CN112202233A - Power unit for solar charging - Google Patents
Power unit for solar charging Download PDFInfo
- Publication number
- CN112202233A CN112202233A CN202011163684.9A CN202011163684A CN112202233A CN 112202233 A CN112202233 A CN 112202233A CN 202011163684 A CN202011163684 A CN 202011163684A CN 112202233 A CN112202233 A CN 112202233A
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- CN
- China
- Prior art keywords
- solar
- charging
- battery
- energy
- energy storage
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The invention discloses a power unit for solar charging, which relates to the field of solar battery charging and comprises a solar battery, a solar battery and a solar energy processing module, wherein the solar battery is used for converting light energy into electric energy; the energy storage battery is used for storing the electric energy output by the solar battery; the solar cell is directly connected with the energy storage battery. The invention gets rid of the limitation of the solar cell conversion module on charging, realizes that the solar cell directly charges the energy storage cell, reduces the electric quantity loss and the heat productivity, thereby effectively reducing the cost, improving the charging efficiency of the power unit and further improving the conversion utilization rate of solar energy.
Description
Technical Field
The invention belongs to the technical field of photovoltaic power generation, and particularly relates to a solar charging power unit.
Background
Solar energy is a novel green renewable energy source, and is an ideal renewable resource compared with other new energy sources. In recent decades, with the continuous progress of science and technology, solar energy and related industries become one of the fastest-developing industries in the world. Solar energy application in China starts late, but the development speed is high. The photovoltaic industry in China plays an important role in meeting the domestic market demand, improving the living standard of people in remote electroless areas and special industrial application. However, the power generation state of the solar photovoltaic panel is greatly influenced by weather, temperature and natural environment, and the solar photovoltaic panel is difficult to exert the power generation function particularly at night or in rainy and snowy weather. In order to better utilize solar energy and realize stable solar energy application, the prior art combines a solar cell and an energy storage cell when a solar photovoltaic panel is used for providing energy, the solar cell is used for charging the energy storage cell, and electric energy is stored in the energy storage cell, so that the stable application of the solar energy is realized. However, since the output power of the solar cell is unstable and is not matched with the current and voltage required for charging the energy storage battery, the solar cell and the rechargeable battery are connected through a dc chopper when the energy storage battery is charged by using the solar cell, so that the photoelectric conversion efficiency is low and the energy storage loss is large.
The patent application 201710855379.8 (name: a novel solar power generation device) discloses a novel solar power generation device, which structurally comprises support legs, solar photovoltaic panels, a power switch, a box body, an interface, a pull rod, a converter, an energy storage device, a handle and fasteners, wherein the solar photovoltaic panels are respectively provided with a box cover and the box body, the two solar photovoltaic panels are connected with the box body into a whole through the box cover, and the support legs are arranged at the lower ends of the solar photovoltaic panels.
However, in the prior art, the charging method for the rechargeable battery waiting for the charging device by the solar battery is realized by the converter, that is, the solar battery cannot be directly used after collecting solar energy, but needs to be converted to charge the battery waiting for the charging device, so that the efficiency problem of charging conversion and the cost problem exist, and the conversion and the utilization of the solar energy are not facilitated.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a power unit for solar charging, which enables a solar battery to directly, rapidly, stably and efficiently charge an energy storage battery, has high charging efficiency, and improves the conversion and utilization efficiency of solar energy.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the invention provides a power unit for solar charging, which comprises a solar battery, a solar battery and a power supply, wherein the solar battery is used for converting light energy into electric energy; the energy storage battery is used for storing the electric energy output by the solar battery; the solar cell is directly connected with the energy storage battery.
The invention breaks through the traditional thinking mode and gets rid of the limitation of the solar cell conversion module on charging, thereby effectively reducing the cost and realizing the direct charging of the energy storage cell; in addition, the mode can reduce the electric quantity loss, reduce the heat productivity and realize the full utilization of the electric energy.
Further, in order to realize the direct charging of the energy storage battery by the solar battery, the photovoltaic curve parameters of the solar battery are consistent with the charging curve parameters of the energy storage battery. Because the photovoltaic curve parameter of the solar battery and the charging curve parameter of the energy storage battery are kept consistent, the photovoltaic curve parameter and the charging curve parameter of the energy storage battery can be kept in the same state, and the electric quantity of the solar battery can be accurately transmitted to the energy storage battery without loss.
Furthermore, the photovoltaic curve parameters of the solar cell are consistent with the charging curve parameters of the energy storage cell, which means that the photovoltaic curve parameters of the solar cell are consistent in a constant-current charging stage and a constant-voltage charging stage.
Furthermore, the rechargeable battery is provided with a connecting interface, and the rechargeable battery is connected with the energy storage battery through the connecting interface when electric energy is used.
The invention has the advantages that: compared with the prior art, the solar energy conversion module and the solar energy conversion method have the advantages that the limitation of the solar energy conversion module on charging is eliminated, the solar energy battery directly charges the energy storage battery, the electric quantity loss is reduced, the heat productivity is reduced, the cost is effectively reduced, the charging efficiency of the power unit is improved, and the conversion utilization rate of solar energy is further improved.
Drawings
Fig. 1 is a block diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the invention provides a power unit for solar charging, which comprises a solar battery, a solar battery and a power supply, wherein the solar battery is used for converting light energy into electric energy; the energy storage battery is used for storing the electric energy output by the solar battery; the solar cell is directly connected with the energy storage battery.
In order to realize the direct charging of the energy storage battery by the solar battery, the photovoltaic curve parameters of the solar battery are consistent with the charging curve parameters of the energy storage battery. Because the photovoltaic curve parameter of the solar battery and the charging curve parameter of the energy storage battery are kept consistent, the photovoltaic curve parameter and the charging curve parameter of the energy storage battery can be kept in the same state, and the electric quantity of the solar battery can be accurately transmitted to the energy storage battery without loss.
The photovoltaic curve parameters of the solar battery are consistent with the charging curve parameters of the energy storage battery, namely the photovoltaic curve parameters of the solar battery are consistent in a constant-current charging stage and a constant-voltage charging stage.
The rechargeable battery is provided with a connecting interface, and the rechargeable battery is connected with the energy storage battery through the connecting interface when electric energy is used.
The advantages of this embodiment are: compared with the prior art, the solar energy conversion power supply has the advantages that the conventional thinking mode is broken through, the solar battery is directly charged for the energy storage battery, the limitation of the solar battery conversion module on charging is eliminated, the electric quantity loss is reduced, the heat productivity is reduced, the cost is effectively reduced, the charging efficiency of the power unit is improved, and the conversion utilization rate of solar energy is further improved.
The above description is only exemplary of the invention and should not be taken as limiting, and all changes, equivalents and modifications that come within the spirit and scope of the invention (e.g., manual switches, over-voltage relay switches, over-voltage electronic switches, micro-current control switches, time switches, etc. between solar cells and energy storage cells) are desired to be protected.
Claims (4)
1. A power unit for solar charging, characterized by: the solar energy conversion device comprises a solar cell, a light source and a control circuit, wherein the solar cell is used for converting light energy into electric energy; the energy storage battery is used for storing the electric energy output by the solar battery; the solar cell is directly connected with the energy storage battery.
2. The power unit for solar charging of claim 1, wherein: and the photovoltaic curve parameters of the solar battery are consistent with the charging curve parameters of the energy storage battery.
3. The power unit for solar charging of claim 2, wherein: the photovoltaic curve parameters of the solar cell are kept consistent in the constant-current charging stage and the constant-voltage charging stage.
4. The power unit for solar charging of claim 1, wherein: the rechargeable battery is provided with a connecting interface, and the rechargeable battery is connected with the energy storage battery through the connecting interface when electric energy is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011163684.9A CN112202233A (en) | 2020-10-27 | 2020-10-27 | Power unit for solar charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011163684.9A CN112202233A (en) | 2020-10-27 | 2020-10-27 | Power unit for solar charging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112202233A true CN112202233A (en) | 2021-01-08 |
Family
ID=74011630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011163684.9A Withdrawn CN112202233A (en) | 2020-10-27 | 2020-10-27 | Power unit for solar charging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112202233A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070013340A1 (en) * | 2005-07-15 | 2007-01-18 | Mattichak Alan D | Portable solar energy system |
| CN105529810A (en) * | 2016-01-17 | 2016-04-27 | 国家电网公司 | Photovoltaic charging system of energy-storage photovoltaic power station and control method thereof |
| CN107342622A (en) * | 2017-06-08 | 2017-11-10 | 合肥华盖光伏科技有限公司 | A kind of portable type solar energy charger |
| CN207368922U (en) * | 2017-08-24 | 2018-05-15 | 深圳市沃特玛电池有限公司 | Photovoltaic energy storage charging integration system |
| CN209150783U (en) * | 2018-11-13 | 2019-07-23 | 东莞塔菲尔新能源科技有限公司 | A kind of family's energy-storage system that can be grid-connected |
-
2020
- 2020-10-27 CN CN202011163684.9A patent/CN112202233A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070013340A1 (en) * | 2005-07-15 | 2007-01-18 | Mattichak Alan D | Portable solar energy system |
| CN105529810A (en) * | 2016-01-17 | 2016-04-27 | 国家电网公司 | Photovoltaic charging system of energy-storage photovoltaic power station and control method thereof |
| CN107342622A (en) * | 2017-06-08 | 2017-11-10 | 合肥华盖光伏科技有限公司 | A kind of portable type solar energy charger |
| CN207368922U (en) * | 2017-08-24 | 2018-05-15 | 深圳市沃特玛电池有限公司 | Photovoltaic energy storage charging integration system |
| CN209150783U (en) * | 2018-11-13 | 2019-07-23 | 东莞塔菲尔新能源科技有限公司 | A kind of family's energy-storage system that can be grid-connected |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210108 |
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| WW01 | Invention patent application withdrawn after publication |