Performance test platform and performance test method for photovoltaic tracking support control algorithm

Abstract

The invention discloses a performance test platform and a performance test method for a photovoltaic tracking support control algorithm, and belongs to the technical field of photovoltaic test. The platform comprises an irradiation simulation system, a tracking bracket system, a data acquisition system and a communication control system, wherein the data acquisition system is used for acquiring algorithm input data corresponding to a photovoltaic tracking bracket control algorithm to be tested and photovoltaic power generation data of a photovoltaic tracking bracket; the communication control system is used for controlling the irradiation simulation system and the tracking support system to act based on a photovoltaic tracking support control algorithm to be tested and algorithm input data, and determining a performance test result of the photovoltaic tracking support control algorithm to be tested based on photovoltaic power generation data; wherein the plurality of photovoltaic tracking brackets are divided into an experimental group and a control group, and the experimental group executes actions corresponding to the photovoltaic tracking bracket control algorithm. The platform can more conveniently, quickly and accurately verify the reliability and accuracy of a control algorithm adopted by photovoltaic support tracking.

Description

Technical Field

[0001] The present application belongs to the field of photovoltaic testing technology, and in particular, relates to a performance testing platform and a performance testing method for a photovoltaic tracking bracket control algorithm. Background Art

[0002] In a photovoltaic system, photovoltaic modules are usually fixed on photovoltaic tracking brackets to improve power generation efficiency. Photovoltaic tracking brackets can adjust the orientation of photovoltaic modules according to the lighting conditions to reduce the angle between photovoltaic modules and direct sunlight, so that photovoltaic modules can obtain maximum irradiation and improve power generation efficiency.

[0003] At present, the intelligent tracking algorithm for controlling photovoltaic tracking brackets for tracking is mainly verified by building experimental power stations for empirical testing. This type of method has a long verification cycle and high investment cost. It is affected by environmental and site conditions, and the reliability and accuracy of the test are limited. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a performance testing platform and a performance testing method for a photovoltaic tracking bracket control algorithm, which can more conveniently, quickly and accurately verify the reliability and accuracy of the control algorithm used in photovoltaic bracket tracking.

[0005] In a first aspect, the present application provides a performance testing platform for a photovoltaic tracking bracket control algorithm, the platform comprising:

[0006] An irradiation simulation system, the irradiation simulation system comprising a mounting bracket, a solar simulator and a scattered irradiation simulation device, the solar simulator and the scattered irradiation simulation device being mounted on the mounting bracket;

[0007] A tracking bracket system, the tracking bracket system is located in the accommodation space defined by the mounting bracket, the tracking bracket system includes a plurality of photovoltaic tracking brackets and a bracket adjustment device, the bracket adjustment device is used to adjust the distance between the photovoltaic tracking brackets and the height of the photovoltaic tracking brackets;

[0008] A data acquisition system, the data acquisition system is used to collect algorithm input data corresponding to the photovoltaic tracking bracket control algorithm to be tested and photovoltaic power generation data of the photovoltaic tracking bracket;

[0009] A communication control system, wherein the communication control system is connected to the irradiation simulation system, the tracking bracket system and the data acquisition system, and the communication control system is used to control the actions of the irradiation simulation system and the tracking bracket system based on the photovoltaic tracking bracket control algorithm to be tested and the algorithm input data, and determine the performance test result of the photovoltaic tracking bracket control algorithm to be tested based on the photovoltaic power generation data;

[0010] The multiple photovoltaic tracking brackets are divided into an experimental group and a control group, and the communication control system is used to control the experimental group to execute actions corresponding to the photovoltaic tracking bracket control algorithm.

[0011] According to the performance testing platform of the photovoltaic tracking bracket control algorithm of the present application, by designing the irradiation simulation system and the tracking bracket system, various irradiation, environmental conditions and site conditions can be simulated to test the performance of the photovoltaic tracking bracket control algorithm, and the reliability and accuracy of the control algorithm adopted for photovoltaic bracket tracking can be verified more conveniently, quickly and accurately.

[0012] According to an embodiment of the present application, the mounting bracket is a spherical grid structure, and the scattered radiation simulation device includes a plurality of lighting devices, and the plurality of lighting devices are evenly arranged on the spherical grid structure.

[0013] According to one embodiment of the present application, the photovoltaic tracking bracket includes a tracking bracket body and photovoltaic components installed on two opposite sides of the tracking bracket body.

[0014] According to one embodiment of the present application, the plurality of photovoltaic tracking brackets are arranged in a plurality of rows, each row includes at least two photovoltaic tracking brackets, and the photovoltaic tracking brackets in each row are divided into the experimental group and the control group.

[0015] According to one embodiment of the present application, the irradiation simulation system further includes a first driving device and a second driving device;

[0016] The first driving device is connected to the solar simulator, and the first driving device is used to adjust the altitude angle of the solar simulator;

[0017] The second driving device is connected to the solar simulator, and the second driving device is used to adjust the azimuth angle of the solar simulator.

[0018] In a second aspect, the present application provides a performance test method for a photovoltaic tracking bracket control algorithm, which is applied to a performance test platform for a photovoltaic tracking bracket control algorithm as described in the first aspect above, and the method comprises:

[0019] Obtain algorithm input data corresponding to the photovoltaic tracking bracket control algorithm to be tested;

[0020] Based on the photovoltaic tracking bracket control algorithm to be tested and the algorithm input data, control the actions of the irradiation simulation system and the tracking bracket system, and obtain the photovoltaic power generation data of the photovoltaic tracking bracket of the tracking bracket system;

[0021] Based on the photovoltaic power generation data, a performance test result of the photovoltaic tracking bracket control algorithm to be tested is determined.

[0022] According to the performance testing method of the photovoltaic tracking bracket control algorithm of the present application, the performance of the photovoltaic tracking bracket control algorithm is tested by simulating various radiation, environmental conditions and site conditions through the radiation simulation system and the tracking bracket system, which can more conveniently, quickly and accurately verify the reliability and accuracy of the control algorithm used for photovoltaic bracket tracking.

[0023] According to one embodiment of the present application, the photovoltaic tracking bracket control algorithm to be tested is an inverter data algorithm, an irradiation data algorithm or a bifacial component intelligent algorithm. Based on the photovoltaic tracking bracket control algorithm to be tested and the algorithm input data, the irradiation simulation system and the tracking bracket system are controlled to operate, and the photovoltaic power generation data of the photovoltaic tracking bracket of the tracking bracket system is obtained, including:

[0024] Controlling the irradiation simulation system to simulate full irradiation weather conditions, and controlling the experimental group and the control group of the tracking support system to track according to the reference support control algorithm;

[0025] When it is determined that the power generation difference between the experimental group and the control group when tracking according to the benchmark bracket control algorithm is less than the first target threshold, the irradiation simulation system is controlled to simulate multiple scattered irradiation weather conditions, the experimental group is controlled to track according to the photovoltaic tracking bracket control algorithm to be tested and the control group is controlled to track according to the benchmark bracket control algorithm, and the photovoltaic power generation data of the control group and the experimental group in at least one sampling period are obtained, and the scattering proportions of the multiple scattered irradiation weather conditions are different.

[0026] According to one embodiment of the present application, controlling the radiation simulation system to simulate multiple scattered radiation weather conditions includes:

[0027] The scattered radiation level of the radiation simulation system is controlled to decrease in the first time period of the sampling cycle, and the scattered radiation level of the radiation simulation system is controlled to increase first and then decrease in the second time period of the sampling cycle, and the duration of the first time period is longer than the duration of the second time period.

[0028] According to an embodiment of the present application, a plurality of photovoltaic tracking brackets are arranged in a plurality of rows, each row includes at least two photovoltaic tracking brackets, and the photovoltaic tracking brackets in each row are divided into the experimental group and the control group. The photovoltaic tracking bracket control algorithm to be tested is an intelligent inverse tracking algorithm. The control algorithm based on the photovoltaic tracking bracket control algorithm to be tested and the algorithm input data is used to control the irradiation simulation system and the tracking bracket system, and the photovoltaic power generation data of the photovoltaic tracking bracket of the tracking bracket system is obtained, including:

[0029] Control the bracket adjustment device to adjust the distance between the two photovoltaic tracking brackets and the height of the photovoltaic tracking brackets, so that the height of the photovoltaic tracking brackets located in the middle of the multiple rows is smaller than the height of the photovoltaic tracking brackets located at both ends of the multiple rows;

[0030] Controlling the irradiation simulation system to simulate a full irradiation weather state, and controlling the experimental group and the control group to track according to a reference support control algorithm during a reverse tracking phase;

[0031] When it is determined that the difference in power generation corresponding to the experimental group and the control group tracking according to the benchmark bracket control algorithm is less than the first target threshold, the experimental group is controlled to track according to the photovoltaic tracking bracket control algorithm to be tested, and the control group is controlled to track according to the benchmark bracket control algorithm, and the photovoltaic power generation data of the control group and the experimental group in at least one sampling period are obtained.

[0032] According to one embodiment of the present application, a plurality of photovoltaic tracking brackets are divided into an experimental group and a control group, the experimental group is used for tracking based on the photovoltaic tracking bracket control algorithm to be tested, and the control group is used for tracking based on the reference bracket control algorithm, and the performance test result of the photovoltaic tracking bracket control algorithm to be tested is determined based on the photovoltaic power generation data, including:

[0033] Based on the photovoltaic power generation data of the experimental group and the control group in at least one sampling period, respectively determine the cumulative power generation of the experimental group and the control group;

[0034] Based on the cumulative power generation of the experimental group and the control group, a performance test result of the photovoltaic tracking bracket control algorithm to be tested is determined.

[0035] In a third aspect, the present application provides a performance test device for a photovoltaic tracking bracket control algorithm, which is applied to the performance test platform for the photovoltaic tracking bracket control algorithm described in the first aspect above, and the device includes:

[0036] An acquisition module is used to acquire algorithm input data corresponding to the photovoltaic tracking bracket control algorithm to be tested;

[0037] A first processing module is used to control the actions of the irradiation simulation system and the tracking bracket system based on the photovoltaic tracking bracket control algorithm to be tested and the algorithm input data, and to obtain the photovoltaic power generation data of the photovoltaic tracking bracket of the tracking bracket system;

[0038] The second processing module is used to determine the performance test result of the photovoltaic tracking bracket control algorithm to be tested based on the photovoltaic power generation data.

[0039] In a fourth aspect, the present application provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the performance testing method for the photovoltaic tracking bracket control algorithm as described in the second aspect above is implemented.

[0040] In a fifth aspect, the present application provides a non-transitory computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the performance testing method of the photovoltaic tracking bracket control algorithm as described in the second aspect above is implemented.

[0041] In a sixth aspect, the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the performance testing method of the photovoltaic tracking bracket control algorithm as described in the second aspect above.

[0042] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0044] Figure 1 This is one of the structural schematic diagrams of the performance test platform of the photovoltaic tracking bracket control algorithm provided in the embodiment of the present application;

[0045] Figure 2 This is the second structural schematic diagram of the performance test platform of the photovoltaic tracking bracket control algorithm provided in the embodiment of the present application;

[0046] Figure 3 This is one of the structural schematic diagrams of the photovoltaic tracking bracket provided in the embodiment of the present application;

[0047] Figure 4 This is the second structural schematic diagram of the photovoltaic tracking bracket provided in the embodiment of the present application;

[0048] Figure 5This is the third structural schematic diagram of the photovoltaic tracking bracket provided in the embodiment of the present application;

[0049] Figure 6 It is a flow chart of a performance test method of a photovoltaic tracking bracket control algorithm provided in an embodiment of the present application;

[0050] Figure 7 It is a structural schematic diagram of a performance testing device for a photovoltaic tracking bracket control algorithm provided in an embodiment of the present application;

[0051] Figure 8 It is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0052] Reference numerals:

[0053] Mounting bracket 110, solar simulator 120, lighting device 130, base 140, horizontal irradiance detector 150,

[0054] Photovoltaic tracking bracket 200 , photovoltaic assembly 201 , slide rail 202 , column 203 , tracking bracket body 204 . DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0056] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0057] In combination with the accompanying drawings, the performance testing platform of the photovoltaic tracking bracket control algorithm, the performance testing method of the photovoltaic tracking bracket control algorithm, the performance testing device of the photovoltaic tracking bracket control algorithm, the electronic device and the readable storage medium provided in the embodiments of the present application are described in detail through specific embodiments and their application scenarios.

[0058] The photovoltaic tracking bracket control algorithm refers to a control algorithm used to adjust the inclination angle of the photovoltaic tracking bracket 200 and control the photovoltaic tracking bracket 200 to track.

[0059] The performance testing platform of the photovoltaic tracking bracket control algorithm of the embodiment of the present application includes: an irradiation simulation system, a tracking bracket system, a data acquisition system and a communication control system.

[0060] In this embodiment, the radiation simulation system includes a mounting bracket 110 , a solar simulator 120 , and a scattered radiation simulation device, and the solar simulator 120 and the scattered radiation simulation device are mounted on the mounting bracket 110 .

[0061] The irradiation simulation system is used to simulate the natural irradiation environment. It can adjust the sun's rising and setting, spectral distribution, direct radiation intensity, scattered radiation intensity, and radiation uniformity.

[0062] like Figure 1 As shown, the solar simulator 120 is used to emit simulated sunlight, and the solar simulator 120 is installed on the mounting bracket 110 .

[0063] In actual implementation, the spectral distribution of the light emitted by the solar simulator 120 satisfies the spectral distribution of sunlight, and the light source stability of the solar simulator 120 is ≥90%, the irradiation uniformity of the irradiated surface is ≥90%, and the irradiation value of the direct radiation simulated by the solar simulator 120 to the irradiated surface is 0W / m 2 -1200W / m 2 , the specific value is adjustable.

[0064] In some embodiments, the irradiation simulation system may also include a first driving device and a second driving device; the first driving device is connected to the solar simulator 120, and the first driving device is used to adjust the altitude angle of the solar simulator 120; the second driving device is connected to the solar simulator 120, and the second driving device is used to adjust the azimuth angle of the solar simulator 120.

[0065] In this embodiment, the real-time solar altitude angle and solar azimuth angle can be calculated according to the longitude and latitude, time zone, time information, etc., and the altitude angle and azimuth angle of the solar simulator 120 can be adjusted by the first driving device and the second driving device.

[0066] The scattered radiation simulation device is used to simulate the scattered radiation formed by the scattering of sunlight by air molecules, cloud droplets and aerosols in the atmosphere and the diffuse reflection of the ground surface.

[0067] Among them, scattered radiation is the phenomenon that electromagnetic radiation energy is redistributed in various directions in a certain pattern due to the action of air molecules and aerosol particles, or due to the fluctuation and unevenness of air density.

[0068] The distribution of annual exposure to scattered radiation is that low-latitude areas are greater than high-latitude areas, low-altitude areas are greater than high-altitude areas, and the western dry area is greater than the eastern humid area.

[0069] In actual implementation, the scattered radiation intensity and uniformity of the scattered radiation simulation device can be adjusted according to the test requirements of different regions or different time periods. The irradiation value from the scattered radiation simulation device to the irradiated surface is 0W / m 2 -200W / m 2 , the specific value is adjustable.

[0070] In some embodiments, Figure 2 As shown, the mounting bracket 110 is a spherical grid structure, and the scattered radiation simulation device includes a plurality of lighting devices 130, and the plurality of lighting devices 130 are evenly arranged on the spherical grid structure.

[0071] In actual implementation, by adjusting the switches and illumination intensities of different lighting devices 130 , the parameters such as the scattered illumination intensity and illumination uniformity of the scattered illumination simulation device can be adjusted.

[0072] It is understandable that the start / stop, position, direct irradiance value of the solar simulator 120 and the start / stop, diffuse irradiance value of the lighting device 130 in the diffuse irradiation simulation device can be adjusted according to actual test requirements.

[0073] The tracking bracket system is located in the accommodation space defined by the mounting bracket 110 , and includes a plurality of photovoltaic tracking brackets 200 and a bracket adjustment device, wherein the bracket adjustment device is used to adjust the distance between each of the photovoltaic tracking brackets 200 and the height of the photovoltaic tracking brackets 200 .

[0074] In this embodiment, the tracking support system may be installed on the base 140 of the performance test platform, and the mounting support 110 may also be installed on the base 140 . The tracking support system is located in the accommodation space defined by the mounting support 110 .

[0075] The photovoltaic tracking bracket 200 may include a photovoltaic component 201 and a tracking bracket body 204 . The photovoltaic component 201 is installed on the tracking bracket body 204 . The tracking bracket body 204 may adjust the inclination angle of the photovoltaic component 201 .

[0076] The bracket adjustment device can adjust the distance between each of the multiple photovoltaic tracking brackets 200 and the height of the photovoltaic tracking brackets 200 to simulate the installation spacing, height from the ground, terrain and other working parameters of different photovoltaic systems.

[0077] In actual implementation, Figure 3As shown, the bracket adjustment device may include a slide rail 202 and a column 203. The photovoltaic tracking bracket 200 is arranged in the east-west direction. The slide rail 202 is used to achieve adjustable installation spacing. The column 203 of each photovoltaic tracking bracket 200 is provided with a height adjustment hole to achieve adjustable installation height from the ground and adjustable terrain of the photovoltaic component 201. For example, the relative slope between the photovoltaic tracking brackets 200 is adjusted between 2% and 8%.

[0078] In this embodiment, a plurality of photovoltaic tracking brackets 200 are divided into an experimental group and a control group, and the experimental group is used to execute actions corresponding to the photovoltaic tracking bracket control algorithm to be tested.

[0079] The control group serves as a control for the experimental group. The control group can execute the actions corresponding to the benchmark bracket control algorithm to test the improvement in power generation of the photovoltaic tracking bracket control algorithm compared with the benchmark bracket control algorithm. The control group may also not execute any bracket control algorithm, that is, the tracking bracket body 204 of the control group does not adjust the inclination angle of the photovoltaic component 201, so as to test the power generation improved by adjusting the inclination angle of the photovoltaic tracking bracket control algorithm.

[0080] The data acquisition system of the performance test platform is used to collect algorithm input data corresponding to the photovoltaic tracking bracket control algorithm to be tested and photovoltaic power generation data of the photovoltaic tracking bracket 200.

[0081] In actual implementation, the data acquisition system may include a variety of data acquisition devices to collect corresponding algorithm input data according to different photovoltaic tracking bracket control algorithms.

[0082] The data acquisition system can collect algorithm input data such as longitude, latitude, time, and horizontal total irradiance meter data.

[0083] For example, the data acquisition system includes a horizontal irradiance detector 150. The horizontal irradiance detector 150 and multiple photovoltaic tracking brackets 200 are located in the accommodation space defined by the mounting bracket 110. The horizontal irradiance detector 150 can collect horizontal irradiance data simulated by the irradiation simulation system.

[0084] In this embodiment, the data acquisition system is connected to the photovoltaic tracking bracket 200 , and the data acquisition system can collect photovoltaic power generation data generated by the photovoltaic components 201 on the photovoltaic tracking bracket 200 .

[0085] It is understandable that when the tracking bracket body 204 adjusts the inclination angle of the photovoltaic assembly 201 , the data acquisition system can also acquire the inclination angle of the tracking bracket body 204 .

[0086] In actual implementation, the data acquisition system can be configured with a data monitoring platform to monitor and display data such as the inclination angle of the tracking bracket body 204, the irradiation data of the environment in which the photovoltaic tracking bracket 200 is located, and the power generation power of the photovoltaic module 201 in real time.

[0087] The communication control system of the performance test platform is connected to the irradiation simulation system, the tracking bracket system and the data acquisition system. The communication control system is used to control the irradiation simulation system and the tracking bracket system based on the photovoltaic tracking bracket control algorithm to be tested and the algorithm input data, and determine the performance test results of the photovoltaic tracking bracket control algorithm to be tested based on the photovoltaic power generation data.

[0088] A complete communication architecture is constructed through the communication control system in the performance test platform, which can communicate and control the photovoltaic tracking bracket 200 and the irradiation simulation system in real time, perform calculations based on the collected algorithm input data, control the actions of the irradiation simulation system and the tracking bracket system, obtain the photovoltaic power generation data of the photovoltaic module 201, and evaluate the performance of the photovoltaic tracking bracket control algorithm to be tested.

[0089] In this embodiment, the communication control system is used to control the experimental group to execute actions corresponding to the photovoltaic tracking bracket control algorithm.

[0090] In actual implementation, the irradiation simulation system can be controlled to simulate the corresponding irradiation conditions according to the test conditions of the photovoltaic tracking bracket control algorithm to be tested, and the inclination angle to be adjusted by the tracking bracket body 204 can be calculated according to the collected algorithm input data, and the tracking bracket body 204 can be controlled to adjust the inclination angle. At the same time, the photovoltaic power generation data of the photovoltaic component 201 is obtained, and the performance test results of the photovoltaic tracking bracket control algorithm to be tested are obtained according to the photovoltaic power generation data of the experimental group and the control group.

[0091] For example, the photovoltaic tracking bracket control algorithm to be tested is an inverter data algorithm.

[0092] The data acquisition system collects the short-circuit current I of the photovoltaic module 201 sc , which is converted into power Among them, P max,STC and I sc,STC They are respectively the maximum power and short-circuit current under standard test conditions on the nameplate parameters of PV module 201.

[0093] Based on the output power of photovoltaic module 201 and the total irradiation value IRR of the slope F The relationship formula is used to obtain the current irradiation value: IRR F =f(P max ); Based on the slope irradiance decomposition algorithm GTI Fand the current angle angle of the current tracking bracket body 204, the total irradiance on the inclined surface can be decomposed into the total horizontal irradiance GHI, the direct irradiance DNI and the horizontal scattered irradiance DHI, that is: [GHI, DNI, DHI] = GTI F (IRR F ).

[0094] Then, by exhaustive method, according to the inclined plane irradiation calculation model, the theoretical inclination angle angle of the tracking bracket body 204 receiving the most irradiance is calculated. best And send it to the bracket controller corresponding to the experimental group, so as to control the tracking bracket body 204 to rotate to the theoretical inclination angle, obtain photovoltaic power generation data, and determine the performance test result of the inverter data algorithm.

[0095] For another example, the photovoltaic tracking bracket control algorithm to be tested is an irradiation data algorithm.

[0096] The data acquisition system collects the total horizontal irradiance value GHI, based on the horizontal irradiance decomposition algorithm GTI H , the total horizontal irradiance can be decomposed into direct irradiance DNI and horizontal scattered irradiance DHI, that is: [DNI, DHI] = GTI H (GHI).

[0097] Then, through the exhaustive method, according to the inclined plane irradiation calculation model, the theoretical inclination angle of the tracking bracket that receives the most irradiance is calculated. best And send it to the bracket controller corresponding to the experimental group, so as to control the tracking bracket body 204 to rotate to the theoretical inclination angle, obtain photovoltaic power generation data, and determine the performance test result of the inverter data algorithm.

[0098] In this embodiment, the performance testing platform can simulate various irradiation, environmental conditions and site conditions in the laboratory, and can more conveniently, quickly and accurately verify the reliability and accuracy of the photovoltaic tracking bracket control algorithm, as well as the improvement in power generation compared to the conventional photovoltaic tracking bracket 200 (the control group executes the actions corresponding to the benchmark bracket control algorithm), thereby accelerating the speed of research and development iteration of the photovoltaic tracking bracket 200 intelligent tracking product.

[0099] According to the performance testing platform of the photovoltaic tracking bracket control algorithm provided in the embodiment of the present application, by designing an irradiation simulation system and a tracking bracket system, various irradiation, environmental conditions and site conditions can be simulated to test the performance of the photovoltaic tracking bracket control algorithm, and the reliability and accuracy of the control algorithm adopted for photovoltaic bracket tracking can be verified more conveniently, quickly and accurately.

[0100] In some embodiments, the photovoltaic tracking bracket 200 includes a tracking bracket body 204 and photovoltaic components 201 installed on two opposite sides of the tracking bracket body 204 .

[0101] In this embodiment, photovoltaic modules 201 are installed on both sides of the photovoltaic tracking bracket 200, so that the photovoltaic tracking bracket control algorithm such as the bifacial module intelligent algorithm can be tested.

[0102] like Figure 4 As shown, independent photovoltaic modules 201 are installed on two opposite sides of the tracking bracket body 204, and the location and arrangement of the photovoltaic tracking bracket 200 need to ensure that the photovoltaic modules 201 on the front and back sides are not blocked by shadows.

[0103] In some embodiments, a plurality of photovoltaic tracking brackets 200 are arranged in a plurality of rows, each row includes at least two photovoltaic tracking brackets 200, and the photovoltaic tracking brackets 200 in each row are divided into an experimental group and a control group.

[0104] In actual implementation, the movement direction of the solar simulator 120 can be from east to west, that is, simulating the sun rising in the east and setting in the west. Multiple photovoltaic tracking brackets 200 can be arranged in multiple rows along the east-west direction. For each row including two or more photovoltaic tracking brackets 200, each row of photovoltaic tracking brackets 200 is divided into an experimental group and a control group.

[0105] like Figure 5 As shown, the photovoltaic tracking brackets 200 can be arranged into three rows along the east-west direction, each row includes two photovoltaic tracking brackets 200, and the three photovoltaic tracking brackets 200 in the upper part of the figure are used as the experimental group, and the three photovoltaic tracking brackets 200 in the lower part of the figure are used as the experimental group.

[0106] In this embodiment, the experimental group and the control group are in the same row, and the irradiation environment of the photovoltaic components 201 of the experimental group and the control group is the same, so the performance of the photovoltaic tracking bracket control algorithm can be tested more accurately.

[0107] The embodiment of the present application also provides a performance testing method for a photovoltaic tracking bracket control algorithm, which can be applied to the above-mentioned performance testing platform for the photovoltaic tracking bracket control algorithm.

[0108] Among them, the executor of the performance test method of the photovoltaic tracking bracket control algorithm can be the communication control system of the performance test platform, and can be specifically executed by the hardware or software in the communication control system.

[0109] like Figure 6 As shown, the performance testing method of the photovoltaic tracking bracket control algorithm includes: step 610, step 620 and step 630.

[0110] Step 610: Obtain algorithm input data corresponding to the photovoltaic tracking bracket control algorithm to be tested.

[0111] The photovoltaic tracking bracket control algorithm refers to a control algorithm used to adjust the inclination angle of the photovoltaic tracking bracket 200 and control the photovoltaic tracking bracket 200 to track.

[0112] In actual implementation, the photovoltaic tracking bracket control algorithm to be tested can be an inverter data algorithm, an irradiation data algorithm, a bifacial component intelligent algorithm or an intelligent reverse tracking algorithm, etc.

[0113] In this step, according to the calculation requirements of the photovoltaic tracking bracket control algorithm to be tested, the algorithm input data corresponding to the photovoltaic tracking bracket control algorithm to be tested is obtained through the data acquisition system.

[0114] For example, the photovoltaic tracking bracket control algorithm to be tested is an inverter data algorithm, and the algorithm input data includes the short-circuit current of the photovoltaic component 201 .

[0115] For another example, the photovoltaic tracking bracket control algorithm to be tested is an irradiation data algorithm, and the algorithm input data includes horizontal irradiation values, which can be collected by the horizontal irradiance detector 150 .

[0116] Step 620: Based on the photovoltaic tracking bracket control algorithm to be tested and the algorithm input data, the irradiation simulation system and the tracking bracket system are controlled to operate, and the photovoltaic power generation data of the photovoltaic tracking bracket 200 of the tracking bracket system is obtained.

[0117] In this step, the irradiation simulation system can be controlled to simulate different lighting environments. According to the algorithm input data and the photovoltaic tracking bracket control algorithm under different lighting environments, the inclination angle that needs to be adjusted for the tracking bracket body 204 is calculated, and the tracking bracket system is controlled to track the sun, while obtaining the photovoltaic power generation data of the photovoltaic tracking bracket 200.

[0118] For example, the photovoltaic tracking bracket control algorithm to be tested is an inverter data algorithm. According to the short-circuit current of the photovoltaic component 201 collected by the data acquisition system and the inverter data algorithm, the theoretical inclination angle of the tracking bracket body 204 that receives the most irradiance is calculated and sent to the corresponding bracket controller, thereby controlling the tracking bracket body 204 to rotate to the theoretical inclination angle and obtaining photovoltaic power generation data.

[0119] For another example, the photovoltaic tracking bracket control algorithm to be tested is an irradiation data algorithm. According to the horizontal total irradiation value collected by the data acquisition system, the theoretical inclination angle of the tracking bracket that receives the most irradiance is calculated and sent to the corresponding bracket controller, thereby controlling the tracking bracket body 204 to rotate to the theoretical inclination angle and obtaining photovoltaic power generation data.

[0120] Step 630: Determine the performance test result of the photovoltaic tracking bracket control algorithm to be tested based on the photovoltaic power generation data.

[0121] In actual implementation, a plurality of photovoltaic tracking brackets 200 may be divided into an experimental group and a control group, wherein the experimental group is used to execute actions corresponding to the photovoltaic tracking bracket control algorithm to be tested.

[0122] The control group serves as a control for the experimental group. The control group can execute actions corresponding to the benchmark bracket control algorithm to test the improvement in power generation of the photovoltaic tracking bracket control algorithm compared with the benchmark bracket control algorithm.

[0123] The control group may not execute any support control algorithm, that is, the tracking support body 204 of the control group does not adjust the inclination angle of the photovoltaic component 201, so as to test the power generation increased by adjusting the inclination angle by the photovoltaic tracking support control algorithm.

[0124] According to the performance testing method of the photovoltaic tracking bracket control algorithm provided in the embodiment of the present application, the performance of the photovoltaic tracking bracket control algorithm is tested by simulating various radiation, environmental conditions and site conditions through the radiation simulation system and the tracking bracket system, which can more conveniently, quickly and accurately verify the reliability and accuracy of the control algorithm used for photovoltaic bracket tracking.

[0125] In some embodiments, the photovoltaic tracking bracket control algorithm to be tested is an inverter data algorithm, an irradiation data algorithm or a bifacial component intelligent algorithm. Step 620, based on the photovoltaic tracking bracket control algorithm to be tested and the algorithm input data, controls the irradiation simulation system and the tracking bracket system to act, and obtains the photovoltaic power generation data of the photovoltaic tracking bracket 200 of the tracking bracket system, which may include:

[0126] Control the irradiation simulation system to simulate full irradiation weather conditions, and control the experimental group and the control group of the tracking bracket system to track according to the reference bracket control algorithm;

[0127] When it is determined that the power generation difference between the experimental group and the control group corresponding to tracking according to the benchmark bracket control algorithm is less than the first target threshold, the irradiation simulation system is controlled to simulate multiple scattered irradiation weather conditions, the experimental group is controlled to track according to the photovoltaic tracking bracket control algorithm to be tested and the control group is controlled to track according to the benchmark bracket control algorithm, and the photovoltaic power generation data of the control group and the experimental group in at least one sampling period are obtained, and the scattering proportions of multiple scattered irradiation weather conditions are different.

[0128] Under full irradiation weather conditions, both the experimental group and the control group are tracked according to the benchmark bracket control algorithm. When the corresponding power generation difference between the experimental group and the control group tracked according to the benchmark bracket control algorithm is less than the first target threshold, the experimental group is then controlled to track according to the inverter data algorithm, irradiation data algorithm or bifacial component intelligent algorithm to eliminate the influence of other factors except the bracket control algorithm between the experimental group and the control group, so as to ensure the accuracy of the test.

[0129] The first target threshold is a critical value of a power generation difference of a pre-set device.

[0130] When the power generation difference between the experimental group and the control group tracked according to the reference support control algorithm is less than the first target threshold, the power generation error between the experimental group and the control group is within a normal range.

[0131] When the power generation difference between the experimental group and the control group tracked according to the benchmark bracket control algorithm is greater than or equal to the first target threshold, the power generation error between the experimental group and the control group exceeds the normal range. The experimental group and the control group can eliminate the difference between the experimental group and the control group by arranging components or replacing components.

[0132] In this embodiment, after ensuring that there is no significant difference between the experimental group and the control group, the irradiation simulation system is controlled to simulate multiple scattered irradiation weather conditions with different scattering ratios, the experimental group is controlled to track according to the photovoltaic tracking bracket control algorithm to be tested and the control group is controlled to track according to the benchmark bracket control algorithm, the photovoltaic power generation data of the control group and the experimental group in one or more sampling periods are obtained, and the inverter data algorithm, irradiation data algorithm or bifacial component intelligent algorithm are performance tested.

[0133] In some embodiments, controlling the radiation simulation system to simulate multiple diffuse radiation weather conditions may include:

[0134] In the first time period of the sampling cycle, the scattered radiation level of the radiation simulation system is controlled to decrease, and in the second time period of the sampling cycle, the scattered radiation level of the radiation simulation system is controlled to increase first and then decrease, and the duration of the first time period is greater than that of the second time period.

[0135] In actual implementation, a sampling period may be divided into a plurality of time periods of different durations, and the time periods may be divided into a first time period and a second time period, wherein the duration of the first time period is greater than the duration of the second time period.

[0136] For example, a sampling cycle has a duration of 16 hours, the first time period is a time period of 1 hour, the second time period is a time period of 10 minutes, and a sampling cycle includes 15 first time periods and 6 second time periods. The first time periods and the second time periods can be randomly mixed and arranged.

[0137] In this embodiment, during the first time period, the scattered radiation level of the irradiation simulation system is controlled to change from a high scattered radiation weather state to a non-high scattered radiation weather state, that is, the scattered radiation level is reduced, simulating the process of the sun gradually moving from east to west, and recording the photovoltaic power generation data and bracket operation status data of the experimental group and the control group.

[0138] It is understandable that the degree of scattered radiation can be adjusted by controlling the start and stop and the illumination intensity of the multiple lighting devices 130 of the scattered radiation simulation device.

[0139] In this embodiment, during the second time period, the scattered radiation level of the irradiation simulation system is controlled to change from a non-high scattered radiation weather state to a high scattered radiation weather state, and then to a non-high scattered radiation weather state. The photovoltaic power generation data and bracket operation status data of the experimental group and the control group are recorded to detect the impact of short-term weather changes on the inclination adjustment of the tracking bracket body 204.

[0140] In actual implementation, short-term weather changes have little impact on the tilt adjustment of the tracking bracket body 204, that is, the data difference between the experimental group and the control group in the second period is not large.

[0141] Taking the inverter data algorithm and irradiation data algorithm as examples, perform the algorithm performance test according to the following steps.

[0142] Step 1: Select 3 rows of 200 photovoltaic tracking brackets as the experimental group and the control group. Both the experimental group and the control group run the benchmark bracket control algorithm, requiring that the power generation difference between the experimental group and the control group under full-power irradiation weather is less than 1%.

[0143] Step 2: Simulate weather conditions with different proportions of scattered radiation, high scattered radiation weather and non-high scattered radiation weather. The control group tracks according to the benchmark bracket control algorithm, and the experimental group starts intelligent tracking according to the photovoltaic tracking bracket control algorithm to be tested.

[0144] In this step, the support operating angle and power generation data of the experimental group and the control group under different proportions of scattered radiation weather are recorded, and the change curve and difference curve of the support operating angle and power generation data can also be displayed simultaneously.

[0145] In the second test period (within 15 minutes), the weather changed from non-high-scattered radiation weather to high-scattered radiation weather, and then to non-high-scattered radiation weather in a short period of time, and the operating status of the brackets in the experimental group and the control group was checked.

[0146] After the long period of high-scatter radiation weather in the first test period (more than 15 minutes), the weather was switched to non-high-scatter radiation weather, and the operating status of the brackets in the experimental group and the control group was recorded.

[0147] The cumulative power of the experimental group and the control group brackets under different proportions of scattered radiation weather for at least one full day (sunrise-sunset) was collected, among which P 实验 is the cumulative power of the experimental group, P 对照 is the cumulative power of the control group, and the actual power generation gain of the experimental group bracket is calculated

[0148] For the bifacial module intelligent algorithm, the algorithm input data includes the horizontal total irradiance value GHI, according to the horizontal irradiance decomposition algorithm GTI HThe total horizontal irradiance can be decomposed into direct irradiance DNI and horizontal scattered irradiance DHI, that is, [DNI, DHI] = GTI H (GHI).

[0149] For the bifacial module intelligent algorithm, the back irradiation of the module can be calculated by the visual coefficient method. The specific calculation formula is as follows:

[0150]

[0151] Among them, E r represents the back irradiation of the module, ρ g Represents ground reflectivity; A ush Represents the area of ​​the non-shadow area on the ground; A sh Indicates the ground shadow area; A n Indicates the area of ​​the tracking support system; VF ush VF represents the viewing angle factor of the non-shadow area on the surface to the back of the bifacial module; sh Represents the viewing angle factor of the ground shadow area to the back of the bifacial module, ρ m VF is the reflectivity of the front surface of the rear component; m VF is the viewing angle coefficient between the rear components and the back, and the visual coefficient VF ush 、VF sh 、VF m , both represent the percentage of irradiance from the reflecting surface to the receiving surface, and are calculated using the cross-line method of the view factor model.

[0152] Then, through an exhaustive method, according to the inclined plane irradiation calculation model, the theoretical inclination angle of the tracking bracket body 204 that receives the most irradiance is calculated.

[0153] For the bifacial component intelligent algorithm, the real-time short-circuit current I of the front component is collected. sc and the short-circuit current I of the rear panel sc,r , converting it to irradiance: Among them, G STC is the solar irradiance value under standard test conditions, I sc,STC It is the short-circuit current under standard test conditions on the component nameplate parameters.

[0154] Taking the bifacial module intelligent algorithm as an example, follow the steps below to test the algorithm performance.

[0155] Step 1: Select 3 rows of photovoltaic tracking brackets 200 as the experimental group and the control group. The same and independent photovoltaic modules 201 are installed on the front and back of the experimental group and the control group. Both the experimental group and the control group run the benchmark bracket control algorithm, requiring that the power generation difference between the experimental group and the control group under full-power irradiation weather is less than 1%.

[0156] In this embodiment, materials with different reflectivity are laid on the ground, and the ground reflectivity is recorded to facilitate calculation of the theoretical inclination angle of the tracking bracket body 204 that receives the most irradiance.

[0157] Step 2: Simulate weather conditions with different proportions of scattered radiation, high scattered radiation weather and non-high scattered radiation weather. The control group tracks according to the benchmark bracket control algorithm, and the experimental group starts intelligent tracking according to the photovoltaic tracking bracket control algorithm to be tested.

[0158] The cumulative power generation of the experimental group and the control group brackets for at least one full day under different proportions of scattered radiation weather is collected, wherein the actual power generation gain of the experimental group bracket is calculated to determine the algorithm performance test results.

[0159] In some embodiments, a plurality of photovoltaic tracking brackets 200 are arranged in a plurality of rows, each row includes at least two photovoltaic tracking brackets 200, and each row of photovoltaic tracking brackets 200 is divided into an experimental group and a control group. The photovoltaic tracking bracket control algorithm to be tested is an intelligent inverse tracking algorithm. Step 620, based on the photovoltaic tracking bracket control algorithm to be tested and the algorithm input data, controls the irradiation simulation system and the tracking bracket system to act, and obtains the photovoltaic power generation data of the photovoltaic tracking bracket 200 of the tracking bracket system, which may include:

[0160] Control the bracket adjustment device to adjust the distance between the two photovoltaic tracking brackets 200 and the height of the photovoltaic tracking brackets 200, so that the height of the photovoltaic tracking brackets 200 located in the middle of the multiple rows is smaller than the height of the photovoltaic tracking brackets 200 located at both ends of the multiple rows;

[0161] Control the irradiation simulation system to simulate full irradiation weather conditions, and control the experimental group and the control group to track according to the reference support control algorithm during the reverse tracking phase;

[0162] When it is determined that the difference in power generation corresponding to the experimental group and the control group tracking according to the benchmark bracket control algorithm is less than the first target threshold, the experimental group is controlled to track according to the photovoltaic tracking bracket control algorithm to be tested, and the control group is controlled to track according to the benchmark bracket control algorithm, and the photovoltaic power generation data of the control group and the experimental group in at least one sampling period are obtained.

[0163] In this embodiment, the photovoltaic tracking brackets 200 are arranged in multiple rows. Before executing the benchmark bracket control algorithm to eliminate the difference between the experimental group and the control group, the bracket spacing and height of the multiple rows of photovoltaic tracking brackets 200 need to be adjusted so that there is a height difference between the brackets of the experimental group and the control group, forming an uneven terrain in which the middle bracket is lower than the bracket points on both sides.

[0164] After adjusting the terrain of the photovoltaic tracking bracket 200, the reference bracket control algorithm is first executed to eliminate the difference between the experimental group and the control group, and then the experimental group is controlled to execute the intelligent reverse tracking algorithm to perform an algorithm performance test.

[0165] For the intelligent reverse tracking algorithm, the algorithm input data includes longitude La, latitude Lo, time time, installation spacing D PV , slope slope2, horizontal total irradiance GHI and other data are input into the algorithm to calculate the tracking angles of different rows of brackets.

[0166] Take the case where a plurality of photovoltaic tracking brackets 200 are arranged in three rows from east to west as an example.

[0167] For the first row of brackets, which are not affected by the terrain, the tracking angle is the conventional tracking angle angle1; for the second row of brackets, the tracking angle angle2 = f(La, Lo, time, D PV2 ,slope2,angle1); for the third row of brackets, its tracking angle angle3=f(La,Lo,time,D PV3 ,slope3,angle2).

[0168] The total received irradiance of the brackets at these three angles is calculated based on the horizontal plane irradiance decomposition algorithm GTI H , the total horizontal irradiance GHI can be decomposed into direct irradiance DNI and horizontal scattered irradiance DHI, [DNI, DHI] = GTI H (GHI).

[0169] Then, the calculation angle of each row of brackets is calculated according to the inclined plane irradiation calculation model to calculate the theoretical irradiance received by each row [IRR1, IRR2, IRR3]. At the same time, since the angle of the rear row tracking bracket will be affected by the angle of the front row tracking bracket, the tracking angles of these three rows of brackets are not fixed values. Through the optimization algorithm, the combined angle with the maximum total irradiance received by these three rows of brackets [angle best1 ,angle best2 ,angle best3 ] and sent it to the corresponding bracket controller, thereby controlling the tracking bracket body 204 to rotate to the corresponding angle.

[0170] For the intelligent reverse tracking algorithm, the algorithm performance test can be performed according to the following steps.

[0171] Step 1: Select 3 rows of photovoltaic tracking brackets 200 as the experimental group and the control group. By adjusting the installation spacing and the height from the ground between the brackets, there is a height difference between the brackets in the experimental group and the control group to form an uneven terrain. The middle bracket is lower than the brackets on both sides, and the relative slope between the arrays is 2% to 8%.

[0172] Step 2: Conduct a comparative experiment during the reverse tracking stage of full-power irradiation weather, and record the shielding status, tracking angle and power generation of the middle bracket of the experimental group and the control group in the morning and afternoon reverse tracking stages respectively, to ensure that the components on the middle bracket maintain the same shielding status and tracking angle, and the power generation difference between the middle bracket of the experimental group and the control group is ≤1%.

[0173] Step 3: Run the inverse tracking and intelligent inverse tracking algorithms in the experimental group, and record the occlusion conditions, width of the ground light leakage area, tracking angle, and power generation of the experimental and control groups.

[0174] The cumulative power generation of the experimental and control group brackets during the reverse tracking phase and at least one full day (sunrise-sunset) was collected, and the actual power generation gain of the experimental group bracket was calculated to determine the performance test results of the intelligent reverse tracking algorithm.

[0175] In some embodiments, a plurality of photovoltaic tracking brackets 200 are divided into an experimental group and a control group, the experimental group is used for tracking based on the photovoltaic tracking bracket control algorithm to be tested, and the control group is used for tracking based on the reference bracket control algorithm. Step 630, based on the photovoltaic power generation data, determines the performance test result of the photovoltaic tracking bracket control algorithm to be tested, which may include:

[0176] Based on the photovoltaic power generation data of the experimental group and the control group in at least one sampling period, the cumulative power generation of the experimental group and the control group is determined respectively;

[0177] Based on the cumulative power generation of the experimental group and the control group, the performance test results of the photovoltaic tracking bracket control algorithm to be tested are determined.

[0178] In this embodiment, the performance test result of the photovoltaic tracking bracket control algorithm to be tested is determined according to the accumulated power generated in one or more sampling periods.

[0179] For example, the cumulative power generated by the experimental group and the control group brackets under different proportions of scattered radiation weather for at least one full day (sunrise-sunset), where P 实验 is the cumulative power generated by the experimental group, P 对照 is the cumulative power generation of the control group, and the actual power generation gain of the experimental group bracket is calculated Determine the performance test results of the photovoltaic tracking bracket control algorithm to be tested.

[0180] The embodiment of the present application can simulate various radiation and other environmental conditions and site conditions in a laboratory environment through a performance testing platform, and can more conveniently, quickly and accurately verify the reliability and accuracy of the intelligent tracking algorithm of the photovoltaic tracking bracket 200, as well as the improvement in power generation compared to the conventional photovoltaic tracking bracket 200, thereby accelerating the speed of product development and iteration of the photovoltaic tracking bracket 200 intelligent tracking.

[0181] The performance test method of the photovoltaic tracking bracket control algorithm provided in the embodiment of the present application can be executed by a performance test device of the photovoltaic tracking bracket control algorithm. In the embodiment of the present application, the performance test method of the photovoltaic tracking bracket control algorithm executed by the performance test device of the photovoltaic tracking bracket control algorithm is taken as an example to illustrate the performance test device of the photovoltaic tracking bracket control algorithm provided in the embodiment of the present application.

[0182] The embodiment of the present application also provides a performance testing device for a photovoltaic tracking bracket control algorithm, which can be applied to the above-mentioned performance testing platform for the photovoltaic tracking bracket control algorithm.

[0183] like Figure 7 As shown, the performance test device of the photovoltaic tracking bracket control algorithm includes:

[0184] An acquisition module 710 is used to acquire algorithm input data corresponding to the photovoltaic tracking bracket control algorithm to be tested;

[0185] The first processing module 720 is used to control the irradiation simulation system and the tracking bracket system based on the photovoltaic tracking bracket control algorithm to be tested and the algorithm input data, and obtain the photovoltaic power generation data of the photovoltaic tracking bracket 200 of the tracking bracket system;

[0186] The second processing module 730 is used to determine the performance test result of the photovoltaic tracking bracket control algorithm to be tested based on the photovoltaic power generation data.

[0187] According to the performance testing device of the photovoltaic tracking bracket control algorithm provided in the embodiment of the present application, the performance of the photovoltaic tracking bracket control algorithm is tested by simulating various radiation, environmental conditions and site conditions through the radiation simulation system and the tracking bracket system, so that the reliability and accuracy of the control algorithm adopted by the photovoltaic bracket tracking can be verified more conveniently, quickly and accurately.

[0188] In some embodiments, the photovoltaic tracking bracket control algorithm to be tested is an inverter data algorithm, an irradiation data algorithm or a bifacial component intelligent algorithm, and the first processing module 720 is used to control the irradiation simulation system to simulate the full irradiation weather state, and control the experimental group and the control group of the tracking bracket system to track according to the reference bracket control algorithm;

[0189] When it is determined that the power generation difference between the experimental group and the control group corresponding to tracking according to the benchmark bracket control algorithm is less than the first target threshold, the irradiation simulation system is controlled to simulate multiple scattered irradiation weather conditions, the experimental group is controlled to track according to the photovoltaic tracking bracket control algorithm to be tested and the control group is controlled to track according to the benchmark bracket control algorithm, and the photovoltaic power generation data of the control group and the experimental group in at least one sampling period are obtained, and the scattering proportions of multiple scattered irradiation weather conditions are different.

[0190] In some embodiments, the first processing module 720 is used to control the scattered radiation level of the radiation simulation system to decrease during the first time period of the sampling cycle, and to control the scattered radiation level of the radiation simulation system to first increase and then decrease during the second time period of the sampling cycle, and the duration of the first time period is greater than the duration of the second time period.

[0191] In some embodiments, a plurality of photovoltaic tracking brackets 200 are arranged in a plurality of rows, each row includes at least two photovoltaic tracking brackets 200, and the photovoltaic tracking brackets 200 in each row are divided into an experimental group and a control group. The photovoltaic tracking bracket control algorithm to be tested is an intelligent reverse tracking algorithm, and the first processing module 720 is used to control the bracket adjustment device to adjust the distance between the photovoltaic tracking brackets 200 and the height of the photovoltaic tracking brackets 200, so that the height of the photovoltaic tracking brackets 200 located in the middle of the plurality of rows is less than the height of the photovoltaic tracking brackets 200 located at both ends of the plurality of rows;

[0192] Control the irradiation simulation system to simulate full irradiation weather conditions, and control the experimental group and the control group to track according to the reference support control algorithm during the reverse tracking phase;

[0193] When it is determined that the difference in power generation corresponding to the experimental group and the control group tracking according to the benchmark bracket control algorithm is less than the first target threshold, the experimental group is controlled to track according to the photovoltaic tracking bracket control algorithm to be tested, and the control group is controlled to track according to the benchmark bracket control algorithm, and the photovoltaic power generation data of the control group and the experimental group in at least one sampling period are obtained.

[0194] In some embodiments, a plurality of photovoltaic tracking brackets 200 are divided into an experimental group and a control group, the experimental group is used for tracking based on the photovoltaic tracking bracket control algorithm to be tested, and the control group is used for tracking based on the reference bracket control algorithm, and the second processing module 730 is used to determine the cumulative power generation of the experimental group and the control group respectively based on the photovoltaic power generation data of the experimental group and the control group in at least one sampling period;

[0195] Based on the cumulative power generation of the experimental group and the control group, the performance test results of the photovoltaic tracking bracket control algorithm to be tested are determined.

[0196] The performance testing device of the photovoltaic tracking bracket control algorithm in the embodiment of the present application can be an electronic device, or a component in the electronic device, such as an integrated circuit or a chip.

[0197] The performance test device of the photovoltaic tracking bracket control algorithm in the embodiment of the present application can be a device with an operating system. The operating system can be an Android operating system, an IOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0198] The performance testing device for the photovoltaic tracking bracket control algorithm provided in the embodiment of the present application can achieve Figure 6 To avoid repetition, the various processes implemented by the method embodiment are not described here.

[0199] In some embodiments, Figure 8 As shown, an embodiment of the present application also provides an electronic device 800, including a processor 801, a memory 802, and a computer program stored in the memory 802 and executable on the processor 801. When the program is executed by the processor 801, each process of the embodiment of the performance test method of the above-mentioned photovoltaic tracking bracket control algorithm is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0200] It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and non-mobile electronic devices mentioned above.

[0201] An embodiment of the present application also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the various processes of the performance testing method embodiment of the above-mentioned photovoltaic tracking bracket control algorithm are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0202] The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.

[0203] An embodiment of the present application also provides a computer program product, including a computer program, which implements the performance testing method of the photovoltaic tracking bracket control algorithm when executed by a processor.

[0204] The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.

[0205] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the performance testing method embodiment of the above-mentioned photovoltaic tracking bracket control algorithm, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0206] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0207] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0208] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 should not be understood as a limitation on the present application.

[0209] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0210] In the description of the present application, “plurality” means two or more.

[0211] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0212] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0213] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0214] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A performance test platform for photovoltaic tracking bracket control algorithm, characterized in that: include: An irradiation simulation system, the irradiation simulation system comprising a mounting bracket, a solar simulator and a scattered irradiation simulation device, the solar simulator and the scattered irradiation simulation device being mounted on the mounting bracket; A tracking bracket system, the tracking bracket system is located in the accommodation space defined by the mounting bracket, the tracking bracket system includes a plurality of photovoltaic tracking brackets and a bracket adjustment device, the bracket adjustment device is used to adjust the distance between the photovoltaic tracking brackets and the height of the photovoltaic tracking brackets; A data acquisition system, the data acquisition system is used to collect algorithm input data corresponding to the photovoltaic tracking bracket control algorithm to be tested and photovoltaic power generation data of the photovoltaic tracking bracket; A communication control system, wherein the communication control system is connected to the irradiation simulation system, the tracking bracket system and the data acquisition system, and the communication control system is used to control the actions of the irradiation simulation system and the tracking bracket system based on the photovoltaic tracking bracket control algorithm to be tested and the algorithm input data, and determine the performance test result of the photovoltaic tracking bracket control algorithm to be tested based on the photovoltaic power generation data; The multiple photovoltaic tracking brackets are divided into an experimental group and a control group, and the communication control system is used to control the experimental group to execute actions corresponding to the photovoltaic tracking bracket control algorithm.

2. The performance test platform of the photovoltaic tracking bracket control algorithm according to claim 1 is characterized in that: The mounting bracket is a spherical grid structure, and the scattered radiation simulation device includes a plurality of lighting devices, and the plurality of lighting devices are evenly arranged on the spherical grid structure.

3. The performance test platform of the photovoltaic tracking bracket control algorithm according to claim 1 is characterized in that: The photovoltaic tracking bracket comprises a tracking bracket body and photovoltaic components installed on two opposite sides of the tracking bracket body.

4. The performance test platform of the photovoltaic tracking bracket control algorithm according to claim 1 is characterized in that: The plurality of photovoltaic tracking brackets are arranged in a plurality of rows, each row includes at least two photovoltaic tracking brackets, and the photovoltaic tracking brackets in each row are divided into the experimental group and the control group.

5. The performance test platform of the photovoltaic tracking bracket control algorithm according to any one of claims 1 to 4, characterized in that: The radiation simulation system also includes a first driving device and a second driving device; The first driving device is connected to the solar simulator, and the first driving device is used to adjust the altitude angle of the solar simulator; The second driving device is connected to the solar simulator, and the second driving device is used to adjust the azimuth angle of the solar simulator.

6. A performance test method for a photovoltaic tracking bracket control algorithm, characterized in that: The method is applied to a performance test platform for a photovoltaic tracking bracket control algorithm according to any one of claims 1 to 5, and the method comprises: Obtain algorithm input data corresponding to the photovoltaic tracking bracket control algorithm to be tested; Based on the photovoltaic tracking bracket control algorithm to be tested and the algorithm input data, control the actions of the irradiation simulation system and the tracking bracket system, and obtain the photovoltaic power generation data of the photovoltaic tracking bracket of the tracking bracket system; Based on the photovoltaic power generation data, a performance test result of the photovoltaic tracking bracket control algorithm to be tested is determined.

7. The performance testing method of the photovoltaic tracking bracket control algorithm according to claim 6 is characterized in that: The photovoltaic tracking bracket control algorithm to be tested is an inverter data algorithm, an irradiation data algorithm or a bifacial component intelligent algorithm. Based on the photovoltaic tracking bracket control algorithm to be tested and the algorithm input data, the irradiation simulation system and the tracking bracket system are controlled to operate, and the photovoltaic power generation data of the photovoltaic tracking bracket of the tracking bracket system is obtained, including: Controlling the irradiation simulation system to simulate full irradiation weather conditions, and controlling the experimental group and the control group of the tracking support system to track according to the reference support control algorithm; When it is determined that the power generation difference between the experimental group and the control group when tracking according to the benchmark bracket control algorithm is less than the first target threshold, the irradiation simulation system is controlled to simulate multiple scattered irradiation weather conditions, the experimental group is controlled to track according to the photovoltaic tracking bracket control algorithm to be tested and the control group is controlled to track according to the benchmark bracket control algorithm, and the photovoltaic power generation data of the control group and the experimental group in at least one sampling period are obtained, and the scattering proportions of the multiple scattered irradiation weather conditions are different.

8. The performance testing method of the photovoltaic tracking bracket control algorithm according to claim 7 is characterized in that: The controlling the radiation simulation system to simulate a plurality of scattered radiation weather conditions comprises: The scattered radiation level of the radiation simulation system is controlled to decrease in the first time period of the sampling cycle, and the scattered radiation level of the radiation simulation system is controlled to increase first and then decrease in the second time period of the sampling cycle, and the duration of the first time period is longer than the duration of the second time period.

9. The performance testing method of the photovoltaic tracking bracket control algorithm according to claim 6 is characterized in that: The plurality of photovoltaic tracking brackets are arranged in a plurality of rows, each row includes at least two photovoltaic tracking brackets, and the photovoltaic tracking brackets in each row are divided into the experimental group and the control group. The photovoltaic tracking bracket control algorithm to be tested is an intelligent inverse tracking algorithm. Based on the photovoltaic tracking bracket control algorithm to be tested and the algorithm input data, the irradiation simulation system and the tracking bracket system are controlled to operate, and the photovoltaic power generation data of the photovoltaic tracking bracket of the tracking bracket system is obtained, including: Control the bracket adjustment device to adjust the distance between the two photovoltaic tracking brackets and the height of the photovoltaic tracking brackets, so that the height of the photovoltaic tracking brackets located in the middle of the multiple rows is smaller than the height of the photovoltaic tracking brackets located at both ends of the multiple rows; Controlling the irradiation simulation system to simulate a full irradiation weather state, and controlling the experimental group and the control group to track according to a reference support control algorithm during a reverse tracking phase; When it is determined that the difference in power generation corresponding to the experimental group and the control group tracking according to the benchmark bracket control algorithm is less than the first target threshold, the experimental group is controlled to track according to the photovoltaic tracking bracket control algorithm to be tested, and the control group is controlled to track according to the benchmark bracket control algorithm, and the photovoltaic power generation data of the control group and the experimental group in at least one sampling period are obtained.

10. The performance testing method of the photovoltaic tracking bracket control algorithm according to any one of claims 6 to 9, characterized in that: The plurality of photovoltaic tracking brackets are divided into an experimental group and a control group, the experimental group is used for tracking based on the photovoltaic tracking bracket control algorithm to be tested, and the control group is used for tracking based on the reference bracket control algorithm, and the performance test result of the photovoltaic tracking bracket control algorithm to be tested is determined based on the photovoltaic power generation data, including: Based on the photovoltaic power generation data of the experimental group and the control group in at least one sampling period, respectively determine the cumulative power generation of the experimental group and the control group; Based on the cumulative power generation of the experimental group and the control group, a performance test result of the photovoltaic tracking bracket control algorithm to be tested is determined.

11. A performance test device for a photovoltaic tracking bracket control algorithm, characterized in that: The device is applied to the performance test platform of the photovoltaic tracking bracket control algorithm according to any one of claims 1 to 5, and the device comprises: An acquisition module is used to acquire algorithm input data corresponding to the photovoltaic tracking bracket control algorithm to be tested; A first processing module is used to control the actions of the irradiation simulation system and the tracking bracket system based on the photovoltaic tracking bracket control algorithm to be tested and the algorithm input data, and to obtain the photovoltaic power generation data of the photovoltaic tracking bracket of the tracking bracket system; The second processing module is used to determine the performance test result of the photovoltaic tracking bracket control algorithm to be tested based on the photovoltaic power generation data.

12. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the performance testing method of the photovoltaic tracking bracket control algorithm as described in any one of claims 6-10 is implemented.

13. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the performance testing method of the photovoltaic tracking bracket control algorithm as described in any one of claims 6 to 10 is implemented.

14. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, a performance testing method for a photovoltaic tracking bracket control algorithm as described in any one of claims 6 to 10 is implemented.

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