CN114826124B - Photovoltaic power station tracking and adjusting system - Google Patents
Photovoltaic power station tracking and adjusting system Download PDFInfo
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- CN114826124B CN114826124B CN202210439475.5A CN202210439475A CN114826124B CN 114826124 B CN114826124 B CN 114826124B CN 202210439475 A CN202210439475 A CN 202210439475A CN 114826124 B CN114826124 B CN 114826124B
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- 238000009434 installation Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 85
- 230000008859 change Effects 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 230000003068 static effect Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 5
- 230000002441 reversible effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract 1
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- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
- H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/50—Arrangement of stationary mountings or supports for solar heat collector modules comprising elongate non-rigid elements, e.g. straps, wires or ropes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
- F24S25/70—Arrangement of stationary mountings or supports for solar heat collector modules with means for adjusting the final position or orientation of supporting elements in relation to each other or to a mounting surface; with means for compensating mounting tolerances
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Photovoltaic Devices (AREA)
Abstract
The application relates to a tracking and adjusting system of a photovoltaic power station, which comprises a plurality of rows of photovoltaic arrays, wherein each row of photovoltaic arrays is at least divided into three sections which are connected with each other, namely an upper section photovoltaic array, a middle section photovoltaic array and a lower Duan Guangfu array; the installation dip angle a of the middle section photovoltaic array is a fixed value and cannot be adjusted; the inclination angle a1 of the upper Duan Guangfu array and the inclination angle a2 of the lower section photovoltaic array can be respectively adjusted in a row; the method is characterized in that: the photovoltaic power station regulating system is composed of a plurality of groups of cable driving devices which span the upper part of the photovoltaic array; the inclination angle a1 of the upper Duan Guangfu array or/and the inclination angle a2 of the lower photovoltaic array are/is adjusted by a plurality of groups of cable driving devices.
Description
Technical Field
The application relates to a tracking and adjusting system of a photovoltaic power station, which divides a photovoltaic bracket and a photovoltaic array into an upper section, a middle section and a lower section, adopts a scheme that the middle section is fixed, the upper section and the lower section respectively and independently adjust angles, connects the photovoltaic arrays of each row together through a cable for unified adjustment, has simple structure and durability, and can realize an accurate adjustment target; belongs to the technical field of photovoltaic power stations.
Background
The existing tracking type support system for the photovoltaic power station has the problems of complex structure, high combination degree with the support system and the like. The service life of the tracking bracket in an open air environment is difficult to synchronize with the service life period (more than 15 years) of the photovoltaic power station, and the engineering quantity for maintenance and replacement when mechanical faults or ageing occur in the operation process of the photovoltaic power station is large.
In the ' 2020111411987 patent application ' method for adjusting the angle of a photovoltaic power station by sectionally adjusting the angle of a photovoltaic panel ', a scheme for dividing a photovoltaic array into three sections and adopting a scheme of fixing the middle section, and respectively and independently adjusting the angle of the upper section and the lower section is disclosed. However, the specific tracking adjustment system is not mechanically designed in this application. Based on the scheme, the adoption of the adjustment method which is integrated into zero actually relaxes the limit condition of the mechanical structure design of the tracking adjustment system, and has more flexible design space.
In summary, how to design a simple and practical photovoltaic power station tracking and adjusting system based on sectional adjustment becomes a problem to be solved.
Disclosure of Invention
The application aims to design a tracking and adjusting system of a photovoltaic power station, which is simple in structure, durable and capable of realizing an accurate adjusting target by connecting all rows of photovoltaic arrays together through cables and uniformly adjusting.
The technical scheme of the application is as follows: the photovoltaic power station comprises a plurality of rows of photovoltaic arrays, and each row of photovoltaic arrays is at least divided into three sections which are mutually connected, namely an upper section of photovoltaic array, a middle section of photovoltaic array and a lower Duan Guangfu array; the installation dip angle a of the middle section photovoltaic array is a fixed value and cannot be adjusted; the inclination angle a1 of the upper Duan Guangfu array and the inclination angle a2 of the lower section photovoltaic array can be respectively adjusted; the method is characterized in that: the photovoltaic power station tracking and adjusting system is composed of a plurality of groups of cable driving devices which span the upper part of the photovoltaic array; the inclination angle a1 of the upper Duan Guangfu array or/and the inclination angle a2 of the lower photovoltaic array are adjusted through a plurality of groups of cable driving devices;
the cable driving device comprises a first upright post, a second upright post, a main supporting cable, a first driving cable, a second driving cable, a plurality of first driven cables and a plurality of second driven cables;
the first stand columns and the second stand columns are respectively arranged on two sides of the photovoltaic arrays in a plurality of rows;
a main cable tensioning mechanism and two groups of driving mechanisms are arranged in the first upright post and the second upright post; the two groups of driving mechanisms are a first driving mechanism and a second driving mechanism respectively;
the main cable tensioning mechanism is used for penetrating the main supporting cable through the first upright post and the second upright post, and is fixed and in a tensioning state;
the first driving mechanism is used for penetrating the first driving cable through the first upright post and the second upright post and can be adjusted in a reciprocating manner;
the second driving mechanism is used for penetrating the second driving cable through the first upright post and the second upright post and can be adjusted in a reciprocating manner;
the main supporting cable is provided with a plurality of pulley mechanisms, the upper ends of the pulley mechanisms are fixed on the main supporting cable, and the lower ends of the pulley mechanisms comprise three groups of pulleys: a first pulley, a second pulley and a third pulley; the concrete connection structure comprises:
the first pulley mechanism is positioned above the upper edge of each upper section photovoltaic array, the first pulley is used for being in sliding connection with the first driving cable, the second pulley is used for being in sliding connection with the second driving cable, and the third pulley is used for being in sliding connection with the first driven cable; the upper end of the first driven cable is fixed on the first driving cable, passes through the rear lower end of the third pulley and is fixedly connected with a hinge at the upper edge of the upper Duan Guangfu array; the first driving cable is adjusted in a reciprocating manner through the first driving mechanism, the first driven cable is driven, and the upper-stage photovoltaic array is driven to change the inclination angle a1;
the second pulley mechanism is positioned above the lower edge of each lower section of the photovoltaic array, the first pulley is used for being in sliding connection with the first driving cable, the second pulley is used for being in sliding connection with the second driving cable, and the third pulley is used for being in sliding connection with the second driven cable; the upper end of the second driven cable is fixed on the second driving cable, passes through the rear lower end of the third pulley and is fixedly connected with a hinge at the lower edge of the lower section photovoltaic array; and the second driving cable is adjusted in a reciprocating manner through the second driving mechanism, so that the second driven cable is driven, and the lower section photovoltaic array is driven to change the inclination angle a2.
The pulley mechanism corresponds to the upper Duan Guangfu array and the lower section photovoltaic array respectively, the first driven cable corresponds to the upper Duan Guangfu array, and the second driven cable corresponds to the lower section photovoltaic array, namely corresponds to the row number of the photovoltaic arrays spanned by the first upright post and the second upright post respectively; thus, the number of first driven cables and first driven cables is the same as the number of rows of the photovoltaic array, and the total number of pulley mechanisms is twice the number of rows of the photovoltaic array.
Further, the main cable tensioning mechanism at least comprises a main cable paying-off wheel, a main cable tensioning wheel and a main cable take-up wheel; the main supporting cable sequentially passes through the main cable paying-off wheel, the main cable tensioning wheel and the main cable winding wheel; the main supporting cable is kept fixed and in a tensioning state under the combined action of the main cable paying-off wheel, the main cable tensioning wheel and the main cable take-up wheel.
Further, the driving mechanism at least comprises two driving wheels, namely a first driving wheel and a second driving wheel, and the two driving wheels are fixedly connected with the first upright post and the second upright post respectively; the first driving cable or the second driving cable is wound on the two driving wheels, and is in a tensioning state through the reverse movement of the two driving wheels;
the reciprocating adjustment is as follows: when the first driving wheel performs paying-off operation and the second driving wheel performs taking-up operation, the cable main body can slide towards the second driving wheel; when the second driving wheel performs paying-off operation and the first driving wheel performs taking-up operation, the cable main body can slide towards the first driving wheel.
Further, the driving mechanism further comprises one or more tensioning wheels for enabling the first driving cable or the second driving cable to be in a tensioning state.
Further, the mechanical structure matched with the driving wheel comprises: the motor, the limiting disc and the plug-in electromagnetic valve are fixedly arranged on a driving shaft of the motor, and a plurality of limiting holes are formed in the limiting disc;
in a static state, a pin on the plug-in electromagnetic valve is inserted into one limiting hole of the limiting disc, so that the driving shaft and the driving wheel cannot rotate;
when the driving wheel needs to rotate, the motor is started at first, the pin on the plug-in electromagnetic valve is pulled out of the limiting hole of the limiting disc, then the motor drives the driving wheel to rotate, and the pin on the plug-in electromagnetic valve is inserted into one limiting hole of the limiting disc after the driving wheel rotates in place, so that the driving shaft and the driving wheel cannot rotate.
Further, the motor is a stepping motor. The stepping motor can maintain static moment in a static state after being electrified, and the driving wheel is prevented from being out of control.
Further, the sectional area of the limiting hole of the limiting disc is larger than the sectional area of the pin on the plug-in electromagnetic valve. When the motor forms static moment, the transverse shearing force born by the pin is eliminated, and the pin is convenient to insert and pull.
The beneficial effects of the application are as follows:
1. the cable driving device has the advantages of simple structure, low failure rate and easy operation and maintenance;
2. the main body of the adjusting system is positioned above the photovoltaic array, is independent relative to the brackets at the bottom, does not need to install a driving mechanism or a linkage mechanism in each bracket, and is easy to replace if mechanical problems occur;
3. through first initiative cable, second initiative cable, first driven cable, second driven cable, establish ties a plurality of rows of photovoltaic array into a whole, can very convenient realization to each row of photovoltaic array's synchronous regulation.
Drawings
FIG. 1 is a top view of a photovoltaic power plant of the present application;
FIG. 2 is a schematic view of a photovoltaic array segment;
FIG. 3 is a front view of the cable drive device of the present application;
FIG. 4 is a front view of the cable drive device shown in FIG. 3 flipped 180 degrees;
FIG. 5 is a cross-sectional view A-A of the pulley mechanism of the present application;
FIG. 6 is a cross-sectional view B-B of the pulley mechanism of the present application;
FIG. 7 is a schematic diagram of the cable drive device adjustment process of the present application;
FIG. 8 is a schematic diagram (II) of the cable drive device adjustment process of the present application;
FIG. 9 is a schematic view of the drive mechanism of the present application;
FIG. 10 is a schematic view of the driving mechanism structure C-C of the present application;
wherein:
FIG. 3 includes a partial enlarged view (top view) of the first drive cable, the first driven cable, and the first anchor connection location;
FIG. 4 is a partial enlarged view (top view) of the second drive cable, second driven cable and second anchor connection location;
in fig. 7 and 8, the cable drive device is rotated and deployed into a plane for ease of illustration;
reference numerals in the drawings:
101: upper Duan Guangfu array, 102: middle stage photovoltaic array, 103: lower stage photovoltaic array, 104: photovoltaic support, 105: first upright, 106: a second upright;
2: a main support cable;
3: first active cable, 301: first driven cable, 302: a first holder;
4: second active cable, 401: second driven cable, 402: a second holder;
5: pulley mechanism, 501: first pulley, 502: second pulley, 503: third pulley, 504: a main cable holder;
6: main cable tensioning mechanism, 601: main cable paying-off wheel, 602: main cable tensioner, 603: a main cable take-up pulley;
7: first drive mechanism, 701: first drive wheel one, 702: first tensioning wheel, 703: a first driving wheel II;
8: second driving mechanism, 801: second drive wheel one, 802: second tensioning wheel, 803: a second driving wheel II;
9: a hinge;
10: motor, 1001: drive shaft, 1002: support frame, 1003: a driving wheel;
11: limit plate, 1101: a limiting hole;
12: plug-in solenoid valve 1201: and (5) a pin.
Detailed Description
The application is further described below with reference to the drawings and examples.
As shown in fig. 1, the example of the photovoltaic power station includes six rows of photovoltaic arrays, each row of photovoltaic arrays is divided into three sections connected with each other, and the sections of photovoltaic arrays are connected with each other through a hinge 9, namely an upper section of photovoltaic array 101, a middle section of photovoltaic array 102 and a lower Duan Guangfu array 103; as shown in fig. 2, the installation inclination angle a of the middle-stage photovoltaic array 102 is a fixed value and cannot be adjusted; the inclination angle a1 of the upper Duan Guangfu array 101 and the inclination angle a2 of the lower-stage photovoltaic array 103 can be respectively adjusted;
the photovoltaic power station tracking and adjusting system is composed of a plurality of groups of cable driving devices which span the upper part of the photovoltaic array; the inclination angle a1 of the upper Duan Guangfu array or/and the inclination angle a2 of the lower photovoltaic array are adjusted through a plurality of groups of cable driving devices; as shown in fig. 1, there are three sets of cable drives that extend through the photovoltaic array and collectively adjust the photovoltaic array; how many sets of cable drives are used depends on the particular length of the photovoltaic array.
The cable driving device comprises a first upright 105, a second upright 106, a main supporting cable 2, a first driving cable 3, a second driving cable 4, a plurality of first driven cables 301 and a plurality of second driven cables 401;
the first upright posts 105 and the second upright posts 106 are respectively arranged at two sides of the photovoltaic arrays in a plurality of rows;
the first upright column 105 and the second upright column 106 are internally provided with a main cable tensioning mechanism 6 and two groups of driving mechanisms; the two groups of driving mechanisms are a first driving mechanism 7 and a second driving mechanism 8 respectively;
the main rope tensioning mechanism 6 is used for penetrating the main supporting rope 2 through the first upright 105 and the second upright 106, and is fixed and in a tensioned state;
the first driving mechanism 7 is used for penetrating the first driving cable 3 through the first upright 105 and the second upright 106, can be in a tensioning state and can be adjusted in a reciprocating manner;
the second driving mechanism 8 is used for penetrating the second driving cable 4 through the first upright 105 and the second upright 106, can be in a tensioning state and can be adjusted in a reciprocating manner;
the main supporting cable 2 is provided with a plurality of pulley mechanisms 5, the upper ends of the pulley mechanisms 5 are fixed on the main supporting cable 2 through a main cable fixer 504, and the lower ends comprise three groups of pulleys: a first pulley 501, a second pulley 502, a third pulley 503; the concrete connection structure comprises:
first, a set of pulley mechanisms 5 is located above the upper edge of each upper segment of the photovoltaic array 101, a first pulley 501 is used for sliding connection with the first driving cable 3, a second pulley 502 is used for sliding connection with the second driving cable 4, and a third pulley 503 is used for sliding connection with the first driven cable 301; the upper end of the first driven cable 301 is fixed on the first driving cable 3 through a first fixer 302, and passes through the rear lower end of the third pulley 503 to be fixedly connected with the hinge 9 at the upper edge of the upper Duan Guangfu array 101; the first driving cable 3 is adjusted in a reciprocating manner through the first driving mechanism 7, so that the first driven cable 301 is driven, and the upper-stage photovoltaic array 101 is driven to change the inclination angle a1;
wherein the length of the first driven cable 301 is L1, the length from the first anchor 302 to the pulley mechanism 5 is L12, the length of the hinge 9 from the pulley mechanism 5 to the upper edge of the upper photovoltaic array 101 is L11, l1=l11+l12, and the lengths of L11 and L12 will change when the first driving cable 3 is reciprocally adjusted by the first driving mechanism 7;
second, another set of pulley mechanisms 5 is located above the lower edge of each lower segment of the photovoltaic array 103, a first pulley 501 is used for sliding connection with the first driving cable 3, a second pulley 502 is used for sliding connection with the second driving cable 4, and a third pulley 503 is used for sliding connection with the second driven cable 401; the upper end of the second driven cable 401 is fixed on the second driving cable 4 through a second fixer 402, and passes through the rear lower end of the third pulley 503 to be fixedly connected with the hinge 9 of the lower edge of the lower section photovoltaic array 103; the second driving cable 4 is adjusted in a reciprocating manner through the second driving mechanism 8, so that the second driven cable 401 is driven, and the lower-stage photovoltaic array 103 is driven to change the inclination angle a2;
wherein the length of the second driven cable 401 is L2, the length from the second anchor 402 to the pulley mechanism 5 is L22, the length of the hinge 9 from the pulley mechanism 5 to the lower edge of the lower photovoltaic array 103 is L21, l2=l21+l22, and the lengths of L21 and L22 will change as the second driving cable 4 is reciprocally adjusted by the second driving mechanism 8.
It should be noted that, for the sake of brevity, only two rows of photovoltaic arrays are included in fig. 3 and 4, and the present application can be extended to more rows of photovoltaic arrays.
The main cable tensioning mechanism 6 at least comprises a main cable paying-off wheel 601, a main cable tensioning wheel 602 and a main cable take-up wheel 603; the main cable paying-off wheel 601 and the main cable take-up wheel 603 are fixedly connected with the first upright 105 and the second upright 106 respectively, the main cable paying-off wheel 601 and the main cable tensioning wheel 602 are fixedly arranged on the outer side of the first upright 105, and the main cable tensioning wheel 602 and the main cable take-up wheel 603 are fixedly arranged on the outer side of the second upright 106; the main supporting cable 2 sequentially passes through a main cable paying-off wheel 601, two main cable tensioning wheels 602 and a main cable winding wheel 603; the main support cable 2 is kept fixed and in tension by the combined action of the main cable paying-off wheel 601, the main cable tension wheel 602 and the main cable take-up wheel 603.
It should be noted that, since the main supporting cable 2 plays a role of bearing, it is required to keep the main supporting cable 2 fixed and in tension during use, and the main supporting cable 2 should be selected from steel cables with larger diameters and higher strength than other cables.
The driving mechanism at least comprises two driving wheels, namely a first driving wheel and a second driving wheel, and the two driving wheels are fixedly connected with the first upright post 105 and the second upright post 106 respectively; the first driving cable 3 or the second driving cable 4 is wound on the two driving wheels, and the first driving cable 3 or the second driving cable 4 is in a tensioning state through the reverse movement of the two driving wheels;
the reciprocating adjustment is as follows:
when the first driving wheel performs paying-off operation and the second driving wheel performs taking-up operation, the cable main body can slide towards the second driving wheel;
when the second driving wheel performs paying-off operation and the first driving wheel performs taking-up operation, the cable main body can slide towards the first driving wheel.
The driving mechanism also comprises one or more tensioning wheels.
After each time of adjustment, one of the two driving wheels of the driving mechanism is first locked, and then the other driving wheel is driven to take up, so that the cable is in a fully tensioned state and then the other driving wheel is locked.
Specifically, as shown in fig. 1, 3 and 4, the first active cable 3 and the second active cable 4 are respectively positioned at two sides below the main supporting cable 2; the first 301 and second 401 driven cables are located directly below the main support cable 2; the first driving mechanism 7 and the second driving mechanism 8 are arranged on the inner sides of the first upright post 105 and the second upright post 106 and are distributed in a bilateral symmetry manner. A plurality of triangular support frames are respectively arranged on the first upright 105 and the second upright 106 and used for installing each driving wheel and the tensioning wheel, and the triangular support frames comprise:
the first driving mechanism 7 includes a first driving wheel 701 and a first tensioning wheel 702 mounted on the inner side of the first upright 105, and a first tensioning wheel 702 and a second driving wheel 703 mounted on the inner side of the second upright 106; the first driving cable 3 sequentially passes through the first driving wheel 701, the two first tensioning wheels 702 and the first driving wheel 703, and the two driving wheels are mutually matched to enable the first driving cable 3 to reciprocate, drive a plurality of first driven cables 301 and drive a plurality of upper-stage photovoltaic arrays 101 to change the inclination angle a1, so that an adjusting function is realized;
the second driving mechanism 8 includes a first driving wheel 801 and a second tensioning wheel 802 mounted on the inner side of the second upright 106, and a second tensioning wheel 802 and a second driving wheel 803 mounted on the inner side of the first upright 105; the second driving cable 4 sequentially passes through the first second driving wheel 801, the two second tensioning wheels 802 and the second driving wheel 803, and the two driving wheels are mutually matched to enable the second driving cable 4 to reciprocate, drive the plurality of second driven cables 401 and drive the plurality of lower-stage photovoltaic arrays 102 to change the inclination angle a2, so that the adjusting function is realized.
As shown in fig. 7, the overall shape of the photovoltaic array corresponding to fig. 3 is a zigzag shape, the length of the first driven cable 301 is L1, the length from the first anchor 302 to the pulley mechanism 5 is L12, the length of the hinge 9 from the pulley mechanism 5 to the upper edge of the upper-stage photovoltaic array 101 is L11, l1=l11+l12, and the L11 stage is substantially perpendicular to the ground plane; the second driven cable 401 has a length L2, the second anchor 402 to pulley mechanism 5 has a length L22, the hinge 9 from pulley mechanism 5 to the lower edge of the lower photovoltaic array 103 has a length L21, l2=l21+l22, where the L21 segment is substantially perpendicular to the ground plane.
As shown in fig. 8, the overall shape of the photovoltaic array is adjusted from a zigzag shape to a one shape based on the adjustment of the photovoltaic array in fig. 7, namely: so that the inclination angle a1 of the upper section photovoltaic array 101 and the inclination angle a2 of the lower Duan Guangfu array 103 are the same as the inclination angle a of the middle section photovoltaic array 102; the specific regulation process is as follows:
the first driving wheel 701 performs a winding action and the second driving wheel 703 performs a paying-off action, so that the whole first driving cable 3 slides to the first upright 105 side, the length from the first fixer 302 to the pulley mechanism 5 is longer than L12a, the length from the pulley mechanism 5 to the hinge 9 at the upper edge of the upper-stage photovoltaic array 101 is shorter than L11a, and l1=l11a+l12a;
the first driving wheel 801 performs a winding operation and the second driving wheel 803 performs a paying-off operation, so that the whole second driving cable 4 slides to the second upright 106 side, the length from the second fixer 402 to the pulley mechanism 5 is longer than L22a, the length from the pulley mechanism 5 to the hinge 9 at the lower edge of the lower-stage photovoltaic array 103 is shorter than L21a, and l2=l21a+l22a;
it should be noted that, during the sliding process of the cable, the direction angles of the L11 section and the L21 section may be changed due to the change of the inclination angle of the photovoltaic array.
Further, the mechanical structure matched with each driving wheel of each driving mechanism comprises: the motor 10, the limiting disc 11 and the plug-in electromagnetic valve 12, the limiting disc 11 and the driving wheel are fixedly arranged on a driving shaft 1001 of the motor 10, and a plurality of limiting holes 1101 are formed in the limiting disc 11;
in a stationary state, the pin 1201 on the plug-in solenoid valve 12 is inserted into one of the limit holes 1101 of the limit disk 11, so that the drive shaft 1001 and the drive wheel cannot rotate;
when the driving wheel needs to rotate, firstly, the motor 10 is started, the pin 1201 on the plug-in electromagnetic valve 12 is pulled out of the limiting hole 1101 of the limiting disc 11, then the motor 10 drives the driving wheel to rotate, and after rotating in place, the pin 1201 on the plug-in electromagnetic valve 12 is inserted into one limiting hole 1101 of the limiting disc 11, so that the driving shaft 1001 and the driving wheel cannot rotate.
Specifically, as shown in fig. 9, the mechanical structure associated with each driving wheel includes: a motor 10, a limiting disc 11 and a plug-in electromagnetic valve 12; the motor 10 is fixed on the supporting frame 1002, the motor 10 is connected with the driving shaft 1001, two limiting discs 11 are fixedly arranged on the driving shaft 1001, and two plug-in electromagnetic valves 12 are arranged on the supporting frame 1002 corresponding to the two limiting discs 11; the driving wheel 1003 is fixedly arranged on the driving shaft 1001 and is positioned between the two limiting plates 11;
a plurality of limiting holes 1101 are formed in the limiting disc 11, and pins 1201 on the plug-in type electromagnetic valve 12 can be inserted into the limiting holes 1101 of the limiting disc 11, so that the limiting disc 11 is locked and rotation of the driving shaft 1001 is prevented; when the pin 1201 on the plug-in solenoid valve 12 is pulled out of the stopper hole 1101 of the stopper plate 11, the motor 10 can rotate the drive shaft 1001 and the drive wheel 1003.
As shown in fig. 10, the limiting holes 1101 of the limiting plate 11 are circumferentially arranged at intervals of 10 ° so as to facilitate accurate adjustment of the winding and unwinding of the cable.
The motor 10 is a stepper motor. The stepping motor can maintain static moment in a static state after being electrified, and the driving wheel is prevented from being out of control.
The cross-sectional area of the limiting hole 1101 of the limiting disc 11 is larger than the cross-sectional area of the pin 1201 on the plug-in solenoid valve 12. When the stepper motor forms a static moment, the transverse shearing force applied to the pin 1201 is eliminated, and the insertion and the extraction are facilitated.
The application is of course not limited to the embodiments described below, but equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the application, which are intended to be included within the scope of the application as defined in the appended claims.
Claims (7)
1. The photovoltaic power station tracking and adjusting system comprises a plurality of rows of photovoltaic arrays, and each row of photovoltaic arrays is at least divided into three sections which are connected with each other, namely an upper section photovoltaic array (101), a middle section photovoltaic array (102) and a lower Duan Guangfu array (103); the installation dip angle a of the middle section photovoltaic array (102) is a fixed value and cannot be adjusted; the inclination angle a1 of the upper Duan Guangfu array (101) and the inclination angle a2 of the lower-stage photovoltaic array (103) can be respectively adjusted; the method is characterized in that: the photovoltaic power station tracking and adjusting system is composed of a plurality of groups of cable driving devices which span the upper part of the photovoltaic array; the inclination angle a1 of the upper Duan Guangfu array (101) or/and the inclination angle a2 of the lower photovoltaic array (103) are adjusted by a plurality of groups of cable driving devices;
the cable driving device comprises a first upright (105), a second upright (106), a main supporting cable (2), a first driving cable (3), a second driving cable (4), a plurality of first driven cables (301) and a plurality of second driven cables (401);
the first upright posts (105) and the second upright posts (106) are respectively arranged on two sides of the photovoltaic arrays in a plurality of rows;
a main cable tensioning mechanism (6) and two groups of driving mechanisms are arranged in the first upright (105) and the second upright (106); the two groups of driving mechanisms are a first driving mechanism (7) and a second driving mechanism (8) respectively;
the main cable tensioning mechanism (6) is used for penetrating the main supporting cable (2) through the first upright (105) and the second upright (106) and is fixed and in a tensioned state;
the first driving mechanism (7) is used for penetrating the first driving cable (3) through the first upright post (105) and the second upright post (106) and can be adjusted in a reciprocating manner;
the second driving mechanism (8) is used for penetrating the second driving cable (4) through the first upright (105) and the second upright (106) and can be adjusted in a reciprocating manner;
the main supporting cable (2) is provided with a plurality of pulley mechanisms (5), the upper ends of the pulley mechanisms (5) are fixed on the main supporting cable (2), and the lower ends of the pulley mechanisms comprise three groups of pulleys: a first pulley (501), a second pulley (502), and a third pulley (503); the concrete connection structure comprises:
first, a group of pulley mechanisms (5) are positioned above the upper edge of each upper section photovoltaic array (101), a first pulley (501) is used for being in sliding connection with a first driving cable (3), a second pulley (502) is used for being in sliding connection with a second driving cable (4), and a third pulley (503) is used for being in sliding connection with a first driven cable (301); the upper end of the first driven cable (301) is fixed on the first driving cable (3), passes through the rear lower end of the third pulley (503) and is fixedly connected with a hinge (9) at the upper edge of the upper Duan Guangfu array (101); the first driving cable (3) is adjusted in a reciprocating manner through the first driving mechanism (7), the first driven cable (301) is driven, and the upper-stage photovoltaic array (101) is driven to change the inclination angle a1;
second, another group of pulley mechanisms (5) are positioned above the lower edge of each lower section of photovoltaic array (103), a first pulley (501) is used for being in sliding connection with a first driving cable (3), a second pulley (502) is used for being in sliding connection with a second driving cable (4), and a third pulley (503) is used for being in sliding connection with a second driven cable (401); the upper end of the second driven cable (401) is fixed on the second driving cable (4), passes through the rear lower end of the third pulley (503) and is fixedly connected with a hinge (9) at the lower edge of the lower section photovoltaic array (103); the second driving cable (4) is adjusted in a reciprocating manner through the second driving mechanism (8), the second driven cable (401) is driven, and the lower-stage photovoltaic array (103) is driven to change the inclination angle a2.
2. The photovoltaic power plant tracking regulation system of claim 1 wherein: the main cable tensioning mechanism at least comprises a main cable paying-off wheel (601), a main cable tensioning wheel (602) and a main cable take-up wheel (603); the main cable paying-off wheel (601) and the main cable take-up wheel (603) are respectively fixedly connected with the first upright post (105) and the second upright post (106), and the main supporting cable (2) sequentially passes through the main cable paying-off wheel (601), the main cable tensioning wheel (602) and the main cable take-up wheel (603); the main supporting cable (2) is kept fixed and in a tensioned state by the combined action of the main cable paying-off wheel (601), the main cable tensioning wheel (602) and the main cable take-up wheel (603).
3. The photovoltaic power plant tracking regulation system of claim 1 wherein: the driving mechanism at least comprises two driving wheels, namely a first driving wheel and a second driving wheel, and the two driving wheels are fixedly connected with the first upright post (105) and the second upright post (106) respectively; the first driving cable (3) or the second driving cable (4) is wound on the two driving wheels, and the first driving cable (3) or the second driving cable (4) is in a tensioning state through the reverse movement of the two driving wheels;
the reciprocating adjustment is as follows:
when the first driving wheel performs paying-off operation and the second driving wheel performs taking-up operation, the cable main body can slide towards the second driving wheel;
when the second driving wheel performs paying-off operation and the first driving wheel performs taking-up operation, the cable main body can slide towards the first driving wheel.
4. A photovoltaic power plant tracking regulation system according to claim 3 wherein: the driving mechanism also comprises one or more tensioning wheels.
5. A photovoltaic power plant tracking regulation system according to claim 3 wherein: the mechanical structure matched with the driving wheel comprises: the motor (10), the limiting disc (11) and the plug-in electromagnetic valve (12), wherein the limiting disc (11) and the driving wheel are fixedly arranged on a driving shaft (1001) of the motor (10), and a plurality of limiting holes (1101) are formed in the limiting disc (11);
in a static state, a pin (1201) on the plug-in electromagnetic valve (12) is inserted into one limiting hole (1101) of the limiting disc (11), so that the driving shaft (1001) and the driving wheel cannot rotate;
when the driving wheel needs to rotate, firstly, the motor (10) is started, the pin (1201) on the plug-in electromagnetic valve (12) is pulled out of the limiting hole (1101) of the limiting disc (11), then the motor (10) drives the driving wheel to rotate, and after the driving wheel rotates in place, the pin (1201) on the plug-in electromagnetic valve (12) is inserted into one limiting hole (1101) of the limiting disc (11), so that the driving shaft (1001) and the driving wheel cannot rotate.
6. The photovoltaic power plant tracking regulation system of claim 5 wherein: the motor (10) is a stepping motor.
7. The photovoltaic power plant tracking regulation system of claim 5 wherein: the cross section area of the limiting hole (1101) of the limiting disc (11) is larger than the cross section area of the pin (1201) on the plug-in electromagnetic valve (12).
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201951459U (en) * | 2010-12-31 | 2011-08-31 | 李新民 | Aerial suspension cable bicycle |
| CN203800867U (en) * | 2014-03-19 | 2014-08-27 | 上海摩昆新能源科技有限公司 | Photovoltaic array bracket |
| WO2016143953A2 (en) * | 2015-03-06 | 2016-09-15 | 안승혁 | Tracking-type on-water solar generating apparatus |
| JP2019009903A (en) * | 2017-06-23 | 2019-01-17 | 株式会社サンマリオン | Solar power plant |
| CN112383262A (en) * | 2020-10-23 | 2021-02-19 | 南京酷朗电子有限公司 | Photovoltaic power station adjusting method for adjusting angle of photovoltaic panel in segmented mode |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2954266A1 (en) * | 2013-02-05 | 2015-12-16 | Helioslite | Tracking photovoltaic solar system, and methods for installing or for using such tracking photovoltaic solar system |
| WO2017112573A1 (en) * | 2015-12-21 | 2017-06-29 | Raydyne Energy, Inc. | Two-axis solar concentrator system |
-
2022
- 2022-04-26 CN CN202210439475.5A patent/CN114826124B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201951459U (en) * | 2010-12-31 | 2011-08-31 | 李新民 | Aerial suspension cable bicycle |
| CN203800867U (en) * | 2014-03-19 | 2014-08-27 | 上海摩昆新能源科技有限公司 | Photovoltaic array bracket |
| WO2016143953A2 (en) * | 2015-03-06 | 2016-09-15 | 안승혁 | Tracking-type on-water solar generating apparatus |
| JP2019009903A (en) * | 2017-06-23 | 2019-01-17 | 株式会社サンマリオン | Solar power plant |
| CN112383262A (en) * | 2020-10-23 | 2021-02-19 | 南京酷朗电子有限公司 | Photovoltaic power station adjusting method for adjusting angle of photovoltaic panel in segmented mode |
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