Grid-connected high-voltage cabinet communication device
By introducing a multi-channel interface converter into the grid-connected high-voltage switchgear, the problem of limited applicability caused by different communication channels is solved, achieving efficient data transmission and equipment management, and improving the stability and security of the grid-connected switchgear.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG FANRONG ELECTRIC CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-08
AI Technical Summary
Existing grid-connected high-voltage switchgear communication devices cannot be adapted to a single interface due to different communication channels, resulting in a limited range of communication applications.
A grid-connected high-voltage switchgear communication device was designed, comprising components such as an equipment compartment, a communication compartment, a data acquisition unit, a communication protocol converter, an interface converter, and a microcontroller. It supports interface conversion for multiple communication channels, thereby enhancing its applicability.
It achieves efficient data transmission and equipment management, improves the stability and security of the grid-connected cabinet, reduces maintenance time and workload, and enhances the applicability of the equipment.
Smart Images
Figure CN224217938U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of grid-connected high-voltage switchgear, specifically to a communication device for grid-connected high-voltage switchgear. Background Technology
[0002] Grid-connected high-voltage switchgear is a key piece of equipment used to connect photovoltaic power plants to the power grid. Its core function is to ensure the smooth integration of photovoltaic power into the public power grid. The switchgear is equipped with advanced power regulation and control devices that can monitor and adjust the output of photovoltaic power in real time to meet the grid connection requirements. Simultaneously, it also has comprehensive protection functions, such as overvoltage, overcurrent, and leakage protection, ensuring that the system can be quickly disconnected in abnormal situations, protecting personal and equipment safety.
[0003] In the existing technology, the use of communication interfaces to connect communication channels still has the following drawbacks: when a single communication interface is connected to communication channels such as RS485, Ethernet or wireless communication, it may be unable to adapt to a single communication interface due to the different communication channels, which reduces the applicability of grid-connected high-voltage switchgear communication. Summary of the Invention
[0004] The purpose of this invention is to provide a grid-connected high-voltage switchgear communication device to solve the problem that different communication channels may prevent the device from adapting to a single communication interface, thus reducing the applicability of grid-connected high-voltage switchgear communication.
[0005] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a grid-connected high-voltage switchgear communication device, comprising a grid-connected cabinet, an equipment compartment on one side of the grid-connected cabinet, a communication compartment on one side of the grid-connected cabinet, a data acquisition unit on the inner bottom surface of the communication compartment, a communication protocol converter on the inner bottom surface of the communication compartment, a microprocessor on the inner bottom surface of the communication compartment, an interface converter on the inner bottom surface of the communication compartment, a microcontroller on the inner bottom surface of the communication compartment, an upper cabinet door rotatably mounted on one side of the grid-connected cabinet, several indicator lights on one side of the upper cabinet door, and an anti-islanding protection device on one side of the upper cabinet door.
[0006] Preferably, the equipment compartment has two fixed partitions inside, the top surface of the partitions has a wire opening, and the bottom surface of the communication compartment has a penetration opening.
[0007] Preferably, a lower cabinet door is rotatably provided on one side of the grid-connected cabinet, and a lower connecting folding plate is fixed on one side of the grid-connected cabinet. The lower connecting folding plate and the lower cabinet door are rotatably connected by a hinge. An upper connecting folding plate is fixed on one side of the grid-connected cabinet, and the upper cabinet door and the upper connecting folding plate are rotatably connected by a hinge.
[0008] Preferably, an installation opening is provided on one side of the lower cabinet door, and a transparent panel is provided inside the installation opening.
[0009] Preferably, the grid-connected cabinet has several ventilation openings on both sides, and the ventilation openings are equipped with dustproof nets.
[0010] Preferably, the equipment compartment has several fixed openings on one side, and an exhaust fan is installed inside each fixed opening. A dust cover is fixed to one side of the grid-connected cabinet.
[0011] Compared with existing technologies, a grid-connected high-voltage switchgear communication device adopting the above technical solution has the following beneficial effects:
[0012] I. By efficiently transmitting and interacting with the working information data of various devices in the grid-connected cabinet, the stable operation and efficient management of the internal devices of the grid-connected cabinet are ensured. By utilizing the various network interfaces on the interface converter, the number of communication channels that can be connected and used is increased, thus expanding the applicability of grid-connected high-voltage cabinet communication.
[0013] Second, most of the equipment in the equipment compartment is installed on the top surface of the partition plate, which avoids direct contact between the equipment and the bottom surface of the equipment compartment. This prevents short circuits caused by moisture accumulation in the humid environment. During operation, the staff can observe the operation of the equipment in the equipment compartment through the transparent plate without opening the lower cabinet door, thus reducing the time and workload of operation and maintenance.
[0014] Third, when the exhaust fan is working, it will draw out the hot air in the equipment compartment, which will remove the heat generated by the equipment during operation. This will prevent the various equipment inside the equipment compartment from malfunctioning due to the high temperature of the working environment, and increase the safety of the equipment in the equipment compartment during operation. Attached Figure Description
[0015] Figure 1 This is a three-dimensional schematic diagram of an embodiment.
[0016] Figure 2 This is a schematic diagram of the split section in an embodiment.
[0017] Figure 3 This is a schematic diagram of the disassembled equipment compartment and dust cover in an embodiment.
[0018] Figure 4 This is a schematic diagram of the splitting point of the lower connecting plate and the upper connecting plate in an embodiment.
[0019] Figure 5 This is a schematic diagram of the system block of an embodiment.
[0020] In the diagram: 1. Grid-connected cabinet; 2. Equipment compartment; 3. Communication compartment; 4. Data acquisition unit; 5. Communication protocol converter; 6. Microprocessor; 7. Interface converter; 8. Upper cabinet door; 9. Indicator light; 10. Anti-islanding protection device; 11. Partition plate; 12. Wire port; 13. Penetration port; 14. Lower cabinet door; 15. Lower connecting folding plate; 16. Upper connecting folding plate; 17. Mounting port; 18. Transparent plate; 19. Ventilation port; 20. Dustproof net; 21. Fixing port; 22. Exhaust fan; 23. Dust cover. Detailed Implementation
[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0022] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a grid-connected high-voltage switchgear communication device includes a grid-connected cabinet 1. An equipment compartment 2 and a communication compartment 3 are located on one side of the grid-connected cabinet 1. A data acquisition unit 4, a communication protocol converter 5, a microprocessor 6, an interface converter 7, and a microcontroller (STM32) are located on the bottom surface of the communication compartment 3. An upper cabinet door 8 is rotatably mounted on one side of the grid-connected cabinet 1. Several indicator lights 9 are located on one side of the upper cabinet door 8, and an anti-islanding protection device 10 is located on one side of the upper cabinet door 8. The data acquisition unit 4, the communication protocol converter 5, the microprocessor 6, the interface converter 7, the indicator lights 9, and the anti-islanding protection device 10 are all electrically connected to the microcontroller.
[0023] During use, the operating data of various devices in the equipment compartment 2 will be collected and recorded by devices such as current sensors, voltage sensors, power meters, frequency meters, temperature sensors, and smart meters in the data acquisition unit 4. At this time, since the interface converter 7 uses its own interface to connect to RS485, Ethernet or wireless communication channels, the data information collected by the data acquisition unit 4 will be sent to the remote monitoring system or control center through the microcontroller and communication channels. This will enable operators to promptly detect abnormalities and take corresponding measures.
[0024] By efficiently transmitting and interacting with the working information data of various devices in the grid-connected cabinet 1, the stable operation and efficient management of the internal devices of the grid-connected cabinet 1 are ensured. By utilizing the various network interfaces on the interface converter 7, the number of communication channels that can be connected and used is increased, and the applicable scope of communication for grid-connected high-voltage cabinets is expanded.
[0025] like Figure 2 and Figure 4 As shown, the equipment compartment 2 has two fixed partitions 11 inside. The top surface of the partitions 11 has a wire opening 12. The bottom surface of the communication compartment 3 has a through opening 13. The grid-connected cabinet 1 has a lower cabinet door 14 rotatably installed on one side. The grid-connected cabinet 1 has a lower connecting folding plate 15 fixed on one side. The lower connecting folding plate 15 and the lower cabinet door 14 are hinged and rotatably installed. The grid-connected cabinet 1 has an upper connecting folding plate 16 fixed on one side. The upper cabinet door 8 and the upper connecting folding plate 16 are hinged and rotatably installed. The lower cabinet door 14 has an installation opening 17 on one side. The installation opening 17 has a transparent plate 18 inside.
[0026] During use, most of the equipment in the equipment compartment 2 is installed on the top surface of the partition plate 11, which avoids direct contact between the equipment and the bottom surface of the equipment compartment 2. This prevents short circuits caused by moisture accumulation on the bottom surface of the equipment compartment 2 due to humidity. During operation, the staff can observe the operation of the equipment inside the equipment compartment 2 through the transparent plate 18 without opening the lower cabinet door 14, thus reducing the time and workload of operation and maintenance.
[0027] like Figure 3 As shown, several ventilation openings 19 are provided on both sides of the grid-connected cabinet 1. Dustproof nets 20 are installed inside the ventilation openings 19. Several fixing openings 21 are provided on one side of the equipment compartment 2. Exhaust fans 22 are installed inside the fixing openings 21. A dust cover 23 is fixed on one side of the grid-connected cabinet 1.
[0028] During use, the exhaust fan 22 will extract the hot air from the equipment compartment 2, thereby removing the heat generated by the equipment in the equipment compartment 2 during operation. This will prevent various equipment inside the equipment compartment 2 from malfunctioning due to the high temperature of the working environment, and increase the safety of the equipment in the equipment compartment 2 during operation.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A grid-connected high-voltage switchgear communication device, comprising a grid-connected cabinet (1), characterized in that, The grid-connected cabinet (1) has an equipment compartment (2) on one side and a communication compartment (3) on one side. The communication compartment (3) has a data acquisition unit (4) on its inner bottom surface, a communication protocol converter (5) on its inner bottom surface, a microprocessor (6) on its inner bottom surface, an interface converter (7) on its inner bottom surface, and a microcontroller on its inner bottom surface. The grid-connected cabinet (1) has an upper cabinet door (8) on one side. The upper cabinet door (8) has several indicator lights (9) on one side and an anti-islanding protection device (10) on one side.
2. The grid-connected high-voltage switchgear communication device according to claim 1, characterized in that: The equipment compartment (2) has two fixed partitions (11) inside. The top surface of the partitions (11) is provided with wire openings (12), and the bottom surface of the communication compartment (3) is provided with penetration openings (13).
3. The grid-connected high-voltage switchgear communication device according to claim 1, characterized in that: The grid-connected cabinet (1) has a lower cabinet door (14) rotatably mounted on one side, and a lower connecting folding plate (15) is fixed on one side of the grid-connected cabinet (1). The lower connecting folding plate (15) and the lower cabinet door (14) are rotatably mounted by hinges. The grid-connected cabinet (1) has an upper connecting folding plate (16) fixed on one side, and the upper cabinet door (8) and the upper connecting folding plate (16) are rotatably mounted by hinges.
4. The grid-connected high-voltage switchgear communication device according to claim 3, characterized in that: The lower cabinet door (14) has an installation opening (17) on one side, and a transparent panel (18) is installed inside the installation opening (17).
5. The grid-connected high-voltage switchgear communication device according to claim 1, characterized in that: The grid-connected cabinet (1) has several ventilation openings (19) on both sides, and the ventilation openings (19) are equipped with dustproof nets (20).
6. The grid-connected high-voltage switchgear communication device according to claim 1, characterized in that: The equipment compartment (2) has several fixed openings (21) on one side, and an exhaust fan (22) is installed inside the fixed opening (21). A dust cover (23) is fixed on one side of the grid-connected cabinet (1).