CN113572413A

CN113572413A - Supporting structure and multipoint-supporting tracking type photovoltaic system

Info

Publication number: CN113572413A
Application number: CN202110900167.3A
Authority: CN
Inventors: 许利强; 缪嘉鹏; 孙辉
Original assignee: Wuxi Haoyang Smart Energy Co ltd
Current assignee: Wuxi Haoyang Smart Energy Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2021-10-29

Abstract

The application provides a pursuit formula photovoltaic system that bearing structure, multiple spot supported, bearing structure includes: a column; the first supporting rod is arranged on the upright post and connected with the upright post; the connecting plate is at least arranged at one of the two ends of the first supporting rod and is connected with the first supporting rod; the second supporting rod is arranged on one side of the connecting plate opposite to the side connected with the first supporting rod and connected with the connecting plate; and the third supporting rod is arranged on one side of the connecting plate opposite to the side where the first supporting rod is connected and connected with the connecting plate and the second supporting rod. The support structure is applied to a tracking type photovoltaic system supported by multiple points, so that an implementation mode with low support cost is realized.

Description

Supporting structure and multipoint-supporting tracking type photovoltaic system

Technical Field

The application relates to the technical field of solar energy, in particular to a tracking type photovoltaic system supported by a supporting structure and multiple points.

Background

With the increasing tension of world energy sources, our need for "resource renewable" has emerged. This is particularly true of the electrical requirements. The resource regeneration can be realized by various modes such as hydroelectric power generation, wind power generation, solar power generation and the like. The photovoltaic power generation is carried out by adopting solar energy, and the renewable electric energy resources are realized by irradiating a photovoltaic panel arranged on a photovoltaic support through the sun. The photovoltaic power generation has the advantages of no noise, no pollution emission, short construction period and short time for obtaining energy.

In the process of realizing the prior art, the inventor finds that:

in the laying and installing process of the photovoltaic support, due to the reasons of terrain or cost requirements, the span between the supporting structures for supporting the photovoltaic support needs to be large as much as possible, the span of the supporting structures is large, the cross section of a beam for supporting the photovoltaic support by the supporting structures needs to be large as much as possible, and the corresponding cost can be increased. If not adopting this mode then can cause the crossbeam that bearing structure supported the photovoltaic support to support intensity and reduce, simultaneously, its amount of deflection also can descend, and then leads to the bearing structure who supports the photovoltaic support to cause the quality problem.

Therefore, there is a need to provide a solution for a lower cost support structure.

Disclosure of Invention

The embodiment of the application provides a lower bearing structure's of cost technical scheme for solve among the prior art photovoltaic support bearing structure intensity and the problem that the amount of deflection descends under the great condition of span.

Specifically, a support structure includes:

a column;

the first supporting rod is arranged on the upright post and connected with the upright post;

the connecting plate is at least arranged at one of the two ends of the first supporting rod and is connected with the first supporting rod;

the second supporting rod is arranged on one side of the connecting plate opposite to the side connected with the first supporting rod and connected with the connecting plate;

and the third supporting rod is arranged on one side of the connecting plate opposite to the side where the first supporting rod is connected and connected with the connecting plate and the second supporting rod.

Further, the distance ratio of the first support rod to the connecting plate at the connecting position, from the upper end surface of the connecting plate in the vertical direction to the lower end surface is 1: 5 to 1: 2.

Furthermore, the first support rod connected with the connecting plate is positioned at the first position of the connecting plate, and the second support rod connected with the connecting plate is positioned at the second position of the connecting plate;

the second position of the second supporting rod connecting plate is vertically below the first position of the first supporting rod connecting plate.

Furthermore, the second supporting rod is an independent second supporting rod or a plurality of second supporting rods which are distributed and set up.

Furthermore, the plurality of distributed second supporting rods at least comprise a bearing part for auxiliary supporting and a connecting part for connecting the bearing rod and the connecting plate;

and the bearing part and the connecting part of the second supporting rod are provided with angle adjusting devices for adjusting the included angle between the bearing part and the connecting part of the second supporting rod.

Furthermore, an angle-adjustable device is further arranged between the stand column and the first support rod connected with the stand column and used for adjusting the angle between the first support rod and the stand column.

Further, adjust the angle between first bracing piece and the stand, specifically include:

adjusting the included angle between the first support rod and the upright column in the horizontal direction;

and adjusting the included angle between the first supporting rod and the upright column in the vertical direction.

A multi-point supported tracking photovoltaic system, comprising:

a photovoltaic panel assembly for converting light energy into electrical energy;

a plurality of support structures for supporting the photovoltaic panel assembly and adjustably changing the orientation of the photovoltaic support to receive light energy at an appropriate angle;

the motor driving component is used for driving the plurality of supporting structures to actuate according to a preset movement mode;

the control assembly is electrically connected with the photovoltaic panel assembly and the motor driving assembly and is used for controlling the motor driving assembly to adjust the plurality of supporting structures according to a preset movement mode;

wherein the support structure comprises:

a column;

Further, the motor driving component is used for driving the supporting structure to actuate according to a preset movement mode;

the motor driving component drives the supporting structures to actuate according to a preset movement mode to drive at least one supporting structure to realize the purpose.

Further, the distance between the plurality of support structures is set according to the specific size of the support structures.

The technical scheme provided by the embodiment of the application at least has the following beneficial effects: the supporting structure can still ensure the strength and deflection of the supporting structure under the condition of large span. The support structure is applied to a tracking type photovoltaic system supported by multiple points, so that the problem caused by the quality of the support structure due to the fact that the cost is too high in the prior art is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic view of a support structure provided in an embodiment of the present application.

Fig. 2 is a schematic view of a support structure according to another embodiment provided in this application.

Fig. 3 is a schematic structural diagram of a tracking photovoltaic system supported by multiple points according to an embodiment of the present disclosure.

Multi-point supported tracking photovoltaic system 100

Support structure 10

Alternative support structure 20

Column 101

First support bar 102

Connecting plate 103

Second support bar 104

Third support bar 105

Fastening device 106

Photovoltaic panel assembly 11

Motor drive assembly 12

Control assembly 13

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1, the present application discloses a support structure 10, comprising:

a column 101;

a first support bar 102 provided on the column 101 and connected to the column 101;

a connecting plate 103 disposed at least at one of the two ends of the first supporting rod 102 and connected to the first supporting rod 102;

a second support rod 104 arranged on the opposite side of the connection plate 103 to the first support rod 102 and connected with the connection plate 103;

and a third support bar 105 which is arranged on the opposite side of the connecting plate 103 connected with the first support bar 102 and connected with the connecting plate 103 and the second support bar 104.

As shown in fig. 1, the columns 101 are the foundation upon which the entire support structure 10 is supported. When the design of the upright 101 is selected, a material with higher hardness and a shape with higher supporting force should be selected, so that the upright 101 has certain supporting force to support other parts designed on the upright 101. Moreover, while the upright column 101 is selected and designed to be a part requiring a large supporting force to support, considering the increase of the volume of the upright column 101, the material consumption and the cost are inevitably increased, the material of the upright column 101 can be removed to a certain extent without affecting the supporting force of the upright column 101, that is, the cost can be reduced by ensuring the supporting force of the upright column 101. Meanwhile, the upright 101 serves as a base for supporting the supporting structure 10, and the selected material may be steel or aluminum material, so as to provide a certain strength for supporting. In an actual application scene, the upright column 101 can be buried 0.5m to 2 m underground to ensure the stability of the upright column 101, holes can be drilled at the set positions of the upright column 101, and the upright column 101 is fixed at the drilling positions through bolts. Thereby fixing the column 101. It is understood that the specific shape, material selected and manner of fixing the pillar 101 described herein should not be construed as limiting the scope of the present patent application.

And a first support bar 102 disposed on the column 101 and connected to the column 101. The first support bar 102 is an intermediate part of the support structure 10, and is the most important part of the intermediate parts of the support structure 10. The strength of the first support bar 102, and the material selected for use, also requires that the material be selected to be the same as the material of the upright 101 or stronger than the material of the upright 101. The first support rod 102 disposed on the vertical column 101 and connected to the vertical column 101 may be disposed at an end of the vertical column 101 that is not fixed to the ground, or may be disposed at a fixed position or a movable and non-fixed position on the vertical column 101. It will be appreciated that if the first support bar 102 is located at a non-ground-fixed end of the column 101 or at a fixed position on the column 101, the height of the column 101 may be redesigned to meet the requirement that the first support bar 102 be located at a certain height on the ground if the height of the column 101 does not meet the predetermined design. When the first supporting rod 102 is disposed at a movable and non-fixed position of a section of the upright 101, the required height of the supporting rod can be satisfied by moving with a small distance.

Similarly, the first supporting rod 102 may be connected to the upright 101 at a central position of the supporting rod, or may be connected to the upright 101 at another position other than the central position of the first supporting rod 102. Considering that, after the vertical columns 101 of the first support structures 10 are installed, it is likely that the first support bar 102 needs to be shifted by a certain position due to the fact that the vertical columns 101 and the vertical columns 101 are not laid in a straight line, so that the support bars are aligned with two ends of the support bar of another support structure 10. Similarly, it is considered that an angle adjusting device can be installed between the first supporting rod 102 and the vertical column 101, and the angle adjusting device can adjust the angle between the first supporting rod 102 and the vertical column 101 in the horizontal direction or the vertical direction, and in this case, the position where the first supporting rod 102 is connected to the vertical column 101 is particularly important. For example, where the first strut 102 is connected to the upright 101 at a non-central location relative to the central location of the first strut 102 connected to the upright 101, the longer portion of the first strut 102 where the first strut 102 is connected to the upright 101 will be raised or lowered to a greater extent, and thus to a greater extent, the object supported by the support structure 10. It will be appreciated that the angle adjustment means described herein can adjust the angular relationship between the first support bar 102 and the upright 101. Whether angle adjustment means are provided in the application, and when the angle is adjusted, the range of the angle adjustment, obviously do not constitute a limitation to the scope of protection of the present application.

And a connecting plate 103 connected to the first supporting rod 102 and disposed at least at one of the two ends of the first supporting rod 102. The connecting plate 103 is connected to at least one end of the first supporting rod 102, and when the first supporting rod 102 changes its angle in the horizontal or vertical direction, the connecting plate 103 also moves along with the first supporting rod 102. The connection between the connection plate 103 and the first support rod 102 is a fixed connection, that is, it can be fixed to one of the two ends of the first support rod 102 by welding or other means. In a preferred embodiment provided by the present application, two ends of the first supporting rod 102 are respectively and fixedly connected with a connecting plate 103, and the connecting plate 103 is further provided with through holes around the connecting position of the first supporting rod 102 for fixing a support on the connecting plate 103 connected with the first supporting rod 102. The specific dimension of the connecting plate 103 is determined according to the cross section of the first supporting rod 102. For example, if the cross section of the first support bar 102 is 2cmX4cm and the cross-sectional area is 8 square centimeters, the specific size of the connecting plate 103 can be designed to be 5cmX15cm and the cross-sectional area is 75 square centimeters. Meanwhile, the thickness of the connecting plate 103 is 0.5mm to 1.5 mm. It should be understood that the specific form of the connection between the connection plate 103 and the first support bar 102 is not limited to the specific protection scope of the present application.

The connecting plate 103 may also be designed as an integrated connecting plate 103 connected to two ends of the first supporting rod 102, that is, the two ends are the connecting plates 103, and the middle is connected by one rod or a plurality of rods, it can be understood that the specific connection form of the connecting plate 103 obviously does not limit the scope of the present application.

The material of the connecting plate 103 may be selected from a steel plate with a relatively hard material, or another metal plate, and the material of the first supporting rod 102 may be the same as or different from the material of the metal plate, and it should be understood that the selection of the materials of the connecting plate 103 and the first supporting rod 102 obviously does not limit the scope of the present application.

And the second support rod 104 is arranged on the opposite side of the connecting plate 103 connected with the first support rod 102 and connected with the connecting plate 103. The second support bar 104 is used for supporting the third support bar 105. For example, one end of the second support bar 104 is connected to the connection plate 103, and the other end supports the third support bar 105. The middle portion of the second support bar 104 may be connected to the connection plate 103, and both ends of the second support bar 104 may support the third support bar 105.

It should be noted that the second support bar 104 is used to support the third support bar 105. When the second support bar 104 is connected to the connection plate 103, the third support bar 105 may be in a non-connected state with the connection plate 103, or may be connected by a bolt connection or other connection. When one end of the second support bar 104 is connected to the connection plate 103 and the other end supports the third support bar 105, it can be considered that the position where the second support bar 104 is connected to the connection plate 103 may be above the position of the third support bar 105 or below the third support bar 105. In a preferred embodiment provided by the present application, a position where one end of the second support bar 104 is connected to the connection plate 103 is located below the third support bar 105, and the other end of the second support bar 104 supports the third support bar 105. It is understood that the position where one end of the second support bar 104 is connected to the connecting plate 103 is located below the third support bar 105, and may also have the same function of supporting the third support bar 105 as the other end of the second support bar 104.

And a third support bar 105 which is arranged on the opposite side of the connecting plate 103 connected with the first support bar 102 and connected with the connecting plate 103 and the second support bar 104. The third support bar 105 may or may not be fixed to the connection plate 103. It is understood that the cross section of the third support bar 105 is herein considered as a square support bar, but in practical application scenarios, the cross section may have other representations. When the cross section is in other representation forms, the support positions of the connecting plate 103 and the second support bar 104 connected with the third support bar 105 need to be determined according to the actual form of the third support bar 105. As shown in fig. 1 for a single support structure 10 and fig. 2 for three support structures 10, it is understood that the third support bar 105 may have a plurality of expressions, one of which may be the third support bar 105 of the single support structure 10, and the other expression may be the third support bar 105 of the three support structures 10. The third support bar 105 of a single support structure 10 may be set to 3-5 m, and the three support structures 10 may be formed by connecting three third support bars, or may be replaced by a single bar having the same length as the third support bar 105 of the three support structures. It will be appreciated that fig. 2 shows three support structures 10, but may also represent several support structures other than a single support structure 10. The number of support structures includes both a single support structure of fig. 1 and 3 or another number of support structures.

As shown in fig. 1, a fastening device 106 is further provided in the supporting structure 10 for reinforcing the connection relationship. For example, the fastening device 106 may be disposed between the third support bar 105 and the second support bar 104, and the fastening device 106 may also be disposed between the third support bar 105 and the connecting plate 103. The form of the fastening device for reinforcing the connection relationship can be that the connection relationship is reinforced by bolt connection or welding. In a preferred embodiment provided by the present application, the fastening means 106 consists of a nut and a bent rod with threads at both ends.

As shown in the supporting structure 10 of fig. 1, the supporting structure is composed of a vertical column 101, a first supporting rod 102, two connecting plates 103, four second supporting rods 104 and two third supporting rods 105, and is used for supporting a supporter with a small area. As shown in the alternative supporting structure 20 of fig. 2, the alternative supporting structure 20 is formed by combining a plurality of vertical columns 101, a plurality of first supporting bars 102, a plurality of connecting plates 103, a plurality of second supporting bars 104 and a single third supporting bar 105 to support a large-area supporter. It will be appreciated that varying the number of support elements in the support structure 10 and the size of the third support bar 105 in the support structure 10 can be used to support different sizes of supports. And obviously do not constitute a limitation to the scope of protection of the present application.

Further, in a preferred embodiment provided by the present application, a ratio of a distance between a joint of the first support rod 102 and the connecting plate 103 and a vertical upper end surface and a vertical lower end surface of the connecting plate 103 is in a range of 1: 5 to 1: 2.

It is understood that, here, the ratio of the distance between the connection point of the first support rod 102 and the connection plate 103 and the distance between the upper end surface and the lower end surface in the vertical direction of the connection plate 103 is 1: 5 to 1: 2, also taking into account the overall performance of the entire support structure 10. The connection between the first support bar 102 and the connection plate 103 only needs to be stable to some extent in the usual connection. In the present application, the connecting plate 103 is not only connected to the first supporting rod 102, but also connected to the second supporting rod 104 to further support the third supporting rod 105, which may cause an increase in the design size of the connecting plate 103, and the size of the first supporting rod 102 is unchanged, and the ratio between the connecting plate 103 and the first supporting rod 102, i.e. the distance ratio between the joint of the first supporting rod 102 and the connecting plate 103 and the vertical upper end face and the vertical lower end face of the connecting plate 103, should be ensured as much as possible, so as to achieve a more stable supporting effect of the supporting structure 10.

Experiments and practices show that the distance ratio of the joint of the first support rod 102 and the connecting plate 103 to the upper end surface and the lower end surface of the connecting plate 103 in the vertical direction is 1: 5 to 1: 2, the stability of the connection between the first support bar 102 and the connection plate 103 can be ensured, and the other positions where the first support bar 102 and the connection plate 103 are connected can have sufficient space to be connected with the second support bar 104. In an actual application scenario, if the distance ratio of the connection position of the first support rod 102 and the connection plate 103 to the upper end surface and the lower end surface of the connection plate 103 in the vertical direction is less than 1: 5, the performance of the overall support structure 10 is reduced due to the connection of the first support rod 102 and the connecting plate 103; if the ratio of the distance between the joint of the first support rod 102 and the connecting plate 103 and the distance between the upper end surface and the lower end surface in the vertical direction of the connecting plate 103 is greater than 1: 2, the connection between the second support bar 104 and the connecting plate 103 is not adversely affected, and the overall supporting performance of the support structure 10 is also reduced. It is understood that the connection between the connecting plate 103 and the first supporting rod 102 is described herein based on the problem that may occur when the first supporting rod 102 is hollow. If the first support rod 102 is designed to be solid, it obviously results in increased cost. Therefore, the ratio of the distance from the connection point of the first support rod 102 and the connection plate 103 to the upper end surface and the lower end surface of the connection plate 103 in the vertical direction is 1: 5 to 1: 2, obviously due to the considerations in the above mentioned problems. It will be understood that the use of distance ratio ratios outside the range of ratios may still be applied to the support structure 10, but the arrangement is also considered in the above context and obviously does not constitute a limitation to the scope of protection of the present application.

Further, in a preferred embodiment provided by the present application, the first supporting rod 102 connected to the connecting plate 103 is located at a first position of the connecting plate 103, and the second supporting rod 104 connected to the connecting plate 103 is located at a second position of the connecting plate 103; the second position where the second supporting rod 104 is connected with the connecting plate 103 is vertically below the first position where the first supporting rod 102 is connected with the connecting plate 103.

Specifically, the division of the first position and the second position of the connecting plate 103 is not further limiting on the connecting plate 103, but specifically indicates the relationship between the connecting plate 103 and the connecting positions of the first supporting rod 102 and the second supporting rod 104, so as to reflect the connection relationship of the connecting plate 103 in the practical application scene.

It is understood that the second position where the second support bar 104 is connected to the connection plate 103 is vertically below the first position where the first support bar 102 is connected to the connection plate 103. The ratio of the distance between the joint of the first support rod 102 and the connecting plate 103 and the distance between the upper end surface and the lower end surface of the connecting plate 103 in the vertical direction is 1: 5 to 1: 2, in this premise, the connection position of the first support bar 102 and the second support bar 104 on the connection plate 103 will be described to determine the optimal preferred state in this state. It can be appreciated that in this state, the supporting strength and flexibility of the third supporting rod 105 are improved compared to the conventional supporting structure 10, i.e. the third supporting rod 105 is more stable. If the second position where the second supporting rod 104 is connected with the connecting plate 103 is located above or on one side of the first position where the first supporting rod 102 is connected with the connecting plate 103 in the vertical direction, the supporting strength and flexibility provided by the supporting are not as good as the effect in the preferred state through tests.

Further, in a preferred embodiment provided in the present application, the second support bar 104 is a separate second support bar 104 or a plurality of distributed second support bars 104.

Specifically, the second support bar 104 may be a separate second support bar 104 or a plurality of distributed second support bars 104. When the second support bar 104 is a separate second support bar 104, the bars are integrally formed. The independent second support bar 104 may be divided into two parts, the first part is used for supporting the third support bar 105, the second part is used for connecting with the connecting plate 103, the part of the first part for supporting the third support bar 105 may be a single point support, a line support, a surface support, or the first part is used for supporting the third support bar 105 by a plurality of point supports, line supports, surface supports. When the second support bar 104 is a plurality of distributed second support bars 104, the plurality of distributed second support bars 104 may also be divided into two parts, one part is used for connecting the connecting plate 103, the other part is used for supporting the third support bar 105, and the plurality of distributed second support bars 104 supporting the third support bar 105 may also be point support, line support, surface support. In a preferred embodiment provided by the present application, the third support bar 105 is supported by a plurality of second support bars 104 arranged in a distributed manner. One part of the second support rod 104 adopts a surface support to support the third support rod 105, and the other part connected with the surface support extends to the position connected with the connecting plate 103 at a certain inclination angle. It is understood that the specific configuration of the second support bar 104 is not intended to limit the scope of the present application.

Further, in a preferred embodiment provided by the present application, the plurality of distributed second support bars 104 at least include a bearing portion for auxiliary support and a connecting portion for connecting the bearing portion and the connecting plate 103; the bearing part and the connecting part of the second supporting rod 104 are provided with angle adjusting devices for adjusting the included angle between the bearing part and the connecting part of the second supporting rod 104.

Specifically, in a preferred embodiment provided by the present application, the load bearing portion of the second support bar 104 preferably uses a surface support as an auxiliary support. Specifically, the connecting portion of the second support bar 104, which uses the surface support as an auxiliary support, and the connecting plate 103 is at a certain angle. The certain angle may be a fixed angle of 15 degrees or 30 degrees, or an angle adjusting device may be disposed between the bearing portion and the non-bearing portion of the second support bar 104, so as to adjust an appropriate angle according to actual conditions to support the third support bar 105.

It should be noted that the second support bar 104 can be fixed 15 degrees or fixed 30 degrees, or the second support bar 104 is provided with an angle adjusting device, which is adjusted to be a fixed angle or a non-fixed angle, i.e. a step adjustment and a stepless adjustment.

It should be noted that the second support bar 104, the bearing portion for auxiliary support and the connecting portion for connecting the bearing portion and the connecting plate 103 may be connected at a certain angle, or may be connected in an arc shape and form a certain angle. It will be understood that the particular representation of the load bearing portion of the auxiliary support and the connection portion for connecting the load bearing portion to the connection plate 103 obviously does not constitute a limitation to the scope of protection of the present application.

It can be understood that the design of the supporting structure 10 is to solve the increase of the material cost caused by the terrain factor or the material cost factor, and the supporting structure 10 can assist in supporting the third supporting rod 105 by adding the second supporting rod 104 to support the third supporting rod 105, thereby increasing the supporting strength and flexibility of the supporting structure 10.

Further, in a preferred embodiment provided by the present application, an angle-adjustable device is further provided between the upright 101 and the first support bar 102 connected to the upright 101, for adjusting an angle between the first support bar 102 and the upright 101.

Specifically, the design of the angle-adjustable device is based on the fact that the first support rod 102 can be inclined at a certain angle in the horizontal or vertical direction, and the two ends of the first support rod 102, which are demarcated by the upright 101 and the first support rod 102, can be raised at different angles by more or less angles, and at the same time, the raised or lowered positions are more, on the premise that the first support rod 102 is installed at a position other than the center of the upright 101.

It should be noted that the adjustable angle device may be designed independently with respect to the upright 101 and the first supporting rod 102, or may be attached to an adjustable angle device designed on the upright 101 or the first supporting rod 102, and it should be understood that the specific assembly of the adjustable angle device with the position of the upright 101 or the first supporting rod 102 does not obviously limit the protection scope of the present application.

Further, in a preferred embodiment provided in the present application, the adjusting the angle between the first support bar 102 and the upright 101 specifically includes:

adjusting the angle of an included angle between the first support rod 102 and the upright post 101 in the horizontal direction; the angle between the first supporting rod 102 and the vertical column 101 in the vertical direction is adjusted.

Specifically, the angle-adjustable device can adjust the angle of the included angle between the first supporting rod 102 and the upright post 101 in the horizontal direction, and adjust the angle of the included angle between the first supporting rod 102 and the upright post 101 in the vertical direction. In the support structure 10 provided in the present application, the angle-adjustable device is driven by a motor to rotate the angle-adjustable device in a horizontal or vertical direction. The rotation along the horizontal direction or the vertical direction is controlled by angular rotation adjusted according to the number of gears or stepless rotation.

It should be noted that the angle adjusting device can adjust the angle between the first supporting rod 102 and the vertical column 101 in the horizontal direction and the angle between the first supporting rod 102 and the vertical column 101 in the vertical direction, which can be adjusted separately or simultaneously. It can be easily understood that the specific adjustment manner of the angle adjusting device for adjusting the angle between the first supporting rod 102 and the upright 101 in the horizontal direction and the angle between the first supporting rod 102 and the upright 101 in the vertical direction obviously does not limit the protection scope of the present application.

In practical application, the column 101 is fixed to the ground by bolting. The first supporting rod 102 can be provided with an angle-adjustable device according to actual conditions. The connecting plates 103 are welded at two ends of the first supporting rod 102, and the cross-sectional area ratio of the connecting plates 103 to the first supporting rod 102 is 1: 3, the distance ratio of the joint of the first support rod 102 and the connecting plate 103 to the upper end surface and the lower end surface of the connecting plate 103 in the vertical direction is 1: 4. two second support bars 104 are connected to the other side of one end of the connecting plate 103, and the two second support bars 104 are bent bars having an angle of 30 °. The third supporting rod 105 is disposed on the second supporting rod 104, and one of two adjacent surfaces of one surface of the second supporting rod 104 is attached to the connecting plate 103. That is, one side of the connecting plate 103 is connected to the first supporting rod 102, the bottom of the other side is connected to the second supporting rod 104, the third supporting rod 105 is disposed on the second supporting rod 104, and the third supporting rod 105 is attached to the connecting plate 103. One end of each of the two second support bars 104 is connected to the connecting plate 103, and the other end thereof supports the third support bar 105 and is fixed to the third support bar 105 by a fastening device 106. The connecting plate 103 and the third support bar 105 are also fixed by a fastening device 106. It will be understood that the particular embodiment of the support structure 10 described herein is clearly not intended to limit the scope of the present application.

Referring to fig. 3, the present application further provides a tracking photovoltaic system 100 supported at multiple points, including:

a photovoltaic panel assembly 11 for converting light energy into electric energy;

a plurality of support structures 10 for supporting the photovoltaic panel assemblies 11 and adjustably changing the orientation of the photovoltaic mounts to receive light energy at appropriate angles;

the motor driving component 12 is used for driving the plurality of supporting structures 10 to move according to a preset movement mode;

and the control assembly 13 is electrically connected with the photovoltaic panel assembly 11 and the motor driving assembly 12 and is used for controlling the motor driving assembly 12 to adjust the plurality of supporting structures 10 according to a preset movement mode.

The photovoltaic panel assembly 11 is used to convert light energy into electrical energy. The photovoltaic panel assembly 11 may be made primarily of polycrystalline or monocrystalline silicon, or other semiconductor materials having an electro-optical effect. Sunlight impinges on the photovoltaic panel assembly 11 and is absorbed at the interface layer of the photovoltaic panel assembly 11. The photovoltaic panel assembly 11 made of semiconductor material has a PN junction. Photons of sufficient energy in the absorbed sunlight can excite electrons in the PN junction from covalent bonds so as to generate electron-hole pairs. The electrons and holes near the interface layer will be separated from each other by the electric field effect of space charge before recombination. The charge separation at the interface layer will create an outward testable voltage across the PN junction. The more electron-hole pairs are generated at the interface layer of the photovoltaic panel assembly 11 by sunlight, the greater the current. The more light energy absorbed by the interface layer of the photovoltaic panel assembly 11, the larger the interface layer, i.e., the area of the photovoltaic panel assembly 11 that is illuminated, the greater the current generated by the photovoltaic panel assembly 11. The current generated by the photovoltaic panel assembly 11 is collected by the bus wires and can be used as a power source.

A plurality of support structures 10 for supporting the photovoltaic panel assemblies 11 and adjustably changing the orientation of the photovoltaic mounts to receive light energy at appropriate angles.

In particular, the plurality of support structures 10 support the photovoltaic panel assembly 11, and the photovoltaic panel assembly 11 may be supported by a single support structure 10 as shown in fig. 1, or the photovoltaic panel assembly 11 may be supported by a plurality of support structures 10, that is, another support structure 20 supports the photovoltaic panel assembly 11. For example, for a photovoltaic panel of 80cmX100 and 100cm, only a single support structure 10 is required to complete the support, and the third support bar 105 is 100cm-150 cm. If the area of the photovoltaic panel assembly 11 is large, the plurality of supporting structures 10 are required to support the photovoltaic panel assembly 11 together, and in the installation process, the supporting structures 10 can reduce the consumption of material cost and ensure the normal operation of the multipoint-supported tracking type photovoltaic system 100 under the condition that the span of the plurality of supporting structures 10 is large.

Further, in a preferred embodiment provided by the present application, the motor driving assembly 12 is configured to drive the supporting structure 10 to actuate according to a preset movement pattern; the motor driving component 12 drives the support structures 10 to actuate according to a preset movement mode and drives at least one support structure 10 to realize the purpose.

Specifically, the number of the supporting structures 10 supporting the photovoltaic panel assemblies 11 in the multi-point supporting tracking type photovoltaic system 100 is at least one, that is, in the case that the area of the photovoltaic panel assemblies 11 is relatively small, the supporting structures 10 support the photovoltaic panel assemblies 11. Similarly, when the photovoltaic panel assembly 11 requires two support structures 10 to support the photovoltaic panel assembly 11, two support structures 10 are used to support the photovoltaic panel assembly 11. It is understood that by using the present support structure 10 to support the photovoltaic panel assembly 11, a support with a large span between the support structure 10 and the support structure 10 as much as possible can be achieved. For example, instead of using the support structure 10 to support 100cmX1000cm of photovoltaic panel assembly 11, at least 4 previous support structures 10 need to be provided, or the cross section of the support bars in the support structure 10 needs to be increased, and two support structures 10 can be used to support, and one longer third support bar 105 is used instead of the two support structures 10. And the strength and flexibility of the supporting structure 10 are improved compared with the supporting structure 10 in the prior art when the supporting structure 10 rotates in the horizontal direction or the vertical direction.

Further, in a preferred embodiment provided herein, the spacing between the plurality of support structures 10 is set according to the specific size of the support structures 10.

Specifically, the tracking photovoltaic system 100 supported by multiple points is supported by a plurality of support structures 10, the support structures 10 provided herein can achieve greater support than previous spans when supporting the photovoltaic panel assemblies 11, and when the photovoltaic panel assemblies 11 are supported by a plurality of support structures 10, the third support bars 105 in the plurality of support structures 10 define the actual length of the third support bars according to the number of rows or lines in the plurality of support structures 10. The third support bar 105 in the support structure 10 of the present application can ensure that the plurality of support structures 10 together support the photovoltaic panel assembly 11, and the structure of the third support bar 105 in the conventional support structure 10 is more stable when the third support bar 105 is supported by the second support bar 104 and the connection plate 103 connected to the first support bar 102.

In the process of laying and installing the photovoltaic support, due to terrain reasons or cost requirements, the span between the supporting structures for supporting the photovoltaic support needs to be large as much as possible. And the span of the supporting structure is large, so that the cross section of the beam for supporting the photovoltaic bracket by the supporting structure is required to be as large as possible, and the corresponding cost is increased. If the supporting structure 10 is not adopted, the supporting strength of the beam of the supporting structure for supporting the photovoltaic support is reduced, and meanwhile, the deflection of the beam is reduced, so that the quality problem of the supporting structure for supporting the photovoltaic support is caused.

To this end, the present application is based on the fact that the support structure 10 forms a multi-point supported tracking photovoltaic system 100, comprising: a column 101; a first support bar 102 provided on the column 101 and connected to the column 101; a connecting plate 103 disposed at least at one of the two ends of the first supporting rod 102 and connected to the first supporting rod 102; a second support rod 104 arranged on the opposite side of the connection plate 103 to the first support rod 102 and connected with the connection plate 103; and a third support bar 105 which is arranged on the opposite side of the connecting plate 103 connected with the first support bar 102 and connected with the connecting plate 103 and the second support bar 104.

It will be appreciated that the support structure 10 or the further support structure 20, when applied to a multi-point supported photovoltaic tracking system 100, will generally provide an adjustable angle arrangement between the vertical column 101 and the first support bar 103 in terms of orientation with respect to the movement of the sun in the day or year. In practical applications, the third support rod structure 105 of the support structure 10 or the other support structure 20 moves with the angle of the adjustable angle device. The support structure is configured as shown in fig. 1 or fig. 2, considering that the movement of the third support bar 105 also requires a certain strength and flexibility of the support structure. With the support structure shown in fig. 1 or 2, mass problems of the support structure due to changes in the angle of the support structure when supporting a support are avoided.

And the motor driving component 12 is used for driving the plurality of supporting structures 10 to move according to a preset movement mode. The motor drive assembly 12 may include a motor and various stages of gearing. The transmission ultimately transmits power to several support structures 10. The motor driving component 12 is electrically connected with the photovoltaic panel component 11, and the motor driving component 12 is mainly supplied with electric energy by the photovoltaic panel component 11.

It is to be noted in particular that here the motor drive assembly 12 is mainly supplied with electrical energy by said photovoltaic panel assembly 11. It is mainly understood that "in normal use", "according to the normal use scenario faced by the design", the electric energy required by the motor drive assembly 12 is supplied entirely by the photovoltaic panel assembly 11, except for special requirements and engineering redundancy.

The control unit 13 may be implemented by a single chip microcomputer or a microprocessor having a simple function. In a typical configuration, the control component 13 may include one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It should be noted that the representation form of the control component 13 in the specific application may be a single chip, a microprocessor, an integrated circuit, etc. These embodiments should not be construed as limiting the scope of the present application.

Again, it should be reiterated that the motor drive assembly 12 is primarily powered by the photovoltaic panel assembly 11. It is mainly understood that "in normal use", "according to the normal use scenario faced by the design", the electric energy required by the motor drive assembly 12 is supplied entirely by the photovoltaic panel assembly 11, except for special requirements and engineering redundancy.

It is important to emphasize that the motor here can be specifically customized.

Towards the photovoltaic panel assembly 11 with the day adjustment cycle, it is necessary to use motors to drive the movement of several support structures 10. Thus, the motor in the multi-point supported tracking photovoltaic system 100 periodically rotates, and the requirements on the service life and the operational reliability of the motor are high, so that the implementation cost of the multi-point supported tracking photovoltaic system 100 is high. In addition, when the tracking photovoltaic system 100 supported by multiple points is designed, considering the adjustment period in daily units, in order to improve the effective work of the adjustment motor, the weight needs to be reduced as much as possible, and theoretically, the smaller the mass of the support structure 10 is, the higher the effective work of the rotation of the photovoltaic panel assembly 11 is. That is, the weight of the tracking photovoltaic system 100 is required to be reduced toward the multi-point support with the day as the adjustment period. It is understood that the orientation of the photovoltaic panel assembly 11 with the day as the adjustment cycle, in terms of implementation in china, is primarily directed toward adjustment from east to west.

In the direction of the photovoltaic panel assembly 11 with the year as the adjustment cycle, the adjustment of the photovoltaic panel assembly 11 is mainly performed manually. The tracking photovoltaic system 100 supported by multiple points is mainly installed in the field with rich solar energy resources. The photovoltaic panel assembly 11 is adjusted in a year-by-year adjusting period, for example, the orientation of the photovoltaic panel assembly 11 is adjusted every year in four seasons of spring, summer, autumn and winter, and a cycle is completed within one year. The orientation of the photovoltaic panel assembly 11 needs to be adjusted at the installation place of the tracking type photovoltaic system 100 which is specially assigned to multiple points for supporting every season, and the labor cost is also high. It is understood that the photovoltaic panel assembly 11, which is oriented to the year as the adjustment period, is primarily adjusted between different heights in the south in terms of the chinese implementation.

In theory, the photovoltaic panel assembly 11 oriented to the day as the adjustment cycle has a higher power generation efficiency than the photovoltaic panel assembly 11 oriented to the year as the adjustment cycle.

The applicant, in the case of intensive research into two different implementations, found that:

although the power generation efficiency of the photovoltaic panel assembly 11 oriented to the day adjustment period is higher than that of the photovoltaic panel assembly 11 oriented to the year adjustment period in the normal case, once the consideration is given to the failure probability of the motor drive assembly 12, in the tracking type photovoltaic system 100 of the multi-point support in the unit of GW, the improvement ratio of the power generation efficiency of the photovoltaic panel assembly 11 oriented to the day adjustment period is about 1% to 2% relative to that of the photovoltaic panel assembly 11 oriented to the year adjustment period. For a design life cycle of the multi-point photovoltaic tracking system 100 of 20 years, when the multi-point photovoltaic tracking system 100 is used for more than 10 years, the maintenance cost of the motor driving unit 1213 of the multi-point photovoltaic tracking system 100 facing the day adjustment cycle is greatly increased. That is, the tracking pv system 100 is more competitive towards multi-point support with year-based adjustment cycles for a long period as a whole. However, the adjustment time of the multi-point-supported tracking photovoltaic system 100 with the year as the adjustment period is concentrated in several days before or after spring equinox, summer solstice, autumn equinox, and winter solstice. Near these centralized adjustment times, the adjustment can effectively improve the photoelectric conversion efficiency of the multi-point supported tracking photovoltaic system 100 for an adjustment period of years. Limited by the number of operators, overlapping the problem of reduced working population in the future, the deployment scale of the multi-point-supported tracking photovoltaic system 100 with year-based adjustment period is limited, and the use cost will rise significantly in the future.

In the embodiments provided herein, the applicant employs a customized low-power motor to reduce the power requirements of the motor drive assembly 12 and reduce the one-time investment cost of the motor drive assembly 12. This makes large-scale deployment of the motor drive assembly 12 in a multi-point supported tracking photovoltaic system 100 with a year-justified period possible at commercial cost. In the embodiment provided by the present application, since the adjustment of the orientation of the photovoltaic panel assembly 11 is automatically controlled by the control assembly 13, it is possible to complete the change of the orientation of 1 degree within a period from sunset to sunset, for example, 12 hours, and therefore, the requirement on the motor power is extremely low, thereby greatly reducing the implementation cost of the tracking photovoltaic system 100 with multi-point support.

Meanwhile, in order to reduce the dependency of the tracking type photovoltaic system 100 for multi-point support of the photovoltaic panel assembly 11 with a year as an adjustment period on the number of operators, the motor driving assembly 12 is electrically connected with the photovoltaic panel assembly 11, and the motor driving assembly 12 is mainly supplied with electric energy by the photovoltaic panel assembly 11. This was not achievable in the prior art. For the photovoltaic panel assembly 11 oriented to the day as the adjustment period, when the lighting condition is insufficient and the wind resistance requirement is met, if no external power supply supplies power, the photovoltaic panel assembly 11 cannot be adjusted to the proper wind resistance angle, and the photovoltaic panel assembly 11 is extremely easy to damage. For a photovoltaic panel assembly 11 oriented in the year adjustment cycle, due to the concentration of the adjustment time window, if no external power supply is provided and the lighting conditions within the adjustment time window are insufficient, the adjustment task of the photovoltaic panel assembly 11 cannot be completed.

In the embodiment provided by the present application, the motor power in the motor driving assembly 12 is extremely low, and the photovoltaic panel set is adjusted in a year-based period. The control component 13 is electrically connected to the photovoltaic panel component 11 and the motor driving component 12, so that the control component 13 only needs to be set to complete the adjustment of the orientation of the photovoltaic panel component 11 when the lighting conditions allow, in this case, the electric energy formed by the photoelectric conversion of the photovoltaic panel component 11 is enough to complete the adjustment of the orientation of the photovoltaic panel component 11, and no operator is required to participate, and meanwhile, no external power supply is required, so that the implementation cost of the multi-point supported tracking type photovoltaic system 100 is low.

In the embodiment provided by the present application, the motor driving assembly 12 drives some or all of the plurality of supporting mechanisms to achieve the requirement of sufficient light absorption of the photovoltaic panel assembly 11. The motor driving component 12 can be controlled by the control component 13 for adjusting the orientation of the support structure 10 in the day or year, and the positions of the upright posts 101 and the first supporting rods 102 in each support structure 10 or in several support structures 10 can be driven to realize the action according to the preset movement mode. And the control assembly 13 is electrically connected with the photovoltaic panel assembly 11 and the motor driving assembly 12 and is used for controlling the motor driving assembly 12 to adjust the plurality of supporting structures 10 according to a preset movement mode. The control assembly 13 controls the motor driving assembly 12 to adjust the plurality of supporting structures 10 according to a preset movement mode, and can be controlled by a wired connection or a wireless remote control mode. The wireless remote control can be realized by various control modes such as Bluetooth transmission, narrowband Internet of things terminal transmission and the like. It will be understood that the representation of the specific control of the control unit 13 obviously does not constitute a limitation to the scope of protection of the present application.

It should 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, the statement that there is an element defined as "comprising" … … does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A support structure, comprising:

a column;

2. The support structure of claim 1, wherein the ratio of the distance from the connection point of the first support rod to the connection plate to the upper end surface and the lower end surface in the vertical direction of the connection plate is 1: 5 to 1: 2.

3. The support structure of claim 1, wherein the first support bar connected to the connecting plate is located at a first position of the connecting plate and the second support bar connected to the connecting plate is located at a second position of the connecting plate;

4. The support structure of claim 1, wherein the second support bar is a separate second support bar or a plurality of distributed second support bars.

5. The support structure of claim 4, wherein the plurality of distributed second support bars at least comprise a bearing part for auxiliary support and a connecting part for connecting the bearing bar with the connecting plate;

6. The support structure of claim 1, wherein an angle-adjustable device is further provided between the upright and the first support rod connected to the upright for adjusting the angle between the first support rod and the upright.

7. The support structure of claim 6, wherein the adjusting the angle between the first support bar and the upright comprises:

8. A multi-point supported tracking photovoltaic system, comprising:

wherein the support structure comprises:

a column;

9. The multi-point supported tracking photovoltaic system of claim 8, wherein the motor drive assembly is configured to drive the support structure to move in a predetermined motion;

10. The multi-point supported tracking photovoltaic system of claim 8, wherein the spacing between the plurality of support structures is set according to a specific size of the support structures.