CN114172448A - Photovoltaic module system with self-protection function - Google Patents
Photovoltaic module system with self-protection function Download PDFInfo
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- CN114172448A CN114172448A CN202111505784.XA CN202111505784A CN114172448A CN 114172448 A CN114172448 A CN 114172448A CN 202111505784 A CN202111505784 A CN 202111505784A CN 114172448 A CN114172448 A CN 114172448A
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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
- H02S30/00—Structural details of PV modules other than those related to light conversion
- H02S30/20—Collapsible or foldable PV modules
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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
- H02S40/10—Cleaning arrangements
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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
- H02S40/10—Cleaning arrangements
- H02S40/12—Means for removing snow
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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
Abstract
The invention discloses a photovoltaic module system with a self-protection function, which comprises: the device comprises a driving assembly, a base and a battery panel; the bottom of panel articulates the edge portion at the base, and the top and the drive assembly of panel are articulated, and the panel can inwards or outwards overturn round the bottom of panel under drive assembly's drive, and the working face of panel is towards the center of base, and the panel is a plurality of, and a plurality of panels encircle the base setting. When meeting sand and dust sleet weather, fold through drive assembly control panel to avoid panel and dust or sleet contact, just so avoided dust or sleet deposit on the panel, thereby ensure that the panel normally generates electricity, ensure that photovoltaic power plant supplies power steadily. In addition, the dust deposition is avoided, so that the hot spot effect is avoided, and the manual maintenance cost and the material cost are reduced. When weather is good, the solar panel is controlled to be opened through the driving assembly, so that the solar panel can sufficiently receive sunlight.
Description
Technical Field
The invention relates to the field of new energy photovoltaic power generation application, in particular to a photovoltaic module system with a self-protection function.
Background
In recent years, the Chinese photovoltaic industry fully utilizes the technical basis and the industrial matching advantages thereof to develop rapidly, gradually obtains the international competitive advantage and consolidates continuously, and has the most complete photovoltaic industry chain in the world
Photovoltaic power stations mostly use silicon-based solar cell modules, and the solar panels in the silicon-based solar cell modules are usually fixedly arranged towards the sun. In sand and dust weather, dust can be deposited on the surface of the battery panel, so that the heat transfer resistance of the battery panel can be increased, the heat transfer resistance becomes a heat insulation layer on the battery panel, and the heat dissipation of the battery panel is influenced. Under the irradiation of sunlight, the temperature rising speed of the part covered by the dust is high, so that the part covered by the dust generates burning dark spots. The panel covered by dust becomes a non-generating load resistor, consuming power from the connected, uncovered panel, which is a hot spot effect. The hot spot effect can aggravate the aging of the solar panel, and can cause the burning of the solar cell module when the solar cell module is serious, thereby influencing the service life of the photovoltaic power station.
In addition, in rainy and snowy weather, if the accumulated snow covers the solar panel, the solar panel can be influenced to receive sunlight irradiation, meanwhile, the solar panel can be influenced to generate electricity, and even the service life of the photovoltaic power station can be influenced.
Therefore, how to avoid dust or accumulated snow from depositing on the surface of the cell panel, so as to ensure normal power generation of the cell panel and stable power supply of the photovoltaic power station is a critical problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The invention aims to prevent dust or accumulated snow from depositing on the surface of a cell panel, thereby ensuring normal power generation of the cell panel and ensuring stable power supply of a photovoltaic power station. In order to achieve the purpose, the invention provides the following technical scheme:
a photovoltaic module system with self-protection, comprising: the device comprises a driving assembly, a base and a battery panel; the bottom of panel articulates the edge portion of base, the top of panel with drive assembly articulates, the panel can be in drive assembly's drive is round the bottom of panel is inside or outside upset, just the working face of panel faces the center of base, the panel is a plurality of, and is a plurality of the panel encircles the base sets up.
Preferably, the base is disc-shaped and horizontally arranged.
Preferably, the battery plate is rectangular, and the wide side of the battery plate is hinged to the base.
Preferably, in the circumferential direction in one direction, an edge portion of a preceding one of the two adjacent battery plates is superposed on an edge portion of a succeeding one of the two adjacent battery plates.
Preferably, the peripheral edge part of the battery plate is wrapped by an aluminum alloy frame.
Preferably, the drive assembly comprises:
the bottom of the electric telescopic shaft is arranged in the base;
and one end of the connecting shaft is hinged to the top of the electric telescopic shaft, and the other end of the connecting shaft is hinged to the top of the battery panel.
Preferably, the electric telescopic shaft includes a plurality of telescopic shafts and a driving part; in two adjacent telescopic shafts, the upper telescopic shaft can enter the inner cavity of the lower telescopic shaft and can extend out of the inner cavity of the lower telescopic shaft;
when the telescopic shaft is extended, after the clamping plate of the upper telescopic shaft touches the upper limiting plate of the lower telescopic shaft, the upper telescopic shaft can drive the lower telescopic shaft to extend through the clamping plate and the upper limiting plate; when the telescopic shaft is contracted, after the clamping plate of the upper telescopic shaft touches the lower limiting plate of the lower telescopic shaft, the upper telescopic shaft can push the lower telescopic shaft to contract through the clamping plate and the lower limiting plate;
the driving part is used for driving the telescopic shaft at the topmost end to move up and down, and the telescopic shaft at the bottommost end is fixedly connected to the base.
Preferably, the driving part includes a driving motor, a rope, and a spring; the driving motor is arranged on the base and is located in the inner cavity of the telescopic shaft at the bottom, the rope penetrates through all the telescopic shafts, one end of the rope is connected with the motor shaft of the driving motor, the other end of the rope is connected with the telescopic shaft at the top, the spring penetrates through all the telescopic shafts, one end of the spring is connected with the base, and the other end of the spring is connected with the telescopic shaft at the top.
Preferably, still include the supporting component, the supporting component includes base and bracing piece, the bottom of bracing piece links firmly on the base, the base links firmly the top of bracing piece.
Preferably, the power transmission system further comprises a cable, wherein an input end of the cable is connected with the base, a first output end of the cable is connected with an input end of the power transmission line system, and an output end of the power transmission line system is connected with a power grid.
Preferably, the power transmission line system includes an inverter and a power transmission line, the first output end of the cable is connected to the input end of the inverter, the output end of the inverter is connected to the input end of the power transmission line, and the output end of the power transmission line is connected to the power grid.
Preferably, the second output end of the cable is connected with the input end of an energy storage device, and the output end of the energy storage device is connected with the driving assembly.
Preferably, the second output end of the cable is connected with the input end of the energy storage device through a relay.
Preferably, the output end of the energy storage device is connected with the driving assembly through a power supply line, a switch is arranged on the power supply line, and the switch is a remote control switch.
It can be seen from the above technical solution that: when meeting sand and dust sleet weather, fold through drive assembly control panel to avoid panel and dust or sleet contact, just so avoided dust or sleet deposit on the panel, thereby ensure that the panel normally generates electricity, ensure that photovoltaic power plant supplies power steadily. In addition, the dust deposition is avoided, so that the hot spot effect is avoided, and the manual maintenance cost and the material cost are reduced. When weather is good, the solar panel is controlled to be opened through the driving assembly, so that the solar panel can sufficiently receive sunlight.
Drawings
In order to more clearly illustrate the solution of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a photovoltaic module system with a self-protection function according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an electric telescopic shaft according to an embodiment of the present invention.
Wherein, 1-1 is a battery plate, 1-2 is a base, 1-3 is a connecting shaft, 2-1 is an electric telescopic shaft, 2-2 is a connecting shaft, 3 is a supporting rod, 4 is a base, 5 is an inverter, 6 is a power transmission line, 7-2 is a relay, 7-1 is energy storage equipment, 2-1-1 is a telescopic shaft, 2-1-2 is an upper limit plate, 2-1-3 is a lower limit plate, 2-1-4 is a clamping plate, 2-1-5 is a spring, 2-1-6 is a rope, and 2-1-7 is a driving motor.
Detailed Description
The invention discloses a photovoltaic module system with a self-protection function, which can prevent dust or accumulated snow from being deposited on the surface of a cell panel, thereby ensuring normal power generation of the cell panel and stable power supply of a photovoltaic power station.
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 of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, the terms "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The invention discloses a photovoltaic module system with a self-protection function, which comprises: the device comprises a driving assembly, a base 1-2 and a battery panel 1-1. The bottom of the battery board 1-1 is hinged to the edge of the base 1-2, and the top of the battery board 1-1 is hinged to the driving assembly. The function of the drive assembly is to drive the panel 1-1 to turn inwardly around the bottom of the panel 1-1 or towards the centre of the base 1-2 and also to drive the panel 1-1 to turn outwardly around the bottom of the panel 1-1 or away from the base 1-2. The battery board 1-1 is a plurality of, and a plurality of battery boards 1-1 encircle base 1-2 and set up. The plurality of battery plates 1-1 are driven by a driving assembly.
When the driving assembly drives the plurality of battery boards 1-1 to turn inwards, the folding process of the battery boards 1-1 is realized. When the driving assembly drives the plurality of battery boards 1-1 to turn outwards, the opening process of the battery boards 1-1 is realized. The folding and opening of the panels 1-1 is similar to the folding and opening of a flower.
When the weather of sand, dust, rain and snow is met, the driving assembly controls the cell panel 1-1 to be folded, so that the cell panel 1-1 is prevented from being in contact with the dust or the rain and snow, the dust or the rain and snow are prevented from being deposited on the cell panel 1-1, normal power generation of the cell panel 1-1 is guaranteed, and stable power supply of the photovoltaic power station is guaranteed. In addition, the dust deposition is avoided, so that the hot spot effect is avoided, and the manual maintenance cost and the material cost are reduced.
When the weather is good, the panel 1-1 is controlled to be opened by the driving assembly so that the panel 1-1 sufficiently receives the sunlight.
It should be noted that the working surface of the battery plate 1-1 faces the center of the base 1-2, and the non-working surface of the battery plate 1-1 faces away from the base 1-2. When the solar panels 1-1 are folded, the working surfaces of the solar panels 1-1 are positioned on the inner sides of the folding structures, so that dust or rain and snow can be prevented from being deposited on the working surfaces of the solar panels 1-1.
The base 1-2 is set to be disc-shaped, and the plurality of battery plates 1-1 are arranged in a surrounding mode. When the battery plate 1-1 is in an open state, the battery plate 1-1 and the base 1-2 form a bowl shape.
The solar panels 1-1 are arranged in a surrounding mode, so that sunlight is received in 360 degrees in all directions, and the power generation efficiency is improved.
The invention designs the shape of the battery board 1-1 into a rectangle, and the wide side of the battery board 1-1 with the rectangle structure is hinged on the base 1-2. Therefore, the solar panel 1-1 is beneficial to annular arrangement and better conforms to a 360-degree circumferential curve so as to better form a 360-degree all-directional lighting mode.
In the adjacent two battery plates 1-1, the edge portion of the former battery plate 1-1 is overlapped on the edge portion of the latter battery plate 1-1 along one circumferential direction of the base 1-2. The edge portion of each preceding cell panel 1-1 is superposed on the edge portion of the following cell panel 1-1. So set up, guaranteed that there is not clearance between two adjacent panels 1-1. When the solar panels 1-1 are in a folded state, as no gap exists between two adjacent solar panels 1-1, dust or rain and snow can be prevented from entering the inner side of the folded structure through the gap, and the dust or rain and snow can be further prevented from being deposited on the working surfaces of the solar panels 1-1.
It should be noted that, due to the overlapping state between two adjacent panels 1-1, when the driving assembly drives the panels 1-1 to turn over, there is a dragging effect between the adjacent panels 1-1, and in the two adjacent panels, one panel 1-1 can drag the other panel 1-1 to turn over. Therefore, the turning synchronism of the battery panel 1-1 is ensured, and the folding or opening stability of the battery panel 1-1 is improved.
The periphery of the battery plate 1-1 is wrapped with an aluminum alloy frame. The aluminum alloy frame has a protective effect on the battery panel 1-1. The hinged parts of the battery panel 1-1, the driving assembly and the base 1-2 are arranged on the aluminum alloy frame.
The drive assembly is described in detail below: the driving assembly comprises an electric telescopic shaft 2-1 and a connecting shaft 2-21-3. The bottom of the electric telescopic shaft 2-1 is fixedly connected in the base 1-2, one end of the connecting shaft 2-21-3 is hinged to the top of the electric telescopic shaft 2-1, and the other end of the connecting shaft is hinged to the top of the battery board 1-1. The number of the connecting shafts 2-21-3 is equal to that of the battery boards 1-1. Each connecting shaft 2-21-3 corresponds to one battery plate 1-1. When the electric telescopic shaft 2-1 extends upwards, one end of the connecting shaft 2-21-3 connected with the electric telescopic shaft 2-1 can be lifted, so that the corresponding battery panel 1-1 can be driven to fold. When the electric telescopic shaft 2-1 is contracted, one end of the connecting shaft 2-21-3 connected with the electric telescopic shaft 2-1 is lowered, so that the corresponding battery panel 1-1 is pushed to turn outwards, and the battery panel 1-1 is unfolded.
The electric telescopic shaft 2-1 specifically includes a plurality of telescopic shafts and a driving portion, please refer to fig. 2. Except for the topmost telescopic shaft and the bottommost telescopic shaft, the inner cavity of each telescopic shaft comprises an upper limiting plate 2-1-2 and a lower limiting plate 2-1-3, and the bottom of each telescopic shaft is connected with a clamping plate 2-1-4. In two adjacent telescopic shafts up and down, the snap-in plate 2-1-4 of the telescopic shaft above is hidden in the inner cavity of the telescopic shaft below, and the snap-in plate 2-1-4 of the telescopic shaft 2-1-1 above is blocked by the upper limit plate 2-1-2 and the lower limit plate 2-1-3 of the telescopic shaft below. And the upper telescopic shaft can be retracted into the inner cavity of the lower telescopic shaft and can be extended out of the inner cavity of the lower telescopic shaft. For the top telescopic shaft, only the clamping plates 2-1-4 connected with the top telescopic shaft are needed. For the telescopic shaft at the bottommost end, only the upper limiting plate 2-1-2 and the lower limiting plate 2-1-3 need to be arranged. The driving part is used for driving the topmost telescopic shaft to ascend or descend.
In the process that the driving part drives the topmost telescopic shaft to ascend, the topmost telescopic shaft extends out of the inner cavity of the next topmost telescopic shaft, after the clamping plate 2-1-4 of the topmost telescopic shaft touches the upper limiting plate 2-1-2 of the next topmost telescopic shaft, the clamping plate 2-1-4 forms upward thrust on the upper limiting plate 2-1-2, the topmost telescopic shaft can drive the next topmost telescopic shaft to extend out of the inner cavity of the next topmost telescopic shaft, and the telescopic shafts extend out in sequence.
In the process that the driving part drives the topmost telescopic shaft to descend, the topmost telescopic shaft retracts into the inner cavity of the next topmost telescopic shaft, after the clamping plate 2-1-4 of the topmost telescopic shaft touches the lower limiting plate 2-1-3 of the next topmost telescopic shaft, the clamping plate 2-1-4 can form downward thrust on the lower limiting plate 2-1-3, the topmost telescopic shaft can push the next topmost telescopic shaft to retract into the inner cavity of the next topmost telescopic shaft, and the telescopic shafts retract sequentially.
The driving part comprises a driving motor 2-1-7, a rope 2-1-6 and a spring 2-1-5. The driving motor 2-1-7 is arranged on the base 1-2 and is positioned in the inner cavity of the telescopic shaft at the bottommost end. The rope 2-1-6 penetrates through all the telescopic shafts, one end of the rope 2-1-6 is connected with the motor shaft of the driving motor 2-1-7, and the other end of the rope is connected with the telescopic shaft at the topmost end. The spring 2-1-5 is arranged in a similar manner to the rope 2-1-6, the spring 2-1-5 extending through all the telescopic shafts. One end of the spring 2-1-5 is fixedly connected to the base 1-2, and the other end is connected with the topmost telescopic shaft. The natural length of the spring 2-1-5 is larger than the total length of the electric telescopic shaft 2-1, so that the spring 2-1-5 is always in a compressed state.
The spring 2-1-5 provides upward pushing force for the topmost telescopic shaft, and the rope 2-1-6 provides pulling force for the topmost telescopic shaft. If the rope 2-1-6 is not provided, the telescopic shaft is always in an extended state under the elastic force of the spring 2-1-5. The ropes 2-1-6 are wound on motor shafts of the drive motors 2-1-7. If the motor 2-1-7 is driven to rotate forwards, the rope 2-1-6 is gradually loosened from the motor shaft, and the electric telescopic shaft 2-1 is gradually extended under the action of the thrust of the spring 2-1-5 in the process that the rope 2-1-6 is gradually lengthened. If the driving motor 2-1-7 is reversely rotated, the rope 2-1-6 is gradually wound on the motor shaft, and the electric telescopic shaft 2-1 is gradually contracted under the action of the pulling force of the rope 2-1-6 in the process that the rope 2-1-6 is gradually shortened. In the present invention, the opening or closing angle of the battery panel 1-1 can be controlled by controlling the length of the rope 2-1-6.
It should be noted that the electric telescopic shaft 2-1 in the invention is a multi-stage telescopic shaft, that is, the contraction and extension range of the electric telescopic shaft 2-1 can be large enough, so that the battery plate 1-1 can be fully unfolded and folded.
In order to make the solar panel 1-1 receive the sunlight better, the invention also provides a supporting component to make the solar panel 1-1 have a certain height. The support assembly comprises in particular a base 4 and a support bar 3. The bottom of the supporting rod 3 is fixedly connected with the base 4, and the base 1-2 is fixedly connected with the top of the supporting rod 3. The foundation 4 may be a reinforced concrete pile. The material of the support rod 3 is preferably an aluminum alloy material. The aluminum alloy has the advantages of high strength, corrosion resistance and the like.
The power supply principle of the panel 1-1 is described next: the current of each cell plate 1-1 is converged to the base 1-2. The base 1-2 is connected with a cable. The first output end of the cable is connected with the input end of the power transmission line system. The output end of the power transmission line system is connected with a power grid. The transmission line system comprises in particular an inverter 5 and a transmission line 6. The first output end of the cable is connected with the input end of the inverter 5. The inverter 5 converts the direct current generated by the panel 1-1 into alternating current and boosts the alternating current. The power transmission line 6 is connected with the output end of the inverter 5 and inputs high-voltage alternating current into a power grid.
The invention is also provided with an energy storage device 7-1, and the second output end of the cable is connected with the input end of the energy storage device 7-1. The output end of the energy storage device 7-1 is connected with a driving component, namely a driving motor. Further, a second output terminal defining the cable line is connected to an input terminal of the energy storage device 7-1 through a relay 7-2. Also, the relay 7-2 can be remotely operated. In practical application, the relay 7-2 can be opened remotely according to the electric energy consumption requirement, so that the energy storage device 7-1 is charged by the electricity generated by the battery panel 1-1.
The output end of the energy storage device 7-1 is connected with the driving motor through a power supply line. A switch is arranged on the power supply circuit, and the switch is a remote control switch. When severe weather such as sand, dust, rain and snow is met, the switch does not need to be remotely controlled and close to the photovoltaic module system, so that the energy storage device 7-1 provides forward electric energy for the driving motor, the driving motor can rotate forward, and the electric telescopic shaft 2-1 is driven to extend, and the battery panel 1-1 is folded. When the weather of sand, dust, rain and snow passes, the switch is remotely controlled, so that the energy storage device 7-1 provides negative electric energy for the driving motor, the driving motor can rotate reversely, and the electric telescopic shaft 2-1 is driven to contract, so that the battery panel 1-1 is unfolded.
Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (14)
1. A photovoltaic module system with self-protection, comprising: the device comprises a driving assembly, a base and a battery panel;
the bottom of panel articulates the edge portion of base, the top of panel with drive assembly articulates, the panel can be in drive assembly's drive is round the bottom of panel is inside or outside upset, just the working face of panel faces the center of base, the panel is a plurality of, and is a plurality of the panel encircles the base sets up.
2. The self-protected photovoltaic module system according to claim 1, wherein the base is disc-shaped and horizontally disposed.
3. The self-protected photovoltaic module system according to claim 1, wherein the panels are rectangular and the broad sides of the panels are hinged to the base.
4. The self-protected photovoltaic module system according to claim 1, wherein the edge of the former panel overlaps the edge of the latter panel in two adjacent panels in a circumferential direction of one direction.
5. The self-protected photovoltaic module system according to claim 1, wherein the peripheral edge portions of the panels are wrapped by an aluminum alloy frame.
6. The self-protected photovoltaic module system according to claim 1, wherein the driving assembly comprises:
the bottom of the electric telescopic shaft is arranged in the base;
and one end of the connecting shaft is hinged to the top of the electric telescopic shaft, and the other end of the connecting shaft is hinged to the top of the battery panel.
7. The self-protected photovoltaic module system according to claim 6, wherein the electrically powered telescoping shaft comprises a plurality of telescoping shafts and a drive; in two adjacent telescopic shafts, the upper telescopic shaft can enter the inner cavity of the lower telescopic shaft and can extend out of the inner cavity of the lower telescopic shaft;
when the telescopic shaft is extended, after the clamping plate of the upper telescopic shaft touches the upper limiting plate of the lower telescopic shaft, the upper telescopic shaft can drive the lower telescopic shaft to extend through the clamping plate and the upper limiting plate; when the telescopic shaft is contracted, after the clamping plate of the upper telescopic shaft touches the lower limiting plate of the lower telescopic shaft, the upper telescopic shaft can push the lower telescopic shaft to contract through the clamping plate and the lower limiting plate;
the driving part is used for driving the telescopic shaft at the topmost end to move up and down, and the telescopic shaft at the bottommost end is fixedly connected to the base.
8. The self-protected photovoltaic module system according to claim 7, wherein the driving part comprises a driving motor, a rope and a spring; the driving motor is arranged on the base and is located in the inner cavity of the telescopic shaft at the bottom, the rope penetrates through all the telescopic shafts, one end of the rope is connected with the motor shaft of the driving motor, the other end of the rope is connected with the telescopic shaft at the top, the spring penetrates through all the telescopic shafts, one end of the spring is connected with the base, and the other end of the spring is connected with the telescopic shaft at the top.
9. The photovoltaic module system with self-protection function according to claim 1, further comprising a support assembly, wherein the support assembly comprises a base and a support rod, the bottom of the support rod is fixedly connected to the base, and the base is fixedly connected to the top of the support rod.
10. The self-protected photovoltaic module system according to claim 1, further comprising an electrical cable having an input connected to the base, a first output connected to an input of a power transmission line system, and an output connected to a power grid.
11. The photovoltaic module system with the self-protection function according to claim 10, wherein the power transmission line system comprises an inverter and a power transmission line, the first output end of the cable is connected with the input end of the inverter, the output end of the inverter is connected with the input end of the power transmission line, and the output end of the power transmission line is connected with the power grid.
12. The self-protection photovoltaic module system as claimed in claim 10, wherein the second output of the cable is connected to an input of an energy storage device, and an output of the energy storage device is connected to the driving module.
13. The self-protected photovoltaic module system according to claim 12, wherein the second output of the cable is connected to the input of the energy storage device through a relay.
14. The photovoltaic module system with self-protection function according to claim 12, wherein the output end of the energy storage device is connected to the driving module through a power supply line, a switch is arranged on the power supply line, and the switch is a remote control switch.
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