CN215071663U - Photovoltaic off-grid protection system - Google Patents
Photovoltaic off-grid protection system Download PDFInfo
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- CN215071663U CN215071663U CN202121705306.9U CN202121705306U CN215071663U CN 215071663 U CN215071663 U CN 215071663U CN 202121705306 U CN202121705306 U CN 202121705306U CN 215071663 U CN215071663 U CN 215071663U
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- photovoltaic
- heat dissipation
- dissipation mechanism
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- inverter
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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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
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
The utility model discloses a be used for photovoltaic to leave net protection system relates to the photovoltaic and leaves net technical field, leaves net protection effect general for solving current photovoltaic, leads to its problem that has potential safety hazards such as overheated, electric leakage when using. The controller is installed to photovoltaic module's output, battery and dc-to-ac converter are installed respectively to the output of controller, photovoltaic module's output pass through the controller respectively with battery and dc-to-ac converter electric connection, illumination intensity sensor is installed to photovoltaic module's one end, the singlechip is installed to illumination intensity sensor's output, illumination intensity sensor's output and singlechip electric connection, electric cabinet, current detector and wireless transmission module are installed respectively to the output of singlechip, the output of singlechip respectively with electric cabinet, current detector and wireless transmission module's input electric connection.
Description
Technical Field
The utility model relates to a photovoltaic leaves net technical field, specifically is a be used for photovoltaic to leave net protection system.
Background
The off-grid photovoltaic power generation system is widely applied to application places such as remote mountainous areas, dead areas, islands, communication base stations, street lamps and the like. The photovoltaic array converts solar energy into electric energy under the condition of illumination, supplies power to a load through the solar charging and discharging controller, and simultaneously charges the storage battery pack; when no illumination is available, the storage battery pack supplies power to the direct current load through the solar charging and discharging controller, meanwhile, the storage battery also directly supplies power to the independent inverter, and the independent inverter inverts the power into alternating current to supply power to the alternating current load.
However, the existing photovoltaic off-grid protection effect is general, so that the problems of potential safety hazards such as overheating and electric leakage exist when the photovoltaic off-grid protection device is used; thus, the existing needs are not met, for which we propose a system for photovoltaic off-grid protection.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be used for photovoltaic to leave net protection system to current photovoltaic that proposes in solving above-mentioned background art leaves net protection effect generally, leads to its problem that has potential safety hazards such as overheated, electric leakage when using.
In order to achieve the above object, the utility model provides a following technical scheme: a photovoltaic off-grid protection system comprises a photovoltaic assembly, wherein a controller is installed at the output end of the photovoltaic assembly, a storage battery and an inverter are respectively installed at the output end of the controller, the output end of the photovoltaic assembly is electrically connected with the storage battery and the inverter respectively through the controller, an illumination intensity sensor is installed at one end of the photovoltaic assembly, a single chip microcomputer is installed at the output end of the illumination intensity sensor, the output end of the illumination intensity sensor is electrically connected with the single chip microcomputer, an electric cabinet, a current detector and a wireless transmission module are respectively installed at the output end of the single chip microcomputer, a temperature sensor is installed at the input end of the single chip microcomputer, the output end of the temperature sensor is electrically connected with the single chip microcomputer, a heat dissipation mechanism is installed above the inverter, and a fan is arranged in the heat dissipation mechanism.
Preferably, a thermistor and a fuse are mounted to one end of the inverter, respectively.
Preferably, the input end of the fan is provided with a motor, and the output end of the motor is in transmission connection with the fan through a coupler.
Preferably, circulating pipes are installed on two sides of the motor, and a heat exchange box is installed at one end of each circulating pipe.
Preferably, the air ports are arranged on the outer walls of two sides of the heat dissipation mechanism, the air channel is arranged between the heat dissipation mechanism and the inverter, the mounting pieces are arranged below the outer walls of two sides of the heat dissipation mechanism, the screws are arranged on the outer walls of the mounting pieces, and the lower portions of the outer walls of two sides of the heat dissipation mechanism are connected with the heat dissipation mechanism through the mounting pieces and the screws in a threaded mode.
Preferably, the display screen is installed to the preceding terminal surface of dc-to-ac converter, control button is installed to one side of display screen, control button's below is installed the access cover.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model achieves the effect of basic photovoltaic off-grid through the photovoltaic component, the controller, the inverter and the storage battery, when the photovoltaic off-grid is used, the illumination intensity sensor acts on the photovoltaic component, the illumination intensity sensor can detect the ambient illumination and achieve the effect of knowing the illumination intensity, the current detector is used for detecting the current in transmission to achieve the effects of preventing electric leakage and detecting whether the voltage is stable, the temperature sensor acts on the controller and the inverter respectively, the temperature sensor mainly plays the role of detecting the temperature of two places, the detected temperature data is transmitted to the single chip microcomputer, the fan is additionally arranged to dissipate the heat internally by wind power, the single chip microcomputer is connected with the electric cabinet to ensure that the electric cabinet can be powered off when the electric cabinet is in the conditions of electric leakage, overheating and the like, the obtained data can be sent to a user terminal through the wireless transmission module for the user to check, compare in general photovoltaic from the net, the utility model provides high photovoltaic is from the protection effect of net for the photovoltaic is from the function that the net can be safer.
2. The thermal element is used for changing with the temperature change of the inverter, and the fuse is used for carrying out fusing treatment after the current exceeds a specified value.
3. The rotating speed of the fan is changed by adjusting the rotating speed of the motor so as to achieve the heat dissipation effect of different wind power strengths, and the circulating pipe and the heat exchange box are used for cooling the motor, so that the motor cannot overheat even when the rotating speed is too high, and the protection effect is achieved.
Drawings
FIG. 1 is a schematic diagram of the present invention;
fig. 2 is a schematic view of a partial structure of the inverter of the present invention;
fig. 3 is a schematic view of a partial structure of the heat dissipation mechanism of the present invention;
in the figure: 1. a photovoltaic module; 2. a controller; 3. an inverter; 4. a thermosensitive element; 5. a fuse; 6. a storage battery; 7. an illumination intensity sensor; 8. a single chip microcomputer; 9. an electric cabinet; 10. a current detector; 11. a temperature sensor; 12. a wireless transmission module; 13. a display screen; 14. an operation button; 15. an access cover; 16. a heat dissipation mechanism; 17. a mounting member; 18. a screw; 19. a tuyere; 20. a heat exchange box; 21. a fan; 22. a motor; 23. a circulation pipe; 24. an air duct.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, the present invention provides an embodiment: a photovoltaic off-grid protection system comprises a photovoltaic component 1, wherein a controller 2 is installed at the output end of the photovoltaic component 1, a storage battery 6 and an inverter 3 are respectively installed at the output end of the controller 2, the output end of the photovoltaic component 1 is respectively and electrically connected with the storage battery 6 and the inverter 3 through the controller 2, an illumination intensity sensor 7 is installed at one end of the photovoltaic component 1, a single chip microcomputer 8 is installed at the output end of the illumination intensity sensor 7, the output end of the illumination intensity sensor 7 is electrically connected with the single chip microcomputer 8, an electric cabinet 9, a current detector 10 and a wireless transmission module 12 are respectively installed at the output end of the single chip microcomputer 8, the output end of the single chip microcomputer 8 is respectively and electrically connected with the input ends of the electric cabinet 9, the current detector 10 and the wireless transmission module 12, a temperature sensor 11 is installed at the input end of the single chip microcomputer 8, and the output end of the temperature sensor 11 is electrically connected with the single chip microcomputer 8, a heat dissipation mechanism 16 is installed above the inverter 3, a fan 21 is installed inside the heat dissipation mechanism 16, the model of the illumination intensity sensor 7 is AY-IOT, the model of the temperature sensor 11 is ADT75ARZ-REEL7, and the model of the wireless transmission module 12 is ZLAN 9700.
Furthermore, a thermosensitive element 4 and a fuse 5 are respectively installed at one end of the inverter 3, the thermosensitive element 4 is used for changing with the temperature change of the inverter 3, and the fuse 5 is used for carrying out fusing treatment after the current exceeds a specified value, so that the protection effect on the inverter 3 can be achieved, and the photovoltaic is safer to be off-grid.
Further, motor 22 is installed to fan 21's input, and motor 22's output passes through the shaft coupling and is connected with fan 21 transmission, and motor 22 is used for driving fan 21 and rotates, changes fan 21's rotational speed through the rotational speed regulation to motor 22 to reach the radiating effect of different wind strength.
Furthermore, circulating pipes 23 are installed on two sides of the motor 22, a heat exchange box 20 is installed at one end of each circulating pipe 23, and the circulating pipes 23 and the heat exchange box 20 are used for cooling the motor 22, so that the motor 22 cannot overheat even when rotating at an over-high speed, and the protection effect is achieved.
Further, the outer walls of the two sides of the heat dissipation mechanism 16 are provided with air ports 19, an air duct 24 is arranged between the heat dissipation mechanism 16 and the inverter 3, the mounting parts 17 are arranged below the outer walls of the two sides of the heat dissipation mechanism 16, the outer walls of the mounting parts 17 are provided with screws 18, the lower parts of the outer walls of the two sides of the heat dissipation mechanism 16 are connected with the heat dissipation mechanism 16 through the mounting parts 17 and the screws 18 in a threaded mode, and the mounting parts 17 and the screws 18 can facilitate mounting and dismounting of the heat dissipation mechanism 16 by a user.
Further, a display screen 13 is installed on the front end face of the inverter 3, an operation button 14 is installed on one side of the display screen 13, an access cover 15 is installed below the operation button 14, and the display screen 13 and the operation button 14 are used for achieving the effect of facilitating operation and observation of a user.
The working principle is as follows: when the photovoltaic off-grid monitoring device is used, the effect of basic photovoltaic off-grid is achieved through the photovoltaic component 1, the controller 2, the inverter 3 and the storage battery 6, when the photovoltaic off-grid monitoring device is used, the illumination intensity sensor 7 acts on the photovoltaic component 1 and can detect ambient illumination to achieve the effect of knowing the illumination intensity, the current detector 10 is used for detecting the current in transmission to achieve the effects of preventing electric leakage and detecting whether the voltage is stable, the temperature sensor 11 acts on the controller 2 and the inverter 3 respectively and mainly plays a role of detecting the temperatures of two places, the detected temperature data are transmitted to the single chip microcomputer 8 and are internally subjected to wind power heat dissipation by utilizing the additional fan 21, the single chip microcomputer 8 is connected with the electric cabinet 9 to enable the single chip microcomputer to be subjected to power off processing when the conditions of electric leakage, overheating and the like are met, the obtained data can be sent to a user terminal through the wireless transmission module 12, the utility model provides a user looks over, thermistor 4 is used for changing with inverter 3's temperature variation, fuse 5 is used for carrying out fusing treatment after the electric current exceeds the specified value, the aforesaid can both play the protection effect to inverter 3, make photovoltaic off-grid safer, adjust the rotational speed that changes fan 21 through the rotational speed to motor 22, in order to reach the radiating effect of different wind strength, circulating pipe 23 and heat transfer case 20 are used for cooling down motor 22, make its motor 22 be the rotational speed too fast also can not take place overheat phenomenon, the effect of protection has been reached.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. An off-grid protection system for photovoltaics, comprising a photovoltaic module (1), characterized in that: the photovoltaic module is characterized in that a controller (2) is installed at the output end of the photovoltaic module (1), a storage battery (6) and an inverter (3) are installed at the output end of the controller (2) respectively, the output end of the photovoltaic module (1) is electrically connected with the storage battery (6) and the inverter (3) respectively through the controller (2), an illumination intensity sensor (7) is installed at one end of the photovoltaic module (1), a single chip microcomputer (8) is installed at the output end of the illumination intensity sensor (7), the output end of the illumination intensity sensor (7) is electrically connected with the single chip microcomputer (8), an electric cabinet (9), a current detector (10) and a wireless transmission module (12) are installed at the output end of the single chip microcomputer (8) respectively, and the output end of the single chip microcomputer (8) is electrically connected with the input ends of the electric cabinet (9), the current detector (10) and the wireless transmission module (12) respectively, temperature sensor (11) are installed to the input of singlechip (8), and the output and singlechip (8) electric connection of temperature sensor (11), heat dissipation mechanism (16) are installed to the top of dc-to-ac converter (3), the internally mounted of heat dissipation mechanism (16) has fan (21).
2. The system of claim 1, wherein the system further comprises: a thermosensitive element (4) and a fuse (5) are respectively mounted at one end of the inverter (3).
3. The system of claim 1, wherein the system further comprises: the motor (22) is installed to the input of fan (21), and the output of motor (22) passes through the shaft coupling and is connected with fan (21) transmission.
4. The system of claim 3, wherein the system further comprises: circulating pipes (23) are installed on two sides of the motor (22), and a heat exchange box (20) is installed at one end of each circulating pipe (23).
5. The system of claim 1, wherein the system further comprises: wind gap (19) are all installed to the outer wall of heat dissipation mechanism (16) both sides, install wind channel (24) between heat dissipation mechanism (16) and inverter (3), installed part (17) are all installed to the below of heat dissipation mechanism (16) both sides outer wall, screw (18) are installed to the outer wall of installed part (17), and the below of heat dissipation mechanism (16) both sides outer wall all is through installed part (17) and screw (18) and heat dissipation mechanism (16) threaded connection.
6. The system of claim 1, wherein the system further comprises: display screen (13) are installed to the preceding terminal surface of inverter (3), control button (14) are installed to one side of display screen (13), access cover (15) are installed to the below of control button (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121705306.9U CN215071663U (en) | 2021-07-26 | 2021-07-26 | Photovoltaic off-grid protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121705306.9U CN215071663U (en) | 2021-07-26 | 2021-07-26 | Photovoltaic off-grid protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215071663U true CN215071663U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121705306.9U Active CN215071663U (en) | 2021-07-26 | 2021-07-26 | Photovoltaic off-grid protection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114859983A (en) * | 2022-07-04 | 2022-08-05 | 江苏国强兴晟能源科技有限公司 | Photovoltaic support intelligent tracking method based on strong wind environment |
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2021
- 2021-07-26 CN CN202121705306.9U patent/CN215071663U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114859983A (en) * | 2022-07-04 | 2022-08-05 | 江苏国强兴晟能源科技有限公司 | Photovoltaic support intelligent tracking method based on strong wind environment |
| CN114859983B (en) * | 2022-07-04 | 2022-09-16 | 江苏国强兴晟能源科技有限公司 | Photovoltaic support intelligent tracking method based on strong wind environment |
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