power resistor.
A kind of ultracapacitor monomer with Self Matching function the most according to claim 1, it is characterised in that: described parallel charge-discharge loop is the energy transfer charging and discharging circuit of bidirectional power converter composition.
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| CN201620154873.2U CN205509625U (en) | 2016-03-01 | 2016-03-01 | Supercapacitor unit with from matcing function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111095454A (en) * | 2017-09-07 | 2020-05-01 | 阿维科斯公司 | Supercapacitor module with matched supercapacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111095454A (en) * | 2017-09-07 | 2020-05-01 | 阿维科斯公司 | Supercapacitor module with matched supercapacitor |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ruan Dianbo Inventor after: Cui Wenfeng Inventor after: Fu Guansheng Inventor after: Hong Guang Inventor after: Song Wenquan Inventor after: Jiang Daiping Inventor before: Cui Wenfeng Inventor before: Fu Guansheng Inventor before: Hong Guang Inventor before: Song Wenquan Inventor before: Jiang Daiping |
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| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170331 Address after: 315000 Zhejiang city of Ningbo province Yinzhou District Wuxiang No. 552 West Road Patentee after: NINGBO CRRC NEW ENERGY TECHNOLOGY CO., LTD. Address before: 315033 Changyang Road, Zhejiang, China, No. 866, No. Patentee before: The north of the Changjiang River, Ningbo City nine sides and flourish Electric Applicance Co., Ltd |
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| TR01 | Transfer of patent right |