GIS equipment partial discharge rapid positioning device based on wireless transmission and ultrahigh frequency sensor

Abstract

The utility model discloses a GIS equipment partial discharge rapid positioning device based on wireless transmission and an ultrahigh frequency sensor. The GIS equipment partial discharge rapid positioning device comprises a UHF sensor, a first wireless communication module, a power supply module, a GIS cavity external signal receiver, a GIS cavity external signal processing module, a second wireless communication module and a cloud management platform. The UHF sensor is connected with the first wireless communication module; the power supply module is connected with the UHF sensor and the first wireless communication module. The GIS cavity external signal receiver is respectively connected with the first wireless communication module and the GIS cavity external signal processing module; the second wireless communication module is connected with the GIS cavity external signal processing module and the cloud management platform. According to the utility model, ultrahigh-frequency signals generated by partial discharge can be captured in time, the problems of complexity and limitation of wired connection can be avoided, limitation of the size of GIS equipment and detection operation space is avoided, fault positioning can be completed in a shorter time, and the operation reliability and stability of a power system are improved.

Description

Technical Field

[0001] This utility model relates to the field of discharge monitoring technology, and in particular to a rapid partial discharge location device for GIS equipment based on wireless transmission and ultra-high frequency sensors. Background Technology

[0002] Gas-insulated switchgear (GIS) is a device that integrates circuit breakers, busbars, incoming and outgoing bushings, disconnectors, grounding switches, voltage transformers, current transformers, surge arresters, cable terminals, and other equipment into a single enclosed space. It uses SF6 gas as the insulating medium to enhance the insulation performance between the devices. Through optimized design, GIS not only effectively reduces the size of the equipment but also decreases the connection distance between devices, thus significantly reducing the overall size and facilitating widespread installation in power systems. Due to the high voltage levels and complex operating environment of ultra-high voltage (UHV) GIS equipment, the deterioration and defects in its internal insulation have a significant impact on the safe and stable operation of the power grid. Therefore, monitoring the condition of the internal equipment of GIS is crucial. Common defects in operating UHV GIS equipment include thermal defects, partial discharge defects, and mechanical defects. Research indicates that partial discharge defects are the main cause of insulation deterioration in UHV GIS equipment. Ultra-high frequency (UHF) detection methods, due to their high detection frequency, can effectively avoid interference such as corona discharge in the field and have high detection sensitivity, enabling the identification of insulation defect types.

[0003] However, current fault location in GIS equipment in power systems mainly relies on ultrasonic positioning. This involves transmitting signals from external ultrasonic sensors via wired connection, processing them, and then connecting them to an oscilloscope for display or a central processing unit for analysis. However, this wired fault location method is limited by the size of the GIS equipment and the available space for detection and operation, restricting sensor placement and hindering the rapid and effective location of faults occurring during GIS equipment operation. Utility Model Content

[0004] The purpose of this invention is to provide a rapid partial discharge location device for GIS equipment based on wireless transmission and ultra-high frequency sensors. This device can promptly capture ultra-high frequency signals generated by partial discharge, while avoiding the cumbersome and restrictive problems of wired connections. The sensor placement is more flexible, not limited by the size of the GIS equipment or the detection and operation space, and can complete fault location in a shorter time, improving the reliability and stability of the power system. The specific technical solution is as follows:

[0005] A rapid partial discharge location device for GIS equipment based on wireless transmission and UHF sensors includes a UHF sensor, a first wireless communication module, a power supply module, an external signal receiver for the GIS cavity, an external signal processing module for the GIS cavity, a second wireless communication module, and a cloud management platform.

[0006] The UHF sensor is connected to the first wireless communication module; the power module is connected to both the UHF sensor and the first wireless communication module; the GIS external cavity signal receiver is connected to both the first wireless communication module and the GIS external cavity signal processing module; and the second wireless communication module is connected to both the GIS external cavity signal processing module and the cloud management platform.

[0007] Preferably, it also includes a power monitoring module; the power monitoring module is connected to both the power supply module and the external signal processing module of the GIS cavity.

[0008] Preferably, it also includes a display module; the display module is connected to the GIS external signal processing module.

[0009] Preferably, the first wireless communication module is a Bluetooth module.

[0010] Preferably, the second wireless communication module is an NB-IoT wireless communication module.

[0011] Preferably, the cloud management platform is a server.

[0012] Preferably, the display module is a liquid crystal display screen.

[0013] Compared with existing technologies, this utility model has the following beneficial effects:

[0014] This invention utilizes a UHF sensor to detect discharge signals in GIS equipment, offering higher sensitivity and response speed, and enabling timely capture of ultra-high frequency signals generated by partial discharge. Simultaneously, the wireless communication module connecting the UHF sensor avoids the cumbersome and restrictive nature of wired connections, allowing for more flexible sensor placement, unrestricted by the size of the GIS equipment or the available detection space. This enables faster fault location and improves the reliability and stability of the power system. Furthermore, the wireless transmission method facilitates installation and maintenance, reducing costs and time. The flexible sensor placement also simplifies equipment maintenance, allowing for adjustments to position and number as needed. A cloud management platform enables remote monitoring and management of the equipment, facilitating real-time monitoring and fault diagnosis by maintenance personnel, improving equipment management efficiency, providing strong support for intelligent power system management, and offering new methods for condition monitoring and fault early warning. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0021] Example 1

[0022] As shown in the figure, a rapid partial discharge location device for GIS equipment based on wireless transmission and UHF sensors includes a UHF sensor, a first wireless communication module, a power supply module, an external signal receiver for the GIS cavity, an external signal processing module for the GIS cavity, a second wireless communication module, and a cloud management platform.

[0023] The UHF sensor is connected to the first wireless communication module; the power module is connected to both the UHF sensor and the first wireless communication module; the GIS external cavity signal receiver is connected to both the first wireless communication module and the GIS external cavity signal processing module; and the second wireless communication module is connected to both the GIS external cavity signal processing module and the cloud management platform.

[0024] Next, the working principle of this embodiment will be described in detail so that those skilled in the art can better understand this utility model:

[0025] Multiple UHF sensors are configured to detect ultra-high frequency electrical signals generated by partial discharge within the GIS equipment and transmit these signals to a first wireless communication module. The first wireless communication module transmits the ultra-high frequency electrical signals to an external signal receiver outside the GIS cavity via wireless communication technology. This external signal receiver is a signal conditioning circuit; after receiving the signal, it transmits it to an external signal processing module for processing. This external signal processing module is a microcontroller; the processed signal is transmitted via a second wireless communication module to a cloud management platform for storage, analysis, and management. A power supply module provides operating power to the UHF sensors and the first wireless communication module.

[0026] Example 2

[0027] The difference between this embodiment and Embodiment 1 is that it also includes a power monitoring module; the power monitoring module is connected to both the power supply module and the GIS cavity external signal processing module. The power monitoring module is used to monitor the power status of the power supply module in real time and transmit the power information to the GIS cavity external signal processing module. This allows for real-time monitoring of the power supply module's power status, enabling timely charging or power replacement to ensure the continuous and stable operation of the device.

[0028] The working principle of this embodiment is the same as that of Embodiment 1.

[0029] Example 3

[0030] The difference between this embodiment and Embodiment 2 is that it also includes a display module; the display module is connected to the GIS external cavity signal processing module. The GIS external cavity signal processing module transmits the processed partial discharge signal and power information to the display module for display. On-site personnel can intuitively understand the partial discharge status and power status of the GIS equipment through the display module, facilitating timely action.

[0031] The working principle of this embodiment is the same as that of Embodiment 1.

[0032] Example 4

[0033] The difference between this embodiment and Embodiment 3 is that the first wireless communication module is a Bluetooth module. The first wireless communication module uses Bluetooth, and the ultra-high frequency electrical signal detected by the UHF sensor is wirelessly transmitted to the external signal receiver of the GIS cavity via the Bluetooth module.

[0034] The working principle of this embodiment is the same as that of Embodiment 1.

[0035] Example 5

[0036] The difference between this embodiment and embodiment 4 is that the second wireless communication module is an NB-IoT wireless communication module. The signal processed by the GIS external cavity signal processing module is transmitted to the cloud management platform via NB-IoT wireless communication technology. The NB-IoT wireless communication module features low power consumption, wide coverage, and strong anti-interference capabilities, ensuring stable signal transmission to the cloud management platform.

[0037] The working principle of this embodiment is the same as that of Embodiment 1.

[0038] Example 6

[0039] The difference between this embodiment and Embodiment 5 is that the cloud management platform is a server. This cloud management platform, as a server, is used to store historical data generated during GIS equipment monitoring. The server can store, analyze, and process large amounts of monitoring data, providing stronger support for equipment maintenance and management.

[0040] The working principle of this embodiment is the same as that of Embodiment 1.

[0041] Example 7

[0042] The difference between this embodiment and embodiment 6 is that the display module is a liquid crystal display screen. The liquid crystal display screen is used to display information such as partial discharge signals, battery level, and sensor operating status of the GIS equipment, making it convenient for staff to view and providing a more intuitive and clear information display.

[0043] The working principle of this embodiment is the same as that of Embodiment 1.

[0044] In summary, this invention utilizes a UHF sensor to detect discharge signals in GIS equipment, offering higher sensitivity and response speed, enabling timely capture of ultra-high frequency signals generated by partial discharge. Furthermore, the wireless communication module connecting the UHF sensor avoids the cumbersome and restrictive nature of wired connections, allowing for more flexible sensor placement, unrestricted by the size of the GIS equipment or the available detection space. This enables faster fault location and improves the reliability and stability of the power system. In addition, the wireless transmission method facilitates installation and maintenance, reducing costs and time. The flexible sensor placement also simplifies equipment maintenance, allowing for adjustments to position and quantity as needed. The cloud management platform enables remote monitoring and management of the equipment, facilitating real-time monitoring and fault diagnosis by maintenance personnel, improving equipment management efficiency, providing strong support for intelligent power system management, and offering new methods for status monitoring and fault early warning.

[0045] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A GIS device partial discharge rapid positioning device based on wireless transmission and UHF sensor, characterized in that, The UHF sensor, the first wireless communication module, the power module, the GIS cavity external signal receiver, the GIS cavity external signal processing module, the second wireless communication module and the cloud management platform are connected. The UHF sensor is connected with the first wireless communication module; the power module is connected with the UHF sensor and the first wireless communication module respectively; the GIS cavity external signal receiver is connected with the first wireless communication module and the GIS cavity external signal processing module respectively; the second wireless communication module is connected with the GIS cavity external signal processing module and the cloud management platform respectively.

2. The device according to claim 1, characterized in that, The power monitoring module is further included and connected with the power module and the GIS cavity external signal processing module respectively.

3. The device according to claim 1, characterized in that, The display module is further included and connected with the GIS cavity external signal processing module.

4. The device according to claim 1, characterized in that, The first wireless communication module is a Bluetooth module.

5. The device according to claim 1, characterized in that, The second wireless communication module is an NB-IoT wireless communication module.

6. The device according to claim 1, characterized in that, The cloud management platform is a server.

7. The device according to claim 3, characterized in that, The display module is a liquid crystal display screen.

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