CN117118320A - Photovoltaic power generation device and application method thereof - Google Patents

Abstract

The invention provides a photovoltaic power generation device and a using method thereof, and relates to the technical field of photovoltaic power generation. The photovoltaic power generation device includes: a support mechanism; the fixed frame is obliquely arranged relative to the supporting mechanism; the movable frame is rotationally connected with the fixed frame; at least two photovoltaic plates, at least one photovoltaic plate is fixedly connected to the fixed frame, and at least one photovoltaic plate is fixedly connected to the movable frame; the telescopic support piece is fixedly connected to the support mechanism and is provided with a telescopic end which is in sliding connection with the movable frame; the movable frame has an expanded state and a supporting state: when in a supporting state, the telescopic end is compressed so that the movable frame is abutted with the supporting mechanism, and the fixed frame and the movable frame form an inverted V-shaped structure; when the movable frame is in the unfolding state, the telescopic end stretches and drives the movable frame to be separated from the supporting mechanism, so that the fixed frame and the movable frame are positioned on the same plane. The photovoltaic power generation device is not easy to collapse when the photovoltaic panel is subjected to wind load.

Description

Photovoltaic power generation device and application method thereof

Technical Field

The invention relates to the technical field of photovoltaic power generation, in particular to a photovoltaic power generation device and a using method thereof.

Background

Photovoltaic power generation is a technology that uses the photovoltaic effect of a semiconductor interface to directly convert light energy into electrical energy. The photovoltaic power generation device mainly comprises three parts of a solar panel (component), a controller and an inverter, and the main parts comprise electronic components. The solar cells are packaged and protected after being connected in series to form a large-area photovoltaic panel, and then the photovoltaic panel is matched with components such as a power controller and the like to form the photovoltaic power generation device.

Currently, photovoltaic panels are required to be installed in open air conditions, and they are required to be oriented at a certain inclination angle to the sun.

However, in areas with large wind forces such as deserts, the photovoltaic panel may collapse when subjected to wind load.

Disclosure of Invention

The invention provides a photovoltaic power generation device and a use method thereof, which are used for solving the problem that a photovoltaic panel may collapse when the photovoltaic panel is subjected to wind load.

In a first aspect, the present invention provides a photovoltaic power generation apparatus comprising:

a support mechanism;

the fixed frame is fixedly connected to the supporting mechanism and is obliquely arranged relative to the supporting mechanism;

the movable frame and the fixed frame are respectively positioned at two sides of the supporting mechanism, and the movable frame is rotationally connected with the fixed frame;

At least two photovoltaic plates, at least one photovoltaic plate is fixedly connected to the fixed frame, and at least one photovoltaic plate is fixedly connected to the movable frame;

the telescopic support piece is fixedly connected to the support mechanism and is provided with a telescopic end which is in sliding connection with the movable frame;

the movable frame has an expanded state and a supporting state: when in a supporting state, the telescopic end compresses and drives the movable frame to rotate relative to the fixed frame so as to enable the movable frame to be abutted with the supporting mechanism, and the fixed frame and the movable frame form an inverted V-shaped structure; when the movable frame is in the unfolding state, the telescopic end stretches and drives the movable frame to be separated from the supporting mechanism, so that the fixed frame and the movable frame are positioned on the same plane.

In one possible embodiment, the support mechanism comprises:

a main support rod;

the first connecting piece is fixedly connected with the end part of the main supporting rod;

one end of the first auxiliary supporting rod is fixedly connected with the first connecting piece, and the other end of the first auxiliary supporting rod is fixedly connected with the fixed frame;

and one end of the second auxiliary supporting rod is fixedly connected with the first connecting piece, and the other end of the second auxiliary supporting rod is used for being abutted with the movable frame.

In one possible embodiment, the support mechanism further comprises:

The fastener is fixedly arranged on the main supporting rod and fixedly connected with the telescopic supporting piece;

the fastening piece is connected with the first connecting piece through the longitudinal reinforcing rods;

the fixed frame is connected with the fastener through the diagonal brace;

at least one first connecting rod, wherein the longitudinal reinforcing rod is connected with the diagonal brace rod through the first connecting rod;

and the longitudinal reinforcing rod is connected with the telescopic support piece through the second connecting rod.

In one possible embodiment, the fastener comprises two hoops and a welding plate, the two hoops being clamped on the main support bar, the two hoops clamping part of the longitudinal reinforcing bar, part of the diagonal brace and part of the telescopic support; the welding plate is arranged on the anchor ear, and the longitudinal reinforcing rod, the inclined strut and the telescopic supporting piece are welded with the welding plate.

In one possible implementation mode, the telescopic end is connected with a pulley, a rolling shaft is arranged in the middle of the pulley, a connecting plate is arranged on one surface of the movable frame, which faces away from the photovoltaic panel, a connecting hole is formed in the connecting plate, and the rolling shaft penetrates through the connecting hole so that the pulley slides along the connecting hole.

In one possible implementation manner, the photovoltaic power generation device further comprises a controller, a pressure sensor is arranged at the end part of one of the fixed frame and the movable frame, which faces the other, the pressure sensor and the telescopic support piece are electrically connected with the controller, the pressure sensor is used for detecting the pressure between the fixed frame and the movable frame, and the controller is in an unfolding state and acquires the pressure between the fixed frame and the movable frame; when the pressure is larger than or equal to a first preset pressure or the pressure is smaller than or equal to a second preset pressure, the wind force value is larger than or equal to a preset wind force value when the first preset pressure is larger than or equal to the second preset pressure, and the telescopic end of the telescopic support piece is controlled to drive the movable frame to be in a supporting state; when the pressure is smaller than the second preset pressure and the pressure is larger than the first preset pressure, the wind force value is smaller than the preset wind force value, and the movable frame is controlled to maintain the unfolding state.

In one possible implementation, the photovoltaic power generation device further comprises a photovoltaic energy storage device, the photovoltaic panel and the controller are electrically connected with the photovoltaic energy storage device, the photovoltaic energy storage device is used for storing electric energy generated by the photovoltaic panel, and the controller is powered by the photovoltaic energy storage device;

an electric heating element is arranged in the photovoltaic panel and is electrically connected with the controller, and the electric heating element is used for melting ice on the photovoltaic panel.

In a second aspect, the present invention provides a method for using a photovoltaic power generation device, where the photovoltaic power generation device is a photovoltaic power generation device according to any one of the above embodiments, and the photovoltaic power generation device includes a telescopic support and a movable frame; the using method of the photovoltaic power generation device comprises the following steps:

acquiring a wind power value of an environment where a photovoltaic power generation device is located;

if the wind power value is greater than or equal to the preset wind power value, controlling the telescopic end of the telescopic support piece to drive the movable frame to be in a supporting state;

if the wind power value is smaller than the preset wind power value, the telescopic end is controlled to drive the movable frame to be in a switching state.

In one possible embodiment, the method for using a photovoltaic power generation device further includes:

in the unfolding state, acquiring pressure between a fixed frame and a movable frame of the photovoltaic power generation device;

when the pressure is larger than or equal to a first preset pressure or the pressure is smaller than or equal to a second preset pressure, the wind force value is larger than or equal to a preset wind force value when the first preset pressure is larger than or equal to the second preset pressure, and the telescopic end of the telescopic support piece is controlled to drive the movable frame to be in a supporting state;

when the pressure is smaller than the second preset pressure and the pressure is larger than the first preset pressure, the wind force value is smaller than the preset wind force value, and the movable frame is controlled to maintain the unfolding state.

In one possible implementation manner, the photovoltaic power generation device further comprises a photovoltaic energy storage device, the photovoltaic panel is electrically connected with the photovoltaic energy storage device, an electric heating element is arranged in the photovoltaic panel, at least two photovoltaic power generation devices are arranged, and the use method of the photovoltaic power generation device further comprises:

acquiring the generated energy of at least two photovoltaic power generation devices;

if the generated energy of more than two photovoltaic power generation devices is zero, controlling the telescopic ends of the photovoltaic power generation devices with the generated energy of zero to drive the movable frames to be continuously switched between a supporting state and an unfolding state so as to enable the generated energy to be larger than zero;

controlling the telescopic end to drive the movable frame to be in an unfolding state;

the electrical heating element is controlled to turn on to melt ice on the photovoltaic panel.

The photovoltaic power generation device provided by the invention is provided with the fixed frame fixedly arranged, the movable frame movably connected with the fixed frame and the telescopic support piece connected with the movable frame, and the movable frame is switched between the unfolding state and the support state by compressing and stretching the telescopic support piece, so that the solar energy can be fully utilized in a conventional environment, and the wind power can be resisted in a severe environment.

When supporting state, flexible support piece compression, movable frame and supporting mechanism butt, fixed frame and movable frame form the reverse V-arrangement structure, and the wind load effect that reverse V-arrangement structure received is less to, reverse V-arrangement structure makes photovoltaic power generation device's bottom sprag area bigger, has good windproof effect. Even in areas with larger wind power such as deserts, the photovoltaic panel is less affected by wind load, and the photovoltaic panel is not easy to collapse.

In the unfolded state, the telescopic support piece stretches, the fixed frame and the movable frame are located on the same plane, and in this state, the photovoltaic panel can be unfolded completely, and solar energy can be collected to the greatest extent.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

FIG. 1 is a schematic diagram of a single-pole photovoltaic power generation device in the prior art;

FIG. 2 is a schematic diagram of a multi-pole photovoltaic power generation device in the prior art;

fig. 3 is a schematic structural diagram of a photovoltaic power generation device according to an embodiment of the present application;

FIG. 4 is a schematic view of FIG. 3 in another state;

FIG. 5 is a schematic view of the supporting mechanism in FIG. 3;

FIG. 6 is a top view of the fastener of FIG. 3;

FIG. 7 is a bottom view of the fastener of FIG. 3;

FIG. 8 is a side view of the fastener of FIG. 3;

FIG. 9 is a schematic illustration of a person walking beside the single pole photovoltaic power generation device shown in FIG. 1;

FIG. 10 is a schematic view of a person walking between a plurality of photovoltaic power generation devices as shown in FIG. 3;

FIG. 11 is a schematic view of a person walking under the photovoltaic power generation device shown in FIG. 3;

FIG. 12 is a schematic view of the telescoping support of FIG. 3;

FIG. 13 is a schematic view of the pulley of FIG. 12;

FIG. 14 is a schematic view of the second connector of FIG. 3;

FIG. 15 is a schematic view of the structure of the photovoltaic panel of FIG. 3;

FIG. 16 is a schematic diagram of the control system of FIG. 3;

fig. 17 is a flowchart of a method of using the photovoltaic power generation apparatus of fig. 3.

Reference numerals illustrate:

10-mounting a frame;

20-supporting columns;

30-a photovoltaic cell;

100-supporting mechanisms; 101-a main support rod; 102-a first connector; 103-a first secondary support bar; 104-a second auxiliary supporting rod; 105-abutting plates; 106-a fastener; 1061-hoop; 1062-welding plates; 107-longitudinal reinforcement bars; 108-diagonal bracing; 109-a first connecting rod; 110-a second connecting rod;

200-fixing a frame;

300-a movable frame; 310-connecting plates; 311-connecting holes;

400-photovoltaic panel; 410-an electrical heating element;

500-telescoping support; 510—a telescoping end; 520-pulley; 521-rolling shafts;

600-second connector; 610-a first folded plate; 611-a first flat plate portion; 612—first fold; 620-a second folding plate; 621-a second plate portion; 622-second folds; 623-third folds;

700-a controller;

800-a pressure sensor;

900-photovoltaic energy storage.

To facilitate an understanding of the solution of the invention, spline curves and arrows used for reference numerals in the drawings are described herein: the parts indicated for the spline without arrow are solid parts, i.e. parts with solid structure; the parts indicated for the spline with arrow are virtual parts, i.e. parts without solid structure.

Specific embodiments of the present invention have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships, if any, based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Moreover, 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 … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element. If not conflicting, the embodiments of the present invention and the features of the embodiments may be combined with each other, which are all within the protection scope of the present invention.

First, the terms involved in the present invention will be explained:

photovoltaic power generation: and converting solar energy into electric energy by utilizing the photovoltaic effect. The renewable energy power generation technology is characterized in that solar radiation is converted into direct current through a photovoltaic panel, and then the direct current is converted into alternating current through an inverter, so that the alternating current is supplied to families, industries or power grids for use.

Currently, photovoltaic panels are installed in open air conditions and are typically required to be oriented at an incline to the sun, depending on the local latitude and longitude and sunlight conditions. For example, referring to fig. 1, fig. 1 shows a single-pole photovoltaic power generation device, a mounting frame 10 of the photovoltaic power generation device is fixedly connected to a supporting upright 20, the mounting frame 10 is inclined relative to the supporting upright 20, and a photovoltaic cell 30 is mounted on the mounting frame 10. Referring to fig. 2, fig. 2 shows a multi-pole photovoltaic power generation device, wherein the number of the supporting columns 20 of the multi-pole photovoltaic power generation device is plural, and the lengths of the supporting columns 20 are different, so that the supporting performance of the multi-pole photovoltaic power generation device is better than that of a single-pole photovoltaic power generation device. The two installation modes furthest utilize the irradiation of sunlight, and improve the efficiency of the photovoltaic power generation system. Under the configuration, sunlight irradiates on a photovoltaic cell, electric energy is generated through a photoelectric effect, and then the electric energy is transmitted to an inverter through a cable for conversion, and finally alternating current is obtained and supplied to families and industries.

However, photovoltaic panels present challenges in certain areas, particularly in the harsh environments of deserts and the like. The climate conditions in desert areas are often accompanied by strong winds and sand storm, and the photovoltaic power generation device bears a lot of wind load and has high strength. When strong winds strike the photovoltaic panel, significant compressive forces and forces may be generated, which may result in collapse and damage to the photovoltaic panel if the photovoltaic panel is not securely fastened and supported. This not only affects the stable operation of the photovoltaic power generation system, but can also result in high maintenance and replacement costs.

In view of the above technical problems, please refer to fig. 3 and 4, an embodiment of the present invention provides a photovoltaic power generation device, which includes:

a support mechanism 100; the fixed frame 200 is fixedly connected to the supporting mechanism 100, and the fixed frame 200 is obliquely arranged relative to the supporting mechanism 100; the movable frame 300, the movable frame 300 and the fixed frame 200 are respectively positioned at two sides of the supporting mechanism 100, and the movable frame 300 is rotatably connected with the fixed frame 200; at least two photovoltaic panels 400, at least one photovoltaic panel 400 is fixedly connected to the fixed frame 200, and at least one photovoltaic panel 400 is fixedly connected to the movable frame 300; the telescopic support 500, the telescopic support 500 is fixedly connected to the support mechanism 100, the telescopic support 500 has a telescopic end 510, and the telescopic end 510 is slidably connected to the movable frame 300.

The movable frame 300 has a deployed state and a supporting state: in the supporting state, the telescopic end 510 compresses and drives the movable frame 300 to rotate relative to the fixed frame 200, so that the movable frame 300 is abutted against the supporting mechanism 100, and the fixed frame 200 and the movable frame 300 form an inverted V-shaped structure; when in the unfolded state, the telescopic end 510 stretches and drives the movable frame 300 to separate from the supporting mechanism 100, so that the fixed frame 200 and the movable frame 300 are located on the same plane.

In some embodiments, one of the movable frame 300 and the fixed frame 200 is provided with a rotation shaft toward an end of the other, and the other is rotatably connected thereto through the rotation shaft.

In other embodiments, the movable frame 300 and the fixed frame 200 are hinged to achieve a rotational connection of the movable frame 300 and the fixed frame 200.

The rotation connection mode of the movable frame 300 and the fixed frame 200 is not limited to the two modes, and can be adjusted according to specific requirements, so long as the rotation connection of the two can be realized.

The photovoltaic power generation device provided by the invention is provided with the fixed frame 200 fixedly arranged, the movable frame 300 movably connected with the fixed frame 200 and the telescopic support piece 500 connected with the movable frame 300, and the movable frame 300 is switched between the unfolding state and the supporting state by compressing and stretching the telescopic support piece 500, so that solar energy can be fully utilized in a conventional environment, and wind power can be resisted in a severe environment.

When supporting state, the telescopic support 500 compresses, the movable frame 300 is abutted with the supporting mechanism 100, the fixed frame 200 and the movable frame 300 form an inverted V-shaped structure, the wind load effect born by the inverted V-shaped structure is smaller, and the inverted V-shaped structure enables the supporting area of the bottom of the photovoltaic power generation device to be larger, the supporting performance is better, and the wind-proof effect is good. Even in areas with large wind power such as deserts, the photovoltaic panel 400 is less subjected to wind load, and the photovoltaic panel 400 is not easy to collapse.

In the unfolded state, the telescopic support 500 is unfolded, and the fixed frame 200 and the movable frame 300 are positioned in the same plane, and in this state, the photovoltaic panel 400 can be completely unfolded, and solar energy can be collected to the maximum extent.

Specifically, the movable frame 300 provides different support for the photovoltaic panel 400 in the unfolded state and the support state.

When the movable frame 300 is in the unfolded state, the telescopic support 500 is extended, and the movable frame 300 is separated from the support mechanism 100, so that the fixed frame 200 and the movable frame 300 are located on the same plane. In this state, the photovoltaic panel 400 can be fully unfolded, and the covered area is relatively large. The larger the surface area of the photovoltaic panel 400, the more solar radiation energy is received. Under good lighting conditions, the photovoltaic panel 400 can more fully utilize solar energy to convert sunlight into electrical energy. Therefore, the fixed frame 200 and the movable frame 300 are positioned on the same plane, so that solar energy can be collected to the greatest extent and the power generation efficiency of the photovoltaic power generation system can be optimized.

In the supporting state, the movable frame 300 is abutted against the supporting mechanism 100, and the telescopic supporting member 500 is compressed, so that the fixed frame 200 and the movable frame 300 form an inverted V-shaped structure. By the design, when the photovoltaic power generation device is impacted by strong wind and sand, the photovoltaic power generation device can resist the effect of wind better, the stability and wind resistance of the photovoltaic panel 400 are enhanced, and collapse of the photovoltaic panel 400 is effectively avoided. The design of the inverted V-shaped structure increases the stability and wind resistance of the photovoltaic power generation device mainly for several reasons:

firstly, the inverted V-shaped structure enables the whole supporting mechanism to better disperse wind force action when facing wind force impact by dispersing and arranging supporting points on two sides of the supporting mechanism. The supporting mechanism is more uniformly stressed, the situation of overlarge local stress can not occur, and the possibility of deformation and damage of the photovoltaic power generation device is reduced.

Secondly, the inverted V-shaped structure enables the support area of the bottom of the photovoltaic power generation device to be larger. Therefore, under the action of facing wind force, the bottom of the photovoltaic power generation device can better resist the horizontal force blown by the wind, and the stability of the photovoltaic power generation device is improved. In contrast, the fixed frame 200 and the movable frame 300 are located on the same plane, the bottom supporting area of the photovoltaic power generation device is small, and under the action of wind force, the born horizontal force is relatively concentrated, so that the photovoltaic power generation device is easy to topple over and damage.

The inverted V-shaped structure also has the advantages that through the design of the inclined plane, wind and sand slide down through the inclined plane and are not accumulated, and erosion of the wind and sand can be better prevented. In areas with serious wind and sand such as deserts, the erosion of the wind and sand to the photovoltaic power generation device can cause the damage of the photovoltaic power generation device. The inverted V-shaped structure reduces the direct impact of wind sand on the photovoltaic power generation device through the arrangement of the inclined plane, and protects the stable operation of the photovoltaic power generation device.

In addition, the inverted V-shaped structure reduces the area of the photovoltaic panel 400 provided on the photovoltaic power generation apparatus in contact with wind, compared to the structure in which the fixed frame 200 and the movable frame 300 are coplanar, thereby reducing wind resistance. When wind force acts on the photovoltaic panel 400, the inverted V-shaped structure of the photovoltaic power generation device can reduce horizontal force generated by wind resistance, and reduces wind impact on the whole photovoltaic power generation device.

In some embodiments, the telescoping support 500 compresses or expands and rotates the movable frame 300 relative to the fixed frame 200 such that the movable frame 300 also has a horizontal state (not shown), a support transition state (not shown), and an expansion transition state (not shown): in the horizontal state, the movable frame 300 is parallel to the horizontal plane; in the process that the movable frame 300 rotates from a position parallel to the horizontal plane to a position abutting against the supporting mechanism 100, the form of the movable frame 300 changes from the horizontal state to the supporting state, and the form between the horizontal state and the supporting state is called a supporting transition state of the movable frame 300; in the process of rotating the movable frame 300 from the position parallel to the horizontal plane to the position where the fixed frame 200 and the movable frame 300 are located on the same plane, the form of the movable frame 300 is changed from the horizontal state to the expanded state, and the form between the horizontal state and the expanded state is referred to as an expanded transition state of the movable frame 300.

In the support transition state, the telescopic support 500 is contracted, the movable frame 300 is separated from the support mechanism 100, and the fixed frame 200 and the movable frame 300 are inclined toward each other, that is, a support space which is gradually widened from top to bottom is formed between the fixed frame 200 and the movable frame 300, and both the support mechanism 100 and the telescopic support 500 are located in the support space. In this case, the photovoltaic power generation device also has a certain windproof effect.

In the unfolded transition state, the movable frame 300 has an inclination angle consistent with the inclination direction of the fixed frame 200, in which case solar energy can be collected at different angles.

To facilitate understanding of the structure of the photovoltaic power generation apparatus, the photovoltaic power generation apparatus will now be further described in connection with the structure of the supporting mechanism 100, the fixed frame 200, the movable frame 300, the photovoltaic panel 400, and the telescopic support 500, as follows:

in one possible embodiment, referring to fig. 5, the support mechanism 100 includes: a main support bar 101; the first connecting piece 102, the first connecting piece 102 is fixedly connected with the end part of the main supporting rod 101; the first auxiliary supporting rod 103, one end of the first auxiliary supporting rod 103 is fixedly connected with the first connecting piece 102, and the other end of the first auxiliary supporting rod 103 is fixedly connected with the fixed frame 200; and a second auxiliary supporting rod 104, wherein one end of the second auxiliary supporting rod 104 is fixedly connected with the first connecting piece 102, and the other end of the second auxiliary supporting rod 104 is used for being abutted with the movable frame 300.

Specifically, the first auxiliary supporting bar 103 and the second auxiliary supporting bar 104 are integrally provided on the main supporting bar 101 through the first connection member 102, so that the supporting mechanism 100 occupies a relatively small space on the basis of satisfying a certain structural strength.

In this embodiment, the fixed connection between the first connection member 102 and the main support rod 101, the fixed connection between the first auxiliary support rod 103 and the main support rod 101, and the fixed connection between the second auxiliary support rod 104 and the main support rod 101 may be welded, screwed, riveted, etc., which is not limited in this invention and may be adjusted according to the requirements. It should be noted that all the fixed connections of the present invention may be applied to the above connection method, and will not be described in detail later.

The first connecting member 102 may be made of a metal material, and may have a circular shape, a triangular shape, a quadrangular shape, a pentagonal shape, etc., and the present invention is not limited to the material and shape of the first connecting member 102 and may be adjusted according to the needs.

In other embodiments, referring to fig. 5, an abutment plate 105 is fixedly disposed on the second auxiliary supporting rod 104, and the abutment plate 105 is obliquely disposed, and the abutment plate 105 is used for abutting against the movable frame 300. In the supporting state, the inclination angle of the abutting plate 105 is identical to that of the movable frame 300, and in this case, the plate surface of the abutting plate 105 contacts with the movable frame 300, so that the supporting effect is achieved, and the connection of the two is safer.

In some embodiments, referring to fig. 5, the support mechanism 100 further includes: the fastening piece 106 is fixedly arranged on the main supporting rod 101, and the fastening piece 106 is fixedly connected with the telescopic supporting piece 500; at least two longitudinal reinforcing rods 107, at least two longitudinal reinforcing rods 107 being provided at the circumferential side of the main support rod 101, the fastener 106 being connected to the first link 102 by the longitudinal reinforcing rods 107;

diagonal brace 108, and fixing frame 200 is connected with fastener 106 through diagonal brace 108;

at least one first connecting rod 109, the longitudinal reinforcement rod 107 and the diagonal brace 108 being connected by the first connecting rod 109;

at least one second connection rod 110, the longitudinal reinforcement rod 107 and the telescopic support 500 are connected by the second connection rod 110.

By providing the fasteners 106 on the main support bar 101 and connecting the longitudinal reinforcement bar 107, the diagonal braces 108 and the telescoping support 500 via the first and second connection bars 109, 110, the overall stability of the support mechanism 100 is enhanced. These connecting members and the longitudinal reinforcing rods 107 constitute a stable frame structure, ensuring stable operation of the photovoltaic power generation apparatus under various external environmental conditions, particularly stability against external forces such as strong winds.

The presence of the diagonal braces 108 increases the rigidity of the support mechanism 100. This helps to reduce vibration and deformation of the support mechanism 100 under wind or other external forces, thereby maintaining the proper position of the photovoltaic panel 400 and ensuring stability and safety of the photovoltaic power generation apparatus.

The longitudinal reinforcing rods 107 and the diagonal brace 108 enable external acting force to be transmitted to the main supporting rod 101 and other connecting components more uniformly, so that local overstresses can be avoided, the compressive capacity and the torsional capacity of the supporting mechanism 100 are improved, and the reliability of the photovoltaic power generation device in long-term operation is ensured.

In other embodiments, referring to fig. 6-8, the fastener 106 includes two hoops 1061 and a welding plate 1062, the two hoops 1061 being clamped to the main support pole 101, the two hoops 1061 clamping a portion of the longitudinal stiffener 107, a portion of the diagonal brace 108, and a portion of the telescoping support 500; the welding plate 1062 is disposed on the anchor ear 1061, and the longitudinal reinforcement bar 107, the diagonal brace 108, and the telescoping support 500 are welded to the welding plate 1062. The hoop 1061 is a structural design known in the art, and is not described herein; for the welding plate 1062, the welding plate 1062 is fixedly disposed at both ends of the anchor ear 1061.

The longitudinal stiffener 107, diagonal brace 108 and telescoping support 500 are securely connected together by the combination of the anchor ear 1061 and the weld plate 1062. The anchor ear 1061 clamps these structural members and the weld plate 1062 is firmly connected to them by welding, whereby the weld plate 1062 provides additional reinforcement to the longitudinal reinforcement bar 107, diagonal brace 108 and telescoping support 500, enhancing their rigidity, enhancing the overall stability of the support mechanism 100, ensuring that the components do not loosen during operation of the photovoltaic power plant even in severe weather conditions such as strong winds.

Considering the construction cost, please refer to fig. 9, the photovoltaic power generation device is generally erected on the ground, which results in a small space under the board and cannot be used for agriculture.

In view of the above technical problems, in the present invention, referring to fig. 10 and 11, the height of the main supporting pole 101 is 2.5 m to 5 m, for example, 2.5 m, 4 m, 5 m. In addition, when the movable frame 300 is in the supporting state, the height of the lower edges of the fixed frame 200 and the movable frame 300 with respect to the mounting surface for mounting the supporting mechanism 100 is 2 m to 4.5 m, for example, 2 m, 3 m, 4.5 m.

Considering that the height of the staff and the height of most of the shrubs or vegetation are generally lower than 2 meters, the height of the main support rod 101 is set to be 2.5-5 meters, the heights of the lower edges of the fixed frame 200 and the movable frame 300 are set to be 2-4.5 meters, and the heights of the main support rod 101, the lower edge of the fixed frame 200 and the lower edge of the movable frame 300 are ensured to be higher than the heights of most of the shrubs or vegetation on the first aspect, so that the blocking of the shrubs or vegetation to the photovoltaic panel 400 is avoided, the photovoltaic panel 400 can fully receive sunlight, and the photovoltaic power generation efficiency is improved; in the second aspect, the heights of the main supporting rod 101, the lower edge of the fixed frame 200 and the lower edge of the movable frame 300 are higher than those of the workers, so that the workers cannot touch the lower edges of the fixed frame 200 and the movable frame 300 when operating and maintaining the photovoltaic power generation apparatus, and the safety of the workers is ensured.

In this embodiment, the telescopic support 500 is an electro-hydraulic rod. Firstly, the electric hydraulic rod can realize automatic adjustment and accurate control, so that the angle of the movable frame 300 can be automatically adjusted according to the position of the sun, the orientation of the photovoltaic panel 400 is optimized, solar energy is collected to the maximum extent, and the power generation efficiency is improved. Secondly, the electric hydraulic rod provides strong force output, and can adjust the working state of the movable frame 300 into a supporting state, so that the stability of the photovoltaic power generation device can be improved, the severe conditions such as wind power, sand wind and the like are resisted, the structure of the photovoltaic power generation device is kept stable, and the possibility of collapse is reduced. Finally, by combining an intelligent control system, remote control and intelligent management are realized, and the operation efficiency and convenience of the photovoltaic power generation device can be improved.

Further, the electro-hydraulic stem has a power-off reset state.

Specifically, when the wind weather or other emergency is met, the electric hydraulic rod automatically returns to the contracted state by cutting off the power connection, so that the photovoltaic power generation device can be effectively protected. In windy weather, wind power may cause great stress to the photovoltaic power generation apparatus, resulting in damage or collapse. The hydraulic rod can be retracted rapidly in the power-off reset state, the influence of wind power on the photovoltaic power generation device is reduced, the wind resistance of the photovoltaic power generation device is improved, and potential safety hazards are reduced.

And, outage reset state makes photovoltaic power generation device have intelligent response capability. When the windy weather is detected, the system can automatically cut off the power connection without manual intervention. The intelligent design enables the photovoltaic power generation device to take safety measures in time in severe weather, and safe operation of the photovoltaic power generation device is protected.

In some embodiments, referring to fig. 12 and 13, a pulley 520 is connected to the telescopic end 510, a rolling shaft 521 is disposed in the middle of the pulley 520, a connecting plate 310 is disposed on a surface of the movable frame facing away from the photovoltaic panel, a connecting hole 311 is formed in the connecting plate 310, and the rolling shaft 521 is disposed through the connecting hole 311, so that the pulley 520 slides along the connecting hole 311.

By providing the pulley 520 and the rolling shaft 521 on the telescopic end 510 and the connecting plate 310 and the connecting hole 311 on the side of the movable frame facing away from the photovoltaic panel, sliding adjustment of the telescopic end 510 is achieved. When the pulley 520 slides along the connection hole 311, the rolling shaft 521 serves as a supporting point, so that the movable frame can perform a rotary motion with respect to the fixed frame, so that the movable frame is in a supporting state or an unfolding state, thereby realizing a wind prevention function and a power generation function of the photovoltaic power generation device.

The arrangement of the pulley 520, the rolling shaft 521 and the connecting plate 310 makes the mechanism of telescopic adjustment simple and efficient. By sliding the pulley 520, the telescopic movement of the movable frame 300 can be achieved without a complicated mechanical structure, thereby reducing the manufacturing cost and maintenance cost.

In some embodiments, referring to fig. 3 and 4 and 14, a plurality of second connectors 600 are provided on at least one of the fixed frame 200 and the movable frame 300, and the second connectors 600 are used for connecting with the photovoltaic panel 400. The plurality of second connectors 600 are more stable to support the photovoltaic panel 400.

In some embodiments, referring to fig. 14, the second connector 600 includes:

a first folding plate 610, the first folding plate 610 including a first flat plate portion 611 and a first folding portion 612 perpendicular to each other;

the second folding plate 620, the second folding plate 620 includes a second flat plate portion 621, a second folding portion 622 and a third folding portion 623, the second folding portion 622 and the third folding portion 623 are respectively located at two ends of the second flat plate portion 621, and the second folding portion 622 and the third folding portion 623 are perpendicular to the second flat plate portion 621;

the first flat plate portion 611 and the second flat plate portion 621 are fixedly connected by bolts, the first folded portion 612 and the second folded portion 622 are arranged away from each other, the first folded portion 612 and the second folded portion 622 are respectively fixedly connected with the same fixed frame 200 or the same movable frame 300 by bolts, and the third folded portion 623 is fixedly connected with the photovoltaic panel 400 by bolts, so that the connection between the photovoltaic panel 400 and the fixed frame 200 and the movable frame 300 is stable.

In some embodiments, referring to fig. 4, when the movable frame 300 is in the unfolded state, a gap is formed between the photovoltaic panel 400 on the fixed frame 200 and the photovoltaic panel 400 on the movable frame 300. Through the gap provided, the mutual collision between the photovoltaic panel 400 on the fixed frame 200 and the photovoltaic panel 400 on the movable frame 300 can be effectively prevented. In the unfolded state of the movable frame 300, the photovoltaic panels 400 may be affected by wind force or external force, and if there is no gap between the photovoltaic panels 400, they may be brought into contact with each other, causing collision damage. And after the gap is set, the photovoltaic panel 400 has more space to buffer and freely move when facing external force, so that the possibility of collision is reduced, and the integrity and the service life of the photovoltaic panel 400 are protected.

In some embodiments, the gap is 1cm-5cm, such as 1cm, 3cm, or 5cm, and the invention is not so limited and can be adjusted as desired.

In some embodiments, referring to fig. 15, the photovoltaic power generation device further has a control system, where the control system includes a controller 700, and an end of one of the fixed frame and the movable frame facing the other is provided with a pressure sensor 800, and the pressure sensor 800 and the telescopic support 500 are electrically connected to the controller 700, and the pressure sensor 800 is used to detect a pressure between the fixed frame and the movable frame, and the controller 700 obtains the pressure between the fixed frame and the movable frame in the unfolded state; when the pressure is larger than or equal to a first preset pressure or the pressure is smaller than or equal to a second preset pressure, the wind force value is larger than or equal to a preset wind force value when the first preset pressure is larger than or equal to the second preset pressure, and the telescopic end of the telescopic support piece is controlled to drive the movable frame to be in a supporting state; when the pressure is smaller than the second preset pressure and the pressure is larger than the first preset pressure, the wind force value is smaller than the preset wind force value, and the movable frame is controlled to maintain the unfolding state.

In some embodiments, referring to fig. 15, the photovoltaic power generation apparatus further includes a photovoltaic energy storage 900, the photovoltaic panel 400 and the controller 700 are electrically connected to the photovoltaic energy storage 900, the photovoltaic energy storage 900 is used for storing the electric energy generated by the photovoltaic panel 400, and the controller 700 is powered by the photovoltaic energy storage 900;

referring to fig. 15 and 16, an electric heating element 410 is disposed in the photovoltaic panel 400, the electric heating element 410 is electrically connected to the controller 700, and the electric heating element 410 is used to melt ice on the photovoltaic panel 400.

In particular, the photovoltaic energy storage 900 is used to store electrical energy generated by the photovoltaic panel 400. When the illumination intensity is high or the demand is low, the electric energy generated by the photovoltaic panel 400 exceeds the current required electric energy, and the photovoltaic energy accumulator 900 can store the redundant electric energy so as to be used when the illumination is low or the demand is high, balance and storage of the electric energy are realized, and the utilization efficiency of photovoltaic power generation is improved.

In cold climates, ice and snow may accumulate on the surface of the photovoltaic panel 400, resulting in a decrease in the power generation efficiency of the photovoltaic panel 400. By arranging the electric heating element 410 in the photovoltaic panel 400, the electric heating element 410 can be started when needed, ice and snow on the surface of the photovoltaic panel 400 are melted, the power generation performance of the photovoltaic panel 400 is recovered, and the normal operation of the photovoltaic power generation device under severe weather conditions is ensured.

In the present embodiment, the controller 700 is powered by the photovoltaic energy storage 900, and the pressure sensor 800, the telescopic support 500, and the electric heating element 410 are powered by the controller 700.

In other embodiments, the controller 700, pressure sensor 800, telescoping support 500, and electrical heating element 410 are all electrically connected to the photovoltaic energy storage 900, and are all powered by the photovoltaic energy storage 900.

In some embodiments, the photovoltaic power generation device is not provided with a photovoltaic energy storage, and the controller 700, pressure sensor 800, telescoping support 500, and electrical heating element 410 are all powered by the photovoltaic panel 400. In the embodiment, the cost can be reduced and the electric energy conversion efficiency of the power generation system can be improved without adopting a photovoltaic energy accumulator.

In the present invention, the electric heating element 410 is a resistance wire or a heat generating film, but the present invention is not limited to the type of the electric heating element 410 as long as melting ice and snow can be achieved.

The embodiment of the invention also provides a using method of the photovoltaic power generation device, wherein the photovoltaic power generation device is any one of the photovoltaic power generation devices, and the photovoltaic power generation device comprises a telescopic support piece and a movable frame; referring to fig. 17, the method for using the photovoltaic power generation device includes:

S100, acquiring a wind power value of an environment where the photovoltaic power generation device is located;

s200, if the wind power value is greater than or equal to a preset wind power value, controlling the telescopic end of the telescopic support piece to drive the movable frame to be in a supporting state;

and S300, if the wind power value is smaller than the preset wind power value, controlling the telescopic end to drive the movable frame to be in a switching state.

In particular, the wind force value refers to the magnitude of the wind speed in the environment in which the photovoltaic power generation device is located. It is typically expressed in meters per second (m/s) for measuring the intensity of wind. The environment refers to the surrounding natural environmental conditions in which the photovoltaic power generation device is located, including climate, weather, geographic location, and the like.

In this embodiment, the wind power value of the environment where the photovoltaic power generation device is located may be monitored in real time by installing a wind speed sensor or a wind meter, and these devices may obtain the data of the wind power value by measuring the flow rate of wind, or may obtain the wind power value estimated by weather forecast by a person or a controller, and then transmit these data to the controller for processing.

The wind speed condition in the environment can be known in real time by acquiring the wind power value of the environment where the photovoltaic power generation device is located. If the wind power value is greater than or equal to the preset wind power value, the wind speed in the environment is high, and the stability of the photovoltaic power generation device can be affected. Under the condition, the controller can correspondingly take measures to drive the telescopic end of the telescopic support piece to be in a supporting state so as to increase the stability of the supporting structure and prevent the photovoltaic panel from being damaged due to the influence of wind. Otherwise, if the wind power value is smaller than the preset wind power value, the wind speed in the environment is relatively weak, and at the moment, the controller can switch the telescopic end driving movable frame to the unfolding state so as to keep the normal operation of the photovoltaic power generation device under the condition of low wind speed. Through monitoring the wind power value in real time and making corresponding control, the safe operation of the photovoltaic power generation device in different wind speed environments can be effectively ensured.

In some embodiments, the preset wind force value may be obtained according to design requirements of the photovoltaic power generation device. In particular, it is necessary to determine the appropriate wind force value according to the design strength of the support mechanism and the safety requirements of the photovoltaic panel, as well as the requirements of other related equipment. Thus, the stability and the safety of the photovoltaic power generation device under different wind conditions can be ensured.

In other embodiments, if similar operational experience exists in the environment of the photovoltaic power generation device, the predetermined wind force value may be determined based on the experience. The experience summary is helpful for more accurately estimating the wind power value required by the photovoltaic power generation device, and repeated exploration and practice are avoided.

In addition, in order to ensure the safety of the photovoltaic power generation device under extreme meteorological conditions, a certain safety margin is generally added on the basis of a preset wind power value. Therefore, the method can cope with sudden strong wind or unpredictable extreme weather conditions, and ensures the stable operation and long-term safety of the photovoltaic power generation device.

In one possible embodiment, the method for using a photovoltaic power generation device further includes:

in the unfolding state, acquiring the pressure between the fixed frame and the movable frame;

when the pressure is larger than or equal to a first preset pressure or the pressure is smaller than or equal to a second preset pressure, the wind force value is larger than or equal to a preset wind force value when the first preset pressure is larger than or equal to the second preset pressure, and the telescopic end of the telescopic support piece is controlled to drive the movable frame to be in a supporting state;

When the pressure is smaller than the second preset pressure and the pressure is larger than the first preset pressure, the wind force value is smaller than the preset wind force value, and the movable frame is controlled to maintain the unfolding state.

Specifically, in the expanded state, the pressure between the fixed frame and the movable frame is acquired: and a pressure sensor is arranged between the fixed frame and the movable frame, so that a pressure value between the fixed frame and the movable frame is obtained in real time.

Setting a first preset pressure and a second preset pressure: according to specific design requirements and actual conditions, a first preset pressure and a second preset pressure are set, and the two preset pressure values are set according to structural characteristics of the photovoltaic power generation device and stability of a supporting system.

Judging the relation between the wind power value and a preset wind power value: comparing the obtained pressure value with a first preset pressure and a second preset pressure, and judging whether the wind power condition in the current environment accords with a preset wind power value range according to a comparison result.

Controlling the telescopic end of the telescopic support piece: and controlling the telescopic end of the telescopic support piece according to the judgment result of the wind power condition so as to realize the adjustment of the supporting state or the unfolding state.

When wind is blown from the back-to-front side of the movable frame to the movable frame, the pressure between the movable frame and the fixed frame increases when the wind force is large. If the pressure is larger than or equal to the first preset pressure at this time, the wind force value is larger than or equal to the preset wind force value, and the photovoltaic power generation device needs to take a supporting state to keep stability and safety.

When wind blows from the sunny side of the movable frame to the movable frame, the pressure between the movable frame and the fixed frame can be reduced under the condition of high wind force. If the pressure is smaller than or equal to the second preset pressure and the pressure is larger than the first preset pressure, the wind force value is larger than or equal to the preset wind force value, and the photovoltaic power generation device is required to be in a supporting state so as to prevent the device from being damaged or unstable.

When the pressure is less than the second preset pressure and the pressure is greater than the first preset pressure, the wind force value is less than the preset wind force value no matter in which direction the wind blows. Under the condition, the photovoltaic power generation device controls the movable frame to maintain the unfolding state, and the stability of the photovoltaic panel is not affected by the unfolding state of the movable frame because the wind force is small.

It should be noted that, in this embodiment, the wind direction is not required to be detected, only the pressure is required to be detected, and the magnitude of the pressure reflects the direction and magnitude of the wind.

In the winter, the snow fall exists in the northern desert area, the photovoltaic panel cannot generate electricity after the snow fall covers the photovoltaic panel, and under the condition, resistance wires can be integrated in the photovoltaic module to heat and remove snow and ice, but at the moment, the photovoltaic panel is covered by thick snow, and no power can be used for heating the resistance wires.

To the above technical problem, in one embodiment, the photovoltaic power generation device further includes a photovoltaic energy storage, the photovoltaic panel is electrically connected with the photovoltaic energy storage, an electric heating element is disposed in the photovoltaic panel, at least two photovoltaic power generation devices are provided, and the use method of the photovoltaic power generation device further includes:

s400, acquiring the generated energy of at least two photovoltaic power generation devices;

specifically, an electric energy meter or sensor may be installed on each photovoltaic power generation device, and the electric energy meter or sensor may monitor the power generation amount of the photovoltaic power generation device in real time and transmit data to the controller.

S500, if the generated energy of more than two photovoltaic power generation devices is zero, controlling the telescopic end of the photovoltaic power generation devices with the generated energy of zero to drive the movable frame to be continuously switched between a supporting state and an unfolding state so as to enable the generated energy to be larger than zero;

the controller will periodically or continuously check the power generation of each photovoltaic power generation device. If the power generation amount of two or more photovoltaic power generation devices is found to be zero, it is considered that these devices may be affected by ice and snow cover or pollution or the like to cause failure of power generation. In order to enable the generated energy to be larger than zero, the controller can control the telescopic end of the telescopic support piece of the photovoltaic power generation device with the generated energy to be zero, so that the movable frame is continuously switched between the support state and the unfolding state.

In some embodiments, the alarm is controlled to alarm if the power generation capacity of only one photovoltaic power generation device is zero.

When the controller judges the generated energy of the photovoltaic power generation devices, if the generated energy of only one photovoltaic power generation device is found to be zero and the generated energy of other photovoltaic power generation devices is larger than zero, an alarm is triggered, an alarm signal is sent, and a user or maintenance personnel is prompted that a problem may occur in the photovoltaic power generation device.

The flexible supporting piece of the photovoltaic power generation device with zero generating capacity is switched and controlled, and the movable frame is continuously switched between the supporting state and the unfolding state, so that pollutants on the photovoltaic panel can be helped to be removed. In the unfolded state, the telescopic support piece can enable the movable frame to be separated from the support mechanism, so that the photovoltaic panel vibrates, and ice and snow can be removed. Under the support state, the movable frame is abutted with the support mechanism, and the photovoltaic panel is restored to the normal power generation state. Through constantly switching the state, ice and snow affecting power generation can be effectively removed, and the photovoltaic power generation device can regenerate electric energy.

S600, controlling the telescopic end to drive the movable frame to be in an unfolding state;

After the photovoltaic panel is restored to a normal power generation state, the telescopic support piece of the photovoltaic power generation device is controlled, so that the movable frame is in an unfolding state.

The photovoltaic power generation device is controlled in an unfolding state, and the telescopic supporting piece enables the movable frame to be separated from the supporting mechanism, so that the photovoltaic panel is fully exposed to illumination, sunlight is absorbed to the greatest extent, and electric energy is generated. Therefore, the highest power generation efficiency can be realized, and the solar energy resources in the environment are fully utilized.

And S700, controlling the electric heating element to be turned on so as to melt ice on the photovoltaic panel.

By turning on the electric heating element, heat can be provided to the photovoltaic panel to melt the ice and snow. The melted photovoltaic panel can absorb sunlight more effectively, and the power generation efficiency is improved. In addition, the load of the photovoltaic panel can be reduced by melting ice and snow, the structural stress is lightened, and the service life of the photovoltaic power generation device is prolonged.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (10)

1. A photovoltaic power generation device, comprising:

a support mechanism;

the fixed frame is fixedly connected to the supporting mechanism and is obliquely arranged relative to the supporting mechanism;

the movable frame and the fixed frame are respectively positioned at two sides of the supporting mechanism, and the movable frame is rotationally connected with the fixed frame;

at least two photovoltaic plates, wherein at least one photovoltaic plate is fixedly connected to the fixed frame, and at least one photovoltaic plate is fixedly connected to the movable frame;

the telescopic support piece is fixedly connected to the support mechanism and is provided with a telescopic end which is in sliding connection with the movable frame;

the movable frame has an expanded state and a supporting state: when in a supporting state, the telescopic end compresses and drives the movable frame to rotate relative to the fixed frame so as to enable the movable frame to be in abutting connection with the supporting mechanism, and the fixed frame and the movable frame form an inverted V-shaped structure; when the movable frame is in the unfolding state, the telescopic end stretches and drives the movable frame to be separated from the supporting mechanism, so that the fixed frame and the movable frame are located on the same plane.

2. The photovoltaic power generation device of claim 1, wherein the support mechanism comprises:

a main support rod;

the first connecting piece is fixedly connected with the end part of the main supporting rod;

one end of the first auxiliary supporting rod is fixedly connected with the first connecting piece, and the other end of the first auxiliary supporting rod is fixedly connected with the fixed frame;

the second auxiliary supporting rod, one end of the second auxiliary supporting rod with first connecting piece fixed connection, the other end of the second auxiliary supporting rod be used for with the movable frame butt.

3. The photovoltaic power generation device of claim 2, wherein the support mechanism further comprises:

the fastening piece is fixedly arranged on the main support rod and fixedly connected with the telescopic support piece;

the at least two longitudinal reinforcing rods are arranged on the periphery of the main support rod, and the fastening piece is connected with the first connecting piece through the longitudinal reinforcing rods;

the fixed frame is connected with the fastener through the inclined stay bar;

at least one first connecting rod through which the longitudinal reinforcing rod is connected with the diagonal brace;

And the longitudinal reinforcing rod is connected with the telescopic support piece through the second connecting rod.

4. A photovoltaic power generation device according to claim 3, wherein the fastener comprises two hoops and a welding plate, the two hoops being clamped on the main support bar, the two hoops clamping part of the longitudinal reinforcement bar, part of the diagonal brace bar and part of the telescopic support;

the welding plate is arranged on the anchor ear, and the longitudinal reinforcing rods, the diagonal bracing rods and the telescopic supporting pieces are welded with the welding plate.

5. The photovoltaic power generation device according to any one of claims 1 to 4, wherein a pulley is connected to the telescopic end, a rolling shaft is arranged in the middle of the pulley, a connecting plate is arranged on one surface of the movable frame, which faces away from the photovoltaic panel, and a connecting hole is formed in the connecting plate, and the rolling shaft penetrates through the connecting hole so that the pulley slides along the connecting hole.

6. The photovoltaic power generation apparatus according to any one of claims 1 to 4, further comprising a controller, wherein an end of one of the fixed frame and the movable frame toward the other is provided with a pressure sensor, and wherein the pressure sensor and the telescopic support are each electrically connected to the controller, wherein the pressure sensor is configured to detect a pressure between the fixed frame and the movable frame, and wherein the controller is configured to acquire the pressure between the fixed frame and the movable frame in a deployed state; when the pressure is larger than or equal to a first preset pressure or the pressure is smaller than or equal to a second preset pressure, the wind force value is larger than or equal to a preset wind force value when the first preset pressure is larger than or equal to the second preset pressure, and the telescopic end of the telescopic support piece is controlled to drive the movable frame to be in a support state; when the pressure is smaller than the second preset pressure and the pressure is larger than the first preset pressure, the wind force value is smaller than the preset wind force value, and the movable frame is controlled to maintain the unfolding state.

7. The photovoltaic power generation device of claim 6, further comprising a photovoltaic energy store, wherein the photovoltaic panel and the controller are each electrically connected to the photovoltaic energy store, wherein the photovoltaic energy store is configured to store electrical energy generated by the photovoltaic panel, and wherein the controller is powered by the photovoltaic energy store;

an electric heating element is arranged in the photovoltaic panel and is electrically connected with the controller, and the electric heating element is used for melting ice on the photovoltaic panel.

8. A method of using a photovoltaic power plant, characterized in that the photovoltaic power plant is a photovoltaic power plant according to any one of claims 1 to 7, comprising a telescopic support and a movable frame; the using method of the photovoltaic power generation device comprises the following steps:

acquiring a wind power value of an environment where the photovoltaic power generation device is located;

if the wind power value is larger than or equal to a preset wind power value, controlling the telescopic end of the telescopic support piece to drive the movable frame to be in a supporting state;

and if the wind power value is smaller than the preset wind power value, controlling the telescopic end to drive the movable frame to be in a switching state.

9. The method of using a photovoltaic power generation apparatus according to claim 8, further comprising:

In an unfolding state, acquiring pressure between a fixed frame and a movable frame of the photovoltaic power generation device;

when the pressure is larger than or equal to a first preset pressure or the pressure is smaller than or equal to a second preset pressure, the wind force value is larger than or equal to a preset wind force value when the first preset pressure is larger than or equal to the second preset pressure, and the telescopic end of the telescopic support piece is controlled to drive the movable frame to be in a support state;

when the pressure is smaller than the second preset pressure and the pressure is larger than the first preset pressure, the wind force value is smaller than the preset wind force value, and the movable frame is controlled to maintain the unfolding state.

10. The method of using a photovoltaic power plant according to claim 8 or 9, further comprising a photovoltaic energy storage, the photovoltaic panel being electrically connected to the photovoltaic energy storage, an electrical heating element being disposed within the photovoltaic panel, at least two of the photovoltaic power plants being provided, the method of using a photovoltaic power plant further comprising:

acquiring the generated energy of at least two photovoltaic power generation devices;

if more than two photovoltaic power generation devices generate zero power, controlling the telescopic ends of the photovoltaic power generation devices with the generated zero power to drive the movable frames to continuously switch between the supporting state and the unfolding state so that the generated power is larger than zero;

Controlling the telescopic end to drive the movable frame to be in an unfolding state;

and controlling the electric heating element to be started so as to melt ice on the photovoltaic panel.