Tracking system for deploying and controlling photovoltaic module

Abstract

The invention provides a tracking system for photovoltaic module deployment and control, and the system comprises a distribution module which is used for analyzing the distribution condition of photovoltaic modules and constructing a distribution diagram based on the distribution condition; the deploying and controlling module is used for determining and outputting the deploying and controlling position of the deploying and controlling device according to the distribution diagram; the configuration module is used for configuring a tracking target of the deployment and control device; and the tracking module is used for sending a tracking task to the deployment and control device. According to the tracking system for photovoltaic module deployment and control, deployment and control tracking of distributed photovoltaic modules is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and particularly relates to a tracking system for photovoltaic module layout control. Background Art

[0002] In recent years, photovoltaic power generation, as a solar power generation technology, has developed rapidly. Photovoltaic modules for photovoltaic power generation have also emerged on rural rooftops, which belong to distributed photovoltaic power generation equipment; distributed photovoltaic power generation follows the principles of adapting to local conditions, being clean and efficient, having a decentralized layout, and being utilized nearby, and can make full use of local solar energy resources. Moreover, installing photovoltaic equipment on the roof can not only effectively increase the daily lighting time but also reduce the occupation of land; due to the relatively scattered distribution of such photovoltaic modules, it is not conducive to layout control and tracking. How to achieve the layout control and tracking of distributed photovoltaic modules has always been a technical problem that urgently needs to be solved. Summary of the Invention

[0003] One of the purposes of the present invention is to provide a tracking system for photovoltaic module layout control to achieve the layout control and tracking of distributed photovoltaic modules.

[0004] A tracking system for photovoltaic module layout control provided by an embodiment of the present invention includes:

[0005] A distribution module, configured to analyze the distribution of photovoltaic modules and construct a distribution map based on the distribution;

[0006] A layout control module, configured to determine the layout positions of layout control devices according to the distribution map and output them;

[0007] A configuration module, configured to configure the tracking targets of the layout control devices;

[0008] A tracking module, configured to send tracking tasks to the layout control devices.

[0009] Preferably, the layout control module determines the layout positions of the layout control devices according to the distribution map and performs the following operations:

[0010] Perform a first segmentation on the distribution map according to a preset segmentation grid to obtain a plurality of first segmentation regions;

[0011] Configure priorities for each of the first segmentation regions according to the number of photovoltaic modules in the first segmentation regions;

[0012] Determine the layout positions of the layout control devices in each of the first segmentation regions in the order of priority from front to back.

[0013] Preferably, the layout control module configures priorities for each of the first segmentation regions according to the number of photovoltaic modules in the first segmentation regions and performs the following operations:

[0014] Compare the difference in the number of photovoltaic modules within a primary segmentation area with the number of photovoltaic modules within any one of the surrounding primary segmentation areas;

[0015] When the number of photovoltaic modules within a primary segmentation area is more than the number of photovoltaic modules within any one of the surrounding primary segmentation areas, configure the priority of the primary segmentation area as level zero;

[0016] Configure the priority of other segmentation areas as the number of primary segmentation areas between other segmentation areas and the nearest first-priority configuration area plus one;

[0017] The order of priorities from front to back corresponds to from level zero backwards.

[0018] Preferably, the deployment module determines the deployment positions of the deployment devices in each primary segmentation area and performs the following operations:

[0019] When determining the deployment positions of the deployment devices in the primary segmentation area of level zero, determine the distances between each deployment point to be deployed and each photovoltaic module pairwise;

[0020] Based on a pre-configured distance and analysis value correspondence table, determine the analysis value;

[0021] Conduct a situation analysis on each photovoltaic module to determine the correlation coefficient;

[0022] Use the sum of the products of the analysis values corresponding to the distances from the deployment point to be deployed to each photovoltaic module and the correlation coefficient as the point analysis value;

[0023] Take the deployment point to be deployed with the smallest point analysis value as the deployment position of the deployment device.

[0024] Preferably, the deployment module determines the deployment positions of the deployment devices in each primary segmentation area and performs the following operations:

[0025] When determining the deployment positions of the deployment devices in the primary segmentation area after level zero, divide the primary segmentation area according to the determined deployment positions and the control radius of the deployment device, and use the primary segmentation area not within the control radius of the deployment device as the secondary segmentation area;

[0026] When the size of the secondary segmentation area is less than a preset threshold, merge adjacent secondary segmentation areas to obtain a combined area;

[0027] Determine the distances between each deployment point to be deployed in the combined area and each photovoltaic module pairwise;

[0028] Based on a pre-configured distance and analysis value correspondence table, determine the analysis value;

[0029] Analyze the situation of each photovoltaic module to determine the correlation coefficient;

[0030] Use the sum of the products of the analysis values corresponding to the distances from the to-be-laid-out points to each photovoltaic module and the correlation coefficient as the point analysis value;

[0031] Take the to-be-laid-out point with the smallest point analysis value as the layout position of the layout device.

[0032] Preferably, the tracking system for photovoltaic module layout further includes:

[0033] A layout optimization module for analyzing the tracking control records of the layout device, determining the layout optimization plan and executing it.

[0034] Preferably, the layout optimization module performs the following operations:

[0035] Screen the tracking control records and extract the records of the fault category;

[0036] Based on the records of the fault category, determine the corresponding targets and the fault scores corresponding to each target from the distribution map;

[0037] Use a pre-configured intercept grid to slide on the distribution map to intercept the fault concentration area;

[0038] Configure new layout devices in the fault concentration area to share the tracking tasks of the photovoltaic modules in the fault concentration area.

[0039] Preferably, the tracking tasks include:

[0040] After analyzing the data monitored by the monitoring module corresponding to the photovoltaic module and taking it as the shooting target, the task of shooting the on-site image of the photovoltaic module;

[0041] And / or,

[0042] The task of tracking and controlling the sun position after analyzing the environmental information.

[0043] Preferably, the layout device includes: a drone carrying platform, a drone, an image acquisition device carried on the drone, a controller and a communication module.

[0044] Preferably, when executing the shooting task of the shooting target obtained by risk analysis, update the inspection path according to the risk assessment of the photovoltaic modules around the inspection path.

[0045] Other features and advantages of the present invention will be described in the following specification, and, in part, will be obvious from the specification, or will be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained by the structures specifically pointed out in the written specification and the drawings.

[0046] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Description of the Drawings

[0047] The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0048] Figure 1 is a schematic diagram of a tracking system for photovoltaic module layout control in an embodiment of the present invention;

[0049] Figure 2 is a schematic diagram of the execution steps of the layout control module in an embodiment of the present invention. Detailed Embodiments

[0050] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0051] An embodiment of the present invention provides a tracking system for photovoltaic module layout control, as Figure 1 shown, including:

[0052] A distribution module 1, configured to analyze the distribution of photovoltaic modules and construct a distribution map based on the distribution;

[0053] A layout control module 2, configured to determine the layout positions of the layout control devices according to the distribution map and output them;

[0054] A configuration module 3, configured to configure the tracking targets of the layout control devices;

[0055] A tracking module 4, configured to send tracking tasks to the layout control devices.

[0056] In view of the wide distribution of the distributed photovoltaic module network, in this embodiment, the distribution of photovoltaic modules is analyzed to construct a distribution map, and then reasonable layout positions are configured. The configured layout control devices are used to track, monitor, and control the photovoltaic modules; specifically, it is implemented by sending tracking tasks to the layout control devices.

[0057] In order to determine reasonable layout positions; in one embodiment, as Figure 2 shown, the layout control module determines the layout positions of the layout control devices according to the distribution map and performs the following operations:

[0058] Step 1: Perform a first segmentation on the distribution map according to a preset segmentation grid to obtain multiple first-segmentation regions; the size of each grid in the preset segmentation grid can be configured, and generally, the size is obtained by taking the integer of the product of any value from 0.6 to 0.8 of the corresponding farthest working distance of the deployment device.

[0059] Step 2: Configure priorities for each first-segmentation region according to the number of photovoltaic modules in the first-segmentation region.

[0060] Step 3: Determine the deployment positions of the deployment devices in each first-segmentation region in the order from the front to the back according to the priorities.

[0061] Among them, the deployment module configures priorities for each first-segmentation region according to the number of photovoltaic modules in the first-segmentation region and performs the following operations:

[0062] Compare the difference in the number of photovoltaic modules in the first-segmentation region with the number of photovoltaic modules in any adjacent first-segmentation region.

[0063] When the number of photovoltaic modules in the first-segmentation region is more than the number of photovoltaic modules in any adjacent first-segmentation region, configure the priority of the first-segmentation region as level zero.

[0064] Configure the priorities of other segmentation regions as the number of first-segmentation regions between other segmentation regions and the nearest first-priority configuration region plus one; for example, when there is a first-segmentation region with level zero adjacent to other segmentation regions, configure the priority of this segmentation region as one; when there is one first-segmentation region between other segmentation regions and the nearest first-segmentation region with level zero, configure the priority of this segmentation region as two, and so on.

[0065] The order from the front to the back of the priorities corresponds to from level zero to the back.

[0066] Among them, the deployment module determines the deployment positions of the deployment devices in each first-segmentation region and performs the following operations:

[0067] When determining the deployment positions of the deployment devices in the first-segmentation region with level zero, determine the distances between each deployment point to be determined in the first-segmentation region and each pair of photovoltaic modules; each deployment point to be determined can be configured by the user or obtained by analyzing parameters such as the environment and adjacent devices at each point in the distribution map by a pre-configured neural network model.

[0068] Based on a pre-configured distance and analysis value correspondence table, determine the analysis value; in the distance and analysis value correspondence table, the analysis value is in one-to-one correspondence with the distance value.

[0069] Analyze the situation of each photovoltaic module to determine the correlation coefficient. The specific situation analysis is as follows: For parameters such as the average power generation of the photovoltaic module, type (fixed, rotating), and the weight of the corresponding configuration, query the pre-configured coefficient table to determine the correlation coefficient corresponding to the parameter. Among them, the type being fixed means that the photovoltaic module does not track the angle of sunlight; rotating means that it can adjust the angle by tracking the angle of sunlight.

[0070] Use the sum of the products of the analysis values corresponding to the distances from the to-be-laid-out points to each photovoltaic module and the correlation coefficients as the point analysis value.

[0071] Take the to-be-laid-out point with the smallest point analysis value as the layout position of the layout device. On the one hand, it ensures that the sum of the distances from the layout device to each photovoltaic module is the closest, and on the other hand, it ensures that it is closer to the photovoltaic modules with better distance performance, facilitating timely response in case of problems.

[0072] Among them, the layout module determines the layout positions of the layout devices in each primary segmentation area and performs the following operations:

[0073] When determining the layout positions of the layout devices in the primary segmentation areas after the zero level, divide the primary segmentation area according to the determined layout positions and the control radius of the layout device, and take the primary segmentation area not within the control radius of the layout device as the secondary segmentation area.

[0074] When the size of the secondary segmentation area is smaller than the preset threshold (0.5 times the area of a single grid of the initial segmentation network), merge the adjacent secondary segmentation areas to obtain a combined area.

[0075] Determine the distances between each to-be-laid-out point in the combined area and each photovoltaic module in pairs.

[0076] Based on the pre-configured correspondence table between distance and analysis value, determine the analysis value.

[0077] Analyze the situation of each photovoltaic module to determine the correlation coefficient.

[0078] Use the sum of the products of the analysis values corresponding to the distances from the to-be-laid-out points to each photovoltaic module and the correlation coefficients as the point analysis value.

[0079] Take the to-be-laid-out point with the smallest point analysis value as the layout position of the layout device.

[0080] Due to the uncertainty of the faults of the photovoltaic modules, there is a situation where the load of some layout devices is relatively high. In one embodiment, the tracking system for photovoltaic module layout further includes:

[0081] A layout optimization module for analyzing the tracking control records of the layout devices, determining a layout optimization plan, and executing it.

[0082] Among them, the control optimization module performs the following operations:

[0083] Filter the tracking control records and extract the records of the fault category;

[0084] According to the records of the fault category, determine the corresponding targets on the distribution map and the fault scores corresponding to each target; the fault scores are based on a pre-configured scoring library and are obtained through comprehensive analysis of the fault type, components involved in the fault, repair time, etc.;

[0085] Slide on the distribution map with a pre-configured intercept grid to intercept the fault concentration area; the intercept grid is essentially a circular intercept frame, and the center of the intercept frame is sequentially changed to the points to be controlled on the distribution map; the sliding operation on the distribution map is realized;

[0086] Configure new control devices in the fault concentration area to share the tracking tasks of the photovoltaic modules in the fault concentration area.

[0087] In one embodiment, the tracking tasks include:

[0088] After analyzing the data monitored by the monitoring module corresponding to the photovoltaic module and taking it as the shooting target, the task of shooting the on-site image of the photovoltaic module;

[0089] And / or,

[0090] The sun position tracking control task after analyzing the environmental information.

[0091] Among them, the control device includes: a drone carrying platform, a drone, an image acquisition device carried on the drone, a controller, and a communication module.

[0092] Among them, when executing the shooting task of the shooting target obtained by risk analysis, the inspection path is updated according to the risk assessment of the photovoltaic modules around the inspection path.

[0093] There are two situations where the photovoltaic module is used as the shooting target. One is when it is determined that the monitoring data meets the pre-configured suspected fault conditions according to the analysis of the monitoring data of the monitoring terminals associated with each photovoltaic module, and the photovoltaic module is used as the shooting target; the other is the photovoltaic module with a relatively high risk obtained according to the risk analysis;

[0094] Among them, the risk analysis of the photovoltaic module is specifically:

[0095] Perform risk segmentation on the monitoring range (the interval of data meeting normal operation), determine multiple regional ranges and the corresponding risk assessment values for each regional range;

[0096] Extract the data of the most recent preset number of times (3 to 10 times) from the monitoring data; the monitoring data is essentially the output voltage and current of the photovoltaic modules in any configured time period from 2 minutes to 30 minutes.

[0097] Determine the regional range corresponding to each data, and then determine the risk assessment value corresponding to each data.

[0098] Perform a weighted average on the risk assessment values of each data to obtain the first assessment value; the shorter the data is from the current time, the greater the weighting coefficient.

[0099] Based on the monitoring data and the pre-configured conversion efficiency analysis, determine the conversion efficiency of each photovoltaic module; the conversion efficiency is the corresponding relationship between light energy and electrical energy; determine the standard power generation according to the current environment; the conversion efficiency is the ratio between the actual power generation and the standard power generation.

[0100] According to the conversion efficiency, query the pre-configured conversion efficiency and second assessment value correspondence table to determine the second assessment value; the conversion efficiency and second assessment value correspondence table is pre-configured, and in the table, the second assessment value is in one-to-one correspondence with the conversion efficiency.

[0101] Calculate the difference between each adjacent data, and construct a stability analysis vector based on the difference; mainly calculate the difference between the power generations corresponding to each data; arrange the differences in time sequence to form a stability analysis vector.

[0102] Use the stability analysis vector to query the pre-configured stability analysis library to determine the third assessment value; the third assessment value in the stability analysis library is in one-to-one correspondence with the stability analysis vector.

[0103] Calculate the weighted sum of the first assessment value, the second assessment value, and the third assessment value to obtain the risk value. The weighting coefficients corresponding to the first assessment value, the second assessment value, and the third assessment value are pre-configured.

[0104] The update steps of the inspection path are as follows:

[0105] Obtain the photovoltaic module distribution map; mark the selected target to be detected on the photovoltaic module distribution map.

[0106] Construct an inspection path; the inspection path starts from a preset starting position, returns to a preset ending position, and passes through the targets to be detected in sequence.

[0107] Estimate the inspection time for the inspection path; when the estimated inspection time is greater than or equal to the pre-configured inspection time (the maximum single flight time of the UAV multiplied by a preset coefficient, where the coefficient is any value between 0.6 and 0.9) and less than or equal to the warning time (the maximum single flight time of the UAV), do not update the inspection path; the inspection time estimation mainly includes estimating the movement time of the clear movement distance divided by the movement speed of the UAV and the shooting and staying time of each optoelectronic component;

[0108] When it is less than the inspection time, update the inspection path; when it is greater than the warning time, group the targets to be detected, construct an inspection path for each group, and then perform the update judgment and update of the inspection path;

[0109] Among them, the update of the inspection path includes:

[0110] Extract the risk values of the optoelectronic components within a distance range from the inspection path; perform a risk value ranking, and successively set the optoelectronic component with the largest risk value as the target to be detected and update the inspection path; until the inspection time of the updated inspection path is greater than or equal to the pre-configured inspection time and less than or equal to the warning time;

[0111] To improve the update efficiency, the distance range can be determined first to reduce the optoelectronic components that need to be analyzed; the value of the distance range is the same as the value obtained by subtracting a staying time from the difference between the pre-configured inspection time and the inspection time of the inspection path and then dividing by the movement speed of the UAV.

[0112] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and its equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A tracking system for photovoltaic module deployment, characterized in that: include: A distribution module is used to analyze the distribution of photovoltaic modules and construct a distribution map based on the distribution; A control module is used to determine the control position of the control device according to the distribution map and output it; A configuration module, used to configure the tracking target of the control device; The tracking module is used to send tracking tasks to the control device.

2. The tracking system for photovoltaic module deployment control according to claim 1, characterized in that: The control module determines the control position of the control device based on the distribution map and performs the following operations: The distribution map is segmented once according to a preset segmentation grid to obtain a plurality of first segmentation areas; According to the number of PV modules in the primary division area, a priority is configured for each primary division area; The control positions of the control devices in each primary divided area are determined in order of priority from front to back.

3. The tracking system for photovoltaic module deployment control according to claim 2, characterized in that: The control module configures the priority for each primary division area according to the number of PV modules in the primary division area and performs the following operations: Comparing the difference between the number of photovoltaic modules in the primary division area and the number of photovoltaic modules in any surrounding primary division areas; When the number of photovoltaic modules in a primary division area is greater than the number of photovoltaic modules in any surrounding primary division areas, the priority of the primary division area is configured as zero level; The priorities of other segmented areas are configured to be the number of the first segmented areas between the other segmented areas and the nearest first priority configured area plus one; The order of priority from front to back corresponds to level zero onwards.

4. The tracking system for photovoltaic module deployment control according to claim 2, characterized in that: The control module determines the control position of the control device in each primary division area and performs the following operations: When determining the control position of the control device in the zero-level primary division area, determine the distance between each to-be-controlled point and each photovoltaic module in the primary division area; Determine the analysis value based on a pre-configured distance and analysis value correspondence table; Conduct situation analysis on each photovoltaic module and determine the correlation coefficient; The sum of the products of the analysis value corresponding to the distance from the point to be controlled to each photovoltaic module and the correlation coefficient is taken as the point analysis value; The point to be controlled with the smallest point evaluation value is used as the control position of the control device.

5. The tracking system for photovoltaic module deployment control according to claim 4, characterized in that: The control module determines the control position of the control device in each primary division area and performs the following operations: When determining the control position of the control device in the primary segmentation area after the zero level, the primary segmentation area is segmented according to the determined control position and the control radius of the control device, and the primary segmentation area that is not within the control radius of the control device is used as the secondary segmentation area; When the size of the secondary segmentation area is smaller than a preset threshold, the adjacent secondary segmentation areas are merged to obtain a combined area; Determine the distance between each point to be controlled and each photovoltaic module in the combined area; Determine the analysis value based on a pre-configured distance and analysis value correspondence table; Conduct situation analysis on each photovoltaic module and determine the correlation coefficient; The sum of the products of the analysis value corresponding to the distance from the point to be controlled to each photovoltaic module and the correlation coefficient is taken as the point analysis value; The point to be controlled with the smallest point evaluation value is used as the control position of the control device.

6. The tracking system for photovoltaic module deployment control according to claim 1, characterized in that: Also includes: The control optimization module is used to analyze the tracking and control records of the control devices, determine the control optimization plan and execute it.

7. The tracking system for photovoltaic module deployment control according to claim 6, characterized in that: The deployment optimization module performs the following operations: Screen the tracking control records and extract the fault records; According to the records of fault categories, the corresponding targets and the fault scores corresponding to each target are determined from the distribution map; Use the pre-configured interception grid to slide on the distribution map and intercept the fault concentration area; New control devices are configured in the fault concentrated areas to share the tracking tasks of the photovoltaic modules in the fault concentrated areas.

8. The tracking system for photovoltaic module deployment control according to claim 7, characterized in that: Tracking tasks include: The task of shooting the on-site images of the photovoltaic components is to analyze the data monitored by the monitoring module corresponding to the photovoltaic components and use them as shooting targets; and / or, The sun position tracking control task is carried out after analyzing the environmental information.

9. The tracking system for photovoltaic module deployment control according to claim 8, characterized in that: The control device includes: a UAV carrying platform, a UAV, an image acquisition device carried on the UAV, a controller and a communication module.

10. The tracking system for photovoltaic module deployment control according to claim 8, characterized in that: When executing the shooting task of the shooting target obtained by risk analysis, the inspection path is updated according to the risk assessment of the photovoltaic components around the inspection path.

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