CN111130454A - Photovoltaic energy storage integrated system device - Google Patents
Photovoltaic energy storage integrated system device Download PDFInfo
- Publication number
- CN111130454A CN111130454A CN202010038210.5A CN202010038210A CN111130454A CN 111130454 A CN111130454 A CN 111130454A CN 202010038210 A CN202010038210 A CN 202010038210A CN 111130454 A CN111130454 A CN 111130454A
- Authority
- CN
- China
- Prior art keywords
- heat
- battery pack
- energy storage
- system device
- battery
- Prior art date
- 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.)
- Pending
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 27
- 238000010521 absorption reaction Methods 0.000 claims abstract description 15
- 239000012782 phase change material Substances 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 229920000742 Cotton Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 14
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 14
- 238000010248 power generation Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/38—Energy storage means, e.g. batteries, structurally associated with PV modules
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/40—Thermal components
- H02S40/42—Cooling means
-
- 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
-
- 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
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The invention discloses a photovoltaic energy storage integrated system device, which mainly comprises a photovoltaic panel and a battery module, wherein the photovoltaic panel is used for converting solar energy into electric energy; the voltage output end of the photovoltaic panel is electrically connected with the positive electrode and the negative electrode of the battery module through leads; the battery module comprises a shell, an upper cover, a battery pack, a heat insulation layer for isolating external heat, a heat absorption layer for absorbing the heat of the battery pack, and a controller for controlling the charging and discharging of the battery pack. The invention uses the modified phase-change material with the phase-change temperature of 60-70 ℃ as the heat absorption layer of the battery pack. In the process of photovoltaic power generation, the lithium ion battery stores the energy which is generated by the solar photovoltaic panel and is not continuously stable, and the phase-change material is used for storing the heat generated by the lithium ion battery in the continuous charging and discharging process, so that the safety and the normal service life of the lithium ion battery are ensured. The invention also has the advantages of simple structure, convenient operation and easy implementation.
Description
Technical Field
The invention relates to the technical field of solar photovoltaic power generation, in particular to a solar photovoltaic energy storage integrated system device.
Background
With the increasing shortage of global energy and the increasing awareness of environmental protection, countries are increasing the utilization ratio of green energy such as solar energy, wind power and the like year by year, and hopefully obtaining a continuous energy supply and reducing the environmental impact caused by traditional power such as thermal power generation, nuclear power generation and the like. Among them, the solar power generation system has a much lower construction cost than wind power generation, and can be used by itself in combination with household appliances, so that it is generally supported by various national policies in recent years.
The solar power generation systematization combines energy storage equipment, can solve the problem that the voltage is unstable when solar energy is merged into the main power grid, improves the whole generated energy, and greatly improves the power supply quality of the system through the adjustment and the storage of the energy storage system to the electric energy. The energy storage can track the rapid change of the load, the energy storage serves as an energy buffer, short-term energy shortage of each unit and the load can be balanced, a reasonable and efficient control strategy can be provided to control mutual matching in two working modes, continuous and stable electric energy can be provided for the load, and the reliability of power supply is improved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a solar photovoltaic energy storage integrated system device.
The purpose of the invention is realized by the following technical scheme:
a photovoltaic energy storage integrated system device mainly comprises a photovoltaic panel and a battery module, wherein the photovoltaic panel is used for converting solar energy into electric energy, and the battery module is used for storing the electric energy. And the voltage output end of the photovoltaic panel is electrically connected with the positive electrode and the negative electrode of the battery module through leads.
Specifically, the battery module comprises a shell, an upper cover, a battery pack, a heat insulation layer for isolating external heat, a heat absorption layer for absorbing the heat of the battery pack, and a controller for controlling the charging and discharging of the battery pack. The heat preservation sets up in the shell, laminates and fixed connection with the shell inner wall. The battery pack is fixedly arranged in the shell and is positioned in the middle. The heat absorption layer is arranged in the shell, is positioned between the heat insulation layer and the battery pack and is fixedly connected with the heat insulation layer and the battery pack respectively. The controller is installed in the upper cover and is electrically connected with the photovoltaic panel and the battery pack through wires respectively.
As a preferable scheme of the invention, the battery pack is formed by connecting a plurality of lithium batteries in series and in parallel.
As a preferable scheme of the invention, the heat absorption layer is made of a modified high-temperature phase-change material.
As a preferable scheme of the invention, paraffin or polyethylene glycol can be adopted as the modified high-temperature phase-change material.
As the preferred scheme of the invention, the heat-insulating layer is made of heat-insulating cotton materials.
In a preferred embodiment of the present invention, the heat absorbing layer is embedded in the battery pack, and is bonded to the side surface of the internal battery while being in contact therewith.
Furthermore, in order to facilitate the installation and fixation of the battery pack and the heat absorption layer and avoid excessive looseness during use, the heat insulation layer is also provided with a first bulge for positioning and fixing the heat absorption layer. The first bulges are arranged on the inner side surface of the heat preservation layer and are arranged at intervals along the longitudinal direction.
The working process and principle of the invention are as follows: the invention provides an energy storage system integrating a photovoltaic power generation system and a lithium ion battery, which utilizes a modified phase-change material with the phase-change temperature of 60-70 ℃ as a heat absorption layer of a battery pack. In the process of photovoltaic power generation, the lithium ion battery stores the energy which is generated by the solar photovoltaic panel and is not continuously stable, and the phase-change material is used for storing the heat generated by the lithium ion battery in the continuous charging and discharging process, so that the safety and the normal service life of the lithium ion battery are ensured. The invention also has the advantages of simple structure, convenient operation and easy implementation.
Compared with the prior art, the invention also has the following advantages:
(1) the energy storage system of the photovoltaic energy storage integrated system device provided by the invention is formed by connecting a plurality of lithium ion batteries in series and in parallel, and can meet the electric quantity energy storage requirement of photovoltaic power generation and provide the daily electric load requirement of a household user.
(2) The photovoltaic energy storage integrated system device provided by the invention utilizes a high-temperature phase-change material, the phase-change temperature can meet the daily high-temperature use environment of the photovoltaic panel at about 60-70 ℃, and the good thermal management effect can be achieved on the temperature of the lithium ion battery of the integrated photovoltaic energy storage system, so that the temperature of the battery is not more than 50 ℃, the normal service life of the battery is ensured, and the thermal runaway of the lithium ion battery is prevented.
(3) According to the photovoltaic energy storage integrated system device provided by the invention, the phase-change material is wrapped by the layer of heat-insulating cotton material, so that the purpose of isolating external heat is achieved, and finally, the energy absorbed by the photovoltaic panel is safely stored in the battery module.
Drawings
Fig. 1 is a schematic structural diagram of a photovoltaic energy storage integrated system device provided by the invention.
FIG. 2 is a cross-sectional view of an insulation layer provided by the present invention.
The reference numerals in the above figures illustrate:
the solar cell module comprises a photovoltaic panel 1, a battery module 2, a shell 3, a battery pack 4, a heat insulation layer 5, a heat absorption layer 6 and a first bulge 7.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described below with reference to the accompanying drawings and examples.
Example 1:
as shown in fig. 1 and fig. 2, the present embodiment discloses a photovoltaic energy storage integrated system device, which mainly includes a photovoltaic panel 1 for converting solar energy into electric energy, and a battery module 2 for storing electric energy. And the voltage output end of the photovoltaic panel 1 is electrically connected with the positive electrode and the negative electrode of the battery module 2 through leads.
Specifically, the battery module 2 includes a housing 3, an upper cover, a battery pack 4, a heat insulating layer 5 for insulating external heat, a heat absorbing layer 6 for absorbing heat of the battery pack 4, and a controller for controlling charging and discharging of the battery pack 4. And the heat preservation layer 5 is arranged in the shell 3 and is attached and fixedly connected with the inner wall of the shell 3. The battery pack 4 is fixedly arranged in the shell 3 and is positioned in the middle. The heat absorption layer 6 is arranged in the shell 3, is positioned between the heat insulation layer 5 and the battery pack 4, and is fixedly connected with the heat insulation layer 5 and the battery pack 4 respectively. The controller is arranged in the upper cover and is electrically connected with the photovoltaic panel 1 and the battery pack 4 through wires respectively.
In a preferred embodiment of the present invention, the battery pack 4 further includes a plurality of lithium batteries connected in series and in parallel.
In a preferred embodiment of the present invention, the heat absorbing layer 6 is made of a modified high-temperature phase-change material.
As a preferable scheme of the invention, paraffin or polyethylene glycol can be adopted as the modified high-temperature phase-change material.
As the preferred scheme of the invention, the heat-insulating layer 5 is made of heat-insulating cotton materials.
In a preferred embodiment of the present invention, the heat absorbing layer 6 is embedded in the battery pack 4 and bonded to the side surface of the internal battery.
Furthermore, in order to facilitate the installation and fixation of the battery pack 4 and the heat absorption layer 6 and avoid excessive looseness during use, the heat insulation layer 5 is also provided with a first protrusion 7 for positioning and fixing the heat absorption layer 6. The first protrusions 7 are arranged on the inner side surface of the heat-insulating layer 5 at intervals along the longitudinal direction.
The working process and principle of the invention are as follows: the invention provides an energy storage system integrating a photovoltaic power generation system and a lithium ion battery, which utilizes a modified phase-change material with the phase-change temperature of 60-70 ℃ as a heat absorption layer 6 of a battery pack 4. In the process of photovoltaic power generation, the lithium ion battery stores the energy which is generated by the solar photovoltaic panel and is not continuously stable, and the phase-change material is used for storing the heat generated by the lithium ion battery in the continuous charging and discharging process, so that the safety and the normal service life of the lithium ion battery are ensured. The invention also has the advantages of simple structure, convenient operation and easy implementation.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (7)
1. The photovoltaic energy storage integrated system device is characterized by comprising a photovoltaic panel and a battery module, wherein the photovoltaic panel is used for converting solar energy into electric energy; the voltage output end of the photovoltaic panel is electrically connected with the positive electrode and the negative electrode of the battery module through leads;
the battery module comprises a shell, an upper cover, a battery pack, a heat insulation layer for isolating external heat, a heat absorption layer for absorbing the heat of the battery pack and a controller for controlling the charging and discharging of the battery pack; the heat-insulating layer is arranged in the shell and is attached to and fixedly connected with the inner wall of the shell; the battery pack is fixedly arranged in the shell and is positioned in the middle; the heat absorption layer is arranged in the shell, is positioned between the heat insulation layer and the battery pack and is fixedly connected with the heat insulation layer and the battery pack respectively; the controller is installed in the upper cover and is electrically connected with the photovoltaic panel and the battery pack through wires respectively.
2. The integrated photovoltaic energy storage system device according to claim 1, wherein the battery pack is composed of a plurality of lithium batteries connected in series and in parallel.
3. The integrated photovoltaic energy storage system device according to claim 1, wherein the heat absorbing layer is made of a modified high temperature phase change material.
4. The integrated photovoltaic energy storage system device according to claim 3, wherein the modified high-temperature phase change material is paraffin or polyethylene glycol.
5. The integrated photovoltaic energy storage system device according to claim 1, wherein the insulating layer is made of an insulating cotton material.
6. The integrated photovoltaic energy storage system device according to claim 2, wherein the heat absorbing layer is embedded in the battery pack, and contacts and adheres to the side of the internal battery.
7. The integrated photovoltaic energy storage system device according to claim 1, wherein the insulating layer is further provided with a first protrusion for positioning and fixing the heat absorbing layer; the first bulges are arranged on the inner side surface of the heat preservation layer and are arranged at intervals along the longitudinal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010038210.5A CN111130454A (en) | 2020-01-14 | 2020-01-14 | Photovoltaic energy storage integrated system device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010038210.5A CN111130454A (en) | 2020-01-14 | 2020-01-14 | Photovoltaic energy storage integrated system device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111130454A true CN111130454A (en) | 2020-05-08 |
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ID=70490491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010038210.5A Pending CN111130454A (en) | 2020-01-14 | 2020-01-14 | Photovoltaic energy storage integrated system device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111130454A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111969279A (en) * | 2020-08-26 | 2020-11-20 | 广东工业大学 | Power battery device |
| CN114865196A (en) * | 2022-06-10 | 2022-08-05 | 贵州电网有限责任公司 | Cold region self-temperature-control photovoltaic system battery box and temperature control method |
-
2020
- 2020-01-14 CN CN202010038210.5A patent/CN111130454A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111969279A (en) * | 2020-08-26 | 2020-11-20 | 广东工业大学 | Power battery device |
| CN111969279B (en) * | 2020-08-26 | 2022-04-19 | 广东工业大学 | Power battery device |
| CN114865196A (en) * | 2022-06-10 | 2022-08-05 | 贵州电网有限责任公司 | Cold region self-temperature-control photovoltaic system battery box and temperature control method |
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