An insulation deterioration sensor based on multi-parameter fusion
By integrating multiple detection methods through a multi-parameter fusion insulation degradation sensor, the shortcomings of traditional insulation monitoring technology are overcome, enabling a comprehensive and accurate assessment and prediction of the degradation state of insulation materials, thus ensuring equipment safety.
Patent Information
- Application Number
- CN202521709177.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-12
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-12
AI Technical Summary
Traditional insulation monitoring technology relies on a single parameter, which cannot comprehensively and accurately assess the state of insulation degradation, and makes it difficult to locate defects and predict future conditions.
The insulation degradation sensor employs multi-parameter fusion, integrating the detection of decomposition product concentration, dielectric loss angle, leakage current, partial discharge, and temperature and humidity. The main control module analyzes and transmits the data, and the display and alarm modules perform real-time evaluation.
It enables a comprehensive and accurate assessment of the degradation state of insulation materials, improves detection efficiency, and can predict future degradation trends, ensuring equipment safety.
Smart Images
Figure CN224682345U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of insulation degradation detection, specifically an insulation degradation sensor based on multi-parameter fusion. Background Technology
[0002] During the operation of power equipment, insulation materials gradually deteriorate due to electrical, thermal, and chemical factors, which may lead to phenomena such as partial discharge and accumulation of gas decomposition products, ultimately causing equipment failure or even safety accidents. Traditional insulation monitoring technologies usually rely on a single parameter, which may not be able to fully reflect the complex process of insulation deterioration, accurately locate the position and type of insulation defects, and assess the future condition of the insulation materials.
[0003] Therefore, existing technologies cannot achieve a comprehensive, accurate, and real-time assessment of insulation degradation, and there is an urgent need for an insulation degradation sensor based on multi-parameter fusion. Utility Model Content
[0004] To address the shortcomings of existing technologies, this application provides an insulation degradation sensor based on multi-parameter fusion.
[0005] To address the above problems, this application provides the following technical solution: An insulation degradation sensor based on multi-parameter fusion includes: The detection module is used to detect the concentration of decomposition products of insulating materials, dielectric loss angle, whether there is leakage, whether there is partial discharge, and temperature and humidity. The main control module is communicatively connected to the detection module, receives data information from the detection module, performs data analysis, analyzes and determines the degree of degradation of the insulation material and the future degradation trend of the insulation material, and transmits the analysis results to a remote server. The display module is used to receive data information from the main control module and display the deterioration status of the insulation material; An alarm module is provided, which receives information from the main control module regarding the deterioration of the insulating material and issues an alarm. The detection module transmits data to the main control module via wired communication, the main control module transmits data to the remote server via wireless communication, the main control module transmits data to the display module via wired communication, and the main control module transmits data to the alarm module via wired communication.
[0006] Preferably, the detection module includes a decomposition product concentration detection unit, a leakage current detection unit, a discharge detection unit, and a temperature and humidity detection unit; the product concentration detection unit is used to monitor the concentration of decomposition products in the air surrounding the insulating material; the leakage current detection unit is used to detect the leakage current flowing through the grounding path of the insulating material; the discharge detection unit is used to detect partial discharge phenomena generated inside or on the surface of the insulating material; and the temperature and humidity detection unit is used to detect the temperature and humidity on the surface of the insulating material.
[0007] Preferably, the decomposition product concentration detection unit includes an infrared gas sensor.
[0008] Preferably, the leakage current detection unit includes a zero-sequence current transformer and an amplifier circuit, wherein the zero-sequence current transformer is used to monitor leakage current and the amplifier circuit is used to amplify current.
[0009] Preferably, the discharge detection unit includes an ultrasonic sensor and an ultrasonic signal conditioning circuit.
[0010] Preferably, the temperature and humidity detection unit includes a temperature and humidity sensor.
[0011] Preferably, the alarm module includes a first indicator light, a second indicator light, and a buzzer; the first indicator light is green, indicating that the insulation material is in good condition; the second indicator light is red, indicating that the insulation material has deteriorated; when deterioration is detected, the buzzer sounds an alarm.
[0012] Preferably, the wireless communication is Zigbee, LoRa, NB-IoT, or 4G / 5G cellular network communication.
[0013] Compared with the prior art, this application provides an insulation degradation sensor based on multi-parameter fusion, which has the following advantages: This sensor, by fusing partial discharge signals, gas concentration, temperature and humidity, and leakage current signals, can comprehensively analyze the degradation state of insulating materials and assess their future degradation status, which is then displayed via a display module. This application effectively improves the detection efficiency of insulating materials.
[0014] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0015] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram illustrating the principle of this application; Figure 2 This is a circuit diagram of the detection module in this application.
[0016] Attached reference numerals: 1. Detection module, 2. Main control module, 3. Display module, 4. Alarm module. Detailed Implementation
[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0018] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0019] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0020] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0021] Please see Figures 1-2 This application provides a new technical solution: an insulation degradation sensor based on multi-parameter fusion, comprising: It includes detection module 1, main control module 2, display module 3, and alarm module 4; The detection module 1 can transmit data with the main control module 2 via a wire. The main control module 2 can transmit data with a remote server via Zigbee, LoRa, NB-IoT or 4G / 5G cellular network communication. The main control module 2 can transmit data with the display module 3 via a wire. The main control module 2 can transmit data with the alarm module 4 via a wire.
[0022] The main control module 2 uses an STM series chip; in this embodiment, the main control module 2 uses a microcontroller U1.
[0023] The detection module 1 includes a decomposition product concentration detection unit 110, a leakage current detection unit 120, a discharge detection unit 130, and a temperature and humidity detection unit 140. The product concentration detection unit 110 is used to monitor the concentration of decomposition products in the air surrounding the insulating material. The leakage current detection unit 120 is used to detect the leakage current flowing through the grounding path of the insulating material. The discharge detection unit 130 is used to detect partial discharge phenomena generated inside or on the surface of the insulating material. The temperature and humidity detection unit 140 is used to detect the temperature and humidity on the surface of the insulating material.
[0024] The decomposition product concentration detection unit 110 includes an infrared gas sensor, which is connected to pins RX and TX of the microcontroller U1.
[0025] Pin 1 of the infrared gas sensor U6 is connected to VCC, and pin 3 of the infrared gas sensor U6 is grounded.
[0026] The leakage current detection unit 120 includes a zero-sequence current transformer H1 and an amplifier circuit. The zero-sequence current transformer H1 is used to monitor the current, and the amplifier circuit is used to amplify the current.
[0027] In this embodiment, pin 1 of the zero-sequence current transformer H1 is connected to pin 3 of amplifier U4.1 via series resistors R2 and R4. Pin 2 of the zero-sequence current transformer H1 is connected to pin 2 of amplifier U4.1 via series resistors R1 and R3. Pins 1 and 2 of amplifier U4.1 are connected to pin 3 via series resistor R6. Pin 3 of amplifier U4.1 is connected to one end of capacitor C4 and resistor R7. Capacitor C4 and resistor R7 are connected in parallel. The other end of capacitor C4 and resistor R7 is connected to VCC. Pin 1 of amplifier U4.1 is connected to pin PA0 of microcontroller U1 via series resistor R5.
[0028] The discharge detection unit 130 includes an ultrasonic sensor U2 and an ultrasonic signal conditioning circuit.
[0029] In this embodiment, pin 1 of the ultrasonic sensor U2 is connected to pin 3 of the preamplifier U3, pin 2 of the ultrasonic sensor U2 is grounded, one end of capacitor C5 and resistor R9 of pin 2 of the preamplifier U3 is grounded, the other end of capacitor C5 and resistor R9 is grounded, pin 1 of the preamplifier U3 is connected to pin 3 of the comparator U5.1, pin 5 of the preamplifier U3 is connected to VCC, and pin 4 of the preamplifier U3 is grounded via series resistor R8; the comparator U5.1 is used to maintain the peak value, pins 3 and 4 of the comparator U5.1 are connected in series with capacitor C6, and pin 1 of the comparator U5.1 is connected to the microcontroller PB1.
[0030] The temperature and humidity detection unit 140 includes a temperature and humidity sensor U6, and pin 2 of the temperature and humidity sensor U6 is connected to pin PB6 of the microcontroller U1.
[0031] The alarm module 4 includes a first indicator light 410, a second indicator light 420, and a buzzer 430; the first indicator light 410 is green, indicating that the insulation material is in good condition; the second indicator light 420 is red, indicating that the insulation material has deteriorated; when deterioration is detected, the buzzer 430 will sound an alarm.
[0032] In a specific embodiment, the sensing probe is placed in close contact with the surface of the insulator being measured.
[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0034] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An insulation degradation sensor based on multi-parameter fusion, characterized in that, include: The detection module is used to detect the concentration of decomposition products of insulating materials, dielectric loss angle, whether there is leakage, whether there is partial discharge, and temperature and humidity. The main control module is communicatively connected to the detection module, receives data information from the detection module, performs data analysis, analyzes and determines the degree of degradation of the insulation material and the future degradation trend of the insulation material, and transmits the analysis results to a remote server. The display module is used to receive data information from the main control module and display the deterioration status of the insulation material; An alarm module is provided, which receives information from the main control module regarding the deterioration of the insulating material and issues an alarm. The detection module transmits data to the main control module via wired communication, the main control module transmits data to the remote server via wireless communication, the main control module transmits data to the display module via wired communication, and the main control module transmits data to the alarm module via wired communication.
2. The insulation degradation sensor based on multi-parameter fusion according to claim 1, characterized in that, The detection module includes a decomposition product concentration detection unit, a leakage current detection unit, a discharge detection unit, and a temperature and humidity detection unit. The product concentration detection unit is used to monitor the concentration of decomposition products in the air surrounding the insulating material. The leakage current detection unit is used to detect the leakage current flowing through the grounding path of the insulating material. The discharge detection unit is used to detect partial discharge phenomena generated inside or on the surface of the insulating material. The temperature and humidity detection unit is used to detect the temperature and humidity on the surface of the insulating material.
3. An insulation degradation sensor based on multi-parameter fusion according to claim 2, characterized in that, The decomposition product concentration detection unit includes an infrared gas sensor.
4. An insulation degradation sensor based on multi-parameter fusion according to claim 2, characterized in that, The leakage current detection unit includes a zero-sequence current transformer and an amplifier circuit. The zero-sequence current transformer is used to monitor leakage current, and the amplifier circuit is used to amplify the current.
5. An insulation degradation sensor based on multi-parameter fusion according to claim 2, characterized in that, The discharge detection unit includes an ultrasonic sensor and an ultrasonic signal conditioning circuit.
6. An insulation degradation sensor based on multi-parameter fusion according to claim 2, characterized in that, The temperature and humidity detection unit includes a temperature and humidity sensor.
7. An insulation degradation sensor based on multi-parameter fusion according to claim 1, characterized in that, The alarm module includes a first indicator light, a second indicator light, and a buzzer; the first indicator light is green, indicating that the insulation material is in good condition; the second indicator light is red, indicating that the insulation material has deteriorated; when deterioration is detected, the buzzer sounds an alarm.
8. An insulation degradation sensor based on multi-parameter fusion according to claim 1, characterized in that, The wireless communication is Zigbee, LoRa, NB-IoT, or 4G / 5G cellular network communication.