CN102403770A - Charging device and charging method of super capacitor - Google Patents
Charging device and charging method of super capacitor Download PDFInfo
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- CN102403770A CN102403770A CN2011104010329A CN201110401032A CN102403770A CN 102403770 A CN102403770 A CN 102403770A CN 2011104010329 A CN2011104010329 A CN 2011104010329A CN 201110401032 A CN201110401032 A CN 201110401032A CN 102403770 A CN102403770 A CN 102403770A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000003990 capacitor Substances 0.000 title abstract description 12
- 230000002459 sustained effect Effects 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 4
- 238000012797 qualification Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention relates to a charging device and a charging method of a super capacitor. The charging method comprises the following steps: a. in the initial charging stage, a soft start charging mode is used; b. when the product of the terminal voltage of the super capacitor and the maximum charging current which can be borne by the super capacitor is smaller than the maximum charging power which can be provided by a charging power supply, a current-limiting charging mode is used; c. when the product of the terminal voltage of the super capacitor and the maximum charging current which can be borne by the super capacitor is larger than or equal to the maximum charging power which can be provided by the charging power supply, a constant-power charging mode is used.
Description
Technical field
The present invention relates to ultracapacitor charging technique field, in particular a kind of ultracapacitor charging method and the ultracapacitor charging system that uses this method.
Background technology
How to use energy storage device raising power supply to load the efficient of energy to be provided is converter and current transformer design key points in the distributed generation system always.When energy from regenerative resource, during like photovoltaic cell or blower fan, the use of energy storage device can play level and smooth power, provide night important function such as energy source.
MPPT maximum power point tracking control is many through realizing with the DC/DC converter of photovoltaic cell or fan parallel-connection; But under this kind control mode, converter output DC bus-bar voltage can dynamic change in a scope, if directly use it to charge to ultracapacitor; Because output voltage can not be controlled; Cause when ultracapacitor terminal voltage and busbar voltage difference are big, like the charging initial stage, charging current is excessive; The power that on the ultracapacitor equivalent series resistance, consumes is big, so charge efficiency is very low.
Therefore, need under the different charging modes of quantitative analysis photovoltaic cell to the charge efficiency of ultracapacitor, thereby design suitable charging algorithm, and combine concrete charging system to realize.
Summary of the invention
Technical problem:The object of the present invention is to provide a kind of charging device and charging method of ultracapacitor, use ultracapacitor charging method disclosed by the invention that ultracapacitor is charged, can improve the charge efficiency of charge power supply ultracapacitor.
Technical scheme:The charging device of ultracapacitor of the present invention comprises:
Detecting unit comprises voltage sensor, current sensor, detects ultracapacitor C
LTerminal voltage, charging current and charge power supply maximum charge power;
Charge controlling chip comprises kernel, sampling holder, pulse width modulation module, general-purpose interface; Sampling holder in the charge controlling chip links to each other with detecting unit, according to detected voltage, electric current and performance number, calculates ultracapacitor C
LCharging current; The control end of switching device Q in the output termination DC chopper circuit of pulse width modulation module, the switching device Q in DC chopper circuit sends control command, and controls the break-make of short switch through general-purpose interface;
DC chopper circuit is by electric capacity of voltage regulation C
Bus, switching device Q, sustained diode, inductance L form, and is used to the charging current that obtains to set; The drain D of switching device Q in the DC chopper circuit is connected to the negative electrode and the inductance L of sustained diode, and the grid G of switching device Q is connected to pulse width modulation module, current-limiting resistance and ultracapacitor C
LSeries connection;
Current-limiting resistance is connected between the emitter and collector electrode of short switch, is used in charging incipient stage limit charging current; Short switch is relay, D.C. contactor or electronic switch, is used for short circuit current limitation resistance when the current-limiting charge mode begins.
Described switching device Q is the semiconductor switch pipe of electric power FET MOSFET, power transistor GTR or insulated gate bipolar transistor IGBT; Described sustained diode is Schottky diode or Ultrafast recovery diode.
The charging method of the charging device of ultracapacitor of the present invention is specially:
Be preset with first voltage threshold, second voltage threshold and tertiary voltage threshold value, and said first voltage threshold is less than second voltage threshold, second voltage threshold is less than the tertiary voltage threshold value;
A. in the charging incipient stage, use the soft start charging modes;
B. when the maximum charge power that the product of ultracapacitor terminal voltage and its maximum charging current that can bear can provide less than charge power supply, use current-limiting charge mode;
C. when the maximum charge power that the product of ultracapacitor terminal voltage and its maximum charging current that can bear can provide more than or equal to charge power supply, use permanent power charging modes.
As ultracapacitor C
LWhen voltage is lower than first voltage threshold, use the soft start charging modes; When ultracapacitor voltage is higher than first voltage threshold and is lower than second voltage threshold, use the current-limiting charge mode; When ultracapacitor voltage is higher than second voltage threshold and is lower than the tertiary voltage threshold value, use permanent power charging modes.
In step a, the soft start charging modes is through realizing with a current-limiting resistance of ultracapacitor series connection; In step b, the charging current of qualification is that the maximum charging current that ultracapacitor can bear multiply by 0.5 ~ 0.8; In step c, the reference value of charging current multiply by 0.8 ~ 0.9 acquisition by the maximum charge power of charge power supply and the difference of loss power.
Beneficial effect:Use the charging device and the charging method of ultracapacitor disclosed by the invention; Use ultracapacitor charging method disclosed by the invention that ultracapacitor is charged; Can improve the charge efficiency of charge power supply, promptly improve the ratio that the charge power supply rechargeable energy is converted into the ultracapacitor stored energy ultracapacitor.
Description of drawings
Fig. 1 is the flow chart of charging method of the present invention;
Fig. 2 is the topology diagram of charging system of the present invention.
Wherein have:
101: the soft start charging stage,
102: the current-limiting charge stage,
103: the permanent power charging stage,
201: detecting unit,
202: charge controlling chip,
203: DC chopper circuit,
204: current-limiting resistance,
205: short switch.
Embodiment
The invention discloses a kind of ultracapacitor charging system, comprising:
Detecting unit detects ultracapacitor terminal voltage, charging current, charge power supply maximum charge power;
Charge controlling chip links to each other with detecting unit, according to detected voltage, electric current and performance number, calculates the charging current to ultracapacitor, and the switching device in DC chopper circuit sends control command, and the break-make of control short switch;
DC chopper circuit is used to the charging current that obtains to set;
Current-limiting resistance is used for the limit charging current at charge step a;
Short switch is used for short circuit current limitation resistance when step b begins.
Wherein, DC chopper circuit is made up of switching device Q, sustained diode, inductance L.Described switching device Q is the semiconductor switch pipe of electric power FET MOSFET, power transistor GTR or insulated gate bipolar transistor IGBT.Described sustained diode is Schottky diode or Ultrafast recovery diode.
Short switch is relay, D.C. contactor or electronic switch.
The invention discloses a kind of method, may further comprise the steps the ultracapacitor charging:
A. in the charging incipient stage, use the soft start charging modes;
B. when the maximum charge power that the product of ultracapacitor terminal voltage and its maximum charging current that can bear can provide less than charge power supply, use current-limiting charge mode;
The maximum charge power that c. can provide more than or equal to charge power supply at the product of ultracapacitor terminal voltage and its maximum charging current that can bear, and the ultracapacitor terminal voltage is used permanent power charging modes when being lower than rated value.
Be preset with first voltage threshold, second voltage threshold and tertiary voltage threshold value, and first voltage threshold is less than second voltage threshold, second voltage threshold is less than the tertiary voltage threshold value.When super capacitor electrode forces down in first voltage threshold; Use step a charging modes, when ultracapacitor voltage is higher than first voltage threshold and is lower than second voltage threshold; Use step b charging modes; When ultracapacitor voltage is higher than second voltage threshold and is lower than the tertiary voltage threshold value, use step c charging modes.
In step a, the soft start charging modes is through realizing with a current-limiting resistance of ultracapacitor series connection.
In step b, the charging current of qualification is that the maximum charging current that ultracapacitor can bear multiply by a proportionality coefficient.
In step c, the reference value of charging current multiply by a proportionality coefficient acquisition by the maximum charge power of charge power supply and the difference of loss power.
Below in conjunction with accompanying drawing execution mode of the present invention and concrete operating process are explained, but protection scope of the present invention is not limited to following specifying.
Shown in Fig. 1 is the flow chart of the charging method of charging system of the present invention.Fig. 2 is a charging system of the present invention.This system is made up of detecting unit 201, charge controlling chip 202, DC chopper circuit 203, current-limiting resistance 204, short switch 205.Wherein, DC chopper circuit 203 is made up of switching device Q, sustained diode, inductance L.
Detecting unit 201 is used for acquisition testing ultracapacitor terminal voltage
v Sc, charging current
i Sc, charge power supply maximum charge power
p c, charge controlling chip 202 is responsible for the sampled value of processing and detecting unit 201, and and loss power
P Loss, maximum charging current
I Scmax, the DC chopper circuit minimum output voltage
V OminCommon calculating obtains charging system charge step of living in, and switching device Q and short switch 205 in the control DC chopper circuit 203.
The charging method of charging system of the present invention is divided into following steps:
Step 101: first voltage threshold is DC chopper circuit 203 minimum output voltages
V OminIn the ultracapacitor terminal voltage
v ScReach the DC chopper circuit minimum output voltage
V OminBefore, charge controlling chip 202 control short switches 205 break off, and this moment, the minimum duty cycle of using switching device Q to allow was charged to super capacitor, when the capacitor terminal voltage through current-limiting resistance 204
v ScEqual after first voltage threshold, charge controlling chip 202 control short switches 205 break off closed, and current-limiting resistance 204 is by short circuit, and step (1) finishes.
Step 102: the maximum charging current that charging system limits
I CmaxThe maximum charging current that can bear for ultracapacitor multiply by a proportionality coefficient (being generally 0.5 ~ 0.8), and second voltage threshold does
p c/
I Cmax, when the ultracapacitor terminal voltage
v ScWhen pressure was lower than second voltage threshold simultaneously above first voltage threshold, the charging current that charge controlling chip 202 control DC chopper circuits 203 produce was no more than the maximum charging current that charging system limits
I Cmax, when the capacitor terminal voltage
v ScEqual after second voltage threshold, step (2) finishes.
Step 103: the tertiary voltage threshold value is the rated voltage of ultracapacitor, when the ultracapacitor terminal voltage
v ScWhen pressure was lower than the tertiary voltage threshold value simultaneously above second voltage threshold, charging system was operated in permanent power charged state, and concrete mode is that detecting unit 201 is gathered the ultracapacitor charging currents
i ScAnd terminal voltage
v Sc, current charge power of the super capacitor that calculates and charge power supply maximum charge power
P cAnd loss power
P LossThe difference Δ
P, and multiply by a proportionality coefficient (being generally 0.8 ~ 0.9), as the controlled quentity controlled variable of DC chopper circuit 203 output currents, this controlled quentity controlled variable is by the control signal of switching device Q in charge controlling chip 202 processing and the generation DC chopper circuit 203, when the capacitor terminal voltage
v ScEqual after the tertiary voltage threshold value, step (3) finishes.
Claims (5)
1. the charging device of a ultracapacitor is characterized in that this device comprises:
Detecting unit (201) comprises voltage sensor, current sensor, detects ultracapacitor C
LTerminal voltage, charging current and charge power supply maximum charge power;
Charge controlling chip (202) comprises kernel, sampling holder, pulse width modulation module, general-purpose interface; Sampling holder in the charge controlling chip (202) links to each other with detecting unit, according to detected voltage, electric current and performance number, calculates ultracapacitor C
LCharging current; The control end of switching device Q in the output termination DC chopper circuit (203) of pulse width modulation module, the switching device Q in DC chopper circuit (203) sends control command, and controls the break-make of short switch (205) through general-purpose interface;
DC chopper circuit (203) is by electric capacity of voltage regulation C
Bus, switching device Q, sustained diode, inductance L form, and is used to the charging current that obtains to set; The drain D of switching device Q in the DC chopper circuit (203) is connected to the negative electrode and the inductance L of sustained diode, and the grid G of switching device Q is connected to pulse width modulation module, current-limiting resistance (204) and ultracapacitor C
LSeries connection;
Current-limiting resistance (204) is connected between the emitter and collector electrode of short switch (205), is used in charging incipient stage limit charging current; Short switch (205) is relay, D.C. contactor or electronic switch, is used for short circuit current limitation resistance (204) when the current-limiting charge mode begins.
2. the charging device of ultracapacitor according to claim 1, it is characterized in that: described switching device Q is the semiconductor switch pipe of electric power FET MOSFET, power transistor GTR or insulated gate bipolar transistor IGBT; Described sustained diode is Schottky diode or Ultrafast recovery diode.
3. the charging method of the charging device of a ultracapacitor as claimed in claim 1 is characterized in that this charging method is specially:
Be preset with first voltage threshold, second voltage threshold and tertiary voltage threshold value, and said first voltage threshold is less than second voltage threshold, second voltage threshold is less than the tertiary voltage threshold value;
A. in the charging incipient stage, use the soft start charging modes;
B. when the maximum charge power that the product of ultracapacitor terminal voltage and its maximum charging current that can bear can provide less than charge power supply, use current-limiting charge mode;
C. when the maximum charge power that the product of ultracapacitor terminal voltage and its maximum charging current that can bear can provide more than or equal to charge power supply, use permanent power charging modes.
4. the charging method of the charging device of ultracapacitor according to claim 3 is characterized in that: as ultracapacitor C
LWhen voltage is lower than first voltage threshold, use the soft start charging modes; When ultracapacitor voltage is higher than first voltage threshold and is lower than second voltage threshold, use the current-limiting charge mode; When ultracapacitor voltage is higher than second voltage threshold and is lower than the tertiary voltage threshold value, use permanent power charging modes.
5. the charging method of the charging device of ultracapacitor according to claim 3 is characterized in that: in step a, the soft start charging modes is through realizing with a current-limiting resistance of ultracapacitor series connection; In step b, the charging current of qualification is that the maximum charging current that ultracapacitor can bear multiply by 0.5 ~ 0.8; In step c, the reference value of charging current multiply by 0.8 ~ 0.9 acquisition by the maximum charge power of charge power supply and the difference of loss power.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104010329A CN102403770A (en) | 2011-12-07 | 2011-12-07 | Charging device and charging method of super capacitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104010329A CN102403770A (en) | 2011-12-07 | 2011-12-07 | Charging device and charging method of super capacitor |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684267A (en) * | 2012-05-17 | 2012-09-19 | 无锡富洪科技有限公司 | Charging method and charging device for supercapacitor |
| CN103457306A (en) * | 2012-06-05 | 2013-12-18 | 华为终端有限公司 | Charging device |
| CN104753154A (en) * | 2013-09-29 | 2015-07-01 | 沈阳融华新能源电气有限公司 | Initial charging device and method of energy storage system battery |
| WO2015176430A1 (en) * | 2014-05-19 | 2015-11-26 | 中兴通讯股份有限公司 | Charging control method and apparatus, terminal and computer storage medium |
| CN105513807A (en) * | 2015-12-29 | 2016-04-20 | 中国电子科技集团公司第十一研究所 | Energy-storing capacitor device and laser power supply |
| CN107255830A (en) * | 2017-07-14 | 2017-10-17 | 广州思宝健电子有限公司 | A kind of instantaneous and accumulative radiation detector of the utilization cellphone GPS display with radiation place |
| CN107579555A (en) * | 2017-08-21 | 2018-01-12 | 上海空间电源研究所 | Space high tension battery Soft Starting System and its method |
| CN110957795A (en) * | 2019-12-05 | 2020-04-03 | 深圳市洲明科技股份有限公司 | Charging circuit, charging device and display screen |
| CN110994716A (en) * | 2019-11-25 | 2020-04-10 | 上海稊米汽车科技有限公司 | Charging management method and system for automobile electronic super capacitor |
| CN113410884A (en) * | 2021-06-09 | 2021-09-17 | 广东小天才科技有限公司 | Charging method of wearable device, wearable device and storage medium |
| CN113901750A (en) * | 2021-09-29 | 2022-01-07 | 深圳市今朝时代股份有限公司 | Supercapacitor stored energy estimation method based on fractional calculus |
| CN115378057A (en) * | 2021-05-18 | 2022-11-22 | Oppo广东移动通信有限公司 | Wireless charging method, device and storage medium |
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| CN101633320A (en) * | 2009-08-24 | 2010-01-27 | 青岛易特优电子有限公司 | Storage device of regenerating brake energy of railway track |
| CN101924395A (en) * | 2010-08-19 | 2010-12-22 | 许继集团有限公司 | Charging method applicable to super capacitor of wind generating set pitch control system |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684267A (en) * | 2012-05-17 | 2012-09-19 | 无锡富洪科技有限公司 | Charging method and charging device for supercapacitor |
| CN103457306A (en) * | 2012-06-05 | 2013-12-18 | 华为终端有限公司 | Charging device |
| CN104753154A (en) * | 2013-09-29 | 2015-07-01 | 沈阳融华新能源电气有限公司 | Initial charging device and method of energy storage system battery |
| WO2015176430A1 (en) * | 2014-05-19 | 2015-11-26 | 中兴通讯股份有限公司 | Charging control method and apparatus, terminal and computer storage medium |
| EP3148038A4 (en) * | 2014-05-19 | 2017-03-29 | ZTE Corporation | Charging control method and apparatus, terminal and computer storage medium |
| EP3148038A1 (en) * | 2014-05-19 | 2017-03-29 | ZTE Corporation | Charging control method and apparatus, terminal and computer storage medium |
| CN105513807A (en) * | 2015-12-29 | 2016-04-20 | 中国电子科技集团公司第十一研究所 | Energy-storing capacitor device and laser power supply |
| CN107255830A (en) * | 2017-07-14 | 2017-10-17 | 广州思宝健电子有限公司 | A kind of instantaneous and accumulative radiation detector of the utilization cellphone GPS display with radiation place |
| CN107579555A (en) * | 2017-08-21 | 2018-01-12 | 上海空间电源研究所 | Space high tension battery Soft Starting System and its method |
| CN107579555B (en) * | 2017-08-21 | 2019-10-25 | 上海空间电源研究所 | Space high tension battery Soft Starting System and its method |
| CN110994716A (en) * | 2019-11-25 | 2020-04-10 | 上海稊米汽车科技有限公司 | Charging management method and system for automobile electronic super capacitor |
| WO2021104218A1 (en) * | 2019-11-25 | 2021-06-03 | 思源电气股份有限公司 | Charge management method and system for automobile electronic ultracapacitor |
| CN110994716B (en) * | 2019-11-25 | 2021-07-27 | 上海稊米汽车科技有限公司 | Charging management method and system for automobile electronic super capacitor |
| CN110957795A (en) * | 2019-12-05 | 2020-04-03 | 深圳市洲明科技股份有限公司 | Charging circuit, charging device and display screen |
| CN115378057A (en) * | 2021-05-18 | 2022-11-22 | Oppo广东移动通信有限公司 | Wireless charging method, device and storage medium |
| CN113410884A (en) * | 2021-06-09 | 2021-09-17 | 广东小天才科技有限公司 | Charging method of wearable device, wearable device and storage medium |
| CN113901750A (en) * | 2021-09-29 | 2022-01-07 | 深圳市今朝时代股份有限公司 | Supercapacitor stored energy estimation method based on fractional calculus |
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Application publication date: 20120404 |