Fault early warning device, system and method for high and low voltage bushings of distribution transformer

Abstract

The invention provides a distribution transformer high and low voltage bushing fault early warning device, system and method, and relates to the technical field of distribution transformers, the device comprises an energy collection assembly, the energy collection assembly comprises a transformer bushing wiring terminal, and the transformer bushing wiring terminal is used for being electrically connected with a transformer high and low voltage bushing; the energy collection assembly is electrically connected with the power supply assembly; and the early warning assembly is connected with the energy collection assembly, the early warning assembly is electrically connected with the power supply assembly, and the early warning assembly is at least used for monitoring the working condition information of the transformer high-low voltage bushing. Vibration energy generated by the transformer is collected through the energy collection assembly for energy collection, the energy is stored in the power supply assembly, the power supply assembly supplies power to the early warning assembly, and the self-power-supply capacity of the distribution transformer high-low-voltage sleeve fault early warning device is achieved. The problem that the power supply mode of the fault early warning device of the transformer bushing in the prior art is limited is solved.

Description

Technical Field

[0001] The present application relates to the technical field of distribution transformers, and in particular to a distribution transformer high and low voltage bushing fault warning device, system and method. Background Art

[0002] In the prior art, the fault warning device usually relies on an external power source (such as AC power or solar power) for power supply, and transmits the transformer bushing status data (such as temperature, vibration, etc.) collected by the sensor to the background monitoring system by wired or wireless means. Although these devices can monitor the status of the transformer bushing, there is a problem of limited power supply. Especially in the absence of sunlight or indoor environment, solar power supply cannot effectively supply power, and AC power supply may be limited by line laying and maintenance costs. In addition, the fault warning device in the prior art may not have the ability to self-power, and cannot fully utilize the vibration energy generated by the transformer itself for energy collection and conversion.

[0003] To address the above problems, no effective solution has been proposed yet. Summary of the invention

[0004] The main purpose of the present application is to provide a distribution transformer high and low voltage bushing fault warning device, system and method to solve the problem of limited power supply mode of the transformer bushing fault warning device in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a distribution transformer high and low voltage bushing fault warning device is provided, including: an energy collection component, the energy collection component includes a transformer bushing terminal, the transformer bushing terminal is used to be electrically connected to the transformer high and low voltage bushing; a power supply component, the energy collection component is electrically connected to the power supply component; an early warning component, the early warning component is connected to the energy collection component, the early warning component is electrically connected to the power supply component, and the early warning component is at least used to monitor the operating condition information of the transformer high and low voltage bushing.

[0006] Furthermore, it also includes: a protective cover, which is detachably connected to the energy collection component, and the protective cover has a accommodating cavity, and the power supply component, the early warning component and part of the energy collection component are all arranged in the accommodating cavity.

[0007] Furthermore, the energy collection component includes: a base, which is connected to the transformer bushing terminal; a piezoelectric chip component, which is electrically connected to the power supply component; and a cantilever beam base, through which the piezoelectric chip component is connected to the base.

[0008] Furthermore, the piezoelectric sheet subassembly includes: a first piezoelectric sheet, the first piezoelectric sheet is connected to the cantilever beam base; a second piezoelectric sheet, the second piezoelectric sheet is connected to the cantilever beam base; a support bar, the support bar is connected to the cantilever beam base, the first piezoelectric sheet and the second piezoelectric sheet are relatively arranged on both sides of the support bar; a mass block, the mass block is arranged at one end of the first piezoelectric sheet away from the cantilever beam base, and / or the mass block is arranged at one end of the second piezoelectric sheet away from the cantilever beam base.

[0009] Furthermore, the power supply component includes: an energy collection circuit, the energy collection circuit is electrically connected to the energy collection component, and the energy collection circuit is electrically connected to the early warning component.

[0010] Furthermore, the energy collection circuit includes: a battery, which is electrically connected to the energy collection component; a capacitor, which is electrically connected to the energy collection component, the capacitor is electrically connected to the battery, and the capacitor is electrically connected to the early warning component.

[0011] Furthermore, the early warning component includes: a main control board, which is arranged adjacent to the base; a temperature sensor, which is arranged on the base and is electrically connected to the main control board; a vibration sensor, which is arranged on the base and is electrically connected to the main control board; and a early warning light, which is electrically connected to the main control board.

[0012] Furthermore, the early warning component includes: a communication module, the communication module is electrically connected to the main control board, and the communication module is used to receive and send data.

[0013] According to another aspect of the present application, a distribution transformer high and low voltage bushing fault warning system is provided, including the distribution transformer high and low voltage bushing fault warning device in the embodiment of the present application, and the distribution transformer high and low voltage bushing fault warning system includes: a gateway module, the gateway module is electrically connected to the warning component, and the gateway module is used to receive and send data; a supervision subsystem, the supervision subsystem is electrically connected to the gateway module.

[0014] According to another aspect of the present application, a distribution transformer high and low voltage bushing fault warning method is provided. The distribution transformer high and low voltage bushing fault warning device of the embodiment of the present application adopts the distribution transformer high and low voltage bushing fault warning method for control, and the method includes the following steps: obtaining temperature signals and vibration signals of the distribution transformer high and low voltage bushings; based on the temperature signals and vibration signals, determining the operating condition information of the distribution transformer high and low voltage bushings, the operating condition information includes: fault conditions and normal conditions; in response to the operating condition information being a fault condition, generating a target control strategy, and the target control strategy is at least used to control the warning component for warning.

[0015] By applying the technical solution of the present application, through the coordinated work of energy collection components, power supply components and early warning components, real-time monitoring of the status of high and low voltage bushings of the transformer and fault early warning are achieved, while ensuring the energy self-sufficiency of the device, improving the safety and maintenance efficiency of the power system, and solving the problem of limited power supply mode of the fault early warning device of the transformer bushing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 A structural schematic diagram of an embodiment of a high- and low-voltage bushing fault warning device for a distribution transformer according to the present application is shown;

[0018] Figure 2 A circuit diagram of an embodiment of an energy harvesting circuit according to the present application is shown;

[0019] Figure 3 A structural schematic diagram of an embodiment of a high and low voltage bushing fault warning system for a distribution transformer according to the present application is shown;

[0020] Figure 4 A structural block diagram of an embodiment of a distribution transformer high and low voltage bushing fault warning system according to the present application is shown.

[0021] The above drawings include the following reference numerals:

[0022] 10. Energy collection component; 101. Nut; 102. Screw;

[0023] 11. Transformer bushing terminal;

[0024] 12. Base;

[0025] 13. Piezoelectric sheet subassembly; 131. First piezoelectric sheet; 132. Second piezoelectric sheet; 133. Support bar; 134. Mass block;

[0026] 14. Cantilever beam base;

[0027] 20. Power supply component; 21. Battery; 22. Capacitor;

[0028] 30. Early warning component; 31. Main control board; 32. Temperature sensor; 33. Vibration sensor; 34. Early warning light; 35. Communication module;

[0029] 40. Protective cover;

[0030] 50. Gateway module;

[0031] 60. Supervision subsystem. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0036] Combination Figure 1 In a specific embodiment of the present application, a distribution transformer high and low voltage bushing fault warning device is provided.

[0037] Specifically, the distribution transformer high and low voltage bushing fault warning device includes: an energy collection component 10, a power supply component 20 and a warning component 30, the energy collection component 10 includes a transformer bushing terminal 11, the transformer bushing terminal 11 is used to be electrically connected to the transformer high and low voltage bushing; the energy collection component 10 is electrically connected to the power supply component 20; the warning component 30 is connected to the energy collection component 10, and the warning component 30 is electrically connected to the power supply component 20, and the warning component 30 is at least used to monitor the operating condition information of the transformer high and low voltage bushings.

[0038] In this embodiment, the energy collection component 10 is responsible for collecting the vibration energy generated by the transformer during operation and converting it into electrical energy. It includes the transformer bushing terminal 11 as a part that is in direct contact with the high and low voltage bushings of the transformer, which can sense and receive the vibration of the bushing under the action of electromagnetic and thermal stress, and uses a cantilever beam piezoelectric transducer (such as the first piezoelectric sheet 131 and the second piezoelectric sheet 132) to capture the vibration, and convert the vibration energy into electrical energy through the piezoelectric effect. The cantilever beam base 14 effectively amplifies the vibration effect through the cooperation of the support bar 133 and the mass block 134, thereby improving the energy conversion efficiency. The energy collection component 10 transfers the collected energy to the power supply component 20 through electrical connection. The power supply component 20 is used to store and manage the electrical energy converted by the energy collection component 10. It includes an energy storage battery 21 and a capacitor 22, which are connected in parallel at the Vout output end to form a stable power supply. When the device is in a low power consumption state, the energy collection component 10 provides the converted electric energy to the power supply component 20 for storage; when the early warning component 30 needs to work, the power supply component 20 supplies power to it to ensure that the early warning component 30 can continue to operate and monitor. The early warning component 30 is responsible for monitoring and analyzing the operating information of the high and low voltage bushings of the transformer, including temperature changes and vibration conditions. The early warning component 3 includes a temperature sensor 32 and a vibration sensor 33, which are electrically connected to the energy collection component 10 and the power supply component 20, and transmit the monitored information to the core control unit (main control board 31). The early warning component 30 also includes an early warning light 34 and a communication module 35 (LoRa communication module) for on-site indication and remote transmission of fault early warning signals. When the monitored operating condition information reaches the preset fault warning threshold, the early warning component 30 will trigger the early warning light 34 to send a signal.

[0039] Overall, the distribution transformer high and low voltage bushing fault warning device realizes real-time monitoring and fault warning of the transformer high and low voltage bushing status through the coordinated work of the energy collection component 10, the power supply component 20 and the warning component 30, while ensuring the energy self-sufficiency of the device and improving the safety and maintenance efficiency of the power system. This design not only reduces the dependence on external power supply, but also reduces the overall energy consumption through low-power communication modules and intelligent energy management strategies, and enhances the environmental adaptability and long-term stability of the device.

[0040] Furthermore, the device also includes a protective cover 40, which is detachably connected to the energy collection component 10, and the protective cover 40 has a receiving cavity, in which the power supply component 20, the warning component 30 and part of the energy collection component 10 are all arranged. By placing these sensitive components in the receiving cavity of the protective cover 40, the device not only enhances its ability to resist environmental interference, but also improves the overall safety and reliability, ensuring that the fault conditions of the high and low voltage bushings of the transformer can be accurately and timely monitored and warned in various application scenarios.

[0041] Combination Figure 1 As shown, in this embodiment, the provision of the protective cover 40 can effectively isolate the influence of the external environment on the internal electronic components, such as preventing dust, moisture, ultraviolet radiation and physical impact, etc., to ensure the stability and life of the internal components. The protective cover 40 can be made of a transparent material, such as polycarbonate or acrylic, so that the operation and maintenance personnel or monitoring personnel can directly observe the status of the warning light 34 through the protective cover 40, and can understand the operating status of the equipment without disassembling or opening the protective cover 40. The protective cover 40 is detachably connected to the energy harvesting component 10, and the operation and maintenance personnel can easily open the protective cover to inspect, clean or replace the internal components without complicated tools or techniques.

[0042] Furthermore, the energy collection component 10 includes: a base 12, a piezoelectric chip component 13, and a cantilever beam base 14. The base 12 is connected to the transformer bushing terminal 11; the piezoelectric chip component 13 is electrically connected to the power supply component 20; and the piezoelectric chip component 13 is connected to the base 12 via the cantilever beam base 14.

[0043] In this embodiment, the base 12 can be made of, but is not limited to, copper alloy so as to have good thermal conductivity and mechanical strength. The base 12 is connected to the transformer bushing terminal 11 through a nut 101 and a screw 102 to ensure that the device can be firmly mounted on the transformer and remain stable under the vibration generated when the transformer is running. The base 12 is also provided with a groove for mounting a temperature sensor 32 so as to accurately monitor the temperature of the bushing terminal. The piezoelectric chip subassembly 13 is a key part of energy harvesting, which includes a first piezoelectric chip 131 and a second piezoelectric chip 132, a support bar 133 (support metal bar) between the two, and a mass block 134 disposed on the first piezoelectric chip 131 and / or the second piezoelectric chip 132. When the transformer vibrates, the first piezoelectric chip 131 and the second piezoelectric chip 132 of the cantilever beam structure produce relative displacement due to the inertia of the mass block 134, thereby generating electric charges inside the first piezoelectric chip 131 and the second piezoelectric chip 132, and realizing the conversion of vibration energy into electrical energy. It should be noted that this conversion process is based on the piezoelectric effect, that is, some crystal materials will generate charges on their surfaces when subjected to mechanical stress, and when the charges are collected, this stress energy can be converted into electrical energy. The cantilever beam base 14 is used to fix the piezoelectric chip subassembly 13, which is connected to the base 12 by screws 102 to form a solid support structure. The design of the cantilever beam base 14 ensures that the piezoelectric chip subassembly 13 can effectively capture the vibration of the transformer and convert it into electrical energy. At the same time, the cantilever beam base 14 is also isolated from the main control board 31 through the through hole set on the main control board 31, avoiding the direct impact of the vibration energy on the main control board 31 during the transmission process, thereby reducing energy loss.

[0044] Through the above structure and connection method, the base 12 in the energy collection component 10 is directly connected to the transformer bushing terminal 11, and the piezoelectric chip component 13 is connected to the base 12 through the cantilever beam base 14, and is electrically connected to the power supply component 20. This structure ensures that the vibration energy can be efficiently collected and converted, and the electrical energy is provided to the power supply component 20 through electrical connection, and then the early warning component 30 is powered to achieve long-term stable operation without external power supply. This design makes full use of the vibration energy of the transformer itself, improves energy utilization efficiency, reduces dependence on traditional power supplies, and enhances the adaptability and reliability of the device in various environments.

[0045] Furthermore, the piezoelectric sheet subassembly 13 includes a first piezoelectric sheet 131, a second piezoelectric sheet 132, a support bar 133 and a mass block 134. The first piezoelectric sheet 131 is connected to the cantilever beam base 14; the second piezoelectric sheet 132 is connected to the cantilever beam base 14; the support bar 133 is connected to the cantilever beam base 14, and the first piezoelectric sheet 131 and the second piezoelectric sheet 132 are relatively arranged on both sides of the support bar 133; the mass block 134 is arranged at one end of the first piezoelectric sheet 131 away from the cantilever beam base 14, and the mass block 134 is arranged at one end of the second piezoelectric sheet 132 away from the cantilever beam base 14. This arrangement enables the piezoelectric sheet subassembly 13 to more efficiently convert the vibration energy of the transformer into electrical energy, providing a self-powered function for the early warning device. This design not only optimizes the efficiency of energy collection and conversion, but also improves the reliability and environmental adaptability of the device, so that it can operate stably under various conditions.

[0046] Combination Figure 1 As shown, in this embodiment, when the transformer vibrates, the support bar 133 is located between the first piezoelectric sheet 131 and the second piezoelectric sheet 132, and is used to fix the two piezoelectric sheets and maintain the relative position between them. The inertia of the mass block 134 causes the first piezoelectric sheet 131 and the second piezoelectric sheet 132 to move relative to each other, thereby generating charges inside the piezoelectric sheet. These charges are then collected and converted into electrical energy to power the device. Among them, the role of the mass block 134 is to amplify the vibration effect through its own inertia. When the transformer vibrates, the inertia of the mass block 134 will increase the vibration amplitude of the piezoelectric sheet assembly, thereby generating more charges and improving the efficiency of energy collection and conversion. In one embodiment of the present application, there are at least two mass blocks 134, one of the at least two mass blocks 134 is arranged at one end of the first piezoelectric sheet 131 away from the cantilever beam base 14, and the other is arranged at one end of the second piezoelectric sheet 132 away from the cantilever beam base 14, so as to achieve more balanced vibration energy transmission.

[0047] Combination Figure 2 As shown, in this embodiment, the power supply component 20 includes an energy collection circuit, the energy collection circuit is electrically connected to the energy collection component 10, and the energy collection circuit is electrically connected to the early warning component 30.

[0048] In this embodiment, the input end of the energy collection circuit is electrically connected to the piezoelectric chip subassembly 13 in the energy collection component 10. When the piezoelectric chip subassembly 13 converts the vibration energy of the transformer into electrical energy, these charges will be collected by the energy collection circuit and enter the circuit through the input end. The energy collection circuit includes an energy conversion and management module, such as Figure 2The LTC3588-1 regulator circuit portion shown in the figure can convert the unstable charge output by the piezoelectric chip subassembly 13 into stable and usable electrical energy. In addition, the circuit also includes an energy storage and management unit for processing and storing the collected energy for use by the early warning component 30 when needed. This process involves charge collection, voltage stabilization, storage and energy distribution to ensure that the early warning component can obtain sufficient electrical energy at any time. The output end of the energy collection circuit is connected to the battery 21 and capacitor 22 in the power supply component 20, as well as the early warning component 30. When the early warning component 30 needs energy, the energy collection circuit extracts electrical energy from the battery 21 and capacitor 22, and provides it to the early warning component 30 through the output end.

[0049] Through the above-mentioned settings, the energy collection circuit in the power supply component 20 can not only efficiently convert vibration energy into electrical energy, but also intelligently manage the energy to ensure that the early warning component 30 can obtain a stable and reliable power supply under any circumstances, thereby realizing self-powered operation of the fault warning device.

[0050] Furthermore, the energy collection circuit includes a battery 21 and a capacitor 22, the battery 21 is electrically connected to the energy collection component 10; the capacitor 22 is electrically connected to the energy collection component 10, the capacitor 22 is electrically connected to the battery 21, and the capacitor 22 is electrically connected to the early warning component 30.

[0051] In this embodiment, the input end of the energy collection circuit is electrically connected to the piezoelectric chip subassembly 13 in the energy collection component 10. When the piezoelectric chip subassembly 13 converts the vibration energy of the transformer into electrical energy, these charges will be collected by the energy collection circuit and enter the circuit through the input end. The output end of the energy collection circuit is connected to the battery 21 and capacitor 22 in the power supply component 20, as well as the early warning component 30. When the early warning component 30 needs energy, the energy collection circuit extracts electrical energy from the battery 21 and capacitor 22, and provides it to the early warning component 30 for use through the output end.

[0052] Furthermore, the early warning component 30 includes a main control board 31, a temperature sensor 32, a vibration sensor 33 and an early warning light 34. The main control board 31 is arranged adjacent to the base 12; the temperature sensor 32 is arranged on the base 12, and the temperature sensor 32 is electrically connected to the main control board 31; the vibration sensor 33 is arranged on the base 12, and the vibration sensor 33 is electrically connected to the main control board 31; and the early warning light 34 is electrically connected to the main control board 31. Through the coordinated work of the main control board 31, the temperature sensor 32, the vibration sensor 33 and the early warning light 34, the temperature and vibration of the transformer bushing can be monitored in real time, and a rapid response can be made when an abnormality is detected, and an early warning signal can be issued, which helps the operation and maintenance personnel to take timely measures to avoid major failures and ensure the safe operation of the power system.

[0053] Combination Figure 1 As shown, in this embodiment, the main control board 31 integrates a microprocessor, a memory, and a communication module for data acquisition, storage, analysis, and remote communication. In low power mode or sleep mode, the main control board 31 will periodically wake up to collect sensor data, and after analysis, decide whether to issue an early warning signal. The temperature sensor 32 is fixed on the base 12, and the position is selected to be close to the transformer bushing terminal so as to accurately monitor its temperature change. The temperature sensor 32 transmits the temperature data to the main control board 31 in real time through an electrical connection. The vibration sensor 33 is also arranged on the base 12 to monitor the vibration of the transformer. It can capture the slight vibration changes during the operation of the transformer and send these data to the main control board 31 through an electrical connection. The early warning light 34 is directly electrically connected to the main control board 31. When the main control board 31 receives abnormal temperature or vibration data, it will drive the early warning light 34 to light up, and remind the operation and maintenance personnel to pay attention in a visual way on site. The color or flashing frequency of the early warning light 34 can be set to different fault types or severity levels to provide intuitive early warning information.

[0054] Furthermore, the early warning component 30 includes a communication module 35, which is electrically connected to the main control board 31, and the communication module 35 is used to receive and send data. By integrating the communication module 35, the early warning component 30 can not only realize the temperature and vibration early warning on site, but also remotely transmit these early warning information to the supervisor, so that the operation and maintenance personnel can understand the status of the transformer in a timely and accurate manner, greatly improving the safety and reliability of the power system. In addition, the communication module 35 also provides the ability to remotely manage the equipment, which is convenient for the maintenance and upgrading of the early warning device. To adapt to those power monitoring equipment that need to operate in an unattended environment or in an environment with poor communication conditions.

[0055] In this embodiment, the communication module 35 receives data from the main control board 31, which may include real-time status information monitored by the temperature sensor 32 and the vibration sensor 33, and preliminary analysis results based on these data by the main control board 31. The microprocessor inside the communication module 35 will further process the data to prepare for subsequent wireless transmission.

[0056] In a preferred embodiment of the present application, the communication module 35 (LoRa communication module) sends the processed data to the gateway module 50 (LoRa gateway) through its built-in wireless transmitter. LoRa technology is very suitable for communication between the early warning device and the remote gateway due to its long-distance and low-power characteristics, especially when the early warning device is deployed in a remote or indoor environment. The data sent may include information such as early warning signals, sensor data, and the health status of the device. The communication module 35 can not only send data, but also receive instructions from the supervision subsystem 60. These instructions may include adjusting the monitoring frequency of the sensor, updating the early warning threshold, executing remote diagnostic procedures, etc., so that the early warning device can be operated more intelligently and flexibly under remote monitoring and management.

[0057] According to another aspect of the present application, a distribution transformer high and low voltage bushing fault warning system is also provided, including the distribution transformer high and low voltage bushing fault warning device in the embodiment of the present application, combined with Figure 2 As shown, the distribution transformer high and low voltage bushing fault warning system includes: energy collection component 10, power supply component 20, warning component 30, gateway module 50 and supervision subsystem 60, the energy collection component 10 includes transformer bushing terminal 11, the transformer bushing terminal 11 is used to be electrically connected to the transformer high and low voltage bushing; the energy collection component 10 is electrically connected to the power supply component 20; the warning component 30 is connected to the energy collection component 10, the warning component 30 is electrically connected to the power supply component 20, and the warning component 30 is at least used to monitor the working condition information of the transformer high and low voltage bushing. The gateway module 50 is electrically connected to the warning component 30, and the gateway module 50 is used to receive and send data; the supervision subsystem 60 is electrically connected to the gateway module 50.

[0058] In this embodiment, the energy collection component 10 is responsible for collecting the vibration energy generated by the transformer during operation and converting it into electrical energy. It includes the transformer bushing terminal 11 as a part that is in direct contact with the high and low voltage bushings of the transformer, which can sense and receive the vibration of the bushing under the action of electromagnetic and thermal stress, and uses a cantilever beam piezoelectric transducer (such as the first piezoelectric sheet 131 and the second piezoelectric sheet 132) to capture the vibration, and convert the vibration energy into electrical energy through the piezoelectric effect. The cantilever beam base 14 effectively amplifies the vibration effect through the cooperation of the support bar 133 and the mass block 134, thereby improving the energy conversion efficiency. The energy collection component 10 transfers the collected energy to the power supply component 20 through electrical connection. The power supply component 20 is used to store and manage the electrical energy converted by the energy collection component 10. It includes an energy storage battery 21 and a capacitor 22, which are connected in parallel at the Vout output end to form a stable power supply. When the device is in a low power consumption state, the energy collection component 10 provides the converted electric energy to the power supply component 20 for storage; when the early warning component 30 needs to work, the power supply component 20 supplies power to it to ensure that the early warning component 30 can continue to operate and monitor. The early warning component 30 is responsible for monitoring and analyzing the working condition information of the high and low voltage bushings of the transformer, including temperature changes and vibration conditions. The early warning component 30 includes a temperature sensor 32 and a vibration sensor 33, which are electrically connected to the energy collection component 10 and the power supply component 20, and transmit the monitored information to the core control unit (main control board 31). The early warning component 30 also includes an early warning light 34 and a communication module 35 (LoRa communication module) for on-site indication and remote transmission of fault early warning signals. When the monitored working condition information reaches the preset fault early warning threshold, the early warning component 30 will trigger the early warning light 34 to send a signal, and at the same time send the early warning data to the gateway module 50 (LoRa gateway) through the communication module 35 (LoRa communication module), and then the gateway module 50 (LoRa gateway) transmits it to the supervision subsystem 60.

[0059] According to an embodiment of the present invention, an embodiment of a method for early warning of high and low voltage bushing faults of a distribution transformer is provided. It should be noted that the steps of the method can be executed in a computer system such as a set of computer executable instructions, and although a logical sequence is shown in the flow chart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0060] The method embodiment can be executed in an electronic device or a similar computing device including a memory and a processor. Taking the high and low voltage bushing fault warning terminal of the distribution transformer as an example, the high and low voltage bushing fault warning terminal of the distribution transformer may include one or more processors (the processor may include but is not limited to a central processing unit (CPU), a graphics processing unit (GPU), a digital signal processing (DSP) chip, a microprocessor (MCU), a programmable logic device (Field Programmable Gate Array, FPGA), a neural network processor (Neural-network Processor Unit, NPU), a tensor processor (Tensor Processing Unit, TPU), an artificial intelligence (Artificial Intelligence, AI) type processor, etc.) and a memory for storing data. Optionally, the above-mentioned distribution transformer high and low voltage bushing fault warning terminal may also include a transmission device, an input and output device, and a display device for communication functions. It can be understood by ordinary technicians in this field that the above-mentioned structural description is only for illustration, and it does not limit the structure of the above-mentioned distribution transformer high and low voltage bushing fault warning terminal. For example, the distribution transformer high and low voltage bushing fault warning terminal may also include more or fewer components than the above structural description, or have a configuration different from the above structural description.

[0061] The memory can be used to store computer programs, for example, software programs and modules of application software, such as the computer programs corresponding to the distribution transformer high and low voltage bushing fault early warning method in the embodiment of the present invention. The processor executes various functional applications and data processing by running the computer programs stored in the memory, that is, the above-mentioned distribution transformer high and low voltage bushing fault early warning method is realized. The memory may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory may further include a memory remotely arranged relative to the processor, and these remote memories may be connected to the mobile terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0062] The transmission device is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device can be a radio frequency (Radio Frequency, referred to as RF) module, which is used to communicate with the Internet wirelessly.

[0063] The display device may be, for example, a touch screen type liquid crystal display (LCD) and a touch display (also referred to as a "touch screen" or "touch display screen"). The liquid crystal display may enable a user to interact with a user interface of a mobile terminal. In some embodiments, the mobile terminal has a graphical user interface (GUI), and a user may interact with the GUI by finger contacts and / or gestures on a touch-sensitive surface, wherein the human-computer interaction functions here may optionally include the following interactions: creating web pages, drawing, word processing, making electronic documents, games, video conferencing, instant messaging, sending and receiving emails, call interfaces, playing digital videos, playing digital music and / or web browsing, etc. The executable instructions for executing the above human-computer interaction functions are configured / stored in a computer program product or a readable storage medium executable by one or more processors.

[0064] In another embodiment of the present application, a distribution transformer high and low voltage bushing fault warning method is also provided. The distribution transformer high and low voltage bushing fault warning device in the embodiment of the present application adopts the distribution transformer high and low voltage bushing fault warning method for warning. The distribution transformer high and low voltage bushing fault warning method comprises the following steps:

[0065] Step S10, obtaining temperature signals and vibration signals of high and low voltage bushings of the distribution transformer.

[0066] In step S10, the temperature and vibration state of the bushing are monitored in real time by temperature sensors and vibration sensors installed on the high and low voltage bushings of the distribution transformer. The sensors convert physical parameters in the environment (such as temperature and vibration amplitude) into electrical signals, which are then transmitted to the main control board of the device for further processing and analysis.

[0067] Step S12, based on the temperature signal and the vibration signal, determine the operating condition information of the high and low voltage bushings of the distribution transformer, the operating condition information including: fault condition and normal condition.

[0068] In step S12, the main control board processes the collected temperature and vibration data and determines the current working condition of the transformer bushing through the preset algorithm and threshold. If the monitored temperature or vibration signal exceeds the preset fault warning threshold, the system will determine that the transformer bushing is in a fault condition; otherwise, it will be judged as a normal condition. This process usually involves real-time analysis of data and comparison with historical data or standard conditions to improve the accuracy and reliability of the judgment.

[0069] Step S14, in response to the operating condition information being a fault condition, generating a target control strategy, the target control strategy being at least used to control the early warning component to issue an early warning.

[0070] In step S14, when the system determines that the high and low voltage bushings of the distribution transformer are in a faulty condition, the main control board will generate a specific target control strategy, which usually includes activating the early warning component, such as lighting up the early warning light or sending early warning information to the remote monitoring system through the LoRa communication module. In addition, the target control strategy may also include adjusting the monitoring frequency of the sensor, collecting more environmental data for in-depth analysis, and initiating emergency response procedures. This stage is the key in the fault early warning method. It ensures that the fault information can be identified and communicated to the relevant personnel in a timely manner so that measures can be taken quickly to prevent accidents.

[0071] Combination Figure 4 As shown, in this embodiment, through the above-mentioned early warning method, it is possible to monitor the status of the transformer bushing in real time, discover potential fault hazards in time, and provide guarantee for the stable operation of the power system. The realization of the early warning method not only depends on the accurate monitoring of the sensor, but also depends on the intelligent analysis of the main control board and the efficient data transmission of the communication module, which is the core of the early warning device function.

[0072] According to one embodiment of the present invention, there is also provided an electronic device, comprising: a memory storing an executable program; and a processor for running the program, wherein the above-mentioned distribution transformer high and low voltage bushing fault warning method is executed when the program is running.

[0073] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0074] Step S10, obtaining temperature signals and vibration signals of high and low voltage bushings of distribution transformers;

[0075] Step S12, determining the operating condition information of the high and low voltage bushings of the distribution transformer based on the temperature signal and the vibration signal, the operating condition information including: a fault condition and a normal condition;

[0076] Step S14, in response to the operating condition information being a fault condition, generating a target control strategy, the target control strategy being at least used to control the early warning component to issue an early warning.

[0077] According to one embodiment of the present invention, a computer-readable storage medium is also provided, which includes a stored executable program, wherein when the executable program is running, the device where the storage medium is located is controlled to execute the above-mentioned distribution transformer high and low voltage bushing fault warning method.

[0078] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0079] Step S10, receiving a login request from a target object, wherein the login request is sent by a target object of a different or the same job position to request to log in to a target device.

[0080] Step S12, in response to the login request, obtain the behavior information of the corresponding target object, wherein the behavior information is used to handle the target business for the object to be departed, wherein the target business includes check-in, ticket change, consignment, ticket refund, and ticket booking.

[0081] Step S14: determining the type of user group to which the target object belongs based on the behavior information.

[0082] Step S16: Generate recommendation information of commonly used function controls suitable for the target object based on the user group type.

[0083] Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store computer programs.

[0084] According to one embodiment of the present invention, a computer program product is also provided, including a computer program, and when the computer program is executed by a processor, the above-mentioned distribution transformer high and low voltage bushing fault early warning method is implemented.

[0085] Optionally, in this embodiment, the computer program product may be configured as a computer program for executing the following steps:

[0086] Step S10, receiving a login request from a target object, wherein the login request is sent by a target object of a different or the same job position to request to log in to a target device.

[0087] Step S12, in response to the login request, obtain the behavior information of the corresponding target object, wherein the behavior information is used to handle the target business for the object to be departed, wherein the target business includes check-in, ticket change, consignment, ticket refund, and ticket booking.

[0088] Step S14: determining the type of user group to which the target object belongs based on the behavior information.

[0089] Step S16: Generate recommendation information of commonly used function controls suitable for the target object based on the user group type.

[0090] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0091] Through the coordinated work of the energy collection component 10, the power supply component 20 and the early warning component 30, the real-time monitoring of the status of the high and low voltage bushings of the transformer and the early warning of faults are realized, while ensuring the energy self-sufficiency of the device and improving the safety and maintenance efficiency of the power system. This design not only reduces the dependence on external power supply, but also reduces the overall energy consumption through low-power communication modules and intelligent energy management strategies, and enhances the environmental adaptability and long-term stability of the device.

[0092] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0093] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of this application.

[0094] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0095] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A distribution transformer high and low voltage bushing fault warning device, characterized in that: include: An energy collection component (10), the energy collection component (10) comprising a transformer bushing terminal (11), the transformer bushing terminal (11) being used to be electrically connected to a transformer high-voltage and low-voltage bushing; A power supply component (20), the energy collection component (10) being electrically connected to the power supply component (20); An early warning component (30), the early warning component (30) is connected to the energy collection component (10), the early warning component (30) is electrically connected to the power supply component (20), and the early warning component (30) is at least used to monitor the operating condition information of the high and low voltage bushings of the transformer.

2. The high and low voltage bushing fault warning device for distribution transformer according to claim 1 is characterized in that: Also includes: A protective cover (40), wherein the protective cover (40) is detachably connected to the energy collection component (10), and the protective cover (40) has a receiving cavity, and the power supply component (20), the early warning component (30) and part of the energy collection component (10) are all arranged in the receiving cavity.

3. The high and low voltage bushing fault warning device for distribution transformer according to claim 1 or 2, characterized in that: The energy collection component (10) comprises: A base (12), the base (12) being connected to the transformer bushing terminal (11); A piezoelectric chip assembly (13), wherein the piezoelectric chip assembly (13) is electrically connected to the power supply assembly (20); A cantilever beam base (14), wherein the piezoelectric film subassembly (13) is connected to the base (12) via the cantilever beam base (14).

4. The high and low voltage bushing fault warning device for distribution transformer according to claim 3 is characterized in that: The piezoelectric chip subassembly (13) comprises: A first piezoelectric sheet (131), wherein the first piezoelectric sheet (131) is connected to the cantilever beam base (14); A second piezoelectric sheet (132), wherein the second piezoelectric sheet (132) is connected to the cantilever beam base (14); A support bar (133), the support bar (133) being connected to the cantilever beam base (14), the first piezoelectric sheet (131) and the second piezoelectric sheet (132) being arranged on two sides of the support bar (133) in a relative manner; A mass block (134), wherein the mass block (134) is arranged at one end of the first piezoelectric sheet (131) away from the cantilever beam base (14), and / or the mass block (134) is arranged at one end of the second piezoelectric sheet (132) away from the cantilever beam base (14).

5. The high and low voltage bushing fault warning device for distribution transformer according to claim 1 or 2, characterized in that: The power supply component (20) comprises: An energy collection circuit, wherein the energy collection circuit is electrically connected to the energy collection component (10), and the energy collection circuit is electrically connected to the early warning component (30).

6. The high and low voltage bushing fault warning device for distribution transformer according to claim 5 is characterized in that: The energy harvesting circuit comprises: A battery (21), the battery (21) being electrically connected to the energy collection component (10); A capacitor (22), the capacitor (22) is electrically connected to the energy collection component (10), the capacitor (22) is electrically connected to the battery (21), and the capacitor (22) is electrically connected to the early warning component (30).

7. The distribution transformer high and low voltage bushing fault warning device according to claim 3 is characterized in that: The early warning component (30) comprises: A main control board (31), the main control board (31) being arranged adjacent to the base (12); A temperature sensor (32), the temperature sensor (32) being disposed on the base (12), and the temperature sensor (32) being electrically connected to the main control board (31); A vibration sensor (33), the vibration sensor (33) being arranged on the base (12), and the vibration sensor (33) being electrically connected to the main control board (31); A warning light (34), the warning light (34) is electrically connected to the main control board (31).

8. The distribution transformer high and low voltage bushing fault warning device according to claim 7 is characterized in that: The early warning component (30) comprises: A communication module (35), the communication module (35) is electrically connected to the main control board (31), and the communication module (35) is used to receive and send data.

9. A distribution transformer high and low voltage bushing fault warning system, comprising the distribution transformer high and low voltage bushing fault warning device according to any one of claims 1 to 8, characterized in that: The distribution transformer high and low voltage bushing fault early warning system comprises: A gateway module (50), the gateway module (50) being electrically connected to the early warning component (30), and the gateway module (50) being used to receive and send data; A supervision subsystem (60), the supervision subsystem (60) is electrically connected to the gateway module (50).

10. A distribution transformer high and low voltage bushing fault early warning method, the distribution transformer high and low voltage bushing fault early warning device according to any one of claims 1 to 8 is controlled by using the distribution transformer high and low voltage bushing fault early warning method, characterized in that: The method comprises the following steps: Obtain temperature and vibration signals of high and low voltage bushings of distribution transformers; Based on the temperature signal and the vibration signal, determining the operating condition information of the high and low voltage bushings of the distribution transformer, the operating condition information including: a fault condition and a normal condition; In response to the operating condition information being the fault operating condition, a target control strategy is generated, and the target control strategy is at least used to control the early warning component to issue an early warning.

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