Photovoltaic module base angle dynamic control method and system

Abstract

The invention discloses a photovoltaic module base angle dynamic control method and system, relates to the field of new energy, and solves the problem that the existing photovoltaic module base angle dynamic control method is poor in control effect. Comprising the following steps: S1, carrying out solar radiation quantity analysis on an installation position of a target photovoltaic module to obtain a periodic solar radiation quantity of a target area, and carrying out power generation quantity analysis on the target photovoltaic module to obtain a periodic power generation quantity of the target module, s2, performing angle control demand judgment on the target photovoltaic module according to the angle control demand degree of the target module, performing type division on the target photovoltaic module according to an interpretation result, and obtaining a target module angle control demand degree by analyzing the periodic solar radiation amount of the target area and the periodic power generation amount of the target module; s3, base angle dynamic control is conducted on the angle control assembly according to the assembly type division data, and the accuracy of photovoltaic assembly base angle control is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of new energy, and relates to photovoltaic control technology, in particular to a photovoltaic module base angle dynamic control method and system. BACKGROUND

[0002] The existing photovoltaic module base angle dynamic control method has the following defects when controlling the base rotation angle:

[0003] 1. The existing photovoltaic module base angle dynamic control method cannot analyze the periodic solar radiation of the target photovoltaic module installation position to obtain the periodic solar radiation of the target area, cannot analyze the periodic power generation of the target photovoltaic module to obtain the periodic power generation of the target module, cannot obtain the target module angle control requirement degree by comprehensively considering the periodic solar radiation of the target area and the periodic power generation of the target module, and cannot adjust the angle of the target photovoltaic module according to the angle control requirement degree, which easily leads to waste of adjustment resources and is difficult to fully guarantee the adjustment efficiency.

[0004] 2. The existing photovoltaic module base angle dynamic control method cannot create a polar coordinate system by combining the current time value and the azimuth angle at noon of the target photovoltaic module installation position, and cannot make the base azimuth angle pointing line and the target azimuth angle pointing line real-time coincide through the polar coordinate, so that the photovoltaic module base angle dynamic control method lacks accuracy.

[0005] Therefore, the application provides a photovoltaic module base angle dynamic control method and system. SUMMARY

[0006] In view of the defects of the prior art, the application aims to provide a photovoltaic module base angle dynamic control method and system, and aims to improve the pertinence and accuracy of the photovoltaic module base angle dynamic control method.

[0007] In order to achieve the above-mentioned purpose, the application adopts the following technical scheme: a photovoltaic module base angle dynamic control method, comprising the following steps:

[0008] Step S1: analyzing the periodic solar radiation of the target photovoltaic module installation position to obtain the periodic solar radiation of the target area, analyzing the periodic power generation of the target photovoltaic module to obtain the periodic power generation of the target module, and obtaining the target module angle control requirement degree by comprehensively considering the periodic solar radiation of the target area and the periodic power generation of the target module;

[0009] Step S2: judging the angle control requirement of the target photovoltaic module according to the target module angle control requirement degree, classifying the types of the target photovoltaic module according to the judgment result, and obtaining module type classification data;

[0010] Step S3: According to the component type division data, the base angle of the angle control component is dynamically controlled.

[0011] Further, the step S1 further includes the following steps:

[0012] Step S11: Obtain the photovoltaic component in the solar power station which can be dynamically controlled by angle, and obtain the target photovoltaic component;

[0013] Step S12: In the process of power generation monitoring of the target photovoltaic component, set a time point corresponding to the current time as a cycle end time point to set a photovoltaic power generation monitoring cycle;

[0014] Step S13: Monitor the power generation of the target photovoltaic component in the photovoltaic power generation monitoring cycle, and obtain the target component cycle power generation according to the monitoring result;

[0015] Step S14: Set a radiation monitoring plane in the space region where the radiation monitoring plane is located, monitor the solar radiation of the radiation monitoring plane in the photovoltaic power generation monitoring cycle, and obtain the target region cycle solar radiation according to the monitoring result;

[0016] Step S15: Obtain a plurality of historical periods in which the solar radiation of the period is the same as the target region cycle solar radiation and the power generation of the target photovoltaic component is normal, obtain a plurality of historical analysis periods, obtain the period power generation of the target photovoltaic component corresponding to each historical analysis period, and average the plurality of period power generations to obtain the target component cycle reference power generation;

[0017] Step S16: Calculate the target component angle control demand degree by calculating the target component cycle reference power generation and the target component cycle power generation;

[0018] The target component angle control demand degree is calculated, and the specific formula is as follows:

[0019]

[0020] Wherein, Xjd is the target component angle control demand degree, Flj is the target component cycle power generation, and Fdl is the target component cycle reference power generation.

[0021] Further, the step S13 further includes the following steps:

[0022] Real-time power generation of the target photovoltaic component in the photovoltaic power generation monitoring cycle is monitored, and the time point at which the real-time power generation changes is set as the power change time point;

[0023] An interval period between two continuous power change time points is acquired to obtain a plurality of power stable periods, and the acquired plurality of power stable periods are respectively marked as V1 power period to Va power period in chronological order;

[0024] A first power change time point at the head of the V1 power period is acquired, a second power change time point corresponding to the tail of the V1 power period is acquired, the component power generation at the first power change time point and the second power change time point corresponding to the target photovoltaic component is respectively acquired to obtain a first component power generation and a second component power generation, and the average of the first component power generation and the second component power generation is calculated to set as the component power generation corresponding to the V1 power period, thereby obtaining a V1 component power generation;

[0025] The component power generations corresponding to the V2 power period to the Va power period are respectively acquired to obtain a V2 component power generation to a Va component power generation;

[0026] The durations of the V1 power period to the Va power period are respectively counted to obtain a V1 component power generation duration to a Va component power generation duration;

[0027] The V1 component power generation to the Va component power generation and the V1 component power generation duration to the Va component power generation duration are calculated to obtain a target component periodic power generation;

[0028] The target component periodic power generation is calculated, and the specific formula is as follows:

[0029]

[0030] Wherein, Fdl is the target component periodic power generation, Vfdi is the Vi component power generation, Tfdi is the Vi component power generation duration, a is the number value corresponding to the power stable period, and i is the component serial number.

[0031] Further, the step S14 further includes the following steps:

[0032] Real-time solar radiation of the radiation monitoring plane in the photovoltaic power generation monitoring period is monitored, and the time point at which the real-time solar radiation changes is set as a radiation change time point;

[0033] An interval period between two continuous radiation change time points is acquired to obtain a plurality of radiation stable periods, and the acquired plurality of radiation stable periods are respectively marked as F1 radiation period to Fb radiation period in chronological order;

[0034] The radiation change time point at the beginning of the F1 radiation period is acquired to obtain a first radiation change time point, and the radiation change time point corresponding to the tail end of the F1 radiation period is acquired to obtain a second radiation change time point. The component solar radiation corresponding to the first radiation change time point and the second radiation change time point of the radiation monitoring plane is acquired respectively to obtain a first component solar radiation and a second component solar radiation. The average of the first component solar radiation and the second component solar radiation is calculated to set the average as the component solar radiation corresponding to the F1 radiation period, and the F1 component solar radiation is obtained.

[0035] The component solar radiation corresponding to the F2 radiation period to the Fb radiation period is acquired respectively to obtain the F2 component solar radiation to the Fb component solar radiation.

[0036] Further, the step S14 further includes the following steps:

[0037] The time length of the F1 radiation period to the Fb radiation period is counted respectively to obtain the F1 plane radiation time length to the Fb plane radiation time length.

[0038] The F1 component solar radiation to the Fb component solar radiation and the F1 plane radiation time length to the Fb plane radiation time length are calculated to obtain the target region periodic solar radiation.

[0039] The target region periodic solar radiation is calculated, and the specific formula is as follows:

[0040]

[0041] Wherein, Sdl is the target region periodic solar radiation, Sfdi is the Fi component solar radiation, Tsdi is the Fi plane radiation time length, and b is the number value corresponding to the radiation stable period.

[0042] Further, the step S2 further includes the following steps:

[0043] Step S21: Acquire the target component angle control demand degree, acquire the historical period of controlling the target photovoltaic component to obtain a plurality of historical control periods;

[0044] Step S22: Acquire the component angle control demand degree corresponding to each historical control period respectively to obtain a plurality of component angle control demand degrees. The numerical value of the obtained plurality of component angle control demand degrees is compared, the component angle control demand degree with the largest numerical value is set as the upper limit of the control demand degree interval, the component angle control demand degree with the smallest numerical value is set as the lower limit of the control demand degree interval, and the numerical interval composed of the upper limit of the control demand degree interval and the lower limit of the control demand degree interval is set as the control demand degree interval.

[0045] Step S23: If the target component angle control requirement degree is in the control requirement degree interval, the target photovoltaic component is divided into an angle control component, and if the target component angle control requirement degree is not in the control requirement degree interval, the target photovoltaic component is divided into a non-angle control component, to obtain component type division data.

[0046] Further, the step S3 further includes the following steps:

[0047] Step S31: Obtain component type division data, and if the target photovoltaic component is an angle control component, control the azimuth angle of the base of the target photovoltaic component;

[0048] The step S31 further includes the following steps:

[0049] In the target photovoltaic component, a solar power generation panel is obtained, and a space region covered by the solar power generation panel is set as a generation panel plane. A geometric center corresponding to the generation panel plane is obtained to obtain a first component feature point. A vertical line passing through the first component feature point and the ground is obtained to obtain a first component feature straight line. An intersection point of the first component feature straight line and the base of the target photovoltaic component is set as a second component feature point. A midpoint of a line connecting the first component feature point and the second component feature point is obtained to obtain a third component feature point.

[0050] In the generation panel plane, an arbitrary straight line parallel to the ground is drawn through the first component feature point to obtain a second component feature straight line. A projection line of the second component feature straight line on the ground is obtained to obtain a third component feature straight line. A plane perpendicular to the ground is drawn through the third component feature straight line to obtain a first component feature plane.

[0051] Further, the step S31 further includes the following steps:

[0052] A straight line perpendicular to the first component feature plane is drawn through the third component feature point to obtain a base azimuth angle pointing line.

[0053] A horizontal plane in which the base azimuth angle is located is obtained to obtain a second component feature plane. In the second component feature plane, a straight line in the north-south direction is drawn through the geometric center of the second component feature plane to obtain a first plane straight line. A straight line in the east-west direction is drawn through the geometric center of the second component feature plane to obtain a second plane straight line. The geometric center of the second component feature plane is set as the coordinate origin. The first plane straight line is set as the coordinate y-axis, and the positive south direction is the positive direction of the coordinate y-axis. The second plane straight line is set as the coordinate z-axis, and the positive east direction is the positive direction of the coordinate x-axis, to obtain an azimuth angle polar coordinate system.

[0054] Further, the step S31 further includes the following steps:

[0055] A time value corresponding to the current time is obtained to obtain a first characteristic time value, a time value corresponding to 12:00 noon is set as a second characteristic time value, a difference between the first characteristic time value and the second characteristic time value is calculated to obtain a zero-degree azimuth time deviation;

[0056] A ratio of the zero-degree azimuth time deviation to a preset azimuth moving speed is calculated to obtain a solar azimuth coordinate angle;

[0057] In the azimuth polar coordinate system, the solar azimuth coordinate angle is marked in the azimuth polar coordinate system, and a polar radius corresponding to the azimuth polar coordinate system is set as a target azimuth pointing line;

[0058] The target photovoltaic module base is moved to keep the base azimuth pointing line coincident with the target azimuth pointing line.

[0059] A photovoltaic module base angle dynamic control system comprises:

[0060] A data acquisition module: target photovoltaic module installation position is analyzed for periodic solar radiation to obtain target area periodic solar radiation, target photovoltaic modules are analyzed for periodic power generation to obtain target component periodic power generation, and target component angle control requirement degree is obtained by comprehensively analyzing target area periodic solar radiation and target component periodic power generation;

[0061] A control requirement module: target photovoltaic modules are judged for angle control requirement degree according to target component angle control requirement degree, target photovoltaic modules are classified according to the judgment result to obtain component type classification data;

[0062] A dynamic control module: base angle dynamic control is performed on angle control components according to component type classification data.

[0063] As described above, due to the adoption of the above technical solutions, the present application has the following advantages:

[0064] 1. The present application can effectively ensure the utilization efficiency of the adjustment resources by analyzing target photovoltaic module installation position for periodic solar radiation to obtain target area periodic solar radiation, analyzing target photovoltaic modules for periodic power generation to obtain target component periodic power generation, comprehensively analyzing target area periodic solar radiation and target component periodic power generation to obtain target component angle control requirement degree, and adjusting the target photovoltaic modules for angle according to the angle control requirement degree.

[0065] 2、The application creates a polar coordinate system by combining the current time value and the azimuth angle at noon of the target photovoltaic module installation position, and makes the base azimuth angle pointing line and the target azimuth angle pointing line real-time coincide through the polar coordinate, so as to ensure the accuracy of the photovoltaic module base angle dynamic control method. BRIEF DESCRIPTION OF DRAWINGS

[0066] In order to facilitate the understanding of those skilled in the art, the present application will be further described below in conjunction with the drawings.

[0067] Figure 1 is the implementation step diagram of the present application;

[0068] Figure 2 is the overall system block diagram of the present application;

[0069] Figure 3 is the azimuth angle polar coordinate system schematic diagram in the present application. DETAILED DESCRIPTION

[0070] The technical solutions of the present application will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0071] Embodiment one

[0072] Please refer to Figure 1 The present application provides a technical solution: a photovoltaic module base angle dynamic control method, comprising the following steps:

[0073] Step S1: performing periodic solar radiation analysis on the target photovoltaic module installation position to obtain the target area periodic solar radiation, performing periodic power generation analysis on the target photovoltaic module to obtain the target component periodic power generation, and comprehensively obtaining the target component angle control requirement degree according to the target area periodic solar radiation and the target component periodic power generation;

[0074] The step S1 further comprises the following steps:

[0075] Step S11: obtaining the photovoltaic module that can be dynamically controlled in angle in the solar power station to obtain the target photovoltaic module;

[0076] Step S12: setting a photovoltaic power generation monitoring period with the time point corresponding to the current time as the periodic end time point in the process of monitoring the power generation of the target photovoltaic module;

[0077] Step S13: monitoring the power generation of the target photovoltaic module in the photovoltaic power generation monitoring period, and obtaining the target module period power generation according to the monitoring result;

[0078] The step S13 further includes the following steps:

[0079] Real-time power generation of the target photovoltaic module in the photovoltaic power generation monitoring period is monitored, and the time point at which the real-time power generation changes is set as the power change time point;

[0080] The interval period between the two consecutive power change time points is obtained, and a plurality of power stable time periods are obtained, and the plurality of power stable time periods obtained are respectively marked as V1 power period to Va power period in chronological order;

[0081] The power change time point at the beginning of the V1 power period is obtained, and the first power change time point is obtained, and the power change time point corresponding to the tail end of the V1 power period is obtained, and the second power change time point is obtained, and the component power generation at the first power change time point and the second power change time point corresponding to the target photovoltaic module is obtained, and the first component power generation and the second component power generation are obtained, and the average value of the first component power generation and the second component power generation is calculated as the component power generation corresponding to the V1 power period, and the V1 component power generation is obtained;

[0082] The component power generation corresponding to the V2 power period to the Va power period is obtained, and the V2 component power generation to the Va component power generation is obtained;

[0083] The duration of the V1 power period to the Va power period is counted, and the V1 component power generation duration to the Va component power generation duration is obtained;

[0084] The V1 component power generation to the Va component power generation and the V1 component power generation duration to the Va component power generation duration are calculated to obtain the target module period power generation;

[0085] The target module period power generation is calculated, and the specific formula is as follows:

[0086]

[0087] Wherein, Fdl is the target module period power generation, Vfdi is the Vi component power generation, Tfdi is the Vi component power generation duration, a is the number value corresponding to the power stable time period, and i is the component serial number;

[0088] Step S14: setting a radiation monitoring plane in a space region where the radiation monitoring plane is located, monitoring the solar radiation of the radiation monitoring plane in the photovoltaic power generation monitoring period, and obtaining the target region period solar radiation according to the monitoring result;

[0089] The step S14 further includes the following steps:

[0090] The real-time solar radiation of the radiation monitoring plane in the photovoltaic power generation monitoring period is monitored, and the time point at which the real-time solar radiation changes is set as the radiation change time point;

[0091] The interval period between the two continuous radiation change time points is obtained, a plurality of radiation stable periods are obtained, and the plurality of obtained radiation stable periods are respectively marked as F1 radiation period to Fb radiation period in chronological order;

[0092] The first radiation change time point at the beginning of the F1 radiation period is obtained, the second radiation change time point corresponding to the end of the F1 radiation period is obtained, the component solar radiation of the radiation monitoring plane at the first radiation change time point and the second radiation change time point is respectively obtained, the first component solar radiation and the second component solar radiation are obtained, the average value of the first component solar radiation and the second component solar radiation is calculated and set as the component solar radiation corresponding to the F1 radiation period, and the F1 component solar radiation is obtained;

[0093] The component solar radiation corresponding to the F2 radiation period to the Fb radiation period is respectively obtained, and the F2 component solar radiation to the Fb component solar radiation is obtained;

[0094] The time length of the F1 radiation period to the Fb radiation period is respectively counted, and the F1 plane radiation time length to the Fb plane radiation time length is obtained;

[0095] The F1 component solar radiation to the Fb component solar radiation and the F1 plane radiation time length to the Fb plane radiation time length are calculated to obtain the target region period solar radiation;

[0096] The target region period solar radiation is calculated, and the specific formula is as follows:

[0097]

[0098] Wherein, Sdl is the target region period solar radiation, Sfdi is the Fi component solar radiation, Tsdi is the Fi plane radiation time length, and b is the number value corresponding to the radiation stable period;

[0099] Step S15: Obtain a plurality of historical periods in which the solar radiation of the periods is the same as the periodic solar radiation of the target region and the power generation of the target photovoltaic module is normal, obtain a plurality of historical analysis periods, obtain the power generation of the target photovoltaic module in each historical analysis period, and calculate the average of the obtained power generation of the periods to obtain the periodic reference power generation of the target module;

[0100] Step S16: Calculate the target module angle control demand degree by the periodic reference power generation of the target module and the periodic power generation of the target module.

[0101] The target module angle control demand degree is calculated, and the specific formula is as follows:

[0102]

[0103] Wherein, Xjd is the target module angle control demand degree, Flj is the periodic power generation of the target module, and Fdl is the periodic reference power generation of the target module.

[0104] It should be noted here that:

[0105] In the present application, the beneficial effects of the above step S1 are as follows:

[0106] 1. Based on the correlation analysis of actual irradiation data and module power generation performance, the matching degree of the module inclination and the current radiation environment can be accurately identified, blind adjustment is avoided, and adjustment is triggered only when the demand degree indicates that the angle deviation significantly affects the power generation efficiency, ensuring that each action has a clear benefit.

[0107] 2. The necessity of adjustment is determined by the demand degree threshold, which greatly reduces non-critical mechanical actions. This not only reduces driving energy consumption, reduces part wear and tear, and prolongs equipment life, but also reduces the frequency of operation and maintenance intervention, and reduces labor and spare parts costs.

[0108] Step S2: Determine the angle control demand of the target photovoltaic module according to the target module angle control demand degree, classify the target photovoltaic module according to the judgment result, and obtain the module type classification data.

[0109] The step S2 further includes the following steps:

[0110] Step S21: Obtain the target module angle control demand degree, and obtain a plurality of historical control periods of the target photovoltaic module.

[0111] Step S22: obtaining the component angle control demand degree corresponding to each historical control period respectively, obtaining a plurality of component angle control demand degrees, comparing the numerical values of the obtained plurality of component angle control demand degrees, setting the component angle control demand degree with the largest numerical value as the upper limit of the control demand degree interval, setting the component angle control demand degree with the smallest numerical value as the lower limit of the control demand degree interval, and setting the numerical interval composed of the upper limit of the control demand degree interval and the lower limit of the control demand degree interval as the control demand degree interval;

[0112] Step S23: if the target component angle control demand degree is in the control demand degree interval, the target photovoltaic component is divided into an angle control component, and if the target component angle control demand degree is not in the control demand degree interval, the target photovoltaic component is divided into a non-angle control component, to obtain component type division data;

[0113] Step S3: performing base angle dynamic control on the angle control component according to the component type division data;

[0114] The step S3 further includes the following steps:

[0115] Step S31: obtaining the component type division data, and if the target photovoltaic component is an angle control component, performing base azimuth control on the target photovoltaic component;

[0116] The step S31 further includes the following steps:

[0117] The solar power generation panel contained in the target photovoltaic component is obtained, and the space region covered by the solar power generation panel is set as a generation panel plane. The geometric center corresponding to the generation panel plane is obtained to obtain a first component feature point. A perpendicular line to the ground is drawn through the first component feature point to obtain a first component feature straight line. The intersection of the first feature straight line and the base of the target photovoltaic component is set as a second component feature point. The midpoint of the line connecting the first component feature point and the second component feature point is obtained to obtain a third component feature point.

[0118] In the generation panel plane, an arbitrary straight line parallel to the ground is drawn through the first component feature point to obtain a second component feature straight line. The projection line of the second component feature straight line on the ground is obtained to obtain a third component feature straight line. A plane perpendicular to the ground is drawn through the third component feature straight line to obtain a first component feature plane.

[0119] A straight line perpendicular to the first component feature plane is drawn through the third component feature point to obtain a base azimuth pointing line.

[0120] A horizontal plane in which the base azimuth angle is located is obtained to obtain a second component feature plane. In the second component feature plane, a straight line that runs from south to north is drawn through the geometric center of the second component feature plane to obtain a first plane straight line. A straight line that runs from east to west is drawn through the geometric center of the second component feature plane to obtain a second plane straight line. The geometric center of the second component feature plane is set as a coordinate origin. The first plane straight line is set as a coordinate y-axis, and the positive south direction is the positive direction of the coordinate y-axis. The second plane straight line is set as a coordinate z-axis, and the positive east direction is the positive direction of the coordinate x-axis to obtain an azimuth polar coordinate system.

[0121] A time value corresponding to the current moment is obtained to obtain a first characteristic time value. A time value corresponding to noon is set as a second characteristic time value. The difference between the first characteristic time value and the second characteristic time value is calculated to obtain a zero-degree azimuth time deviation.

[0122] The ratio of the zero-degree azimuth time deviation to a preset azimuth angle moving speed is calculated to obtain a solar azimuth coordinate angle.

[0123] In the azimuth polar coordinate system, the solar azimuth coordinate angle is marked in the azimuth polar coordinate system, and the polar radius corresponding to the solar azimuth coordinate angle in the azimuth polar coordinate system is set as a target azimuth pointing line.

[0124] The target photovoltaic component base is moved so that the base azimuth pointing line and the target azimuth pointing line remain coincident.

[0125] It should be noted that:

[0126] The above step S3 creates a polar coordinate system by combining the current time value and the noon azimuth angle of the target photovoltaic component installation position. The base azimuth pointing line and the target azimuth pointing line remain coincident in real time through the polar coordinate. The time variable (current moment) and the space reference (noon azimuth angle) are unified in the polar coordinate frame. The complex dynamic change of the solar azimuth angle is converted into an intuitive coordinate mapping relationship, which significantly simplifies the mathematical logic and algorithm complexity of real-time calculation of the azimuth angle. Iterative calculation of complex astronomical formulas is avoided. At the same time, through the radial and angular double-parameter collaborative control of the polar coordinate system, it is ensured that the base pointing line is always synchronized with the theoretical solar azimuth. This method can compensate for the continuous deviation of the azimuth angle caused by the rotation and revolution of the earth in real time, eliminate the cumulative error of traditional timing adjustment, and effectively improve the accuracy of the adjustment process.

[0127] Embodiment Two

[0128] Please refer to Figure 2, based on the same invention, another idea is presented, a photovoltaic module base angle dynamic control system, comprising a data acquisition module, a control demand module, a dynamic control module and a server, the data acquisition module, the control demand module and the dynamic control module are connected with the server respectively, and the server controls the data acquisition module, the control demand module and the dynamic control module respectively;

[0129] The data acquisition module analyzes the periodic solar radiation of the target photovoltaic module installation position to obtain the periodic solar radiation of the target area, analyzes the periodic power generation of the target photovoltaic module to obtain the periodic power generation of the target component, and comprehensively obtains the target component angle control demand degree according to the target area periodic solar radiation and the target component periodic power generation;

[0130] Specifically as follows:

[0131] The target photovoltaic module is obtained in the solar power station which can be dynamically controlled by the angle of the photovoltaic module;

[0132] It should be noted here that:

[0133] In this application, the target photovoltaic module base rotation angle of the photovoltaic module which can be dynamically controlled is involved;

[0134] In the process of monitoring the power generation of the target photovoltaic module, the time point corresponding to the current time is set as the end time point of the cycle to set a photovoltaic power generation monitoring cycle;

[0135] It should be noted here that:

[0136] In this application, the cycle length corresponding to the photovoltaic power generation monitoring cycle is 5 minutes.

[0137] The power generation of the target photovoltaic module in the photovoltaic power generation monitoring cycle is monitored, and the periodic power generation of the target component is obtained according to the monitoring result;

[0138] Specifically as follows:

[0139] The real-time power generation of the target photovoltaic module in the photovoltaic power generation monitoring cycle is monitored, and the time point when the real-time power generation changes is set as the power change time point;

[0140] The interval period between the two continuous power change time points is obtained, and a plurality of power stable time periods are obtained, and the plurality of power stable time periods are respectively marked as V1 power period to Va power period according to the time sequence;

[0141] It should be noted here that:

[0142] In the present application, 1, 2, 3…a in the V1 power period to the Va power period is the number corresponding to different power stable periods;

[0143] The power change time point at the head of the V1 power period is obtained to obtain a first power change time point, and the power change time point corresponding to the tail of the V1 power period is obtained to obtain a second power change time point. The component power generation power corresponding to the first power change time point and the second power change time point of the target photovoltaic component is obtained respectively to obtain the first component power generation power and the second component power generation power. The average value of the first component power generation power and the second component power generation power is calculated to set the component power generation power corresponding to the V1 power period, and the V1 component power generation power is obtained;

[0144] The acquisition process of the V1 component power generation power is repeated to obtain the component power generation power corresponding to the V2 power period to the Va power period, and the V2 component power generation power to the Va component power generation power is obtained.

[0145] The duration of the V1 power period to the Va power period is counted respectively to obtain the V1 component power generation duration to the Va component power generation duration.

[0146] The V1 component power generation power to the Va component power generation power and the V1 component power generation duration to the Va component power generation duration are calculated to obtain the target component periodic power generation amount.

[0147] The target component periodic power generation amount is calculated, and the specific formula is as follows:

[0148]

[0149] Wherein, Fdl is the target component periodic power generation amount, Vfdi is the Vi component power generation power, Tfdi is the Vi component power generation duration, a is the number value corresponding to the power stable period, and i is the component serial number.

[0150] A radiation monitoring plane is arranged in the space region where the radiation monitoring plane is located. The solar radiation of the radiation monitoring plane in the photovoltaic power generation monitoring period is monitored, and the target region periodic solar radiation is obtained according to the monitoring result.

[0151] It should be noted here that:

[0152] The radiation monitoring plane involved here is perpendicular to the real-time solar irradiation angle.

[0153] Specifically as follows:

[0154] The real-time solar radiation of the radiation monitoring plane in the photovoltaic power generation monitoring period is monitored, and the time point when the real-time solar radiation changes is set as the radiation change time point.

[0155] The interval period between the two continuous radiation amount change time points is obtained to obtain a plurality of radiation amount stable periods, and the obtained plurality of radiation amount stable periods are marked as F1 radiation period to Fb radiation period in time sequence;

[0156] It should be noted here that:

[0157] In this application, 1, 2, 3…b in F1 radiation period to Fb radiation period are the numbers corresponding to different radiation amount stable periods;

[0158] In this application, the unit of solar radiation amount referred to here is w / m 2 ,

[0159] The radiation amount change time point at the beginning of the F1 radiation period is obtained to obtain a first radiation amount change time point, the radiation amount change time point corresponding to the tail end of the F1 radiation period is obtained to obtain a second radiation amount change time point, the component solar radiation amount corresponding to the first radiation amount change time point and the second radiation amount change time point of the radiation monitoring plane is obtained respectively to obtain a first component solar radiation amount and a second component solar radiation amount, and the average value of the first component solar radiation amount and the second component solar radiation amount is calculated to set as the component solar radiation amount corresponding to the F1 radiation period, thereby obtaining the F1 component solar radiation amount;

[0160] The process of obtaining the F1 component solar radiation amount is repeated to obtain the component solar radiation amount corresponding to the F2 radiation period to the Fb radiation period, thereby obtaining the F2 component solar radiation amount to the Fb component solar radiation amount;

[0161] The time length of the F1 radiation period to the Fb radiation period is counted respectively to obtain the F1 plane radiation time length to the Fb plane radiation time length;

[0162] The F1 component solar radiation amount to the Fb component solar radiation amount and the F1 plane radiation time length to the Fb plane radiation time length are calculated to obtain the target region periodic solar radiation amount;

[0163] The target region periodic solar radiation amount is calculated, and the specific formula is as follows:

[0164]

[0165] Wherein, Sdl is the target region periodic solar radiation amount, Sfdi is the Fi component solar radiation amount, Tsdi is the Fi plane radiation time length, and b is the number value corresponding to the radiation amount stable period;

[0166] Acquire a plurality of historical analysis periods in which the solar radiation of the periods is the same as the periodic solar radiation of the target region and the power generation of the target photovoltaic module is normal, acquire the power generation of the target photovoltaic module in each historical analysis period, and calculate the average of the acquired power generations to obtain the periodic reference power generation of the target module;

[0167] It should be noted here that:

[0168] In the present application, the historical analysis period referred to here is equal to the photovoltaic power generation monitoring period.

[0169] Calculate the target module angle control demand degree by the periodic reference power generation of the target module and the periodic power generation of the target module.

[0170] Calculate the target module angle control demand degree, and the specific formula is as follows:

[0171]

[0172] Wherein, Xjd is the target module angle control demand degree, Flj is the periodic power generation of the target module, and Fdl is the periodic reference power generation of the target module.

[0173] The control demand module judges the angle control demand of the target photovoltaic module according to the target module angle control demand degree, classifies the type of the target photovoltaic module according to the judgment result, and obtains the module type classification data.

[0174] Specifically as follows:

[0175] Acquire the target module angle control demand degree, acquire the historical period of the control of the target photovoltaic module, and obtain a plurality of historical control periods.

[0176] Acquire the module angle control demand degree corresponding to each historical control period, obtain a plurality of module angle control demand degrees, compare the numerical values of the obtained plurality of module angle control demand degrees, set the module angle control demand degree with the largest numerical value as the upper limit of the control demand degree interval, set the module angle control demand degree with the smallest numerical value as the lower limit of the control demand degree interval, and set the numerical interval composed of the upper limit of the control demand degree interval and the lower limit of the control demand degree interval as the control demand degree interval.

[0177] If the target module angle control demand degree is in the control demand degree interval, the target photovoltaic module is classified as an angle control module, and if the target module angle control demand degree is not in the control demand degree interval, the target photovoltaic module is classified as a non-angle control module, and the module type classification data is obtained.

[0178] The dynamic control module controls the base angle of the angle control component according to the component type division data.

[0179] The specific implementation is as follows.

[0180] The component type division data is acquired, and if the target photovoltaic component is an angle control component, the base azimuth angle of the target photovoltaic component is controlled.

[0181] The specific implementation is as follows.

[0182] The solar power generation panel included in the target photovoltaic component is acquired, and a space region covered by the solar power generation panel is set as a generation panel plane. A geometric center corresponding to the generation panel plane is acquired to obtain a first component feature point. A perpendicular line passing through the first component feature point and the ground is drawn to obtain a first component feature straight line. An intersection point of the first component feature straight line and the base of the target photovoltaic component is set as a second component feature point. A midpoint of a line connecting the first component feature point and the second component feature point is acquired to obtain a third component feature point.

[0183] In the generation panel plane, an arbitrary straight line parallel to the ground is drawn through the first component feature point to obtain a second component feature straight line. A projection line of the second component feature straight line on the ground is acquired to obtain a third component feature straight line. A plane perpendicular to the ground is drawn through the third component feature straight line to obtain a first component feature plane.

[0184] A straight line perpendicular to the first component feature plane is drawn through the third component feature point to obtain a base azimuth angle pointing line.

[0185] Please refer to Figure 3 A horizontal plane in which the base azimuth angle is located is acquired to obtain a second component feature plane. In the second component feature plane, a straight line in the north-south direction is drawn through the geometric center of the second component feature plane to obtain a first plane straight line. A straight line in the east-west direction is drawn through the geometric center of the second component feature plane to obtain a second plane straight line. The geometric center of the second component feature plane is set as the coordinate origin. The first plane straight line is set as the coordinate y-axis, and the positive south direction is the positive direction of the coordinate y-axis. The second plane straight line is set as the coordinate z-axis, and the positive east direction is the positive direction of the coordinate x-axis to obtain an azimuth angle polar coordinate system.

[0186] A time value corresponding to the current time is acquired to obtain a first feature time value. A time value corresponding to noon is set as a second feature time value. The difference between the first feature time value and the second feature time value is calculated to obtain a zero-degree azimuth angle time deviation.

[0187] The ratio of the zero-degree azimuth angle time deviation to a preset azimuth angle moving speed is calculated to obtain a solar azimuth angle coordinate angle.

[0188] It should be noted here that:

[0189] In the present application, the preset azimuth angle moving speed is specifically 15° / h.

[0190] In the azimuth polar coordinate system, the sun azimuth coordinate angle is marked in the azimuth polar coordinate system, and the polar radius corresponding to the azimuth polar coordinate system is set as a target azimuth pointing line;

[0191] The target photovoltaic module base is moved so that the base azimuth pointing line and the target azimuth pointing line remain coincident;

[0192] The preferred embodiments disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details and do not limit the present application to the specific embodiments. Obviously, many modifications and variations can be made according to the content of the present application. The present application is selected and described in detail to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and use the present application. The present application is limited by the claims and their full scope and equivalents.

Claims

1. A method for dynamically controlling the angle of a photovoltaic module base, characterized in that, include: Step S1: Perform periodic solar radiation analysis on the target photovoltaic module installation location to obtain the periodic solar radiation of the target area, perform periodic power generation analysis on the target photovoltaic module to obtain the periodic power generation of the target module, and obtain the target module angle control requirement by analyzing the periodic solar radiation of the target area and the periodic power generation of the target module. Step S2: Determine the angle control requirements of the target photovoltaic modules based on the target module angle control requirements, and classify the target photovoltaic modules according to the judgment results to obtain module type classification data; Step S3: Based on the component type, divide the data to dynamically control the base angle of the angle control component.

2. The method for dynamic control of the angle of a photovoltaic module base according to claim 1, characterized in that, Step S1 further includes the following steps: Step S11: Acquire the photovoltaic modules in the solar power station that can be dynamically controlled in angle to obtain the target photovoltaic module; Step S12: During the power generation monitoring of the target photovoltaic module, a photovoltaic power generation monitoring cycle is set with the current time point as the end time point of the cycle. Step S13: Monitor the power generation of the target photovoltaic module in the photovoltaic power generation monitoring cycle, and obtain the periodic power generation of the target module based on the monitoring results; Step S14: Set up a radiation monitoring plane in the spatial area where the radiation monitoring plane is located, monitor the solar radiation of the radiation monitoring plane during the photovoltaic power generation monitoring cycle, and obtain the periodic solar radiation of the target area based on the monitoring results. Step S15: Obtain the historical analysis period, obtain the power generation of the target photovoltaic module during the historical analysis period, and calculate the average of the power generation of multiple periods to obtain the periodic benchmark power generation of the target module. Step S16: Calculate the target component angle control demand by combining the target component periodic reference power generation with the target component periodic power generation.

3. The method for dynamic control of the angle of a photovoltaic module base according to claim 2, characterized in that, Step S13 further includes the following steps: Real-time power generation monitoring is performed on the target photovoltaic modules during the photovoltaic power generation monitoring cycle, and the time point when the real-time power generation changes is set as the power change time point. The time interval between two consecutive power change points is acquired to obtain multiple power stable periods, and the acquired power stable periods are marked as power period V1 to power period Va in chronological order. Analyze the power generation of the modules from power period V1 to power period Va separately, and obtain the power generation of the modules from V1 to Va based on the analysis results; The duration of power generation from V1 to Va power period was statistically analyzed to obtain the power generation duration of module V1 to module Va. The target module's cycle power generation is obtained by calculating the power generation of module V1 to module Va and the power generation duration of module V1 to module Va.

4. The method for dynamic control of the angle of a photovoltaic module base according to claim 2, characterized in that, Step S14 further includes the following steps: Real-time solar radiation is monitored on the radiation monitoring plane during the photovoltaic power generation monitoring cycle, and the time point when the real-time solar radiation changes is set as the radiation change time point. The interval between two consecutive time points of change in radiation was acquired to obtain multiple stable radiation periods. These multiple stable radiation periods were then labeled as radiation period F1 to radiation period Fb in chronological order. Regional solar radiation was collected from the F1 radiation period to the Fb radiation period, and the solar radiation from the F1 module to the Fb module was obtained based on the collection results.

5. The method for dynamic control of the angle of a photovoltaic module base according to claim 4, characterized in that, Step S14 further includes the following steps: The duration of radiation from F1 to Fb was statistically analyzed to obtain the plane radiation duration from F1 to Fb. The periodic solar radiation of the target area is obtained by calculating the solar radiation from F1 module to Fb module and the solar radiation duration from F1 plane to Fb plane.

6. The method for dynamic control of the angle of a photovoltaic module base according to claim 1, characterized in that, Step S2 further includes the following steps: Step S21: Obtain the target module angle control requirement, and obtain the historical control periods of the target photovoltaic module to obtain multiple historical control periods; Step S22: Obtain the component angle control demand degree corresponding to each historical control period, obtain multiple component angle control demand degrees, compare the numerical values ​​of the multiple component angle control demand degrees, set the component angle control demand degree with the largest value as the upper limit of the control demand degree interval, set the component angle control demand degree with the smallest value as the lower limit of the control demand degree interval, and set the numerical interval formed by the upper limit of the control demand degree interval and the lower limit of the control demand degree interval as the control demand degree interval. Step S23: If the target module's angle control requirement is within the control requirement range, then the target photovoltaic module is classified as an angle-controlled module. If the target module's angle control requirement is not within the control requirement range, then the target photovoltaic module is classified as a non-angle-controlled module, thus obtaining module type classification data.

7. The method for dynamic control of the angle of a photovoltaic module base according to claim 1, characterized in that, Step S3 further includes the following steps: Step S31: Obtain component type classification data. If the target photovoltaic module is an angle control module, then control the base azimuth angle of the target photovoltaic module. Step S31 further includes the following steps: The solar panels contained in the target photovoltaic module are obtained, and the space covered by the solar panels is set as the plane of the solar panels. The geometric center corresponding to the plane of the solar panels is obtained to obtain the first component feature point. A perpendicular line from the first component feature point to the ground is drawn to obtain the first component feature line. The intersection of the first feature line and the base of the target photovoltaic module is set as the second component feature point. The midpoint of the line connecting the first component feature point and the second component feature point is obtained to obtain the third component feature point. Within the plane of the power generation panel, draw any straight line parallel to the ground through the first component feature point to obtain the second component feature line. Obtain the projection line of the second component feature line onto the ground to obtain the third component feature line. Draw a plane perpendicular to the ground through the third component feature line to obtain the first component feature plane.

8. The method for dynamic control of the angle of a photovoltaic module base according to claim 7, characterized in that, Step S31 further includes the following steps: Draw a straight line perpendicular to the feature plane of the first component through the feature point of the third component to obtain the azimuth pointing line of the base; Obtain the horizontal plane where the azimuth of the base is located to obtain the second component feature plane. Within the second component feature plane, draw a north-south straight line through the geometric center of the second component feature plane to obtain the first plane line. Draw an east-west straight line through the geometric center of the second component feature plane to obtain the second plane line. Set the geometric center of the second component feature plane as the origin of the coordinate system. Set the first plane line as the y-axis of the coordinate system, with the due south direction as the positive direction of the y-axis. Set the second plane line as the z-axis of the coordinate system, with the due east direction as the positive direction of the x-axis. Obtain the azimuth polar coordinate system.

9. The method for dynamic control of the angle of a photovoltaic module base according to claim 8, characterized in that, Step S31 further includes the following steps: The time value corresponding to the current moment is obtained to obtain the first characteristic time value. The time value corresponding to noon is set as the second characteristic time value. The difference between the first characteristic time value and the second characteristic time value is calculated to obtain the zero-degree azimuth time deviation. Calculate the ratio of the zero-degree azimuth time deviation to the preset azimuth angle movement speed to obtain the solar azimuth coordinate angle; Mark the solar azimuth coordinates in the polar azimuth coordinate system, and set the polar radius corresponding to it in the polar azimuth coordinate system as the target azimuth pointing line; Move the base of the target photovoltaic module so that the azimuth line of the base coincides with the azimuth line of the target.

10. A dynamic control system for the angle of a photovoltaic module base, applicable to the dynamic control method for the angle of a photovoltaic module base as described in any one of claims 1-9, characterized in that, include: Data acquisition module: Performs periodic solar radiation analysis on the installation location of the target photovoltaic module to obtain the periodic solar radiation of the target area, performs periodic power generation analysis on the target photovoltaic module to obtain the periodic power generation of the target module, and obtains the target module angle control requirement by analyzing the periodic solar radiation of the target area and the periodic power generation of the target module. Control demand module: Determines the angle control demand of the target photovoltaic module based on the angle control demand of the target module, and classifies the target photovoltaic module into types based on the judgment results to obtain module type classification data; Dynamic control module: Based on the component type, the data is divided to dynamically control the base angle of the angle control component.

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