CN118054743B

CN118054743B - Photovoltaic power generation flexible regulation support of two-way light following

Info

Publication number: CN118054743B
Application number: CN202410447430.1A
Authority: CN
Inventors: 乔聃; 陈良
Original assignee: Suzhou University
Current assignee: Suzhou University
Priority date: 2024-04-15
Filing date: 2024-04-15
Publication date: 2024-06-18
Anticipated expiration: 2044-04-15
Also published as: CN118054743A

Abstract

The invention relates to the technical field of photovoltaics, in particular to a photovoltaic power generation flexible adjusting bracket for bidirectional light tracking, which comprises a suspension cable, a north-south tracking mechanism, a east-west tracking mechanism and a solar tracker; the two suspension ropes are parallel and tensioned, a plurality of photovoltaic modules are arranged on the suspension ropes, and each photovoltaic module is provided with a rotating shaft; the north-south tracking mechanism is connected with the suspension cable and is used for driving the photovoltaic module to rotate around the north-south adjusting axis to adjust the north-south tracking angle; the north-south direction adjusting axis is vertical to the axis of the rotating shaft; the east-west tracking mechanism is connected with the rotating shaft and is used for driving the photovoltaic module to rotate around the axis of the rotating shaft to adjust the east-west tracking angle; when the photovoltaic modules are in a flat state, an avoidance gap is formed between adjacent photovoltaic modules; the solar tracker is connected with the north-south tracking mechanism and the east-west tracking mechanism and is used for detecting the position of the sun and adjusting the north-south tracking angle and the east-west tracking angle. The invention can accurately adjust the tracking angle of the photovoltaic module, improve the photoelectric conversion efficiency, has simple and compact structure and stable and reliable light-following adjustment.

Description

Photovoltaic power generation flexible regulation support of two-way light following

Technical Field

The invention relates to the technical field of photovoltaics, in particular to a photovoltaic power generation flexible adjusting bracket for bidirectional light following.

Background

As photovoltaic technology has matured, different types of photovoltaic rack systems are rapidly developing, and common photovoltaic rack systems are mainly divided into rigid mounting racks and flexible mounting racks. Rigid mounting brackets typically require a relatively flat mounting base, such as plain areas and roofs. The installation mode has the advantages of good installation stability of the photovoltaic module, convenience in arranging the double-shaft tracking device, and higher requirement on installation environment and higher installation cost. The flexible mounting bracket adopts the flexible suspension cable to support the photovoltaic module, and has the advantages of being applicable to complex terrain environments, for example, being capable of being mounted above rough mountain lands, water areas, ground fixtures and the like, and having lower mounting cost, and the flexible mounting bracket has the defect of being difficult to set up a tracking device and generally having only a single-axis tracking function in the north-south direction or the east-west direction.

Because the flexible mounting bracket can adapt to the complex terrain and has the advantage of better economical efficiency, the flexible mounting bracket currently plays an important role in the whole photovoltaic power generation field. The incident angle of the photovoltaic module is an important condition for determining the conversion rate of photovoltaic power generation, so that the sunlight tracking function is also imperative on the flexible support of photovoltaic power generation. The span of the photovoltaic power generation flexible mounting support is generally larger, the photovoltaic power generation flexible mounting support is generally arranged in the east-west direction, the middle of the suspension cable is inevitably in a sagging state under the influence of gravity, so that the tracking angles of the photovoltaic modules on the suspension cable, especially the tracking angles in the east-west direction, are difficult to unify, the mode of synchronously adjusting the east-west direction angles of each photovoltaic module by using the inhaul cable cannot meet the optimal state of the light incidence angle of each photovoltaic module, and the problem of sunlight tracking, especially double-shaft light tracking, is solved on the photovoltaic power generation flexible mounting support.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defects of difficult adjustment of the incident angle of the photovoltaic module, poor angle consistency and the like of the conventional photovoltaic power generation flexible support, provide the photovoltaic power generation flexible adjustment support capable of tracking light in two directions, accurately adjust the tracking angle of each group of photovoltaic modules, improve the photoelectric conversion efficiency of photovoltaic power generation, and have simple and compact structure and stable and reliable tracking light adjustment.

The invention provides a photovoltaic power generation flexible adjusting bracket for bidirectional light following, which comprises two suspension ropes, wherein the two suspension ropes are parallel and tensioned, a plurality of photovoltaic modules are sequentially arranged on the suspension ropes along the length direction of the suspension ropes, and each photovoltaic module is provided with a rotating shaft; the north-south tracking mechanism is connected with the suspension cable and is used for driving the photovoltaic module to rotate around a north-south adjusting axis so as to adjust a north-south tracking angle of the photovoltaic module; wherein, the north-south direction adjusting axis is vertical to the axis of the rotating shaft; the east-west tracking mechanism is in transmission connection with the rotating shaft and is used for driving the corresponding photovoltaic modules to rotate around the axes of the corresponding rotating shafts so as to adjust east-west tracking angles of the photovoltaic modules; when the photovoltaic modules rotate to a flat state around the axis of the rotating shaft, an avoidance gap is formed between every two adjacent photovoltaic modules; the solar tracker is respectively in communication connection with the north-south tracking mechanism and the east-west tracking mechanism, and is used for detecting and obtaining a solar position, controlling the north-south tracking mechanism to adjust the corresponding north-south tracking angle of the photovoltaic module according to the solar position detected and obtained by the solar tracker, and controlling the east-west tracking mechanism to adjust the corresponding east-west tracking angle of the photovoltaic module.

In one embodiment of the invention, the north-south tracking mechanism is connected with one of the suspension ropes, and comprises a suspension rope lifting assembly and a tensioning assembly; the two groups of the suspension rope lifting assemblies are respectively arranged at two ends of the suspension rope in the length direction; each group of suspension rope lifting components comprises a movable wire passing wheel, the movable wire passing wheels can lift, the movable wire passing wheels are used for enabling the corresponding suspension ropes to bypass, and the suspension ropes between the two movable wire passing wheels are parallel to one another; the relative heights of the two suspension ropes are changed by adjusting the height of the movable wire passing wheel so as to adjust the north-south tracking angle of the photovoltaic module; the tensioning assemblies are provided with one group or two groups, and are arranged at the end part of the suspension rope lifting assembly far away from the other suspension rope lifting assembly; the tensioning assembly comprises a first pulley frame, a second pulley frame, a tensioning rope and a tensioning counterweight component, wherein a plurality of pulleys are arranged on the first pulley frame and the second pulley frame, the first pulley frame is connected with the end part of the corresponding suspension rope, the second pulley frame is fixedly arranged, one end of the tensioning rope is connected with the first pulley frame or the second pulley frame, and the other end of the tensioning rope is wound on the pulleys of the first pulley frame and the second pulley frame in a reciprocating manner and is connected with the tensioning counterweight component; when the suspension cable lifting assembly drives the corresponding suspension cable to lift, the relative distance between the first pulley frame and the second pulley frame is passively adjusted to tension the suspension cable.

In one embodiment of the invention, the device further comprises a supporting frame and a diagonal draw pile; the supporting frame is fixedly arranged and is used for supporting the suspension rope in an elevating manner; the suspension cable lifting assembly comprises lifting seat plates, lifting connecting rods and telescopic driving parts, wherein the movable wire passing wheels are connected with the lifting seat plates, two lifting connecting rods are arranged, the two lifting connecting rods are rotationally connected with the supporting frame and are rotationally connected with the lifting seat plates to form a parallel four-bar mechanism, the telescopic driving parts are rotationally connected with the supporting frame, the driving ends of the telescopic driving parts are rotationally connected with one lifting connecting rod, and the driving ends of the telescopic driving parts move in a telescopic manner to drive the lifting seat plates to lift; the cable-stayed piles are fixedly arranged and are respectively and fixedly connected with the second pulley frame and the suspension cables which are not connected with the north-south tracking mechanism.

In one embodiment of the invention, two groups of fixed wire passing wheels are arranged on the supporting frame, and the two groups of fixed wire passing wheels are respectively arranged opposite to the corresponding movable wire passing wheels; the suspension ropes which are not connected with the north-south tracking mechanism pass through the corresponding fixed wire passing wheels in a winding way along the two ends of the length direction of the suspension ropes and are fixedly connected with the cable-stayed piles.

In one embodiment of the present invention, the device further includes a plurality of fixing brackets, each of the fixing brackets is fixedly connected with the same suspension cable, and one axial end of the corresponding rotating shaft is rotatably connected with the corresponding fixing bracket; the movable brackets are provided with a plurality of movable brackets, each movable bracket is in sliding connection with the other suspension cable, and the other axial end of the corresponding rotating shaft is in rotary connection with the corresponding movable bracket.

In one embodiment of the invention, the east-west tracking mechanism comprises an angle adjusting component and a transmission piece, wherein the angle adjusting component is connected with the fixed bracket or the movable bracket, and the driving end of the angle adjusting component is in transmission connection with the corresponding rotating shaft through the transmission piece.

In one embodiment of the invention, the north-south tracking mechanism comprises a tilt angle adjusting assembly, wherein the tilt angle adjusting assembly is provided with a plurality of tilt angle adjusting assemblies; each inclination angle adjusting component comprises a fixed seat, a photovoltaic bracket, a stay bar, a sliding block, a screw rod, a guide rail and an inclination angle adjusting part; the fixing seat is respectively and fixedly connected with two suspension ropes, one end of the photovoltaic bracket is rotationally connected with the fixing seat, the rotating axis of the photovoltaic bracket is coaxially arranged with the north-south adjusting axis, the other end of the photovoltaic bracket is rotationally connected with one end of the supporting rod, the supporting rod is rotationally connected with the sliding block, the sliding block is in sliding connection with the guide rail, the sliding block is in threaded connection with the screw rod, the guide rail is fixedly connected with the fixing seat, the screw rod is rotationally connected with the fixing seat and axially parallel to the guide rail, the driving end of the inclination angle adjusting component is in transmission connection with the screw rod, and the driving end of the inclination angle adjusting component drives the screw rod to rotate and drives the sliding block to move along the guide rail so as to adjust the north-south tracking angle of the photovoltaic module.

In one embodiment of the invention, the east-west tracking mechanism comprises an angle adjusting component, the angle adjusting component is connected with the photovoltaic bracket, and the driving end of the angle adjusting component is in transmission connection with the corresponding rotating shaft.

In one embodiment of the invention, the device further comprises a bracket mechanism, a diagonal draw pile and a diagonal draw rope; the support mechanism comprises a support frame and an elastic tensioning assembly, the support frame is fixedly arranged, the support frame is used for supporting the suspension ropes in an elevating mode, and at least one end of each suspension rope is connected with the support frame through the elastic tensioning assembly; the elastic tensioning assembly comprises a tensioning spring, a tensioning rod, a limiting piece and a mounting plate, wherein the mounting plate is connected with the supporting frame, the tensioning rod is movably connected with the mounting plate, one end of the tensioning rod is connected with the end part of the suspension cable, the other end of the tensioning rod is connected with the limiting piece, and two ends of the tensioning spring are respectively abutted against the mounting plate and the limiting piece and are in a compression state; the inclined pulling pile is fixedly arranged, and two ends of the inclined pulling rope are respectively connected with the inclined pulling pile and the supporting frame.

In one embodiment of the invention, only one solar tracker is arranged on the photovoltaic modules positioned in the middle of the suspension cable, and each photovoltaic module controls the north-south tracking mechanism and the east-west tracking mechanism by the solar tracker to adjust the north-south tracking angle and the east-west tracking angle of the corresponding photovoltaic module; or a plurality of solar trackers are arranged, the corresponding solar trackers are connected with the corresponding photovoltaic modules, and each photovoltaic module controls the north-south tracking mechanism and the east-west tracking mechanism through the corresponding solar trackers so as to adjust the north-south tracking angle and the east-west tracking angle.

Compared with the prior art, the technical scheme of the invention has the following beneficial effects:

According to the photovoltaic power generation flexible adjusting bracket for the bidirectional light tracking, the bidirectional light tracking of the photovoltaic module is realized on the flexible suspension cable by arranging the suspension cable, the north-south tracking mechanism, the east-west tracking mechanism and the solar tracker. The east-west tracking angle of each photovoltaic module can be independently adjusted, so that the inclination angle of each photovoltaic module can be accurately adjusted even if the suspension cable is in a non-tensioned sagging state, and the photoelectric conversion efficiency of photovoltaic power generation is improved. Adjacent photovoltaic modules are not interfered with each other in east-west direction adjustment, and can stably adjust angles along with the rising and falling of solar east and west, so that the solar east-west direction solar photovoltaic module is simple and compact in structure, and stable and reliable in light-following adjustment.

Drawings

In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which,

Fig. 1 is a perspective view of a first view angle of a photovoltaic power generation flexible adjusting bracket for bidirectional light following in embodiment 1 of the present invention;

fig. 2 is a second perspective view of the photovoltaic power generation flexible adjusting bracket with bidirectional light following in embodiment 1 of the present invention;

FIG. 3 is a schematic diagram of the structure of the east-west tracking mechanism of embodiment 1 of the present invention;

FIG. 4 is a schematic diagram of a north-south tracking mechanism in embodiment 1 of the present invention;

FIG. 5 is a schematic diagram of a partial structure of a north-south tracking mechanism in embodiment 1 of the present invention;

Fig. 6 is a schematic perspective view of a photovoltaic power generation flexible adjusting bracket with bidirectional light following in embodiment 2 of the present invention;

FIG. 7 is a schematic view of the installation structure of the inclination adjusting assembly and the photovoltaic assembly in embodiment 2 of the present invention;

FIG. 8 is a schematic view showing the structure of a tilt adjusting assembly according to embodiment 2 of the present invention;

FIG. 9 is a schematic view showing the structure of a bracket mechanism in embodiment 2 of the present invention;

fig. 10 is a partially enlarged schematic view of the structure at K in fig. 9.

Description of the specification reference numerals: 1. a support frame; 1-1, fixing a wire passing wheel; 2. a suspension cable; 2-1, tensioning a spring; 2-2, tensioning the rod; 2-3, a limiting piece; 2-4, mounting plates; 3. oblique pulling piles; 3-1, stay ropes; 4. a photovoltaic module; 4-1, fixing a bracket; 5. east-west tracking mechanism; 5-1, a movable bracket; 5-2, sliding grooves; 5-3, an angle adjusting component; 5-4, a transmission piece; 5-5, rotating shaft; 5-6, photovoltaic brackets; 6. a suspension cable lifting assembly; 6-1, a movable wire passing wheel; 6-2, lifting the seat board; 6-3, lifting the connecting rod; 6-4, a telescopic driving component; 7. a tensioning assembly; 7-1, a first pulley frame; 7-2, a second pulley frame; 7-3, tensioning the rope; 7-4, tensioning the weight component; 8. a solar tracker; 9. a tilt adjustment assembly; 9-1, fixing base; 9-2, sliding blocks; 9-3, a screw rod; 9-4, a guide rail; 9-5, inclination angle adjusting parts; 9-6, stay bars; z1, adjusting the axis in the north-south direction; z2, east-west adjustment axis.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.

Example 1

Referring to fig. 1 and 2, the invention discloses a photovoltaic power generation flexible adjusting bracket for bidirectional light tracking, which comprises a suspension cable 2, a north-south tracking mechanism, a east-west tracking mechanism 5 and a solar tracker 8.

The two suspension ropes 2 are arranged in parallel, and the two suspension ropes 2 are tensioned. The suspension cable 2 is sequentially provided with a plurality of photovoltaic modules 4 along the length direction of the suspension cable, and each photovoltaic module 4 is provided with a rotating shaft 5-5. Preferably, the photovoltaic module 4 is of a rectangular structure, and the rotating shaft 5-5 is arranged in the middle of the photovoltaic module 4. The axis of the rotating shaft 5-5 is an east-west adjusting axis Z2, and the east-west adjusting axes Z2 of each photovoltaic module 4 are mutually independent.

The north-south tracking mechanism is connected with the suspension cable 2 and is used for driving the photovoltaic module 4 to rotate around the north-south adjusting axis Z1 so as to adjust the north-south tracking angle of the photovoltaic module 4, so that the photovoltaic module 4 can adapt to the north-south movement of the sun in the seasonal change process. The north-south direction adjusting axis Z1 is perpendicular to the axis of the rotating shaft 5-5. The position of the specific north-south adjusting axis Z1 can be set according to the actual requirement, and preferably, the north-south adjusting axis Z1 is coaxially arranged with one of the suspension ropes 2.

The east-west tracking mechanism 5 is in transmission connection with the rotating shaft 5-5, and the east-west tracking mechanism 5 is used for driving the corresponding photovoltaic module 4 to rotate around the axis of the corresponding rotating shaft 5-5 so as to adjust the east-west tracking angle of the photovoltaic module 4, so that the photovoltaic module 4 can adapt to the illumination angle change of the solar east-west rise. One end of the rotating shaft 5-5 can be in transmission connection with the east-west tracking mechanism 5 or both ends of the rotating shaft can be in transmission connection with the east-west tracking mechanism 5 according to actual requirements. When the photovoltaic modules 4 rotate to a flat state around the axis of the rotating shaft 5-5, an avoidance gap is formed between every two adjacent photovoltaic modules 4, and the structure can ensure that all the photovoltaic modules 4 do not interfere with each other in the east-west tracking angle adjustment process of the photovoltaic modules 4, and the structure is simple and compact, and the light following adjustment is stable and reliable.

The solar tracker 8 is respectively in communication connection with the north-south tracking mechanism and the east-west tracking mechanism 5, and the solar tracker 8 is used for detecting and obtaining the sun position. According to the solar position detected by the solar tracker 8, the north-south tracking mechanism is controlled to adjust the north-south tracking angle of the corresponding photovoltaic module 4, and the east-west tracking mechanism 5 is controlled to adjust the east-west tracking angle of the corresponding photovoltaic module 4. By arranging the solar tracker 8, bidirectional light tracking of the photovoltaic module 4 is realized, and the optimal light incidence angle of the photovoltaic module 4 can be effectively ensured.

According to the photovoltaic power generation flexible adjusting bracket for the bidirectional light tracking, the bidirectional light tracking of the photovoltaic module 4 is realized on the flexible suspension cable 2 by arranging the suspension cable 2, the north-south tracking mechanism, the east-west tracking mechanism 5 and the solar tracker 8. The east-west tracking angle of each photovoltaic module 4 can be independently adjusted, so that the inclination angle of each photovoltaic module can be accurately adjusted even if the suspension cable 2 is in a non-tensioned sagging state, and the photoelectric conversion efficiency of photovoltaic power generation is improved. The east-west adjustment of the adjacent photovoltaic modules 4 is not interfered with each other, the angle adjustment can be stably carried out along with the east-west rising of the solar energy, the structure is simple and compact, and the light following adjustment is stable and reliable.

Referring to fig. 4 and 5, in the embodiment of the photovoltaic power generation flexible adjusting bracket for bidirectional light tracking according to the present invention, a north-south tracking mechanism is connected to one of the suspension ropes 2, and the north-south tracking mechanism includes a suspension rope lifting assembly 6 and a tensioning assembly 7.

The suspension cable lifting assemblies 6 are provided with two groups, and the two groups of suspension cable lifting assemblies 6 are respectively arranged at two ends of the suspension cable 2 in the length direction. Each group of suspension cable lifting assemblies 6 comprises a movable wire passing wheel 6-1, and the movable wire passing wheels 6-1 can lift; the specific lifting mode of the movable wire passing wheel 6-1 can be selected according to actual requirements. The movable wire passing wheel 6-1 is used for the corresponding suspension wire 2 to bypass. The suspension rope 2 between the two movable wire passing wheels 6-1 is parallel to the other suspension rope 2. The relative heights of the two suspension ropes 2 are changed by adjusting the height of the movable wire passing wheel 6-1 so as to adjust the north-south tracking angle of the photovoltaic module 4.

Specifically, the suspension cable 2 is generally disposed in an east-west direction, that is, the photovoltaic module 4 is laid on the suspension cable 2 in the east-west direction. Even if the suspension wires 2 have a certain sagging, the relative heights of the two suspension wires 2 can be changed at this time, so that the north-south inclination angles of the respective photovoltaic modules 4 can be ensured to be approximately the same. Therefore, the north-south inclination angle of the photovoltaic module 4 is adjusted based on the coordination of the suspension rope lifting module 6 and the tensioning module 7, the structure is simple, the weight required to be borne by the suspension rope 2 is small, the energy consumption required for adjustment is saved, and the service life of the flexible suspension rope 2 is prolonged.

The tensioning assembly 7 is arranged at the end of the suspension cable hoist assembly 6 remote from the other suspension cable hoist assembly 6, in connection with the suspension cable 2. It is conceivable that such ends have two places on the suspension cable 2. Only one set of tensioning assemblies 7 can be provided at one place or one set of tensioning assemblies 7 at two places according to actual requirements. Preferably, when the support frame 1 and the inclined pulling pile 3 are arranged, two groups of tensioning assemblies 7 are arranged, and the two groups of tensioning assemblies 7 are respectively arranged at the inclined pulling sections of the suspension ropes 2.

The tensioning assembly 7 includes a first pulley frame 7-1, a second pulley frame 7-2, a tensioning rope 7-3, and a tensioning weight member 7-4. Preferably, the first pulley frame 7-1 and the second pulley frame 7-2 are in rod-shaped structures, and a plurality of pulleys are arranged on the first pulley frame 7-1 and the second pulley frame 7-2. The specific number of pulleys can be adjusted according to the actual tensioning force. The first pulley frame 7-1 is connected with the end of the corresponding suspension cable 2, and the second pulley frame 7-2 is fixedly arranged. Preferably, the second pulley frame 7-2 is fixedly connected with the ground. One end of the tensioning rope 7-3 is connected with the first pulley yoke 7-1 or the second pulley yoke 7-2, and the other end of the tensioning rope 7-3 is wound on the pulley of the first pulley yoke 7-1 and the pulley of the second pulley yoke 7-2 in a reciprocating manner and is connected with the tensioning weight part 7-4. When the suspension cable lifting assembly 6 drives the corresponding suspension cable 2 to lift, the relative distance between the first pulley frame 7-1 and the second pulley frame 7-2 is passively adjusted to tension the suspension cable 2. Specifically, the pulley on the first pulley frame 7-1 is a movable pulley, and the pulley on the second pulley frame 7-2 is a fixed pulley, so that the first pulley frame 7-1 and the second pulley frame 7-2 are in tensioning connection through a plurality of sections of tensioning ropes 7-3. The tension on each section of tensioning rope 7-3 is equal to the weight G of the tensioning weight member 7-4, so the tension between the first pulley frame 7-1 and the second pulley frame 7-2 is n times the weight G, n being the number of sections of tensioning rope 7-3 between the first pulley frame 7-1 and the second pulley frame 7-2. The tensioning assembly 7 adopts the movable pulley block to realize tensioning of the suspension cable 2, and the tension of the tensioning counterweight part 7-4 can be multiplied through the movable pulley block, so that the supporting tension requirement of the photovoltaic assembly can be met. And the self-adaptive adjustment of the tension of the suspension cable 2 can be realized, and the condition that the suspension cable 2 sags due to the reduction of the tension is reduced. When the suspension cable lifting assembly 6 drives the corresponding suspension cable 2 to lift, the relative distance between the first pulley frame 7-1 and the second pulley frame 7-2 is passively adjusted, the tensioning force of the suspension cable 2 is ensured, meanwhile, the height change requirement is met, all the photovoltaic assemblies 4 on the suspension cable 2 can synchronously adjust the north-south inclination angle, the structure is simple, and the south-north adjustment is stable.

Further, referring to fig. 5, the photovoltaic power generation flexible adjusting bracket for bidirectional light following according to the present invention further includes a supporting frame 1 and a diagonal pile 3 in this embodiment. The support frame 1 is fixedly arranged, and preferably, the support frame 1 is fixedly connected with the ground. The support frame 1 is used for elevating the support suspension cable 2. The structure of the specific support frame 1 can be set according to actual requirements; preferably, a supporting frame 1 is respectively provided at both ends of the suspension cable 2 in the length direction to perform the elevating support. The suspension cable lifting assembly 6 includes a lifting saddle 6-2, a lifting link 6-3 and a telescoping drive member 6-4. The movable wire passing wheel 6-1 is connected with the lifting seat plate 6-2, and preferably, the movable wire passing wheel 6-1 can rotate relative to the lifting seat plate 6-2. The two lifting connecting rods 6-3 are arranged, the two lifting connecting rods 6-3 are rotationally connected with the supporting frame 1, and the two lifting connecting rods 6-3 are rotationally connected with the lifting seat plate 6-2 to form a parallel four-bar mechanism. The telescopic driving part 6-4 is rotationally connected with the support frame 1, the driving end of the telescopic driving part 6-4 is rotationally connected with one lifting connecting rod 6-3, and the driving end of the telescopic driving part 6-4 moves in a telescopic manner to drive the lifting seat plate 6-2 to lift. Preferably, the rotational connection is provided as a hinge; preferably, the telescopic driving means 6-4 is provided as an electric push rod or a hydraulic cylinder. Through setting up the suspension cable lifting assembly 6 of this structure, when carrying out the lift adjustment of suspension cable 2, lift bedplate 6-2, lift connecting rod 6-3 and support frame 1 form parallel four bar linkage and have improved structural stability, make the bearing capacity of suspension cable lifting assembly 6 stronger, can effectively bear the weight of photovoltaic module 4 and the tensioning pulling force of suspension cable 2, high regulation control is nimble convenient. The inclined pull piles 3 are fixedly arranged; preferably, the cable-stayed pile 3 is fixedly connected with the ground. The inclined pull piles 3 are respectively and fixedly connected with a second pulley frame 7-2 and a suspension cable 2 which is not connected with the north-south tracking mechanism.

The support frame 1 is also provided with two groups of fixed wire passing wheels 1-1, the two groups of fixed wire passing wheels 1-1 are respectively arranged opposite to the corresponding movable wire passing wheels 6-1, and the fixed wire passing wheels 1-1 can rotate relative to the support frame 1. The suspension cable 2 which is not connected with the north-south tracking mechanism winds through the corresponding fixed wire passing wheel 1-1 along the two ends of the length direction of the suspension cable and is fixedly connected with the cable-stayed pile 3, so that the tensioning stability of the suspension cable 2 is effectively ensured.

Further, referring to fig. 3, the photovoltaic power generation flexible adjusting bracket for bidirectional light following according to the present invention further includes a fixed bracket 4-1 and a movable bracket 5-1 in this embodiment. The fixing brackets 4-1 are provided in plural numbers and the same as the number of the photovoltaic modules 4. Each fixed support 4-1 is fixedly connected with the same suspension cable 2, and one axial end of the corresponding rotating shaft 5-5 is rotatably connected with the corresponding fixed support 4-1. The movable brackets 5-1 are provided with a plurality of the same number as the photovoltaic modules 4. Each movable support 5-1 is in sliding connection with the other suspension cable 2, and preferably, a sliding groove 5-2 is arranged on the movable support 5-1, and the suspension cable 2 passes through the sliding groove 5-2 to realize the sliding connection between the movable support 5-1 and the suspension cable 2; the other axial end of the corresponding rotating shaft 5-5 is rotationally connected with the corresponding movable bracket 5-1. The structure adapts to the change of the connecting position in the angle adjustment process of the photovoltaic module 4 through the relative sliding of the movable support 5-1, so that the angle adjustment of the photovoltaic module 4 is more stable.

The east-west tracking mechanism 5 comprises an angle adjusting part 5-3 and a transmission part 5-4, wherein the angle adjusting part 5-3 is connected with the fixed bracket 4-1 or connected with the movable bracket 5-1, and the driving end of the angle adjusting part 5-3 is in transmission connection with the corresponding rotating shaft 5-5 through the transmission part 5-4. Preferably, the angle adjusting part 5-3 is provided as an angle adjusting motor and the transmission member 5-4 is provided as a chain. The rotating shaft 5-5 is driven to rotate by the angle adjusting component 5-3, so that the photovoltaic module 4 can adjust the east-west tracking angle.

Further, in the present embodiment, only one solar tracker 8 is provided, and the solar tracker 8 is provided on the photovoltaic module 4 located at the middle position of the suspension cable 2. Specifically, when the number of the photovoltaic modules 4 is an odd number, the solar tracker 8 is directly arranged on the central photovoltaic module 4; when the number is even, one of the two photovoltaic modules 4 in the intermediate position is selected for installation. Each photovoltaic module 4 is controlled by a solar tracker 8 to control the north-south tracking mechanism and the east-west tracking mechanism 5 to adjust the north-south tracking angle and the east-west tracking angle of the corresponding photovoltaic module 4. The solar tracker 8 is arranged on the photovoltaic module 4, so that the solar tracker 8 can change direction along with the angle change of the photovoltaic module 4, and the tracking and monitoring of illumination are more accurate; only one solar tracker 8 is arranged, so that the cost is saved.

Or a plurality of solar trackers 8 are arranged, and the corresponding solar trackers 8 are connected with the corresponding photovoltaic modules 4. Each photovoltaic module 4 controls the north-south tracking mechanism and the east-west tracking mechanism 5 through the corresponding solar tracker 8 to adjust the north-south tracking angle and the east-west tracking angle. The solar tracker 8 is arranged on the photovoltaic module 4, so that the solar tracker 8 can change direction along with the angle change of the photovoltaic module 4, and the tracking and monitoring of illumination are more accurate. The east-west tracking angles of the photovoltaic modules 4 can be independently adjusted, and the problem of inaccurate adjustment of the east-west tracking angles caused by sagging of the suspension ropes 2 is solved.

Example 2

The invention discloses a photovoltaic power generation flexible adjusting bracket for bidirectional light following, which is different from the embodiment 1 in that:

Referring to fig. 6, 7 and 8, in the present embodiment, the north-south tracking mechanism includes the inclination adjustment assemblies 9, and the inclination adjustment assemblies 9 are provided in plurality and the same number as the photovoltaic assemblies 4, so that the north-south angles of the respective photovoltaic assemblies 4 can be independently controlled. Each tilt angle adjusting assembly 9 comprises a fixed seat 9-1, a photovoltaic bracket 5-6, a supporting rod 9-6, a sliding block 9-2, a screw rod 9-3, a guide rail 9-4 and a tilt angle adjusting component 9-5.

The fixing seats 9-1 are respectively and fixedly connected with two suspension ropes 2, one end of the photovoltaic support 5-6 is rotatably connected with the fixing seats 9-1, and the rotation axis of the photovoltaic support 5-6 and the north-south direction adjusting axis Z1 are coaxially arranged. The other end of the photovoltaic bracket 5-6 is rotationally connected with one end of a supporting rod 9-6, and the supporting rod 9-6 is rotationally connected with a sliding block 9-2. The sliding block 9-2 is in sliding connection with the guide rail 9-4, and the sliding block 9-2 is in threaded connection with the screw rod 9-3. The guide rail 9-4 is fixedly connected with the fixed seat 9-1, the screw rod 9-3 is rotationally connected with the fixed seat 9-1, and the screw rod 9-3 is axially parallel to the guide rail 9-4. The driving end of the inclination angle adjusting component 9-5 is in transmission connection with the screw rod 9-3, and the driving end of the inclination angle adjusting component 9-5 drives the screw rod 9-3 to rotate and drives the sliding block 9-2 to move along the guide rail 9-4 so as to adjust the north-south tracking angle of the photovoltaic module 4. Preferably, each rotational connection is provided as a hinge; the reclining part 9-5 is provided as a reclining motor.

Specifically, when the angle adjustment is required, the inclination angle adjusting component 9-5 drives the screw rod 9-3 to rotate, so that the sliding block 9-2 moves along the guide rail 9-4, and then the supporting rod 9-6 is utilized to drive the photovoltaic bracket 5-6 to rotate around the hinge shaft thereof, so that the included angle between the photovoltaic module 4 on the photovoltaic bracket 5-6 and the fixed seat 9-1 is changed. The fixing seat 9-1, the stay bar 9-6 and the photovoltaic bracket 5-6 form a triangular structure, so that the stability is good. Preferably, the screw rod 9-3 is of a ball type structure, and the angle adjustment is more stable and accurate.

The east-west tracking mechanism 5 comprises an angle adjusting component 5-3, the angle adjusting component 5-3 is connected with the photovoltaic bracket 5-6, and the driving end of the angle adjusting component 5-3 is in transmission connection with the corresponding rotating shaft 5-5. The rotating shaft 5-5 is driven to rotate by the angle adjusting component 5-3, so that the photovoltaic module 4 can adjust the east-west tracking angle.

Further, referring to fig. 9 and 10, the photovoltaic power generation flexible adjusting bracket for bidirectional light following according to the present invention further includes a bracket mechanism, a cable-stayed pile 3 and a cable-stayed 3-1 in this embodiment. The bracket mechanism comprises a support bracket 1 and an elastic tensioning assembly. The support frame 1 is fixedly arranged, and preferably, the support frame 1 is fixedly connected with the ground. The support frame 1 is used for lifting and supporting the suspension ropes 2, and at least one end of each suspension rope 2 is connected with the support frame 1 through an elastic tensioning assembly. The elastic tensioning assembly comprises a tensioning spring 2-1, a tensioning rod 2-2, a limiting piece 2-3 and a mounting plate 2-4. The mounting plate 2-4 is connected with the support frame 1, the tensioning rod 2-2 is movably connected with the mounting plate 2-4, preferably, a through hole is formed in the mounting plate 2-4, and the tensioning rod 2-2 is arranged in the through hole in a penetrating mode. One end of a tensioning rod 2-2 is connected with the end part of the suspension cable 2, the other end of the tensioning rod 2-2 is connected with a limiting piece 2-3, two ends of a tensioning spring 2-1 are respectively abutted against a mounting plate 2-4 and the limiting piece 2-3, and the tensioning spring 2-1 is in a compression state. Preferably, the limiting piece 2-3 is a nut, the tensioning rod 2-2 is provided with threads, and the two threads are connected so as to conveniently adjust the pretightening force of the tensioning spring 2-1, and ensure that the tensioning force of the suspension cable 2 is more stable. The inclined pulling pile 3 is fixedly arranged, and two ends of the inclined pulling rope 3-1 are respectively connected with the inclined pulling pile 3 and the supporting frame 1. The structure can effectively ensure the tension of the suspension cable 2, and can realize the self-adaptive adjustment of the tension of the suspension cable 2, and has simple structure and convenient installation.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present invention will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.

Claims

1. The utility model provides a photovoltaic power generation flexible regulation support of two-way follow spot which characterized in that includes:

The photovoltaic cable comprises two suspension cables (2), wherein the two suspension cables (2) are parallel to each other and are tensioned, the suspension cables (2) are sequentially provided with a plurality of photovoltaic modules (4) along the length direction of the suspension cables, and each photovoltaic module (4) is provided with a rotating shaft (5-5);

The north-south tracking mechanism is connected with the suspension cable (2) and is used for driving the photovoltaic module (4) to rotate around a north-south adjusting axis (Z1) so as to adjust a north-south tracking angle of the photovoltaic module (4); wherein the north-south direction adjusting axis (Z1) is perpendicular to the axis of the rotating shaft (5-5);

the east-west tracking mechanism (5) is in transmission connection with the rotating shaft (5-5), and the east-west tracking mechanism (5) is used for driving the corresponding photovoltaic modules (4) to rotate around the axes of the corresponding rotating shafts (5-5) so as to adjust east-west tracking angles of the photovoltaic modules (4); when the photovoltaic modules (4) rotate to a flat state around the axis of the rotating shaft (5-5), an avoidance gap is formed between every two adjacent photovoltaic modules (4);

The solar tracker (8), the solar tracker (8) is respectively connected with the north-south tracking mechanism and the east-west tracking mechanism (5) in a communication way, the solar tracker (8) is used for detecting and obtaining a solar position, and the north-south tracking mechanism is controlled to adjust the north-south tracking angle of the corresponding photovoltaic module (4) and the east-west tracking mechanism (5) is controlled to adjust the east-west tracking angle of the corresponding photovoltaic module (4) according to the solar position detected and obtained by the solar tracker (8);

The north-south tracking mechanism is connected with one of the suspension ropes (2) and comprises a suspension rope lifting assembly (6) and a tensioning assembly (7);

The two groups of the suspension rope lifting assemblies (6) are arranged at two ends of the suspension rope (2) in the length direction respectively; each group of suspension rope lifting assemblies (6) comprises a movable wire passing wheel (6-1), the movable wire passing wheels (6-1) can lift, the movable wire passing wheels (6-1) are used for the corresponding suspension ropes (2) to bypass, and the suspension ropes (2) between the two movable wire passing wheels (6-1) are parallel to one another; changing the relative heights of the two suspension ropes (2) by adjusting the height of the movable wire passing wheel (6-1) so as to adjust the north-south tracking angle of the photovoltaic module (4);

The tensioning assemblies (7) are provided with one group or two groups, and the tensioning assemblies (7) are arranged at the end part of the suspension cable lifting assembly (6) far away from the other suspension cable lifting assembly (6); the tensioning assembly (7) comprises a first pulley frame (7-1), a second pulley frame (7-2), a tensioning rope (7-3) and a tensioning weight component (7-4), wherein a plurality of pulleys are arranged on the first pulley frame (7-1) and the second pulley frame (7-2), the first pulley frame (7-1) is connected with the end part of the corresponding suspension rope (2), the second pulley frame (7-2) is fixedly arranged, one end of the tensioning rope (7-3) is connected with the first pulley frame (7-1) or connected with the second pulley frame (7-2), and the other end of the tensioning rope (7-3) is wound on the pulleys of the first pulley frame (7-1) and the pulleys of the second pulley frame (7-2) in a reciprocating mode and is connected with the tensioning weight component (7-4); when the suspension rope lifting assembly (6) drives the corresponding suspension rope (2) to lift, the relative distance between the first pulley frame (7-1) and the second pulley frame (7-2) is passively adjusted to tension the suspension rope (2).

2. The photovoltaic power generation flexible adjusting bracket for bidirectional light following according to claim 1 is characterized by further comprising a supporting frame (1) and a cable stayed pile (3);

the support frame (1) is fixedly arranged, and the support frame (1) is used for supporting the suspension cable (2) in a lifting manner;

The suspension cable lifting assembly (6) comprises lifting seat plates (6-2), lifting connecting rods (6-3) and telescopic driving components (6-4), wherein the movable wire passing wheel (6-1) is connected with the lifting seat plates (6-2), two lifting connecting rods (6-3) are rotatably connected with the supporting frame (1), the two lifting connecting rods (6-3) are rotatably connected with the lifting seat plates (6-2) to form a parallel four-bar mechanism, the telescopic driving components (6-4) are rotatably connected with the supporting frame (1), the driving end of each telescopic driving component (6-4) is rotatably connected with one lifting connecting rod (6-3), and the driving end of each telescopic driving component (6-4) is in telescopic motion so as to drive the lifting seat plates (6-2) to lift.

The cable-stayed pile (3) is fixedly arranged, and the cable-stayed pile (3) is respectively and fixedly connected with the second pulley frame (7-2) and the suspension cable (2) which is not connected with the north-south tracking mechanism.

3. The photovoltaic power generation flexible adjustment bracket for bidirectional light following according to claim 2, wherein:

Two groups of fixed wire passing wheels (1-1) are arranged on the support frame (1), and the two groups of fixed wire passing wheels (1-1) are respectively arranged opposite to the corresponding movable wire passing wheels (6-1); the suspension cable (2) which is not connected with the north-south tracking mechanism winds through the corresponding fixed wire passing wheel (1-1) along the two ends of the length direction of the suspension cable and is fixedly connected with the cable-stayed pile (3).

4. The bi-directional light following photovoltaic power generation flexible adjustment bracket of claim 1, further comprising:

The fixed brackets (4-1) are arranged, each fixed bracket (4-1) is fixedly connected with the same suspension cable (2), and one axial end of the corresponding rotating shaft (5-5) is rotationally connected with the corresponding fixed bracket (4-1);

The movable supports (5-1) are arranged in a plurality, each movable support (5-1) is connected with the other suspension cable (2) in a sliding mode, and the other axial end of the corresponding rotating shaft (5-5) is connected with the corresponding movable support (5-1) in a rotating mode.

5. The photovoltaic power generation flexible adjustment bracket for bidirectional light following according to claim 4, wherein:

The east-west tracking mechanism (5) comprises an angle adjusting component (5-3) and a transmission piece (5-4), wherein the angle adjusting component (5-3) is connected with the fixed support (4-1) or the movable support (5-1), and the driving end of the angle adjusting component (5-3) is in transmission connection with the corresponding rotating shaft (5-5) through the transmission piece (5-4).

6. The photovoltaic power generation flexible adjustment bracket for bi-directional light following according to any one of claims 1 to 5, wherein:

The solar energy tracker (8) is provided with only one, the solar energy tracker (8) is arranged on the photovoltaic modules (4) positioned in the middle of the suspension cable (2), and each photovoltaic module (4) is controlled by the solar energy tracker (8) to control the north-south tracking mechanism and the east-west tracking mechanism (5) so as to adjust the north-south tracking angle and the east-west tracking angle of the corresponding photovoltaic module (4); or alternatively

The solar energy tracker (8) is provided with a plurality of, the corresponding solar energy tracker (8) is connected with the corresponding photovoltaic modules (4), and each photovoltaic module (4) controls the north-south tracking mechanism and the east-west tracking mechanism (5) through the corresponding solar energy tracker (8) so as to adjust the north-south tracking angle and the east-west tracking angle.

7. The utility model provides a photovoltaic power generation flexible regulation support of two-way follow spot which characterized in that includes:

The north-south tracking mechanism comprises an inclination angle adjusting assembly (9), and a plurality of inclination angle adjusting assemblies (9) are arranged; each inclination angle adjusting component (9) comprises a fixed seat (9-1), a photovoltaic bracket (5-6), a supporting rod (9-6), a sliding block (9-2), a screw rod (9-3), a guide rail (9-4) and an inclination angle adjusting component (9-5);

the utility model discloses a photovoltaic power generation device, including fixing base (9-1), two suspension wires (2) are fixed connection respectively, the one end of photovoltaic support (5-6) with fixing base (9-1) rotates to be connected, just the axis of rotation of photovoltaic support (5-6) with north-south direction governing axis (Z1) coaxial arrangement, the other end of photovoltaic support (5-6) with one end of vaulting pole (9-6) rotates to be connected, vaulting pole (9-6) with slider (9-2) rotates to be connected, slider (9-2) with guide rail (9-4) sliding connection just slider (9-2) with lead screw (9-3) threaded connection, guide rail (9-4) with fixing base (9-1) fixed connection, lead screw (9-3) with fixing base (9-1) rotate to be connected, and lead screw (9-3) with guide rail (9-4) axial parallel, regulation part (9-5) with lead screw (9-3) drive end lead screw (9-3) drive slider (9-3) drive end (9-3) and drive part (9-3) move along the slider (9-3) and drive end that moves along the slider (9-4) To adjust the north-south tracking angle of the photovoltaic module (4).

8. The photovoltaic power generation flexible adjustment bracket for bidirectional light following according to claim 7, wherein:

The east-west tracking mechanism (5) comprises an angle adjusting component (5-3), the angle adjusting component (5-3) is connected with the photovoltaic bracket (5-6), and the driving end of the angle adjusting component (5-3) is in transmission connection with the corresponding rotating shaft (5-5).

9. The photovoltaic power generation flexible adjusting bracket for bidirectional light following according to claim 7, further comprising a bracket mechanism, a diagonal draw pile (3) and a diagonal draw cable (3-1);

The support mechanism comprises a support frame (1) and an elastic tensioning assembly, wherein the support frame (1) is fixedly arranged, the support frame (1) is used for supporting the suspension ropes (2) in a lifting mode, and at least one end of each suspension rope (2) is connected with the support frame (1) through the elastic tensioning assembly; the elastic tensioning assembly comprises a tensioning spring (2-1), a tensioning rod (2-2), a limiting piece (2-3) and a mounting plate (2-4), wherein the mounting plate (2-4) is connected with the supporting frame (1), the tensioning rod (2-2) can be movably connected with the mounting plate (2-4), one end of the tensioning rod (2-2) is connected with the end part of the suspension cable (2), the other end of the tensioning rod (2-2) is connected with the limiting piece (2-3), and two ends of the tensioning spring (2-1) are respectively abutted against the mounting plate (2-4) and the limiting piece (2-3) and the tensioning spring (2-1) is in a compressed state;

The cable-stayed pile (3) is fixedly arranged, and two ends of the cable-stayed pile (3-1) are respectively connected with the cable-stayed pile (3) and the support frame (1).

10. The photovoltaic power generation flexible adjustment bracket for bi-directional light following according to any one of claims 7 to 9, wherein: