CN110304210B - Floating type photovoltaic power station and position adjusting method of floating platform and photovoltaic floating body square matrix thereof - Google Patents
Floating type photovoltaic power station and position adjusting method of floating platform and photovoltaic floating body square matrix thereof Download PDFInfo
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- CN110304210B CN110304210B CN201910636020.0A CN201910636020A CN110304210B CN 110304210 B CN110304210 B CN 110304210B CN 201910636020 A CN201910636020 A CN 201910636020A CN 110304210 B CN110304210 B CN 110304210B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/4453—Floating structures carrying electric power plants for converting solar energy into electric energy
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Abstract
The invention relates to a floating type photovoltaic power station which comprises a photovoltaic floating body square matrix for mounting a photovoltaic component and a floating platform for mounting an inversion boosting device, wherein the floating platform is arranged in the photovoltaic floating body square matrix, the floating platform and the photovoltaic floating body square matrix are respectively and independently moored at the water bottom through mooring cables, or the floating platform and the photovoltaic floating body square matrix are connected into a combined body through the mooring cables, and the combined body is moored at the water bottom. The floating photovoltaic power station ensures that the floating platform and the photovoltaic floating body square matrix are relatively fixed, and mutual collision between the floating platform and the photovoltaic floating body square matrix is avoided; on the other hand, the distance between two adjacent photovoltaic floating body square matrixes in the same water area can be effectively reduced, so that the water surface utilization rate is effectively improved.
Description
Technical Field
The invention relates to the technical field of overwater photovoltaic power generation, in particular to a floating type photovoltaic power station and a position adjusting method of a floating platform and a photovoltaic floating body square matrix of the floating type photovoltaic power station.
Background
The floating photovoltaic power station that matures at present is shown in fig. 1, and each floating photovoltaic power station includes a photovoltaic body square matrix 01 and corresponds the floating platform 02 that this photovoltaic body square matrix 01 set up, and floating platform 02 is used for installing contravariant boosting equipment, and the current that photovoltaic body square matrix 01 produced flows into contravariant boosting equipment and realizes contravariant and step up.
As can be seen from fig. 1, the floating platform 02 is arranged outside the photovoltaic floating body square matrix 01 and is independently moored, and the inversion boosting device on the floating platform 02 is connected with the photovoltaic floating body square matrix 01 through the current collecting lines 03 distributed in an S-shaped manner, so as to prevent the current collecting lines 03 from being pulled when the floating platform 02 and the photovoltaic floating body square matrix 01 move relatively.
Although the operation condition of the floating photovoltaic power station with the layout is good, in order to avoid collision between the floating platform and the photovoltaic floating body square matrix, a sufficient safe distance should be reserved between the floating platform and the photovoltaic floating body square matrix, and when a plurality of floating photovoltaic power stations are arranged in a water area, the distribution state of the floating photovoltaic power stations is as shown in fig. 1, and as can be seen from fig. 1, a large area for accommodating the floating platform cannot be utilized, so that the water surface utilization rate is low when the floating photovoltaic power stations adopt the layout.
Disclosure of Invention
One of the purposes of the invention is to provide a floating photovoltaic power station, so that the use stability is ensured and the water surface utilization rate can be effectively improved.
The invention also aims to provide a position adjusting method for the floating platform and the photovoltaic floating body square matrix of the floating photovoltaic power station.
In order to achieve the purpose, the floating type photovoltaic power station provided by the invention comprises a photovoltaic floating body square matrix for mounting a photovoltaic component and a floating platform for mounting an inversion boosting device, wherein the floating platform is arranged in the photovoltaic floating body square matrix, the floating platform and the photovoltaic floating body square matrix are respectively and independently moored at the water bottom through mooring cables, or the floating platform and the photovoltaic floating body square matrix are connected into a combined body through the mooring cables, and the combined body is moored at the water bottom.
Preferably, the floating platform is arranged close to the boundary of the photovoltaic floating body square matrix.
Preferably, an empty floating body is reserved in a position, close to the floating platform, of the photovoltaic floating body square matrix, and the empty floating body is used for placing a current collection circuit of the inversion boosting equipment.
Preferably, the method further comprises the following steps:
the buoy system is arranged on the photovoltaic floating body square matrix or the floating platform, and at least a current meter and a wave height meter are arranged in the buoy system;
the wind direction anemoscope is arranged on the photovoltaic floating body square matrix or the floating platform and used for measuring wind direction and wind speed;
the full-rotation propeller is arranged at the bottom of the floating platform and used for driving the floating platform to move;
the controller is used for obtaining the prejudged relative displacement between the photovoltaic floating body square matrix and the floating platform according to the flow velocity signal, the wave height signal, the wind direction signal and the wind speed signal received at the current moment, entering an adjusting period when the prejudged relative displacement reaches a preset value, and in the adjusting period, preliminarily controlling the full-rotation propeller to drive the floating platform to move according to the prejudged relative displacement so as to enable the floating platform and the photovoltaic floating body square matrix to keep consistent movement.
Preferably, the method further comprises the following steps:
the first distance meter is arranged on the photovoltaic floating body square matrix and used for measuring the real-time displacement of the photovoltaic floating body square matrix;
the second distance meter is arranged on the floating platform and used for measuring the real-time displacement of the floating platform;
the controller obtains the actual relative displacement of the photovoltaic floating body square matrix and the floating platform according to the displacement signal of the first distance meter and the displacement signal of the second distance meter, and the controller controls the full-rotation propeller to drive the floating platform to move again according to the actual relative displacement.
Preferably, each mooring line used for mooring the floating platform is provided with a tension sensor, and according to a tension signal of the tension sensor, the controller controls the full-circle-turning propeller to drive the floating platform to move for the third time, so that tension on each mooring line used for mooring the floating platform is equal, and when tension on each mooring line used for mooring the floating platform is equal, the adjustment period is ended.
Preferably, the device further comprises a deep learning module, and when the adjustment period is finished, the deep learning module records the final rotation angle and the average rotation speed of the full-rotation propeller in the adjustment period and the corresponding flow speed signal, wave height signal, wind direction signal and wind speed signal so as to be used by the controller for controlling the full-rotation propeller in the next time.
Preferably, the fully-revolving propeller is installed at the bottom of the floating platform through a telescopic mechanism, a water depth meter is further arranged in the floating system, and the controller controls the telescopic mechanism to drive the fully-revolving propeller to extend out only when the water depth measured by the water depth meter meets a preset extension condition.
Preferably, the telescopic mechanism is a piston cylinder.
The invention discloses a position adjusting method of a floating platform and a photovoltaic floating body square matrix of a floating type photovoltaic power station, which comprises the following steps:
1) acquiring current water flow speed, wave height, wind direction and wind speed;
2) obtaining the prejudged relative displacement between the photovoltaic square matrix and the floating platform according to the water flow speed, the wave height, the wind direction and the wind speed, and entering the step 3 when the prejudged relative displacement reaches a preset value;
3) and preliminarily driving the floating platform to move according to the pre-judged relative displacement so as to keep the movement of the floating platform and the photovoltaic floating body square matrix consistent.
Preferably, the method further comprises the following steps:
4) obtaining the actual relative displacement of the photovoltaic floating body square matrix and the floating platform according to the real-time displacement of the photovoltaic floating body square matrix and the real-time displacement of the floating platform, and then entering the step 5);
5) and driving the floating platform to move again according to the actual relative displacement so as to keep the floating platform consistent with the movement of the photovoltaic floating body square matrix.
Preferably, the method further comprises the following steps:
6) acquiring the tension of each mooring cable for mooring the floating platform, and then entering the step 7);
7) and driving the floating platform to move for the third time according to the pulling force value of each mooring cable so as to enable the pulling force on each mooring cable for mooring the floating platform to be equal.
Preferably, the method further comprises the following step after the step 7):
8) and (4) acquiring the total displacement amount of the floating platform driven in the step (3), the step (5) and the step (7), and recording the water flow speed, wave height, wind direction and wind speed corresponding to the total displacement amount so as to be used when the floating platform is driven to move primarily next time.
According to the floating photovoltaic power station disclosed by the invention, the floating platform is arranged in the photovoltaic floating body square matrix (namely the floating platform is embedded in the photovoltaic floating body square matrix), and the floating platform and the photovoltaic floating body square matrix are respectively and independently moored to the water bottom through the mooring cable, or the floating platform and the photovoltaic floating body square matrix are firstly connected into a combination through the mooring cable and then the combination is moored to the water bottom, so that the relative fixation of the positions of the floating platform and the photovoltaic floating body square matrix is ensured, and the mutual collision between the floating platform and the photovoltaic floating body square matrix is avoided; simultaneously this kind of overall arrangement can also make the distance between two adjacent photovoltaic body square matrixes in same piece waters effectively reduce to the surface of water utilization ratio has effectively been improved.
According to the position adjusting method of the floating platform and the photovoltaic floating body square matrix, the prejudged relative displacement between the photovoltaic square matrix and the floating platform is obtained according to the current water flow speed, wave height, wind direction and wind speed, and then the floating platform is driven to move preliminarily according to the prejudged relative displacement, so that the movement of the floating platform and the photovoltaic square matrix is kept consistent, the working stability of the inversion boosting equipment on the floating platform can be guaranteed, and the floating platform can be effectively prevented from colliding with the photovoltaic floating body square matrix.
Drawings
FIG. 1 is a schematic diagram of a plurality of floating photovoltaic power plants in the same water area in the prior art;
FIG. 2 is a schematic diagram of a plurality of floating photovoltaic power plants in the same water area according to an embodiment of the present invention;
fig. 3 is a schematic mooring diagram of a floating platform and a photovoltaic floating body matrix disclosed in an embodiment of the invention;
FIG. 4 is a schematic structural view of a newly installed floating platform anchoring base at the bottom of water;
fig. 5 is a mooring schematic diagram of a floating platform and a photovoltaic floating body matrix disclosed in another embodiment of the invention;
FIG. 6 is a schematic view of the arrangement of a first range finder on a photovoltaic floating body square matrix;
FIG. 7 is a schematic view of the arrangement of the full-revolving propeller at the bottom of the floating platform;
FIG. 8 is a schematic view of the displacement of the floating platform relative to the photovoltaic floating body matrix in one case;
fig. 9 is a schematic flow chart of a position adjustment method of the floating platform and the photovoltaic floating body square matrix.
Wherein, 1 is photovoltaic body square matrix, 2 is the floating platform, 3 is the mooring line, 4 are marginal anchor piles, 5 are floating platform anchor base, 6 are contravariant boosting equipment, 7 are the surface of water, 8 are submarine, 9 are the steel framework, 10 are first distancer, 11 are wind direction anemoscope, 12 are the second distancer, 13 are the controller, 14 are telescopic machanism, 15 are full gyration screw.
Detailed Description
One of the cores of the invention is to provide a floating photovoltaic power station, so that the use stability is ensured and the water surface utilization rate can be effectively improved.
The other core of the invention is to provide a position adjusting method for the floating platform 2 and the photovoltaic floating body square matrix 1 of the floating photovoltaic power station.
Referring to fig. 2, the floating photovoltaic power plant disclosed in the embodiment of the present invention includes a photovoltaic floating body square matrix 1 and a floating platform 2, the photovoltaic floating body square matrix 1 is used for installing a photovoltaic module to receive light energy and convert the light energy into electric energy, the floating platform 2 is used for installing an inverter boosting device 6 to convert the electric energy generated by the photovoltaic module into alternating current with voltage and frequency meeting requirements, compared with the prior art, the floating platform 2 in the floating photovoltaic power plant is arranged inside the photovoltaic floating body square matrix 1, that is, a vacant position for arranging the floating platform 2 is reserved in the photovoltaic floating body square matrix 1, the floating platform 2 is embedded inside the photovoltaic floating body square matrix 1, the floating platform 2 can be moored and fixed in two ways, one way is that the floating platform 2 and the photovoltaic square matrix are moored at the bottom independently through a mooring cable 3, and the other way is that the floating platform 2 and the photovoltaic square matrix 1 are first connected into a combined body through a mooring cable 3, the assembly is then moored to the water bottom.
Fig. 2 shows a distribution schematic diagram of a plurality of floating photovoltaic power stations in the same water area, and as seen in fig. 1, actually, one floating photovoltaic power station in fig. 2 is an original assembly of two floating photovoltaic power stations, and accordingly, two floating platforms 2 embedded into a photovoltaic floating body square matrix 1 are arranged in the floating photovoltaic power station, and of course, according to actual conditions, a person skilled in the art may also arrange only one floating platform 2 after two floating photovoltaic power stations are combined; still further, one skilled in the art may also combine more floating photovoltaic plants together.
The floating platform 2 and the photovoltaic floating body square matrix 1 are independently moored at the water bottom through mooring ropes 3, or the floating platform 2 and the photovoltaic floating body square matrix 1 are firstly connected into a combined body through the mooring ropes 3, and then the combined body is moored at the water bottom, so that the relative fixation of the positions of the floating platform 2 and the photovoltaic floating body square matrix 1 is ensured, and the mutual collision between the floating platform 2 and the photovoltaic floating body square matrix 1 is avoided; meanwhile, as is obvious from fig. 2, the floating platform 2 is embedded into the photovoltaic floating body square matrix 1, so that the distance between two adjacent photovoltaic floating body square matrices 1 in the same water area can be effectively reduced by the arrangement, and the water surface utilization rate is effectively improved.
In view of convenience in operation and maintenance, the floating platform 2 in the embodiment of the present invention is preferably arranged close to the boundary position of the photovoltaic floating body square matrix 1, as shown in fig. 2 to 5, and two specific mooring modes of the floating platform 2 are explained in detail as follows:
please refer to fig. 3 first, the floating platform 2 and the photovoltaic floating body square matrix 1 shown in fig. 3 are moored separately, the floating platform 2 is rectangular or substantially rectangular, 3-5 mooring lines 3 are arranged on each side of the floating platform 2, because the photovoltaic floating body square matrix 1 needs to be moored, a circle of edge anchor piles 4 for mooring the photovoltaic floating body square matrix 1 are arranged on the periphery of the photovoltaic floating body square matrix 1, and the floating platform 2 is arranged close to the boundary position of the photovoltaic floating body square matrix 1, so that the mooring on one side of the outermost side of the floating platform 2 and the photovoltaic floating body square matrix 1 can share a part of the edge anchor piles 4; the existing anchor piles are not arranged in the photovoltaic floating body square matrix 1, so that the corresponding floating platform anchoring base 5 needs to be arranged underwater to moor the rest positions of the floating platform 2, the distribution positions of the floating platform anchoring bases 5 in overlooking are shown in fig. 3, the arrangement schematic diagram of the floating platform anchoring bases 5 under water is shown in fig. 4, the anchor piles are driven below a mud surface to form the floating platform anchoring bases 5, and therefore the mooring force required by the floating platform 2 is provided.
Then, referring to fig. 5, the floating platform 2 and the photovoltaic floating body square matrix 1 shown in fig. 5 are moored to be a combined body, the floating platform 2 is rectangular or substantially rectangular, 3-5 mooring cables 3 are arranged on each side of the floating platform 2, and the mooring on one side of the outermost side of the floating platform 2 and the photovoltaic floating body square matrix 1 can share a part of edge anchor piles 4; install steel framework 9 on the body in photovoltaic body square matrix 1 to improve the tensile ability of body, all the other each sides of floating platform 2 moor on above-mentioned steel framework 9 through mooring line 3.
In order to facilitate arrangement of a current collection line between the photovoltaic module and the inversion boosting device 6, an empty floating body can be reserved at a position, close to the floating platform 2, of the photovoltaic floating body square matrix 1 according to needs, the empty floating body is a floating body without the photovoltaic module, one or more rows of the empty floating body can be reserved according to actual needs, and the current collection line can be arranged.
It should be noted that, the floating platform 2 is generally made of a steel structure or a concrete structure, and has a large weight, and the weight of a single steel structure floating platform 2 with 10m × 5m exceeds 20 tons, and the weight of the inverter boosting device 6 also exceeds 20 tons, so the total weight of the floating platform 2 is nearly 50 tons, compared with the photovoltaic floating body square matrix 1 formed by blow molding, because the weight difference between the floating type square matrix and the floating platform 2 is too large, the floating type square matrix and the floating platform 2 do not move in unison, which may cause the floating platform 2 to roll too much, and the inverter boosting device 6 cannot work normally.
Therefore, the floating photovoltaic power station disclosed in the embodiment is further optimized, the floating photovoltaic power station disclosed in the embodiment further includes a buoy system, a wind direction anemoscope 11, a full-circle-rotating propeller 15 and a controller 13, the buoy system is disposed near the photovoltaic square matrix or the floating platform 2, the buoy system is at least equipped with a current meter and a wave height meter so as to measure the current speed and the wave height of the water body, the wind direction anemoscope 11 is disposed on the photovoltaic floating body square matrix 1 or the floating platform 2 and is used for measuring the wind direction and the wind speed, the full-circle-rotating propeller 15 is disposed at the bottom of the floating platform 2, the full-circle-rotating propeller 15 is used for driving the floating platform 2 to move, the controller 13 obtains the predetermined relative displacement between the photovoltaic square matrix 1 and the floating platform 2 according to the current received current speed signal, wave height signal, wind direction signal and wind speed signal, and enters the adjustment period when the predetermined relative displacement reaches a predetermined value (such as 2m), in the adjusting period, the controller 13 preliminarily controls the full-rotation propeller 15 to drive the floating platform 2 to move according to the pre-judged relative displacement so as to enable the floating platform 2 and the photovoltaic floating body square matrix 1 to have the relative displacement as less as possible.
Under the general condition, the wind direction is consistent with the direction of water flow and wave flower, so the moving direction of water flow and wave flower can be obtained after the wind direction is measured, the controller 13 can adopt various hydrodynamic software (such as ANSYS AQWA) to realize the prejudgment of the relative displacement between the photovoltaic floating body square matrix 1 and the floating platform 2, and the prejudgment relative displacement between the photovoltaic floating body square matrix 1 and the floating platform 2 can be obtained by operating the hydrodynamic software after the flow speed signal, the wave height signal, the wind direction signal and the wind speed signal are input.
The full-rotation propeller 15 is adjusted to a proper angle and a proper rotating speed according to the control refrigeration generated by the controller 13, and pushes the floating platform 2 to move, so that the floating platform 2 and the photovoltaic floating body square matrix 1 keep consistent in movement.
Because the predicted relative displacement is obtained through analysis and calculation of hydrodynamic software, and a deviation may exist between the predicted relative displacement and an actual value, for this reason, the floating photovoltaic power station disclosed in this embodiment further includes a first distance meter 10 and a second distance meter 12, the first distance meter 10 is disposed close to the photovoltaic floating body square matrix 1 or directly disposed on the photovoltaic floating body square matrix 1, and preferably, the first distance meter 10 is fixedly disposed on the edge anchor pile 4 at one corner position of the photovoltaic floating body square matrix 1, as shown in fig. 6; first distancer 10 is used for measuring the real-time displacement of photovoltaic hoop body square matrix, and second distancer 12 sets up on floating platform 2, and its effect lies in measuring the real-time displacement of floating platform 2, and controller 13 obtains the actual relative displacement of photovoltaic body square matrix 1 and floating platform 2 according to the displacement signal of first distancer 10 and the displacement signal of second distancer 12, then controller 13 controls full gyration screw 15 again according to this actual relative displacement and drives floating platform 2 and move.
For example, the displacement of one corner of the photovoltaic floating body square matrix 1 is P (x)p，Yp) The displacement of a corner corresponding to the corner of the floating platform 2 and the photovoltaic floating body square matrix 1 is Q (x)q，Yq) And the actual relative displacement D (X) of the photovoltaic floating body square matrix 1 and the floating platform 2 can be obtained by taking the difference of the two displacementsd，Yd)，Assuming that the rotation angle of the fully-revolving propeller 15 after the relative displacement is predicted is alpha, the controller 13 performs secondary adjustment of the rotation angle of the fully-revolving propeller 15 on the basis of the actual relative displacement requirement, and the adjusted rotation angle is the rotation angle alpha plus delta alpha of the fully-revolving propeller 151Of course, the rotational speed may also be adjusted.
As will be understood in conjunction with fig. 8, the dashed line in fig. 8 represents the floating platform 2 after displacement, and it is assumed that the actual relative displacement between one corner of the photovoltaic floating body square matrix 1 and the corresponding corner of the floating platform 2 is D (X)d，Yd) Then, it can be found that the distance that the floating platform 2 needs to be adjusted to move is:
if the rotation angle of the fully-revolving propeller 15 is defined to be 0 ° when the rotation axis of the blade surface of the fully-revolving propeller 15 is perpendicular to the short side of the left side of the floating platform 2 in fig. 8, the rotation angle of the fully-revolving propeller 15 should be adjusted to be 180 ° -actan (X)d/Yd) The movement of the floating platform 2 and the movement of the photovoltaic floating body square matrix 1 can be kept consistent.
The motion consistency of the floating platform 2 and the photovoltaic floating body square matrix 1 can be further improved by combining with actual relative displacement.
In order to further optimize the solution, in this embodiment, a tension sensor is further disposed on each mooring line 3 for mooring the floating platform 2, and the controller 13 controls the full-circle propeller 15 to drive the floating platform 2 to move for the third time according to a tension signal of the tension sensor, so that the tension on each mooring line 3 for mooring the floating platform 2 is equal, and when the tension on each mooring line 3 for mooring the floating platform 2 is equal, the adjustment period is over.
The tension sensor can adopt an optical fiber tension sensor, and since the number of the mooring cables 3 used for mooring the floating platform 2 is determined, the direction of each mooring cable 3 is determined, and when the tension of one or more mooring cables 3 is large, the third adjustment can be carried out by adjusting the angle of the full-circle-turning propeller 15. The third adjustment is performed to the rotation angle α + Δ α of the full-rotation propeller 151+△α2Of course, the rotation speed may be furtherAnd (6) adjusting the rows.
In addition, a deep learning module can be further arranged in the floating photovoltaic power station, when the adjustment period is finished, the deep learning module records the final rotation angle and the average rotation speed of the full-rotation propeller 15 in the adjustment period and the flow speed signal, the wave height signal, the wind direction signal and the wind speed signal corresponding to the final rotation angle and the average rotation speed, and the data can be used by the controller 13 for preliminarily controlling the full-rotation propeller 15 next time, so that the whole floating photovoltaic power station has a self-learning function in the adjustment process, and the reaction speed and the accuracy in the next time of adjusting the position of the floating platform 2 are improved.
Referring to fig. 7, the fully-revolving propeller 15 is specifically installed at the bottom of the floating platform 2 through the telescopic mechanism 14, a water depth meter is further arranged in the floating system, when the water depth measured by the water depth meter meets a preset condition, the controller 13 controls the telescopic mechanism 14 to drive the fully-revolving propeller 15 to extend out, otherwise, the controller 13 controls the telescopic mechanism 14 to keep a retraction state, which can effectively avoid damage to the fully-revolving propeller 15 when the water depth is insufficient.
In the above embodiment, the preset conditions are: the water depth is greater than the sum of the draft of the floating platform 2 and the length of the full-circle-rotating propeller 15 (including the telescopic mechanism 14).
The specific implementation form of the telescopic mechanism 14 is not limited to one, and for example, a piston cylinder represented by an oil cylinder and an air cylinder, a lead screw slider mechanism, or the like may be used as the telescopic mechanism 14.
The embodiment of the invention also discloses a position adjusting method of the floating platform 2 and the photovoltaic floating body square matrix 1 of the floating photovoltaic power station, which comprises the following steps:
1) acquiring current water flow speed, wave height, wind direction and wind speed;
2) obtaining the pre-judged relative displacement between the photovoltaic square matrix and the floating platform 2 according to the water flow speed, the wave height, the wind direction and the wind speed, and entering the step 3 when the pre-judged relative displacement reaches a preset value;
3) and preliminarily driving the floating platform 2 to move according to the predetermined relative displacement so as to keep the movement of the floating platform 2 consistent with that of the photovoltaic floating body square matrix 1.
The same terms in the adjustment method as those in the floating photovoltaic power station have the same meanings, the adjustment method obtains the pre-judged relative displacement between the photovoltaic square matrix and the floating platform 2 according to the current water flow speed, wave height, wind direction and wind speed, and then drives the floating platform 2 to move preliminarily according to the pre-judged relative displacement so as to keep the motion of the floating platform 2 and the motion of the photovoltaic square matrix consistent, so that on one hand, the working stability of the inversion boosting equipment 6 on the floating platform 2 can be ensured, on the other hand, the collision between the floating platform 2 and the photovoltaic floating body square matrix 1 can be effectively avoided, and the mooring cable 3 for mooring the floating platform 2 is protected.
In another embodiment, the adjusting method further comprises, after step 3), the steps of:
4) obtaining the actual relative displacement of the photovoltaic floating body square matrix 1 and the floating platform 2 according to the real-time displacement of the photovoltaic floating body square matrix 1 and the real-time displacement of the floating platform 2, and then entering the step 5);
5) and driving the floating platform 2 to move again according to the actual relative displacement so as to keep the motion of the floating platform 2 consistent with that of the photovoltaic floating body square matrix 1.
The motion consistency of the floating platform 2 and the photovoltaic floating body square matrix 1 can be further improved by combining with actual relative displacement.
In order to control the movement of the floating platform 2 more precisely, the present invention also provides an embodiment, in which step 5) is followed by the steps of:
6) acquiring the tension of each mooring line 3 for mooring the floating platform 2, and then entering step 7);
7) the floating platform 2 is driven for the third time to move according to the pulling force value of each mooring line 3, so that the pulling force on each mooring line 3 for mooring the floating platform 2 is equal.
After the pulling force of the mooring cable 3 is detected, the situation that the mooring cable 3 is pulled off due to improper position adjustment of the floating platform 2 can be effectively prevented.
And adding a step 8) after the step 7) to obtain the total displacement of the driving floating platform 2 in the step 3), the step 5) and the step 7), and recording the water velocity, wave height, wind direction and wind speed corresponding to the total displacement for the next time of primarily driving the floating platform 2 to move.
It is understood in connection with fig. 9 that the total displacement of the driving floating platform 2 and the corresponding water flow speed, wave height, wind direction and wind speed are stored in the database and used when the preliminary driving floating platform 2 moves next time, so that the system has the deep learning capability, and when the conditions identical or approximately identical to the water flow speed, wave height, wind direction and wind speed are met, the data can be rapidly retrieved to preliminarily drive the floating platform 2 to move, so that the response speed and accuracy of the adjusting process of the floating platform 2 are improved.
The floating photovoltaic power station, the floating platform thereof and the position adjusting method of the photovoltaic floating body square matrix are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (11)
1. A floating type photovoltaic power station comprises a photovoltaic floating body square matrix (1) for mounting a photovoltaic component and a floating platform (2) for mounting an inversion boosting device (6), and is characterized in that a vacant position for arranging the floating platform (2) is reserved in the photovoltaic floating body square matrix (1), the floating platform (2) is arranged in the photovoltaic floating body square matrix (1), the floating platform (2) and the photovoltaic floating body square matrix (1) are respectively and independently moored at the bottom of the water through mooring ropes (3), or the floating platform (2) and the photovoltaic floating body square matrix (1) are connected into a combined body through the mooring ropes (3), and the combined body is moored at the bottom of the water;
float formula photovoltaic power plant still includes:
the buoy system is arranged close to the photovoltaic floating body square matrix (1) or the floating platform (2), and is at least provided with a current meter and a wave height meter;
the wind direction anemoscope (11) is arranged on the photovoltaic floating body square matrix (1) or the floating platform (2), and the wind direction anemoscope (11) is used for measuring wind direction and wind speed;
the full-rotation propeller (15) is arranged at the bottom of the floating platform (2), and the full-rotation propeller (15) is used for driving the floating platform (2) to move.
2. Floating photovoltaic power plant according to claim 1, characterized in that the floating platform (2) is arranged close to the border of the photovoltaic floating body matrix (1).
3. The floating photovoltaic power plant according to claim 1, characterized in that an empty floating body is reserved in the photovoltaic floating body square matrix (1) near the floating platform (2), and the empty floating body is used for placing a current collection line of the inversion and voltage boosting equipment (6).
4. A floating photovoltaic power plant according to any one of claims 1-3 further comprising:
the controller (13) is used for obtaining a pre-judging relative displacement between the photovoltaic floating body square matrix (1) and the floating platform (2) according to a flow velocity signal, a wave height signal, a wind direction signal and a wind speed signal received at the current moment, entering an adjusting period when the pre-judging relative displacement reaches a preset value, and in the adjusting period, the controller (13) preliminarily controls the full-rotation propeller (15) to drive the floating platform (2) to move according to the pre-judging relative displacement so that the motions of the floating platform (2) and the photovoltaic floating body square matrix (1) are kept consistent.
5. The floating photovoltaic power plant of claim 4 further comprising:
the first distance meter (10) is arranged on the photovoltaic floating body square matrix (1), and the first distance meter (10) is used for measuring the real-time displacement of the photovoltaic floating body square matrix (1);
a second distance meter (12) arranged on the floating platform (2), wherein the second distance meter (12) is used for measuring the real-time displacement of the floating platform (2);
the controller (13) obtains the actual relative displacement of the photovoltaic floating body square matrix (1) and the floating platform (2) according to the displacement signal of the first distance meter (10) and the displacement signal of the second distance meter (12), and the controller (13) controls the full-rotation propeller (15) to drive the floating platform (2) to move again according to the actual relative displacement.
6. Floating photovoltaic power plant according to claim 5, characterized in that each of the mooring lines (3) used for mooring the floating platform (2) is provided with a tension sensor, and the controller (13) controls the full-swing propeller (15) to drive the floating platform (2) to move for the third time according to the tension signal of the tension sensor, so that the tension on each of the mooring lines (3) used for mooring the floating platform (2) is equal, and the adjustment period is over when the tension on each of the mooring lines (3) used for mooring the floating platform (2) is equal.
7. The floating photovoltaic power plant according to claim 6, characterized by further comprising a deep learning module which records the final rotation angle, the average rotation speed of the full-swing propeller (15) and the corresponding flow speed signal, wave height signal, wind direction signal and wind speed signal during the adjustment period when the adjustment period is over, for use by the controller (13) in the next preliminary control of the full-swing propeller (15).
8. The floating photovoltaic power plant according to claim 4, characterized in that the fully-revolving propellers (15) are mounted at the bottom of the floating platform (2) through telescopic mechanisms (14), a bathymeter is further arranged in the floating system, and the controller (13) controls the telescopic mechanisms (14) to drive the fully-revolving propellers (15) to extend only when the water depth measured by the bathymeter meets preset extension conditions.
9. Method for adjusting the position of a floating platform (2) and a photovoltaic float matrix (1) of a floating photovoltaic power plant according to any of claims 1 to 8, characterized in that it comprises the steps of:
1) acquiring current water flow speed, wave height, wind direction and wind speed;
2) obtaining the prejudged relative displacement between the photovoltaic square matrix and the floating platform (2) according to the water flow speed, the wave height, the wind direction and the wind speed, and entering a step 3 when the prejudged relative displacement reaches a preset value;
3) and preliminarily driving the floating platform (2) to move according to the predetermined relative displacement so as to keep the motion of the floating platform (2) consistent with that of the photovoltaic floating body square matrix (1).
10. The position adjustment method according to claim 9, characterized by further comprising the steps of:
4) obtaining the actual relative displacement of the photovoltaic floating body square matrix (1) and the floating platform (2) according to the real-time displacement of the photovoltaic floating body square matrix (1) and the real-time displacement of the floating platform (2), and then entering the step 5);
5) and driving the floating platform (2) to move again according to the actual relative displacement so as to keep the motion of the floating platform (2) consistent with that of the photovoltaic floating body square matrix (1).
11. The position adjustment method according to claim 10, characterized by further comprising the steps of:
6) acquiring the pulling force of each mooring line (3) for mooring the floating platform (2), and then entering step 7);
7) and driving the floating platform (2) to move for the third time according to the pulling force value of each mooring cable (3) so as to enable the pulling force on each mooring cable (3) for mooring the floating platform (2) to be equal.
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| CN113120161A (en) * | 2021-04-28 | 2021-07-16 | 中国三峡新能源(集团)股份有限公司 | Anchoring system of floating photovoltaic power generation platform and construction method thereof |
| CN113320656B (en) * | 2021-07-02 | 2022-09-13 | 阳光新能源开发股份有限公司 | Floating type photovoltaic power station safety monitoring method and system |
| CN118786073A (en) | 2022-02-15 | 2024-10-15 | 海洋阳光公司 | Mooring of a floating photovoltaic power plant |
| CN115748633A (en) * | 2022-11-18 | 2023-03-07 | 中电建海上风电工程有限公司 | Construction method for hoisting by combining multiple fans with mobile wharf |
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