A buoyancy support platform for water-based photovoltaic power generation

Abstract

The present invention relates to the technical field of position control, and specifically to a buoyancy support platform for photovoltaic power generation on water, which obtains light intensity data at each moment at a designated position on a photovoltaic support panel; obtains the light change value at each moment at each designated position according to the difference in light intensity data at each moment and at its adjacent moment; combines the designated positions in pairs according to designated rules, and obtains adjustment parameters of two designated positions in each combination according to the distribution of all light change values ​​in each combination; and regulates the position of a photovoltaic panel based on the adjustment parameters. The present invention reduces the influence of water surface fluctuations on the adjustment parameters by obtaining the adjustment parameters of two designated positions in the same combination, and then accurately regulates the position of the photovoltaic panel with the adjustment parameters, thereby ensuring that the power generation efficiency of the photovoltaic panel is maintained at the best.

Description

Technical Field

[0001] The present invention relates to the technical field of position control, and in particular to a supporting buoyancy platform for water photovoltaic power generation. Background Art

[0002] The floating platform for photovoltaic power generation on water is a floating structure specially designed to support photovoltaic panels and install them on the water surface. Through the principle of buoyancy, the photovoltaic panels can float stably on the water surface, so that the photovoltaic panels can receive solar energy for power generation, reducing the occupation of land surface resources. At the same time, water is used to quickly dissipate the heat of the components of the photovoltaic panels during the power generation process, thereby improving the power generation efficiency of the photovoltaic panels. During the power generation process, the power generation efficiency of the photovoltaic panels is related to the direct angle of the sun. In order to improve the power generation efficiency of the photovoltaic panels, the angle of the photovoltaic panels needs to be adjusted.

[0003] The photovoltaic panels in the existing floating platforms for supporting photovoltaic power generation on water have the function of automatically adjusting their positions according to changes in light intensity data. However, in actual situations, water surface fluctuations will affect the size of the light intensity data, resulting in inaccurate automatic adjustment of the positions of the photovoltaic panels, which in turn affects the power generation efficiency of the photovoltaic panels and reduces the full utilization rate of energy resources. Summary of the invention

[0004] In order to solve the technical problem that water surface fluctuations affect the size of light intensity data, resulting in inaccurate automatic adjustment of the position of photovoltaic panels, the present invention provides a buoyancy support platform for water photovoltaic power generation, and the technical solution adopted is as follows:

[0005] A supporting buoyancy platform for photovoltaic power generation on water, comprising a supporting buoyancy mechanism, wherein the supporting buoyancy mechanism envelops a photovoltaic supporting plate and a photovoltaic panel, wherein the photovoltaic supporting plate is used to support the photovoltaic panel, and the supporting buoyancy platform for photovoltaic power generation on water also comprises a data acquisition module and a data analysis control module, wherein a signal output end of the data acquisition module is connected to the data analysis control module;

[0006] The data acquisition module is used to obtain light intensity data at a specified position on the photovoltaic support plate at each moment in the current time period;

[0007] The data analysis control module is used to obtain the light change value of each designated position at each moment according to the received light intensity data difference between each designated position at each moment and its adjacent moments;

[0008] Combine the specified positions in pairs according to the specified rules, and obtain the overall light intensity data of each specified position based on the distribution of all light change values ​​in each combination;

[0009] Obtain adjustment parameters of the two specified positions in each combination according to the difference of the overall light intensity data between the two specified positions in each combination;

[0010] The position of the photovoltaic panel is regulated based on the adjustment parameters.

[0011] Furthermore, the method for obtaining the light change value is:

[0012] For any designated position at any time, the difference between the light intensity data at the previous adjacent time of the designated position at that time and the light intensity data at the designated position at that time is obtained as the light change value of the designated position at that time.

[0013] Furthermore, the designation rule is: the front-to-back symmetrical designated positions are one combination, and the left-to-right symmetrical designated positions are one combination.

[0014] Furthermore, the method for acquiring the overall light intensity data is:

[0015] According to the distribution of the absolute values ​​of all light change values ​​in each combination, the reference light change value in each combination is screened out;

[0016] Determine the target time at each designated position based on the reference light change value;

[0017] According to the light intensity data at the target time, the overall light intensity data of each specified location is obtained.

[0018] Furthermore, the method for obtaining the reference light change value is:

[0019] For any combination, the absolute values ​​of all light change values ​​in the combination are clustered using an iterative self-organizing clustering algorithm to obtain a reference category;

[0020] According to the fluctuation of the absolute value of the light change value in each reference category, the reliability value of each reference category is obtained;

[0021] The target category of the combination is screened out based on the reliability value, and the light change value in the target category is used as the reference light change value of the combination.

[0022] Furthermore, the calculation formula of the reliability value is:

[0023] ; In the formula, is the reliability value of the kth reference category; is a first preset constant, not less than 1; is the total number of light variation values ​​in the kth reference category; is the mth light change value in the kth reference category; is the mean of the absolute values ​​of all light change values ​​in the kth reference category; is the absolute value function; norm is the normalization function.

[0024] Furthermore, the method for obtaining the target category is:

[0025] For any combination, obtain the reliability value of each reference category of the combination;

[0026] The reference category corresponding to the maximum reliability value is used as the target category of the combination.

[0027] Furthermore, the method for obtaining the target time is:

[0028] The time corresponding to the reference light change value at the corresponding designated position is used as the reference time;

[0029] For any designated position, the reference light change values ​​of all reference moments of the designated position are compared with the preset change value threshold, and the reference light change values ​​greater than or equal to the preset change value threshold are taken as the first light change values;

[0030] The reference light change values ​​that are smaller than the preset change value threshold are all used as the second light change values;

[0031] Compare the first light change value with the second light change value, and use the reference light change value corresponding to the maximum value as the target light change value;

[0032] The reference time corresponding to the target light change value is used as the target time of the specified position.

[0033] Furthermore, the method for acquiring the overall light intensity data is:

[0034] For any specified location, the average of the light intensity data of the specified location at all target times is used as the overall light intensity data of the specified location.

[0035] Furthermore, the method in which the data control module is used to adjust the position of the photovoltaic panel according to the received adjustment parameters is:

[0036] The data analysis control module determines the current and voltage of the motor connected to the transmission shaft according to the size of the adjustment parameter, controls the rotation direction and number of turns of the transmission shaft, adjusts the extension and retraction amount of the connecting rod corresponding to the specified position, and regulates the position of the photovoltaic panel until the adjustment parameter is equal to the preset adjustment parameter threshold.

[0037] The present invention has the following beneficial effects:

[0038] According to the difference in light intensity data at each designated position at each moment and its adjacent moments, the light change value at each designated position at each moment is obtained, which accurately reflects the change in light intensity data at each designated position at each moment, which is conducive to analyzing the impact of water surface fluctuations on light intensity data and preparing for accurate regulation of the position of photovoltaic panels; then the designated positions are combined in pairs according to the specified rules, which is conducive to synchronous adjustment of the positions of photovoltaic panels; in order to reduce the impact of water surface fluctuations, the overall light intensity data of each designated position is further obtained according to the distribution of all light change values ​​in each combination, which accurately reflects the distribution of normal light intensity data at each designated position; then according to the difference in overall light intensity data between two designated positions in each combination, the adjustment parameters of the two designated positions in each combination are accurately obtained, which accurately reflects the distribution difference of light intensity data between two designated positions in the same combination. Therefore, the position of the photovoltaic panel is accurately regulated based on the adjustment parameters to ensure that the sunlight directly hits the entire photovoltaic panel, so that the power generation efficiency of the photovoltaic panel is maintained at the best, and energy is fully utilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 A schematic diagram of the overall structure of a buoyancy support platform for water photovoltaic power generation provided by the present invention;

[0041] Figure 2 A schematic diagram of a support and adjustment structure of a buoyancy platform for supporting photovoltaic power generation on water provided by the present invention;

[0042] Figure 3 A schematic diagram of the internal structure of a regulating body supporting a buoyancy platform for water photovoltaic power generation provided by the present invention;

[0043] Figure 4 A flowchart of specific implementation steps of a data acquisition module and a data analysis control module in a supporting buoyancy platform for water photovoltaic power generation provided by the present invention;

[0044] Figure 5 A flow chart of a method for acquiring overall light intensity data provided by the present invention;

[0045] Figure 6 A flow chart of a method for obtaining a reference light change value provided by the present invention;

[0046] The accompanying drawings are marked as follows: 1, 2, 3, 5 are light sensors, 4 is a photovoltaic panel, 6 is a buoyancy platform, 7 is a photovoltaic support panel, 8, 9, 19, 20 are ropes, 10 is an adjustment body, 11 is a left connecting rod, 12 is a left connecting ring, 13 is a rear connecting rod, 14 is a rear connecting ring, 15 is a front connecting rod, 16 is a front connecting ring, 17 is a right connecting rod, 18 is a right connecting ring, 21, 24 are transmission gears, 22, 28 are hollow grooves, 23 is a transmission shaft, 25, 26 are transmission teeth, and 27 is a data analysis and control module. DETAILED DESCRIPTION

[0047] This embodiment provides a supporting buoyancy platform for water photovoltaic power generation, including a supporting buoyancy mechanism. The overall structural diagram of the supporting buoyancy mechanism is shown in FIG. Figure 1 As shown, in Figure 1 The light sensor 1, the light sensor 2, the light sensor 3, the light sensor 5, the photovoltaic panel 4, the buoyancy platform 6 and the photovoltaic support panel 7 are included; the support adjustment structure diagram of the supporting buoyancy mechanism is as shown in Figure 2 As shown, in Figure 2 The structure includes rope 8, rope 9, rope 19, rope 20, adjusting body 10, left connecting rod 11, left connecting ring 12, rear connecting rod 13, rear connecting ring 14, front connecting rod 15, front connecting ring 16, right connecting rod 17, and right connecting ring 18; the schematic diagram of the internal structure of the adjusting body supporting the buoyancy mechanism is as shown in FIG. Figure 3 As stated in Figure 3 The device includes a transmission gear 21, a hollow slot 22, a transmission shaft 23, a transmission gear 24, a transmission tooth 25, a transmission tooth 26, a data analysis and control module 27 and a hollow slot 28.

[0048] The light intensity data of the position at each moment is obtained through light sensor 1, light sensor 2, light sensor 3, and light sensor 5; the solar energy is converted into electrical energy through photovoltaic panel 4; the buoyancy is generated through buoyancy platform 6, so that the buoyancy platform 6 and the structure on the buoyancy platform 6 float on the water surface, wherein the four corners of the buoyancy platform 6 are respectively provided with fixed ropes for fixing the buoyancy platform, and rope 8, rope 9, rope 19 and rope 20 are all fixed ropes, so that the buoyancy platform is located above the water surface at a fixed position, that is, the position of the buoyancy platform for supporting photovoltaic power generation on water is fixed; the regulating body 10 is directly connected to the buoyancy platform 6, and the regulating body 10 is provided with a left connecting rod 11, a rear connecting rod 13, a front connecting rod 15 and a right connecting rod 17 that can be flexibly extended and retracted, wherein the left connecting rod 11 is used to control the change of the position of the light sensor 5, the rear connecting rod 13 is used to control the change of the position of the light sensor 1, and the front connecting rod 15 is used to control the change of the position of the light sensor 3 The right connecting rod 17 is used to control the change of the position of the light sensor 2; there is a connecting ring (not shown) on the photovoltaic support plate 7 that matches the connecting ring on each connecting rod, and screws are respectively passed through the photovoltaic support plate 7 and the connecting ring on each connecting rod to match the connecting ring, so that the left connecting rod 11, the rear connecting rod 13, the front connecting rod 15 and the right connecting rod 17 are all connected to the photovoltaic support plate 7; the control center for adjusting the orientation of the photovoltaic panel is in the adjustment body 10, and the data analysis control module 27 inside the adjustment body 10 is used to control the current and voltage of the motor (not shown) connected to the transmission shaft 23, as well as the rotation direction of the transmission shaft 23, and then determine the rotation direction and number of turns of the transmission gear 24, and through the interaction between the transmission gear 24 and the transmission teeth 25 and 26, the telescopic amount of the left connecting rod 11 in the hollow groove 28 and the telescopic amount of the right connecting rod 17 in the hollow groove 22 are controlled; similarly, the transmission gear 21 is used to control the telescopic amount of the rear connecting rod 13 and the front connecting rod 15. By extending and retracting the left connecting rod 11, the rear connecting rod 13, the front connecting rod 15 and the right connecting rod 17, the orientation of the photovoltaic support panel 7 is changed, that is, the orientation of the photovoltaic panel 4 is changed. It should be noted that the specific component functions can refer to the content disclosed in the application number 202111148886.0 and the invention name "A buoyant support platform for water photovoltaic power generation".

[0049] The supporting buoyancy platform for photovoltaic power generation on water also includes a data acquisition module and a data analysis control module. The data acquisition module is used to obtain the light intensity data at each moment of the position of light sensor 1, light sensor 2, light sensor 3, and light sensor 5, wherein light sensor 1, light sensor 2, light sensor 3, and light sensor 5 are respectively located at four designated positions of the fixed photovoltaic panel, and the four designated positions correspond to the center positions of the four sides of the photovoltaic panel, respectively. Therefore, light sensor 3 is symmetrical with the designated position of light sensor 1, and light sensor 5 is symmetrical with the designated position of light sensor 2. In the existing method, the position of the photovoltaic panel is adjusted in real time according to the light intensity data at the designated position, ensuring that the light intensity data at the designated positions of left-right symmetry and front-back symmetry remain consistent, so that the power generation efficiency of the photovoltaic panel continues to maintain the best. However, in actual situations, there are fluctuations on the water surface, which easily lead to deviations in the light intensity data obtained by the light sensor, and then lead to the inability to accurately adjust the orientation position of the photovoltaic panel according to the light intensity data, which easily lead to deviations in the orientation position of the photovoltaic panel, thereby reducing the power generation efficiency of the photovoltaic panel. Therefore, the data analysis control module is used to analyze the received light intensity data, obtain the adjustment parameters between the designated positions of left-right symmetry and front-back symmetry, and then accurately control the position of the photovoltaic panel based on the adjustment parameters, so that the power generation efficiency of the photovoltaic panel continues to remain optimal.

[0050] The data acquisition module is connected to the signal input terminal of the data analysis and control module. The two can be connected by wire through a data transmission line, or wirelessly through wireless communication methods such as Bluetooth and WiFi. In addition, the data acquisition module and the data analysis and control module can also be integrated to form a device that integrates data acquisition and analysis and control functions.

[0051] In this embodiment, a flowchart of the specific implementation steps of the data acquisition module and the data analysis control module in a buoyant platform for supporting photovoltaic power generation on water is as follows: Figure 4 As shown, this may include:

[0052] S1: Obtain the light intensity data of a specified position on the photovoltaic support panel at each moment in the current time period.

[0053] Specifically, in order to accurately adjust the orientation of the photovoltaic panel at the current moment, this embodiment obtains the light intensity data at each moment in each designated position within the current time period. Taking into account that the intensity of sunlight varies greatly within a day, in order to reduce the impact of changes in the light intensity data itself, the maximum duration of the current time period is limited to 1 hour and the sun must be present within the current time period. This embodiment sets the current time period to 10 minutes. The implementer can set the size of the current time period according to actual conditions, which is not limited here. Among them, the end moment of the current time period must be the current moment. It should be noted that the designated positions on the photovoltaic support plate are the positions of light sensor 1, light sensor 2, light sensor 3 and light sensor 5.

[0054] S2: Obtain the light change value of each specified position at each moment according to the difference in light intensity data between each specified position at each moment and its adjacent moments.

[0055] Specifically, since the buoyancy platform supporting water photovoltaic power generation floats on the water surface, the fluctuation of the water surface will cause the floating platform to tilt and move, thereby changing the orientation of the photovoltaic panel, thereby affecting the accuracy of the light intensity data collected by the light sensor, resulting in inaccurate rotation and adjustment of the photovoltaic panel relative to the direct direction of the sun. Considering that under normal circumstances not affected by the fluctuation of the water surface, the change of the light intensity data of each designated position in the current time period can be defaulted to a straight line tending to the horizontal, that is, the more equal the light intensity data between two adjacent moments of each designated position or the more equal the difference in light intensity data between two adjacent moments. In order to accurately screen out normal light intensity data that is not affected by the fluctuation of the water surface, therefore, this embodiment first obtains the light change value of each designated position at each moment according to the difference in light intensity data at each designated position at each moment and its adjacent moments, and determines the change of light intensity data at each designated position at each moment, which is conducive to analyzing the accuracy of the light intensity data at each moment.

[0056] Preferably, in some possible implementations of this embodiment, the method for obtaining the light change value is: for any specified position at any moment, the difference between the light intensity data at the previous adjacent moment of the specified position at that moment and the light intensity data at the specified position at that moment is used as the light change value of the specified position at that moment.

[0057] It should be noted that when the light change value is greater than 0, it means that the light intensity data at the corresponding moment of the corresponding specified position and its previous adjacent moment has an upward trend in time series; when the light change value is less than 0, it means that the light intensity data at the corresponding moment of the corresponding specified position and its previous adjacent moment has a downward trend in time series; when the light change value is equal to 0, it means that the light intensity data at the corresponding moment of the corresponding specified position and its previous adjacent moment has no change in time series.

[0058] At this point, obtaining the light change value of each specified location at each moment in the current time period is conducive to accurately screening out the light intensity data of each specified location that is not affected by the water surface fluctuations in the current time period, and then accurately adjusting the orientation of the photovoltaic panel. It should be noted that the first moment of the current time period does not have a previous adjacent moment, so the first moment of each specified location in the current time period is not analyzed.

[0059] S3: Combine the designated positions in pairs according to designated rules, and obtain the overall light intensity data of each designated position according to the distribution of all light change values ​​in each combination.

[0060] When adjusting the position of the photovoltaic panel, the left and right designated positions are adjusted synchronously, and the front and rear designated positions are adjusted synchronously. Therefore, this embodiment sets the front and rear symmetrical designated positions as a combination, and the left and right symmetrical designated positions as a combination.

[0061] In the absence of interference from other external factors such as water surface fluctuations, when the orientation of the photovoltaic panel is perpendicular to the angle of direct sunlight, the light change values ​​of the two designated positions in the same combination at the same time are equal; when the orientation of the photovoltaic panel is not perpendicular to the angle of direct sunlight, the light change values ​​of the two designated positions in the same combination at the same time are opposite to each other. For example, when the photovoltaic panel does not move, the angle of sunlight gradually shifts to the left, the light intensity data collected by the left light sensor continues to increase, and the light intensity data collected by the right light sensor continues to decrease, that is, the relationship between the light change values ​​of the two designated positions in the same combination is a negative correlation. At the same time, when the water surface fluctuation has no effect on the light intensity data, the light change value of each designated position changes more stably in time series; when the water surface fluctuation has an effect on the light intensity data, the light change value of each designated position changes more unstable in time series.

[0062] In the absence of interference from other external factors such as water surface fluctuations, the absolute values ​​of the light change values ​​at two designated positions in the same combination at the same time are equal, and the absolute values ​​of the light change values ​​at different times are equal. Therefore, this embodiment obtains the overall light intensity data of each designated position according to the distribution of all change values ​​in each combination, determines the light intensity data of each designated position that is not affected by water surface fluctuations, and more accurately adjusts the orientation position of the photovoltaic panel based on the overall light intensity data of each designated position.

[0063] Preferably, in some possible implementations of this embodiment, the method for obtaining the overall light intensity data can be found in Figure 5 , which shows a flow chart of a method for obtaining overall light intensity data provided by this embodiment, the method comprising the following steps:

[0064] Step S301: Filtering out reference light change values ​​in each combination according to the distribution of absolute values ​​of all light change values ​​in each combination.

[0065] In actual situations, when not affected by water surface fluctuations, the absolute values ​​of the light change values ​​at two specified positions in the same combination are distributed more densely; when affected by water surface fluctuations, the absolute values ​​of the light change values ​​at two specified positions in the same combination are more discrete. Therefore, this embodiment screens out the reference light change value in each combination according to the distribution of the absolute values ​​of all light change values ​​in each combination.

[0066] Preferably, in some possible implementations of this embodiment, the method for obtaining the reference light change value can be found in Figure 6 , which shows a flow chart of a method for obtaining a reference light change value provided by this embodiment, the method comprising the following steps:

[0067] Step S301 - 1 : For any combination, the absolute values ​​of all light change values ​​in the combination are clustered by an iterative self-organizing clustering algorithm to obtain a reference category.

[0068] When the absolute values ​​of the light change values ​​in a certain combination are more equal, it means that the light intensity data of the two specified positions in the combination are less affected by the water surface fluctuations. In order to more accurately analyze the normal light change values ​​that are not affected by the water surface fluctuations, this embodiment clusters the absolute values ​​of all light change values ​​in the combination through an iterative self-organizing clustering algorithm for any combination to obtain a reference category. Then, the absolute values ​​of the light change values ​​in the reference category are analyzed to prepare for screening out normal light change values. It should be noted that the iterative self-organizing clustering algorithm is a well-known technology and will not be described in detail.

[0069] Step S301 - 2 : Obtain the reliability value of each reference category according to the fluctuation of the absolute value of the light change value in each reference category.

[0070] When the absolute value distribution of the light change value in a reference category is denser, it means that the light change value in the reference category is more normal, which indirectly means that the light intensity data at the moment corresponding to the light change value in the reference category is more normal. Therefore, this embodiment obtains the reliability value of each reference category according to the fluctuation of the absolute value of the light change value in each reference category. The larger the reliability value, the more normal the light change value in the corresponding reference category.

[0071] The calculation formula of the reliability value is:

[0072] ; In the formula, is the reliability value of the kth reference category; is a first preset constant, not less than 1; is the total number of light variation values ​​in the kth reference category; is the mth light change value in the kth reference category; is the mean of the absolute values ​​of all light change values ​​in the kth reference category; is the absolute value function; norm is the normalization function.

[0073] This embodiment will Set to 1. The implementer can set it according to the actual situation. The size is not limited here.

[0074] It should be noted that The smaller it is, the denser the absolute value distribution of the light change value in the k-th reference category is, which indirectly indicates that the light change value in the k-th reference category is more normal. The larger the The larger the value is, the more likely it is that the moment corresponding to the light change value in the kth reference category is the moment when the light intensity data is normal.

[0075] At this point, the reliability value of each reference category is obtained.

[0076] Step S301 - 3 : Filter out the target category of the combination based on the reliability value, and use the light change value in the target category as the reference light change value of the combination.

[0077] It is known that the larger the reliability value, the more normal the light change value in the corresponding reference category. Therefore, for any combination, the reliability value of each reference category of the combination is obtained; the reference category corresponding to the maximum reliability value is used as the target category of the combination. It should be noted that if there are at least two reference categories corresponding to the maximum reliability value, the reference categories corresponding to the maximum reliability value are all used as the target category of the combination. The light change values ​​in the target category are all used as the reference light change values ​​of the combination.

[0078] At this point, the reference light variation value of each combination is obtained.

[0079] Step S302: Determine the target time of each designated position based on the reference light change value.

[0080] It is known that the reference light change value is the most normal light change value in the corresponding combination. Therefore, this embodiment determines the target moment of each specified position based on the reference light change value, wherein the light intensity data at the target moment of each specified position is the most normal light intensity data of the corresponding specified position in the current time period.

[0081] Preferably, in some possible implementations of this embodiment, the method for obtaining the target moment is: taking the moment corresponding to the reference light change value at the corresponding specified position as the reference moment; it should be noted that each reference light change value in each combination corresponds to only one specified position. Taking into account that under normal circumstances not affected by water surface fluctuations, the change trend of the light change value of each designated location in the current time period is the same, in order to accurately screen out the normal light intensity data at each designated location, and then accurately adjust the orientation position of the photovoltaic panel so that the power generation efficiency of the photovoltaic panel continues to be optimal, therefore, for any designated location, this embodiment compares the reference light change values ​​of all reference moments of the designated location with the preset change value threshold, and takes the reference light change values ​​greater than or equal to the preset change value threshold as the first light change value; takes the reference light change values ​​less than the preset change value threshold as the second light change value; compares the number of the first light change value and the second light change value, and takes the reference light change value corresponding to the maximum number as the target light change value; this embodiment sets the preset change value threshold to 0, distinguishes the reference light change values ​​with different change trends, and accurately obtains the normal light change value of each designated location in the current time period. For example, for the ath designated position, the reference light change values ​​of all reference moments of the ath designated position are obtained, and the reference light change values ​​greater than or equal to 0 are all used as the first light change values ​​of the ath designated position, and the reference light change values ​​less than 0 are all used as the second light change values ​​of the ath designated position; the number of the first light change values ​​of the ath designated position is obtained as the first number, and the number of the second light change values ​​of the ath designated position is obtained as the second number. When the first number is greater than the second number, the first light change values ​​of the ath designated position are all used as the target light change values; when the first number is less than the second number, the second light change values ​​of the ath designated position are all used as the target light change values; when the first number is equal to the second number, the first light change value and the second light change value of the ath designated position are all used as the target light change values. The reference moments corresponding to the target light change values ​​are all used as the target moments of the designated position.

[0082] At this point, the target time for each specified location is obtained.

[0083] Step S303: Obtaining overall light intensity data at each designated location according to the light intensity data at the target time.

[0084] It is known that the light intensity data at each designated position at the target time is the most normal light intensity data. Therefore, this embodiment obtains the overall light intensity data at each designated position based on the light intensity data at the target time.

[0085] Preferably, in some possible implementations of this embodiment, the method for acquiring the overall light intensity data is: for any specified position, the average of the light intensity data of the specified position at all target moments is used as the overall light intensity data of the specified position.

[0086] At this point, the overall light intensity data for each specified location is obtained.

[0087] S4: Obtain adjustment parameters of the two designated positions in each combination according to the difference in the overall light intensity data between the two designated positions in each combination.

[0088] The overall light intensity data of the two specified positions in each combination are compared to obtain the adjustment parameters of the two specified positions in each combination, and the current and voltage of the motor connected to the rotating shaft and the rotation direction of the rotating shaft are determined according to the adjustment parameters, so as to accurately adjust the orientation of the photovoltaic panel.

[0089] As an example, taking the left-right symmetrical designated position as an example, the calculation formula for obtaining the adjustment parameter between the left designated position and the right designated position is: ; In the formula, is the adjustment parameter between the left specified position and the right specified position; The overall light intensity data for the left specified position; The overall light intensity data for the specified position on the right.

[0090] It should be noted that when When greater than 0, Greater than , that is, the light intensity data at the left specified position is greater than the light intensity data at the right specified position, indicating that the sunlight at the current moment is more inclined to the left specified position; when When it is less than 0, Less than , that is, the light intensity data at the left specified position is less than the light intensity data at the right specified position, indicating that the sunlight at the current moment is more inclined to the right specified position; when When it is equal to 0, equal , that is, the light intensity data at the left specified position is equal to the light intensity data at the right specified position, and the photovoltaic panel does not need to be adjusted at the current moment.

[0091] At this point, the adjustment parameters of the two specified positions in each combination are obtained.

[0092] S5: Regulating the position of the photovoltaic panel based on the adjustment parameters.

[0093] Specifically, the data analysis control module determines the current and voltage of the motor connected to the transmission shaft associated with the connecting rod corresponding to the two designated positions in the corresponding combination at the current moment according to the adjustment parameters received for each combination, and at the same time, controls the rotation direction and number of turns of the transmission shaft, adjusts the extension amount of the connecting rod corresponding to the designated position, and regulates the position of the photovoltaic panel until the adjustment parameter is equal to the preset adjustment parameter threshold. The preset adjustment parameter threshold is 0, so that the light intensity data between the two symmetrical designated positions in each combination remains consistent, ensuring that the power generation efficiency of the photovoltaic panel is maintained at the best.

[0094] As an example, taking the designated position symmetrical on both sides as an example, this embodiment sets that when the transmission gear 24 rotates clockwise, the left connecting rod 11 moves downward and the right connecting rod 17 moves upward; when the transmission gear 24 rotates counterclockwise, the left connecting rod 11 moves upward and the right connecting rod 17 moves downward. The implementer can set the corresponding situation of the transmission gear rotation according to the actual situation, which is not limited here. When the value is greater than 0, the light intensity data at the left designated position is greater than the light intensity data at the right designated position. In order to make the sunlight directly shine on the entire photovoltaic panel, the analysis control module 27 The size of determines the current and voltage of the motor connected to the transmission shaft 23, and determines the number of rotations of the transmission shaft 23; at the same time, determines the rotation direction of the transmission shaft 23, that is, clockwise rotation, thereby driving the transmission gear 24 to rotate clockwise, causing the photovoltaic panel to shift to the left, and determining the left and right positions of the photovoltaic panel. When the light intensity data at the left designated position is less than 0, the light intensity data at the right designated position is less than the light intensity data. In order to make the sunlight directly shine on the entire photovoltaic panel, the analysis control module 27 The size of determines the current and voltage of the motor connected to the transmission shaft 23, and determines the number of rotations of the transmission shaft 23; at the same time, determines the rotation direction of the transmission shaft 23, that is, counterclockwise rotation, thereby driving the transmission gear 24 to rotate counterclockwise, causing the photovoltaic panel to shift to the right, and determining the left and right positions of the photovoltaic panel. When it is equal to 0, the left and right positions of the photovoltaic panel are not regulated. Similarly, the front and back positions of the photovoltaic panel are regulated.

[0095] At this point, the orientation of the photovoltaic panels is adjusted accurately and timely, reducing the impact of water surface fluctuations on the position of the photovoltaic panels, ensuring that the power generation efficiency of the photovoltaic panels is maintained at the best.

[0096] In summary, the present embodiment obtains the light intensity data of the designated position on the photovoltaic support panel at each moment; obtains the light change value of each designated position at each moment according to the difference in light intensity data between each designated position at each moment and its adjacent moments; combines the designated positions in pairs according to the designated rules, and obtains the adjustment parameters of the two designated positions in each combination according to the distribution of all light change values ​​in each combination; and regulates the position of the photovoltaic panel based on the adjustment parameters. The present invention reduces the influence of water surface fluctuations on the adjustment parameters by obtaining the adjustment parameters of the two designated positions in the same combination, and then accurately regulates the position of the photovoltaic panel with the adjustment parameters to ensure that the power generation efficiency of the photovoltaic panel is maintained at the best.

[0097] It should be noted that the sequence of the above embodiments of the present invention is only for description and does not represent the advantages and disadvantages of the embodiments. The processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0098] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

Claims

1. A supporting buoyancy platform for water photovoltaic power generation, comprising a supporting buoyancy mechanism, wherein the supporting buoyancy mechanism envelops a photovoltaic supporting plate and a photovoltaic panel, wherein the photovoltaic supporting plate is used to support the photovoltaic panel, and wherein: The above-water photovoltaic power generation supporting buoyancy platform further comprises a data acquisition module and a data analysis control module, and the signal output end of the data acquisition module is connected to the data analysis control module; The data acquisition module is used to obtain light intensity data at a specified position on the photovoltaic support plate at each moment in the current time period; The data analysis control module is used to obtain the light change value of each designated position at each moment according to the received light intensity data difference between each designated position at each moment and its adjacent moments; Combine the specified positions in pairs according to the specified rules, and obtain the overall light intensity data of each specified position based on the distribution of all light change values ​​in each combination; Obtain adjustment parameters of the two specified positions in each combination according to the difference of the overall light intensity data between the two specified positions in each combination; Controlling the position of the photovoltaic panel based on the adjustment parameters; The designation rule is: the front-to-back symmetrical designated positions are one combination, and the left-to-right symmetrical designated positions are one combination; The method for obtaining the overall light intensity data is: According to the distribution of the absolute values ​​of all light change values ​​in each combination, the reference light change value in each combination is screened out; Determine the target time at each designated position based on the reference light change value; According to the light intensity data at the target time, obtain the overall light intensity data of each specified location; For any specified location, the average of the light intensity data of the specified location at all target times is taken as the overall light intensity data of the specified location; The method for obtaining the reference light change value is: For any combination, the absolute values ​​of all light change values ​​in the combination are clustered using an iterative self-organizing clustering algorithm to obtain a reference category; According to the fluctuation of the absolute value of the light change value in each reference category, the reliability value of each reference category is obtained; Filtering the target category of the combination based on the reliability value, and using the light change value in the target category as the reference light change value of the combination; The calculation formula of the reliability value is: ; In the formula, is the reliability value of the kth reference category; is a first preset constant, not less than 1; is the total number of light variation values ​​in the kth reference category; is the mth light change value in the kth reference category; is the mean of the absolute values ​​of all light change values ​​in the kth reference category; norm is the normalization function.

2. A buoyancy support platform for water photovoltaic power generation as claimed in claim 1, characterized in that: The method for obtaining the light change value is: For any designated position at any time, the difference between the light intensity data at the previous adjacent time of the designated position at that time and the light intensity data at the designated position at that time is obtained as the light change value of the designated position at that time.

3. The buoyancy support platform for water photovoltaic power generation according to claim 1, characterized in that: The method for obtaining the target category is: For any combination, obtain the reliability value of each reference category of the combination; The reference category corresponding to the maximum reliability value is used as the target category of the combination.

4. The buoyancy support platform for water photovoltaic power generation according to claim 1, characterized in that: The method for obtaining the target time is: The time corresponding to the reference light change value at the corresponding designated position is used as the reference time; For any designated position, the reference light change values ​​of all reference moments of the designated position are compared with the preset change value threshold, and the reference light change values ​​greater than or equal to the preset change value threshold are taken as the first light change values; The reference light change values ​​that are smaller than the preset change value threshold are all used as the second light change values; Compare the first light change value with the second light change value, and use the reference light change value corresponding to the maximum value as the target light change value; The reference time corresponding to the target light change value is used as the target time of the specified position.

5. The buoyancy support platform for water photovoltaic power generation according to claim 1, characterized in that: The method in which the data control module is used to adjust the position of the photovoltaic panel according to the received adjustment parameters is: The data analysis control module determines the current and voltage of the motor connected to the transmission shaft according to the size of the adjustment parameter, controls the rotation direction and number of turns of the transmission shaft, adjusts the extension and retraction amount of the connecting rod corresponding to the specified position, and regulates the position of the photovoltaic panel until the adjustment parameter is equal to the preset adjustment parameter threshold.

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