Photovoltaic power generation low voltage ride through detection device

Abstract

The utility model provides a kind of photovoltaic power generation low voltage ride through detection device, it is related to voltage detection technical field, including installation guide rail, installation guide rail is used to provide installation platform;Mobile station, two mobile stations are provided, two mobile stations are slidably installed on installation guide rail, and two mobile stations are symmetrically distributed on installation guide rail, and detection probe is fixedly installed on two mobile stations;Adjusting part, adjusting part is set on installation guide rail, and adjusting part is drivingly connected with mobile station, adjusting part is used to adjust the spacing of two mobile stations;Detector, detector is fixedly installed on installation guide rail, and the detection end of detector is electrically connected with two detection probes respectively.The utility model utilizes adjusting part to change the spacing of mobile station and detection probe, can carry out quick detection to voltage equipment of different size specifications, greatly improves the detection efficiency of voltage equipment, with Simple structure, it is easy to operate Characteristics.

Description

Technical Field

[0001] This utility model relates to the field of voltage detection technology, specifically to a photovoltaic power generation low voltage ride-through detection device. Background Technology

[0002] Low Voltage Ride Through (LVRT) testing for photovoltaic (PV) power generation is a crucial test for evaluating the ability of a PV power plant to maintain grid-connected operation, avoid disconnection, and support grid stability when voltage dips occur. It is a mandatory requirement for grid-connected operation of PV power plants. Its core objective is to verify whether the PV system can continuously supply active / reactive power to the grid for a specified time when the grid voltage drops suddenly (such as during short-circuit faults or disturbances), and quickly resume normal operation after the voltage recovers.

[0003] Currently, voltage testing is performed using a multimeter. During voltage testing, a test probe needs to be used to contact the electrodes of the voltage testing device, and the multimeter is then used to make the measurement. However, using a test probe is inefficient, and when the voltage testing volume is large, the testing time is too long, which has certain drawbacks.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The purpose of this invention is to provide a photovoltaic power generation low voltage ride-through detection device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] An embodiment of this utility model provides a photovoltaic power generation low voltage ride-through detection device, comprising:

[0008] Mounting rails are used to provide an installation platform;

[0009] The mobile stage is provided in two parts. The two mobile stages are slidably mounted on the mounting rail and are symmetrically distributed on the mounting rail. A detection probe is fixedly mounted on each of the two mobile stages.

[0010] An adjusting component is provided on the mounting guide rail and is connected to the moving platform via a transmission. The adjusting component is used to adjust the distance between the two moving platforms.

[0011] The detector is fixedly mounted on the mounting rail, and the detection end of the detector is electrically connected to the two detection probes respectively.

[0012] Furthermore, the cross-section of the mounting rail is in the shape of an inverted "U", and the moving platform is slidably mounted in the groove of the mounting rail.

[0013] Furthermore, the adjusting member includes:

[0014] A synchronous transmission screw is rotatably mounted on the inner wall of the mounting guide rail along the length direction of the mounting guide rail, and the synchronous transmission screw is threadedly connected to the two moving tables.

[0015] A worm gear is provided, which is disposed between the moving table and the synchronous transmission screw. The output end of the worm gear is connected to the synchronous transmission screw. The input end of the worm gear passes through the mounting guide rail and is rotatably mounted on the mounting guide rail.

[0016] An adjustment knob is fixedly installed at the input end of the worm gear.

[0017] Furthermore, the synchronous transmission screw includes a transmission rod and transmission threads disposed at both ends of the transmission rod, and the transmission threads at both ends of the transmission rod rotate in opposite directions.

[0018] Furthermore, the worm gear includes:

[0019] A drive worm gear is rotatably mounted on the mounting guide rail, the drive worm gear passes through the mounting guide rail, and the adjustment knob is fixedly mounted on the outer end of the drive worm gear;

[0020] A transmission worm gear is fixedly mounted on the transmission rod and is meshed with the inner end of the drive worm.

[0021] Furthermore, a detection handle is fixedly provided on the upper surface of the mounting rail.

[0022] Furthermore, there is an installation gap between the moving stage and the inner top surface of the mounting rail, and a detection wire is provided in the installation gap. The detection wire is used to connect the detector and the detection probe.

[0023] Furthermore, the detection probe is configured in the shape of an inverted frustum.

[0024] The above-described solution of this utility model has at least the following beneficial effects:

[0025] This invention utilizes an adjusting component to change the distance between the moving stage and the detection probe, enabling rapid detection of voltage devices of different sizes and specifications, greatly improving the detection efficiency of voltage devices, and featuring simple structure and convenient operation. Attached Figure Description

[0026] Figure 1 A schematic diagram of the overall structure of a photovoltaic power generation low voltage ride-through detection device provided by this utility model;

[0027] Figure 2 A schematic diagram of the installation structure of the regulating component of a photovoltaic power generation low voltage ride-through detection device provided by this utility model;

[0028] Figure 3 A schematic diagram of the synchronous transmission screw structure of a photovoltaic power generation low voltage ride-through detection device provided by this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Mounting rail; 2. Moving stage; 3. Detection handle; 4. Detection probe; 5. Detector; 6. Synchronous transmission screw; 7. Adjustment knob; 8. Worm gear; 9. Drive worm; 10. Transmission worm wheel; 11. Transmission rod; 12. Transmission thread. Detailed Implementation

[0031] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0032] like Figures 1 to 3 As shown, an embodiment of this utility model provides a photovoltaic power generation low voltage ride-through detection device, comprising:

[0033] Mounting guide rail 1 is used to provide an installation platform, and a detection handle 3 is fixedly provided on the upper surface of the mounting guide rail 1.

[0034] There are two mobile stages 2, which are slidably mounted on the mounting rail 1 and symmetrically distributed on the mounting rail 1. Detection probes 4 are fixedly mounted on each of the two mobile stages 2.

[0035] An adjusting component is provided on the mounting guide rail 1 and is connected to the moving platform 2 via a transmission connection. The adjusting component is used to adjust the distance between the two moving platforms 2.

[0036] The detector 5 is fixedly installed on the mounting rail 1, and the detection end of the detector 5 is electrically connected to the two detection probes 4 respectively.

[0037] In this embodiment, the spacing between the electrodes of the voltage device is adjusted using an adjusting member to make the spacing between the moving stage 2 and the detection probe 4 equal to the spacing between the electrodes of the voltage device, thus completing the adjustment of the detection mechanism. At this point, the voltage device can be tested. When testing the voltage device, the detection probe 4 is aligned with and makes contact with the electrodes of the voltage device. The detector 5 then performs electrical performance testing on the two electrodes of the voltage device, and the specific test parameters can be read by the detector 5.

[0038] In one specific embodiment, the mounting rail 1 has an inverted U-shaped cross-section, and the movable stage 2 is slidably mounted within the groove of the mounting rail 1. The movable stage 2 is slidably positioned within the groove of the mounting rail 1 and can slide along the length of the mounting rail 1, thereby facilitating the adjustment of the distance between the movable stage 2 and the detection probe 4. Furthermore, the detection probe 4 is shaped like an inverted frustum, allowing its bottom surface to make large-area contact with the electrodes of the voltage device. Simultaneously, the elongated frustum structure facilitates the insertion of the detection probe 4.

[0039] It should be noted that detector 5 can be a multimeter. For example, when it is necessary to test the internal resistance of a voltage device, the multimeter knob can be turned to the resistance range, and the number displayed on the multimeter is the internal resistance of the voltage device. When it is necessary to test the voltage of a voltage device, the multimeter knob can be turned to the voltage range, and the number displayed on the multimeter is the voltage of the voltage device.

[0040] Furthermore, the adjusting member includes:

[0041] Synchronous transmission screw 6 is rotatably mounted on the inner wall of the mounting guide rail 1 along the length direction of the mounting guide rail 1, and the synchronous transmission screw 6 is threadedly connected to the two moving tables 2.

[0042] A worm gear 8 is disposed between the moving platform 2 and the synchronous transmission screw 6. The output end of the worm gear 8 is connected to the synchronous transmission screw 6. The input end of the worm gear 8 passes through the mounting guide rail 1 and is rotatably mounted on the mounting guide rail 1.

[0043] Adjustment knob 7 is fixedly installed at the input end of the worm gear 8.

[0044] In this embodiment, when it is necessary to adjust the distance between the moving stage 2 and the detection probe 4, the adjustment knob 7 is turned, and the synchronous transmission screw 6 is driven to rotate by the worm gear 8. The moving stage 2, which is threadedly connected to the synchronous transmission screw 6, cannot rotate with the synchronous transmission screw 6 due to the restriction of the mounting guide rail 1. The moving stage 2 can only synchronously close or separate along the length direction of the synchronous transmission screw 6, thereby realizing the adjustment of the distance between the detection probes 4.

[0045] In one specific embodiment, the synchronous transmission screw 6 includes a transmission rod 11 and transmission threads 12 disposed at both ends of the transmission rod 11, with the transmission threads 12 at both ends of the transmission rod 11 rotating in opposite directions. During the rotation of the synchronous transmission screw 6, it can drive the moving stage 2 to synchronously close or separate, thereby reducing or increasing the distance between the moving stages 2, thus realizing the adjustment of the distance between the detection probes 4.

[0046] Additionally, the worm gear 8 includes: a drive worm 9, which is rotatably mounted on the mounting guide rail 1 and passes through the mounting guide rail 1; the adjusting knob 7 is fixedly mounted on the outer end of the drive worm 9; and a transmission worm wheel 10, which is fixedly mounted on the transmission rod 11 and meshes with the inner end of the drive worm 9. After the adjusting knob 7 completes the adjustment of the spacing of the detection probe 4, due to the self-locking effect between the drive worm 9 and the transmission worm wheel 10, the synchronous transmission screw 6 remains stable and stationary, thereby ensuring that the detection probe 4 maintains its current spacing, enabling rapid testing of voltage devices of the same specifications and dimensions.

[0047] Furthermore, there is an installation gap between the moving stage 2 and the inner top surface of the mounting rail 1, and a detection wire is provided in the installation gap. The detection wire is used to connect the detector 5 and the detection probe 4.

[0048] In this embodiment, the two detection probes 4 are connected to the detector 5 by detection wires. The detection wires are set in the installation gap. During the movement of the moving stage 2, the wires can move within the installation gap to always maintain the electrical connection between the detector 5 and the detection probes 4.

[0049] Compared with the prior art, the present invention has at least the following beneficial effects:

[0050] This invention utilizes an adjusting component to change the distance between the moving stage and the detection probe, enabling rapid detection of voltage devices of different sizes and specifications, greatly improving the detection efficiency of voltage devices, and featuring simple structure and convenient operation.

[0051] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A photovoltaic power generation low voltage ride-through detection device, characterized in that: Comprising: An installation guide rail (1) for providing an installation platform; Two mobile platforms (2) which are slidably mounted on the installation guide rail (1), and the two mobile platforms (2) are symmetrically distributed on the installation guide rail (1), and detection probes (4) are fixedly mounted on both of the two mobile platforms (2); An adjusting member which is disposed on the installation guide rail (1) and is in transmission connection with the mobile platform (2), and the adjusting member is used for adjusting the distance between the two mobile platforms (2); A detector (5) which is fixedly mounted on the installation guide rail (1), and the detection ends of the detector (5) are electrically connected to the two detection probes (4) respectively.

2. The photovoltaic power generation low voltage ride-through detection device according to claim 1, characterized in that: The cross-section of the installation guide rail (1) is in an inverted "U" shape, and the mobile platform (2) is slidably mounted in the groove of the installation guide rail (1).

3. The photovoltaic power generation low voltage ride-through detection device according to claim 1, characterized in that: The adjusting member includes: A synchronous transmission screw rod (6) which is rotationally mounted on the inner wall of the installation guide rail (1) along the length direction of the installation guide rail (1), and the synchronous transmission screw rod (6) is in threaded connection with the two mobile platforms (2); A worm and worm gear (8) which is disposed between the mobile platform (2) and the synchronous transmission screw rod (6), the output end of the worm and worm gear (8) is in transmission connection with the synchronous transmission screw rod (6), and the input end of the worm and worm gear (8) penetrates through the installation guide rail (1) and is rotationally mounted on the installation guide rail (1); An adjusting knob (7) which is fixedly mounted on the input end of the worm and worm gear (8).

4. The photovoltaic power generation low voltage ride-through detection device according to claim 3, characterized in that: The synchronous transmission screw rod (6) includes a transmission rod (11) and transmission threads (12) provided at both ends of the transmission rod (11), and the transmission threads (12) at both ends of the transmission rod (11) have opposite helix directions.

5. A photovoltaic power generation low voltage ride-through detection device according to claim 4, characterized in that: The worm and worm gear (8) includes: A driving worm (9) which is rotationally mounted on the installation guide rail (1), the driving worm (9) penetrates through the installation guide rail (1), and the adjusting knob (7) is fixedly mounted on the outer end of the driving worm (9); A transmission worm wheel (10) which is fixedly mounted on the transmission rod (11), and the transmission worm wheel (10) is in meshing connection with the inner end of the driving worm (9).

6. The photovoltaic power generation low voltage ride-through detection device according to claim 1, characterized in that: A detection handle (3) is fixedly provided on the upper surface of the installation guide rail (1).

7. The photovoltaic power generation low voltage ride-through detection device according to claim 1, characterized in that: There is an installation gap between the mobile platform (2) and the inner top surface of the installation guide rail (1), and a detection wire is disposed in the installation gap, and the detection wire is used for connecting the detector (5) and the detection probe (4).

8. A photovoltaic power generation low voltage ride-through detection device according to claim 5, characterized in that: The detection probe (4) is provided in an inverted frustum shape.

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