Voltage ride-through comprehensive simulation device

Abstract

The utility model discloses a voltage ride through comprehensive simulation device, which comprises a mobile base and a power analyzer, the power analyzer is arranged on the upper part of the mobile base, the power analyzer is detachably connected with the mobile base, a workbench is arranged on the mobile base, the workbench can be adjusted back and forth relative to the mobile base, and the power analyzer is detachably connected with the mobile base. And a drawing box is mounted in the workbench. The movable base is installed at the bottom of the power analyzer and can assist the power analyzer to move, so that the power analyzer can be flexibly used conveniently, the physical strength of workers is saved, meanwhile, the workbench is installed on the base and can be pulled, the workers can place and operate a computer in a working site conveniently, and the working efficiency is improved. And a worker can be conveniently assisted to carry out a low-voltage ride-through test. A grip is installed on the upper surface of the power analyzer, and the grip is detachably connected with the power analyzer, so that a worker can conveniently lift the power analyzer to move.

Description

Technical Field

[0001] The utility model relates to the technical field of voltage ride-through simulation, in particular to a voltage ride-through comprehensive simulation device. Background Art

[0002] Voltage ride-through is divided into high voltage ride-through and low voltage ride-through. The low voltage ride-through test is to test whether the inverter can operate without disconnecting from the grid and provide reactive current to support the grid after the grid voltage drops. Therefore, some wind farms or photovoltaic farms need to perform low voltage ride-through simulation to ensure the stability of the entire grid.

[0003] The Chinese patent authorization announcement number CN216248269U discloses a low voltage ride-through capability test device for a high voltage inverter, which solves the problem that the prior art cannot test the low voltage ride-through capability of a high voltage inverter; the fault voltage output end of the voltage fault simulator is connected in parallel with any group of three-phase low voltage windings of the phase-shifting transformer, and the three-phase high voltage winding of the phase-shifting transformer is connected to the high voltage AC power supply through the high voltage power input switch K6; the output end of the three-phase low voltage winding of the phase-shifting transformer is connected to the input end of the power module, and the output end of the power module is connected to the load motor through the load output control switch K7, and the controller is connected to the control end of the power module; the voltage feedback input end and the current feedback input end of the voltage fault simulator are both connected between the power module and the load output control switch K7. The patent solution has a simple structure, low cost, and is easy to operate on site.

[0004] The above patent provides a low voltage ride-through test device. This low voltage ride-through test requires the use of a power analyzer in conjunction with the low voltage ride-through software on a computer to perform a low voltage ride-through test on the corresponding inverter. The power analyzer is one of the main devices for performing a low voltage ride-through test on the inverter. When performing a low voltage ride-through test on the inverter, it is necessary to go to a designated wind farm or photovoltaic farm, which requires the staff to carry the computer and the power analyzer back and forth. However, the existing power analyzer is not convenient to move, and moving the power analyzer is physically demanding. There is also no suitable work surface for the staff to operate when arriving at the test site, which does not allow the staff to efficiently perform the low voltage ride-through test. Utility Model Content

[0005] The purpose of the utility model is to provide a voltage ride-through comprehensive simulation device, aiming to improve the problem that a power analyzer used for a low voltage ride-through test is inconvenient to move, and there is no suitable work surface for staff to operate when arriving at the test site, and the staff cannot efficiently perform the low voltage ride-through test.

[0006] The utility model is achieved in this way:

[0007] A voltage ride-through comprehensive simulation device comprises a mobile base and a power analyzer, wherein the power analyzer is mounted on the upper portion of the mobile base and the power analyzer and the mobile base are detachably connected, a workbench is mounted on the mobile base, the workbench can be adjusted forward and backward relative to the mobile base, and a pull-out box is mounted inside the workbench.

[0008] Preferably, slide grooves are symmetrically provided on both sides of the movable base, and universal wheels are provided at the corners of the movable base, diagonal support rods are provided on both sides of the movable base tilted backward, transfer grooves are provided on the inner sides of the diagonal support rods, the top of the transfer grooves are opened, and a clamping knob is provided on the outer side of the diagonal support rod aligned with the transfer groove, and a grip rod is provided on the top between the two diagonal support rods.

[0009] Preferably, the power analyzer is provided with a control panel and a display screen, the bottom corners of the power analyzer are provided with supporting feet, adapter columns are symmetrically provided on both sides of the power analyzer, the adapter columns are cylindrical, and the adapter columns are engaged in the inner side of the adapter slot, the power analyzer is provided with wires, and the wire points are not provided with power plugs.

[0010] Preferably, sliding rods are provided on both sides of the bottom surface of the workbench, the cross-section of the sliding rods is a T-shaped structure, and the sliding rods are engaged in the inner side of the sliding groove, a pull-out groove is provided on the inner side of the workbench, and the front end of the pull-out groove is open, and a pull opening is provided at the front end of the workbench.

[0011] Preferably, the width and height of the pull-out box match the width and height of the pull-out slot, the pull-out box is installed inside the pull-out slot, and a handle is provided in the middle of one side of the pull-out box facing outward.

[0012] Preferably, the power analyzer is provided with a thread groove, and the thread groove is threadedly connected to a handle.

[0013] Preferably, the handle is in a U-shaped structure, and a bottom plate is provided at the bottom of the handle, a stud is provided at the bottom of the bottom plate, and the stud is threadedly connected to the thread groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model is provided with a mobile base, which can assist the movement of the power analyzer, thereby facilitating the flexible use of the power analyzer and saving the physical strength of the staff. At the same time, a workbench is installed on the base, which can be pulled out, so that the staff can place and operate the computer at the workplace and assist the staff in conducting low voltage ride-through tests.

[0016] 2. A handle is installed on the upper surface of the power analyzer of the utility model, and the handle is detachably connected to the power analyzer, so that it is convenient for the staff to lift the power analyzer and move it. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the mobile base of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the utility model power analyzer;

[0020] Figure 4 It is a structural schematic diagram of the workbench of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the pull-out box of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the handle of the utility model.

[0023] In the figure: 1. Mobile base; 11. Slide; 12. Universal wheel; 13. Diagonal support rod; 14. Adapter slot; 15. Clamping knob; 16. Grip; 2. Power analyzer; 21. Control panel; 22. Display screen; 23. Support foot; 24. Adapter column; 25. Threaded groove; 26. Wire; 27. Power plug; 3. Workbench; 31. Pull-out slot; 32. Slide rod; 33. Pull-out mouth; 4. Pull-out box; 41. Handle; 5. Grip; 51. Bottom plate; 52. Stud. DETAILED DESCRIPTION

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0026] Example 1

[0027] like Figure 1As shown, a voltage ride-through comprehensive simulation device includes a mobile base 1 and a power analyzer 2. The power analyzer 2 is installed on the upper part of the mobile base 1, and the power analyzer 2 and the mobile base 1 are detachably connected. The mobile base 1 cooperates with the power analyzer 2 to facilitate the carrying of the power analyzer 2 and the flexible use of the power analyzer 2. A workbench 3 is installed on the mobile base 1, and the workbench 3 can be adjusted forward and backward relative to the mobile base 1. This structure is convenient for pulling out the workbench 3, so that it is convenient for the staff to place the computer on the workbench 3 for operation, and it is convenient for the computer to cooperate with the power analyzer 2. A pull-out box 4 is installed inside the workbench 3, and the pull-out box 4 is convenient for storing some commonly used tools or computers.

[0028] like Figure 2 As shown, the mobile base 1 is symmetrically provided with slide grooves 11 on both sides, and the slide grooves 11 are convenient for installing the pull-out box 4 and for the flexible use of the pull-out box 4. Universal wheels 12 are provided at the corners of the mobile base 1, and the universal wheels 12 are convenient for the flexible movement and use of the entire mobile base 1. The mobile base 1 is tilted backward on both sides and provided with diagonal braces 13, and the inner side of the diagonal braces 13 is provided with a transfer groove 14, and the top of the transfer groove 14 is open. The diagonal braces 13 cooperate with the transfer groove 14 to facilitate the support of the power analyzer 2, the adjustment of the inclination angle of the power analyzer 2, and the use of the power analyzer 2. A clamping knob 15 is provided on the outer side of the diagonal brace 13 aligned with the transfer groove 14, and the clamping knob 15 is convenient to press against the power analyzer 2, so as to fix the inclination angle of the power analyzer 2. A gripping rod 16 is provided at the top between the two diagonal braces 13, and the diagonal brace 13 cooperates with the gripping rod 16 to facilitate the movement of the entire diagonal brace 13 and the use of the diagonal brace 13.

[0029] like Figure 3 As shown, the power analyzer 2 is provided with a control panel 21 and a display screen 22. The control panel 21 is convenient for controlling the power analyzer 2, and the display screen 22 is used to display waveforms, which is convenient for the staff to observe the waveforms. Support feet 23 are provided at the bottom corners of the power analyzer 2. The support feet 23 are convenient for the power analyzer 2 to be placed stably on the bottom surface after it is separated from the mobile base 1. Adapter posts 24 are symmetrically provided on both sides of the power analyzer 2. The adapter posts 24 are cylindrical, and the adapter posts 24 are engaged with the inner side of the adapter slot 14. This structure is convenient for the power analyzer 2 to rotate and adjust. The power analyzer 2 is provided with a wire 26, and the wire 26 is not provided with a power plug 27; the wire 26 and the power plug 27 are convenient for the power analyzer 2 to be powered on and used.

[0030] like Figure 4As shown, slide bars 32 are provided on both sides of the bottom surface of the workbench 3, and the cross section of the slide bars 32 is a T-shaped structure. This structure facilitates the sliding connection between the workbench 3 and the upper surface of the mobile base 1, and facilitates the pulling out and pushing back of the workbench 3. The slide bars 32 are engaged with the inner side of the slide groove 11, and this structure facilitates the stable connection between the workbench 3 and the mobile base 1. A drawing groove 31 is provided on the inner side of the workbench 3, and the front end of the drawing groove 31 is open, and the drawing groove 31 is convenient for installing the drawing box 4. A pull-out opening 33 is provided at the front end of the workbench 3, and the pull-out opening 33 is convenient for pulling the workbench 3.

[0031] like Figure 5 As shown, the width and height of the pull-out box 4 match the width and height of the pull-out slot 31. This structure facilitates the pull-out box 4 to be stabilized inside the pull-out slot 31. The pull-out box 4 is installed inside the pull-out slot 31, and a handle 41 is provided in the middle of one side of the pull-out box 4 facing outward. The handle 41 is convenient for pulling the pull-out box 4 and facilitating the use of the pull-out box 4.

[0032] Working principle: When in use, pull out the workbench 3 according to the use requirements, and then place the computer on the workbench 3, so that the computer and the power analyzer 2 are connected, and then the power analyzer 2 is connected to the corresponding inverter, and then the low voltage ride-through test software on the computer can be used to perform a low voltage ride-through test on the inverter. And the inclination of the power analyzer 2 can also be adjusted according to the use requirements during operation. Compared with the prior art, the power analyzer 2 of the present application is equipped with a mobile base 1 at the bottom, and the mobile base 1 can assist the movement of the power analyzer 2, thereby facilitating the flexible use of the power analyzer 2 and saving the physical strength of the staff. At the same time, a workbench 3 is installed on the base, and the workbench 3 can be pulled out, which is convenient for the staff to place and operate the computer at the workplace, and is convenient for assisting the staff to perform low voltage ride-through tests.

[0033] Example 2

[0034] like Figure 1 As shown, a voltage ride-through comprehensive simulation device includes a mobile base 1 and a power analyzer 2. The power analyzer 2 is installed on the upper part of the mobile base 1, and the power analyzer 2 and the mobile base 1 are detachably connected. The mobile base 1 cooperates with the power analyzer 2 to facilitate the carrying of the power analyzer 2 and the flexible use of the power analyzer 2. A workbench 3 is installed on the mobile base 1, and the workbench 3 can be adjusted forward and backward relative to the mobile base 1. This structure is convenient for pulling out the workbench 3, so that it is convenient for the staff to place the computer on the workbench 3 for operation, and it is convenient for the computer to cooperate with the power analyzer 2. A pull-out box 4 is installed inside the workbench 3, and the pull-out box 4 is convenient for storing some commonly used tools or computers.

[0035] like Figure 2As shown, the mobile base 1 is symmetrically provided with slide grooves 11 on both sides, and the slide grooves 11 are convenient for installing the pull-out box 4 and for the flexible use of the pull-out box 4. Universal wheels 12 are provided at the corners of the mobile base 1, and the universal wheels 12 are convenient for the flexible movement and use of the entire mobile base 1. The mobile base 1 is tilted backward on both sides and provided with diagonal braces 13, and the inner side of the diagonal braces 13 is provided with a transfer groove 14, and the top of the transfer groove 14 is open. The diagonal braces 13 cooperate with the transfer groove 14 to facilitate the support of the power analyzer 2, the adjustment of the inclination angle of the power analyzer 2, and the use of the power analyzer 2. A clamping knob 15 is provided on the outer side of the diagonal brace 13 aligned with the transfer groove 14, and the clamping knob 15 is convenient to press against the power analyzer 2, so as to fix the inclination angle of the power analyzer 2. A gripping rod 16 is provided at the top between the two diagonal braces 13, and the diagonal brace 13 cooperates with the gripping rod 16 to facilitate the movement of the entire diagonal brace 13 and the use of the diagonal brace 13.

[0036] like Figure 3 As shown, the power analyzer 2 is provided with a control panel 21 and a display screen 22. The control panel 21 is convenient for controlling the power analyzer 2, and the display screen 22 is used to display waveforms, which is convenient for the staff to observe the waveforms. Support feet 23 are provided at the bottom corners of the power analyzer 2. The support feet 23 are convenient for the power analyzer 2 to be placed stably on the bottom surface after it is separated from the mobile base 1. Adapter posts 24 are symmetrically provided on both sides of the power analyzer 2. The adapter posts 24 are cylindrical, and the adapter posts 24 are engaged with the inner side of the adapter slot 14. This structure is convenient for the power analyzer 2 to rotate and adjust. The power analyzer 2 is provided with a wire 26, and the wire 26 is not provided with a power plug 27; the wire 26 and the power plug 27 are convenient for the power analyzer 2 to be powered on and used.

[0037] like Figure 4 As shown, slide bars 32 are provided on both sides of the bottom surface of the workbench 3, and the cross section of the slide bars 32 is a T-shaped structure. This structure facilitates the sliding connection between the workbench 3 and the upper surface of the mobile base 1, and facilitates the pulling out and pushing back of the workbench 3. The slide bars 32 are engaged with the inner side of the slide groove 11, and this structure facilitates the stable connection between the workbench 3 and the mobile base 1. A drawing groove 31 is provided on the inner side of the workbench 3, and the front end of the drawing groove 31 is open, and the drawing groove 31 is convenient for installing the drawing box 4. A pull-out opening 33 is provided at the front end of the workbench 3, and the pull-out opening 33 is convenient for pulling the workbench 3.

[0038] like Figure 5 As shown, the width and height of the pull-out box 4 match the width and height of the pull-out slot 31. This structure facilitates the pull-out box 4 to be stabilized inside the pull-out slot 31. The pull-out box 4 is installed inside the pull-out slot 31, and a handle 41 is provided in the middle of one side of the pull-out box 4 facing outward. The handle 41 is convenient for pulling the pull-out box 4 and facilitating the use of the pull-out box 4.

[0039] like Figure 1 , Figure 3 and Figure 6 As shown, the power analyzer 2 is provided with a thread groove 25, and the thread groove 25 is threadedly connected with the handle 5; the thread groove 25 is convenient for installing the handle 5, so as to facilitate the disassembly and use of the handle 5. The handle 5 is a U-shaped structure, and a bottom plate 51 is provided at the bottom of the handle 5, and a stud 52 is provided at the bottom of the bottom plate 51, and the stud 52 is threadedly connected with the thread groove 25; this structure is convenient for holding the handle 5, and also convenient for disassembly and assembly of the handle 5 according to use requirements.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A voltage ride-through comprehensive simulation device, comprising a mobile base (1) and a power analyzer (2), characterized in that: The power analyzer (2) is mounted on the upper part of the mobile base (1), and the power analyzer (2) and the mobile base (1) are detachably connected. A workbench (3) is mounted on the mobile base (1), and the workbench (3) can be adjusted forward and backward relative to the mobile base (1). A pull-out box (4) is mounted inside the workbench (3).

2. A voltage ride through comprehensive simulation device according to claim 1, characterized in that: The movable base (1) is symmetrically provided with slide grooves (11) on both sides, and the movable base (1) is provided with universal wheels (12) at the corners. The movable base (1) is provided with diagonal support rods (13) on both sides tilted backward. The inner side of the diagonal support rod (13) is provided with a transfer groove (14). The top of the transfer groove (14) is open. The outer side of the diagonal support rod (13) is aligned with the transfer groove (14) and a clamping knob (15) is provided. A gripping rod (16) is provided at the top between the two diagonal support rods (13).

3. A voltage ride through comprehensive simulation device according to claim 2, characterized in that: The power analyzer (2) is provided with a control panel (21) and a display screen (22); the bottom corners of the power analyzer (2) are provided with supporting feet (23); the two sides of the power analyzer (2) are symmetrically provided with adapter posts (24); the adapter posts (24) are cylindrical and are engaged with the inner side of the adapter slot (14); the power analyzer (2) is provided with a wire (26); and the wire (26) is not provided with an electrical plug (27).

4. A voltage ride through comprehensive simulation device according to claim 2, characterized in that: Slide bars (32) are provided on both sides of the bottom surface of the workbench (3), the cross section of the slide bars (32) is a T-shaped structure, and the slide bars (32) are engaged with the inner side of the slide groove (11), a drawing groove (31) is provided on the inner side of the workbench (3), and the front end of the drawing groove (31) is open, and a drawing opening (33) is provided at the front end of the workbench (3).

5. A voltage ride through comprehensive simulation device according to claim 4, characterized in that: The width and height of the pull-out box (4) match the width and height of the pull-out slot (31); the pull-out box (4) is installed inside the pull-out slot (31), and a handle (41) is provided in the middle of a side of the pull-out box (4) facing outward.

6. A voltage ride through comprehensive simulation device according to any one of claims 1 to 5, characterized in that: The power analyzer (2) is provided with a thread groove (25), and the thread groove (25) is threadedly connected to a handle (5).

7. A voltage ride through comprehensive simulation device according to claim 6, characterized in that: The handle (5) is of a U-shaped structure, and a bottom plate (51) is provided at the bottom of the handle (5), a stud (52) is provided at the bottom of the bottom plate (51), and the stud (52) is threadedly connected to the thread groove (25).

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