CN113364308A

CN113364308A - Solar photovoltaic inverter based on big data

Info

Publication number: CN113364308A
Application number: CN202110674362.9A
Authority: CN
Inventors: 李美忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-09-07

Abstract

The invention discloses a solar photovoltaic inverter based on big data, which comprises: the box body, the control mechanism and the heat dissipation mechanism; the control mechanism is arranged in the box body and respectively controls the switch of the direct-current power supply and the operation of the motor through the information of the environmental big data; the heat dissipation mechanism is arranged inside the box body; when the photovoltaic inverter is used, the voltage sensor is installed in the direct-current power supply interface to detect direct-current voltage input by the photovoltaic panel, the temperature sensor is used for detecting the temperature in the photovoltaic inverter, direct-current voltage signal data and temperature signal data are transmitted to the DSP controller through the wires, the data are output to the touch screen through the DSP controller to be displayed, the servo motor is controlled to rotate through the touch screen, the position of the heat dissipation fan is changed, the direct-current switch can be controlled to disconnect a power supply received by the circuit board, and the safety performance of the inverter is improved.

Description

Solar photovoltaic inverter based on big data

Technical Field

The invention relates to the technical field of photovoltaic inverters, in particular to a solar photovoltaic inverter based on big data.

Background

The photovoltaic inverter is an inverter capable of converting variable direct-current voltage generated by the photovoltaic solar panel into alternating current with commercial power frequency, and can be fed back to a commercial power transmission system or used for an off-grid power grid. The photovoltaic inverter is one of important system balances in a photovoltaic array system and can be used together with common alternating current power supply equipment.

However, the existing solar photovoltaic inverter based on big data still has certain problems:

when the existing solar photovoltaic inverter is used, because the power output voltages of different solar photovoltaic panels are different, the voltage received by the inverter cannot be detected, the photovoltaic inverter can not be controlled to be switched on and switched off under the condition of unstable voltage or overhigh temperature of the inverter, and internal components are damaged under the influence of unstable voltage.

Secondly, when the conventional solar photovoltaic inverter is used for a long time, the internal heat dissipation structure cannot dissipate heat according to key heating components, so that the heat dissipation efficiency is low, and the key heating components are easily damaged under the long-term use.

Disclosure of Invention

The invention aims to provide a solar photovoltaic inverter based on big data to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a big data based solar photovoltaic inverter comprising: the box body, the control mechanism and the heat dissipation mechanism;

the control mechanism is arranged in the box body and respectively controls the switch of the direct-current power supply and the operation of the motor through the information of the environmental big data;

the heat dissipation mechanism is arranged inside the box body, analyzes heating points of the main body of the photovoltaic inverter through big data information of the photovoltaic inverter and conducts wind power heat dissipation on the heating points;

wherein the control mechanism comprises a circuit board, a DSP controller and a DC switch, the circuit board is arranged inside the box body, the direct current switch is arranged on the circuit board, the DSP controller is arranged on the inner wall of the top of the box body, the circuit board is provided with a filter, an inverter bridge, a single-phase transformer and a relay, one side of the box body is provided with a direct-current power supply interface, a voltage sensor is arranged in the DC power supply interface, temperature sensors are arranged on the filter, the inverter bridge, the single-phase transformer and the relay, the signal output ends of the voltage sensor and the temperature sensor are connected with the signal input end of the DSP controller through leads, and a wireless transceiver is installed on the inner wall of the top of the box body, and the signal output end of the wireless transceiver is connected with the signal input end of the DSP controller through a wire.

Through adopting above-mentioned technical scheme, during the use, detect the direct current voltage of photovoltaic board input through voltage sensor to detect the temperature of part among the photovoltaic inverter through temperature sensor, the signal data that detect shows in exporting data to the touch screen through the DSP controller, operating personnel can control servo motor through the touch screen and rotate, changes the position of heat dissipation fan, and can control direct current switch disconnection circuit board received power, has improved the security performance of dc-to-ac converter.

Preferably, heat dissipation mechanism is including heat dissipation fan and servo motor, servo motor install in one side of box, servo motor's axis of rotation fixedly connected with lead screw, the one end of lead screw pass through the bearing rotate connect in the inside of box, two plate bodys of the inside symmetry fixedly connected with of box, two the spout has all been seted up to relative one side of plate body, the top fixedly connected with screw thread section of thick bamboo of heat dissipation fan, the slider is all installed to the both sides of heat dissipation fan, slider slidable mounting in the inside of spout, screw thread section of thick bamboo threaded connection in on the lead screw.

Through adopting above-mentioned technical scheme, during the use, rotate by servo motor drive lead screw to drive the screw section of thick bamboo on the lead screw and drive the heat dissipation fan and remove, through removing the top of heat dissipation fan to the key part that generates heat, can effectually dispel the heat to photovoltaic inverter internal part.

Preferably, a touch screen is installed at the top of the box body, and a signal input end of the touch screen is connected with a signal output end of the DSP controller through a wire.

By adopting the technical scheme, the touch screen can display the data transmitted by the DSP controller and send a control signal to the DSP controller.

Preferably, the box body is provided with a detection mechanism, the detection mechanism detects external environment information of the photovoltaic inverter through a humidity sensor, the detected signal information is transmitted to the DSP controller, and the service condition of the photovoltaic inverter is judged according to program preset data.

Preferably, a plurality of heat dissipation holes are formed in the outer portion of the box body.

Through adopting above-mentioned technical scheme, the louvre can be with the inside heat of box outside emission to increase the inside circulation of air of box.

Preferably, the bottom of the box body is welded with a bottom plate, and the bottom plate is symmetrically provided with two through grooves.

Through adopting above-mentioned technical scheme, the bottom plate installation of box through the bottom is in the plane to utilize the mounting to fix the box in leading to the groove.

Preferably, one side of the box body is fixedly connected with a shade, and the servo motor is located inside the shade.

Through adopting above-mentioned technical scheme, the shade can avoid servo motor to expose in the external environment to play the guard action to servo motor.

Preferably, an observation window is embedded in one side of the box body.

Through adopting above-mentioned technical scheme, operating personnel can observe the inside of box through the observation window.

Preferably, waist-shaped grooves are formed in the two sides of the box body.

Through adopting above-mentioned technical scheme, when the box was removing or handling, operating personnel can utilize waist type groove to realize removing or carrying with the hand.

Preferably, an alternating current power supply interface is installed on one side of the box body.

By adopting the technical scheme, the photovoltaic inverter provided by the scheme outputs direct current to the outside by utilizing the alternating current power supply interface after inversion.

Compared with the prior art, the invention has the beneficial effects that:

1. when the photovoltaic inverter is used, direct current voltage input by a photovoltaic panel is detected through a voltage sensor, the temperature of components in the photovoltaic inverter is detected through a temperature sensor, detected signal data are output to a touch screen through a DSP (digital signal processor) controller, an operator can control a servo motor to rotate by using the touch screen through information of environmental big data and the detected data, the position of a heat dissipation fan is changed, a direct current switch can be controlled to disconnect a power supply received by a circuit board, the safety performance of the inverter is improved, and the inverter is prevented from being damaged due to overhigh voltage or overhigh temperature;

2. this scheme provides photovoltaic inverter is after starting servo motor, is rotated by servo motor drive lead screw to drive the screw thread section of thick bamboo on the lead screw and drive the heat dissipation fan and remove, through removing the heat dissipation fan to the top of the key part that generates heat, the wind-force of utilizing the heat dissipation fan dispels the heat to the heavy spot heating part, can effectually dispel the heat to photovoltaic inverter inner part.

3. In the photovoltaic inverter that this scheme provided, can detect photovoltaic inverter installation area's illumination, humidity and air quality respectively through photosensitive sensor, humidity transducer and dust sensor to with signal data transmission to DSP controller in, control direct current switch's start-up or close by DSP controller's judged result, make photovoltaic inverter can adapt to the use under the different environment.

Drawings

Fig. 1 is a schematic structural diagram of a big data-based solar photovoltaic inverter according to the present invention;

FIG. 2 is a schematic view of another structure of the big data-based solar photovoltaic inverter according to the present invention;

FIG. 3 is a schematic view of the internal structure of the solar photovoltaic inverter based on big data according to another aspect of the present invention;

FIG. 4 is a schematic cross-sectional structure diagram of a box body in a solar photovoltaic inverter based on big data according to the present invention;

fig. 5 is a schematic cross-sectional structure diagram of a plate body in the solar photovoltaic inverter based on big data according to the present invention;

fig. 6 is a schematic sectional structure view of a housing in a solar photovoltaic inverter based on big data according to the present invention.

In the figure: 1. a box body; 2. heat dissipation holes; 3. a DC power supply interface; 4. a voltage sensor; 5. a through groove; 6. a base plate; 7. a waist-shaped groove; 8. a touch screen; 9. a housing; 10. an AC power supply interface; 11. an observation window; 12. a circuit board; 13. a wireless transceiver; 14. a DSP controller; 15. a screw rod; 16. a plate body; 17. a threaded barrel; 18. a heat dissipation fan; 19. masking; 20. a servo motor; 21. a temperature sensor; 22. a relay; 23. a single-phase transformer; 24. an inverter bridge; 25. a filter; 26. a DC switch; 27. a chute; 28. a slider; 29. a photosensitive sensor; 30. a humidity sensor; 31. a dust sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution:

a big data based solar photovoltaic inverter comprising: the device comprises a box body 1, a control mechanism and a heat dissipation mechanism.

As shown in fig. 1 to 5, in order to dissipate heat of a heating point of a main body of a photovoltaic inverter by wind power, a heat dissipation mechanism is installed inside a box body 1, wherein the heat dissipation mechanism includes a heat dissipation fan 18 and a servo motor 20, the servo motor 20 is installed at one side of the box body 1, a lead screw 15 is fixedly installed on a rotating shaft of the servo motor 20, one end of the lead screw 15 is rotatably connected inside the box body 1 through a bearing, two plate bodies 16 are symmetrically and fixedly connected inside the box body 1, sliding grooves 27 are formed at opposite sides of the two plate bodies 16, a threaded cylinder 17 is fixedly connected to the top of the heat dissipation fan 18, sliding blocks 28 are installed at two sides of the heat dissipation fan 18, the sliding blocks 28 are slidably installed inside the sliding grooves 27 of the plate bodies 16, and the threaded cylinder 17 is connected to the lead screw 15 through internal threads;

when the heat dissipation mechanism is used, after the servo motor 20 is started, the screw rod 15 is driven to rotate by the servo motor 20, the threaded cylinder 17 on the screw rod 15 is driven to drive the heat dissipation fan 18 to move, the heat dissipation fan 18 is moved to the top of a key heat generation component, the wind power of the heat dissipation fan 18 is utilized to dissipate heat of the key heat generation component, and therefore the heat of internal components of the photovoltaic inverter can be effectively dissipated.

As shown in fig. 1-5, in order for the photovoltaic inverter to control the switching of the dc power supply and the operation of the motor, a control mechanism is installed inside the box 1, wherein the control mechanism includes a circuit board 12, a DSP controller 14 and a dc switch 26, the circuit board 12 is installed inside the box 1, the dc switch 26 is installed on the circuit board 12, the DSP controller 14 is installed on the inner wall of the top of the box 1, a filter 25, an inverter bridge 24, a single-phase transformer 23 and a relay 22 are installed on the circuit board 12, the dc power supply interface 3 is installed on one side of the box 1, a voltage sensor 4 is installed inside the dc power supply interface 3, a temperature sensor 21 is installed on the filter 25, the inverter bridge 24, the single-phase transformer 23 and the relay 22, a signal output terminal of the voltage sensor 4 and a signal output terminal of the temperature sensor 21 are connected to a signal input terminal of the DSP controller 14 through wires, the wireless transceiver 13 is arranged on the inner wall of the top of the box body 1, and the signal output end of the wireless transceiver 13 is connected with the signal input end of the DSP controller 14 through a wire;

when the control mechanism is used, the voltage sensor 4 is arranged in the direct-current power supply interface 3 to detect direct-current voltage input by the photovoltaic panel, the temperature sensor 21 is used to detect the temperature of the filter 25, the inverter bridge 24, the single-phase transformer 23 and the relay 22 in the photovoltaic inverter, direct-current voltage signal data and temperature signal data are transmitted to the DSP controller 14 through wires, the data are output to the touch screen 8 through the DSP controller 14 to be displayed, an operator can control the servo motor 20 to rotate through the touch screen 8 to change the position of the heat dissipation fan 18, the direct-current switch 26 can be controlled to disconnect a power supply received by the circuit board 12, and the safety performance of the inverter is improved.

As shown in fig. 1 to 6, in order to detect external environment information of the photovoltaic inverter, the service condition of the photovoltaic inverter is determined by using detected signal data, and a detection mechanism is installed at the top of the box 1, wherein the detection mechanism includes a housing 9, the housing 9 is fixedly connected to the top of the box 1, a photosensitive sensor 29, a humidity sensor 30 and a dust sensor 31 are installed inside the housing 9, and signal output ends of the photosensitive sensor 29, the humidity sensor 30 and the dust sensor 31 are connected to a signal input end of the DSP controller 14 through wires;

when the detection mechanism is used, the light, humidity and air quality of a photovoltaic inverter installation area can be respectively detected through the photosensitive sensor 29, the humidity sensor 30 and the dust sensor 31, signal data are transmitted to the DSP controller 14, the DSP controller 14 can judge that the area where the photovoltaic inverter is located is day or night through the signal data of the photosensitive sensor 29, and judge air humidity content and whether it rains through the humidity sensor 30, wherein the dust sensor 31 is composed of a PM2.5 sensor and a PM10 sensor, can detect the air quality, can judge the air quality of the area where the photovoltaic inverter is located according to the signal data, and controls the starting or the closing of the direct current switch 26 according to the judgment result.

As shown in fig. 1 to 4, in order to display data transmitted by the DSP controller 14 and send a control signal to the DSP controller 14, a touch screen 8 is installed on the top of the box 1, and a signal input end of the touch screen 8 is connected to a signal output end of the DSP controller 14 through a wire.

As shown in fig. 1 to 4, a plurality of heat dissipation holes 2 are formed outside the cabinet 1 in order to dissipate heat inside the cabinet 1 to the outside and increase air circulation inside the cabinet 1.

As shown in fig. 1 to 3, in order to install the box 1 in a plane and fix the box 1, a bottom plate 6 is welded to the bottom of the box 1, two through grooves 5 are symmetrically formed in the bottom plate 6, and meanwhile, in order to prevent the servo motor 20 from being exposed to the external environment and to protect the servo motor 20, a mask 19 is fixedly connected to one side of the box 1, and the servo motor 20 is located inside the mask 19.

As shown in fig. 1 to 2, in order for an operator to observe the inside of the box 1, an observation window 11 is embedded in one side of the box 1, and in order to move or transport the box 1, waist-shaped grooves 7 are formed in both sides of the box 1.

As shown in fig. 1 to 2, an ac power supply interface 10 is installed at one side of the box body in order for the photovoltaic inverter to invert the dc power and output the ac power to the outside.

According to the technical scheme, the working steps of the scheme are summarized and carded: when the photovoltaic inverter is used, the voltage sensor 4 is arranged in the direct current power interface 3 to detect direct current voltage input by a photovoltaic panel, the temperature sensor 21 is used to detect the temperature of the filter 25, the inverter bridge 24, the single-phase transformer 23 and the relay 22 in the photovoltaic inverter, direct current voltage signal data and temperature signal data are transmitted to the DSP controller 14 through wires, and the data are output to the touch screen 8 through the DSP controller 14 to be displayed, an operator can control the servo motor 20 to rotate through the touch screen 8, the servo motor 20 drives the screw rod 15 to rotate and drives the threaded cylinder 17 on the screw rod 15 to drive the heat dissipation fan 18 to move, the heat dissipation fan 18 is moved to the top of a key heating component through moving the heat dissipation fan 18, wind power of the heat dissipation fan 18 is used for dissipating heat of the key heating component, and meanwhile, the DSP controller 14 can control the direct current switch 26 to cut off power received by the circuit board 12, therefore, the safety performance of the inverter is improved, the inverter is prevented from being damaged due to overhigh voltage or overhigh temperature, and meanwhile, when a user uses the control mechanism, the on-off of the direct-current power supply and the operation of the motor can be respectively controlled through the information of the environmental big data.

To sum up:

1. when the photovoltaic inverter is used, the direct current voltage input by a photovoltaic panel is detected through the voltage sensor 4, the temperature of components in the photovoltaic inverter is detected through the temperature sensor 21, the detected signal data is output to the touch screen 8 through the DSP controller 14, an operator can control the servo motor 20 to rotate by using the touch screen 8 through the information of environmental big data and the detected data, the position of the heat dissipation fan 18 is changed, the direct current switch 26 can be controlled to disconnect the power supply received by the circuit board 12, the safety performance of the inverter is improved, and the inverter is prevented from being damaged by overhigh voltage or overhigh temperature;

2. according to the scheme, after the photovoltaic inverter is started up by the servo motor 20, the servo motor 20 drives the screw rod 15 to rotate, the threaded cylinder 17 on the screw rod 15 is driven to drive the heat dissipation fan 18 to move, the heat dissipation fan 18 is moved to the top of a key heating component, wind power of the heat dissipation fan 18 is utilized to dissipate heat of the key heating component, and therefore heat of internal components of the photovoltaic inverter can be effectively dissipated.

3. In the photovoltaic inverter provided by the scheme, the light, the humidity and the air quality of the photovoltaic inverter installation area can be respectively detected through the photosensitive sensor 29, the humidity sensor 30 and the dust sensor 31, the signal data is transmitted to the DSP controller 14, and the starting or the closing of the direct current switch 26 is controlled by the judgment result of the DSP controller 14, so that the photovoltaic inverter can adapt to the use in different environments.

The parts not involved in the present invention are the same as or can be implemented by the prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a solar photovoltaic inverter based on big data which characterized in that includes: the device comprises a box body (1), a control mechanism and a heat dissipation mechanism;

the control mechanism is arranged in the box body (1), and the control mechanism respectively controls the switch of the direct current power supply and the operation of the motor through the information of the environmental big data;

the heat dissipation mechanism is arranged inside the box body (1), analyzes heating points of the main body of the photovoltaic inverter through big data information of the photovoltaic inverter and conducts wind power heat dissipation on the heating points;

wherein, control mechanism includes circuit board (12), DSP controller (14) and direct current switch (26), circuit board (12) install in the inside of box (1), direct current switch (26) install in on circuit board (12), DSP controller (14) install in the top inner wall of box (1), install wave filter (25), inverter bridge (24), single-phase transformer (23) and relay (22) on circuit board (12), DC power source interface (3) are installed to one side of box (1), the internally mounted of DC power source interface (3) has voltage sensor (4), all install temperature sensor (21) on wave filter (25), inverter bridge (24), single-phase transformer (23) and relay (22), voltage sensor (4) with the signal output part of temperature sensor (21) all through the wire with the signal input part of DSP controller (14) is connected The intelligent cabinet is characterized in that a wireless transceiver (13) is installed on the inner wall of the top of the cabinet body (1), and the signal output end of the wireless transceiver (13) is connected with the signal input end of the DSP controller (14) through a wire.

2. The big-data-based solar photovoltaic inverter according to claim 1, wherein: heat dissipation mechanism is including heat dissipation fan (18) and servo motor (20), servo motor (20) install in one side of box (1), axis of rotation fixedly connected with lead screw (15) of servo motor (20), the one end of lead screw (15) pass through the bearing rotate connect in the inside of box (1), two plate body (16) of the inside symmetry fixedly connected with of box (1), two spout (27) have all been seted up to relative one side of plate body (16), the top fixedly connected with screw section of thick bamboo (17) of heat dissipation fan (18), slider (28) are all installed to the both sides of heat dissipation fan (18), slider (28) slidable mounting in the inside of spout (27), screw section of thick bamboo (17) threaded connection in on lead screw (15).

3. The big-data-based solar photovoltaic inverter according to claim 1, wherein: touch screen (8) are installed at the top of box (1), the signal input part of touch screen (8) pass through the wire with the signal output part of DSP controller (14) is connected.

4. The big-data-based solar photovoltaic inverter according to claim 1, wherein: the detection mechanism is arranged on the box body (1) and used for detecting external environment information of the photovoltaic inverter through the humidity sensor, transmitting the detected signal information to the DSP controller (14), and judging the service condition of the photovoltaic inverter according to program preset data.

5. The big-data-based solar photovoltaic inverter according to claim 1, wherein: a plurality of heat dissipation holes (2) are formed in the outer portion of the box body (1).

6. The big-data-based solar photovoltaic inverter according to claim 1, wherein: the bottom welding of box (1) has bottom plate (6), two logical grooves (5) have been seted up to the symmetry on bottom plate (6).

7. The big-data-based solar photovoltaic inverter according to claim 2, wherein: one side fixedly connected with shade (19) of box (1), servo motor (20) are located the inside of shade (19).

8. The big-data-based solar photovoltaic inverter according to claim 1, wherein: an observation window (11) is embedded in one side of the box body (1).

9. The big-data-based solar photovoltaic inverter according to claim 1, wherein: waist-shaped grooves (7) are formed in the two sides of the box body (1).

10. The big-data-based solar photovoltaic inverter according to claim 5, wherein: an alternating current power supply interface (10) is installed on one side of the box body (1).