Transformer temperature detection device for collecting noise energy

Abstract

The invention belongs to the field of transformer temperature detection, and particularly discloses a transformer temperature detection device for collecting noise energy, which comprises a temperature sensor and a hybrid energy storage system, and is characterized in that the temperature sensor is connected with a low-power-consumption control system, and the low-power-consumption control system is also connected with a wireless transmission module; the input end of the hybrid energy storage system is connected with the friction power generation unit, and the output end of the hybrid energy storage system is connected with the temperature sensor, the low-power-consumption control system and the wireless transmission module. According to the device, the collection of noise energy of the transformer is realized through a film vibration structure, the working mode of energy collection and storage can be dynamically adjusted according to the vibration intensity, the operation and maintenance cost caused by replacement of an external power supply is eliminated, and data transmission with a cloud server is realized in a wireless transmission mode; high-efficiency detection and data synchronization of the temperature of the transformer can be realized.

Description

Technical Field

[0001] The invention belongs to the field of transformer temperature detection, and in particular relates to a transformer temperature detection device for collecting noise energy. Background Art

[0002] Transformer winding temperature directly affects the aging rate of insulation materials. Traditional monitoring methods are limited by the peripheral nature of the measurement location and unreliable power supply methods. Existing wireless sensor nodes often rely on external batteries or electromagnetic induction for power. The former carries regular replacement costs, while the latter suffers from a sharp drop in efficiency in the metal shielding of the transformer. Other detection devices use vibration energy harvesting devices based on piezoelectric materials, but these devices have low output power density and are sensitive to vibration direction. Summary of the Invention

[0003] In order to address the shortcomings of the existing technology, the present invention aims to provide a transformer temperature detection device that collects noise energy. The device collects transformer noise energy through a thin film vibration structure, and can dynamically adjust the working mode of energy collection and storage according to the vibration intensity, eliminating the operation and maintenance costs caused by the replacement of external power supplies. It also uses wireless transmission to realize data transmission with a cloud server, which can achieve efficient detection and data synchronization of transformer temperature.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: A transformer temperature detection device for collecting noise energy includes a temperature sensor and a hybrid energy storage system, wherein the temperature sensor is connected to a low-power control system, and the low-power control system is also connected to a wireless transmission module; the input end of the hybrid energy storage system is connected to a friction power generation unit, and the output end is respectively connected to the temperature sensor, the low-power control system and the wireless transmission module; the temperature sensor is used to collect temperature data of the transformer; the friction power generation unit is used to collect operating noise of the transformer and convert mechanical vibration into electrical energy; the hybrid energy storage system is used to rectify and stabilize the electrical energy generated by the friction power generation unit for storage and output a stable voltage; the low-power control system is used to analyze and process data from the temperature sensor and send it to a cloud server; the wireless transmission module is used to realize wireless signal transmission from the low-power control system to the cloud server.

[0005] Furthermore, the friction power generation unit adopts a vertical contact separation friction generator.

[0006] Furthermore, the hybrid energy storage system includes an adaptive power management circuit, a fast charging and discharging capacitor and a high-density energy storage element, and the fast charging and discharging capacitor and the high-density energy storage element are connected to the adaptive power management circuit; the adaptive power management circuit is used for voltage adaptive regulation management and controls the sleep and wake-up of the entire system; the fast charging and discharging capacitor is used to improve energy capture efficiency and smooth voltage fluctuations through fast charging and discharging; the high-density energy storage element is used to store electrical energy.

[0007] Furthermore, when the energy storage voltage of the high-density energy storage element reaches a threshold, the adaptive power management circuit wakes up the low-power control system; when it is lower than the threshold, the low-power control system enters a deep sleep mode.

[0008] Furthermore, the control method of the transformer temperature detection device includes the following steps: S1. The mechanical vibration caused by transformer noise drives the triboelectric generator to generate current; S2. The electrical energy generated by the triboelectric generator is rectified and stabilized by the adaptive power management circuit and then stored in a high-density energy storage element; S3. When the energy storage voltage of the high-density energy storage element reaches a threshold, the adaptive power management circuit wakes up the low-power control system; S4. The temperature sensor collects temperature data and sends it to the low-power control system; S5. The low-power control system sends the processed temperature data to the cloud server via the wireless transmission module; S5. When the energy storage voltage of the high-density energy storage element is lower than the threshold, the low-power control system enters the deep sleep mode.

[0009] The beneficial effects of the present invention are: 1. The proposed transformer temperature detection device, which collects noise energy and is directly implanted in the winding area, can obtain real temperature data, significantly improving measurement effectiveness. A special packaging design ensures reliability in harsh conditions such as oil immersion and strong electromagnetic fields, enhancing environmental adaptability. It also eliminates the operational and maintenance costs associated with replacing an external power supply, reducing overall lifecycle costs.

[0010] 2. This invention utilizes a vibration energy harvesting mechanism: transformer noise energy is harvested through a thin film vibration structure. It also provides an environmentally adaptive energy supply strategy: the energy harvesting and storage operating mode can be dynamically adjusted according to vibration intensity. Furthermore, each functional module adopts a stacked packaging design to reduce space occupancy and achieve a compact system integration design. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a control flow chart of the present invention.

[0012] Figure numerals: 1. Triboelectric power generation unit; 2. Hybrid energy storage system; 3. Low power consumption control system; 4. Temperature sensor. DETAILED DESCRIPTION

[0013] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of application of the present invention.

[0014] like Figure 1 As shown, this invention proposes a transformer temperature detection device that collects noise energy. Directly implanted in the winding area, this device acquires real temperature data, significantly improving measurement effectiveness. A special packaging design ensures reliability in harsh conditions such as oil immersion and strong electromagnetic fields, enhancing environmental adaptability. It also eliminates the operational and maintenance costs associated with replacing an external power supply, reducing overall lifecycle costs.

[0015] The transformer temperature detection device specifically includes a temperature sensor 4 and a hybrid energy storage system 2. The temperature sensor 4 is connected to a low-power control system 3, and the low-power control system 3 is also connected to a wireless transmission module; the input end of the hybrid energy storage system 2 is connected to the friction power generation unit 1, and the output end is respectively connected to the temperature sensor 4, the low-power control system 3 and the wireless transmission module.

[0016] The temperature sensor 4 is used to collect transformer temperature data. The triboelectric power generation unit 1 is used to collect transformer operating noise and convert mechanical vibrations into electrical energy. In this embodiment, the triboelectric power generation unit 1 utilizes a vertical contact-separation triboelectric generator. This power generation module, consisting of a vibrating membrane and metal electrodes, collects transformer noise energy. The transformer noise drives the membrane to vibrate, converting the mechanical vibration into effective contact-separation motion, thereby generating current.

[0017] Hybrid energy storage system 2 is used to rectify and stabilize the electrical energy generated by triboelectric unit 1 for storage and output of a stable voltage. Hybrid energy storage system 2 includes an adaptive power management circuit, fast-charging and discharging capacitors, and a high-density energy storage element. The fast-charging and discharging capacitors and the high-density energy storage element are connected to the adaptive power management circuit. The adaptive power management circuit is responsible for voltage adaptive regulation and control of the entire system's sleep and wakeup modes. The fast-charging and discharging capacitors are used to improve energy capture efficiency and smooth voltage fluctuations through rapid charging and discharging. The high-density energy storage element is used to store electrical energy. When the energy storage voltage of the high-density energy storage element reaches a threshold, the adaptive power management circuit wakes up low-power control system 3. If the voltage falls below the threshold, low-power control system 3 enters deep sleep mode.

[0018] The low-power control system 3 is used to analyze and process the data from the temperature sensor 4 and send it to the cloud server. The wireless transmission module is used to realize wireless signal transmission from the low-power control system 3 to the cloud server.

[0019] like Figure 2 As shown, the present invention also provides a control method for the above transformer temperature detection device, which specifically includes the following steps: S1. Mechanical vibration caused by transformer noise drives the triboelectric generating unit 1 to generate current; S2. The electric energy generated by the triboelectric power generation unit 1 is rectified and stabilized by the adaptive power management circuit and then stored in a high-density energy storage element; S3. When the energy storage voltage of the high-density energy storage element reaches the threshold, the adaptive power management circuit wakes up the low-power control system 3; S4. The temperature sensor 4 collects temperature data and sends it to the low-power control system 3; S5 low-power control system 3 sends the processed temperature data to the cloud server via the wireless transmission module; S5. When the energy storage voltage of the high-density energy storage element is lower than the threshold, the low-power control system 3 enters the deep sleep mode.

[0020] The present invention adopts a vibration energy harvesting mechanism: transformer noise energy is harvested through a thin film vibration structure; an environmentally adaptive energy supply strategy is also provided: the energy harvesting and storage working mode can be dynamically adjusted according to the vibration intensity; and each functional module adopts a stacked packaging design to reduce space occupancy and realize a compact system integration design.

[0021] Obviously, the embodiments described above are only some of the embodiments of the present application, rather than all of the embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present application specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present application.

Claims

1. A transformer temperature detection device for collecting noise energy, characterized in that: It includes a temperature sensor and a hybrid energy storage system, the temperature sensor is connected to a low-power control system, and the low-power control system is also connected to a wireless transmission module; the input end of the hybrid energy storage system is connected to a friction power generation unit, and the output end is respectively connected to the temperature sensor, the low-power control system and the wireless transmission module; the temperature sensor is used to collect the temperature data of the transformer; the friction power generation unit is used to collect the working noise of the transformer and convert mechanical vibration into electrical energy; the hybrid energy storage system is used to rectify and stabilize the electrical energy generated by the friction power generation unit for storage, and output a stable voltage; the low-power control system is used to analyze and process the data from the temperature sensor and send it to the cloud server; the wireless transmission module is used to realize wireless signal transmission from the low-power control system to the cloud server.

2. The transformer temperature detection device for collecting noise energy according to claim 1, characterized in that: The friction power generation unit adopts a vertical contact separation type friction generator.

3. The transformer temperature detection device for collecting noise energy according to claim 1, characterized in that: The hybrid energy storage system includes an adaptive power management circuit, a fast charging and discharging capacitor and a high-density energy storage element, and the fast charging and discharging capacitor and the high-density energy storage element are connected to the adaptive power management circuit; the adaptive power management circuit is used for voltage adaptive regulation management and controls the sleep and wake-up of the entire system; the fast charging and discharging capacitor is used to improve energy capture efficiency and smooth voltage fluctuations through rapid charging and discharging; the high-density energy storage element is used to store electrical energy.

4. The transformer temperature detection device for collecting noise energy according to claim 3, characterized in that: When the energy storage voltage of the high-density energy storage element reaches a threshold, the adaptive power management circuit wakes up the low-power control system; when it is lower than the threshold, the low-power control system enters a deep sleep mode.

5. The transformer temperature detection device for collecting noise energy according to claim 4, characterized in that: The control method of the transformer temperature detection device comprises the following steps: S1. Mechanical vibration caused by transformer noise drives the triboelectric generator to generate current; S2. The electrical energy generated by the triboelectric generator is rectified and stabilized by the adaptive power management circuit and then stored in a high-density energy storage element; S3. When the energy storage voltage of the high-density energy storage element reaches a threshold, the adaptive power management circuit wakes up the low-power control system; S4. The temperature sensor collects temperature data and sends it to the low-power control system; S5. The low-power control system sends the processed temperature data to the cloud server via the wireless transmission module; S5. When the energy storage voltage of the high-density energy storage element is lower than the threshold, the low-power control system enters the deep sleep mode.

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