Evaluation method and device for generating capacity, electronic equipment and computer program product

Abstract

The invention relates to a generating capacity evaluation method and device, electronic equipment and a computer program product, and belongs to the technical field of ocean monitoring. The method comprises the following steps: acquiring the actual generating capacity of a land field area and the actual generating capacity of an offshore photovoltaic field area in a preset monitoring time period; a sea-land power generation conversion factor between the power generation amount of the land field area and the power generation amount of the offshore photovoltaic field area is obtained, wherein the sea-land power generation conversion factor is the power generation amount proportion of the land field area and the offshore photovoltaic field area under the same illumination condition; according to the actual power generation amount of the land field area and the sea-land power generation conversion factor, the theoretical power generation amount of the offshore photovoltaic field area is obtained through prediction; and according to the actual power generation amount and the theoretical power generation amount of the offshore photovoltaic field area, evaluating the power generation condition of the offshore photovoltaic field area. The offshore photovoltaic theoretical generating capacity can be accurately predicted or evaluated, and the actual generating condition of the offshore photovoltaic theoretical generating capacity can be accurately evaluated.

Description

Technical Field

[0001] The present disclosure relates to the field of ocean monitoring technology, and in particular to a method for evaluating power generation, a device for evaluating power generation, an electronic device, and a computer program product. Background Art

[0002] Offshore photovoltaics differ significantly from conventional terrestrial photovoltaic projects, with more factors influencing their efficiency. Therefore, it's essential to evaluate their power generation during operation. Currently, there's no established theoretical method for calculating power generation for offshore photovoltaic projects.

[0003] In view of this, there is an urgent need in this field for an evaluation method for offshore photovoltaic power generation, which can accurately predict the theoretical power generation of offshore photovoltaics and then accurately evaluate the actual power generation status of offshore photovoltaics.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the Invention

[0005] The purpose of the present disclosure is to provide a power generation evaluation method, power generation evaluation device, electronic equipment and computer program product, which can accurately predict the theoretical power generation of offshore photovoltaics to a certain extent, and then accurately evaluate the actual power generation status of offshore photovoltaics.

[0006] According to a first aspect of the present disclosure, there is provided a method for evaluating power generation, comprising:

[0007] Obtain the actual power generation of the land site and the actual power generation of the offshore photovoltaic site within the preset monitoring time period;

[0008] Obtaining a land-sea power generation conversion factor between the power generation of the land area and the power generation of the offshore photovoltaic area, wherein the land-sea power generation conversion factor is a ratio of the power generation of the land area to the power generation of the offshore photovoltaic area under the same lighting conditions;

[0009] Predicting the theoretical power generation of the offshore photovoltaic area based on the actual power generation of the land area and the land-sea power generation conversion factor;

[0010] The power generation status of the offshore photovoltaic area is evaluated based on the actual power generation of the offshore photovoltaic area and the theoretical power generation.

[0011] In an exemplary embodiment of the present disclosure, obtaining the land-sea power generation conversion factor between the power generation of the land site and the offshore photovoltaic site includes:

[0012] Obtaining historical illumination data and historical power generation of the land site and the offshore photovoltaic site during each historical monitoring time period;

[0013] The sea-land power generation conversion factor is obtained according to the historical illumination data and the historical power generation.

[0014] In an exemplary embodiment of the present disclosure, obtaining the sea-to-land power generation conversion factor based on the historical illumination data and the historical power generation includes:

[0015] Obtaining, according to the historical illumination data, illumination ratios of the land site and the offshore photovoltaic site during each historical monitoring period;

[0016] Obtaining a reference power generation of the land area in each of the historical monitoring time periods according to the historical power generation of the land area and the sunlight ratio;

[0017] Obtaining historical power generation conversion factors of the land site and the offshore photovoltaic site during each of the historical monitoring time periods based on the reference power generation of the land site and the historical power generation of the offshore photovoltaic site;

[0018] The sea-land power generation conversion factor is obtained according to the historical power generation conversion factors in each of the historical monitoring time periods.

[0019] In an exemplary embodiment of the present disclosure, the method further includes:

[0020] The sea-to-land power generation conversion factor is adjusted according to the real-time environmental parameters of the offshore photovoltaic field within the preset monitoring time period.

[0021] In an exemplary embodiment of the present disclosure, obtaining the actual power generation of the land site and the actual power generation of the offshore photovoltaic site within a preset monitoring time period includes:

[0022] Arrange solar radiation monitoring stations in the offshore photovoltaic field and the land field respectively;

[0023] obtaining radiation observation parameters of the land area and the offshore photovoltaic area within the preset monitoring time period respectively through solar radiation monitoring stations arranged in the offshore photovoltaic area and the land area;

[0024] The actual power generation of the land area and the offshore photovoltaic area is obtained according to the radiation observation parameters.

[0025] In an exemplary embodiment of the present disclosure, obtaining the actual power generation of the land area according to the radiation observation parameter includes:

[0026] Obtaining the sunshine hours of the land area within the preset monitoring time period from the radiation observation parameters;

[0027] According to the conventional radiation observation value and the benchmark radiation observation in the radiation observation parameters, as well as the sunshine hours and effective area of the land area, the actual power generation of the land area during the preset monitoring time period is obtained.

[0028] In an exemplary embodiment of the present disclosure, obtaining the sunshine hours of the land area within the preset monitoring time period from the radiation observation parameters includes:

[0029] According to the direct radiation value, the global radiation value or the scattered radiation value in the radiation observation parameters, the sunshine hours of the land area in the preset monitoring time period are obtained.

[0030] In an exemplary embodiment of the present disclosure, obtaining the actual power generation of the offshore photovoltaic field according to the radiation observation parameters includes:

[0031] Obtaining the sunshine hours of the offshore photovoltaic field within the preset monitoring time period from the radiation observation parameters;

[0032] According to the conventional radiation observation value and the benchmark radiation observation in the radiation observation parameters, and the sunshine hours and effective area of the offshore photovoltaic field, the actual power generation of the offshore photovoltaic field in the preset monitoring time period is obtained.

[0033] In an exemplary embodiment of the present disclosure, the evaluating the power generation status of the offshore photovoltaic area according to the actual power generation of the offshore photovoltaic area and the theoretical power generation includes:

[0034] Calculating a power generation performance ratio and a power generation deviation rate of the offshore photovoltaic area according to the actual power generation of the offshore photovoltaic area and the theoretical power generation;

[0035] The power generation status of the offshore photovoltaic field is evaluated according to the power generation performance ratio and the power generation deviation rate.

[0036] According to a second aspect of the present disclosure, there is provided a device for evaluating power generation, comprising:

[0037] The actual power generation acquisition module is used to obtain the actual power generation of the land site and the actual power generation of the offshore photovoltaic site within a preset monitoring time period;

[0038] a conversion factor acquisition module, configured to acquire a land-sea power generation conversion factor between the power generation of the land area and the power generation of the offshore photovoltaic area, wherein the land-sea power generation conversion factor is a ratio of the power generation of the land area to the power generation of the offshore photovoltaic area under the same lighting conditions;

[0039] a theoretical power generation prediction module, configured to predict the theoretical power generation of the offshore photovoltaic area based on the actual power generation of the land area and the land-sea power generation conversion factor;

[0040] The power generation status evaluation module is used to evaluate the power generation status of the offshore photovoltaic area according to the actual power generation of the offshore photovoltaic area and the theoretical power generation.

[0041] According to a third aspect of the present disclosure, an electronic device is provided, comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to execute any one of the above-mentioned methods for evaluating power generation by executing the executable instructions.

[0042] According to a fourth aspect of the present disclosure, a computer program product is provided, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements any one of the above-mentioned methods for evaluating power generation.

[0043] The exemplary embodiments of the present disclosure may have the following beneficial effects:

[0044] In the power generation evaluation method of the example embodiment of the present disclosure, the actual power generation of the land area and the actual power generation of the offshore photovoltaic area within a preset monitoring time period, as well as the land-sea power generation conversion factor between the power generation of the land area and the offshore photovoltaic area, are obtained, and based on the actual power generation of the land area and the land-sea power generation conversion factor, the theoretical power generation of the offshore photovoltaic area is predicted, and then the power generation status of the offshore photovoltaic area is evaluated based on the actual power generation and theoretical power generation of the offshore photovoltaic area. The power generation evaluation method of the example embodiment of the present disclosure, on the one hand, in view of the complex environmental conditions of offshore photovoltaics, can accurately predict or evaluate the theoretical power generation of offshore photovoltaics by comparing and analyzing its actual power generation with the monitoring data on land, combined with the land-sea power generation conversion factor; on the other hand, by evaluating the difference between the actual power generation and the theoretical power generation of the offshore photovoltaic area, and then accurately evaluating its actual power generation status, it can determine whether there is any abnormality in the actual power generation status.

[0045] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0047] Figure 1 A schematic flow chart illustrating a method for evaluating power generation according to an exemplary embodiment of the present disclosure;

[0048] Figure 2 A schematic diagram showing a process of obtaining actual power generation according to an exemplary embodiment of the present disclosure is shown;

[0049] Figure 3 A schematic diagram showing a process of obtaining actual power generation of a land area according to an exemplary embodiment of the present disclosure is shown;

[0050] Figure 4 A schematic diagram of a process for obtaining a sea-land power generation conversion factor according to an exemplary embodiment of the present disclosure is shown;

[0051] Figure 5 A schematic diagram illustrating a process for calculating a sea-to-land power generation conversion factor based on historical sunlight data and historical power generation according to an exemplary embodiment of the present disclosure is shown;

[0052] Figure 6 A block diagram showing an apparatus for evaluating power generation according to an exemplary embodiment of the present disclosure;

[0053] Figure 7 A schematic structural diagram of a computer system suitable for implementing the electronic device according to the embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0054] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the present disclosure will be more comprehensive and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced while omitting one or more of the specific details, or that other methods, components, devices, steps, etc. may be employed. In other cases, well-known technical solutions are not shown or described in detail to avoid obscuring various aspects of the present disclosure.

[0055] In addition, the accompanying drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. Identical reference numerals in the figures denote identical or similar parts, and thus repetitive descriptions thereof will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities that do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0056] Solar radiation intensity, temperature, cloud cover, seawater salinity, and waves are all key factors affecting the performance of photovoltaic panels. Due to the characteristics of the marine climate, cloud cover and the presence of fog can significantly reduce the intensity of solar radiation, thereby affecting the power generation efficiency of photovoltaic panels. Rising seawater temperatures can cause panels to overheat, reducing their efficiency. High salinity can accelerate the corrosion of system components and damage the anti-reflective coating on the panel surface, affecting the performance and lifespan of the panels. Humidity can increase contamination of the panel surface, reducing its efficiency, and can also cause corrosion of electrical interfaces, increasing the risk of system failure.

[0057] This exemplary embodiment first provides a method for evaluating power generation. Figure 1 As shown, the above power generation evaluation method may include the following steps:

[0058] Step S110: Obtain the actual power generation of the land site and the actual power generation of the offshore photovoltaic site within a preset monitoring time period.

[0059] Step S120: Obtain a land-sea power generation conversion factor between the power generation of the land site and the offshore photovoltaic site. The land-sea power generation conversion factor is the ratio of the power generation of the land site and the offshore photovoltaic site under the same lighting conditions.

[0060] Step S130: Based on the actual power generation of the land area and the land-sea power generation conversion factor, the theoretical power generation of the offshore photovoltaic area is predicted.

[0061] Step S140: Evaluate the power generation status of the offshore photovoltaic field based on the actual power generation and theoretical power generation of the offshore photovoltaic field.

[0062] In the power generation evaluation method of the example embodiment of the present disclosure, the actual power generation of the land area and the actual power generation of the offshore photovoltaic area within a preset monitoring time period, as well as the land-sea power generation conversion factor between the power generation of the land area and the offshore photovoltaic area, are obtained, and based on the actual power generation of the land area and the land-sea power generation conversion factor, the theoretical power generation of the offshore photovoltaic area is predicted, and then the power generation status of the offshore photovoltaic area is evaluated based on the actual power generation and theoretical power generation of the offshore photovoltaic area. The power generation evaluation method of the example embodiment of the present disclosure, on the one hand, in view of the complex environmental conditions of offshore photovoltaics, can accurately predict or evaluate the theoretical power generation of offshore photovoltaics by comparing and analyzing its actual power generation with the monitoring data on land, combined with the land-sea power generation conversion factor; on the other hand, by evaluating the difference between the actual power generation and the theoretical power generation of the offshore photovoltaic area, and then accurately evaluating its actual power generation status, it can determine whether there is any abnormality in the actual power generation status.

[0063] Next, combine Figures 2 to 5 The above steps of this exemplary embodiment are described in more detail.

[0064] In step S110 , the actual power generation of the land site and the actual power generation of the offshore photovoltaic site within a preset monitoring time period are obtained.

[0065] In this example embodiment, the land area and the offshore photovoltaic area are solar power generation areas on land and at sea, respectively. Photovoltaic is the abbreviation of solar photovoltaic power generation system, which is a new power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy.

[0066] In this example implementation, Figure 2 As shown, obtaining the actual power generation of the land site and the actual power generation of the offshore photovoltaic site within a preset monitoring time period may specifically include the following steps:

[0067] Step S210: Arrange solar radiation monitoring stations in the offshore photovoltaic field and the land field respectively.

[0068] In this exemplary embodiment, solar radiation monitoring stations may be deployed in the offshore photovoltaic area and the land area, respectively, for data collection and comparative analysis.

[0069] Step S220: Obtain radiation observation parameters of the land area and the offshore photovoltaic area within a preset monitoring time period through solar radiation monitoring stations arranged in the offshore photovoltaic area and the land area.

[0070] Solar radiation monitoring stations can be used to obtain radiation observation parameters for land and offshore photovoltaic sites. These parameters include conventional radiation observation parameters and benchmark radiation observation parameters. Conventional radiation observation parameters include global radiation, direct radiation, diffuse radiation, reflected radiation, longwave radiation, and net total radiation. Benchmark radiation observation parameters include global radiation, direct radiation, diffuse radiation, reflected radiation, ultraviolet radiation, longwave radiation, and photosynthetically active radiation.

[0071] Step S230: Obtain the actual power generation of the land site and the offshore photovoltaic site based on the radiation observation parameters.

[0072] In this example implementation, Figure 3 As shown in Figure 2, the actual power generation of the land area can be obtained based on the radiation observation parameters, which can specifically include the following steps:

[0073] Step S310: Obtain the sunshine hours of the land area within a preset monitoring time period from the radiation observation parameters.

[0074] In this example implementation, the sunshine hours of the land area within a preset monitoring time period can be obtained based on the direct radiation value, the global radiation value, or the scattered radiation value in the radiation observation parameters.

[0075] Sunshine hours refer to the effective sunshine time within the preset monitoring period. Sunshine hours can be calculated using direct radiation, global radiation, and diffuse radiation values.

[0076] For example, the time when the total radiation value is greater than or equal to a certain threshold can be accumulated to obtain the sunshine hours in a preset monitoring time period, and the unit of sunshine hours can be hours.

[0077] Step S320: According to the conventional radiation observation value and the benchmark radiation observation in the radiation observation parameters, as well as the sunshine hours and effective area of the land area, the actual power generation of the land area within the preset monitoring time period is obtained.

[0078] All radiation in the conventional radiation observation parameters and the benchmark radiation observation parameters are measured continuously, and the output is the irradiance per minute, the irradiance extreme value per hour and its occurrence time, the average irradiance within a certain period of time, and the exposure amount. The average irradiance has 1 minute and 1 hour values, and the unit in the observation record is watts per square meter (W / m 2 ), rounded to an integer. The exposure has 1-hour and daily values, and the unit in the observation record is megajoule per square meter (MJ / m 2 ), can take two decimal places.

[0079] In this example implementation, the number of sunshine hours for an offshore photovoltaic site within a preset monitoring period can be obtained from radiation observation parameters. The actual power generation of the offshore photovoltaic site within the preset monitoring period can be determined based on the conventional radiation observation values and baseline radiation observations in the radiation observation parameters, as well as the sunshine hours and effective area of the offshore photovoltaic site. The specific method for obtaining the actual power generation of an offshore photovoltaic site is similar to that for land sites and will not be further described here.

[0080] In step S120, a land-sea power generation conversion factor between the power generation of the land area and the offshore photovoltaic area is obtained. The land-sea power generation conversion factor is the power generation ratio of the land area and the offshore photovoltaic area under the same lighting conditions.

[0081] In this exemplary embodiment, considering the difference between the offshore and land environments, a parameter of the sea-land power generation conversion factor can be set to represent the difference or ratio of luminous intensity between the offshore and land environments under the same lighting conditions.

[0082] In this example implementation, Figure 4 As shown, obtaining the land-sea power conversion factor between the power generation of the land site and the offshore photovoltaic site can specifically include the following steps:

[0083] Step S410: Obtain historical illumination data and historical power generation of the land site and the offshore photovoltaic site in each historical monitoring time period.

[0084] Step S420: Obtain the sea-land power generation conversion factor based on the historical illumination data and the historical power generation.

[0085] In this example implementation, the land-sea conversion factor can be calculated by comparing the historical illumination data and historical power generation of the land and offshore photovoltaic areas. Figure 5 As shown in the figure, based on historical sunlight data and historical power generation, the conversion factor of land-sea power generation is obtained, which can be specifically obtained by the following steps:

[0086] Step S510: Obtain the illumination ratios of the land site and the offshore photovoltaic site in each historical monitoring time period based on the historical illumination data.

[0087] First, based on the ratio of the historical illumination data of the land site and the historical illumination data of the offshore photovoltaic site, the illumination ratio of the land site and the offshore photovoltaic site in each historical monitoring period can be obtained.

[0088] Step S520: Obtain reference power generation of the land area in each historical monitoring time period according to the historical power generation and sunlight ratio of the land area.

[0089] The reference power generation of the land site during each historical monitoring period can be obtained by multiplying the historical power generation of the land site by the sunlight ratio. The reference power generation can be understood as the historical power generation of the land site under the same sunlight conditions.

[0090] Step S530: Based on the reference power generation of the land site and the historical power generation of the offshore photovoltaic site, obtain the historical power generation conversion factors of the land site and the offshore photovoltaic site in each historical monitoring time period.

[0091] Based on the ratio of the reference power generation of the land site to the historical power generation of the offshore photovoltaic site, the historical power generation conversion factors of the land site and the offshore photovoltaic site in each historical monitoring period can be obtained.

[0092] Step S540: Obtain the sea-land power generation conversion factor based on the historical power generation conversion factors in each historical monitoring time period.

[0093] Finally, the sea-land power conversion factor can be obtained based on the contemporaneous mean or weighted average of the historical power conversion factors in each historical monitoring period.

[0094] In this exemplary embodiment, the sea-to-land power generation conversion factor may also be adjusted based on the real-time environmental parameters of the offshore photovoltaic field within a preset monitoring time period.

[0095] After calculating the sea-land power generation conversion factor, the sea-land conversion factor can also be corrected in real time by combining the real-time environmental information such as meteorology and hydrology at the offshore photovoltaic site.

[0096] In step S130 , the theoretical power generation of the offshore photovoltaic area is predicted based on the actual power generation of the land area and the land-sea power generation conversion factor.

[0097] In this exemplary embodiment, by comparing the sea and land illumination and radiation parameters, the theoretical power generation of the offshore photovoltaic field is calculated based on the comparison results and combined with the sea-land conversion factor.

[0098] In step S140 , the power generation status of the offshore photovoltaic field is evaluated based on the actual power generation and theoretical power generation of the offshore photovoltaic field.

[0099] In this example implementation, the power generation performance ratio and power generation deviation rate of the offshore photovoltaic field can be calculated based on the actual power generation and theoretical power generation of the offshore photovoltaic field; and the power generation status of the offshore photovoltaic field can be evaluated based on the power generation performance ratio and power generation deviation rate.

[0100] When evaluating actual power generation based on theoretical power generation, the power generation performance ratio is a core evaluation metric, reflecting the ratio of the system's actual efficiency to its theoretical efficiency. If the power generation performance ratio falls below a certain threshold, it may indicate a fault or design flaw.

[0101] The power generation deviation rate is the difference between actual efficiency and theoretical efficiency, and the ratio of actual efficiency to theoretical efficiency. If the power generation deviation rate is negative, it indicates that the cause of the deviation needs to be investigated. The cause of the deviation may be shadow, equipment failure, salt spray deposition, etc.

[0102] In addition, the power generation status of the offshore photovoltaic field may also be evaluated using other types of evaluation parameters, which are not specifically limited in this example implementation.

[0103] It should be noted that although the steps of the method of the present disclosure are described in a specific order in the drawings, this does not require or imply that the steps must be performed in this specific order, or that all steps must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps.

[0104] Furthermore, the present disclosure also provides a device for evaluating power generation. Figure 6 As shown, the power generation evaluation device may include an actual power generation acquisition module 610, a conversion factor acquisition module 620, a theoretical power generation prediction module 630, and a power generation status evaluation module 640.

[0105] The actual power generation acquisition module 610 can be used to obtain the actual power generation of the land site and the actual power generation of the offshore photovoltaic site within a preset monitoring time period;

[0106] The conversion factor acquisition module 620 can be used to obtain the land-sea power generation conversion factor between the power generation of the land site and the offshore photovoltaic site. The land-sea power generation conversion factor is the ratio of the power generation of the land site and the offshore photovoltaic site under the same lighting conditions.

[0107] The theoretical power generation prediction module 630 can be used to predict the theoretical power generation of the offshore photovoltaic field based on the actual power generation of the land field and the land-sea power generation conversion factor;

[0108] The power generation status evaluation module 640 may be used to evaluate the power generation status of the offshore photovoltaic field based on the actual power generation and theoretical power generation of the offshore photovoltaic field.

[0109] In some exemplary embodiments of the present disclosure, the conversion factor acquisition module 620 may include a historical data acquisition unit and a conversion factor determination unit.

[0110] The historical data acquisition unit can be used to obtain historical sunlight data and historical power generation of land and offshore photovoltaic areas in each historical monitoring period;

[0111] The conversion factor determination unit can be used to obtain the sea-land power generation conversion factor based on historical illumination data and historical power generation.

[0112] In some exemplary embodiments of the present disclosure, the conversion factor determination unit may include a light ratio determination unit, a reference power generation determination unit, a history unit conversion factor calculation unit, and a conversion factor calculation unit. Wherein:

[0113] The illumination ratio determination unit can be used to obtain the illumination ratio of the land site and the offshore photovoltaic site in each historical monitoring time period according to the historical illumination data;

[0114] The reference power generation determination unit can be used to obtain the reference power generation of the land area in each historical monitoring period according to the historical power generation and sunlight ratio of the land area;

[0115] The historical unit conversion factor calculation can be used to obtain the historical power generation conversion factors of the land site and the offshore photovoltaic site in each historical monitoring period based on the reference power generation of the land site and the historical power generation of the offshore photovoltaic site;

[0116] The conversion factor calculation unit can be used to obtain the sea-land power generation conversion factor based on the historical power generation conversion factor in each historical monitoring time period.

[0117] In some exemplary embodiments of the present disclosure, the conversion factor determination unit may further include a conversion factor adjustment unit, which may be used to adjust the sea-to-land power generation conversion factor according to real-time environmental parameters of the offshore photovoltaic field within a preset monitoring time period.

[0118] In some exemplary embodiments of the present disclosure, the actual power generation amount acquisition module 610 may include a radiation monitoring station arrangement unit, a radiation observation parameter acquisition unit, and an actual power generation amount determination unit.

[0119] in:

[0120] The radiation monitoring station arrangement unit can be used to arrange solar radiation monitoring stations in offshore photovoltaic areas and land areas respectively;

[0121] The radiation observation parameter acquisition unit can be used to obtain the radiation observation parameters of the land area and the offshore photovoltaic area within a preset monitoring time period through the solar radiation monitoring stations arranged in the offshore photovoltaic area and the land area;

[0122] The actual power generation determination unit can be used to obtain the actual power generation of the land site and the offshore photovoltaic site based on the radiation observation parameters.

[0123] In some exemplary embodiments of the present disclosure, the actual power generation determination unit may include a land sunshine hours acquisition unit and a land power generation determination unit.

[0124] The land sunshine duration acquisition unit can be used to obtain the sunshine duration of the land area within a preset monitoring time period from the radiation observation parameters;

[0125] The land power generation determination unit can be used to obtain the actual power generation of the land area within a preset monitoring time period based on the conventional radiation observation value and benchmark radiation observation in the radiation observation parameters, as well as the sunshine hours and effective area of the land area.

[0126] In some exemplary embodiments of the present disclosure, the land sunshine hours acquisition unit may include a sunshine hours calculation unit, which can be used to obtain the sunshine hours of the land area within a preset monitoring time period based on the direct radiation value, total radiation value or scattered radiation value in the radiation observation parameters.

[0127] In some exemplary embodiments of the present disclosure, the actual power generation determination unit may further include an offshore sunshine hours acquisition unit and an offshore power generation determination unit.

[0128] The offshore sunshine duration acquisition unit can be used to obtain the sunshine duration of the offshore photovoltaic field within a preset monitoring time period from the radiation observation parameters;

[0129] The offshore power generation determination unit can be used to obtain the actual power generation of the offshore photovoltaic area within a preset monitoring time period based on the conventional radiation observation value and benchmark radiation observation in the radiation observation parameters, as well as the sunshine hours and effective area of the offshore photovoltaic area.

[0130] In some exemplary embodiments of the present disclosure, the power generation status evaluation module 640 may include an evaluation parameter calculation unit and a power generation status evaluation unit.

[0131] The evaluation parameter calculation unit can be used to calculate the power generation performance ratio and power generation deviation rate of the offshore photovoltaic field based on the actual power generation and theoretical power generation of the offshore photovoltaic field;

[0132] The power generation status evaluation unit can be used to evaluate the power generation status of the offshore photovoltaic field based on the power generation performance ratio and the power generation deviation rate.

[0133] The specific details of each module / unit in the above-mentioned power generation evaluation device have been described in detail in the corresponding method embodiment part and will not be repeated here.

[0134] It should be noted that although several modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the exemplary embodiments of the present disclosure, the features and functions of two or more modules or units described above can be concretized in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided into multiple modules or units to be concretized.

[0135] Figure 7 A schematic diagram of the structure of a computer system suitable for implementing an electronic device according to an embodiment of the present disclosure is shown.

[0136] It should be noted that Figure 7 The computer system 700 of the electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present disclosure.

[0137] like Figure 7 As shown, computer system 700 includes a central processing unit (CPU) 701, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 702 or a program loaded from a storage unit 708 into a random access memory (RAM) 703. Various programs and data required for system operation are also stored in RAM 703. CPU 701, ROM 702, and RAM 703 are connected to each other via a bus 704. An input / output (I / O) interface 705 is also connected to bus 704.

[0138] The following components are connected to the I / O interface 705: an input section 706 including a keyboard, a mouse, and the like; an output section 707 including devices such as a cathode ray tube (CRT), a liquid crystal display (LCD), and a speaker; a storage section 708 including a hard disk; and a communication section 709 including a network interface card such as a LAN card or a modem. The communication section 709 performs communication processing via a network such as the Internet. A drive 710 is also connected to the I / O interface 705 as needed. A removable medium 711, such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory, is installed in the drive 710 as needed, so that computer programs read therefrom can be installed into the storage section 708 as needed.

[0139] In particular, according to an embodiment of the present disclosure, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via the communication section 709, and / or installed from a removable medium 711. When the computer program is executed by the central processing unit (CPU) 701, various functions defined in the system of the present disclosure are executed.

[0140] The exemplary embodiments of the present disclosure further provide a computer program product, which includes a computer program, and when the computer program is executed by a processor, implements the above-mentioned method for evaluating power generation.

[0141] In one embodiment, a computer program product may be a tangible product containing a computer program, such as a computer-readable storage medium storing the computer program. The computer-readable storage medium may be a storage medium based on electrical, magnetic, optical, electromagnetic, infrared, or other signals, including but not limited to random access memory (RAM), read-only memory (ROM), magnetic tape, floppy disk, flash memory (Flash), mechanical hard disk drive (HDD), solid-state drive (SSD), and the like. Exemplarily, the computer program product may be implemented as a non-volatile storage medium storing the computer program, such as a read-only memory, NAND flash memory, and the like.

[0142] In one embodiment, the computer program product may be an intangible product containing a computer program. For example, the computer program product may be implemented as a virtual digital product, such as a digital file such as an executable file or installation package storing the computer program.

[0143] The code of the computer program can be written in one or more programming languages. Programming languages include C, Java, C++, etc. The program code can be executed entirely on the user computing device, partially on the user computing device, or as a separate software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In the case of a remote computing device, the remote computing device can be connected to the user computing device via any type of network, such as a local area network (LAN), a wide area network (WAN), etc., or can be connected to an external computing device (e.g., via an Internet connection provided by a carrier).

[0144] Computer programs can be carried or transmitted via electrical, magnetic, optical, electromagnetic, infrared, or other signals. Electronic devices can convert signals carrying computer programs into digital signals, thereby executing the computer programs. When the computer program is executed on an electronic device, its code causes the electronic device to execute (more specifically, the processor of the electronic device to execute) the method steps of various exemplary embodiments of the present disclosure, such as the aforementioned method for evaluating power generation.

[0145] The flowcharts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, program segment, or a part of code, and the above-mentioned module, program segment, or a part of code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart, can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0146] It should be noted that although several modules of the device for action execution are mentioned in the detailed description above, this division is not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more modules described above can be embodied in one module. Conversely, the features and functions of one module described above can be further divided into multiple modules to be embodied.

[0147] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein.

[0148] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A method for evaluating power generation, characterized in that: include: Obtain the actual power generation of the land site and the actual power generation of the offshore photovoltaic site within the preset monitoring time period; Obtaining a land-sea power generation conversion factor between the power generation of the land area and the power generation of the offshore photovoltaic area, wherein the land-sea power generation conversion factor is a ratio of the power generation of the land area to the power generation of the offshore photovoltaic area under the same lighting conditions; Predicting the theoretical power generation of the offshore photovoltaic area based on the actual power generation of the land area and the land-sea power generation conversion factor; The power generation status of the offshore photovoltaic area is evaluated based on the actual power generation of the offshore photovoltaic area and the theoretical power generation.

2. The method for evaluating power generation according to claim 1, wherein: The obtaining of the land-sea power generation conversion factor between the power generation of the land area and the power generation of the offshore photovoltaic area includes: Obtaining historical illumination data and historical power generation of the land site and the offshore photovoltaic site during each historical monitoring time period; The sea-land power generation conversion factor is obtained according to the historical illumination data and the historical power generation.

3. The method for evaluating power generation according to claim 2, wherein: The obtaining of the sea-to-land power generation conversion factor based on the historical illumination data and the historical power generation includes: Obtaining, according to the historical illumination data, illumination ratios of the land site and the offshore photovoltaic site during each historical monitoring period; Obtaining a reference power generation of the land area in each of the historical monitoring time periods according to the historical power generation of the land area and the sunlight ratio; Obtaining historical power generation conversion factors of the land site and the offshore photovoltaic site during each of the historical monitoring time periods based on the reference power generation of the land site and the historical power generation of the offshore photovoltaic site; The sea-land power generation conversion factor is obtained according to the historical power generation conversion factors in each of the historical monitoring time periods.

4. The method for evaluating power generation according to claim 2, wherein: The method further comprises: The sea-to-land power generation conversion factor is adjusted according to the real-time environmental parameters of the offshore photovoltaic field within the preset monitoring time period.

5. The method for evaluating power generation according to claim 1, wherein: The obtaining of the actual power generation of the land site and the actual power generation of the offshore photovoltaic site within the preset monitoring time period includes: Arrange solar radiation monitoring stations in the offshore photovoltaic field and the land field respectively; obtaining radiation observation parameters of the land area and the offshore photovoltaic area within the preset monitoring time period respectively through solar radiation monitoring stations arranged in the offshore photovoltaic area and the land area; The actual power generation of the land area and the offshore photovoltaic area is obtained according to the radiation observation parameters.

6. The method for evaluating power generation according to claim 5, wherein: Obtaining the actual power generation of the land area according to the radiation observation parameters includes: Obtaining the sunshine hours of the land area within the preset monitoring time period from the radiation observation parameters; According to the conventional radiation observation value and the benchmark radiation observation in the radiation observation parameters, as well as the sunshine hours and effective area of the land area, the actual power generation of the land area during the preset monitoring time period is obtained.

7. The method for evaluating power generation according to claim 6, wherein: The obtaining of the sunshine hours of the land area within the preset monitoring time period from the radiation observation parameters includes: According to the direct radiation value, the global radiation value or the scattered radiation value in the radiation observation parameters, the sunshine hours of the land area in the preset monitoring time period are obtained.

8. The method for evaluating power generation according to claim 5, wherein: Obtaining the actual power generation of the offshore photovoltaic field according to the radiation observation parameters includes: Obtaining the sunshine hours of the offshore photovoltaic field within the preset monitoring time period from the radiation observation parameters; According to the conventional radiation observation value and the benchmark radiation observation in the radiation observation parameters, and the sunshine hours and effective area of the offshore photovoltaic field, the actual power generation of the offshore photovoltaic field in the preset monitoring time period is obtained.

9. The method for evaluating power generation according to claim 1, wherein: The evaluating the power generation status of the offshore photovoltaic area according to the actual power generation of the offshore photovoltaic area and the theoretical power generation includes: Calculating a power generation performance ratio and a power generation deviation rate of the offshore photovoltaic area according to the actual power generation of the offshore photovoltaic area and the theoretical power generation; The power generation status of the offshore photovoltaic field is evaluated according to the power generation performance ratio and the power generation deviation rate.

10. A device for evaluating power generation, characterized in that: include: The actual power generation acquisition module is used to obtain the actual power generation of the land site and the actual power generation of the offshore photovoltaic site within a preset monitoring time period; a conversion factor acquisition module, configured to acquire a land-sea power generation conversion factor between the power generation of the land area and the power generation of the offshore photovoltaic area, wherein the land-sea power generation conversion factor is a ratio of the power generation of the land area to the power generation of the offshore photovoltaic area under the same lighting conditions; a theoretical power generation prediction module, configured to predict the theoretical power generation of the offshore photovoltaic area based on the actual power generation of the land area and the land-sea power generation conversion factor; The power generation status evaluation module is used to evaluate the power generation status of the offshore photovoltaic area according to the actual power generation of the offshore photovoltaic area and the theoretical power generation.

11. An electronic device, characterized in that: include: processor; as well as A memory for storing one or more programs, which, when executed by the processor, causes the processor to implement the method for estimating power generation according to any one of claims 1 to 9.

12. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the method for estimating the power generation amount according to any one of claims 1 to 9 is implemented.

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