Photovoltaic support assembly damage detection emergency device
By designing a photovoltaic bracket assembly damage detection emergency device including relay module, single fire power supply module, DCDC module, MCU module and wireless communication module, the problem of power generation reduction caused by damage to the photovoltaic bracket assembly in the photovoltaic power station is solved, real-time detection and fault treatment are achieved, and user power generation losses are reduced.
Patent Information
- Application Number
- CN202421909236.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-08
AI Technical Summary
In photovoltaic power stations, damage to the photovoltaic bracket assembly will lead to a reduction in the power generation of the entire string. It is difficult for the prior art to detect and eliminate the impact of damaged components in real time, resulting in poor real-time processing and high labor costs.
Design an emergency device for damage detection of photovoltaic bracket components, including relay modules, single-fire power generation modules, DCDC modules, MCU modules and wireless communication modules. Through the electrical connection and control of these modules, real-time detection and fault handling of photovoltaic power generation components are realized.
Real-time damage detection and fault treatment of photovoltaic power generation components are realized, and the impact of damaged components on the string is eliminated in a timely manner, so that other photovoltaic power generation components can generate power normally, effectively reducing the loss of user power generation.
Smart Images
Figure CN222996276U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of photovoltaic equipment, in particular to an emergency device for detecting damage to a photovoltaic bracket assembly. Background Technique
[0002] In a photovoltaic power station, several photovoltaic power generation components are installed on each photovoltaic bracket. Usually, electricity is collected centrally by connecting multiple photovoltaic power generation components in series, such as Figure 2 the series connection method shown.
[0003] In this process, due to the nature of the series connection, once one or more photovoltaic power generation components in the series string are damaged, the multiple groups of photovoltaic power generation components in this series string will not be able to collect and generate electricity. In the traditional method, users need to obtain the power generation data of the photovoltaic bracket through an inverter system, etc., and then monitor, analyze, and compare the data to find out whether there are faults in the photovoltaic power generation components of the photovoltaic bracket. Finally, on-site workers will check the fault points and troubleshoot and repair the relevant faults. This not only has a high labor cost, but also has poor real-time processing, a long cycle, and affects power generation. Therefore, how to be able to judge in real time whether the photovoltaic power generation components are damaged and eliminate their impact on the series string in time, so that other photovoltaic power generation components in the series string can generate electricity normally, and minimize the power generation loss of users has become an urgent problem to be solved by those skilled in the art. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide an emergency device for detecting damage to a photovoltaic bracket assembly, which can realize real-time judgment of whether the photovoltaic power generation components are damaged and eliminate their impact on the series string in time, so that other photovoltaic power generation components in the series string can generate electricity normally, and effectively reduce the power generation loss of users.
[0005] The utility model is realized by the following technical solutions:
[0006] An emergency device for detecting damage to a photovoltaic bracket assembly, which is connected in parallel with the component to be measured, includes a relay module, a single-phase power extraction module, a DCDC module, an MCU module, and a wireless communication module. The positive and negative poles of the relay module coil are electrically connected to the positive and negative poles of the component to be measured through the DCDC module. The normally closed end of the relay module is electrically connected to the positive pole of the component to be measured through the single-phase power extraction module. The common end of the relay module is electrically connected to the negative pole of the component to be measured. The MCU module is electrically connected to the positive and negative poles of the component to be measured through the DCDC module. The MCU module is electrically connected to the single-phase power extraction module. The wireless communication module is electrically connected to the output end of the MCU module, and the wireless communication module is signal-connected to the wireless gateway.
[0007] The working principle of this patent is that when the component under test is working properly, the DCDC module is used to convert the voltage into the working voltages of the relay module coil and the MCU module. The normally closed terminal of the relay module is in the off state. When the component under test fails, the normally closed terminal of the relay module is connected, the single-phase power extraction module is powered on, the DCDC module cuts off power due to no pressure difference, and the single-phase power extraction module supplies power to the MCU module. This patent realizes real-time judgment of whether the photovoltaic power generation component is damaged and timely eliminates its influence on the string, enabling other photovoltaic power generation components in the string to generate electricity normally and effectively reducing the power generation loss of users.
[0008] According to the above technical solution, preferably, when the component under test is working properly, the DCDC module is used to convert the voltage into the working voltages of the relay module coil and the MCU module. The normally closed terminal of the relay module is in the off state.
[0009] According to the above technical solution, preferably, when the component under test fails, the normally closed terminal of the relay module is connected, the single-phase power extraction module is powered on, the DCDC module cuts off power due to no pressure difference, and the single-phase power extraction module supplies power to the MCU module.
[0010] According to the above technical solution, preferably, the wireless communication module includes one or more of a LoRa wireless module, Bluetooth, ZigBee, and an NB-IoT communication module.
[0011] According to the above technical solution, preferably, it further includes a data storage medium, and the data storage medium is electrically connected to the MCU module.
[0012] According to the above technical solution, preferably, the data storage medium includes an EEPROM module.
[0013] According to the above technical solution, preferably, it further includes an alarm lamp, and the alarm lamp is electrically connected to the MCU module.
[0014] The beneficial effects of this utility model are:
[0015] (1) When the component under test is working properly, the DCDC module is used to convert the voltage into the working voltages of the relay module coil and the MCU module. The normally closed terminal of the relay module is in the off state. When the component under test fails, the normally closed terminal of the relay module is connected, the single-phase power extraction module is powered on, the DCDC module cuts off power due to no pressure difference, and the single-phase power extraction module supplies power to the MCU module.
[0016] (2) This patent realizes real-time judgment of whether the photovoltaic power generation component is damaged and timely eliminates its influence on the string, enabling other photovoltaic power generation components in the string to generate electricity normally and effectively reducing the power generation loss of users. Description of the Drawings
[0017] Figure 1 Shows the structural schematic diagram of this utility model;
[0018] Figure 2 shows a schematic structural diagram of a conventional photovoltaic power generation module string;
[0019] Figure 3 shows a schematic structural diagram of a photovoltaic power generation module string after the application of the present invention; Detailed implementation manners
[0020] In order to enable those skilled in the art of the present technology to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and the best embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.
[0021] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.
[0022] As Figures 1 - 3 shown, the present invention provides a photovoltaic support assembly damage detection emergency device, which is connected in parallel with the component to be measured, and includes a relay module, a single-phase power extraction module, a DCDC module, an MCU module, and a wireless communication module. The positive and negative poles of the relay module coil are electrically connected to the positive and negative poles of the component to be measured through the DCDC module. Here, the component to be measured is the photovoltaic power generation component. The normally closed end of the relay module is electrically connected to the positive pole of the component to be measured through the single-phase power extraction module. The common end of the relay module is electrically connected to the negative pole of the component to be measured. The MCU module is electrically connected to the positive and negative poles of the component to be measured through the DCDC module. The MCU module is electrically connected to the single-phase power extraction module. The wireless communication module is electrically connected to the output end of the MCU module. The wireless communication module is signal-connected to the wireless gateway. When the component to be measured works normally, the DCDC module is used to convert the voltage into the working voltage of the relay module coil and the MCU module. The normally closed end of the relay module is in an open state. When the component to be measured fails, the normally closed end of the relay module is connected, the single-phase power extraction module is powered on, the DCDC module has no voltage difference and is powered off, and the single-phase power extraction module supplies power to the MCU module, thereby realizing quickly disconnecting the faulty component to be measured from the string and connecting the parallel-connected detection emergency device to the string, so that the remaining photovoltaic power generation components in the string can generate electricity normally without interruption.
[0023] Optionally, in a possible implementation, the wireless communication module includes one or more of a LoRa wireless module, Bluetooth, ZigBee, and an NB-IoT communication module, facilitating the real-time or periodic transmission of the working status of the component under test to the wireless gateway, effectively alerting the staff to the working status of the component under test.
[0024] Optionally, in a possible implementation, it further includes a data storage medium, which is electrically connected to the MCU module.
[0025] Optionally, in a possible implementation, the data storage medium includes an EEPROM module for storing the working status information.
[0026] Optionally, in a possible implementation, it further includes an alarm lamp, which is electrically connected to the MCU module, realizing a quick feedback alarm and facilitating the staff to quickly handle the faulty photovoltaic power generation component.
[0027] The beneficial effects of this embodiment are as follows:
[0028] (1) When the component under test is working properly, the DCDC module is used to convert the voltage into the working voltages of the relay module coil and the MCU module. The normally closed end of the relay module is in an open state. When the component under test fails, the normally closed end of the relay module is connected, the single-phase power extraction module is powered on, the DCDC module loses voltage difference and powers off, and the single-phase power extraction module powers the MCU module.
[0029] (2) This patent realizes the real-time judgment of whether the photovoltaic power generation component is damaged and timely eliminates its influence on the string, enabling other photovoltaic power generation components in the string to generate electricity normally, effectively reducing the power generation loss of users.
[0030] Obviously, the above embodiments are merely examples for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A photovoltaic support assembly damage detection emergency device, characterized in that: It is connected in parallel with the component under test, including a relay module, a single-fire power supply module, a DCDC module, an MCU module and a wireless communication module. The positive and negative electrodes of the relay module coil are electrically connected to the positive and negative electrodes of the component under test through the DCDC module, the normally closed end of the relay module is electrically connected to the positive electrode of the component under test through the single-fire power supply module, the common end of the relay module is electrically connected to the negative electrode of the component under test, the MCU module is electrically connected to the positive and negative electrodes of the component under test through the DCDC module, the MCU module is electrically connected to the single-fire power supply module, the wireless communication module is electrically connected to the output end of the MCU module, and the wireless communication module is connected to the wireless gateway signal.
2. A photovoltaic support assembly damage detection emergency device according to claim 1, characterized in that: When the component under test works normally, the DCDC module is used to convert the voltage into the operating voltage of the relay module coil and the MCU module, and the normally closed end of the relay module is in a disconnected state.
3. A photovoltaic support assembly damage detection emergency device according to claim 2, characterized in that: When the component under test fails, the normally closed end of the relay module is connected, the single-fire power supply module is energized, the DCDC module is powered off without pressure difference, and the single-fire power supply module supplies power to the MCU module.
4. A photovoltaic support assembly damage detection emergency device according to claim 3, characterized in that: The wireless communication module includes one or more of LoRa wireless module, Bluetooth, ZigBee and NB-IoT communication module.
5. A photovoltaic support assembly damage detection emergency device according to claim 4, characterized in that: It also includes a data storage medium, which is electrically connected to the MCU module.
6. A photovoltaic support assembly damage detection emergency device according to claim 5, characterized in that: The data storage medium includes an EEPROM module.
7. A photovoltaic support assembly damage detection emergency device according to claim 6, characterized in that: It also includes an alarm light, which is electrically connected to the MCU module.