Photovoltaic power station construction deviation verification method and device, electronic equipment and storage medium
By verifying the panoramic map of the photovoltaic power plant with the design specifications of the construction design, the problem of non -matching design and construction in the construction of photovoltaic power stations has been solved, and an efficient and accurate deviation verification is achieved, and the efficiency and safety of power generation are improved.
Patent Information
- Application Number
- CN202411155899.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-01-24
AI Technical Summary
During the construction of photovoltaic power stations, the problem of mismatch between design and actual construction has affected the power generation efficiency and safe operation, and the existing manual calibration efficiency is low and inaccurate.
By conducting a panoramic diagram of the photovoltaic power plant with the construction design specification data, the construction deviation verification is obtained, and the actual quantity and inclination of the photovoltaic component are obtained, and the comparison is compared with the design data to identify the deviation.
It improves the efficiency of deviation verification in photovoltaic power station construction, accurately identifies inclination angle abnormalities, component missing and component over-matching, and reduces human errors.
Smart Images
Figure CN119358862A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of photovoltaic technology, and in particular to a photovoltaic power station construction deviation verification method, device, electronic equipment and storage medium. Background Art
[0002] As the global demand for renewable energy grows, the scale of photovoltaic power station construction is expanding rapidly. However, during the construction of photovoltaic power stations, there is a tendency for mismatches between design and actual construction to occur, which affects the power generation efficiency and safe operation of the power station.
[0003] The existing solution relies on manual on-site verification of photovoltaic power stations, which is time-consuming and labor-intensive and cannot accurately identify construction deviations that occur during the construction of photovoltaic power stations. Summary of the invention
[0004] The present application provides a method, device, electronic device and storage medium for checking construction deviations of photovoltaic power stations, which are used to obtain construction deviation verification results by performing construction deviation verification on a panoramic view of the photovoltaic power station and construction design specification data, thereby solving the problem of inaccurate on-site verification and identification, and achieving the effect of improving the efficiency of construction deviation verification of photovoltaic power stations.
[0005] A first aspect of an embodiment of the present application provides a method for checking construction deviations of a photovoltaic power station, including: obtaining construction design specification data and a panoramic view of the photovoltaic power station in the photovoltaic power station, the construction design specification data including the design quantity and design inclination of photovoltaic components; parsing the panoramic view of the photovoltaic power station to obtain the actual quantity and actual inclination of photovoltaic components in the photovoltaic power station; and checking the construction deviations of the photovoltaic power station based on the actual quantity, actual inclination, design quantity and design inclination to obtain a construction deviation checking result.
[0006] The second aspect of an embodiment of the present application provides a photovoltaic power station construction deviation verification device, including: an acquisition module, used to obtain construction design specification data and a panoramic view of the photovoltaic power station in the photovoltaic power station, the construction design specification data including the design quantity and design inclination of photovoltaic components; an analysis module, used to analyze the panoramic view of the photovoltaic power station to obtain the actual number and actual inclination of photovoltaic components in the photovoltaic power station; a verification module, used to perform construction deviation verification on the photovoltaic power station based on the actual number, actual inclination, design number and design inclination to obtain a construction deviation verification result.
[0007] A third aspect of an embodiment of the present application provides an electronic device, comprising: a memory and at least one processor, wherein instructions are stored in the memory; and at least one processor calls the instructions in the memory so that the electronic device executes the photovoltaic power station construction deviation verification method of the first aspect mentioned above.
[0008] A fourth aspect of the present application provides a computer-readable storage medium, in which instructions are stored. When the computer-readable storage medium is run on a computer, the computer executes the above-mentioned photovoltaic power station construction deviation verification method.
[0009] In the technical solution provided in the embodiment of the present application, the construction design specification data and the panoramic view of the photovoltaic power station are obtained, and the construction design specification data include the design quantity and design inclination of the photovoltaic modules; the panoramic view of the photovoltaic power station is parsed to obtain the actual quantity and actual inclination of the photovoltaic modules in the photovoltaic power station; the photovoltaic power station is subjected to construction deviation verification based on the actual quantity, actual inclination, design quantity and design inclination to obtain the construction deviation verification result. In the embodiment of the present application, the construction deviation verification result is obtained by performing construction deviation verification on the panoramic view of the photovoltaic power station and the construction design specification data, thereby solving the problem of inaccurate on-site verification identification and achieving the effect of improving the efficiency of construction deviation verification of the photovoltaic power station. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 A schematic diagram of an embodiment of a photovoltaic power station construction deviation verification method in an embodiment of the present application;
[0011] Figure 2 This is another schematic diagram of an embodiment of the photovoltaic power station construction deviation verification method in the embodiment of the present application;
[0012] Figure 3 A schematic diagram of a photovoltaic power station construction deviation calibration device in an embodiment of the present application;
[0013] Figure 4 A schematic diagram of an electronic device in an embodiment of the present application. DETAILED DESCRIPTION
[0014] The present application provides a method, device, electronic device and storage medium for checking construction deviations of photovoltaic power stations, which are used to obtain construction deviation verification results by performing construction deviation verification on a panoramic view of the photovoltaic power station and construction design specification data, thereby solving the problem of inaccurate on-site verification and identification, and achieving the effect of improving the efficiency of construction deviation verification of photovoltaic power stations.
[0015] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0016] See also Figure 1 , a flow chart of a photovoltaic power station construction deviation verification method provided by an embodiment of the present application, specifically including:
[0017] 101. Obtain the construction design specification data and the panoramic view of the photovoltaic power station. The construction design specification data includes the design quantity and design inclination angle of the photovoltaic modules.
[0018] The photovoltaic power station construction deviation verification device obtains the construction design specification data and the photovoltaic power station panorama in the photovoltaic power station. The construction design specification data includes the design quantity and design inclination of photovoltaic modules. The photovoltaic power station panorama can be photographed from a bird's-eye view by a drone or other equipment with aerial photography function, thereby obtaining a panoramic image of each photovoltaic module in the photovoltaic power station; and the construction design specification data includes the number of photovoltaic modules and the inclination of photovoltaic modules when the photovoltaic power station is planned.
[0019] The design inclination angle of photovoltaic modules in photovoltaic power stations is generally determined based on the longitude and latitude information of the photovoltaic power station and the surrounding shielding information, so that the photovoltaic modules can receive light radiation for a longer period of time, and the photovoltaic modules in the same photovoltaic power station have the same corresponding inclination angle. The design inclination angle of photovoltaic modules is determined based on the geographical location information of the photovoltaic station.
[0020] The shading is mainly caused by the shadows of obstacles around the photovoltaic site, such as tall buildings, trees, etc.; it is also affected by snow, bird droppings, leaves, dust, etc. on the photovoltaic modules; it can also be affected by weather factors, for example, photovoltaic equipment will also cast shadows in cloudy, foggy, rainy and snowy weather.
[0021] The executor of the embodiment of the present application may be a photovoltaic power station construction deviation verification device, or other controllers with processing functions. For the convenience of description, the embodiment of the present application and subsequent embodiments are described by taking the photovoltaic power station construction deviation verification device as an example.
[0022] 102. Analyze the panoramic view of the photovoltaic power station to obtain the actual number and actual inclination angle of the photovoltaic modules in the photovoltaic power station.
[0023] The photovoltaic power station construction deviation verification device analyzes the photovoltaic power station panoramic view to obtain the actual number and actual inclination of photovoltaic modules in the photovoltaic power station.
[0024] It should be noted that the panoramic view of the photovoltaic power station can accurately reflect the actual number of photovoltaic modules and the actual inclination angle of the photovoltaic modules, because the photovoltaic modules are all on the same plane and there are obvious boundaries between the photovoltaic modules, which can be directly reflected in the panoramic view of the photovoltaic power station; and the actual inclination angle needs to be analyzed by a preset image recognition algorithm on the panoramic view of the photovoltaic power station, and the actual inclination angle of the photovoltaic modules is obtained after data conversion.
[0025] 103. Based on the actual quantity, actual inclination, design quantity and design inclination, the photovoltaic power station is checked for construction deviation to obtain the construction deviation check result.
[0026] The photovoltaic power station construction deviation verification device performs construction deviation verification on the photovoltaic power station based on the actual quantity, the actual inclination angle, the design quantity and the design inclination angle to obtain a construction deviation verification result.
[0027] It should be noted that the actual quantity is compared with the designed quantity, and the actual inclination is compared with the designed inclination. Under normal circumstances, the actual quantity is equal to the designed quantity, and the actual inclination is equal to the designed inclination, which means that the actual construction is strictly carried out in accordance with the design standards. When the results of the two comparisons are the same, it means that the static verification at the hardware level has passed, and dynamic verification at the software level is required. When any comparison result is different, that is, an abnormality occurs, the corresponding construction deviation verification result is determined for the abnormal situation.
[0028] It is understandable that the embodiment of the present application can automatically obtain and parse the panoramic view of the photovoltaic power station, and realize the static verification of the consistency between the design data (design quantity and design inclination) and the physical data (actual quantity and actual inclination). By comparing the actual number D of photovoltaic components identified in the panoramic view of the photovoltaic power station and the actual inclination F with the design number K and the design inclination S respectively, the construction deviation in the photovoltaic power station can be accurately located. For example, the actual number is inconsistent with the design number, resulting in a construction deviation of missing components or over-allocation of components. For another example, the actual inclination is inconsistent with the design inclination, resulting in a construction deviation of abnormal inclination.
[0029] In the embodiment of the present application, a panoramic view of a photovoltaic power station is checked against construction design specification data through an image recognition algorithm to obtain a construction deviation verification result, which can accurately identify construction deviations such as abnormal inclination, missing components, and over-allocation of components, significantly improve verification efficiency, and reduce human errors.
[0030] See also Figure 2 , another flow chart of the photovoltaic power station construction deviation verification method provided by the embodiment of the present application specifically includes:
[0031] 201. Obtain construction design specification data and a panoramic view of the photovoltaic power station, wherein the construction design specification data includes the design quantity and design inclination angle of photovoltaic modules.
[0032] The photovoltaic power station construction deviation verification device obtains the construction design specification data and the photovoltaic power station panorama in the photovoltaic power station. The construction design specification data includes the design quantity and design inclination of photovoltaic modules. The photovoltaic power station panorama can be photographed from a bird's-eye view by a drone or other equipment with aerial photography function, thereby obtaining a panoramic image of each photovoltaic module in the photovoltaic power station; and the construction design specification data includes the number of photovoltaic modules and the inclination of photovoltaic modules when the photovoltaic power station is planned.
[0033] The design inclination angle of photovoltaic modules in photovoltaic power stations is generally determined based on the longitude and latitude information of the photovoltaic power station and the surrounding shielding information, so that the photovoltaic modules can receive light radiation for a longer period of time, and the photovoltaic modules in the same photovoltaic power station have the same corresponding inclination angle. The design inclination angle of photovoltaic modules is determined based on the geographical location information of the photovoltaic station.
[0034] The shading is mainly caused by the shadows of obstacles around the photovoltaic site, such as tall buildings, trees, etc.; it is also affected by snow, bird droppings, leaves, dust, etc. on the photovoltaic modules; it can also be affected by weather factors, for example, photovoltaic equipment will also cast shadows in cloudy, foggy, rainy and snowy weather.
[0035] 202. Analyze the panoramic view of the photovoltaic power station to obtain the actual number and actual inclination angle of the photovoltaic modules in the photovoltaic power station.
[0036] The photovoltaic power station construction deviation verification device analyzes the photovoltaic power station panoramic view to obtain the actual number and actual inclination of photovoltaic modules in the photovoltaic power station.
[0037] It should be noted that the panoramic view of the photovoltaic power station can accurately reflect the actual number of photovoltaic modules and the actual inclination angle of the photovoltaic modules, because the photovoltaic modules are all on the same plane and there are obvious boundaries between the photovoltaic modules, which can be directly reflected in the panoramic view of the photovoltaic power station; and the actual inclination angle needs to be analyzed by a preset image recognition algorithm on the panoramic view of the photovoltaic power station, and the actual inclination angle of the photovoltaic modules is obtained after data conversion.
[0038] 203. Determine whether the actual quantity, actual inclination, design quantity and design inclination meet the preset static construction deviation verification conditions. The static construction deviation verification conditions are that the actual quantity is equal to the design quantity and the actual inclination is equal to the design inclination.
[0039] The photovoltaic power station construction deviation verification device determines whether the actual quantity, actual inclination, design quantity and design inclination meet the preset static construction deviation verification conditions. The static construction deviation verification conditions are that the actual quantity is equal to the design quantity and the actual inclination is equal to the design inclination.
[0040] It should be noted that the actual quantity is compared with the designed quantity, and the actual inclination is compared with the designed inclination. Under normal circumstances, the actual quantity is equal to the designed quantity, and the actual inclination is equal to the designed inclination, which means that the actual construction is strictly carried out in accordance with the design standards. When the results of the two comparisons are the same, it means that the static verification at the hardware level has passed, and dynamic verification at the software level is required. When any comparison result is different, that is, an abnormality occurs, the corresponding construction deviation verification result is determined for the abnormal situation.
[0041] 204. If not satisfied, a first construction deviation verification result is determined based on the actual quantity and the actual inclination angle, and the first verification result is any one of an abnormal inclination angle, a missing component, and an over-allocation of a component.
[0042] It is understandable that the embodiment of the present application can automatically obtain and parse the panoramic view of the photovoltaic power station, and realize the static verification of the consistency between the design data (design quantity and design inclination) and the physical data (actual quantity and actual inclination). By comparing the actual number D of photovoltaic components identified in the panoramic view of the photovoltaic power station and the actual inclination F with the design number K and the design inclination S respectively, the construction deviation in the photovoltaic power station can be accurately located. For example, the actual number is inconsistent with the design number, resulting in a construction deviation of missing components or over-allocation of components. For another example, the actual inclination is inconsistent with the design inclination, resulting in a construction deviation of abnormal inclination.
[0043] Specifically, the photovoltaic power station construction deviation verification device determines whether the actual inclination angle is the same as the designed inclination angle; if the actual inclination angle is not the same as the designed inclination angle, the photovoltaic power station construction deviation verification device determines the photovoltaic module inclination angle abnormality as the first construction deviation verification result of the photovoltaic power station. For example, the actual inclination angle F is not equal to the designed inclination angle S, that is, the construction deviation is determined to be an inclination abnormality.
[0044] Optionally, after determining whether the actual inclination angle is the same as the designed inclination angle, the method further includes:
[0045] If the actual inclination angle is the same as the design inclination angle, the photovoltaic power station construction deviation verification device determines whether the actual quantity is the same as the design quantity; if the actual quantity is different from the design quantity, the photovoltaic power station construction deviation verification device determines whether the actual quantity is less than the design quantity; if it is less, the photovoltaic power station construction deviation verification device determines the missing photovoltaic components as the first construction deviation verification result of the photovoltaic power station; if it is greater, the photovoltaic power station construction deviation verification device determines the over-allocation of photovoltaic components as the first construction deviation verification result of the photovoltaic power station.
[0046] For example, the actual inclination angle F is equal to the design inclination angle S. Continue to judge whether the actual quantity D is the same as the design quantity K. If the actual quantity D is not the same as the design quantity K, continue to compare the actual quantity D with the design quantity K. If the actual quantity D is less than the design quantity K, it means that the actual number of installed photovoltaic modules does not meet the design requirements, and the first construction deviation check result is missing photovoltaic modules. If the actual number D is greater than the design number K, it means that the actual number of installed photovoltaic modules exceeds the design requirements, and the first construction deviation check result is over-allocation of photovoltaic modules.
[0047] 205. If the conditions are met, a dynamic construction deviation check is performed on the photovoltaic power station to obtain a second construction deviation check result.
[0048] Specifically, the photovoltaic power station construction deviation verification device obtains the inverter design quantity, photovoltaic string design quantity, photovoltaic module rated voltage and the number of photovoltaic modules connected to the photovoltaic string in the photovoltaic power station from the construction design specification data; the photovoltaic power station construction deviation verification device obtains the operation data of the photovoltaic power station at the unobstructed moment, and the operation data includes multiple inverter powers, multiple inverter MPPT voltages and multiple photovoltaic string currents; the photovoltaic power station construction deviation verification device determines whether the actual number of inverters connected corresponding to the multiple inverter powers is the same as the inverter design quantity; if the actual number of inverters connected is not the same as the inverter design quantity, the photovoltaic power station construction deviation verification device determines the inverter missing as the second construction deviation verification result of the photovoltaic power station. Among them, the inverter design quantity in the photovoltaic power station is represented as L, the photovoltaic string design quantity is represented as M, the photovoltaic module rated voltage is represented as U and the number of photovoltaic modules connected to the photovoltaic string is represented as Q. The inverter power is represented as P i, the inverter MPPT voltage is expressed as V i and the photovoltaic string current is expressed as G i , where i represents the corresponding sequence number.
[0049] It should be noted that when the actual number and actual inclination of photovoltaic modules are the same as the designed number and designed inclination, respectively, it means that the installation specifications of the hardware are correct, and dynamic detection of the operating status is also required. For example, if the plug of the photovoltaic module is not tightly plugged in, it cannot be identified from the image, and a secondary judgment can only be made by collecting the operating data of the photovoltaic module (for example, string current, string power, string voltage, etc.). In the embodiment of the present application, the inverter is first verified, then the photovoltaic string is verified, and finally the photovoltaic module is verified. Under normal circumstances, an inverter will correspond to an inverter power point, and the inverter power P will be fed back to the upper level. i , where i represents the inverter number. When the number of inverter power points collected is C p It does not correspond to the actual number L of inverters, that is, an inverter is missing. Further, the missing inverter is accurately located according to the inverter number corresponding to the missing inverter power.
[0050] Optionally, after the photovoltaic power station construction deviation verification device determines whether the actual number of inverters connected corresponding to the power of multiple inverters is the same as the designed number of inverters, it also includes:
[0051] If the actual number of connected inverters is the same as the designed number of inverters, the photovoltaic power station construction deviation verification device determines whether the actual number of connected photovoltaic strings corresponding to multiple photovoltaic string currents is the same as the designed number of photovoltaic strings; if the actual number of connected photovoltaic strings is different from the designed number of photovoltaic strings, the photovoltaic power station construction deviation verification device determines the missing connection of photovoltaic strings as the second construction deviation verification result of the photovoltaic power station.
[0052] It should be noted that, under the premise that there is no abnormality in the inverter, continue to check the photovoltaic strings. Under normal circumstances, one inverter will correspond to multiple photovoltaic strings, and the photovoltaic string current is G i , where i represents the PV string number. When the number of collected PV string currents (i.e., the actual number of connected PV strings) does not correspond to the designed number of PV strings, that is, there are missing PV strings, further, the missing PV strings are accurately located according to the PV string numbers corresponding to the missing PV string currents.
[0053] Optionally, after the photovoltaic power station construction deviation verification device determines whether the actual number of photovoltaic strings connected corresponding to the currents of the plurality of photovoltaic strings is the same as the designed number of photovoltaic strings, the method further includes:
[0054] If the actual number of connected PV strings is the same as the designed number of PV strings, the PV power station construction deviation verification device determines whether the inverter MPPT voltage corresponding to each PV string is the same as the first product, where the first product is the product of the number of PV modules connected to each PV string and the rated voltage of the PV module; if the inverter MPPT voltage corresponding to each PV string is the same as the first product, the PV power station construction deviation verification device determines that there is no abnormality in the PV power station as the second construction deviation verification result of the PV power station; if the inverter MPPT voltage corresponding to any target PV string is different from the first product, the PV power station construction deviation verification device obtains Current data of each photovoltaic string in the target inverter corresponding to any target photovoltaic string within a preset time window; the photovoltaic power station construction deviation verification device determines the current and data of each photovoltaic string based on the current data of each photovoltaic string within the preset time window; determines the discrete coefficient corresponding to the target inverter based on the current and data; when the discrete coefficient is greater than the discrete threshold, the photovoltaic power station construction deviation verification device determines the photovoltaic component abnormality as the second construction deviation verification result of the photovoltaic power station; when the discrete coefficient is less than or equal to the discrete threshold, the photovoltaic power station construction deviation verification device determines the photovoltaic component missing connection as the second construction deviation verification result of the photovoltaic power station.
[0055] It should be noted that, under the premise that there are no abnormalities in the inverter and the photovoltaic string, the photovoltaic components continue to be checked. Under normal circumstances, a photovoltaic string will correspond to multiple photovoltaic components, and the rated voltage corresponding to each photovoltaic component is the same, expressed as U. The number of photovoltaic components connected to each photovoltaic string is set in advance, and Q is recorded. Then, in theory, the string voltage of a normal photovoltaic string should be U×Q, and the voltage of the photovoltaic string is equal to the MPPT voltage. When they are equal, it can be determined that the number of photovoltaic components in the photovoltaic string is correct and the photovoltaic power station is normal; when they are not equal, determine the inverter corresponding to the unequal photovoltaic string, re-acquire the photovoltaic string current data of the inverter within a certain period of time, and determine the discrete coefficient of the inverter through the preset discrete formula. According to the discrete coefficient, determine whether the output of each photovoltaic component in the photovoltaic string is consistent. If the discrete coefficient of the inverter is greater than the discrete threshold, it indicates that the output of the photovoltaic components in the inverter is inconsistent, indicating that the photovoltaic components are abnormal. If the discrete coefficient of the inverter is less than the discrete threshold, it indicates that the output of the photovoltaic components in the inverter is consistent, indicating that the photovoltaic components are missing.
[0056] In the embodiment of the present application, the panoramic view of the photovoltaic power station and the construction design specification data are statically checked for construction deviations through an image recognition algorithm to obtain a first construction deviation verification result. After the first construction deviation verification result indicates that the photovoltaic power station has passed the hardware verification, the operation data of the photovoltaic power station is dynamically verified, which comprehensively covers the entire photovoltaic power station construction cycle from design to operation, and timely discovers potential faults such as inverter missing connection, string missing connection or component missing connection, promotes timely maintenance, and ensures long-term stable operation of the power station, which not only improves the reliability and efficiency of the power station operation, but also simplifies the maintenance process and reduces the operating cost. It is also applicable to photovoltaic power stations of different scales and terrains, and has wide applicability and promotion value.
[0057] The photovoltaic power station construction deviation verification method in the embodiment of the present application is described above. The photovoltaic power station construction deviation verification device in the embodiment of the present application is described below. Figure 3 , an embodiment of the photovoltaic power station construction deviation verification device in the embodiment of the present application includes:
[0058] The first acquisition module 301 is used for acquiring the construction design specification data and the panoramic view of the photovoltaic power station in the photovoltaic power station, wherein the construction design specification data includes the design quantity and design inclination angle of the photovoltaic modules;
[0059] The parsing module 302 is used to parse the panoramic view of the photovoltaic power station to obtain the actual number and actual inclination angle of the photovoltaic modules in the photovoltaic power station;
[0060] The verification module 303 is used to perform a construction deviation verification on the photovoltaic power station based on the actual quantity, the actual inclination angle, the designed quantity and the designed inclination angle to obtain a construction deviation verification result.
[0061] In a feasible implementation manner, the verification module 303 includes:
[0062] A judging unit 3031 is used to judge whether the actual number, the actual inclination angle, the designed number and the designed inclination angle meet a preset static construction deviation verification condition, wherein the static construction deviation verification condition is that the actual number is equal to the designed number and the actual inclination angle is equal to the designed inclination angle;
[0063] A determining unit 3032 is configured to determine a first construction deviation verification result based on the actual quantity and the actual inclination angle if the condition is not satisfied, wherein the first verification result is any one of an abnormal inclination angle, a missing component, and an over-allocation of a component;
[0064] The dynamic verification unit 3033 is used to perform a dynamic construction deviation verification on the photovoltaic power station if the conditions are met, and obtain a second construction deviation verification result.
[0065] In a feasible implementation manner, the determining unit 3032 is specifically configured to:
[0066] Determining whether the actual inclination angle is the same as the designed inclination angle;
[0067] If the actual inclination angle is different from the designed inclination angle, the abnormal inclination angle of the photovoltaic module is determined as the first construction deviation verification result of the photovoltaic power station.
[0068] In a feasible implementation manner, the determining unit 3032 is further specifically configured to:
[0069] If the actual inclination angle is the same as the designed inclination angle, determining whether the actual number is the same as the designed number;
[0070] If the actual quantity is different from the designed quantity, determining whether the actual quantity is less than the designed quantity;
[0071] If it is less than, the missing photovoltaic component is determined as the first construction deviation verification result of the photovoltaic power station;
[0072] If it is greater, the over-allocation of the photovoltaic components is determined as the first construction deviation verification result of the photovoltaic power station.
[0073] In a feasible implementation manner, the dynamic verification unit 3033 is specifically used for:
[0074] Obtaining the designed number of inverters, the designed number of photovoltaic strings, the rated voltage of photovoltaic modules, and the number of photovoltaic modules connected to the photovoltaic strings in the photovoltaic power station from the construction design specification data;
[0075] Acquire operation data of the photovoltaic power station at an unobstructed moment, the operation data including multiple inverter powers, multiple inverter MPPT voltages, and multiple photovoltaic string currents;
[0076] Determining whether the actual number of inverters connected corresponding to the powers of the multiple inverters is the same as the designed number of inverters;
[0077] If the actual connected number of the inverters is different from the designed number of the inverters, inverter missing is determined as the second construction deviation verification result of the photovoltaic power station.
[0078] In a feasible implementation manner, the dynamic verification unit 3033 is further specifically used for:
[0079] If the actual number of connected inverters is the same as the designed number of inverters, determining whether the actual number of connected photovoltaic strings corresponding to the multiple photovoltaic string currents is the same as the designed number of photovoltaic strings;
[0080] If the actual number of connected photovoltaic strings is different from the designed number of photovoltaic strings, a missing connection of photovoltaic strings is determined as a second construction deviation verification result of the photovoltaic power station.
[0081] In a feasible implementation manner, the dynamic verification unit 3033 is further specifically used for:
[0082] If the actual number of connected photovoltaic strings is the same as the designed number of photovoltaic strings, then determining whether the inverter MPPT voltage corresponding to each photovoltaic string is the same as the first product, where the first product is the product of the number of photovoltaic modules connected to each photovoltaic string and the rated voltage of the photovoltaic module;
[0083] If the inverter MPPT voltage corresponding to each photovoltaic string is the same as the first product, then determining that the photovoltaic power station has no abnormality is the second construction deviation verification result of the photovoltaic power station;
[0084] If the inverter MPPT voltage corresponding to any target photovoltaic string is different from the first product, then obtaining current data of each photovoltaic string in the target inverter corresponding to the any target photovoltaic string within a preset time window;
[0085] Determining the current and data of each photovoltaic string based on the current data of each photovoltaic string within a preset time window;
[0086] Determining a discrete coefficient corresponding to the target inverter based on the current and the data;
[0087] When the discrete coefficient is greater than the discrete threshold, the photovoltaic component abnormality is determined as the second construction deviation verification result of the photovoltaic power station;
[0088] When the discrete coefficient is less than or equal to the discrete threshold, the photovoltaic component missing connection is determined as the second construction deviation verification result of the photovoltaic power station.
[0089] In the embodiment of the present application, the panoramic view of the photovoltaic power station and the construction design specification data are statically checked for construction deviations through an image recognition algorithm to obtain a first construction deviation verification result. After the first construction deviation verification result indicates that the photovoltaic power station has passed the hardware verification, the operation data of the photovoltaic power station is dynamically verified, which comprehensively covers the entire photovoltaic power station construction cycle from design to operation, and timely discovers potential faults such as inverter missing connection, string missing connection or component missing connection, promotes timely maintenance, and ensures long-term stable operation of the power station, which not only improves the reliability and efficiency of the power station operation, but also simplifies the maintenance process and reduces the operating cost. It is also applicable to photovoltaic power stations of different scales and terrains, and has wide applicability and promotion value.
[0090] See also Figure 4As shown, the electronic device includes a processor 400 and a memory 401 , wherein the memory 401 stores machine executable instructions that can be executed by the processor 400 , and the processor 400 executes the machine executable instructions to implement the above-mentioned photovoltaic power station construction deviation verification method.
[0091] Further, Figure 4 The electronic device shown further includes a bus 402 and a communication interface 403 , and the processor 400 , the communication interface 403 and the memory 401 are connected via the bus 402 .
[0092] The memory 401 may include a high-speed random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), for example, at least one disk storage. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 403 (which may be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. may be used. The bus 402 may be an ISA bus, a PCI bus, or an EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 4 Only one bidirectional arrow is used in the diagram, but this does not mean that there is only one bus or only one type of bus.
[0093] The processor 400 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 400. The above processor 400 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as a hardware decoding processor to be executed, or the hardware and software modules in the decoding processor can be executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 401 , and the processor 400 reads the information in the memory 401 and completes the method steps of the above-mentioned embodiment in combination with its hardware.
[0094] The present application also provides a computer-readable storage medium, which may be a non-volatile computer-readable storage medium or a volatile computer-readable storage medium. The computer-readable storage medium stores instructions. When the instructions are executed on a computer, the computer executes the steps of the photovoltaic power station construction deviation verification method, which specifically include:
[0095] Acquire construction design specification data and a panoramic view of the photovoltaic power station, wherein the construction design specification data includes the design quantity and design inclination of photovoltaic components; parse the panoramic view of the photovoltaic power station to obtain the actual quantity and actual inclination of photovoltaic components in the photovoltaic power station; perform construction deviation verification on the photovoltaic power station based on the actual quantity, actual inclination, design quantity and design inclination to obtain a construction deviation verification result. In the embodiment of the present application, a panoramic view of the photovoltaic power station is verified against the construction design specification data through an image recognition algorithm to obtain a construction deviation verification result, which can accurately identify construction deviations of abnormal inclination, missing components and over-allocation of components, significantly improve verification efficiency, and reduce human errors.
[0096] The above-mentioned construction deviation verification of the photovoltaic power station based on the actual quantity, actual inclination, design quantity and design inclination obtains the construction deviation verification result, including: judging whether the actual quantity, actual inclination, design quantity and design inclination meet the preset static construction deviation verification conditions, the static construction deviation verification conditions are that the actual quantity is equal to the design quantity, and the actual inclination is equal to the design inclination; if not, determining the first construction deviation verification result based on the actual quantity and the actual inclination, the first verification result is any one of abnormal inclination, missing components and over-allocation of components; if satisfied, performing dynamic construction deviation verification on the photovoltaic power station to obtain the second construction deviation verification result.
[0097] The above-mentioned determination of the first construction deviation verification result based on the actual quantity and the actual inclination angle includes: judging whether the actual inclination angle is the same as the designed inclination angle; if the actual inclination angle is different from the designed inclination angle, determining the abnormal inclination angle of the photovoltaic module as the first construction deviation verification result of the photovoltaic power station.
[0098] After determining whether the actual inclination angle is the same as the designed inclination angle, the above also includes: if the actual inclination angle is the same as the designed inclination angle, determining whether the actual quantity is the same as the designed quantity; if the actual quantity is different from the designed quantity, determining whether the actual quantity is less than the designed quantity; if it is less than, determining the missing photovoltaic components as the first construction deviation verification result of the photovoltaic power station; if it is greater than, determining the over-allocation of photovoltaic components as the first construction deviation verification result of the photovoltaic power station.
[0099] The above-mentioned dynamic construction deviation check of the photovoltaic power station is performed to obtain a second construction deviation check result, including: obtaining the design number of inverters, the design number of photovoltaic strings, the rated voltage of photovoltaic modules and the number of photovoltaic modules connected to the photovoltaic strings in the photovoltaic power station from the construction design specification data;
[0100] Obtain the operating data of the PV power station at the unobstructed moment, the operating data including multiple inverter powers, multiple inverter MPPT voltages and multiple PV string currents; determine whether the actual number of inverters connected corresponding to the multiple inverter powers is the same as the designed number of inverters; if the actual number of inverters connected is different from the designed number of inverters, the inverter missing is determined as the second construction deviation verification result of the PV power station.
[0101] After determining whether the actual number of inverters connected corresponding to the powers of multiple inverters is the same as the designed number of inverters, the above also includes: if the actual number of inverters connected is the same as the designed number of inverters, then determining whether the actual number of photovoltaic strings connected corresponding to the currents of multiple photovoltaic strings is the same as the designed number of photovoltaic strings; if the actual number of photovoltaic strings connected is different from the designed number of photovoltaic strings, then determining the missing connection of the photovoltaic strings as the second construction deviation verification result of the photovoltaic power station.
[0102] After determining whether the actual number of photovoltaic strings connected to the currents of multiple photovoltaic strings is the same as the designed number of photovoltaic strings, the above method further includes: if the actual number of photovoltaic strings connected is the same as the designed number of photovoltaic strings, determining whether the inverter MPPT voltage corresponding to each photovoltaic string is the same as the first product, the first product being the product of the number of photovoltaic modules connected to each photovoltaic string and the rated voltage of the photovoltaic module; if the inverter MPPT voltage corresponding to each photovoltaic string is the same as the first product, determining that the photovoltaic power station has no abnormality as the second construction deviation verification result of the photovoltaic power station; if the inverter MPPT voltage corresponding to any target photovoltaic string is not the same as the first product, obtaining the current data of each photovoltaic string in the target inverter corresponding to any target photovoltaic string within a preset time window; determining the current and data of each photovoltaic string based on the current data of each photovoltaic string within the preset time window; determining the discrete coefficient corresponding to the target inverter based on the current and data; when the discrete coefficient is greater than the discrete threshold, determining the abnormality of the photovoltaic module as the second construction deviation verification result of the photovoltaic power station; when the discrete coefficient is less than or equal to the discrete threshold, determining the missing connection of the photovoltaic module as the second construction deviation verification result of the photovoltaic power station.
[0103] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.
[0104] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.
[0105] In the description of the present application, the terms “first”, “second” and “third” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.
[0106] Finally, it should be noted that the above embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art who is familiar with the technical field can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.
Claims
1. A photovoltaic power station construction deviation verification method, characterized in that: include: Acquire construction design specification data and a panoramic view of the photovoltaic power station in the photovoltaic power station, wherein the construction design specification data includes the design quantity and design inclination angle of photovoltaic modules; Analyze the panoramic view of the photovoltaic power station to obtain the actual number and actual inclination angle of photovoltaic modules in the photovoltaic power station; A construction deviation check is performed on the photovoltaic power station based on the actual quantity, the actual inclination angle, the designed quantity and the designed inclination angle to obtain a construction deviation check result.
2. The photovoltaic power station construction deviation verification method according to claim 1, characterized in that: The performing construction deviation verification on the photovoltaic power station based on the actual quantity, the actual inclination angle, the designed quantity and the designed inclination angle to obtain a construction deviation verification result includes: Determine whether the actual number, the actual inclination, the designed number and the designed inclination meet a preset static construction deviation verification condition, wherein the static construction deviation verification condition is that the actual number is equal to the designed number and the actual inclination is equal to the designed inclination; If not satisfied, determining a first construction deviation verification result based on the actual quantity and the actual inclination angle, the first verification result being any one of an abnormal inclination angle, component missing, and component over-allocation; If the conditions are met, a dynamic construction deviation check is performed on the photovoltaic power station to obtain a second construction deviation check result.
3. The photovoltaic power station construction deviation verification method according to claim 2, characterized in that: The determining a first construction deviation verification result based on the actual quantity and the actual inclination angle comprises: Determining whether the actual inclination angle is the same as the designed inclination angle; If the actual inclination angle is different from the designed inclination angle, the abnormal inclination angle of the photovoltaic module is determined as the first construction deviation verification result of the photovoltaic power station.
4. The photovoltaic power station construction deviation verification method according to claim 3 is characterized in that: After determining whether the actual inclination angle is the same as the designed inclination angle, the method further includes: If the actual inclination angle is the same as the designed inclination angle, determining whether the actual number is the same as the designed number; If the actual quantity is different from the designed quantity, determining whether the actual quantity is less than the designed quantity; If it is less than, the missing photovoltaic component is determined as the first construction deviation verification result of the photovoltaic power station; If it is greater, the over-allocation of the photovoltaic components is determined as the first construction deviation verification result of the photovoltaic power station.
5. The photovoltaic power station construction deviation verification method according to claim 2, characterized in that: The performing dynamic construction deviation verification on the photovoltaic power station to obtain a second construction deviation verification result includes: Obtaining the designed number of inverters, the designed number of photovoltaic strings, the rated voltage of photovoltaic modules, and the number of photovoltaic modules connected to the photovoltaic strings in the photovoltaic power station from the construction design specification data; Acquire operation data of the photovoltaic power station at an unobstructed moment, the operation data including multiple inverter powers, multiple inverter MPPT voltages, and multiple photovoltaic string currents; Determining whether the actual number of inverters connected corresponding to the powers of the multiple inverters is the same as the designed number of inverters; If the actual connected number of the inverters is different from the designed number of the inverters, inverter missing is determined as the second construction deviation verification result of the photovoltaic power station.
6. The photovoltaic power station construction deviation verification method according to claim 5, characterized in that: After determining whether the actual number of connected inverters corresponding to the powers of the multiple inverters is the same as the designed number of inverters, the method further includes: If the actual number of connected inverters is the same as the designed number of inverters, determining whether the actual number of connected photovoltaic strings corresponding to the multiple photovoltaic string currents is the same as the designed number of photovoltaic strings; If the actual number of connected photovoltaic strings is different from the designed number of photovoltaic strings, a missing connection of photovoltaic strings is determined as a second construction deviation verification result of the photovoltaic power station.
7. The photovoltaic power station construction deviation verification method according to claim 6, characterized in that: After determining whether the actual number of photovoltaic strings connected to the photovoltaic strings corresponding to the currents of the plurality of photovoltaic strings is the same as the designed number of photovoltaic strings, the method further includes: If the actual number of connected photovoltaic strings is the same as the designed number of photovoltaic strings, then determining whether the inverter MPPT voltage corresponding to each photovoltaic string is the same as the first product, where the first product is the product of the number of photovoltaic modules connected to each photovoltaic string and the rated voltage of the photovoltaic module; If the inverter MPPT voltage corresponding to each photovoltaic string is the same as the first product, then determining that the photovoltaic power station has no abnormality is the second construction deviation verification result of the photovoltaic power station; If the inverter MPPT voltage corresponding to any target photovoltaic string is different from the first product, then obtaining current data of each photovoltaic string in the target inverter corresponding to the any target photovoltaic string within a preset time window; Determining the current and data of each photovoltaic string based on the current data of each photovoltaic string within a preset time window; Determining a discrete coefficient corresponding to the target inverter based on the current and the data; When the discrete coefficient is greater than the discrete threshold, the photovoltaic component abnormality is determined as the second construction deviation verification result of the photovoltaic power station; When the discrete coefficient is less than or equal to the discrete threshold, the photovoltaic component missing connection is determined as the second construction deviation verification result of the photovoltaic power station.
8. A photovoltaic power station construction deviation verification device, characterized in that: include: An acquisition module is used to acquire construction design specification data and a panoramic view of the photovoltaic power station in the photovoltaic power station, wherein the construction design specification data includes the design quantity and design inclination angle of the photovoltaic modules; An analysis module is used to analyze the panoramic view of the photovoltaic power station to obtain the actual number and actual inclination angle of photovoltaic modules in the photovoltaic power station; The verification module is used to perform a construction deviation verification on the photovoltaic power station based on the actual quantity, the actual inclination angle, the designed quantity and the designed inclination angle to obtain a construction deviation verification result.
9. An electronic device, characterized in that: The electronic device comprises: a memory and at least one processor, the memory stores instructions, and the memory and the at least one processor are interconnected via a line; The at least one processor calls the instruction in the memory so that the electronic device executes the photovoltaic power station construction deviation verification method as described in any one of claims 1-7.
10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions, and when the instructions are executed by the processor, the photovoltaic power station construction deviation verification method as described in any one of claims 1 to 7 is implemented.