Detection method and detection device for photovoltaic system
The integrated testing device solves the problem of needing two sets of equipment to measure the output power and voltage of solar photovoltaic panels in photovoltaic systems. It enables efficient and portable measurement and optimization of photovoltaic panel angles, and reduces testing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-21
- Publication Date
- 2026-04-21
AI Technical Summary
In existing technologies, measuring the output power and total output voltage of solar photovoltaic panels in a photovoltaic system requires two sets of equipment: a photovoltaic panel power meter and a multimeter. This results in inconvenience for carrying the equipment and increased testing costs.
An integrated detection device is adopted, which includes a first voltage measurement module, a first current measurement module, an output power determination module, a second voltage measurement module, and a display module. These modules measure the output voltage, current, and total output voltage of the solar photovoltaic panel, and the data is processed and displayed by a control chip.
It enables efficient measurement of the output power and total output voltage of solar photovoltaic panels, reduces equipment usage costs, improves the portability and accuracy of measurements, and can plot output power curves and adjust the angle of photovoltaic panels to optimize lighting conditions.
Smart Images
Figure CN121907141A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of photovoltaic system testing equipment technology, and in particular to a testing method and testing device for photovoltaic systems. Background Technology
[0002] Photovoltaic systems, also known as solar photovoltaic power generation systems, have become one of the core forces driving the upgrading of energy structure due to their unique advantages of being clean and renewable. However, the construction and maintenance of photovoltaic systems require measuring the output power of the solar photovoltaic panels. In existing technologies, photovoltaic panel power meters are usually used to measure the output power of solar photovoltaic panels.
[0003] Furthermore, in photovoltaic systems, multiple solar photovoltaic panels are typically connected in series to provide the total output voltage. To measure this total output voltage, existing technologies require a multimeter. Therefore, during the construction and maintenance of photovoltaic systems, existing testing methods necessitate at least two sets of testing equipment: a photovoltaic panel power meter and a multimeter. This is not only inconvenient to carry but also increases the cost of using the testing equipment. Thus, there is an urgent need for a testing method that facilitates the measurement of the output power and total output voltage of solar photovoltaic panels. Summary of the Invention
[0004] The purpose of this invention is to overcome at least one deficiency of the prior art and to provide a detection method for photovoltaic systems that facilitates the measurement of the output power and total output voltage of solar photovoltaic panels. In addition, a detection device for photovoltaic systems is also provided.
[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: According to one aspect of this application, a testing method for a photovoltaic system is provided, the method comprising: The output voltage of the solar photovoltaic panel is measured by the first voltage measurement module in the detection device to obtain a first voltage, the voltage range of which is 0-90V; wherein, the first voltage measurement module is electrically connected to the control chip in the detection device, and the first voltage measurement module is capable of measuring voltages from 0-90V; The output current of the solar photovoltaic panel is measured by the first current measurement module in the detection device to obtain the first current; wherein, the first current measurement module is electrically connected to the control chip; The output power of the solar photovoltaic panel is determined by the output power determination module in the detection device based on the first voltage and the first current; wherein the output power determination module is electrically connected to the control chip; The second voltage measurement module in the detection device measures the total output voltage of the voltage output bus of multiple solar photovoltaic panels connected in series to obtain a second voltage, the voltage range of which is 0-2500V; wherein, the second voltage measurement module is electrically connected to the control chip, and the second voltage measurement module is capable of measuring voltages from 0-2500V; Information is displayed through a display module in the detection device; wherein the display module is electrically connected to the control chip.
[0006] The beneficial effects of this invention are as follows: In the measurement method of this embodiment, the output voltage of the solar photovoltaic panel is measured by a first voltage measurement module to obtain a first voltage. This first voltage measurement module can measure voltages from 0 to 90V, facilitating the determination of the output voltage of a single solar photovoltaic panel and improving the accuracy of the measurement. Furthermore, the output current of the solar photovoltaic panel is measured by a first current measurement module to obtain a first current, facilitating the determination of the output current. Furthermore, the output power determination module determines the output power of the solar photovoltaic panel based on the first voltage and the first current, thus aiding in determining the output power of the solar photovoltaic panel. Furthermore, the second voltage measurement module measures voltage to obtain a second voltage, facilitating the determination of the total output voltage of the photovoltaic system. Therefore, the detection method in this embodiment is beneficial for measuring the output power and total output voltage of the solar photovoltaic panel, and the detection equipment is portable, reducing the cost of using the detection equipment. Furthermore, the second voltage measurement module can measure voltages from 0 to 2500V, covering a wider voltage range, which helps improve the applicability of the detection device to the total output voltage. In addition, the display module displays information, making it easier for operators to understand the measurement data.
[0007] According to one embodiment of this application, multiple first voltages and multiple first currents are obtained. The output power determination module can determine the output power of the solar photovoltaic panel at different measurement time points based on the first voltage and first current at the same measurement time point, thereby obtaining multiple output power values. The method further includes: The maximum output power point determination module in the detection device compares the multiple output power values obtained by the output power determination module to obtain the maximum output power value among the multiple output power values, and obtains the time point corresponding to the maximum output power value to determine the maximum output power point of the solar photovoltaic panel during the measurement period; wherein, the maximum output power point determination module is electrically connected to the control chip.
[0008] In this embodiment, the maximum output power point determination module compares the multiple output power values obtained by the output power determination module to obtain the maximum output power value among the multiple output power values; the maximum output power point determination module also obtains the time point corresponding to the maximum output power value, thereby determining the maximum output power point of the solar photovoltaic panel within the measurement period, which is beneficial for determining the maximum output power value of the solar photovoltaic panel at different time periods.
[0009] According to one embodiment of this application, multiple first voltages and multiple first currents are obtained. The output power determination module can determine the output power of the solar photovoltaic panel at different measurement time points based on the first voltage and first current at the same measurement time point, thereby obtaining multiple output power values. The detection method for the photovoltaic system further includes: The output power curve is plotted by the output power curve plotting module in the detection device based on the multiple output power values determined by the output power determination module, and the output power curve plotted by the output power curve plotting module is displayed by the display module; wherein, the output power curve plotting module is electrically connected to the control chip, and the output power curve plotted by the output power curve plotting module can be displayed by the display module.
[0010] In this embodiment, the output power curve drawing module in the detection device draws an output power curve based on multiple output power values determined by the output power determination module, and the output power curve drawn by the output power curve drawing module is displayed by the display module, so that the operator can quickly understand the output power status based on the output power curve.
[0011] According to one embodiment of this application, the detection method for a photovoltaic system further includes: The tilt angle of the solar photovoltaic panel relative to the horizontal ground is measured by the tilt angle measurement module in the detection device to obtain the tilt angle of the solar photovoltaic panel relative to the horizontal ground; wherein, the tilt angle measurement module is electrically connected to the control chip; The light irradiance intensity received by the solar photovoltaic panel is measured by the light irradiance intensity measurement module in the detection device; wherein, the light irradiance intensity measurement module is electrically connected to the control chip; The tilt angle of the solar photovoltaic panel relative to the horizontal ground is adjusted by the tilt angle adjustment device, thereby adjusting the light irradiance received by the solar photovoltaic panel.
[0012] In this embodiment, the tilt angle measurement module is controlled by the control chip to measure the tilt angle data of the solar photovoltaic panel relative to the horizontal ground and transmit it to the control chip, which facilitates the acquisition of the tilt angle of the solar photovoltaic panel. Furthermore, the light irradiance intensity module is controlled by the control chip to measure the light irradiance intensity received by the solar photovoltaic panel and transmit it to the control chip, which facilitates the acquisition of the light irradiance intensity data received by the solar photovoltaic panel. This allows the tilt angle of the solar photovoltaic panel to be adjusted as needed by driving the tilt angle adjustment device, so that the tilt angle of the solar photovoltaic panel is suitable and the light irradiance intensity received by the solar photovoltaic panel is maximized.
[0013] According to one embodiment of this application, the detection method for a photovoltaic system further includes: The output power of the solar photovoltaic panel is adjusted by the output power adjustment module in the detection device; wherein the output power adjustment module is electrically connected to the control chip.
[0014] In this embodiment, the output power of the solar photovoltaic panel is adjusted by the output power adjustment module in the detection device, which helps to make the output power of the solar photovoltaic panel suitable.
[0015] According to another aspect of this application, a testing device for a photovoltaic system is provided for implementing the above-described testing method for a photovoltaic system, the testing device for a photovoltaic system comprising: The control chip; The first voltage measurement module is electrically connected to the control chip. The first voltage measurement module is used to measure the output voltage of the solar photovoltaic panel to obtain the first voltage. The first voltage measurement module can measure voltages from 0 to 90V. The first current measurement module is electrically connected to the control chip, and the first current measurement module is used to measure the output current of the solar photovoltaic panel to obtain the first current; The output power determination module is electrically connected to the control chip, and the output power determination module is used to determine the output power of the solar photovoltaic panel based on the first voltage and the first current. The second voltage measurement module is electrically connected to the control chip. The second voltage measurement module is used to measure voltage to obtain the second voltage. The second voltage measurement module can measure voltage from 0-2500V. The display module is electrically connected to the control chip and is used to display information.
[0016] The detection device in this embodiment includes a first voltage measurement module electrically connected to the control chip, which facilitates the measurement of the output voltage of the solar photovoltaic panel to obtain a first voltage. The first voltage measurement module can measure voltages from 0-90V, facilitating the measurement of the output voltage of a single solar photovoltaic panel and improving the accuracy of this measurement. Furthermore, the detection device includes a first current measurement module electrically connected to the control chip, which facilitates the measurement of the output current of the solar photovoltaic panel to obtain a first current. Additionally, the detection device includes an output power determination module, which facilitates the determination of the output power of the solar photovoltaic panel based on the first voltage and the first current, thereby improving efficiency. The detection device measures the output power of a solar photovoltaic panel. Furthermore, it includes a second voltage measurement module electrically connected to a control chip, facilitating the measurement of a second voltage and the measurement of the total output voltage of the photovoltaic system. Therefore, the detection device in this embodiment is advantageous for measuring the output power and total output voltage of the solar photovoltaic panel, is portable, and reduces the cost of using the detection equipment. Moreover, the second voltage measurement module can measure voltages from 0-2500V, covering a wide voltage range, which improves the applicability of the detection device to the total output voltage. Additionally, the detection device includes a display module for displaying measurement data and other information.
[0017] According to one embodiment of this application, there are multiple first voltages and multiple first currents. The output power determination module can determine the output power of the solar photovoltaic panel at different measurement time points based on the first voltage and the first current at the same measurement time point, thereby obtaining multiple output power values. The detection device for the photovoltaic system further includes: The maximum output power point determination module is electrically connected to the control chip. The maximum output power point determination module is used to compare multiple output power values determined by the output power determination module, obtain the maximum output power value among the multiple output power values, and obtain the time point corresponding to the maximum output power value, thereby determining the maximum output power point of the solar photovoltaic panel during the measurement period.
[0018] In this embodiment, the maximum output power point determination module is electrically connected to the control chip, which facilitates the comparison of multiple output power values obtained by the output power determination module to obtain the maximum output power value among the multiple output power values. It also facilitates the acquisition of the time point corresponding to the maximum output power value through the maximum output power point determination module, thereby determining the maximum output power point of the solar photovoltaic panel during the measurement period, which is beneficial for determining the maximum output power value of the solar photovoltaic panel at different time periods.
[0019] According to one embodiment of this application, the testing device for a photovoltaic system further includes: An output power adjustment module is electrically connected to the control chip, and the output power adjustment module is used to adjust the output power of the solar photovoltaic panel.
[0020] In this embodiment, an output power adjustment module is provided to facilitate the connection between the detection device and the solar photovoltaic panel. The output power of the solar photovoltaic panel can be adjusted as needed to ensure that the output power of the solar photovoltaic panel is suitable.
[0021] According to one embodiment of this application, there are multiple first voltages and multiple first currents. The output power determination module can determine the output power of the solar photovoltaic panel at different measurement time points based on the first voltage and the first current at the same measurement time point, thereby obtaining multiple output power values. The detection device for the photovoltaic system further includes: An output power curve plotting module is electrically connected to the control chip. The output power curve plotting module is used to plot an output power curve based on multiple output power values determined by the output power determination module. The output power curve plotted by the output power curve plotting module can be displayed through the display module.
[0022] In this embodiment, an output power curve plotting module is provided. The output power curve plotting module is electrically connected to the control chip, which facilitates the plotting of the output power curve based on multiple output power values obtained by the output power determination module. In addition, the output power curve plotted by the output power curve plotting module can be displayed through the display module, which allows operators to quickly understand the output power status based on the output power curve.
[0023] According to one embodiment of this application, the testing device for a photovoltaic system further includes: A light irradiance intensity measurement module is electrically connected to the control chip, and the light irradiance intensity module is used to measure the light irradiance intensity received by the solar photovoltaic panel; The tilt angle measurement module is electrically connected to the control chip and is used to measure the tilt angle of the solar photovoltaic panel relative to the horizontal ground.
[0024] In this embodiment, a light irradiance intensity measurement module is included, which is electrically connected to a control chip. This allows the control chip to control the light irradiance intensity module to measure the light irradiance intensity received by the solar photovoltaic panel and transmit the data to the control chip, thus obtaining the light irradiance intensity data received by the solar photovoltaic panel. Furthermore, a tilt angle measurement module is included, which is also electrically connected to the control chip. This allows the control chip to control the tilt angle measurement module to measure the tilt angle data of the solar photovoltaic panel relative to the horizontal ground and transmit the data to the control chip, thus obtaining the tilt angle of the solar photovoltaic panel. This facilitates the adjustment of the tilt angle of the solar photovoltaic panel as needed, ensuring that the tilt angle of the solar photovoltaic panel is suitable.
[0025] According to one embodiment of this application, the testing device for a photovoltaic system further includes: The photovoltaic multimeter function module is electrically connected to the control chip, and the photovoltaic multimeter function module is used to realize the functions of the photovoltaic multimeter.
[0026] In this embodiment, a photovoltaic multimeter function module is provided. The photovoltaic multimeter function module is electrically connected to the control chip, which integrates the functions of a photovoltaic multimeter into the testing device. This increases the functionality of the testing device and makes it easier to use the testing device to test and maintain the photovoltaic system. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in this invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a flowchart of a detection method for a photovoltaic system according to an embodiment of the present invention; Figure 2 This is a structural block diagram of a detection device for a photovoltaic system according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a detection device for a photovoltaic system according to an embodiment of the present invention; Figure 4 for Figure 3 Top view after straightening. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.
[0030] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.
[0032] One aspect of this application provides a testing method for photovoltaic systems, employing methods including... Figures 2 to 4 The testing device for photovoltaic systems shown is implemented as follows: Figure 1 As shown, the testing methods for photovoltaic systems include: Step S102: The output voltage of the solar photovoltaic panel is measured by the first voltage measurement module 10 in the detection device to obtain the first voltage, which has a voltage range of 0-90V; wherein, the first voltage measurement module 10 is electrically connected to the control chip 1 in the detection device, and the first voltage measurement module 10 can measure voltages of 0-90V. Step S104: The output current of the solar photovoltaic panel is measured by the first current measurement module 11 in the detection device to obtain the first current; wherein, the first current measurement module 11 is electrically connected to the control chip 1. Step S106: The output power of the solar photovoltaic panel is determined by the output power determination module 12 in the detection device based on the first voltage and the first current; wherein, the output power determination module 12 is electrically connected to the control chip 1. Step S108: The total output voltage of the voltage output bus of multiple solar photovoltaic panels connected in series is measured by the second voltage measurement module 14 in the detection device to obtain the second voltage, the voltage range of which is 0-2500V; wherein, the second voltage measurement module 14 is electrically connected to the control chip 1, and the second voltage measurement module 14 can measure voltages from 0-2500V. In step S110, information is displayed through the display module 19 in the detection device; wherein, the display module 19 is electrically connected to the control chip 1.
[0033] In this embodiment, as Figure 1As shown, in this embodiment, the measurement method uses a first voltage measurement module 10 to measure the output voltage of the solar photovoltaic panel to obtain a first voltage. The first voltage measurement module 10 can measure voltages from 0 to 90V, facilitating the determination of the output voltage of a single solar photovoltaic panel and improving the accuracy of the measurement. Furthermore, a first current measurement module 11 measures the output current of the solar photovoltaic panel to obtain a first current, facilitating the determination of the output current. Finally, an output power determination module 12 determines the output power of the solar photovoltaic panel based on the first voltage and the first current, thereby aiding in the determination of the output power of the solar photovoltaic panel. The output power of the solar photovoltaic panel is measured. Furthermore, a second voltage is obtained by measuring the voltage through the second voltage measurement module 14, which facilitates the determination of the total output voltage of the photovoltaic system. Therefore, the detection method in this embodiment is beneficial for measuring the output power and total output voltage of the solar photovoltaic panel, and the detection equipment is portable, reducing the cost of using the detection equipment. Furthermore, the second voltage measurement module 14 can measure voltages from 0-2500V, covering a wide voltage range, which helps improve the applicability of the detection device to the total output voltage. In addition, information is displayed through the display module 19, making it convenient for operators to understand the measurement data.
[0034] In this embodiment, the structure of a measuring device, including the structural block diagram of the measuring device for a photovoltaic system in this embodiment, is as follows: Figure 3 and Figure 4 As shown, it includes a housing 2. In this embodiment, the main components of the control chip 1, the first voltage measurement module 10, the first current measurement module 11, and the second voltage measurement module 14 are integrated on a circuit board, which is installed in the mounting cavity of the housing 2.
[0035] In this embodiment, as Figures 2 to 4 As shown, the display module 19 in this embodiment includes a display screen 20, which is disposed on the upper side of the housing 2. Specifically, the display screen 20 in this embodiment is a touch screen, which can be used for human-computer interaction. Further, a detection interface 3 24 and a detection interface 4 25 are installed on the rear side of the housing 2, which constitute a pair of detection interfaces. The detection interface 3 24 and the detection interface 4 25 are electrically connected to the first voltage measurement module 10 and the first current measurement module 11, respectively. When the output voltage of the solar photovoltaic panel is measured by the first voltage measurement module 10, the solar photovoltaic panel to be tested is electrically connected to the detection interface 3 24 and the detection interface 4 25 by a pair of detection probes before measurement. In addition, when the first current measurement module 11 measures the output current of the solar photovoltaic panel, the solar photovoltaic panel to be tested is also electrically connected to the detection interface 3 24 and the detection interface 4 25 by a pair of detection probes before measurement.
[0036] Furthermore, the front of the upper side of the housing 2 is provided with a detection interface 1 21, a detection interface 22, and a ground interface 23. The detection interface 1 21 and the detection interface 22 are electrically connected to the second voltage measurement module 14. In this embodiment, one of the detection interface 1 21 and the detection interface 22 is a 2500V positive interface, which can measure voltages from 0 to 2500V, and the other is a negative interface. When it is necessary to measure the total output voltage, the detection interface 1 21 and the detection interface 22 are electrically connected to the voltage output bus through a pair of detection leads to measure the total output voltage of the voltage output bus.
[0037] In this embodiment, as Figure 2 As shown, the measuring device for the photovoltaic system also includes a button control module 101, which is electrically connected to the control chip 1. The upper side of the housing 2 is provided with multiple buttons, which are electrically connected to the button control module 101 respectively.
[0038] One embodiment of this application, such as Figure 2 As shown, there are multiple first voltages and multiple first currents obtained. The output power determination module 12 can determine the output power of the solar photovoltaic panel at different measurement time points based on the first voltage and first current at the same measurement time point, thereby obtaining multiple output power values. The method also includes: The maximum output power point determination module 13 in the detection device compares the multiple output power values determined by the output power determination module 12 to obtain the maximum output power value among the multiple output power values, and obtains the time point corresponding to the maximum output power value to determine the maximum output power point of the solar photovoltaic panel during the measurement period; wherein, the maximum output power point determination module 13 is electrically connected to the control chip 1.
[0039] In this embodiment, as Figure 2 As shown, the maximum output power point determination module 13 compares the multiple output power values obtained by the output power determination module 12 to obtain the maximum output power value among the multiple output power values; the maximum output power point determination module 13 also obtains the time point corresponding to the maximum output power value, thereby determining the maximum output power point of the solar photovoltaic panel within the measurement period, which is beneficial for determining the maximum output power value of the solar photovoltaic panel at different time periods. It should be noted that the control chip 1 can simultaneously measure, collect, and store the first voltage and the first current at the same measurement time point to obtain the data of the first voltage and the first current.
[0040] One embodiment of this application, such as Figure 2As shown, there are multiple first voltages and multiple first currents obtained. The output power determination module 12 can determine the output power of the solar photovoltaic panel at different measurement time points based on the first voltage and first current at the same measurement time point, thus obtaining multiple output power values. The detection method for photovoltaic systems also includes: The output power curve is plotted by the output power curve plotting module 16 in the detection device based on multiple output power values determined by the output power determination module 12, and the output power curve plotted by the output power curve plotting module 16 is displayed by the display module 19. The output power curve plotting module 16 is electrically connected to the control chip 1, and the output power curve plotted by the output power curve plotting module 16 can be displayed by the display module 19.
[0041] In this embodiment, as Figure 2 As shown, the output power curve plotting module 16 in the detection device plots an output power curve based on multiple output power values determined by the output power determination module 12. The output power curve plotted by the output power curve plotting module 16 is then displayed by the display module 19, allowing operators to quickly understand the output power situation. It should be noted that the control chip 1 can simultaneously measure, collect, and store the first voltage and the first current at the same measurement time point, obtaining the data for the first voltage and the first current.
[0042] One embodiment of this application, such as Figure 2 As shown, the testing methods for photovoltaic systems also include: The tilt angle of the solar photovoltaic panel relative to the horizontal ground is measured by the tilt angle measurement module 17 in the detection device to obtain the tilt angle of the solar photovoltaic panel relative to the horizontal ground; wherein, the tilt angle measurement module 17 is electrically connected to the control chip 1. The light irradiance intensity received by the solar photovoltaic panel is measured by the light irradiance intensity measurement module in the detection device; wherein, the light irradiance intensity measurement module is electrically connected to the control chip 1; The tilt angle of the solar photovoltaic panel relative to the horizontal ground is adjusted by the tilt angle adjustment device, thereby adjusting the intensity of light irradiation received by the solar photovoltaic panel.
[0043] In this embodiment, as Figure 2As shown, the tilt angle measurement module 17 is controlled by the control chip 1 to measure the tilt angle data of the solar photovoltaic panel relative to the horizontal ground and transmit it to the control chip 1, so as to obtain the tilt angle of the solar photovoltaic panel. Furthermore, the light irradiance intensity module is controlled by the control chip 1 to measure the light irradiance intensity received by the solar photovoltaic panel and transmit it to the control chip 1, so as to obtain the light irradiance intensity data received by the solar photovoltaic panel. This facilitates the adjustment of the tilt angle of the solar photovoltaic panel by driving the tilt angle adjustment device as needed, so that the tilt angle of the solar photovoltaic panel is suitable and the light irradiance intensity received by the solar photovoltaic panel is maximized.
[0044] One embodiment of this application, such as Figure 2 As shown, the testing methods for photovoltaic systems also include: The output power of the solar photovoltaic panel is adjusted by the output power adjustment module 15 in the detection device; wherein, the output power adjustment module 15 is electrically connected to the control chip 1.
[0045] In this embodiment, as Figure 2 As shown, adjusting the output power of the solar photovoltaic panel through the output power adjustment module 15 in the detection device helps to make the output power of the solar photovoltaic panel suitable.
[0046] Another aspect of this application provides a testing device for a photovoltaic system, used to implement the aforementioned testing method for a photovoltaic system, such as... Figures 2 to 4 As shown, the testing device for photovoltaic systems includes: Control chip 1; The first voltage measurement module 10 is electrically connected to the control chip 1. The first voltage measurement module 10 is used to measure the output voltage of the solar photovoltaic panel to obtain the first voltage. The first voltage measurement module 10 can measure voltages from 0 to 90V. The first current measurement module 11 is electrically connected to the control chip 1. The first current measurement module 11 is used to measure the output current of the solar photovoltaic panel to obtain the first current. The output power determination module 12 is electrically connected to the control chip 1. The output power determination module 12 is used to determine the output power of the solar photovoltaic panel based on the first voltage and the first current. The second voltage measurement module 14 is electrically connected to the control chip 1. The second voltage measurement module 14 is used to measure voltage to obtain a second voltage. The second voltage measurement module 14 can measure voltage from 0 to 2500V. Display module 19 is electrically connected to control chip 1 and is used to display information.
[0047] In this embodiment, as Figures 2 to 4As shown, the detection device in this embodiment includes a first voltage measurement module 10 electrically connected to the control chip 1, which facilitates the measurement of the output voltage of the solar photovoltaic panel to obtain a first voltage. The first voltage measurement module 10 can measure voltages from 0-90V, facilitating the measurement of the output voltage of a single solar photovoltaic panel and improving the accuracy of the measurement. Furthermore, the detection device includes a first current measurement module 11 electrically connected to the control chip 1, which facilitates the measurement of the output current of the solar photovoltaic panel to obtain a first current. Further, the detection device also includes an output power determination module 12, which facilitates the determination of the output power of the solar photovoltaic panel based on the first voltage and the first current. This device facilitates the measurement of the output power of solar photovoltaic panels. Furthermore, the detection device also includes a second voltage measurement module 14, which is electrically connected to the control chip 1. This allows for the measurement of a second voltage using the second voltage measurement module 14, facilitating the measurement of the total output voltage of the photovoltaic system. Therefore, the detection device in this embodiment is advantageous for measuring the output power and total output voltage of solar photovoltaic panels, is portable, and reduces the cost of using the detection equipment. Furthermore, the second voltage measurement module 14 can measure voltages from 0 to 2500V, covering a wide voltage range, which improves the applicability of the detection device to the total output voltage. Additionally, the detection device includes a display module 19, which facilitates the display of measurement data and other information.
[0048] One embodiment of this application, such as Figure 2 As shown, there are multiple first voltages and multiple first currents. The output power determination module 12 can determine the output power of the solar photovoltaic panel at different measurement time points based on the first voltage and first current at the same measurement time point, thereby obtaining multiple output power values. The detection device for the photovoltaic system also includes: The maximum output power point determination module 13 is electrically connected to the control chip 1. The maximum output power point determination module 13 is used to compare the multiple output power values determined by the output power determination module 12, obtain the maximum output power value among the multiple output power values, and obtain the time point corresponding to the maximum output power value, thereby determining the maximum output power point of the solar photovoltaic panel during the measurement period.
[0049] In this embodiment, as Figure 2As shown, the maximum output power point determination module 13 is electrically connected to the control chip 1, which facilitates the comparison of multiple output power values determined by the output power determination module 12 to obtain the maximum output power value among the multiple output power values. It also facilitates the acquisition of the time point corresponding to the maximum output power value through the maximum output power point determination module 13, thereby determining the maximum output power point of the solar photovoltaic panel during the measurement period, which is beneficial for determining the maximum output power value of the solar photovoltaic panel at different time periods.
[0050] In this embodiment, the maximum output power point determination module 13 is integrated on the circuit board, which is installed in the mounting cavity of the housing 2. In addition, the specific technology for comparing the multiple output power values determined by the output power determination module 12 through the maximum output power point determination module 13 to obtain the maximum output power value among the multiple output power values can be referred to the prior art, and will not be described in detail here.
[0051] One embodiment of this application, such as Figure 2 As shown, the testing device for photovoltaic systems also includes: The output power adjustment module 15 is electrically connected to the control chip 1 and is used to adjust the output power of the solar photovoltaic panel.
[0052] In this embodiment, as Figure 2 As shown, by providing an output power adjustment module 15, it is easy to connect the detection device to the solar photovoltaic panel, and it is easy to adjust the output power of the solar photovoltaic panel as needed through the output power adjustment module 15 so that the output power of the solar photovoltaic panel is suitable.
[0053] One embodiment of this application, such as Figure 2 As shown, there are multiple first voltages and multiple first currents. The output power determination module 12 can determine the output power of the solar photovoltaic panel at different measurement time points based on the first voltage and first current at the same measurement time point, thereby obtaining multiple output power values. The detection device for the photovoltaic system also includes: The output power curve plotting module 16 is electrically connected to the control chip 1. The output power curve plotting module 16 is used to plot the output power curve based on the multiple output power values determined by the output power determination module 12. The output power curve plotted by the output power curve plotting module 16 can be displayed by the display module 19.
[0054] In this embodiment, as Figure 2As shown, an output power curve plotting module 16 is provided, which is electrically connected to the control chip 1. This allows the output power curve to be plotted by the output power curve plotting module 16 based on multiple output power values determined by the output power determination module 12. In addition, the output power curve plotted by the output power curve plotting module 16 can be displayed by the display module 19, allowing operators to quickly understand the output power situation based on the output power curve.
[0055] One embodiment of this application, such as Figure 2 As shown, the testing device for photovoltaic systems also includes: The light irradiance intensity measurement module is electrically connected to the control chip 1. The light irradiance intensity module is used to measure the light irradiance intensity received by the solar photovoltaic panel. The tilt angle measurement module 17 is electrically connected to the control chip 1. The tilt angle measurement module 17 is used to measure the tilt angle of the solar photovoltaic panel relative to the horizontal ground.
[0056] In this embodiment, as Figure 2 As shown, by providing a light irradiance intensity measurement module, which is electrically connected to the control chip 1, it is convenient to control the light irradiance intensity module to measure the light irradiance intensity received by the solar photovoltaic panel and transmit it to the control chip 1 to obtain the light irradiance intensity data received by the solar photovoltaic panel. Furthermore, by providing a tilt angle measurement module 17, which is electrically connected to the control chip 1, it is convenient to control the tilt angle measurement module 17 to measure the tilt angle data of the solar photovoltaic panel relative to the horizontal ground and transmit it to the control chip 1 to obtain the tilt angle of the solar photovoltaic panel. This facilitates the adjustment of the tilt angle of the solar photovoltaic panel as needed, so that the tilt angle of the solar photovoltaic panel is suitable.
[0057] In this embodiment, the light irradiance measurement module includes a silicon photodiode radiometer. The silicon photodiode radiometer directly converts light radiation information into measurable current or voltage signals. The converted current or voltage signals can be amplified by a signal amplifier circuit and converted from analog to digital to obtain the light irradiance.
[0058] In this embodiment, the tilt angle measurement module 17 includes a tilt sensor, which is installed inside the housing 2. When the measuring device is installed on the panel of the solar photovoltaic panel, the tilt sensor detects the tilt angle of the solar photovoltaic panel relative to the horizontal ground and transmits the angle data to the control chip 1.
[0059] One embodiment of this application, such as Figure 2 As shown, the testing device for photovoltaic systems also includes: The photovoltaic multimeter function module 18 is electrically connected to the control chip 1, and the photovoltaic multimeter function module 18 is used to realize the functions of the photovoltaic multimeter.
[0060] In this embodiment, as Figure 2 As shown, by providing a photovoltaic multimeter function module 18, which is electrically connected to the control chip 1, the testing device integrates the functions of a photovoltaic multimeter, increasing the functionality of the testing device and facilitating the testing and maintenance of the photovoltaic system.
[0061] In this embodiment, the photovoltaic multimeter functional module 18 includes a resistance detection unit, a short-circuit current measurement unit, and a diode testing unit. The resistance detection unit is used to measure resistance, the short-circuit current measurement unit is used to measure short-circuit current, and the diode testing unit is used to test the diode to determine whether the diode is broken down or failed. Furthermore, the photovoltaic multimeter functional module 18 in this embodiment includes a detection interface 21 and a detection interface 22, which serve as the detection interfaces of the photovoltaic multimeter functional module 18. Further, the photovoltaic multimeter functional module 18 may also include other functional units. In this embodiment, the function of the photovoltaic multimeter is integrated into the measuring device, sharing a control chip 1 with the measuring device, thus integrating the photovoltaic multimeter's function into the measuring device and increasing the device's functionality. Additionally, the specific structure and function of the photovoltaic multimeter can be referenced from existing technologies and will not be elaborated here. The specific method of integrating the photovoltaic multimeter's function into the measuring device can also refer to existing integration technologies, and the specific integration technology is not the focus of this application and will not be detailed here.
[0062] One embodiment of this application, such as Figure 2 As shown, the measuring device for the photovoltaic system also includes: Storage module 102 is electrically connected to control chip 1 and is used to store measurement data obtained from the measurement. The power module 103 and the control chip 1 are powered by the power module 103.
[0063] The measuring device in this embodiment also includes a storage module 102, which facilitates the storage of measurement data obtained through the storage module 102; in addition, by providing a power module 103, it is convenient to supply power to the control chip 1 through the power module 103, so that the measuring device can be moved and used when there is no fixed power supply.
[0064] In this embodiment, the power module 103 includes a power supply battery, which is disposed inside the housing 2; the power supply battery is preferably a rechargeable battery; in addition, the storage module 102 in this embodiment is integrated on the circuit board, and the measurement data, operation data and other data in this embodiment can be stored in the storage module 102 and recorded; the specific arrangement of the storage module 102 and the power module 103 can also refer to the prior art, and will not be described in detail here.
[0065] In addition to the technical solutions disclosed in this embodiment, the circuit board, control chip 1, other parts of the photovoltaic system and their working principles in this invention can be referred to conventional technical solutions in this technical field. However, these conventional technical solutions are not the focus of this invention, and will not be described in detail here.
[0066] In this invention, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0067] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0068] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0069] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A detection method for photovoltaic systems, characterized in that, The method includes: The output voltage of the solar photovoltaic panel is measured by the first voltage measurement module in the detection device to obtain a first voltage, the voltage range of which is 0-90V; wherein, the first voltage measurement module is electrically connected to the control chip in the detection device, and the first voltage measurement module is capable of measuring voltages from 0-90V; The output current of the solar photovoltaic panel is measured by the first current measurement module in the detection device to obtain the first current; wherein, the first current measurement module is electrically connected to the control chip; The output power of the solar photovoltaic panel is determined by the output power determination module in the detection device based on the first voltage and the first current; wherein the output power determination module is electrically connected to the control chip; The second voltage measurement module in the detection device measures the total output voltage of the voltage output bus of multiple solar photovoltaic panels connected in series to obtain a second voltage, the voltage range of which is 0-2500V; wherein, the second voltage measurement module is electrically connected to the control chip, and the second voltage measurement module is capable of measuring voltages from 0-2500V; Information is displayed through a display module in the detection device; wherein the display module is electrically connected to the control chip.
2. The detection method for photovoltaic systems according to claim 1, characterized in that, The first voltage and the first current are obtained in multiple ways. The output power determination module can determine the output power of the solar photovoltaic panel at different measurement time points based on the first voltage and the first current at the same measurement time point, and obtain multiple output power values. The method further includes: The maximum output power point determination module in the detection device compares the multiple output power values obtained by the output power determination module to obtain the maximum output power value among the multiple output power values, and obtains the time point corresponding to the maximum output power value to determine the maximum output power point of the solar photovoltaic panel during the measurement period; wherein, the maximum output power point determination module is electrically connected to the control chip.
3. The detection method for photovoltaic systems according to claim 1, characterized in that, The first voltage and the first current are obtained in multiple ways. The output power determination module can determine the output power of the solar photovoltaic panel at different measurement time points based on the first voltage and the first current at the same measurement time point, and obtain multiple output power values. The method further includes: The output power curve is plotted by the output power curve plotting module in the detection device based on the multiple output power values determined by the output power determination module, and the output power curve plotted by the output power curve plotting module is displayed by the display module; wherein, the output power curve plotting module is electrically connected to the control chip, and the output power curve plotted by the output power curve plotting module can be displayed by the display module.
4. The detection method for photovoltaic systems according to claim 1, characterized in that, The method further includes: The tilt angle of the solar photovoltaic panel relative to the horizontal ground is measured by the tilt angle measurement module in the detection device to obtain the tilt angle of the solar photovoltaic panel relative to the horizontal ground; wherein, the tilt angle measurement module is electrically connected to the control chip; The light irradiance intensity received by the solar photovoltaic panel is measured by the light irradiance intensity measurement module in the detection device; wherein, the light irradiance intensity measurement module is electrically connected to the control chip; The tilt angle of the solar photovoltaic panel relative to the horizontal ground is adjusted by the tilt angle adjustment device, thereby adjusting the intensity of light irradiation received by the solar photovoltaic panel.
5. The detection method for photovoltaic systems according to claim 1, characterized in that, The method further includes: The output power of the solar photovoltaic panel is adjusted by the output power adjustment module in the detection device; wherein the output power adjustment module is electrically connected to the control chip.
6. A testing device for a photovoltaic system, used to implement the testing method for a photovoltaic system as described in claim 1, characterized in that, include: The control chip; The first voltage measurement module is electrically connected to the control chip. The first voltage measurement module is used to measure the output voltage of the solar photovoltaic panel to obtain the first voltage. The first voltage measurement module can measure voltages from 0 to 90V. The first current measurement module is electrically connected to the control chip, and the first current measurement module is used to measure the output current of the solar photovoltaic panel to obtain the first current; The output power determination module is electrically connected to the control chip, and the output power determination module is used to determine the output power of the solar photovoltaic panel based on the first voltage and the first current. The second voltage measurement module is electrically connected to the control chip. The second voltage measurement module is used to measure voltage to obtain the second voltage. The second voltage measurement module can measure voltage from 0-2500V. The display module is electrically connected to the control chip, and the display module is used to display information.
7. The testing device for a photovoltaic system according to claim 6, characterized in that, There are multiple first voltages and multiple first currents. The output power determination module can determine the output power of the solar photovoltaic panel at different measurement time points based on the first voltage and the first current at the same measurement time point, and obtain multiple output power values. Also includes: The maximum output power point determination module is electrically connected to the control chip. The maximum output power point determination module is used to compare multiple output power values determined by the output power determination module, obtain the maximum output power value among the multiple output power values, and obtain the time point corresponding to the maximum output power value, thereby determining the maximum output power point of the solar photovoltaic panel during the measurement period.
8. The detection device for a photovoltaic system according to claim 6, characterized in that, Also includes: An output power adjustment module is electrically connected to the control chip, and the output power adjustment module is used to adjust the output power of the solar photovoltaic panel.
9. The detection device for a photovoltaic system according to claim 6, characterized in that, There are multiple first voltages and multiple first currents. The output power determination module can determine the output power of the solar photovoltaic panel at different measurement time points based on the first voltage and the first current at the same measurement time point, and obtain multiple output power values. Also includes: An output power curve plotting module is electrically connected to the control chip. The output power curve plotting module is used to plot an output power curve based on multiple output power values determined by the output power determination module. The output power curve plotted by the output power curve plotting module can be displayed by the display module.
10. The detection device for a photovoltaic system according to any one of claims 6 to 9, characterized in that, Also includes: A light irradiance intensity measurement module is electrically connected to the control chip, and the light irradiance intensity module is used to measure the light irradiance intensity received by the solar photovoltaic panel; The tilt angle measurement module is electrically connected to the control chip and is used to measure the tilt angle of the solar photovoltaic panel relative to the horizontal ground.
11. The detection device for a photovoltaic system according to any one of claims 6 to 9, characterized in that, Also includes: The photovoltaic multimeter function module is electrically connected to the control chip, and the photovoltaic multimeter function module is used to realize the functions of the photovoltaic multimeter.