A new energy photovoltaic power generation and energy storage method and related equipment

Abstract

The application discloses a new energy photovoltaic power generation energy storage method and related equipment. The method comprises the following steps: acquiring cloud layer information in a preset range of a photovoltaic array, wherein the cloud layer information comprises an independent cloud layer area, an independent cloud layer spacing and an independent cloud layer number; and determining an MPPT maximum power point tracking strategy of the photovoltaic array in a current power tracking period based on the independent cloud layer area, the independent cloud layer spacing and the independent cloud layer number in an observation disturbance tracking method and a constant voltage tracking method. The method can solve the problem that the equipment and energy cost are relatively high in the maximum power point tracking of the photovoltaic.

Description

TECHNICAL FIELD

[0001] The present specification relates to the field of photovoltaics, and more specifically, to a new energy photovoltaic power generation and energy storage method and related equipment. BACKGROUND

[0002] The full name of the MPPT controller is "Maximum Power Point Tracking" (Maximum Power Point Tracking) solar controller, which is an upgraded product of the traditional solar charging and discharging controller. The so-called maximum power point tracking refers to the controller that can detect the power generation voltage of the solar panel in real time and track the highest voltage and current value (VI) to charge the battery with the highest efficiency. At present, in the case of pursuing high tracking accuracy for a large area photovoltaic array, a large amount of computing resources are consumed, and the equipment and energy costs are high. SUMMARY

[0003] A series of simplified concepts are introduced in the summary section, which will be further described in detail in the specific embodiment section. The summary section of the present application does not mean to attempt to limit the key features and necessary technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0004] In order to solve the problem of high equipment and energy cost in the maximum power point tracking of photovoltaics, in the first aspect, the present application proposes a new energy photovoltaic power generation and energy storage method, which comprises:

[0005] Obtain cloud information in a preset range of a photovoltaic array, the cloud information comprising: an independent cloud area, an independent cloud spacing and an independent cloud number;

[0006] Determine the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period based on the independent cloud area, the independent cloud spacing and the independent cloud number in the observation perturbation tracking method and the constant voltage tracking method.

[0007] Optionally, the determination of the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period based on the independent cloud area, the independent cloud spacing and the independent cloud number in the observation perturbation tracking method and the constant voltage tracking method comprises:

[0008] In the case that the independent cloud area is less than a preset area, the independent cloud spacing is within a preset spacing range, and the independent cloud number is greater than a preset number, the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period is determined as the constant voltage tracking method.

[0009] Optionally, the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period is determined based on the independent cloud layer area, the independent cloud layer spacing, and the independent cloud layer number in the observation perturbation tracking method and the constant voltage tracking method, and the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period is determined based on the independent cloud layer area, the independent cloud layer spacing, and the independent cloud layer number in the observation perturbation tracking method and the constant voltage tracking method, comprising:

[0010] In a case where the independent cloud layer area is greater than a preset area, or the independent cloud layer spacing is outside a preset spacing range, or the independent cloud layer number is less than a preset number, the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period is determined as the observation perturbation tracking method.

[0011] Optionally, the method further comprises:

[0012] Obtaining illumination information and precipitation weather information within a preset range of the photovoltaic array;

[0013] In a case where the illumination intensity is greater than a preset intensity and the precipitation weather information indicates that there is precipitation, adjusting the photovoltaic array to face away from the sky.

[0014] Optionally, the method further comprises:

[0015] Obtaining illumination information, precipitation weather information, wind direction information, and wind speed information within a preset range of the photovoltaic array;

[0016] In a case where the illumination intensity is greater than a preset intensity and the precipitation weather information indicates that there is precipitation, adjusting the orientation of the photovoltaic array based on the wind direction information and the wind speed information.

[0017] Optionally, the method further comprises

[0018] Obtaining the cloud layer information, the wind direction information, and the wind speed information of a neighboring area within a preset range of the photovoltaic array;

[0019] Based on the wind direction information, the wind speed information, and the relative position of the neighboring area to the preset range, predicting an influence period of the cloud layer information on the photovoltaic array within the preset range;

[0020] Based on the independent cloud layer area, the independent cloud layer spacing, and the independent cloud layer number, predicting the MPPT maximum power point tracking strategy of the photovoltaic array in the influence period in the observation perturbation tracking method and the constant voltage tracking method.

[0021] Optionally, the period is greater than an active perturbation frequency of the observation perturbation tracking, and the method further comprises:

[0022] Obtaining historical same-period temperature change information within a preset range of the photovoltaic array;

[0023] In a case where a temperature change in a historical same period of a current period is greater than a preset difference value, an influence of the independent cloud layer area, the independent cloud layer spacing, and the independent cloud layer number on the maximum power point tracking strategy selection is ignored.

[0024] In a second aspect, the present application further provides a new energy photovoltaic power generation and energy storage device, comprising:

[0025] An acquisition unit is configured to acquire cloud layer information within a preset range of a photovoltaic array, wherein the cloud layer information comprises an independent cloud layer area, an independent cloud layer spacing, and an independent cloud layer number.

[0026] A control unit is configured to determine, based on the independent cloud layer area, the independent cloud layer spacing, and the independent cloud layer number, a maximum power point tracking (MPPT) strategy of the photovoltaic array in a current power tracking period from among an observation perturbation tracking method and a constant voltage tracking method.

[0027] In a third aspect, an electronic device is provided, which comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor is configured to implement the steps of the new energy photovoltaic power generation and energy storage method according to any one of the first aspect when executing the computer program stored in the memory.

[0028] In a fourth aspect, the present application further provides a computer readable storage medium, which stores a computer program, and the computer program is executable on a processor to implement the new energy photovoltaic power generation and energy storage method according to any one of the first aspect.

[0029] In summary, the new energy photovoltaic power generation and energy storage method provided by the present application comprises: acquiring cloud layer information within a preset range of a photovoltaic array, wherein the cloud layer information comprises an independent cloud layer area, an independent cloud layer spacing, and an independent cloud layer number; and determining, based on the independent cloud layer area, the independent cloud layer spacing, and the independent cloud layer number, a maximum power point tracking (MPPT) strategy of the photovoltaic array in a current power tracking period from among an observation perturbation tracking method and a constant voltage tracking method. Thus, in a case where the cloud layers where the photovoltaic array is located are dispersed and the number of the cloud layers is large, although the observation perturbation tracking method and other closed-loop tracking methods can accurately determine the maximum power point, the calculation amount of the observation perturbation tracking method is too large and the overall effect is poor due to the continuous switching of the gaps and cloud layer blockages caused by the movement of a large number of cloud layers. Therefore, the calculation resources are effectively saved. In particular, in a large photovoltaic array area, accurately and rapidly analyzing the maximum power point of each photovoltaic unit requires a very high processing capability of the controller, consumes a large amount of electric energy and processor, and the periodic change of the maximum power point tracking strategy based on the cloud layer information can keep the timely switching of different maximum power point tracking strategies, thereby ensuring the accuracy of the selection of the maximum power point while saving the calculation resources and energy.

[0030] The new energy photovoltaic power generation energy storage method of the present application, other advantages, objects and features of the present application will be embodied in part by the following description, and part will be understood by those skilled in the art through the study and practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0031] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments with reference made to the accompanying drawings. The drawings are for purposes of illustration only and are not intended to be limiting in any respect. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views, wherein:

[0032] Figure 1 A new energy photovoltaic power generation energy storage method flowchart is provided for the embodiments of the present application;

[0033] Figure 2 A new energy photovoltaic power generation energy storage device structure diagram is provided for the embodiments of the present application;

[0034] Figure 3 A new energy photovoltaic power generation energy storage electronic device structure diagram is provided for the embodiments of the present application. DETAILED DESCRIPTION

[0035] The terms "first", "second", "third", "fourth" and the like in the description and claims of the present application, and above-described drawings (if any) are used to distinguish similar objects, and are not necessarily used to describe a particular sequential or chronological order. It should be understood that the use of such terms is intended to cover the embodiments described herein, unless otherwise expressly specified. In addition, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a list of steps or units is not necessarily limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to such processes, methods, products or devices. The technical solutions in the embodiments of the present application will be described clearly and completely in the following description of the embodiments of the present application with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments.

[0036] In order to solve the problem of high equipment and energy cost in the maximum power point tracking of photovoltaic, please refer to Figure 1 A new energy photovoltaic power generation energy storage method flowchart is provided for the embodiments of the present application, which can specifically include: step S110 and step S120.

[0037] S110, obtain cloud information in a preset range of the photovoltaic array, the cloud information comprising: an independent cloud area, an independent cloud spacing, and an independent cloud number;

[0038] For example, the independent cloud area can be understood as the area of a cloud block not connected to other cloud blocks. The independent cloud spacing is the distance between two unconnected cloud blocks. The independent cloud area and the independent cloud spacing can be the average values of the cloud blocks in the region.

[0039] For example, the preset range can be the range of the region including the photovoltaic array.

[0040] S120, determine the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period based on the independent cloud area, the independent cloud spacing, and the independent cloud number, from the observation disturbance tracking method and the constant voltage tracking method.

[0041] For example, the power tracking period can be the period for reselecting the maximum power point tracking strategy. It can be distinguished from the frequency or period of determining the maximum power point each time.

[0042] For example, the P&O (Perturb and Observe) can use voltage, current, or duty cycle as the reference variable for perturbation. The working principle is to give a perturbed output voltage signal (U+e), then measure and calculate the change of its power P2, and compare it with the power value P1 before perturbation, and adjust the perturbation direction according to the comparison result. The characteristics of this method are simple algorithm, easy to implement, and no complex calculation involved. However, it cannot be stabilized at the maximum power point, and will swing around the stable power with the change of parameters. The perturb and observe method is a widely used MPPT method.

[0043] In summary, the new energy photovoltaic power generation energy storage method provided by the embodiments of the present application acquires cloud layer information in a preset range of a photovoltaic array, the cloud layer information includes: independent cloud layer area, independent cloud layer spacing, and independent cloud layer quantity; and determines an MPPT maximum power point tracking strategy of the photovoltaic array in a current power tracking period based on the independent cloud layer area, the independent cloud layer spacing, and the independent cloud layer quantity in an observation perturbation tracking method and a constant voltage tracking method. Thus, in the case that the cloud layer where the photovoltaic array is located is dispersed and the number of the cloud layer is relatively large, although the observation perturbation tracking method and other closed-loop tracking methods can accurately determine the maximum power point, due to the movement of a large number of cloud layers, the gap, and the switching of cloud layer shielding, the calculation amount of the observation perturbation tracking method is too large and the comprehensive effect is poor, the calculation resources are effectively saved, especially in a large photovoltaic array area power station, the accurate and high-speed analysis of the maximum power point of each photovoltaic unit requires extremely high processing capacity of the controller, consumes a large amount of electric energy and processor, and the periodic transformation of the maximum power point tracking strategy according to the cloud layer information can keep the timely switching of different maximum power point tracking strategies, thereby ensuring that the maximum power point selection is as accurate as possible while saving calculation resources and energy.

[0044] In some examples, the determining the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period based on the independent cloud layer area, the independent cloud layer spacing, and the independent cloud layer quantity in the observation perturbation tracking method and the constant voltage tracking method includes:

[0045] In the case that the independent cloud layer area is less than a preset area, the independent cloud layer spacing is in a preset spacing range, and the independent cloud layer quantity is greater than a preset quantity, the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period is determined as the constant voltage tracking method.

[0046] In some examples, the determining the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period based on the independent cloud layer area, the independent cloud layer spacing, and the independent cloud layer quantity in the observation perturbation tracking method and the constant voltage tracking method includes:

[0047] In the case that the independent cloud layer area is greater than a preset area or the independent cloud layer spacing is outside a preset spacing range or the independent cloud layer quantity is less than a preset quantity, the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period is determined as the observation perturbation tracking method.

[0048] In addition, the method further includes:

[0049] acquiring illumination information and precipitation weather information in a preset range of the photovoltaic array;

[0050] adjust the orientation of the photovoltaic array based on the wind direction information and the wind speed information.

[0051] For example, the surface temperature of the photovoltaic unit in the photovoltaic array is generally high during operation, especially during the period of high light intensity, and the maximum temperature can reach 85°C or even higher. If the surface is cleaned or other rapid cooling operations are performed under this condition, it will cause damage to the photovoltaic unit. In some weather, high-intensity light and precipitation may occur at the same time, which is easy to cause damage to the photovoltaic unit. The above-mentioned precipitation weather information can be data collected by satellite monitoring means through the network or data collected by a rain sensor at a position near the photovoltaic array. Taking the data collected by the rain sensor as an example, at the initial stage of precipitation, there are only a few scattered raindrops, and then the raindrops become dense. Therefore, when the rain sensor collects precipitation, the photovoltaic array is adjusted to face away from the sky. This can greatly protect the photovoltaic unit surface in an extremely high temperature state from the problem of excessive temperature difference caused by rapid and full contact with rainwater, so as to avoid the damage of the photovoltaic unit caused by the rapid formation of a large temperature difference.

[0052] In some examples, further comprising:

[0053] acquire light intensity information, precipitation weather information, wind direction information and wind speed information within a preset range of the photovoltaic array;

[0054] adjust the orientation of the photovoltaic array based on the wind direction information and the wind speed information.

[0055] For example, the wind direction and wind speed can affect the moving direction and speed of the cloud layer and the direction of the precipitation. Therefore, the future arrival time and when the cloud layer within the preset range of the photovoltaic array will arrive at the preset range of the photovoltaic array can be predicted through the wind direction and wind speed. Then, the orientation of the photovoltaic array is adjusted in time based on the wind direction information and the wind speed information. Even the adjustment plan of the orientation of the photovoltaic array can be made in advance. This can greatly protect the photovoltaic unit surface in an extremely high temperature state from the problem of excessive temperature difference caused by rapid and full contact with rainwater, so as to avoid the damage of the photovoltaic unit caused by the rapid formation of a large temperature difference.

[0056] In some examples, further comprising

[0057] acquire the cloud layer information, wind direction information and wind speed information of the adjacent area of the preset range of the photovoltaic array;

[0058] predict the influence period of the cloud layer information on the preset range of the photovoltaic array based on the wind direction information, the wind speed information and the relative position of the adjacent area to the preset range.

[0059] The MPPT maximum power point tracking strategy of the photovoltaic array in the influence period is predicted based on the independent cloud layer area, the independent cloud layer spacing, and the independent cloud layer number in the observation perturbation tracking method and the constant voltage tracking method.

[0060] For example, the wind direction and the wind speed can affect the moving direction and the speed of the cloud layer. Then the future time when the cloud layer not in the preset range of the photovoltaic array reaches the preset range of the photovoltaic array and the time when the cloud layer reaches the preset range of the photovoltaic array can be predicted by the wind direction and the wind speed. Then, in combination with the scheme of selecting the MPPT maximum power point tracking strategy of the photovoltaic array periodically, the influence period can be predicted in advance based on the independent cloud layer area, the independent cloud layer spacing, and the independent cloud layer number in the observation perturbation tracking method and the constant voltage tracking method, and the adjustment plan of the maximum power point tracking strategy of the photovoltaic array can be made in advance.

[0061] In some examples, the period is greater than the active perturbation frequency of the observation perturbation tracking, and the method further comprises:

[0062] Obtaining historical temperature change information of the same period in the preset range of the photovoltaic array;

[0063] In a case where the temperature change of the same period in the current period is greater than a preset difference, the influence of the independent cloud layer area, the independent cloud layer spacing, and the independent cloud layer number on the selection of the maximum power point tracking strategy is ignored.

[0064] It should be noted that in a case where the temperature change is greater than a certain temperature difference, the accuracy of the constant voltage tracking method is very low, and in this case, the influence of the independent cloud layer area, the independent cloud layer spacing, and the independent cloud layer number on the selection of the maximum power point tracking strategy can be ignored. The observation perturbation tracking method can also be directly used as the maximum power point tracking strategy.

[0065] For example, the cloud layer information includes cloud layer charge information, and the method further comprises:

[0066] Obtaining the solar wind speed;

[0067] In a case where the solar wind speed is greater than a preset wind speed and there is a cloud layer with different charges in the preset range, the photovoltaic array is adjusted to face away from the sky.

[0068] It should be noted that the two clouds with different charges in high altitude collide with each other under the action of solar wind, which causes the water vapor content in the air of the local area to be too large, and the water vapor evaporates relatively fast due to solar radiation, which forms the coexistence of strong light and rain, and the high-intensity light and precipitation occur at the same time, which is easy to cause damage to the photovoltaic unit. The problem of excessive temperature difference caused by the rapid contact of the surface of the photovoltaic unit in an extremely high temperature state with rainwater can be greatly protected to avoid the damage of the photovoltaic unit caused by the large temperature difference formed rapidly.

[0069] Please refer to Figure 2 An embodiment of the new energy photovoltaic power generation energy storage device in the present application can include:

[0070] The acquisition unit 21 is configured to acquire the current data buffer amount of the audio and video buffer of the client.

[0071] The control unit 22 is configured to determine the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period based on the independent cloud layer area, the independent cloud layer spacing, and the number of independent cloud layers among the observation disturbance tracking method and the constant voltage tracking method.

[0072] In summary, the new energy photovoltaic power generation energy storage device provided by the embodiment of the present application acquires the cloud layer information in the preset range of the photovoltaic array, and the cloud layer information includes: the independent cloud layer area, the independent cloud layer spacing, and the number of independent cloud layers; and determines the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period based on the independent cloud layer area, the independent cloud layer spacing, and the number of independent cloud layers among the observation disturbance tracking method and the constant voltage tracking method. Therefore, in the case that the cloud layer where the photovoltaic array is located is dispersed and the number of cloud layers is large, although the observation disturbance tracking method and other closed-loop tracking methods can accurately determine the maximum power point, due to the movement of a large number of cloud layers, the gap and the cloud layer shielding are constantly switched, which causes the calculation amount of the observation disturbance tracking method to be too large and the comprehensive effect to be poor. The calculation resources are effectively saved, especially in a large photovoltaic array area, the processing capacity of the controller required for accurately and rapidly analyzing the maximum power point of each photovoltaic unit is extremely high, the power consumption and processor consumption are also large, and the periodic change of the maximum power point tracking strategy according to the cloud layer information can keep the timely switching of different maximum power point tracking strategies, which ensures that the maximum power point selection is as accurate as possible while saving calculation resources and energy.

[0073] As Figure 3 shown, the present application also provides an electronic device 300, which includes a memory 310, a processor 320, and a computer program 311 stored in the memory 320 and executable on the processor, and the processor 320 implements the steps of any method of the new energy photovoltaic power generation energy storage device when executing the computer program 311.

[0074] Obtaining cloud information within a preset range of a photovoltaic array, the cloud information comprising: an independent cloud area, an independent cloud spacing, and an independent cloud number;

[0075] Determining an MPPT maximum power point tracking strategy of the photovoltaic array in a current power tracking period based on the independent cloud area, the independent cloud spacing, and the independent cloud number, among an observation perturbation tracking method and a constant voltage tracking method.

[0076] Optionally, the determining the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period based on the independent cloud area, the independent cloud spacing, and the independent cloud number, among the observation perturbation tracking method and the constant voltage tracking method, comprises:

[0077] In a case where the independent cloud area is less than a preset area, the independent cloud spacing is within a preset spacing range, and the independent cloud number is greater than a preset number, determining that the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period is the constant voltage tracking method.

[0078] Optionally, the determining the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period based on the independent cloud area, the independent cloud spacing, and the independent cloud number, among the observation perturbation tracking method and the constant voltage tracking method, comprises:

[0079] In a case where the independent cloud area is greater than a preset area, or the independent cloud spacing is outside a preset spacing range, or the independent cloud number is less than a preset number, determining that the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period is the observation perturbation tracking method.

[0080] Optionally, the method further comprises:

[0081] Obtaining illumination information and precipitation weather information within a preset range of a photovoltaic array;

[0082] In a case where the illumination intensity is greater than a preset intensity and the precipitation weather information indicates that there is precipitation, adjusting a direction of the photovoltaic array away from the sky.

[0083] Optionally, the method further comprises:

[0084] Obtaining illumination information, precipitation weather information, wind direction information, and wind speed information within a preset range of a photovoltaic array;

[0085] In a case where the illumination intensity is greater than a preset intensity and the precipitation weather information indicates that there is precipitation, adjusting an orientation of the photovoltaic array based on the wind direction information and the wind speed information.

[0086] Optionally, further comprising

[0087] Obtaining the cloud information, the wind direction information and the wind speed information of a preset range of the photovoltaic array;

[0088] Predicting an influence period of the cloud information on the preset range of the photovoltaic array based on the wind direction information, the wind speed information and the relative position of the adjacent area to the preset range.

[0089] Based on the independent cloud area, the independent cloud spacing and the independent cloud number, predicting the MPPT maximum power point tracking strategy of the photovoltaic array in the influence period in the observation disturbance tracking method and the constant voltage tracking method.

[0090] Optionally, the period is greater than the active disturbance frequency of the observation disturbance tracking, and the method further comprises:

[0091] Obtaining historical temperature change information of the same period in the preset range of the photovoltaic array;

[0092] In a case where the temperature change of the same period in the current period is greater than a preset difference value, ignoring the influence of the independent cloud area, the independent cloud spacing and the independent cloud number on the selection of the maximum power point tracking strategy.

[0093] Since the electronic device introduced in the embodiment is a device used in a new energy photovoltaic power generation energy storage device in the embodiment, based on the method introduced in the embodiment, a person skilled in the art can understand the specific implementation of the electronic device in the embodiment and various changes thereof, so the method of how to realize the method in the embodiment is not introduced in detail, as long as the device used in the method in the embodiment is implemented by a person skilled in the art, it belongs to the scope of the application.

[0094] In the specific implementation process, the computer program 311 can realize Figure 1 Any implementation in the corresponding embodiment:

[0095] Obtaining cloud information in a preset range of a photovoltaic array, the cloud information comprising: an independent cloud area, an independent cloud spacing and an independent cloud number;

[0096] Based on the independent cloud area, the independent cloud spacing and the independent cloud number, determining an MPPT maximum power point tracking strategy of the photovoltaic array in a current power tracking period in the observation disturbance tracking method and the constant voltage tracking method.

[0097] Optionally, the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period is determined based on the independent cloud layer area, the independent cloud layer spacing and the independent cloud layer number in the observation perturbation tracking method and the constant voltage tracking method, comprising:

[0098] In the case that the independent cloud layer area is less than a preset area, the independent cloud layer spacing is in a preset spacing range and the independent cloud layer number is greater than a preset number, the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period is determined as the constant voltage tracking method.

[0099] Optionally, the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period is determined based on the independent cloud layer area, the independent cloud layer spacing and the independent cloud layer number in the observation perturbation tracking method and the constant voltage tracking method, comprising:

[0100] In the case that the independent cloud layer area is greater than a preset area or the independent cloud layer spacing is out of a preset spacing range or the independent cloud layer number is less than a preset number, the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period is determined as the observation perturbation tracking method.

[0101] Optionally, further comprising:

[0102] Obtaining the light information and the precipitation weather information in a preset range of the photovoltaic array;

[0103] In the case that the light intensity is greater than a preset intensity and the precipitation weather information is that there is precipitation, adjusting the direction of the photovoltaic array away from the sky.

[0104] Optionally, further comprising:

[0105] Obtaining the light information, the precipitation weather information, the wind direction information and the wind speed information in a preset range of the photovoltaic array;

[0106] In the case that the light intensity is greater than a preset intensity and the precipitation weather information is that there is precipitation, adjusting the direction of the photovoltaic array based on the wind direction information and the wind speed information.

[0107] Optionally, further comprising

[0108] Obtaining the cloud layer information, the wind direction information and the wind speed information of the adjacent area in a preset range of the photovoltaic array;

[0109] Predicting the influence period of the cloud layer information on the preset range of the photovoltaic array based on the wind direction information, the wind speed information and the relative position of the adjacent area to the preset range.

[0110] The MPPT maximum power point tracking strategy of the photovoltaic array in the observation perturbation tracking method and the constant voltage tracking method is predicted based on the independent cloud layer area, the independent cloud layer spacing and the independent cloud layer quantity.

[0111] Optionally, the period is greater than an active perturbation frequency of the observation perturbation tracking, and the method further comprises:

[0112] The historical synchronous temperature change information in a preset range of the photovoltaic array is acquired;

[0113] In a case where the temperature change of the current period is greater than a preset difference value, the influence of the independent cloud layer area, the independent cloud layer spacing and the independent cloud layer quantity on the selection of the maximum power point tracking strategy is ignored.

[0114] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0115] Those skilled in the art will understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take 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 code.

[0116] The present application is described with reference to flowcharts and / or block diagrams according to the methods, devices (systems), and computer program products of the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams 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 computer, or other programmable data processing devices to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a means for implementing the functions specified in the flowcharts and / or block diagrams. Figure 1 The functions specified in one flow or multiple flows and / or blocks Figure 1 The means for implementing the functions specified in one flow or multiple flows and / or blocks.

[0117] These computer program instructions can also be stored in a computer-readable storage medium capable of guiding a computer or other programmable data processing devices to work in a specific manner, so that the instructions stored in the computer-readable storage medium produce a product including instruction means, which implements the functions specified in the flowcharts and / or block diagrams. Figure 1 The functions specified in one flow or multiple flows and / or blocks Figure 1the function specified in the one or more blocks.

[0118] These computer program instructions can also be loaded into a computer or other programmable data processing device, so that a series of operational steps are performed on the computer or other programmable data processing device to generate a computer-implemented process, thus the instructions executed on the computer or other programmable data processing device provide a process for implementing the flow Figure 1 the flow or flows and / or blocks Figure 1 the steps of the function specified in the one or more blocks.

[0119] The embodiments of the present application also provide a computer program product, which comprises computer software instructions, when the computer software instructions are run on a processing device, causing the processing device to perform the flow as Figure 1 The flow of the new energy photovoltaic power generation and energy storage in the corresponding embodiments.

[0120] The computer program product comprises one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the flow or function according to the embodiments of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer readable storage medium can be any available medium that the computer can store or the data storage device such as server, data center, etc. integrated with one or more available media. The available media can be magnetic media (for example, floppy disk, hard disk, magnetic tape), optical media (for example, DVD), or semiconductor media (for example, solid state disk (SSD)) and the like.

[0121] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0122] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other manners. For example, the described device embodiments are merely schematic. For example, the division of the units is only a logical function division. For another example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different units, can be indirect couplings or communication connections through some interfaces, devices or units, and can be in electrical, mechanical or other forms.

[0123] The units described as separated components can or can not be physically separated, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. In actual implementation, some or all of the units can be selected according to the actual needs to achieve the purposes of the embodiments.

[0124] In addition, each functional unit in the embodiments of the present application can be integrated in a processing unit, or each unit can exist physically as a separate unit, or two or more units can be integrated in one unit. The above integrated unit can be implemented in the form of hardware, or in the form of a software functional unit.

[0125] When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on such an understanding, the technical solutions of the present application essentially, or the part that contributes to the prior art, or all or a part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods in the embodiments of the present application. The foregoing storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, and various media that can store program codes.

[0126] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A new energy photovoltaic power generation and energy storage method, characterized in that, The method comprises: acquiring cloud information within a preset range of a photovoltaic array, the cloud information comprising: an independent cloud area, an independent cloud spacing, and an independent cloud number; determining an MPPT maximum power point tracking strategy of the photovoltaic array in a current power tracking period based on the independent cloud area, the independent cloud spacing, and the independent cloud number in an observation perturbation tracking method and a constant voltage tracking method; The method further comprises: acquiring the cloud information, wind direction information, and wind speed information of a neighboring area within the preset range of the photovoltaic array; predicting an influence period of the cloud information on the photovoltaic array within the preset range based on the wind direction information, the wind speed information, and a relative position of the neighboring area to the preset range; predicting an MPPT maximum power point tracking strategy of the photovoltaic array in the influence period based on the independent cloud area, the independent cloud spacing, and the independent cloud number in an observation perturbation tracking method and a constant voltage tracking method; The period is greater than an active perturbation frequency of the observation perturbation tracking, and the method further comprises: acquiring historical synchronous temperature change information within the preset range of the photovoltaic array; in a case where a temperature change in a historical synchronous period of the current period is greater than a preset difference, ignoring an influence of the independent cloud area, the independent cloud spacing, and the independent cloud number on selection of the maximum power point tracking strategy.

2. The method of claim 1, wherein, The method of determining the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period based on the independent cloud area, the independent cloud spacing, and the independent cloud number in the observation perturbation tracking method and the constant voltage tracking method comprises: in a case where the independent cloud area is less than a preset area, the independent cloud spacing is within a preset spacing range, and the independent cloud number is greater than a preset number, determining that the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period is the constant voltage tracking method.

3. The method of claim 1, wherein, The method of determining the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period based on the independent cloud area, the independent cloud spacing, and the independent cloud number in the observation perturbation tracking method and the constant voltage tracking method comprises: in a case where the independent cloud area is greater than a preset area, or the independent cloud spacing is outside a preset spacing range, or the independent cloud number is less than a preset number, determining that the MPPT maximum power point tracking strategy of the photovoltaic array in the current power tracking period is the observation perturbation tracking method.

4. The method of claim 1, wherein, The method further comprises: acquiring illumination information and precipitation weather information within the preset range of the photovoltaic array; in a case where the illumination intensity is greater than a preset intensity and the precipitation weather information indicates that there is precipitation, adjusting a direction of the photovoltaic array away from the sky.

5. The method of claim 1, wherein, The method further comprises: acquiring the illumination information, the precipitation weather information, the wind direction information, and the wind speed information within the preset range of the photovoltaic array; in a case where the illumination intensity is greater than a preset intensity and the precipitation weather information indicates that there is precipitation, adjusting an orientation of the photovoltaic array based on the wind direction information and the wind speed information.

6. A new energy photovoltaic power generation and energy storage device, characterized in that, The device comprises the method according to any one of claims 1 to 5. An acquisition unit is configured to acquire cloud information within a preset range of a photovoltaic array, the cloud information including an independent cloud area, an independent cloud spacing, and an independent cloud number; A control unit is configured to determine, based on the independent cloud area, the independent cloud spacing, and the independent cloud number, an MPPT maximum power point tracking strategy of the photovoltaic array in a current power tracking period from among an observation perturbation tracking method and a constant voltage tracking method.

7. An electronic device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor is configured to implement the steps of the new energy photovoltaic power generation and energy storage method according to any one of claims 1-5 when executing the computer program stored in the memory.

8. A computer readable storage medium having stored thereon a computer program, characterized in that: The computer program is executed by the processor to implement the new energy photovoltaic power generation and energy storage method according to any one of claims 1-5.

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