Micro-grid system stability detection device

Abstract

The utility model discloses a micro-grid system stability detection device which comprises a connecting device and a detection assembly, the two ends of a connecting cross rod are connected with one ends of two connecting vertical rods respectively, a contact groove is formed in the middle of the connecting cross rod, two first contacts are arranged in the contact groove, and the first contacts are connected with a wire in the connecting cross rod; second contacts are arranged on the two side faces of the connecting block respectively, a voltage sensor is arranged in the shell and electrically connected with the second contacts, the side edge of the connecting transverse rod is connected with a containing table, the rear end of the shell is rotationally connected with the containing table through a rotating shaft, the bottom face of the shell is connected with one end of a spring, and the other end of the spring is connected with the upper end face of the containing table. When the shell is pressed down to compress the spring, the two second contacts are in contact connection with the corresponding first contacts, so that the voltage sensor is connected with the micro-grid circuit to be detected in parallel, voltage detection of the micro-grid circuit is achieved, and the stability of the micro-grid system is judged through voltage detection data.

Description

Technical Field

[0001] The utility model belongs to the technical field of power grid equipment, and in particular relates to a microgrid system stability detection device. Background Art

[0002] A microgrid system refers to a small power generation and distribution system composed of distributed power sources, energy storage devices, electrical equipment, energy conversion devices, and control and protection equipment. It can be connected to the main power grid or operate independently. As a separately controllable unit, the microgrid can effectively improve the utilization rate of distributed power sources, improve power supply quality, reduce line losses, and enhance power supply reliability.

[0003] Voltage is a key indicator for the stable operation of a microgrid. Voltage that is too high or too low can cause equipment damage, system instability, or even shutdown. Voltage detection can optimize the control strategy of the microgrid system, such as adjusting the output power of distributed power sources and controlling the charging and discharging of energy storage systems, thereby improving the system's operating efficiency and stability. Utility Model Content

[0004] The present application proposes a microgrid system stability detection device for detecting the voltage stability of a microgrid circuit to ensure the stable operation of the microgrid system.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A microgrid system stability detection device includes a connecting device and a detection assembly, wherein the connecting device includes a connecting vertical rod and a connecting horizontal rod, wherein both ends of the connecting horizontal rod are respectively connected to one end of two connecting vertical rods, and the other end of the connecting vertical rod is provided with a clamp, and a wire connected to the clamp is provided in the connecting vertical rod. A contact slot is defined in the middle of the connecting horizontal rod, and two first contacts are provided in the contact slot, and the two first contacts are respectively connected to the wires in the connecting horizontal rod, and the wires in the connecting horizontal rod are connected to the wires in the connecting vertical rod. The detection assembly includes a housing, a connecting block is provided at the front end of the housing, and second contacts are provided on both sides of the connecting block. A voltage sensor is provided in the housing, and an input end of the voltage sensor is electrically connected to the second contact. An output end of the voltage sensor is connected to a processor via a data line, and the processor is connected to a display screen on the upper end surface of the housing via a data line. A placement table is connected to the side of the connecting horizontal rod, and the rear end of the housing is rotatably connected to the placement table via a rotating shaft. The bottom surface of the housing is connected to one end of a spring, and the other end of the spring is connected to the upper end surface of the placement table.

[0007] In one embodiment of the present application, a limit plate is provided on the upper end surface of the placement table, and the limit plate is provided on both sides of the shell.

[0008] In one embodiment of the present application, a socket is provided at the front end of the connection block, and a through hole is provided on the outer wall of the contact groove.

[0009] In one embodiment of the present application, the upper surface of the placement table is connected to the bottom surface of the shell through a plurality of springs.

[0010] In one embodiment of the present application, outer walls of the connecting vertical rods and the connecting horizontal rods are covered with an insulating shell.

[0011] In one embodiment of the present application, the connecting vertical rod and the connecting horizontal rod are detachably connected.

[0012] In one embodiment of the present application, a fixing block is connected to the side wall of the connecting vertical rod, and a mounting hole is formed on the fixing block.

[0013] In summary, the technical solution proposed in this application includes the following beneficial technical effects: in the initial state, the spring supports the shell, and the first contact and the second contact are in an open-circuit state. When the shell is pressed down to compress the spring, the two second contacts are respectively connected with the corresponding first contacts, so that the voltage sensor is connected in parallel with the microgrid circuit to be detected, so as to realize voltage detection of the microgrid circuit, and judge the stability of the microgrid system through the voltage detection data. By detecting the voltage at various locations in the microgrid system, abnormal fluctuations can be discovered in time, and corresponding control measures can be taken to ensure the safe and stable operation of the microgrid system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a microgrid system stability detection device provided in one embodiment of the present application;

[0016] Figure 2 A schematic diagram of the three-dimensional structure of a microgrid system stability detection device provided in one embodiment of the present application;

[0017] Figure 3 A schematic diagram of the fixed block assembly structure of a microgrid system stability detection device provided in one embodiment of the present application;

[0018] Figure 4 A circuit diagram of a microgrid system stability detection device provided in one embodiment of the present application;

[0019] In the figure: connecting device 1, connecting vertical rod 11, connecting horizontal rod 12, clamping head 111, fixing block 112, mounting hole 113;

[0020] Contact slot-2, first contact point-21;

[0021] Housing 3, connection block 31, voltage sensor 32, processor 33, display 34, second contact 311;

[0022] Placement table-4, rotating shaft-41, limiting plate-42;

[0023] Spring-5;

[0024] Jack-61, through hole-62. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application are clearly and completely described below. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts also fall within the scope of protection of this application.

[0026] It should be noted that in the description of this application, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0027] The terms "mounted," "connected," and "connected" in this application should be interpreted broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical connections; direct connections or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0028] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0029] This embodiment provides a microgrid system stability detection device, see Figures 1-4 As shown, it includes a connecting device 1 and a detection component, the connecting device 1 includes a connecting vertical rod 11 and a connecting cross rod 12, the two ends of the connecting cross rod 12 are respectively connected to one end of the two connecting vertical rods 11, the other end of the connecting vertical rod 11 is provided with a clamp 111, and a wire connected to the clamp 111 is provided in the connecting vertical rod 11, a contact groove 2 is opened in the middle of the connecting cross rod 12, two first contacts 21 are provided in the contact groove 2, the two first contacts 21 are respectively connected to the wires in the connecting cross rod 12, and the wires in the connecting cross rod 12 are connected to the wires in the connecting vertical rod 11, the detection component includes a housing 3, A connecting block 31 is provided at the front end of the shell 3, and second contacts 311 are respectively provided on both sides of the connecting block 31. A voltage sensor 32 is provided in the shell 3, and the input end of the voltage sensor 32 is electrically connected to the second contact 311. The output end of the voltage sensor 32 is connected to the processor 33 through a data line, and the processor 33 is connected to the display screen 34 on the upper end surface of the shell 3 through a data line. The side of the connecting cross bar 12 is connected to the placing table 4, and the rear end of the shell 3 is rotatably connected to the placing table 4 through a rotating shaft 41. The bottom surface of the shell 3 is connected to one end of the spring 5, and the other end of the spring 5 is connected to the upper end surface of the placing table 4.

[0030] In the above embodiment, the connecting device 1 includes a connecting vertical rod 11 and a connecting horizontal rod 12. The two ends of the connecting horizontal rod 12 are respectively connected to one end of the two connecting vertical rods 11, and a wire connected to a clamp 111 is provided in the connecting vertical rod 11. The wire in the connecting horizontal rod 12 is connected to the wire in the connecting vertical rod 11. A contact slot 2 is provided in the middle of the connecting horizontal rod 12. Two first contacts 21 are provided in the contact slot 2. The first contacts 21 are connected to the wire in the connecting horizontal rod 12. The wires in the two connecting horizontal rods 12 are respectively connected to the wire in the connecting vertical rod 11. In actual use, the two clamps 111 are respectively clamped on both sides of the circuit of the device under test or the circuit element under test. Compared with connecting with the handheld connection end, clamping and connecting the circuit by the clamps 111 improves stability and avoids contact between the human body and the electrical components. In the initial state, the two second contacts 311 are in an open circuit state. Furthermore, the detection component includes a housing 3, a connection block 31 is provided at the front end of the housing 3, and second contacts 311 are provided on both sides of the connection block 31. The two second contacts 311 are respectively used to connect to the two first contacts 21. A voltage sensor 32 is provided in the housing 3, and the input end of the voltage sensor 32 is electrically connected to the second contacts 311, and is used to detect the voltage between the two second contacts 311 and convert the voltage into a voltage value. The optional voltage sensor 32 is a voltmeter, and the output end of the voltage sensor 32 is connected to the processor 33 via a data line. The processor 33 is used to convert the voltage value into a display signal and transmit it to the display screen 34 on the upper end surface of the housing 3. The specific display of the voltage value or conversion into an image can more intuitively observe the voltage value, and the voltage value is stored and recorded. Optionally, the processor 33 is a microprocessor MCU, and the side of the connecting cross bar 12 is connected to a placement table 4. The rear end of the shell 3 is rotatably connected to the placement table 4 through a rotating shaft 41. The bottom surface of the shell 3 is connected to one end of the spring 5, and the other end of the spring 5 is connected to the upper end surface of the placement table 4. In the initial state, the spring 5 supports the shell 3, and the first contact 21 and the second contact 311 are in an open circuit state. When the shell 3 is pressed down to compress the spring 5, the two second contacts 311 are respectively contacted and connected with the corresponding first contacts 21, so that the voltage sensor 32 is connected in parallel with the microgrid circuit to be detected, so as to realize voltage detection of the microgrid circuit, and judge the stability of the microgrid system by the voltage detection data. By detecting the voltage at various locations in the microgrid system, abnormal fluctuations can be discovered in time, and corresponding control measures can be taken to ensure the safe and stable operation of the microgrid system. In addition, pressing down the shell 3 can test the first contact 21 and the second contact 311. If the display screen 34 shows an abnormality, the shell 3 can be released, and the spring 5 can quickly lift the shell 3 to separate the first contact 21 and the second contact 311, preventing the detection components in the shell 3 from being damaged by abnormal voltage, thereby protecting the detection components in the shell 3.

[0031] In one embodiment of the present application, see Figure 1 As shown, a limit plate 42 is provided on the upper end surface of the placement platform 4 , and the limit plates 42 are provided on both sides of the housing 3 .

[0032] In the above embodiment, the limiting plates 42 are arranged on both sides of the housing 3 to limit the housing 3, preventing the housing 3 from deviating during rotation, so that the connecting block 31 cannot normally enter the contact groove 2, which is beneficial to improving the stability of the detection device.

[0033] In one embodiment of the present application, see Figure 1 As shown, a plug hole 61 is provided at the front end of the connection block 31 , and a through hole 62 is opened on the outer wall of the contact groove 2 .

[0034] In the above embodiment, after the connection block 31 at the front end of the housing 3 is pressed into the contact slot 2, and the display screen 34 displays normal values, the pin can be inserted through the through hole 62 on the outer wall of the contact slot 2 into the through hole 62 at the front end of the connection block 31 to fix the connection block 31 in the contact slot 2, so that the first contact 21 contacts the second contact 311, and the voltage in the microgrid is continuously detected to monitor the stability of the microgrid system during operation.

[0035] In one embodiment of the present application, see Figure 2 As shown, the upper end surface of the placement platform 4 is connected to the bottom surface of the housing 3 through a plurality of springs 5.

[0036] In the above embodiment, the connection points between the shell 3 and the placement table 4 are increased by connecting multiple springs 5. On the one hand, the stability of the connection between the shell 3 and the placement table 4 is increased. On the other hand, compared with the support of a single spring 5, the support of multiple springs 5 ​​makes the supporting elastic force of the shell 3 more uniform, making the downward and upward movements of the shell 3 smoother.

[0037] In one embodiment of the present application, outer walls of the connecting vertical rods 11 and the connecting horizontal rods 12 are covered with an insulating shell.

[0038] In the above embodiment, the process of voltage detection on the microgrid system is live operation, and an insulating layer is set on the outer wall of the connecting vertical rod 11 and the connecting horizontal rod 12 to improve the insulation of the outside of the connecting vertical rod 11 and the connecting horizontal rod 12 to prevent leakage and ensure the safety of the operator.

[0039] In one embodiment of the present application, the connecting vertical rod 11 and the connecting horizontal rod 12 are detachably connected.

[0040] In the above embodiment, the connecting vertical rod 11 and the connecting horizontal rod 12 are detachably connected, and the connecting vertical rod 11 of different shapes and lengths can be replaced according to the actual conditions of different detection circuits to adapt to different measurement circuits and improve the adaptability of the detection device.

[0041] In one embodiment of the present application, see Figure 3 As shown, a fixing block 112 is connected to the side wall of the connecting vertical rod 11 , and a mounting hole 113 is formed on the fixing block 112 .

[0042] In the above embodiment, some microgrid circuits are arranged in a direction perpendicular to the bottom surface, so that the detection device cannot be stably supported and fixed during detection. At this time, the connecting vertical rod 11 can be hung through the mounting hole 113 on the fixing block 112 or a fixing pin can be inserted to fix the detection device on the wall or column, so as to improve the flexibility of the detection device in detecting circuits in different positions.

[0043] During actual use of the present application, the two clamps 111 are respectively applied to the circuit of the device under test. In the initial state, the two second contacts 311 are in an open circuit state. The detection component includes a housing 3, a connection block 31 is provided at the front end of the housing 3, and second contacts 311 are provided on both sides of the connection block 31. The two second contacts 311 are respectively used to connect to the two first contacts 21. A voltage sensor 32 is provided in the housing 3, and the input end of the voltage sensor 32 is electrically connected to the second contacts 311 for detecting the voltage between the two second contacts 311 and converting the voltage into a voltage value. The output end of the voltage sensor 32 is connected to the processor 33 via a data line. The processor 33 is used to convert the voltage value into a display signal and transmit it to the display screen 34 on the upper end surface of the housing 3. The specific display or conversion of the voltage value into an image can make the voltage value more intuitive to observe. The historical voltage value is stored and recorded and displayed on the display screen 34. The stability of the microgrid system is judged based on the voltage detection data. By detecting the voltage at various locations in the microgrid system, abnormal fluctuations can be discovered in a timely manner, and corresponding control measures can be taken to ensure the safe and stable operation of the microgrid system.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A microgrid system stability detection device, characterized in that: The invention comprises a connecting device (1) and a detection component, wherein the connecting device (1) comprises a connecting vertical rod (11) and a connecting horizontal rod (12), wherein two ends of the connecting horizontal rod (12) are respectively connected to one end of the two connecting vertical rods (11), and the other end of the connecting vertical rod (11) is provided with a clamp (111), and a wire connected to the clamp (111) is provided in the connecting vertical rod (11), and a contact groove (2) is provided in the middle of the connecting horizontal rod (12), and two first contacts (21) are provided in the contact groove (2), and the two first contacts (21) are respectively connected to the wire in the connecting horizontal rod (12), and the wire in the connecting horizontal rod (12) is connected to the wire in the connecting vertical rod (11), and the detection component comprises a shell (3), and the shell ( 3) A connecting block (31) is provided at the front end, and second contacts (311) are provided on both sides of the connecting block (31), a voltage sensor (32) is provided in the housing (3), an input end of the voltage sensor (32) is electrically connected to the second contact (311), an output end of the voltage sensor (32) is connected to a processor (33) via a data line, the processor (33) is connected to a display screen (34) on the upper end face of the housing (3) via a data line, a side of the connecting cross bar (12) is connected to a placement table (4), a rear end of the housing (3) is rotatably connected to the placement table (4) via a rotating shaft (41), a bottom surface of the housing (3) is connected to one end of a spring (5), and the other end of the spring (5) is connected to the upper end face of the placement table (4).

2. The microgrid system stability detection device according to claim 1, characterized in that: A limit plate (42) is provided on the upper end surface of the placement platform (4), and the limit plate (42) is provided on both sides of the housing (3).

3. The microgrid system stability detection device according to claim 1, characterized in that: The front end of the connection block (31) is provided with a socket (61), and the outer wall of the contact groove (2) is provided with a through hole (62).

4. The microgrid system stability detection device according to claim 1, characterized in that: The upper end surface of the placement platform (4) is connected to the bottom surface of the housing (3) via a plurality of springs (5).

5. The microgrid system stability detection device according to claim 1, characterized in that: The outer walls of the connecting vertical rod (11) and the connecting horizontal rod (12) are provided with an insulating shell.

6. The microgrid system stability detection device according to claim 5, characterized in that: The connecting vertical rod (11) and the connecting horizontal rod (12) are detachably connected.

7. The microgrid system stability detection device according to any one of claims 1 to 6, characterized in that: The side wall of the connecting vertical rod (11) is connected to a fixing block (112), and a mounting hole (113) is provided on the fixing block (112).

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