CN106647822A - Photovoltaic power generation hanging type sun-tracking support system - Google Patents

Abstract

A hanging solar tracking support system for photovoltaic power generation, comprising a supporting column of a driving device, a supporting column of a suspension frame, an output shaft of an electric actuator set on the supporting column of the driving device is fixedly connected to a driving boom, and a suspension set on the supporting column of the suspension frame. A driven boom is hinged on the frame through a hinge shaft. The hinge shaft and the output shaft are located on the same rotation center line. The free end of the driving boom is fixedly connected to the photovoltaic panel support beam, and the extension end of the photovoltaic panel support beam is connected to the driven boom. The free ends of the photovoltaic panels are connected and fixed. The supporting beam of the photovoltaic panel is parallel to the center line of rotation and deviates from the center line of rotation. Rotation centerline. It can not only reduce the additional harmful torque of the solar tracking support system of the photovoltaic panel, reduce the driving power, but also improve the safety and stability of the solar tracking support system of the photovoltaic panel.

Description

Photovoltaic power generation hanging sun tracking support system

technical field

The invention relates to a photovoltaic power generation device, in particular to a photovoltaic power generation hanging type solar tracking support system.

Background technique

The current single-axis solar tracking photovoltaic power generation is divided into two types: flat single axis and oblique single axis. Usually, the photovoltaic panel is fixed on the rotating single axis, and the rotation of the rotating single axis drives the photovoltaic panel under the control of the motor. Realize the movement of photovoltaic panels to track sunlight and collect sunlight during the day. Since the center of rotation of the system composed of the existing photovoltaic cell panels, the single axis of rotation and the support frame is at the axis of the single axis of rotation, the center of gravity of the photovoltaic cell panel deviates from the center of rotation of the single axis of rotation. Gravity, as well as the effect of wind or rain and snow load, because the center of gravity of the photovoltaic panel deviates from the center of rotation of the single axis of rotation, a large harmful additional torque will be generated, which increases the load of the drive device and leads to an increase in drive power. Large, increasing the waste of electric energy, and the driving device is also easy to accelerate damage; and sometimes a large overturning moment will be generated on the support frame system, causing the support frame to fall, affecting the safety of the system. Moreover, since the center of gravity of the photovoltaic cell panels in the prior art deviates from the rotation center of the single axis of rotation, the harmful additional torque is relatively large. Within 120 degrees, the maximum does not exceed 120 degrees, which in turn causes the photovoltaic panels to delay the initial tracking time at sunrise and advance the termination time of sunset tracking, resulting in shortening the time for photovoltaic panels to collect sunlight.

Contents of the invention

The purpose of the present invention is to address the deficiencies in the prior art and provide a photovoltaic power generation hanging solar tracking support system, which can not only reduce the additional harmful torque of the photovoltaic panel solar tracking support system, reduce the driving power, but also improve Photovoltaic panel solar tracking support system is safe and stable.

The purpose of the present invention is achieved like this:

A hanging solar tracking support system for photovoltaic power generation, comprising a photovoltaic cell panel and a support column, the support column includes a drive device support column, a suspension frame support column, an electric actuator is arranged on the drive device support column, and the electric actuator The output rotating shaft of the actuator is fixedly connected to the driving boom, the lower end of the driving boom is a free end, the suspension frame is provided on the support column, and a driven boom is hinged on the suspension frame, and the driven crane The upper end of the arm is a fixed end, which is hinged to the suspension frame through a hinge shaft, the hinge shaft and the output shaft are located on the same rotation centerline, the lower end of the driven boom is a free end, and the free end of the driving boom is fixedly connected to the photovoltaic system. The battery panel supports the crossbeam, the extension end of the photovoltaic panel support beam is connected and fixed with the free end of the driven boom, the photovoltaic panel support beam is parallel to the rotation centerline and deviates from the rotation centerline, and the photovoltaic panel is installed and fixed on The solar tracking motion component is formed on the supporting beam of the photovoltaic panel, and the center of gravity of the solar tracking motion component is located at or close to the center line of gyration.

The output rotating shaft is fixedly connected to the output flange in the circumferential direction, and is connected to the flange of the driving boom through the output flange.

The suspension frame is an arch structure, and the suspension frame of the arch structure is located at the top of the inner space and is provided with a hinge seat extending downward. There is a space for giving way to allow the free end of the driven boom to rotate 80 degrees to the left and to the right in the inner space.

The photovoltaic cell panel is fixed on the upper end of the photovoltaic cell panel support beam through hoops.

The hoop adopts U-shaped bolts.

There is one supporting column of the driving device, multiple supporting columns of the suspension frame are arranged side by side, and one end of the supporting beam of the photovoltaic panel is supported by a driving boom fixedly connected to the output shaft of the electric actuator on the supporting column of the driving device. The extended end of the battery panel support beam is supported by a plurality of side-by-side suspension frame support columns on the suspension frame hinged driven boom suspension to form a multi-point support, and the photovoltaic panel support beam between the drive device support column and the suspension frame support column , and a plurality of photovoltaic cell panels are fixedly installed on the photovoltaic cell panel support beam between two adjacent suspension frame support columns.

The driving device supporting column is one, and the driving device supporting column is located in the middle of a plurality of suspension frame supporting columns arranged side by side. The left and right ends of the output shaft of the electric actuator on the driving device supporting column are respectively fixedly connected with driving booms. Each of the driving booms is hung and fixedly connected to a photovoltaic panel support beam, and the extension ends of the left and right photovoltaic panel support beams are respectively hinged by a plurality of suspension supports arranged side by side on the left and right sides of the support column of the driving device. The driven boom hangs to form a multi-point support.

The maximum rotation angle of the free end of the driving boom is 160 degrees.

The photovoltaic panel supporting beam adopts a tubular structure.

With the above scheme, an electric actuator is set on the supporting column of the driving device, the output shaft of the electric actuator is fixedly connected to the driving boom, and the lower end of the driving boom is a free end. A suspension frame is set on the support column of the suspension frame, and a driven boom is hinged on the suspension frame, and the upper end of the driven boom is hinged with the suspension frame through a hinge shaft. The lower end of the arm is a free end. The free end of the driving boom is fixedly connected to the supporting beam of the photovoltaic cell panel, the extension end of the supporting beam of the photovoltaic cell panel is connected and fixed to the free end of the driven boom, and the supporting beam of the photovoltaic cell panel is parallel to the center line of rotation and deviates from the center of rotation Wire. This structure enables the electric actuator to drive the driving boom to rotate back and forth with the output shaft as the center of rotation, and drives the photovoltaic panel supporting beam that is suspended together with the driven boom to move back and forth around the center line of rotation without being supported by photovoltaic panels. The beam serves as the center of rotation, and the photovoltaic cell panel support beam deviates from the rotation center, and the photovoltaic cell panel is installed and fixed on the photovoltaic cell panel support beam to form a sun-tracking motion assembly. When the sun-seeking motion component is driven by the electric actuator to perform the sun-tracking motion, the center line of the revolution can be infinitely close to the center of gravity of the solar-tracking motion component, so that the torque that needs to overcome the gravity of the sun-seeking motion component is reduced, and additional harmful rotation is avoided. Influence of moments on the hanging solar tracking support system. Compared with the prior art, the same driving power can drive more photovoltaic panels with higher power, and the input-output ratio is improved. This structure can not only reduce the driving power consumption, but also avoid accidents that cause the center of gravity of the sun-tracking motion components to deviate too much from the center of slewing, resulting in the toppling of the support column, which greatly improves the safety and stability of the photovoltaic power generation sun-tracking support system.

A suspension frame is set on the upper end of the support column of the suspension frame, and the suspension frame is designed as an arch structure. The axle hole that is provided with on the seat is hinged, and the inner space of suspension frame leaves the room that allows the free end of driven boom to turn 80 degrees to the left and right respectively. This structure not only prevents the center of gravity of the driven boom from deviating from the suspension frame, but also enables the driven boom to rotate with the suspended photovoltaic panel support beam with the hinge axis as the center of rotation, and it rotates 80 degrees to the left and right. The 10-degree space is enough to ensure the maximum rotation angle of the sun-chasing movement components. Compared with the existing technology, the time for photovoltaic panels to receive light at sunrise can be advanced, and the time for photovoltaic panels to receive light at sunset The time can be delayed, so that the time of collecting sunlight in a day can be lengthened.

In particular, the photovoltaic power generation hanging solar tracking support system is composed of the driving device supporting column, the suspension frame supporting column, the driving boom, the driven boom, the photovoltaic panel supporting beam, the photovoltaic panel, the electric actuator, etc. , the support point of the sun-tracking movement assembly composed of photovoltaic panels and photovoltaic panel support beams—that is, the output shaft of the electric actuator that supports the rotation of the boom and the hinge shaft that supports the driven boom is designed to be higher than the photovoltaic panel. Above the battery board support beam, the sun-tracking motion component takes the supporting point as the center of rotation, and the rotation center line of the support point can be infinitely close to the center of gravity of the solar-tracking motion component, so that the gravity of the solar-tracking motion component and the load of wind, snow and rain relative to the output shaft and The additional harmful torque generated by the hinge shaft is minimized, thereby reducing the drive energy consumption per unit power generation capacity of the entire system, facilitating the cascade drive of more sun-tracking motion components, and the number of photovoltaic panels that can be driven by one electric actuator More and larger power capacity, thereby reducing the cost of the system and the area occupied by unit power generation capacity. And because the driving boom and the driven boom bear simple tension but not torque, the system has good stability, and the moment that causes the system to overturn is reduced or eliminated, which improves the stability of the system and enhances the system's resistance to wind disasters, rain and snow disaster capacity.

The present invention will be further described below in conjunction with drawings and embodiments.

Description of drawings

Fig. 1 is a schematic structural view of a preferred embodiment of the present invention;

Fig. 2 is a schematic side view of the present invention;

Fig. 3 is a schematic diagram of the electric actuator of the present invention;

Fig. 4 is a suspension frame structural diagram of the present invention;

Fig. 5 is a schematic diagram of the sun tracking state of the present invention.

detailed description

Referring to FIG. 1 to FIG. 5 , an embodiment of a hanging solar tracking support system for photovoltaic power generation, the photovoltaic panel solar tracking support system for photovoltaic power generation includes a photovoltaic cell panel 2 , a driving device supporting column 6 , and a suspension frame supporting column 7 . An electric actuator 5 is arranged on the support column 6 of the driving device, and the output shaft 12 of the electric actuator 5 is fixedly connected to the driving boom 4, and the lower end of the driving boom 4 is a free end. The electric actuator 5 is fixed on the upper end of the supporting column 6 of the driving device by bolts. The electric actuator 5 includes a reduction motor 10 and a worm gear reducer 11. The worm gear reducer 11 is fixed to the supporting column 6 of the driving device through the installation base 17. connected, the worm gear of the worm gear reducer 11 is connected to the shaft of the geared motor 10, the worm of the worm gear reducer 11 is connected to the drive boom 4 for the output shaft 12, and the output shaft 12 and the drive boom 4 can be Circumferentially fixedly connected by splines, or by a single key; or the output shaft 12 is circumferentially fixedly connected to the output flange 13 , and is flanged to the driving boom 4 through the output flange 13 . A suspension frame 1 is arranged on the support column 7 of the suspension frame, and the suspension frame 1 is fixed on the upper end of the support column 7 of the suspension frame by bolts, and a driven boom 8 is hinged on the suspension frame 1, and the upper end of the driven boom 8 is The fixed end is hinged to the suspension frame 1 through the hinge shaft 15, the hinge shaft 15 and the output shaft 12 are located on the same rotation centerline 9, and the lower end of the driven boom 8 is a free end. The suspension frame 1 of this embodiment is an arched structure, and the suspension frame 1 of the arched structure is located at the top of the inner space and is provided with a hinge seat 1a extending downward. The shaft hole 1b provided on 1a is hinged, and the inner space of the suspension frame 1 leaves a space 1c for the free end of the driven boom 8 to rotate 80 degrees to the left and right, so that the maximum rotation of the free end of the driving boom 4 The angle is 160 degrees. With this structure, the suspension frame 1 can keep the load-bearing center of gravity of the driven boom 8 within the support range of the suspension frame 1, and it is also beneficial for the extension end of the photovoltaic cell panel support beam 3 to pass through the hollow space of the suspension frame 1, forming a cascade in turn. , to facilitate the cascade drive of more components. Of course, the suspension frame 1 can also adopt other structures capable of supporting and suspending the driven boom 8, but the effect is not as good as the suspension frame adopted in this embodiment. The free end of the driving boom 4 is fixedly connected to the photovoltaic panel support beam 3, and the extension end of the photovoltaic panel support beam 3 is connected and fixed to the free end of the driven boom 8, and the photovoltaic panel support beam 3 is connected to the center line of rotation 9 is parallel to and deviates from the center line of rotation 9, so that the supporting beam 3 takes the output rotating shaft as the center of a circle to do reciprocating motion under the drive of the driving boom 4, but the supporting beam 3 does not rotate. The photovoltaic panel 2 is installed and fixed on the upper end of the supporting beam 3 of the photovoltaic panel to form a sun-tracking movement assembly, and the center of gravity of the sun-tracking movement assembly is located at or close to the centerline of rotation 9 . The photovoltaic cell panel support beam 3 can be arranged and installed with a plurality of photovoltaic cell panels 2 in order to form a photovoltaic cell panel group. In order to reduce the weight of the photovoltaic cell panel support beam 3, it is preferable to adopt a tubular structure for the photovoltaic cell panel support beam 3, such as adopting steel pipes or other metal tubes, or even high-strength polymer material tubes to make the photovoltaic cell panel support beam 3. The purpose of reducing weight can be achieved, and at the same time, the support strength of the photovoltaic panel support beam 3 can be ensured. The installation and fixing method of the photovoltaic cell panel 2 and the photovoltaic cell panel support beam 3 adopts a hoop fixing method, and the photovoltaic cell panel 2 is fixed on the photovoltaic cell panel support beam 3 through the hoop 16, specifically in the photovoltaic cell panel support beam 3. Fix the purlin 14 on the back of the battery panel 2 with bolts, and hug the photovoltaic panel support beam 3 with the hoop 16. The hoop 16 is fixedly connected with the purlin 14 on the back of the photovoltaic panel 2 through bolts to form a support between the photovoltaic panel 2 and the photovoltaic panel. The crossbeam 3 is fastened and installed so that the photovoltaic cell panel 2 is located at the upper end of the photovoltaic cell panel support crossbeam 3 when it is in a horizontal state. Alternatively, the hoop 16 adopts U-shaped bolts, and directly hugs the supporting beam 3 of the photovoltaic cell panel and fixes the purlin 14 on the back of the photovoltaic cell panel 2 through the U-shaped bolt. During production, after the dimensions of the photovoltaic cell panel 2 and the photovoltaic cell panel support beam 3 are determined, by changing the lengths of the purlin 14 and the body-moving boom 4 and the driven boom 8, the position of the center of gravity of the sun-tracking motion assembly can be changed, so that The center of gravity of the sun-tracking movement assembly is located on the slewing centerline 9 or as close as possible to the slewing centerline 9, so the moment generated by the gravity of the sun-tracking movement assembly on the slewing center of gravity axis reaches the minimum. If the center of gravity of the sun-tracking motion assembly is on the rotation centerline 9, the moment generated by the gravity of the sun-tracking motion assembly on the rotation center axis is zero, and within the entire rotation range, the sun-tracking motion assembly can be in a roughly balanced state, and will not It rotates by itself under the action of gravity, and the required driving torque of the electric actuator 5 also reaches the minimum.

When the field equipment is installed, there is one supporting column 6 of the driving device, and multiple supporting columns 7 of the suspension frame are arranged side by side along the north-south direction, and one end of the supporting beam 3 of the photovoltaic panel is supported by the driving device on the electric actuator 5 The output rotating shaft 12 is fixedly connected to the driving boom 4 and is supported by suspension. The extension end of the photovoltaic panel support beam 3 is supported by multiple suspension frames side by side. Support, the photovoltaic cell panel support beam 3 can be connected in multiple stages to extend in a straight line along the north-south direction, on the photovoltaic panel support beam 3 between the drive device support column 6 and the suspension frame support column 7, and two adjacent suspension frame support columns On the supporting beams 3 of the photovoltaic panels between 7, a plurality of photovoltaic panels 2 are arranged and fixed in order to form a multi-stage connected photovoltaic sun-tracking movement component, so that the photovoltaic panels 2 can do things under the drive of an electric actuator. Turning direction, tracking and facing the sun within a certain angle range, accepting more solar radiation energy, and obtaining greater power generation revenue. Realize multi-point support on a straight line with a linear multi-stage linkage structure driven by an electric actuator, and use the same driving power to drive a greater number or greater power of photovoltaic panels, and the input and output are relatively large.

Or as shown in Figure 1, the said driving device supporting column 6 is one, and the driving device supporting column 6 is located in the middle of a plurality of suspension frame supporting columns 7 arranged side by side along the north-south direction, and the driving device supports the electric actuator 5 on the column 6. The left and right ends of the output rotating shaft 12 are respectively fixedly connected with driving booms 4, and each of the two driving booms 4 is suspended and fixedly connected with a photovoltaic cell panel support beam 3, and the extension ends of the left and right photovoltaic cell panel support beams 3 are located respectively by A plurality of suspension frame support columns 7 arranged side by side on the left and right sides of the drive unit support column 6 are suspended by the driven boom 8 hinged by the suspension frame 1 to form a multi-point support, between the drive unit support column 6 and the suspension frame support column 7 On the photovoltaic cell panel support beam 3 and on the photovoltaic cell panel support beam 3 between two adjacent suspension frame support columns 7, a plurality of photovoltaic cell panels 2 are arranged and fixed in sequence to form a multi-stage connected photovoltaic solar tracking movement assembly , so that the photovoltaic cell panel 2 is driven by an electric actuator to rotate in the east-west direction, track and face the sun within a certain angle range, receive more solar radiation energy, and obtain greater power generation revenue. In this way, a linear multi-stage linkage structure driven by an electric actuator located in the middle is realized, and the power transmission is more balanced and stable, which can maximize the drive of a greater number or greater power of photovoltaics under the same driving power. The battery board maximizes the input-output ratio, saves driving power to the maximum, greatly reduces the sun-tracking driving power required for the same power generation capacity, and reduces production and use costs. This system can be linked in a linear multi-level manner, with a convenient layout and land saving, which facilitates the mechanized operation of photovoltaic panel cleaning and washing, and reduces the labor intensity of workers.

When the photovoltaic power generation hanging type solar tracking support system is working, the electric actuator is controlled by the program to drive the multi-stage connected photovoltaic solar tracking motion components to rotate in the east-west direction according to the set track of the sun from sunrise to sunset in a day, so that the photovoltaic cells The panels track and face the sun within a certain angle range, receive more solar radiation energy, and obtain greater power generation revenue. Since the maximum rotation angle of the free end of the driving boom 4 is 160 degrees, the photovoltaic panel 2 can change the angle within 160 degrees to realize the sun-tracking movement, advance the initial sun-tracking time of sunrise, and shorten the termination time of sunset. Delay, so that the daily time of receiving solar radiation energy is lengthened, so that the power generation capacity per unit area is improved.

Claims (10)

1. a kind of photovoltaic generation suspension type solar tracking support system, including photovoltaic battery panel (2), support post, it is characterised in that：Institute Support post is stated including driving means support post (6), hanger bracket support post (7), on the driving means support post (6) Electric operator (5) is set, and the output revolving shaft (12) of the electric operator (5) is fixedly connected driving arm (4), described The lower end for driving arm (4) is free end, and hanger bracket (1), the hanger bracket (1) are arranged on the hanger bracket support post (7) On be hinged a driven arm (8), driven arm (8) upper end is fixing end, and the end is hinged by hinge with hanger bracket (1), The hinge is located at same centre of gyration line (9) with output revolving shaft, and the lower end of driven arm (8) is free end, and the driving is hung The free end of arm (4) is fixedly connected photovoltaic battery panel support beam (3), the elongated end of photovoltaic battery panel support beam (3) with from The free end of dynamic arm (8) is connected, and the photovoltaic battery panel support beam (3) is parallel with centre of gyration line (9) and deviates Centre of gyration line (9), the photovoltaic battery panel (2) is fixed on composition solar tracking campaign in photovoltaic battery panel support beam (3) Component, the center of gravity of the solar tracking moving parts is located near or at centre of gyration line (9).

2. photovoltaic generation suspension type solar tracking support system according to claim 1, it is characterised in that：The electronic execution machine Structure (5) includes reducing motor (10), turbine and worm decelerator (11), the turbine of the turbine and worm decelerator (11) and the electricity that slows down The axle connection of machine (10), the worm screw of the turbine and worm decelerator (11) is that output revolving shaft (12) is connected with arm (4) is driven.

3. photovoltaic generation suspension type solar tracking support system according to claim 1 and 2, it is characterised in that：The output turns The circumferentially fixed connection output flange (13) of axle (12), is connected by output flange (13) with arm (4) flange is driven.

4. photovoltaic generation suspension type solar tracking support system according to claim 1, it is characterised in that：The hanger bracket (1) For domes, the domes hanger bracket (1) is provided with the hinged seat (1a) for extending downwardly, driven arm positioned at interior empty top (8) fixing end is hinged by the axis hole (1b) of setting on hinge and hinged seat 1a, and the interior sky of hanger bracket (1) leaves and allows driven hanging Arm (8) free end is respectively to the left, turning right 80 degree allows bit space (1c).

5. photovoltaic generation suspension type solar tracking support system according to claim 1, it is characterised in that：The photovoltaic battery panel (2) photovoltaic battery panel support beam (3) upper end is fixed on by anchor ear (16).

6. photovoltaic generation suspension type solar tracking support system according to claim 5, it is characterised in that：The anchor ear (16) is adopted Use U bolt.

7. photovoltaic generation suspension type solar tracking support system according to claim 1, it is characterised in that：The driving means Support column (6) be one, the hanger bracket support post (7) for it is multiple side by side, described photovoltaic battery panel support beam (3) one end Driving arm (4) hanging being fixedly connected by electric operator (5) output revolving shaft (12) on driving means support post (6) Support, the elongated end of photovoltaic battery panel support beam (3) is hinged by hanger bracket (1) on multiple hanger bracket support posts (7) side by side Driven arm (8) hanging form multi-point support, the light between driving means support post (6) and hanger bracket support post (7) On volt cell panel support beam (3), and the photovoltaic battery panel support beam (3) between two adjacent hanger bracket support posts (7) On, fixedly mount polylith photovoltaic battery panel (2).

8. the photovoltaic generation suspension type solar tracking support system according to claim 1 or 7, it is characterised in that：It is described to drive dress Support post (6) is put for one, the driving means support post (6) is positioned at multiple hanger bracket support posts (7) being arranged side by side Centre, the left and right two ends of the output revolving shaft (12) of electric operator (5) are respectively fixedly connected with driving means support post (6) There is driving arm (4), two drive each hanging of arm (4) to be fixedly connected a photovoltaic battery panel support beam (3), left and right photovoltaic The elongated end of cell panel support beam (3) is multiple by what is be arranged side by side positioned at driving means support post (6) the right and left respectively Driven arm (8) hanging that hanger bracket (1) is hinged on hanger bracket support post (7) forms multi-point support.

9. photovoltaic generation suspension type solar tracking support system according to claim 1, it is characterised in that：The driving arm (4) the maximum rotation angle of free end is 160 degree.

10. photovoltaic generation suspension type solar tracking support system according to claim 1, it is characterised in that：The photovoltaic cell Plate support beam (3) adopts tubular structure.