CN215572859U - Photovoltaic tracker precision measurement device - Google Patents
Photovoltaic tracker precision measurement device Download PDFInfo
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- CN215572859U CN215572859U CN202121260709.7U CN202121260709U CN215572859U CN 215572859 U CN215572859 U CN 215572859U CN 202121260709 U CN202121260709 U CN 202121260709U CN 215572859 U CN215572859 U CN 215572859U
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Abstract
The utility model provides a photovoltaic tracker precision measuring device, which comprises: the top surface of the test disc is provided with a transverse axis mark and a longitudinal axis mark which are mutually vertical; the straight rod is arranged in the center of the test disc; the surface of the test disc is also provided with a plurality of concentric circular marks with the center as the circle center and different radiuses, and each circular mark is provided with angle scales. The device can read out the operation precision of the photovoltaic tracker fast and visually, and is favorable for adjusting and improving the operation of the photovoltaic tracker.
Description
Technical Field
The utility model relates to the technical field of precision measurement of photovoltaic trackers, in particular to a precision measurement device of a photovoltaic tracker.
Background
The photovoltaic tracker mainly comprises a double-shaft tracker and a single-shaft tracker. The biaxial tracker mainly tracks the altitude angle of the sun through the pitching direction and tracks the azimuth angle of the sun through the horizontal direction, so that the sunlight keeps vertically incident to the whole photovoltaic module surface of the biaxial tracker; the single-axis tracker mainly tracks the azimuth angle of the sun, so that the sunlight is normally incident to the whole photovoltaic module surface of the single-axis tracker as much as possible. The operation accuracy of the photovoltaic tracker is usually defined by a difference value between a target angle and an actual operation angle of the tracker, and because the geographic positions of the photovoltaic trackers in a photovoltaic power station are different, the operation accuracy of the photovoltaic trackers is difficult to rapidly determine, and the adjustment and improvement of the photovoltaic trackers are not facilitated. Therefore, a measuring device capable of reading out the operation accuracy of the photovoltaic tracker rapidly and intuitively is needed so as to improve the adjustment of the operation of the photovoltaic tracker.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a photovoltaic tracker precision measuring device which can read out the operation precision of a photovoltaic tracker quickly and visually and is beneficial to adjusting and improving the operation of the photovoltaic tracker.
The technical scheme provided by the utility model is as follows:
the utility model provides a photovoltaic tracker precision measuring device, which comprises:
the top surface of the test disc is provided with a transverse axis mark and a longitudinal axis mark which are mutually vertical;
the straight rod is arranged in the center of the test disc;
the surface of the test disc is also provided with a plurality of concentric circular marks with the center as the circle center and different radiuses, and each circular mark is provided with angle scales.
Specifically, the angle scale is related to the length of the straight rod, the length of the straight rod is set to be h, the projection length of the straight rod on the test disc is d, the tracking deviation angle can be obtained according to a tangent formula, and the corresponding tracking deviation angles are obtained by projecting end points at different positions.
Through setting up the test tray, the test tray is placed near the photovoltaic tracker axis of rotation or on the subassembly, and set up mutually perpendicular's cross axle sign and axis of ordinates sign at the top surface of test tray, install the straight-bar at the center of test tray, make the straight-bar when vertical, can appear the projection on the test tray, set up a plurality of and use the center of test tray as the concentric circular sign of a plurality of different radiuses of centre of a circle again on the surface of test tray, and all be provided with the angle scale on every circular sign, it is quick to make according to projection position and angle scale, the operation precision of photovoltaic tracker is read out directly perceived, thereby make the operation precision measurement of photovoltaic tracker simpler, and is convenient, be favorable to adjusting the operation of photovoltaic tracker and improve.
Furthermore, longitudinal marks tangent to the circular marks are arranged at the joints of the circular marks and the cross shaft marks;
and transverse marks tangent to the circular marks are arranged at the joints of the circular marks and the longitudinal axis marks.
The photovoltaic tracker mainly comprises a double-shaft tracker and a single-shaft tracker, the running accuracy deviation calculation of the double-shaft tracker and the single-shaft tracker is slightly different, and when the running accuracy of the double-shaft tracker is measured, the deviation value of a tracking angle can be directly read from the scale surface of a test disc; when the operation accuracy of the single-axis tracker is measured, the projection of the straight rod needs to be projected to the transverse axis again to read out the deviation value of the tracking angle, so that a longitudinal mark tangent to the circular mark can be arranged at the joint of the circular mark and the transverse axis mark, and a transverse mark tangent to the circular mark is arranged at the joint of the circular mark and the longitudinal axis mark, so that the deviation value of the tracking angle can be determined when the operation accuracy of the single-axis tracker is measured.
Further, the straight rod rotates along a vertical plane where the longitudinal axis mark is located; or
The straight rod rotates along a vertical plane where the cross shaft mark is located.
Specifically, in order to guarantee the measuring accuracy and avoid the straight rod from inclining to two sides, the rod can be set to rotate along the vertical plane where the longitudinal axis mark is located, or rotate along the vertical plane where the transverse axis mark is located.
Further, the rotating angle of the straight rod is 0-90 degrees.
During measurement, the straight rod needs to be ensured to be vertical, and the rotating angle of the straight rod can be set between 0 and 90 degrees, so that the straight rod is just vertical when rotating to the maximum angle.
Further, a straight groove is arranged on the transverse axis mark or the longitudinal axis mark;
one end of the straight groove is positioned in the center, and the other end of the straight groove extends to the side face of the test disc;
the straight rod is matched with the straight groove.
Specifically, in order to ensure that the straight rod rotates in the vertical direction all the time, a straight groove can be arranged on the cross shaft mark or the longitudinal shaft mark, one end of the straight groove is located at the center of the test disc, the other end of the straight groove extends to the side face of the test disc, the straight rod is matched with the straight groove, and the rotation of the straight rod is limited.
Further, the depth of the straight groove is equal to the thickness of the straight rod, so that the straight rod can be exactly positioned in the straight groove when being rotated to be horizontal.
Further, the distances between adjacent circular marks are equal.
In order to facilitate the observation of the deviation value of the tracking angle, the distances between the adjacent circular marks may be set to be equal, so that the difference between the two adjacent angle scales is equal, and of course, in other embodiments, the distances may also be set to be unequal, for example, the distance between the inner adjacent circular marks is smaller, and the distance between the outer adjacent circular marks is larger and larger.
Further, the difference between two adjacent angle scales is 1 °.
Since the tracking accuracy beta of the crystal silicon type assembly and the biaxial tracker is within 2 degrees, both belong to the normal operation range, the difference between two adjacent angle scales can be set to be 1 degree so as to determine whether the deviation value of the tracking angle is within the normal range, and of course, in other embodiments, a smaller difference can be set in order to improve the measurement accuracy.
Further, the straight rod is a foldable straight rod.
Through setting up the straight-bar into collapsible straight-bar, be favorable to accomodating and carrying the device.
Furthermore, the test disc is a circular disc, and the center of the test disc is the circle center.
Specifically, in order to facilitate observation of the deviation value of the tracking angle, the test disc may be set as a circular disc, so that the center of the test disc is the center of a circle.
According to the photovoltaic tracker precision measuring device provided by the utility model, the test disc is arranged near or on the rotating shaft of the photovoltaic tracker or on the component, the top surface of the test disc is provided with the transverse axis mark and the longitudinal axis mark which are perpendicular to each other, the central straight rod of the test disc enables the straight rod to be projected on the test disc when the straight rod is vertical, the surface of the test disc is provided with a plurality of concentric circular marks with different radiuses and taking the center of the test disc as the center of a circle, and each circular mark is provided with the angle scale, so that the running precision of the photovoltaic tracker can be rapidly and intuitively read according to the projection position and the angle scale, the running precision measurement of the photovoltaic tracker is simpler and more convenient, and the adjustment and improvement on the running of the photovoltaic tracker are facilitated.
Drawings
The foregoing features, technical features, advantages and embodiments of the present invention will be further explained in the following detailed description of the preferred embodiments, which is to be read in connection with the accompanying drawings.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a straight rod after rotation according to an embodiment of the utility model;
FIG. 3 is a schematic representation of dual axis tracker measurement results for an embodiment of the present invention;
FIG. 4 is a schematic diagram of single and dual axis tracker measurements of an embodiment of the present invention;
FIG. 5 is a schematic diagram of a straight rod projection and angle deviation principle according to an embodiment of the present invention; .
Reference numbers in the figures: 1-test disc; 2-horizontal axis identification; 3-longitudinal axis identification; 4-straight rod; 5-circular identification; 6-longitudinal marking; 7-transverse marking; 8-straight groove.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the utility model, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
Example 1
In one embodiment of the present invention, as shown in fig. 1 to 4, the present invention provides a photovoltaic tracker accuracy measuring apparatus, which includes a test tray 1 and a straight bar 4.
The top surface of the test tray 1 is provided with a horizontal axis mark 2 and a vertical axis mark 3 perpendicular to each other. The straight rod 4 is installed in the center of the test disc 1, and specifically, the straight rod 4 and the test disc can be movably connected through hinges, movable connecting pieces and the like.
Preferably, the straight rod 4 is a foldable straight rod 4, and the straight rod 4 is set to be the foldable straight rod 4, so that the device can be conveniently stored and carried.
Preferably, the test disc 1 is a circular disc, and the center of the test disc 1 is a circle center.
Specifically, in order to facilitate observation of the deviation value of the tracking angle, the test disc 1 may be configured as a circular disc, so that the center of the test disc 1 is a circle center, and in other embodiments, the test disc 1 may be configured as a square, a rectangle, or the like.
The surface of the test disc 1 is also provided with a plurality of concentric circular marks 5 with different radiuses and taking the center of the test disc 1 as the center of a circle, and each circular mark 5 is provided with angle scales.
Specifically, as shown in fig. 5, the angle scale is related to the length of the straight rod 4, the length of the straight rod 4 is set to be h, the projection length of the straight rod 4 on the test disc 1 is set to be d, the tracking deviation angle can be obtained according to a tangent formula, and the corresponding tracking deviation angle can be obtained at the end points of the projections at different positions.
Through setting up test disc 1, test disc 1 is placed near the photovoltaic tracker axis of rotation or on the subassembly, and set up mutually perpendicular's cross axle sign 2 and axis of ordinates sign 3 at the top surface of test disc 1, locate straight-bar 4 at the center of test disc 1, make when straight-bar 4 is vertical, can appear the projection on test disc 1, set up a plurality of circular sign 5 that uses the center of test disc 1 as the centre of a circle on the surface of test disc 1 again, and be provided with the angle scale on every circular sign 5, make can be quick according to projection position and angle scale, the operation precision of photovoltaic tracker is directly perceived to read out, thereby make the operation precision measurement of photovoltaic tracker simpler, and is convenient, be favorable to adjusting the operation of photovoltaic tracker and improve.
Example 2
In one embodiment of the present invention, as shown in fig. 1 to 4, on the basis of embodiment 1, longitudinal marks 6 tangent to the circular marks 5 are arranged at the joints of the circular marks 5 and the horizontal axis marks 2; the joints of the circular marks 5 and the longitudinal axis marks 3 are provided with transverse marks 7 tangent to the circular marks 5.
Because the photovoltaic tracker mainly comprises a double-shaft tracker and a single-shaft tracker, the running accuracy deviation calculation of the double-shaft tracker and the single-shaft tracker is slightly different, and when the running accuracy of the double-shaft tracker is measured, the deviation value of the tracking angle can be directly read from the scale surface of the test disc 1; when the operation accuracy of the single-axis tracker is measured, the projection of the straight rod 4 needs to be projected towards the transverse axis again to read out the deviation value of the tracking angle, so that a longitudinal mark 6 tangent to the circular mark 5 can be arranged at the joint of the circular mark 5 and the transverse axis mark 2, and a transverse mark 7 tangent to the circular mark 5 is arranged at the joint of the circular mark 5 and the longitudinal axis mark 3, so that the deviation value of the tracking angle can be determined when the operation accuracy of the single-axis tracker is measured.
Example 3
In one embodiment of the present invention, based on embodiment 1 or 2, the straight rod 4 rotates along the vertical plane where the longitudinal axis mark 3 is located; or the straight rod 4 rotates along the vertical plane on which the transverse axis mark 2 is located.
Specifically, in order to ensure the measurement accuracy and avoid the straight rod 4 from inclining to both sides, the rod may be set to rotate along the vertical plane where the longitudinal axis mark 3 is located, or rotate along the vertical plane where the transverse axis mark 2 is located.
Preferably, the rotation angle of the straight rod 4 is between 0 and 90 °.
During measurement, the straight rod 4 needs to be ensured to be vertical, and the rotating angle of the straight rod 4 can be set between 0 and 90 degrees, so that the straight rod 4 is just vertical when rotating to the maximum angle.
Preferably, as shown in fig. 1, 3 and 4, the horizontal axis mark 2 or the vertical axis mark 3 is provided with a straight groove 8; one end of the straight groove 8 is positioned in the center of the test disc 1, and the other end of the straight groove extends to the side surface of the test disc 1; the straight rod 4 is matched with the straight groove 8.
Specifically, in order to ensure that the straight rod 4 rotates in the vertical direction all the time, a straight groove 8 can be arranged on the cross shaft mark 2 or the longitudinal shaft mark 3, one end of the straight groove 8 is located at the center of the test disc 1, the other end of the straight groove extends to the side face of the test disc 1, the straight rod 4 is matched with the straight groove 8, and the rotation of the straight rod 4 is limited.
Further preferably, the depth of the straight groove 8 is equal to the thickness of the straight rod 4, so that the straight rod 4 can be just positioned in the straight groove 8 when being rotated to be horizontal.
Example 4
In an embodiment of the present invention, as shown in fig. 1 to 4, on the basis of any one of embodiments 1 to 3, the distances between adjacent circular marks 5 are equal.
In order to facilitate the observation of the deviation value of the tracking angle, the distances between the adjacent circular marks 5 may be set to be equal, so that the difference between the two adjacent angle scales is equal, and of course, in other embodiments, the distances may be set to be unequal, for example, the distance between the inner adjacent circular marks 5 is smaller, and the distance between the outer adjacent circular marks 5 is larger.
Preferably, the difference between two adjacent angle scales is 1 °.
Since the tracking accuracy beta of the crystal silicon type assembly and the biaxial tracker is within 2 degrees, both belong to the normal operation range, the difference between two adjacent angle scales can be set to be 1 degree so as to determine whether the deviation value of the tracking angle is within the normal range, and of course, in other embodiments, a smaller difference can be set in order to improve the measurement accuracy.
When the scheme is specifically implemented, when the scheme is used for precision measurement of a double-axis tracker of a photovoltaic system, a clear day is selected, a measuring device can be flatly placed on a support or a component near a rotating shaft of the tracker, a deviation value of a tracking angle can be directly read from a scale disc surface of a test disc 1 according to the projection length d from a straight rod 4 to the test disc 1 and the position condition of a circular mark 5, as shown in fig. 3, a black column is a projection of the straight rod, and the position pointed by the projection top end represents that the deviation angle of the tracker is slightly higher than 2 degrees.
When the single-axis tracker used for the photovoltaic system is used for precision measurement, a fine day is selected, the local time is preferably 9: 00-15: 00, the measuring device can be horizontally placed on a support or a component near the rotating shaft of the tracker, the measuring device projects to the horizontal axis according to the projection length d from the straight rod 4 to the test disc 1, the deviation value of the tracking angle can be read from the scale disc surface of the test disc 1, as shown in fig. 4, the black column is projected by the straight rod and projects to the horizontal axis again, and the position indicated by the secondary projection represents that the deviation angle of the tracker is slightly lower than 2 degrees.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A photovoltaic tracker precision measurement device, comprising:
the top surface of the test disc is provided with a transverse axis mark and a longitudinal axis mark which are mutually vertical;
the straight rod is arranged in the center of the test disc;
the surface of the test disc is also provided with a plurality of concentric circular marks with the center as the circle center and different radiuses, and each circular mark is provided with angle scales.
2. The photovoltaic tracker accuracy measurement apparatus of claim 1, wherein: the joints of the circular marks and the cross shaft marks are provided with longitudinal marks tangent to the circular marks;
and transverse marks tangent to the circular marks are arranged at the joints of the circular marks and the longitudinal axis marks.
3. The photovoltaic tracker accuracy measurement apparatus of claim 1, wherein: the straight rod rotates along a vertical plane where the longitudinal axis mark is located; or
The straight rod rotates along a vertical plane where the cross shaft mark is located.
4. The photovoltaic tracker accuracy measurement apparatus of claim 3, wherein: the rotating angle of the straight rod is 0-90 degrees.
5. The photovoltaic tracker accuracy measurement apparatus of claim 1, wherein: a straight groove is arranged on the transverse shaft mark or the longitudinal shaft mark;
one end of the straight groove is positioned in the center, and the other end of the straight groove extends to the side face of the test disc;
the straight rod is matched with the straight groove.
6. The photovoltaic tracker accuracy measurement apparatus of claim 5, wherein: the depth of the straight groove is equal to the thickness of the straight rod.
7. The photovoltaic tracker accuracy measurement apparatus of claim 1, wherein: the distances between the adjacent circular marks are equal.
8. The photovoltaic tracker accuracy measurement apparatus of claim 7, wherein: the difference between two adjacent angle scales is 1 degree.
9. The photovoltaic tracker accuracy measurement apparatus of any one of claims 1 to 8, wherein: the straight rod is a foldable straight rod.
10. The photovoltaic tracker accuracy measurement apparatus of any one of claims 1 to 8, wherein: the test disc is a circular disc, and the center of the test disc is the circle center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121260709.7U CN215572859U (en) | 2021-06-07 | 2021-06-07 | Photovoltaic tracker precision measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121260709.7U CN215572859U (en) | 2021-06-07 | 2021-06-07 | Photovoltaic tracker precision measurement device |
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| Publication Number | Publication Date |
|---|---|
| CN215572859U true CN215572859U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121260709.7U Active CN215572859U (en) | 2021-06-07 | 2021-06-07 | Photovoltaic tracker precision measurement device |
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| CN (1) | CN215572859U (en) |
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2021
- 2021-06-07 CN CN202121260709.7U patent/CN215572859U/en active Active
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