JP-7855418-B2 - Solar power generation system inspection device and inspection method

Inventors

• 星 岳志
• 中島 弘達
• 小林 徳康
• 向野 隆
• 赤木 靖夫

Assignees

• 株式会社東芝
• 東芝エネルギーシステムズ株式会社

Dates

Publication Date

20260508

Application Date

20220620

Claims (14)

1. A solar power generation system inspection device that monitors the operating status of a solar power generation system equipped with solar panels , A soil condition detection mechanism for detecting the soil condition in the area where the aforementioned solar power generation system is installed and the surrounding area, A data acquisition unit that stores data indicating the soil condition detected by the soil condition detection mechanism, A data analysis unit analyzes the latest data detected by the soil condition detection mechanism and stored in the data acquisition unit, The system comprises a data determination unit that determines whether or not there is an abnormality in the soil condition based on the analysis results from the data analysis unit, The soil condition detection mechanism is The detection is aligned using periodic points where the mounting frame on which the solar panels are attached is in contact with the soil as reference points. A solar power generation system inspection device characterized by the following.
2. A solar power generation system inspection device according to claim 1, A solar power generation system inspection device characterized in that the soil condition detection mechanism includes a soil shape detection mechanism for detecting the shape of the soil.
3. A solar power generation system inspection device according to claim 2, A solar power generation system inspection device characterized in that the soil shape detection mechanism is a laser scanning shape measurement mechanism that detects the shape by scanning and irradiating with a laser.
4. A solar power generation system inspection device according to claim 3, A solar power generation system inspection device characterized in that the soil shape detection mechanism detects the soil shape based on positional information of the parts of the structure constituting the solar power generation system that are in contact with the soil, using the laser scan shape measurement mechanism.
5. A solar power generation system inspection device according to claim 4, A solar power generation system inspection device characterized by using ground contact position information of the legs of the solar panel mounting frame as location information of the parts of the structure constituting the solar power generation system that are in contact with the soil.
6. A solar power generation system inspection device according to claim 1 or 2, A solar power generation system inspection device characterized in that the soil condition detection mechanism includes a moisture content measurement mechanism for detecting the moisture content of the soil.
7. A solar power generation system inspection device according to claim 6, A solar power generation system inspection device characterized in that the moisture content measurement mechanism detects the moisture content of the soil by at least one of the following: imaging using near-infrared light, measurement of electrical resistance, and measurement of microwave attenuation.
8. A solar power generation system inspection device according to claim 1 or 2, A solar power generation system inspection device characterized in that the soil condition detection mechanism includes an installation stability evaluation mechanism that evaluates the installation stability of the structures constituting the solar power generation system installed in the soil with respect to the soil using elastic waves.
9. A solar power generation system inspection device according to claim 8, A solar power generation system inspection device characterized in that the installation stability evaluation mechanism uses the legs of the mounting frame of the solar panels constituting the solar power generation system as input and output positions for elastic waves.
10. A solar power generation system inspection device according to claim 1 or 2, A solar power generation system inspection device characterized in that the soil condition detection mechanism is mounted on a mobile body capable of automatic navigation.
11. A solar power generation system inspection device according to claim 10, A solar power generation system inspection device characterized in that the mobile body includes one of the following: a drone, a self-propelled vehicle, or a walking robot.
12. A solar power generation system inspection device according to claim 11, A solar power generation system inspection device characterized in that the mobile body is a drone, and the soil condition detection mechanism is suspended from the drone.
13. A solar power generation system inspection device according to claim 1 or 2, A data acquisition unit that records monitoring data regarding the operating status of the aforementioned solar power generation system, A data analysis unit that analyzes the monitoring data stored in the data acquisition unit, A data determination unit that determines whether or not there is an abnormality based on the analysis results by the data analysis unit, A solar power generation system inspection device characterized by comprising the following:
14. A method for inspecting a solar power generation system equipped with solar panels, which monitors the operating status of the solar power generation system, A soil condition detection mechanism for detecting the soil condition in the area where the aforementioned solar power generation system is installed and the surrounding area, A data acquisition unit that stores data indicating the soil condition detected by the soil condition detection mechanism, A data analysis unit analyzes the latest data detected by the soil condition detection mechanism and stored in the data acquisition unit, A data determination unit determines whether or not there is an abnormality in the soil condition based on the analysis results from the data analysis unit, It is equipped with, A method for inspecting a solar power generation system, characterized in that the inspection is performed using a solar power generation system inspection device that aligns the detection position of the soil condition detection mechanism using periodic points where the frame on which the solar panels are mounted is in contact with the soil as reference points .

Description

Embodiments of the present invention relate to a solar power generation system inspection device and inspection method. The operation and maintenance of solar power generation systems are increasingly demanding automation and unmanned operation through automated inspection devices, due to the increasing severity of natural disasters in recent years and concerns about a future shortage of electrical safety personnel. The installation environments for solar power generation systems are diverse, including sloping ground and on water, and depending on the installation environment, access by inspection personnel may be difficult. Therefore, it has been proposed to inspect solar power generation systems using inspection tools such as drones and mobile robots. Patent No. 5197642 A schematic diagram showing the general configuration of a photovoltaic power generation system according to this embodiment.A schematic diagram showing the general configuration of a solar power generation system inspection device according to an embodiment.A diagram showing an example of a measurement method for a solar power generation system inspection device according to an embodiment.A diagram showing an example of a measurement method for a solar power generation system inspection device according to an embodiment.A diagram showing an example of a measurement method for a solar power generation system inspection device according to an embodiment.A diagram showing an example of a measurement method for a solar power generation system inspection device according to an embodiment.A diagram showing an example of a measurement method for a solar power generation system inspection device according to an embodiment.A diagram showing an example of a measurement method for a solar power generation system inspection device according to an embodiment. The embodiments will be described below with reference to the drawings. Figure 1 schematically shows the general configuration of the solar power generation system 1 being inspected in the embodiment. As shown in Figure 1, many of the structures constituting the solar power generation system 1, such as the solar panels 101, are installed on a frame 102, which is made up of piles driven into the soil 2. The soil 2 is often well-maintained terrain, but it may also be sloped or have a complex shape, and the surrounding environment often includes exposed cliff faces 3, etc. Due to natural disasters such as typhoons and crustal movements such as earthquakes, the shape of soil 2 and slope 3 may change. If the degree of change becomes significant, there is a concern that part of the solar power generation system 1 may be damaged due to soil subsidence or landslides. Quantitatively measuring these changes in soil 2 and slope 3 during periodic inspections and capturing the trends in change provides crucial information for the operation and maintenance of the solar power generation system 1. Furthermore, since data acquisition during periodic inspections may be difficult for inspection personnel to access depending on the environment of the solar power generation system 1, it is desirable to use an automated inspection tool that does not require access by inspection personnel. Therefore, in this embodiment, a soil condition detection mechanism 105 is mounted on a mobile body 104, such as a drone 103, to detect the soil condition. The example shown in Figure 1 illustrates a case where a laser scanner 106 is used as the soil condition detection mechanism 105. The laser 107 emitted from the laser scanner 106 periodically measures the shape of the soil 2 and the slope 3. By comparing the current shape measurement result with previous shape measurement results, for example, changes in the shape of the soil 2 and the slope 3 can be detected, and their stability can be evaluated. The soil monitoring targets are the area where the solar power generation system 1 is installed (soil 2 in Figure 1) and the surrounding area (slope 3 in Figure 1, etc.). The surrounding area refers to areas such as the slope 3 of the cliff shown in Figure 1, where there is a risk of damage to the solar power generation system 1 due to subsidence, landslides, etc. In particular, in the case of solar power generation system 1, there are periodically occurring points of contact with the soil, such as the legs of the mounting frame 102 on which the solar panels 101 are placed. Since these locations are fixed points, they can be used as reference points 108 for shape measurement. Therefore, when conducting periodic inspections and evaluating changes over time, there is the advantage of being able to easily align the system using the reference points 108. Figure 2 is a schematic diagram showing the overall configuration of the solar power generation system inspection device according to this embodiment. As shown in Figure 2, the solar power generation system inspection device comprises a mobile body 104 such as a drone 103 and a solar power g