Excitation knife switch infrared temperature measurement, alarm and heat dissipation linkage control device and method

Abstract

The invention relates to the technical field of excitation systems, in particular to an excitation disconnecting link infrared temperature measurement, alarm and heat dissipation linkage control device and method. The device comprises an infrared temperature measurement module linked with a barrier gate cabinet of an excitation system, an alarm module and a heat dissipation module, wherein the infrared temperature measurement module comprises a probe pointing to the position of a disconnecting link contact; the alarm module comprises a sound alarm, a light alarm and a remote alarm signal sending device; the heat dissipation module comprises a fan, a radiator and a cooling water circulation system. According to the invention, by integrating the infrared temperature measurement, alarm and heat dissipation linkage control device, real-time monitoring of the temperature of the disconnecting link contact of the excitation system is realized; once the temperature is abnormal, an alarm is triggered immediately, and the alarm is given to an operator in multiple modes, so that the timeliness and effectiveness of information transmission are ensured, faults caused by overheating of equipment are effectively prevented, and the safety and reliability of the system are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of excitation systems, and particularly to an infrared temperature measurement, alarm and heat dissipation linkage control device and method for an excitation disconnect switch. Background Art

[0002] In an excitation system, the temperature of the disconnect switch contact is a key indicator for measuring the operating state of the equipment. Traditional manual inspections or simple temperature measurement tools are inefficient and difficult to detect and handle temperature anomalies in a timely manner. In the prior art, although there is an infrared remote wired alarm device disclosed in CN104677502A, which can monitor the temperature of the high-voltage disconnector contact through an infrared temperature sensor and trigger an alarm through a control cable when the temperature exceeds the limit, there are still deficiencies: one is that it cannot automatically detect the temperature and start heat dissipation, or the heat dissipation method is single and the effect is not good; the other is the lack of real-time monitoring ability. Even if there is monitoring, it cannot quickly alarm the operator in multiple ways when the temperature is abnormal. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art and provide an infrared temperature measurement, alarm and heat dissipation linkage control device and method for an excitation disconnect switch.

[0004] The technical solution adopted by the present invention is as follows: An infrared temperature measurement, alarm and heat dissipation linkage control device for an excitation disconnect switch includes an infrared temperature measurement module, an alarm module and a heat dissipation module that are linked to the switch cabinet of the excitation system, wherein: The infrared temperature measurement module is used to accurately measure the temperature of the disconnect switch contact, including a probe pointing to the position of the disconnect switch contact. The probe is connected to a display screen through a network cable, and transmits real-time temperature data to the display screen for display; The alarm module is used to send an alarm signal when the temperature of the disconnect switch contact exceeds a preset threshold, including a sound alarm, a light alarm and a remote alarm signal sending device. When the infrared temperature measurement module detects that the temperature of the disconnect switch contact rises abnormally, the alarm module is immediately activated to remind the operator to pay attention and take corresponding measures; The heat dissipation module is used to start the heat dissipation function to reduce the temperature and prevent equipment damage when the temperature of the disconnect switch contact is too high, including a fan, a radiator, and a cooling water circulation system; when the infrared temperature measurement module detects that the temperature of the disconnect switch contact reaches or exceeds the heat dissipation start threshold, the heat dissipation module will automatically start, and dissipate the heat in the switch cabinet by increasing air circulation, heat dissipation through heat sinks or cooling water circulation; the heat dissipation module is linked to the alarm module. When the heat dissipation function cannot effectively reduce the temperature, it triggers the alarm module to send a higher-level alarm signal to remind the operator to take emergency measures.

[0005] This technical solution realizes real-time monitoring, abnormal alarm and automatic heat dissipation of the temperature of the knife switch contacts in the excitation system by integrating an infrared temperature measurement, alarm and heat dissipation linkage control device, ensuring the safe operation of the equipment. Specifically, the non-contact temperature measurement of the infrared temperature measurement module is used to capture temperature data in real time through a probe pointing at the knife switch contacts, and the data is efficiently transmitted to the display screen through a network cable to ensure the accuracy and real-time nature of the temperature data; when the infrared temperature measurement module detects that the temperature of the knife switch contacts rises abnormally and exceeds the preset high-temperature alarm threshold, the alarm module is immediately activated, integrating a sound alarm, a light alarm and a remote alarm signal sending device to send an alarm to the operator in multiple ways to ensure the timeliness and effectiveness of information transmission; when the infrared temperature measurement module detects that the temperature of the knife switch contacts reaches or exceeds the heat dissipation start threshold, the heat dissipation module will be automatically activated, and the heat in the knife switch cabinet will be effectively dissipated through multiple methods such as increasing air circulation with a fan, heat dissipation with a heat sink or cooling water circulation, thereby preventing the equipment from being damaged due to excessive temperature; the linkage between the heat dissipation module and the alarm module enhances the safety of the system. When the heat dissipation function cannot effectively reduce the temperature, the heat dissipation module will trigger the alarm module to send a higher-level alarm signal to remind the operator to take emergency measures.

[0006] In addition, the above-mentioned infrared temperature measurement, alarm and heat dissipation linkage control device and method for the excitation knife switch according to the present invention also have the following additional technical features: According to an embodiment of the present invention, the excitation system steps down the 22KV voltage at the generator outlet and then conducts three-phase full-wave rectification through an excitation rectifier cabinet. The rectified direct current passes through the excitation carbon brush to the rotor winding to establish a magnetic field for the generator.

[0007] This technical solution steps down and rectifies the high voltage at the generator outlet to direct current through the excitation system, supplies it to the rotor winding of the generator to establish a magnetic field, and maintains the normal operation of the generator.

[0008] According to an embodiment of the present invention, the excitation system adjusts the conduction angle of the thyristor according to the changes in the voltage, current and excitation parameters collected at the generator outlet, and changes the magnitude of the excitation output current according to the operating conditions of the generator.

[0009] This technical solution adjusts the conduction angle of the thyristor according to the operating conditions of the generator through the excitation system, thereby dynamically adjusting the magnitude of the excitation output current and optimizing the performance of the generator.

[0010] According to an embodiment of the present invention, the infrared temperature measurement module uses infrared temperature measurement technology to perform non-contact measurement of the temperature of the excitation system. The infrared temperature measurement module obtains the temperature information of the knife switch contacts in real time, thereby judging the usage of the knife switch contacts. When the internal temperature of the excitation system exceeds the temperature set by the infrared temperature measurement module, the alarm module issues an alarm. After the operator hears the alarm sound, they immediately go to cool and dissipate the heat inside the excitation system.

[0011] This technical solution uses the non-contact measurement technology of the infrared temperature measurement module to monitor the temperature of the knife switch contact in real time, trigger an alarm when the temperature is too high, guide the operator to cool down and dissipate heat in time, and protect the equipment.

[0012] According to an embodiment of the present invention, the infrared temperature measurement module includes two temperature measurement ranges, -20°C to 150°C and 0°C to 550°C, calibrated over the entire temperature range, with a temperature measurement accuracy range of ±2°C or a reading accuracy range of ±2%.

[0013] This technical solution ensures that the infrared temperature measurement module can accurately reflect the actual temperature of the knife switch contact under different ambient temperatures by providing two temperature measurement ranges and high-precision temperature measurement.

[0014] According to an embodiment of the present invention, the infrared temperature measurement module is equipped with a display screen and is connected to the monitoring system through a communication device.

[0015] This technical solution realizes the local display of temperature data and the connection to the remote monitoring system through the display screen and communication device equipped with the infrared temperature measurement module, facilitating data management and analysis.

[0016] According to an embodiment of the present invention, it further includes a controller that acquires the historical ambient temperature of the knife switch contact and the historical real-time contact temperature corresponding to the historical ambient temperature; fits the historical ambient temperature and the historical real-time contact temperature to obtain a temperature influence curve; and uses this temperature influence curve as the corresponding temperature influence model.

[0017] This technical solution establishes a temperature influence model through the controller, predicts the temperature change trend based on the historical ambient temperature and contact temperature data, and provides a scientific basis for equipment maintenance.

[0018] According to an embodiment of the present invention, the display screen is connected to the controller and is used to display the alarm information output by the alarm module and the temperature information received by the controller.

[0019] This technical solution displays the alarm information and temperature data through the display screen, providing an intuitive equipment status monitoring interface for the operator and facilitating a quick response to abnormal situations.

[0020] According to an embodiment of the present invention, the monitoring system receives the real-time temperature data from the infrared temperature measurement module, the alarm signal from the alarm module, and the working status information of the heat dissipation module, judges whether the temperature of the knife switch contact is within the normal range by comparing historical data and set thresholds; once an abnormality is detected, it immediately triggers an early warning mechanism and sends an early warning message to the operator; and can view the temperature data, alarm status, and working conditions of the excitation knife switch in real time through the display screen.

[0021] This technical solution receives and analyzes data from each module through a monitoring system to achieve real-time monitoring and early warning of temperature anomalies, while providing comprehensive equipment status information to support remote monitoring and decision-making.

[0022] To achieve the above object, the present invention also provides a method for linkage control of infrared temperature measurement, alarm and heat dissipation of an excitation disconnect switch.

[0023] A method for linkage control of infrared temperature measurement, alarm and heat dissipation of an excitation disconnect switch includes: S1. System initialization: The switch cabinet, infrared temperature measurement module, alarm module and heat dissipation module of the excitation system are correctly installed and connected to the corresponding power supply and communication network; the probe of the infrared temperature measurement module is accurately aligned with the disconnect switch contact to ensure real-time capture of the contact temperature data; the preset thresholds of the alarm module and heat dissipation module are configured according to actual requirements, including high-temperature alarm temperature and heat dissipation start temperature; S2. The infrared temperature measurement module starts to work: The probe of the infrared temperature measurement module starts to measure the temperature of the disconnect switch contact in real time and transmits the data to the display screen; the display screen receives and displays the temperature data and sends the temperature data to the temperature data processing unit for analysis; S3. Temperature data monitoring and judgment: The temperature data processing unit continuously monitors the temperature data received from the infrared temperature measurement module; if the temperature data exceeds the preset high-temperature alarm threshold, the temperature data processing unit will trigger the start condition of the alarm module; S4. The alarm module starts: When the temperature data processing unit determines that the temperature exceeds the alarm threshold, the alarm module will start and emit a sound or light signal to alert the operator; after receiving the alarm, the operator immediately takes necessary measures to check and handle the abnormal situation; S5. The heat dissipation module starts: If the temperature data processing unit determines that the temperature exceeds the heat dissipation start threshold, the heat dissipation module will start; the heat dissipation module reduces the temperature of the switch cabinet of the excitation system and its surrounding environment through a fan and heat sink; S6. Monitoring and adjustment: The infrared temperature measurement module continues to measure the temperature in real time and sends the data to the display screen and the temperature data processing unit; the temperature data processing unit continuously monitors the state of the system according to the latest temperature data and adjusts the working state of the alarm module and heat dissipation module as needed; if the temperature drops to the safe range, the heat dissipation module will stop working; if the temperature continues to rise and exceeds a higher alarm threshold, manual intervention is used to handle the abnormal situation.

[0024] This technical solution realizes effective monitoring and safety management of the temperature of the excitation knife switch. Specifically, through system initialization, ensure that all relevant modules are correctly installed and configured, providing a basis for subsequent temperature monitoring and control; the infrared temperature measurement module starts working, capturing the temperature data of the knife switch contacts in real time, and displaying and analyzing them through the display screen and the temperature data processing unit; the temperature data processing unit continuously monitors these data, and once it is found that the temperature exceeds the preset high temperature alarm threshold, it immediately triggers the alarm module to alert the operator through sound or light signals so that timely measures can be taken; if the temperature exceeds the heat dissipation start threshold, the heat dissipation module will automatically start, reduce the temperature by physical means, and protect the safety of the equipment; through continuous monitoring and adjustment, the system can dynamically adjust the working status of the alarm and heat dissipation modules according to the latest temperature data to ensure that the equipment operates within a safe range.

[0025] Compared with the prior art, the present invention has the following beneficial effects: (1) By integrating infrared temperature measurement, alarm and heat dissipation linkage control devices, real-time monitoring of the temperature of the excitation system switch contact is achieved; once the temperature is abnormal, the alarm is triggered immediately, and the operator is alerted in various ways to ensure the timeliness and effectiveness of information transmission, effectively prevent equipment failures caused by overheating, and improve the safety and reliability of the system.

[0026] (2) It can automatically detect the temperature and start the cooling module to effectively dissipate heat through fans, heat sinks and other means to prevent equipment damage; the cooling and alarm modules are linked to issue a higher level alarm when the cooling effect is not good, guiding the operator to take emergency measures, thereby realizing intelligent management and safe control of equipment temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a flow diagram of the method of the present invention.

[0028] Figure 2 is a cross-sectional view of a display screen of the method of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1 like Figure 1 and Figure 2As shown in the figure, this embodiment provides an infrared temperature measurement, alarm and heat dissipation linkage control device for the excitation knife switch, including an infrared temperature measurement module, an alarm module and a heat dissipation module that are linked to the switch cabinet of the excitation system, where: The infrared temperature measurement module is used to accurately measure the temperature of the knife switch contact. It includes a probe pointing to the position of the knife switch contact. The probe is connected to the display screen through a network cable, and transmits real-time temperature data to the display screen for display. The alarm module is used to send an alarm signal when the temperature of the knife switch contact exceeds the preset threshold. It includes a sound alarm, a light alarm and a remote alarm signal sending device. When the infrared temperature measurement module detects that the temperature of the knife switch contact rises abnormally, the alarm module is immediately activated to remind the operator to pay attention and take corresponding measures. The heat dissipation module is used to activate the heat dissipation function to reduce the temperature and prevent equipment damage when the temperature of the knife switch contact is too high. It includes a fan, a radiator and a cooling water circulation system. When the infrared temperature measurement module detects that the temperature of the knife switch contact reaches or exceeds the heat dissipation start threshold, the heat dissipation module will automatically start, and dissipate the heat in the switch cabinet by increasing air circulation, heat dissipation through heat sinks or cooling water circulation. The heat dissipation module is linked with the alarm module. When the heat dissipation function cannot effectively reduce the temperature, it triggers the alarm module to send a higher-level alarm signal to remind the operator to take emergency measures.

[0031] As Figure 1 and Figure 2 shown, through the integration of the infrared temperature measurement, alarm and heat dissipation linkage control device, this technical solution realizes the real-time monitoring, abnormal alarm and automatic heat dissipation of the temperature of the knife switch contact of the excitation system, ensuring the safe operation of the equipment. Specifically, the non-contact temperature measurement of the infrared temperature measurement module is used to capture temperature data in real time through the probe pointing to the knife switch contact, and efficiently transmit it to the display screen through the network cable to ensure the accuracy and real-time nature of the temperature data. When the infrared temperature measurement module detects that the temperature of the knife switch contact rises abnormally and exceeds the preset high-temperature alarm threshold, the alarm module is immediately activated, integrating a sound alarm, a light alarm and a remote alarm signal sending device, and sending an alarm to the operator in multiple ways to ensure the timeliness and effectiveness of information transmission. When the infrared temperature measurement module detects that the temperature of the knife switch contact reaches or exceeds the heat dissipation start threshold, the heat dissipation module will automatically start, and effectively dissipate the heat in the switch cabinet through multiple ways such as increasing air circulation with a fan, heat dissipation through heat sinks or cooling water circulation, thereby preventing equipment damage due to excessive temperature. The linkage between the heat dissipation module and the alarm module enhances the security of the system. When the heat dissipation function cannot effectively reduce the temperature, the heat dissipation module will trigger the alarm module to send a higher-level alarm signal to remind the operator to take emergency measures.

[0032] In addition, the above-mentioned infrared temperature measurement, alarm and heat dissipation linkage control device and method for the excitation knife switch according to the present invention also have the following additional technical features: According to an embodiment of the present invention, after stepping down the 22 KV voltage at the generator outlet, the excitation system conducts three-phase full-wave rectification through an excitation rectifier cabinet, and the rectified direct current passes through the excitation carbon brushes to the rotor winding to establish a magnetic field for the generator.

[0033] This technical solution steps down and rectifies the high voltage at the generator outlet into direct current through the excitation system, supplies it to the generator rotor winding to establish a magnetic field, and maintains the normal operation of the generator.

[0034] According to an embodiment of the present invention, the excitation system adjusts the conduction angle of the thyristor according to the changes in the voltage, current, and excitation parameters collected at the generator outlet, and changes the magnitude of the excitation output current according to the operating conditions of the generator.

[0035] This technical solution adjusts the conduction angle of the thyristor according to the operating conditions of the generator through the excitation system, thereby dynamically adjusting the magnitude of the excitation output current and optimizing the performance of the generator.

[0036] According to an embodiment of the present invention, the infrared temperature measurement module uses infrared temperature measurement technology to perform non-contact measurement of the temperature of the excitation system. The infrared temperature measurement module obtains the temperature information of the knife switch contact in real time, thereby judging the usage of the knife switch contact. When the internal temperature of the excitation system exceeds the temperature set by the infrared temperature measurement module, the alarm module issues an alarm. After the operator hears the alarm sound, they immediately go to cool down and dissipate heat inside the excitation system.

[0037] This technical solution uses the non-contact measurement technology of the infrared temperature measurement module to monitor the temperature of the knife switch contact in real time, triggers an alarm when the temperature is too high, and guides the operator to cool down and dissipate heat in time to protect the equipment.

[0038] According to an embodiment of the present invention, the infrared temperature measurement module includes two temperature measurement ranges, -20°C to 150°C and 0°C to 550°C, calibrated over the entire temperature range, with a temperature measurement accuracy range of ±2°C or a reading accuracy range of ±2%.

[0039] This technical solution ensures that the infrared temperature measurement module can accurately reflect the actual temperature of the knife switch contact under different ambient temperatures by providing two temperature measurement ranges and high-precision temperature measurement.

[0040] According to an embodiment of the present invention, the infrared temperature measurement module is equipped with a display screen and is connected to the monitoring system through a communication device.

[0041] This technical solution realizes the local display of temperature data and the connection to the remote monitoring system through the display screen and communication device equipped with the infrared temperature measurement module, facilitating data management and analysis.

[0042] According to an embodiment of the present invention, it further includes a controller that acquires the historical ambient temperature of the knife-switch contact and the historical real-time contact temperature corresponding to the historical ambient temperature; fits the historical ambient temperature and the historical real-time contact temperature to obtain a temperature influence curve; and uses this temperature influence curve as the corresponding temperature influence model.

[0043] This technical solution establishes a temperature influence model through the controller, predicts the temperature change trend based on the historical ambient temperature and contact temperature data, and provides a scientific basis for equipment maintenance.

[0044] According to an embodiment of the present invention, the display screen is connected to the controller and is used to display the alarm information output by the alarm module and the temperature information received by the controller.

[0045] This technical solution displays the alarm information and temperature data through the display screen, provides an intuitive equipment status monitoring interface for the operator, and facilitates quick response to abnormal situations.

[0046] According to an embodiment of the present invention, the monitoring system receives the real-time temperature data from the infrared temperature measurement module, the alarm signal from the alarm module, and the working status information of the heat dissipation module, judges whether the temperature of the knife-switch contact is within the normal range by comparing the historical data and the set threshold; once an abnormality is found, it immediately triggers an early warning mechanism and sends an early warning message to the operator; the temperature data, alarm status, and working conditions of the excitation knife-switch can be viewed in real time through the display screen.

[0047] This technical solution receives and analyzes the data from each module through the monitoring system, realizes the real-time monitoring and early warning of temperature abnormalities, and at the same time provides comprehensive equipment status information to support remote monitoring and decision-making.

[0048] Embodiment 2 Based on Embodiment 1, as Figure 1 and Figure 2 shown, this embodiment provides a method for the linkage control of infrared temperature measurement, alarm, and heat dissipation of an excitation knife-switch, including: S1. System initialization: The gate cabinet, infrared temperature measurement module, alarm module, and heat dissipation module of the excitation system are correctly installed and connected to the corresponding power supply and communication network; the probe of the infrared temperature measurement module is accurately aligned with the knife-switch contact to ensure real-time capture of the contact temperature data; the preset thresholds of the alarm module and the heat dissipation module are configured according to actual needs, including the high-temperature alarm temperature and the heat dissipation start temperature. S2. The infrared temperature measurement module starts to work: The probe of the infrared temperature measurement module starts to measure the temperature of the knife-switch contact in real time and transmits the data to the display screen; the display screen receives and displays the temperature data and sends the temperature data to the temperature data processing unit for analysis. S3. Temperature Data Monitoring and Judgment: The temperature data processing unit continuously monitors the temperature data received from the infrared temperature measurement module; if the temperature data exceeds the preset high-temperature alarm threshold, the temperature data processing unit will trigger the startup condition of the alarm module; S4. Alarm Module Startup: When the temperature data processing unit determines that the temperature exceeds the alarm threshold, the alarm module will start, emitting a sound or light signal to alert the operator; after receiving the alarm, the operator immediately takes necessary measures to check and handle the abnormal situation; S5. Cooling Module Startup: If the temperature data processing unit determines that the temperature exceeds the cooling startup threshold, the cooling module will start; the cooling module reduces the temperature of the excitation system barrier cabinet and its surrounding environment through fans and heat sinks; S6. Monitoring and Adjustment: The infrared temperature measurement module continues to measure the temperature in real time and sends the data to the display screen and the temperature data processing unit; the temperature data processing unit continuously monitors the status of the system based on the latest temperature data and adjusts the working status of the alarm module and the cooling module as needed; if the temperature drops to the safe range, the cooling module will stop working; if the temperature continues to rise and exceeds a higher alarm threshold, manual intervention is used to handle the abnormal situation.

[0049] This technical solution realizes the effective monitoring and safety management of the excitation switch temperature. Specifically, through system initialization, it ensures that all relevant modules are correctly installed and configured, providing a basis for subsequent temperature monitoring and control; the infrared temperature measurement module starts to work, capturing the temperature data of the switch contacts in real time and displaying and analyzing it through the display screen and the temperature data processing unit; the temperature data processing unit continuously monitors this data, and once it finds that the temperature exceeds the preset high-temperature alarm threshold, it immediately triggers the alarm module to alert the operator through a sound or light signal so that timely measures can be taken; if the temperature exceeds the cooling startup threshold, the cooling module will automatically start, reducing the temperature by physical means to protect the safety of the equipment; through continuous monitoring and adjustment, the system can dynamically adjust the working status of the alarm and cooling modules according to the latest temperature data to ensure that the equipment operates within a safe range.

[0050] Although the present invention has been described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, those of ordinary skill in the art make various equivalent modifications or substitutions to the embodiments of the present invention, and all such modifications or substitutions should fall within the scope of the present invention / Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An infrared temperature measurement, alarm and heat dissipation linkage control device for an excitation disconnect switch, characterized in that, It includes an infrared temperature measurement module, an alarm module, and a heat dissipation module that are linked to the breaker cabinet of the excitation system, where: The infrared temperature measurement module is used to accurately measure the temperature of the knife switch contact. It includes a probe pointing to the position of the knife switch contact. The probe is connected to the display screen through a network cable to transmit real-time temperature data to the display screen for display; The alarm module is used to send an alarm signal when the temperature of the knife switch contact exceeds the preset threshold. It includes a sound alarm, a light alarm, and a remote alarm signal sending device. When the infrared temperature measurement module detects that the temperature of the knife switch contact rises abnormally, the alarm module is immediately activated to remind the operator to pay attention and take corresponding measures; The heat dissipation module is used to start the heat dissipation function when the temperature of the knife switch contact is too high to reduce the temperature and prevent equipment damage. It includes a fan, a radiator, and a cooling water circulation system; when the infrared temperature measurement module detects that the temperature of the knife switch contact reaches or exceeds the heat dissipation start threshold, the heat dissipation module will automatically start, and the heat inside the breaker cabinet will be dissipated by increasing air circulation, heat dissipation through the heat sink, or cooling water circulation; the heat dissipation module is linked to the alarm module. When the heat dissipation function cannot effectively reduce the temperature, the alarm module is triggered to send a higher-level alarm signal to remind the operator to take emergency measures.

2. The infrared temperature measurement, alarm and heat dissipation linkage control device for the excitation disconnect switch according to claim 1, characterized in that, The excitation system steps down the 22KV voltage at the generator outlet and then passes it to the excitation rectifier cabinet for three-phase full-wave rectification. The rectified direct current passes through the excitation carbon brush to the rotor winding to establish a magnetic field for the generator.

3. The infrared temperature measurement, alarm and heat dissipation linkage control device for the excitation disconnect switch according to claim 1, characterized in that, The excitation system adjusts the conduction angle of the thyristor according to the changes in the collected generator outlet voltage, current, and excitation parameters, and changes the magnitude of the excitation output current according to the operating conditions of the generator.

4. The infrared temperature measurement, alarm and heat dissipation linkage control device for the excitation disconnect switch according to claim 1, characterized in that, The infrared temperature measurement module uses infrared temperature measurement technology to perform non-contact measurement of the temperature of the excitation system. The infrared temperature measurement module obtains the temperature information of the knife switch contact in real time, thereby judging the usage of the knife switch contact. When the internal temperature of the excitation system exceeds the temperature set by the infrared temperature measurement module, the alarm module issues an alarm. After the operator hears the alarm sound, they immediately go to cool down and dissipate heat inside the excitation system.

5. The infrared temperature measurement, alarm and heat dissipation linkage control device for the excitation disconnect switch according to claim 1, characterized in that, The infrared temperature measurement module includes two temperature measurement ranges, -20°C to 150°C and 0°C to 550°C, calibrated over the entire temperature range. The temperature measurement accuracy range is ±2°C or the reading accuracy range is ±2%.

6. The infrared temperature measurement, alarm and heat dissipation linkage control device for the excitation knife switch according to claim 1, characterized in that, The infrared temperature measurement module is equipped with a display screen and is connected to the monitoring system through a communication device.

7. The infrared temperature measurement, alarm and heat dissipation linkage control device for the excitation disconnect switch according to claim 6, characterized in that, It also includes a controller that obtains the historical ambient temperature of the knife switch contact and the historical real-time contact temperature corresponding to the historical ambient temperature; fits the historical ambient temperature and the historical real-time contact temperature to obtain a temperature influence curve; and uses this temperature influence curve as the corresponding temperature influence model.

8. The infrared temperature measurement, alarm and heat dissipation linkage control device for the excitation disconnect switch according to claim 7, characterized in that, The display screen, which is connected to the controller, is used to display the alarm information output by the alarm module and the temperature information received by the controller.

9. The infrared temperature measurement, alarm and heat dissipation linkage control device for the excitation knife switch according to claim 6, characterized in that, The monitoring system receives real-time temperature data from the infrared temperature measurement module, alarm signals from the alarm module, and working status information of the heat dissipation module. By comparing historical data and set thresholds, it determines whether the temperature of the knife switch contact is within the normal range. Once an abnormality is detected, it immediately triggers the early warning mechanism and sends early warning information to the operator. The temperature data, alarm status, and working conditions of the heat dissipation module of the excitation knife switch can be viewed in real time through the display screen.

10. A method for linkage control of infrared temperature measurement, alarm and heat dissipation of an excitation knife switch, which uses the infrared temperature measurement, alarm and heat dissipation linkage control device described in any one of claims 1-9, and is characterized in that, It includes: S1. System initialization: The gate cabinet, infrared temperature measurement module, alarm module, and heat dissipation module of the excitation system are correctly installed and connected to the corresponding power supply and communication network. The probe of the infrared temperature measurement module is accurately aligned with the knife switch contact to ensure real-time capture of the contact temperature data. The preset thresholds of the alarm module and heat dissipation module are configured according to actual needs, including high-temperature alarm temperature and heat dissipation start temperature. S2. The infrared temperature measurement module starts to work: The probe of the infrared temperature measurement module starts to measure the temperature of the knife switch contact in real time and transmits the data to the display screen. The display screen receives and displays the temperature data and sends the temperature data to the temperature data processing unit for analysis. S3. Temperature data monitoring and judgment: The temperature data processing unit continuously monitors the temperature data received from the infrared temperature measurement module. If the temperature data exceeds the preset high-temperature alarm threshold, the temperature data processing unit will trigger the start condition of the alarm module. S4. Alarm module starts: When the temperature data processing unit determines that the temperature exceeds the alarm threshold, the alarm module will start and emit a sound or light signal to alert the operator. After receiving the alarm, the operator immediately takes necessary measures to check and handle the abnormal situation. S5. Heat dissipation module starts: If the temperature data processing unit determines that the temperature exceeds the heat dissipation start threshold, the heat dissipation module will start. The heat dissipation module reduces the temperature of the gate cabinet of the excitation system and its surrounding environment through fans and heat sinks. S6. Monitoring and adjustment: The infrared temperature measurement module continues to measure the temperature in real time and sends the data to the display screen and the temperature data processing unit. The temperature data processing unit continuously monitors the system status based on the latest temperature data and adjusts the working status of the alarm module and heat dissipation module as needed. If the temperature drops to the safe range, the heat dissipation module will stop working. If the temperature continues to rise and exceeds a higher alarm threshold, manual intervention is used to handle the abnormal situation.

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