Photovoltaic power station power limiting loss and power limiting rate statistical method, system and device and storage medium

Abstract

The invention discloses a photovoltaic power station power limiting loss and power limiting rate statistical method, system and device and a storage medium. The method comprises the following steps: acquiring daily generating capacity, installed capacity and administrative regions of positions of each commissioned power station in all distributed projects in the whole country; screening out effective power generation power stations and power limiting power stations from all the power stations put into operation; calculating the daily equivalence time of each effective power generation power station, and further calculating the daily equivalence time of the power station in the effective range; calculating the daily equivalence time of each power-limiting power station, calculating the power loss of each power-limiting power station in combination with the daily equivalence time of the power stations in the effective range, respectively obtaining the power generation sum of all the power stations in the district, the city and the province and the power-limiting power loss sum of all the power-limiting power stations, and respectively calculating the power-limiting rates of the district, the city and the province. The method not only can accurately count the power limiting loss, but also can help to judge whether the power stations commissioned in districts / cities / provinces are saturated, and has important reference value for whether the power stations continue to be built in the districts / cities / provinces.

Description

Technical Field

[0001] The present invention belongs to the field of photovoltaic power generation, and relates to a method, system, equipment and storage medium for counting power-limiting losses and power-limiting rates of photovoltaic power stations. Background Art

[0002] In recent years, my country's new energy installed capacity has continued to expand, but the power consumption capacity of some regions is far lower than the local power generation capacity. Many photovoltaic power stations have encountered power cuts, and some power stations have been cut for more than 10 hours a day. This not only caused huge energy waste, but also there were no accurate statistical values ​​for power cut losses and regional power cut rates, resulting in the company's future deployment planning of power stations without reference. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a method, system, device and storage medium for counting power curtailment losses and power curtailment rates of photovoltaic power stations, which can accurately count the power curtailment losses of power curtailment power stations and the power curtailment rates of regions, cities and provinces across the country.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A statistical method for power curtailment loss and power curtailment rate of a photovoltaic power station, comprising the following steps: S1, obtain the daily power generation, installed capacity and administrative region of each operational power station in all distributed projects across the country; S2, select effective power generation power stations and power-limited power stations from all the power stations in operation; S3, calculating the daily equivalent time of each effective power station according to the daily power generation and installed capacity of each effective power station, and then calculating the daily equivalent time of the power station in the effective range; S4, calculating the daily equivalent time of each power-restricted power station according to the daily power generation and installed capacity of each power-restricted power station, and then calculating the power loss of each power-restricted power station in combination with the daily equivalent time of the power stations in the effective range; S5, according to the administrative region where each operational power station is located, the sum of the power generation of all power stations in the district, city and province and the sum of the power loss of all power-restricted power stations are obtained respectively, and then the power restriction rate of the district, city and province is calculated respectively.

[0005] Preferably, in S1, the operational power stations whose commissioning date is empty, whose commissioning date is later than the statistical date, or whose power stations are connected to the grid on the statistical date are excluded.

[0006] Preferably, in S2, the screening conditions for effective power plants are: the grid-connected date of the power plant is not empty, and the grid-connected date is less than the statistical date; the installed capacity of the power plant is greater than 0; the power generation of the power plant on that day is greater than 0; there is no serious alarm for the power plant on that day; the daily equivalent time of the power plant on that day is less than 10.

[0007] Preferably, in S2, the screening conditions for power-restricted power stations are: the power station grid-connected date is not empty, and the grid-connected date is less than the statistical date; the power station installed capacity is greater than 0; the power generation of the power station on that day is greater than 0; whether the power station has a grid warning, and the alarm time exceeds 15 minutes; the alarm starts on the same day and is restored on the same day.

[0008] Preferably, in S3, the process of calculating the effective range power station day equivalent time is: calculating the district, city and province day equivalent time step by step, and taking the day equivalent time corresponding to the smallest administrative area as the effective range power station day equivalent time.

[0009] Furthermore, the theoretical area daily equivalent time is preset. If the daily equivalent time of the district, city and province are all less than 0, the theoretical area daily equivalent time will be used as the effective range power station daily equivalent time.

[0010] Preferably, in S4, the lost electricity fee of the power-limited power station is calculated according to the daily equivalent time of each power-limited power station.

[0011] A photovoltaic power station power curtailment loss and curtailment rate statistics system, comprising: The data acquisition module is used to obtain the daily power generation, installed capacity and administrative region of each operational power station in all distributed projects across the country; A screening module is used to screen out effective power generation power stations and power-restricted power stations from all operational power stations; The effective power generation data calculation module is used to calculate the daily equivalent time of each effective power generation station according to the daily power generation and installed capacity of each effective power generation station, and then calculate the daily equivalent time of the power station in the effective range; The power-restriction data calculation module is used to calculate the daily equivalent time of each power-restriction power station according to the daily power generation and installed capacity of each power-restriction power station, and then calculate the power loss of each power-restriction power station in combination with the daily equivalent time of the power stations in the effective range; The power restriction rate calculation module is used to obtain the sum of power generation of all power stations in the district, city and province and the sum of power loss of all power restriction power stations according to the administrative region where each operational power station is located, and then calculate the power restriction rate of the district, city and province respectively.

[0012] A computer device comprises a memory, a processor and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the statistical method for power curtailment loss and power curtailment rate of a photovoltaic power station are implemented.

[0013] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the method for calculating power-limiting losses and power-limiting rates of photovoltaic power stations.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention obtains the power generation of photovoltaic power stations, analyzes the power station daily equivalent time and the effective range power station daily equivalent time, and analyzes the power loss of power-limited power stations and the power-limiting rates of regions, cities, and provinces across the country. The power loss and power-limiting rates of power-limited power stations statistically calculated by this power station power-limiting assessment method not only accurately calculate the power-limiting losses, but also can help determine whether the power stations put into operation in the region / city / province are saturated, which has important reference value for whether the region / city / province continues to build power stations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A flow chart of a statistical method for power-limiting losses and power-limiting rates in a photovoltaic power station according to the present invention; Figure 2 The flow chart for obtaining the power station day equivalent time is within the effective range of the present invention. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. The term "and / or" used in this article includes any and all combinations of one or more related listed items. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0019] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0020] The method for calculating power-limiting losses and power-limiting rates of photovoltaic power stations according to the present invention includes the following contents: S1, obtain the daily power generation, installed capacity and administrative region of each operational power station in all distributed projects across the country.

[0021] S2, select the effective power generation power stations and power restriction power stations from all the power stations in operation.

[0022] S3, calculating the daily equivalent time of each effective power station according to the daily power generation and installed capacity of each effective power station, and then calculating the daily equivalent time of the effective range power station.

[0023] S4, calculating the daily equivalent time of each power-restricted power station according to the daily power generation and installed capacity of each power-restricted power station, and then calculating the power loss and power charge of each power-restricted power station in combination with the daily equivalent time of the power stations in the effective range.

[0024] S5, according to the administrative region where each operational power station is located, the sum of the power generation of all power stations in the district, city and province and the sum of the power loss of all power-restricted power stations are obtained respectively, and then the power restriction rate of the district, city and province is calculated respectively.

[0025] The statistical method of power-limiting losses and power-limiting rates of photovoltaic power stations of the present invention. By analyzing the power generation and alarm data of household photovoltaic project power stations, and by analyzing the daily equivalent time of the power stations and the daily equivalent time of the effective range power stations, the power-limiting power stations, power-limiting loss of electricity, power-limiting loss of electricity charges, and power-limiting rates of regions, cities, and provinces across the country are analyzed. The power-limiting power station loss of electricity, loss of electricity charges, and power-limiting rates of power-limiting power stations statistically calculated by this power station power-limiting assessment method not only accurately calculate the power-limiting losses, but also can help determine whether the power stations put into operation in the region / city / province are saturated, which has important reference value for whether the region / city / province continues to build power stations.

[0026] like Figure 1 As shown, the above method specifically includes the following steps: S1. The power generation and alarm information of the inverters of the distributed projects must include the power generation and alarm information of all inverters in all distributed projects across the country.

[0027] S2. The operational power stations of distributed projects are all the operational power stations in the country.

[0028] S3. Abnormal data cleaning is required for operational power stations. First, the operation date cleaning is completed. The operation date cannot be empty, and the operation date must be earlier than the statistical date. Power stations connected to the grid on the statistical date are excluded, because the power generation of power stations connected to the grid on that day may be less than the normal daily power generation of the power station; secondly, the province, city, and district information of the power station cannot be empty. If the province / city / district is empty, the equivalent time of the power station in the corresponding range cannot be obtained through the province, city, and district. The installed capacity cannot be empty and cannot be 0. The equivalent time of the power station is the power generation of the power station divided by the installed capacity of the power station. If the installed capacity is empty or 0, the equivalent time of the power station cannot be calculated.

[0029] S4. Calculate the daily power generation of the operational power station. The calculation formula is as follows:

[0030] In the formula, They are the inverters of the operational power stations. 1,2...N The power generation of all power stations in the province, city and district can be obtained by adding up the daily power generation of the power stations in operation.

[0031] S5. Calculate the daily equivalent time of the operational power station using the following formula: V=( ) / C In the formula, is the daily power generation of the power station; C is the installed capacity of the power station; V is the daily equivalent time of the power station.

[0032] S6. Select effective power plants from all operational power plants, and the following conditions must be met: The power station grid-connected date is not empty, and the grid-connected date is < the statistical date.

[0033] The installed capacity of the power station is greater than 0.

[0034] The power station province, city, and district are not empty.

[0035] The power station had no communication interruption on that day, that is, the power generation of the power station was greater than 0.

[0036] There were no serious alarms at the power station that day.

[0037] The power station’s daily equivalent is less than 10.

[0038] S7. When the calculation area is equivalent, the calculation formula is as follows:

[0039] In the formula, is the daily equivalent time of all effective power stations in the area; Ac is the number of effective power stations in the area; Av is the daily equivalent time of the area.

[0040] S8. When calculating the market day equivalent, the calculation formula is as follows:

[0041] In the formula, The equivalent time of all effective power stations in the city; Cc is the number of effective power stations in the city; Cv is the equivalent time of the city.

[0042] S9. When calculating provincial equivalent, the calculation formula is as follows:

[0043] In the formula, is the daily equivalent time of all effective power stations in the province; Pc is the number of effective power stations in the province; Pv is the daily equivalent time of the province.

[0044] S10. Since all the operational power stations in the district, city and province may have statistical failures or shutdowns and cannot generate electricity effectively, in order to avoid the failure to obtain effective daily equivalent time, the theoretical district daily equivalent time S is set. v , which is the preset zone day equivalent time.

[0045] S11. When obtaining the effective range power station day equivalent, the acquisition process is as follows: Figure 2 shown.

[0046] It is determined step by step whether the daily equivalent time of the district, city and province is greater than 0. If the daily equivalent time of the district, city and province is less than 0, that is, all the operating power stations in the district, city and province are faulty or shut down during the statistical period, then the theoretical district daily equivalent time will be used as the effective range power station daily equivalent time. If in the step-by-step judgment, there is a daily equivalent time greater than 0 for the district, city and province, then the daily equivalent time will be used as the effective range power station daily equivalent time, that is, the daily equivalent time corresponding to the smallest administrative area will be used as the effective range power station daily equivalent time.

[0047] In the flow chart, Av is the equivalent time of the district day of the district to which the power station belongs; C v P is the equivalent time of the city day of the city to which the power station belongs; v S is the provincial day equivalent time of the province to which the power station belongs; v is the theoretical zone day equivalent time; Con v It is the equivalent time of power station day within the effective range.

[0048] S12. Select the power-restricted power stations from all the operational power stations. The selection conditions for the power-restricted power stations are: The power station grid-connected date is not empty, and the grid-connected date is < the statistical date.

[0049] The power generation on that day is greater than 0.

[0050] The power station has a [No Grid] warning, and the warning time exceeds 15 minutes.

[0051] The alarm starts and ends on the same day.

[0052] The [No Grid] warning can be configured in the system. The no grid content currently set by various manufacturers is as follows: Table 1 Off-grid content set by each manufacturer

[0053] S13. Calculate the power loss of the power-limited power station. The formula is as follows: le=(Con v -V 限 )*C Where, Con v The effective range is the equivalent time of power station day; V 限 is the equivalent time of the power-restricted power station day; C is the installed capacity of the power station; le is the power loss of the power station day. The power loss of all power-restricted power stations in the province, city and district is obtained by adding up the power loss of the power station day.

[0054] S14. Calculate the electricity cost lost by the power-limited power station. The formula is as follows: lp=(Con v -V 限 )*C*P Where, Con v The effective range is the equivalent time of power station day; V 限 is the equivalent time of the power-restricted power station day; C is the installed capacity of the power station; P is the power price of the power station; lp is the daily loss electricity fee.

[0055] S15. Calculate the power restriction rate of the area. The formula is as follows:

[0056] In the formula, The power generation capacity of all power stations in the district and. is the total power loss of all power-restricted power stations in the region. ALr is the power restriction rate of the region.

[0057] S16. Calculate the city power restriction rate using the following formula:

[0058] In the formula, The power generation capacity of all power stations in the city and. is the total power loss of all power-restricted power stations in the city. CLr is the power restriction rate of the city.

[0059] S17, calculate the power saving rate, the formula is as follows:

[0060] In the formula, To save the power generation capacity of all power stations and. is the sum of power loss caused by power restriction of all power restriction power stations in the province. PLr is the power restriction rate of the province.

[0061] The following are device embodiments of the present invention, which can be used to perform method embodiments of the present invention. For details not disclosed in the device embodiments, please refer to the method embodiments of the present invention.

[0062] In another embodiment of the present invention, a photovoltaic power station power curtailment loss and power curtailment rate statistics system is provided. The photovoltaic power station power curtailment loss and power curtailment rate statistics system can be used to implement the above-mentioned photovoltaic power station power curtailment loss and power curtailment rate statistics method. Specifically, the photovoltaic power station power curtailment loss and power curtailment rate statistics system includes a data acquisition module, a screening module, an effective power generation data calculation module, a power curtailment data calculation module and a power curtailment rate calculation module.

[0063] The data acquisition module is used to obtain the daily power generation, installed capacity and administrative region of each operational power station in all distributed projects across the country.

[0064] The screening module is used to screen out effective power generation power stations and power-restricted power stations from all operating power stations.

[0065] The effective power generation data calculation module is used to calculate the daily equivalent time of each effective power generation station according to the daily power generation and installed capacity of each effective power generation station, and then calculate the daily equivalent time of the effective range power station.

[0066] The power-limiting data calculation module is used to calculate the daily equivalent time of each power-limiting power station according to the daily power generation and installed capacity of each power-limiting power station, and then calculate the power loss of each power-limiting power station in combination with the daily equivalent time of the power stations in the effective range.

[0067] The power restriction rate calculation module is used to obtain the sum of power generation of all power stations in the district, city and province and the sum of power loss of all power restriction power stations according to the administrative region where each operational power station is located, and then calculate the power restriction rate of the district, city and province respectively.

[0068] In another embodiment of the present invention, a terminal device is provided, the terminal device includes a processor and a memory, the memory is used to store a computer program, the computer program includes program instructions, and the processor is used to execute the program instructions stored in the computer storage medium. The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. It is the computing core and control core of the terminal, which is suitable for implementing one or more instructions, and is specifically suitable for loading and executing one or more instructions to implement the corresponding method flow or corresponding function; the processor described in the embodiment of the present invention can be used for the operation of the power-limiting loss and power-limiting rate statistical method of photovoltaic power stations, including: S1, obtaining the daily power generation, installed capacity and administrative region of each operational power station in all distributed projects across the country; S2, screening from all operational power stations The effective power generation stations and power-restricted power stations are obtained; S3, according to the daily power generation and installed capacity of each effective power generation station, the daily equivalent time of each effective power generation station is calculated, and then the daily equivalent time of the effective range power station is calculated; S4, according to the daily power generation and installed capacity of each power-restricted power station, the daily equivalent time of each power-restricted power station is calculated, and then the power loss of each power-restricted power station is calculated in combination with the daily equivalent time of the effective range power station; S5, according to the administrative region where each operational power station is located, the power generation and power loss of all power stations in the district, city and province are obtained respectively, and then the power restriction rate of the district, city and province is calculated respectively.

[0069] In another embodiment, the present invention further provides a computer-readable storage medium (Memory), which is a memory device in a terminal device for storing programs and data. It is understandable that the computer-readable storage medium here can include both the built-in storage medium in the terminal device and the extended storage medium supported by the terminal device. The computer-readable storage medium provides a storage space, which stores the operating system of the terminal. In addition, one or more instructions suitable for being loaded and executed by the processor are also stored in the storage space, and these instructions can be one or more computer programs (including program codes). It should be noted that the computer-readable storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory.

[0070] The processor can load and execute one or more instructions stored in a computer-readable storage medium to implement the corresponding steps of the statistical method for power curtailment loss and power curtailment rate of photovoltaic power stations in the above-mentioned embodiment; one or more instructions in the computer-readable storage medium are loaded by the processor and execute the following steps: S1, obtaining the daily power generation, installed capacity and administrative region of each operational power station in all distributed projects across the country; S2, screening out effective power generation power stations and power curtailment power stations from all operational power stations; S3, calculating the daily equivalent time of each effective power generation power station based on the daily power generation and installed capacity of each effective power generation power station, and then calculating the daily equivalent time of the power station in the effective range; S4, calculating the daily equivalent time of each power curtailment power station based on the daily power generation and installed capacity of each power curtailment power station, and then calculating the power loss of each power curtailment power station in combination with the daily equivalent time of the power station in the effective range; S5, according to the administrative region to which each operational power station belongs, respectively obtain the power generation and power loss of all power stations in the district, city and province and the power curtailment rate of all power curtailment power stations, and then respectively calculate the power curtailment rate of the district, city and province.

[0071] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0072] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0073] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0074] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0075] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0076] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this patent should not be determined with reference to the above description, but rather with reference to the preceding claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a waiver of such subject matter, nor should it be considered that the applicant has not considered such subject matter to be part of the disclosed inventive subject matter.

Claims

1. A statistical method for power curtailment loss and power curtailment rate of a photovoltaic power station, characterized in that: The process includes: S1, obtain the daily power generation, installed capacity and administrative region of each operational power station in all distributed projects across the country; S2, select effective power generation power stations and power-limited power stations from all the power stations in operation; S3, calculating the daily equivalent time of each effective power station according to the daily power generation and installed capacity of each effective power station, and then calculating the daily equivalent time of the power station in the effective range; S4, calculating the daily equivalent time of each power-restricted power station according to the daily power generation and installed capacity of each power-restricted power station, and then calculating the power loss of each power-restricted power station in combination with the daily equivalent time of the power stations in the effective range; S5, according to the administrative region where each operational power station is located, the sum of the power generation of all power stations in the district, city and province and the sum of the power loss of all power-restricted power stations are obtained respectively, and then the power restriction rate of the district, city and province is calculated respectively.

2. The method for calculating power outage losses and power outage rates of photovoltaic power stations according to claim 1, characterized in that: In S1, the operational power stations whose commissioning date is empty, whose commissioning date is later than the statistical date, or whose power stations are connected to the grid on the statistical date are excluded.

3. The statistical method for power curtailment loss and power curtailment rate of a photovoltaic power station according to claim 1, characterized in that: In S2, the screening conditions for effective power plants are: the grid-connected date of the power plant is not empty, and the grid-connected date is less than the statistical date; the installed capacity of the power plant is greater than 0; the power generation of the power plant on that day is greater than 0; there is no serious alarm on that day; the daily equivalent time of the power plant on that day is less than 10.

4. The method for calculating power curtailment loss and power curtailment rate of a photovoltaic power station according to claim 1, characterized in that: In S2, the screening conditions for power-restricted power stations are: the power station grid-connected date is not empty, and the grid-connected date is less than the statistical date; the power station installed capacity is greater than 0; the power generation of the power station on that day is greater than 0; whether the power station has a grid warning, and the alarm time exceeds 15 minutes; the alarm starts on the same day and is restored on the same day.

5. The method for calculating power curtailment loss and power curtailment rate of a photovoltaic power station according to claim 1, characterized in that: In S3, the process of calculating the effective range power station day equivalent time is as follows: the daily equivalent time of the district, city and province is calculated step by step, and the daily equivalent time corresponding to the smallest administrative area is used as the effective range power station day equivalent time.

6. The method for calculating power curtailment loss and power curtailment rate of a photovoltaic power station according to claim 5, characterized in that: The theoretical area daily equivalent time is preset. If the daily equivalent time of the district, city and province are all less than 0, the theoretical area daily equivalent time will be used as the daily equivalent time of the power station in the effective range.

7. The method for calculating power curtailment loss and power curtailment rate of a photovoltaic power station according to claim 1, characterized in that: In S4, the power loss fee of the power-restricted power station is calculated according to the daily equivalent time of each power-restricted power station.

8. A photovoltaic power station power curtailment loss and power curtailment rate statistics system, characterized in that: include: The data acquisition module is used to obtain the daily power generation, installed capacity and administrative region of each operational power station in all distributed projects across the country; A screening module is used to screen out effective power generation power stations and power-restricted power stations from all operational power stations; The effective power generation data calculation module is used to calculate the daily equivalent time of each effective power generation station according to the daily power generation and installed capacity of each effective power generation station, and then calculate the daily equivalent time of the power station in the effective range; The power-restriction data calculation module is used to calculate the daily equivalent time of each power-restriction power station according to the daily power generation and installed capacity of each power-restriction power station, and then calculate the power loss of each power-restriction power station in combination with the daily equivalent time of the power stations in the effective range; The power restriction rate calculation module is used to obtain the sum of power generation of all power stations in the district, city and province and the sum of power loss of all power restriction power stations according to the administrative region where each operational power station is located, and then calculate the power restriction rate of the district, city and province respectively.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method for calculating power curtailment losses and power curtailment rates of photovoltaic power stations as claimed in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method for calculating power curtailment losses and power curtailment rates of a photovoltaic power station as claimed in any one of claims 1 to 7 are implemented.

Images