CN116683850A - Photovoltaic flexible tracking system - Google Patents

Abstract

The invention relates to the technical field of photovoltaics, in particular to a photovoltaic flexible tracking system which comprises a plurality of photovoltaic brackets arranged in the north-south direction, a plurality of first stabilizing systems arranged in the east-west direction and a plurality of second stabilizing systems arranged in the east-west direction, wherein a plurality of first stabilizing systems are arranged between every two adjacent second stabilizing systems, and each photovoltaic bracket is rotationally connected with the plurality of first stabilizing systems and the plurality of second stabilizing systems; a first driving system is arranged among the plurality of first stabilizing systems and is connected with the plurality of photovoltaic brackets; and each second stabilizing system is provided with a second driving system which is connected with a plurality of photovoltaic brackets. According to the invention, the photovoltaic bracket is stabilized by the first stabilizing system and the second stabilizing system, so that the stability of the whole system under the action of wind is maintained, the first driving system and the second driving system independently drive the photovoltaic bracket to rotate and track, and when part or a small number of driving systems are failed or damaged, the whole structure is not damaged, and meanwhile, the tracking effect is maintained.

Description

Photovoltaic flexible tracking system

Technical Field

The invention relates to the technical field of photovoltaics, in particular to a photovoltaic flexible tracking system.

Background

Due to the development of new energy industries for years, the construction of new energy engineering such as photovoltaics is vigorous, the situation of lack of land is gradually caused in photovoltaic projects, the land conditions are good, the use of the land is less and less, in order to adapt to terrains, a flexible photovoltaic support capable of adapting to large spans is arranged, the span is 30-35 m generally, the length of one photovoltaic group string is about the length of more than 50m at the maximum, the span is suitable for terrains to span obstacles, the conventional flexible photovoltaic support is of a stable structure and resists wind load, a stable truss is arranged between adjacent columns to maintain stable structure, but the function of tracking solar radiation of a photovoltaic system cannot be realized due to the fact that the rigid rod pieces are adopted for connecting the front column and the rear column of the flexible support.

Disclosure of Invention

The invention aims to provide a photovoltaic flexible tracking system which can realize a large-span flexible photovoltaic bracket and a tracking function.

In order to achieve the above purpose, the technical scheme of the invention is that the photovoltaic flexible tracking system comprises a plurality of photovoltaic brackets arranged in the north-south direction, a plurality of first stabilizing systems arranged in the east-west direction and a plurality of second stabilizing systems arranged in the east-west direction, wherein a plurality of first stabilizing systems are arranged between adjacent second stabilizing systems, and each photovoltaic bracket is rotationally connected with the plurality of first stabilizing systems and the plurality of second stabilizing systems; a first driving system is arranged among the plurality of first stabilizing systems and is connected with the plurality of photovoltaic brackets; and each second stabilizing system is provided with a second driving system, and the second driving systems are connected with a plurality of photovoltaic brackets.

As one of the implementation manners, the photovoltaic bracket comprises a steel cable group, a plurality of tripods and a plurality of rotating arms, wherein the steel cable group is arranged along the east-west direction, the tripods are in one-to-one correspondence with the first driving systems, the rotating arms are in one-to-one correspondence with the second driving systems, the tripods and the rotating arms are connected with the steel cable group, the tripods are connected with the corresponding first driving systems, and the rotating arms are connected with the corresponding second driving systems.

As one embodiment, the steel cable group comprises two first steel cables and one second steel cable which are arranged in parallel, wherein the two first steel cables and the one second steel cable are respectively connected with two upper vertexes and one lower vertex of the tripod, and the intersection point of the tripod and the second steel cable is connected with the first driving system; the two first steel cables and the one second steel cable are respectively connected with the two ends and the middle of the rotating arm.

As one of the implementation manners, the first driving system comprises a first driving rope, both ends of the first driving rope are provided with first foundation columns, a first driving motor and swing arms connected with the first driving motor are arranged on the first foundation columns, both ends of the first driving rope are respectively connected with the swing arms on both sides of the first driving rope, and the first driving rope is connected with the tripod.

As one of the implementation manners, the first stabilizing system comprises a third steel cable and a supporting frame, the supporting frame is in a zigzag structure, supporting frame connecting rods are arranged at the position of the supporting frame, the crest of the supporting frame is in rotary connection with the corresponding supporting frame connecting rods, the trough of the supporting frame is connected with the third steel cable, and two ends of the third steel cable are anchored on the ground.

As one of the implementation modes, the second stabilizing system comprises a plurality of second foundation columns and main beams erected on the second foundation columns, wherein the main beams are provided with steel columns at the positions of the photovoltaic brackets, and the steel columns are rotationally connected with the middle parts of the corresponding rotating arms through bearings; the rotating arms at the north and south ends are thickened, and the bearings are plane bearings; and a damper is fixed on each steel column, and the driving end of the damper is connected with one end of the corresponding rotating arm.

As one of the implementation manners, the second driving system comprises a second driving motor and a second driving cable, pulleys are respectively arranged at two ends of the rotating arm, two ends of the main beam and the main beam between the rotating arms, one end of the second driving cable is connected with the second driving motor, and the other end of the second driving cable bypasses the pulleys and is connected with the second driving motor.

As one of the implementation modes, a third foundation column is arranged on the outer side of each second foundation column at the south and north ends, and the third foundation column is connected with the corresponding steel column through a fourth steel cable.

As one of the embodiments, a protector is provided on the drive cable at a position near the drive motor.

As one embodiment, the tracking system further comprises an anemometer.

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

(1) According to the invention, the photovoltaic support is stabilized by the first stabilizing system and the second stabilizing system, so that the photovoltaic system cannot generate wind-induced vibration to cause structural damage under the condition of strong wind, the stability of the tracking system is ensured, meanwhile, the first driving system and the second driving system respectively independently drive the photovoltaic support to rotate, the tracking function is realized, and when part or a small amount of driving systems are in fault or damage, the integral structure is not damaged, and the tracking effect is maintained;

(2) According to the invention, a plurality of first driving systems are adopted in the middle of the adjacent second driving systems, a foundation column is not required to be added in the middle, the large span of the flexible photovoltaic bracket is realized while tracking is carried out, and the problems of poor stability and large plane bearing clearance caused by long-term eccentric stress of the rotating arm due to the adoption of all the second driving systems can be avoided;

(3) When the driving system is totally damaged or fails, the damper can still maintain the system stable, dissipates energy under the action of wind, and avoids damage caused by resonance of the structure;

(4) According to the invention, the protector is arranged on the driving rope, the internal force of the inhaul cable is monitored in real time, and when the internal force exceeding the design range is monitored, the corresponding driving system is automatically converted into a passive state and is not actively pulled, so that structural damage caused by equipment failure or various accidents is avoided;

(5) All structures of the photovoltaic flexible tracking system are arranged below the photovoltaic module, so that the loss of generated energy caused by shielding the photovoltaic module is avoided, and the power generation efficiency is ensured.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a plan view of a photovoltaic flexible tracking system (with a photovoltaic module) provided by an embodiment of the present invention;

fig. 2 is a perspective view (with a photovoltaic module) of a photovoltaic flexible tracking system according to an embodiment of the present invention;

fig. 3 is a perspective view (no photovoltaic module) of a photovoltaic flexible tracking system provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of a portion of a photovoltaic flexible tracking system provided by an embodiment of the present invention;

fig. 5 is a schematic diagram of a first driving system driving a flexible support to rotate according to an embodiment of the present invention, wherein (a) is when the inclination angle is 0 degrees, (b) is when the tracking is towards the west, and (c) is when the tracking is towards the east;

FIG. 6 is a partial schematic view of FIG. 5;

fig. 7 is a schematic diagram of a second driving system in the middle driving a flexible support to rotate, where (a) is when the inclination angle is 0 degrees, and (b) is when tracking to the west;

FIG. 8 is a schematic diagram of a second driving system for driving a flexible support to rotate according to an embodiment of the present invention, wherein (a) is when the inclination angle is 0 degrees, and (b) is when tracking to the west;

FIG. 9 is a partial schematic view of FIG. 8;

FIG. 10 is an enlarged schematic view of the end of the swivel arm;

FIG. 11 is a schematic top view of the end of the swivel arm;

FIG. 12 is an enlarged schematic view of the middle rotating arm;

FIG. 13 is a schematic side view of the middle rotating arm;

in the figure: 1. a photovoltaic support; 11. a first wire rope; 12. a second wire rope; 13. a tripod; 14. a rotating arm; 15. a support frame connecting rod; 2. a first drive system; 21. a first driving motor; 22. a first drive cable; 23. swing arms; 24. a first foundation column; 3. a first stabilization system; 31. a third wire rope; 32. a support frame; 33. a fifth wire rope; 4. a second drive system; 41. a second driving motor; 42. a second drive cable; 43. a pulley; 5. a second stabilization system; 51. a second foundation column; 52. a main beam; 53. a steel column; 54. a planar bearing; 55. a damper; 56. a third foundation column; 57. a fourth wire rope; 58. a bearing; 6. a protector; 7. an anemometer; 8. a photovoltaic module; 9. an anchor.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second" may include one or more such features, either explicitly or implicitly; in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" means two or more, and the meaning of "a number" means at least one.

Example 1

As shown in fig. 1 to 3, the present embodiment provides a photovoltaic flexible tracking system, which includes a plurality of photovoltaic brackets 1 arranged in the north-south direction, a plurality of first stabilizing systems 3 arranged in the east-west direction, and a plurality of second stabilizing systems 5 arranged in the east-west direction, wherein a plurality of first stabilizing systems 3 are arranged between adjacent second stabilizing systems 5, and each photovoltaic bracket 1 is rotatably connected with the plurality of first stabilizing systems 3 and the plurality of second stabilizing systems 5; a first driving system 2 is arranged among the plurality of first stabilizing systems 3, and the first driving system 2 is connected with the plurality of photovoltaic brackets 1; a second driving system 4 is arranged on each second stabilizing system 5, and the second driving systems 4 are connected with a plurality of photovoltaic brackets 1. In this embodiment, the photovoltaic bracket 1 is used for supporting and fixing the photovoltaic module 8, and the photovoltaic bracket 1 is stabilized by the first stabilizing system 3 and the second stabilizing system 5, so that the photovoltaic module 8 does not vibrate under the windy condition, the first driving system 2 and the second driving system 4 respectively and independently drive the photovoltaic bracket 1 to rotate, thereby realizing the tracking function, and avoiding the damage of the integral structure and simultaneously keeping the tracking effect when part or a small number of driving systems are in failure.

Specifically, the photovoltaic bracket 1 includes a steel cable group arranged along the east-west direction, a plurality of tripods 13 corresponding to the first driving systems 2 one by one, and a plurality of rotating arms 14 corresponding to the second driving systems 4 one by one, wherein the tripods 13 and the rotating arms 14 are connected with the steel cable group, the tripods 13 are connected with the corresponding first driving systems 2, and the rotating arms 14 are connected with the corresponding second driving systems 4.

4-6, the cable assembly comprises two first cables 11 and one second cable 12 which are horizontally arranged in parallel, wherein the two first cables 11 and the one second cable 12 are respectively connected with two upper vertexes and one lower vertex of each tripod 13, and the intersection point of each tripod 13 and the second cable 12 is connected with the first driving system 2; two first steel cables 11 and one second steel cable 12 are respectively connected to both ends and the middle of each rotating arm 14. In this embodiment, the second steel cable 12 is arranged in a wave shape, and is located at the crest of the rotary arm 14 and is located at the trough of the tripod 13, and a rotatable photovoltaic bracket 1 capable of fixing the photovoltaic module 8 can be formed by the two first steel cables 11 and the second steel cable 12 and the tripod 13 and the rotary arm 14.

As an embodiment, as shown in fig. 4, the tripod 13 includes a first tripod 13 and a second tripod 13 having a common lower vertex, two upper vertices of the first tripod 13 and the second tripod 13 are connected to the two first wires 11, respectively, and the common lower vertex of the first tripod 13 and the second tripod 13 is connected to the second wires 12. With the inverted cone-shaped tripod 13 of the present embodiment, under the constraint of the first driving cable 22, the tripod 13 has the function of limiting the heave oscillation of the first steel cable 11, and can limit the heave oscillation of the entire array of photovoltaic modules under uneven loads such as wind.

Optimizing the above embodiment, the first driving system 2 includes a first driving cable 22, two ends of the first driving cable 22 are provided with a first foundation column 24, a first driving motor 21 and a swing arm 23 connected with the first driving motor 21 are provided on the first foundation column 24, two ends of the first driving cable 22 are respectively connected with the swing arms 23 on two sides of the first driving cable 22, and the first driving cable 22 is connected with the tripod 13. As shown in fig. 4 to 6, in this embodiment, one end of the swing arm 23 is connected to the output end of the corresponding first driving motor 21, and the other end is connected to one end of the first driving cable 22, and the swing arm 23 is driven to swing by the first driving motor 21, so as to drive the first driving cable 22 to move in the east or west, so that the photovoltaic module 8 on the photovoltaic bracket 1 rotates in the east or tilts in the west.

Specifically, the first stabilizing system comprises a third steel cable 31 and a supporting frame 32, the third steel cable 31 and the supporting frame 32 are all arranged along the east-west direction, the supporting frame 32 is of a zigzag structure, each photovoltaic support 1 is provided with a supporting frame connecting rod 15 at the position of the supporting frame 32, two ends of the supporting frame connecting rod 15 are respectively connected with two first steel cables 11, the crest of the supporting frame 32 is rotationally connected with the middle part of the supporting frame connecting rod 15 at the corresponding position, the trough of the supporting frame 32 is connected with the third steel cable 31, and two ends of the third steel cable 31 are anchored on the ground. As shown in fig. 4 to 6, in this embodiment, the support frame 32 and the third cable 31 maintain stability in the east-west direction of each row of photovoltaic modules 8, and the tripod 13, the first cable 11 and the second cable 12 maintain stability of each row of photovoltaic modules 8, and the support frame connecting rod 15 connects the first cable 11 and the support frame 32, so that the first stabilizing system and the photovoltaic support 1 are integrally formed and stressed together.

Optimally, the joint of the two ends of the third steel cable 31 and the supporting frame 32 is also connected with at least one fifth steel cable 33, the fifth steel cable 33 and the adjacent third steel cable 31 are anchored at the same position on the ground, the fifth steel cable 33 forms an X shape between the adjacent third steel cables 31, and the stability of the third steel cable 31 out of the plane is improved. The number of fifth ropes 33 may be set as needed.

Specifically, the second stabilizing system includes a plurality of second foundation columns 51 and main beams 52 that are erected on the plurality of second foundation columns 51, the second foundation columns 51 are fixedly provided with steel columns 53 at the positions of the photovoltaic brackets 1, the steel columns 53 are rotatably connected with the corresponding middle parts of the rotating arms 14 through bearings 58, and the second driving system 4 can drive the rotating arms 14 to rotate around the steel columns 53. As shown in fig. 7 to 9, in this embodiment, the photovoltaic modules 8 of each row are well fixed and rotatable about the rotation axis by the first wire rope 11, the second wire rope 12, the rotation arm 14 at the end, the rotation arm 14 at the middle, the second foundation column 51 at the end, and the second foundation column 51 at the middle. The second foundation columns 51 are in one-to-one correspondence with the photovoltaic brackets 1, and the main beams 52 may be continuous or may be arranged on the corresponding second foundation columns 51 in a plurality of sections.

In the above embodiment, the damper 55 is fixed on each steel column 53, and the driving end of the damper 55 is connected to one end of the corresponding rotating arm 14. The driving end of the damper 55 can be passively lengthened or shortened, and when the first driving system 2 and the second driving system 4 are damaged or fail, the damper 55 can maintain the stability of the rotating arm 14, so that wind-induced vibration is not generated in each row of photovoltaic modules 8, and the photovoltaic modules only slowly rotate under the action of wind and the like but cannot cause structural damage.

As shown in fig. 7 to 13, since the swivel arms 14 at both the north and south ends need to be connected and anchored to two first wires 11, one second wire 12, and are subjected to a great horizontal tensile force, the swivel arms 14 and the steel columns 53 at both the north and south ends are reinforced, particularly, increased in size, such as increased in the lateral sides with a plurality of stiffening ribs, with respect to the swivel arms 14 and the steel columns 53 in the middle. The rotating arms 14 at the north and south ends are rotatably connected with the corresponding steel columns 53 through the plane bearings 54, and the plane bearings 54 can bear larger force, so that the bearing capacity requirement is met, and meanwhile, rotation tracking is realized. Further preferably, the plane bearing 54 includes a plane bearing and a normal bearing, the plane bearing 54 is installed in an installation groove on the rotating arm 14, the normal bearing is disposed in an inner ring of the plane bearing, and an outer ring of the normal bearing is connected with the inner ring of the plane bearing, so as to improve the stress intensity of the bearing; and a cushion block can be additionally arranged on one side of the common bearing, which is close to the rotating arm 14, so that the stress is more reasonable.

Further, the steel column 53 in the middle part comprises a rectangular pipe, an end plate and a fixed plate, the lower end of the rectangular pipe is fixed on the second foundation column 51, the end plate is fixed at the upper end of the rectangular pipe, the fixed plate is vertically welded on the end plate, and the side surface of the fixed plate is fixed with the end plate through a stiffening rib; the fixing plate is provided with holes for the second steel cables 12 to pass through, as shown in fig. 12 and 13, the first steel cables 11 pass through the holes at the two ends of the rotating arm 14 and keep the whole length straight, the second steel cables pass through the holes at the top of the steel column 53 to form wave shapes, the first steel cables 11 and the second steel cables 12 basically do not cause horizontal force to the middle steel column 53, and the middle steel column 53 and the middle rotating arm 14 do not need to be additionally reinforced.

In refinement of the foregoing embodiment, the second driving system 4 includes a second driving motor 41 and a second driving cable 42, two ends of the rotating arm 14, two ends of the main beam 52 and the main beam 52 located between the rotating arms 14 are all provided with pulleys 43, one end of the first driving cable 22 is connected with the first driving motor 21, the other end of the first driving cable 22 bypasses the pulleys 43 and is connected with the first driving motor 21, the first driving system 2 includes a first driving motor 21, a first driving cable 22 and a swinging arm 23, the swinging arm rotates under the driving of the first driving motor 21, and the swinging arm rotating shaft and each photovoltaic bracket rotating shaft are located in the same plane. In the embodiment, the second driving motor 41 drives the second driving cable 42 to drive the rotating arm 14 to rotate, and meanwhile, the first driving motor 21 rotates the swinging arm 23 to drive the first driving cable 22 to pull the tripod 13 to rotate, so that the rotation of the photovoltaic bracket 1 is realized; the second driving motor 41 is arranged on a single side only, the synchronization effect is good, the second driving motor 41, the pulley 43, the rotating arm 14 and the second driving cable 42 are all arranged in the running plane of the second driving cable 42, no eccentricity exists, the second driving cable 42 can directly act on the rotating arm 14, the stress is even, uneven stress of the plane bearing 54 caused by the fact that the second driving cable 42 and the rotating arm 14 are not arranged in the same plane is avoided, and the reliability of the structure is improved.

As shown in fig. 4, a third foundation column 56 is disposed outside each of the second foundation columns 51 at the north and south ends, and the third foundation column 56 is connected and anchored to the corresponding steel columns 53 at the north and south ends through a fourth steel cable 57, so as to balance the horizontal forces of the steel columns 53 at the north and south ends and the second foundation columns 51 at the north and south ends, and improve the stability of the second stabilizing system.

As shown in fig. 6 and 9, the protector 6 is provided on the first drive cable 22 at a position close to the first drive motor 21, and the protector 6 is provided on the second drive cable 42 at a position close to the second drive motor 41. The protector 6 adopts the foil gauge, can real-time supervision cable internal force, when first driving motor 21 and/or second driving motor 41 break down, uncoordinated or unexpected circumstances such as wind speed is too big cause the force on first driving cable 22 and/or the second driving cable 42 to surpass the design scope, corresponding foil gauge monitors external force too big and transmits signal to control system, control system control first driving motor 21 and/or second driving motor 41 gets into passive state, form the protection, avoid driving asynchronous, the structural damage that unexpected circumstances etc. caused.

Optimally, the photovoltaic flexible tracking system of this embodiment further includes an anemometer 7, as shown in fig. 4, the instantaneous wind speed can be monitored by the anemometer 7, and if the wind speed is too large, the first driving motor 21 and the second driving motor 41 are controlled to enter a protection state, the photovoltaic module 8 is rotated to a protection angle with an inclination angle of about 3-5 °, and the load of the wind is reduced. The wind speed instrument 7, the first driving motor 21, the second driving motor 41, and the protector 6 are all electrically connected with the control system in this embodiment.

The driving system of the embodiment is provided with multiple protection mechanisms, protection can be formed under the condition that the design range is out of range, the structure of the rope is restrained and controlled in the east-west direction and the north-south direction, the overall stability is good, the rope force of all ropes is small, and the possibility of being damaged is low. The plurality of first driving systems 2 are adopted in the middle of the adjacent second driving systems 4, foundation columns are not needed to be added in the middle, the large span of the flexible photovoltaic bracket 1 is realized while tracking is performed, the problem that the stability is poor and the clearance between the plane bearing 54 is enlarged due to long-term eccentric stress of the rotating arm 14 caused by all the second driving systems 4 can be avoided, and meanwhile, the tracking effect is not influenced when any one set of driving systems or a small number of driving systems are in fault or damaged.

Example two

As shown in fig. 1 and 2, the present embodiment provides a large-span flexible photovoltaic system, which includes a photovoltaic module 8 and the photovoltaic flexible tracking system provided in the first embodiment, and each photovoltaic support is provided with the photovoltaic modules 8 sequentially arranged in the north-south direction.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (10)

1. A photovoltaic flexible tracking system, characterized by: the photovoltaic system comprises a plurality of photovoltaic brackets arranged in the north-south direction, a plurality of first stabilizing systems arranged in the east-west direction and a plurality of second stabilizing systems arranged in the east-west direction, wherein a plurality of first stabilizing systems are arranged between adjacent second stabilizing systems, and each photovoltaic bracket is rotationally connected with the plurality of first stabilizing systems and the plurality of second stabilizing systems; a first driving system is arranged among the plurality of first stabilizing systems and is connected with the plurality of photovoltaic brackets; and each second stabilizing system is provided with a second driving system, and the second driving systems are connected with a plurality of photovoltaic brackets.

2. The photovoltaic flexible tracking system of claim 1, wherein: the photovoltaic support comprises a steel cable group, a plurality of tripods and a plurality of rotating arms, wherein the steel cable group is arranged along the east-west direction, the tripods are in one-to-one correspondence with the first driving systems, the rotating arms are in one-to-one correspondence with the second driving systems, the tripods and the rotating arms are connected with the steel cable group, the tripods are connected with the corresponding first driving systems, and the rotating arms are connected with the corresponding second driving systems.

3. The photovoltaic flexible tracking system of claim 2, wherein: the steel cable group comprises two first steel cables and one second steel cable which are arranged in parallel, the two first steel cables and the one second steel cable are respectively connected with two upper vertexes and one lower vertex of the tripod, and the intersection point of the tripod and the second steel cable is connected with the first driving system; the two first steel cables and the one second steel cable are respectively connected with the two ends and the middle of the rotating arm.

4. The photovoltaic flexible tracking system of claim 2, wherein: the first driving system comprises a first driving rope, first foundation columns are arranged at two ends of the first driving rope, a first driving motor and swing arms connected with the first driving motor are arranged on the first foundation columns, two ends of the first driving rope are respectively connected with the swing arms at two sides of the first driving rope, and the first driving rope is connected with the tripod.

5. The photovoltaic flexible tracking system of claim 2, wherein: the first stabilizing system comprises a third steel cable and supporting frames, the supporting frames are of zigzag structures, supporting frame connecting rods are arranged at the position of each photovoltaic support frame, the crest of each supporting frame is connected with the corresponding supporting frame connecting rod in a rotating mode, the trough of each supporting frame is connected with the third steel cable, and two ends of each third steel cable are anchored on the ground.

6. The photovoltaic flexible tracking system of claim 2, wherein: the second stabilizing system comprises a plurality of second foundation columns and main beams erected on the second foundation columns, steel columns are arranged on the main beams at the positions of the photovoltaic brackets, and the steel columns are in rotary connection with the middle parts of the corresponding rotating arms through bearings; the rotating arms at the north and south ends are thickened, and the bearings are plane bearings; and a damper is fixed on each steel column, and the driving end of the damper is connected with one end of the corresponding rotating arm.

7. The photovoltaic flexible tracking system of claim 6, wherein: the second driving system comprises a second driving motor and a second driving rope, pulleys are arranged at two ends of the rotating arm, two ends of the main beam and the main beam between the rotating arms, one end of the second driving rope is connected with the second driving motor, and the other end of the second driving rope bypasses the pulleys and is connected with the second driving motor.

8. The photovoltaic flexible tracking system of claim 7, wherein: and a third foundation column is arranged on the outer side of each second foundation column at the north and south ends, and the third foundation columns are connected with the corresponding steel columns through fourth steel cables.

9. The photovoltaic flexible tracking system of claim 4 or 7, wherein: and a protector is arranged at the position, close to the driving motor, of the driving cable.

10. The photovoltaic flexible tracking system of claim 1, wherein: the tracking system also includes an anemometer.