CN110707797A - Constant-voltage output system of hybrid energy storage device - Google Patents
Constant-voltage output system of hybrid energy storage device Download PDFInfo
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- CN110707797A CN110707797A CN201911095964.8A CN201911095964A CN110707797A CN 110707797 A CN110707797 A CN 110707797A CN 201911095964 A CN201911095964 A CN 201911095964A CN 110707797 A CN110707797 A CN 110707797A
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- energy storage
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- 238000004146 energy storage Methods 0.000 title claims abstract description 44
- 239000002131 composite material Substances 0.000 claims abstract description 26
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 14
- 238000005070 sampling Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 5
- 238000010248 power generation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
Abstract
The invention discloses a constant voltage output system of a hybrid energy storage device, which comprises a charging power supply, an AC/DC converter, a composite energy storage system, a regulating system, a constant voltage DC/DC module and a direct current load, wherein the AC/DC converter is connected with the charging power supply and converts alternating current of the charging power supply into direct current for output, the converted direct current is input into the composite energy storage system through the AC/DC converter, the constant voltage DC/DC module is connected with the composite energy storage system and performs constant voltage conversion on the voltage of the composite energy storage system, the converted constant voltage is transmitted to the direct current load, and the regulating system and the composite energy storage system are connected between the constant voltage DC/DC modules and are used for regulating the voltage output by the composite energy storage system. The invention has smart design and enhances the energy storage effect.
Description
Technical Field
The invention relates to the technical field of energy storage, in particular to a constant-voltage output system of a hybrid energy storage device.
Background
The pulse type power output causes serious damage to the storage battery along with increasing impact load of a direct current system, the impact load enables the storage battery to discharge large current instantly, and therefore an energy storage system combining a double electric layer capacitor and a storage battery pack needs to be designed to achieve the purpose of constant voltage power transmission.
Disclosure of Invention
The invention provides a constant-voltage output system of a hybrid energy storage device, which can effectively solve the technical problems in the background.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a hybrid energy memory's constant voltage output system, includes charging source, AC/DC converter, composite energy storage system, governing system, constant voltage DC/DC module, direct current load, the AC/DC converter is connected with charging source and with charging source's alternating current conversion direct current output, via the direct current input of the transform of AC/DC converter gives composite energy storage system, the constant voltage DC/DC module is connected with composite energy storage system and carries out the constant voltage transform with composite energy storage system's voltage, and the constant voltage transmission after the transform gives direct current load, governing system and composite energy storage system connect between constant voltage DC/DC module and are used for adjusting composite energy storage system output's voltage.
Preferably, the hybrid energy storage system includes a battery charging circuit, an electric double layer capacitor, and a battery pack, the battery charging circuit transmits the converted current from the AC/DC converter to the electric double layer capacitor and absorbs the electric energy from the electric double layer capacitor, the battery charging circuit charges the battery pack after receiving the current from the AC/DC converter, and the output voltage of the battery pack is adjusted by the adjustment system.
Preferably, the charging power source is wind power generation or commercial power.
Preferably, the adjusting system comprises an adjusting module and a sampling circuit.
Preferably, the adjusting module is connected with the sampling circuit and receives and processes information sampled by the sampling circuit, and a node adjusted by the adjusting module is located between the storage battery pack and the constant voltage DC/DC module.
Preferably, the sampling circuit samples voltage information after being constant-voltage by the constant-voltage DC/DC module.
The invention has the beneficial effects that:
the double-electric-layer capacitor and the charging and storing set are used in a mixed mode, the advantages of the storage battery and the advantages of the double-electric-layer capacitor are combined, and the performance of the electric power energy storage device is improved; the storage battery and the double electric layer capacitor work in a mixed mode, the constant-voltage discharge process of the storage battery can be optimized, the internal loss is reduced, the discharge time is prolonged, and the service life is prolonged. The invention has smart design and enhances the energy storage effect.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1: the invention is a working principle block diagram.
FIG. 2: the invention is a specific working principle block diagram.
In the figure: 1. the device comprises a charging power supply, 2, an AC/DC converter, 3, a constant voltage DC/DC module, 4, a composite energy storage system, 5, a regulating system, 6, a storage battery charging circuit, 7, an electric double layer capacitor, 8, a storage battery pack, 9, a regulating module, 10, a sampling circuit, 11 and a direct current load.
Detailed Description
In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the present invention provides a constant voltage output system of a hybrid energy storage device, including a charging power supply 1, an AC/DC converter 2, a composite energy storage system 4, a regulation system 5, a constant voltage DC/DC module 3, and a DC load 11, where the charging power supply 1 is from wind power generation or commercial power, the AC/DC converter 2 is connected to the charging power supply 1 and converts AC power of the charging power supply 1 into DC power for output, the converted DC power is input to the composite energy storage system 4 through the AC/DC converter 2, the constant voltage DC/DC module 3 is connected to the composite energy storage system 4 and performs constant voltage conversion on voltage of the composite energy storage system 4, and the converted constant voltage is transmitted to the DC load 11.
Referring to fig. 2, the hybrid energy storage system 4 includes a battery charging circuit 6, an electric double layer capacitor 7, and a battery pack 8, wherein the converted current from the AC/DC converter 2 is transmitted to the electric double layer capacitor 7 and the electric double layer capacitor 7 absorbs power, the battery charging circuit 6 charges the battery pack 8 after receiving the current from the AC/DC converter 2, and the output voltage of the battery pack 8 is adjusted by the adjusting system 5.
Referring to fig. 1 and fig. 2, the regulating system 5 and the composite energy storage system 4 are connected between the constant voltage DC/DC module 3 and are used for regulating the voltage output by the composite energy storage system 4, and the regulating system 5 includes a regulating module 9 and a sampling circuit 10.
Referring to fig. 2, the adjusting module 9 is connected to the sampling circuit 10 and receives and processes information sampled by the sampling circuit 10, and a node adjusted by the adjusting module 9 is located between the battery pack 8 and the constant voltage DC/DC module 3. The sampling circuit 10 samples the voltage information after being constant-voltage by the constant-voltage DC/DC module 3, and then adjusts the voltage information, thereby maintaining constant control of the DC output voltage with a certain accuracy.
The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above-described embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (6)
1. The utility model provides a hybrid energy memory's constant voltage output system which characterized in that: comprises a charging power supply (1), an AC/DC converter (2), a composite energy storage system (4), a regulating system (5), a constant voltage DC/DC module (3) and a direct current load (11), the AC/DC converter (2) is connected with the charging power supply (1) and converts the alternating current of the charging power supply (1) into direct current for output, the converted direct current via the AC/DC converter (2) is input to a composite energy storage system (4), the constant voltage DC/DC module (3) is connected with the composite energy storage system (4) and performs constant voltage conversion on the voltage of the composite energy storage system (4), and the converted constant voltage is transmitted to a direct current load, and the adjusting system (5) and the composite energy storage system (4) are connected between the constant voltage DC/DC modules (3) and used for adjusting the voltage output by the composite energy storage system (4).
2. The constant voltage output system of a hybrid energy storage device of claim 1, wherein: the composite energy storage system (4) comprises a storage battery charging circuit (6), an electric double layer capacitor (7) and a storage battery pack (8), wherein converted current passing through an AC/DC converter (2) is transmitted to the electric double layer capacitor (7) and electric energy is absorbed by the electric double layer capacitor (7), the storage battery charging circuit (6) charges the storage battery pack (8) after receiving current from the AC/DC converter (2), and the output voltage of the storage battery pack (8) is regulated by a regulating system (5).
3. The constant voltage output system of a hybrid energy storage device of claim 1, wherein: the charging power supply (1) is from wind power generation or commercial power.
4. The constant voltage output system of a hybrid energy storage device according to claim 2, wherein: the adjusting system (5) comprises an adjusting module (9) and a sampling circuit (10).
5. The constant voltage output system of a hybrid energy storage device according to claim 4, wherein: the adjusting module (9) is connected with the sampling circuit (10) and receives and processes information sampled by the sampling circuit (10), and a node adjusted by the adjusting module (9) is positioned between the storage battery pack (8) and the constant-voltage DC/DC module (3).
6. The constant voltage output system of a hybrid energy storage device according to claim 5, wherein: the sampling circuit (10) samples voltage information after being constant-voltage by the constant-voltage DC/DC module (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911095964.8A CN110707797A (en) | 2019-11-11 | 2019-11-11 | Constant-voltage output system of hybrid energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911095964.8A CN110707797A (en) | 2019-11-11 | 2019-11-11 | Constant-voltage output system of hybrid energy storage device |
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| Publication Number | Publication Date |
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| CN110707797A true CN110707797A (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911095964.8A Pending CN110707797A (en) | 2019-11-11 | 2019-11-11 | Constant-voltage output system of hybrid energy storage device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2886899Y (en) * | 2006-03-27 | 2007-04-04 | 北京展飞通信科技有限公司 | A charger with movable discharging function |
| CN101309017A (en) * | 2008-07-11 | 2008-11-19 | 中国科学院电工研究所 | Wind power and photovoltaic power complementary power supply system based on mixed energy accumulation of super capacitor accumulator |
| CN101783603A (en) * | 2010-03-05 | 2010-07-21 | 深圳市睿德电子实业有限公司 | Method for improving safety and energy-efficient performance of civilian electrical appliance, and civilian DC power supply system |
| WO2012176943A1 (en) * | 2011-06-22 | 2012-12-27 | 한국과학기술원 | Power supply system and method |
-
2019
- 2019-11-11 CN CN201911095964.8A patent/CN110707797A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2886899Y (en) * | 2006-03-27 | 2007-04-04 | 北京展飞通信科技有限公司 | A charger with movable discharging function |
| CN101309017A (en) * | 2008-07-11 | 2008-11-19 | 中国科学院电工研究所 | Wind power and photovoltaic power complementary power supply system based on mixed energy accumulation of super capacitor accumulator |
| CN101783603A (en) * | 2010-03-05 | 2010-07-21 | 深圳市睿德电子实业有限公司 | Method for improving safety and energy-efficient performance of civilian electrical appliance, and civilian DC power supply system |
| WO2012176943A1 (en) * | 2011-06-22 | 2012-12-27 | 한국과학기술원 | Power supply system and method |
Non-Patent Citations (1)
| Title |
|---|
| 顾煜炯等: "海岛直流微网复合储能系统控制策略设计与实现", 《电力自动化设备》 * |
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Application publication date: 20200117 |