Transformer cooler monitoring system, method, device and equipment and storage medium

Abstract

The invention relates to a monitoring system, method, device and equipment for a transformer cooler and a storage medium, and relates to the technical field of transformer cooling, and the system comprises a plurality of wireless sensing modules which are installed in the transformer cooler and are used for collecting operation parameters of the transformer cooler; the operation parameters comprise the oil temperature of upper and lower layer pipelines of each cooling loop, the flow of each cooling loop, the fan current of each cooling loop fan and the sound of each cooling loop; the data acquisition module is wirelessly connected with each wireless sensing module and is used for acquiring and displaying the operation parameters acquired by each wireless sensing module; and the data processing module is deployed at a server side, is connected with the data acquisition module through a WIPI base station, and is used for obtaining the operation parameters of the plurality of transformer coolers sent by the data acquisition module, and performing monitoring according to the operation parameters and a preset fault judgment rule to obtain a monitoring result of each transformer cooler. The system can improve the accuracy of a monitoring result.

Description

Technical Field

[0001] The present application relates to the technical field of transformer cooling, and in particular to a monitoring system, method, device, equipment and storage medium for a transformer cooler. Background Art

[0002] Power transformer is one of the main equipments in power plants and substations. It has many functions. It can not only increase the voltage to send electricity to the power consumption area, but also reduce the voltage to various levels of use voltage to meet the power consumption needs. The cooling methods of transformers mainly include oil-immersed self-cooling, oil-immersed air-cooling, forced oil circulation air-cooling, forced oil circulation water-cooling, forced guided oil circulation air-cooling and forced guided oil circulation water-cooling. In order to ensure the normal operation of the transformer cooler, it is necessary to monitor the operating conditions of the cooler.

[0003] The traditional transformer cooler monitoring method mainly monitors the temperature of the cooler to determine whether it is operating normally. However, the monitoring data is relatively single and prone to misjudgment. Therefore, there is a problem of low accuracy of the monitoring results. Summary of the invention

[0004] Based on this, it is necessary to provide a monitoring system, method, device, equipment and storage medium for a transformer cooler that can improve accuracy in response to the above technical problems.

[0005] A monitoring system for a transformer cooler, comprising:

[0006] A plurality of wireless sensor modules are installed in the transformer cooler to collect operating parameters of multiple dimensions for the transformer cooler; the operating parameters include oil temperature of upper and lower pipes of each cooling circuit, flow rate of each cooling circuit, fan current of each cooling circuit fan and sound of each cooling circuit;

[0007] A data acquisition module, wirelessly connected to each of the wireless sensor modules, for acquiring the operating parameters collected by each of the wireless sensor modules and displaying the operating parameters;

[0008] The data processing module is deployed on the server side and connected to the data acquisition module through a WIPI base station, and is used to obtain the operating parameters of the multiple transformer coolers sent by the data acquisition module, and monitor according to the operating parameters and preset fault judgment rules to obtain the monitoring result of each transformer cooler.

[0009] In one embodiment, each of the wireless sensing modules comprises:

[0010] A pulse time difference ultrasonic flowmeter, which is arranged on an oil flow pipeline of a corresponding cooling circuit of the transformer cooler, and is used to monitor the flow of the cooling circuit of the transformer cooler;

[0011] An oil thermometer, the oil thermometer is arranged on the oil flow pipeline, and the oil thermometer is used to collect the oil temperature of the upper and lower layer pipelines of the corresponding cooling circuit;

[0012] An ammeter, the ammeter being connected to a fan of a corresponding cooling circuit of the transformer cooler, and the ammeter being used to collect the current of the fan;

[0013] A sound sensor is disposed inside a cooling circuit corresponding to the transformer cooler, and is used to collect the sound generated by the cooling circuit.

[0014] In one embodiment, the oil temperature meter comprises:

[0015] An upper oil thermometer, the upper oil thermometer is arranged at the upper layer of the oil flow pipeline, and the upper oil thermometer is used to collect the inlet cooler oil temperature of the transformer cooler;

[0016] A lower layer oil thermometer is arranged at the lower layer of the oil flow pipeline, and is used to collect the outlet oil temperature of the transformer cooler.

[0017] In one embodiment, the data acquisition module includes:

[0018] An input-output unit, the input-output unit is connected to the data processing module through a WIPI base station and is connected to the corresponding wireless sensor module, the input-output unit is used to obtain the operating parameters collected by the corresponding wireless sensor module and send the operating parameters to the data processing module;

[0019] A data display unit is connected to the input and output unit, and is used to display the operating parameters.

[0020] In one embodiment, the transformer cooler has multiple cooling circuits, multiple wireless sensor modules, and multiple data acquisition modules, and the number of the data processing module is one; wherein each cooling circuit corresponds to one wireless sensor module and one data acquisition module.

[0021] A monitoring method for a transformer cooler, applied to a data processing module of a monitoring system for a transformer cooler according to any one of the above embodiments, comprises:

[0022] Acquiring the operating parameters of multiple dimensions for the transformer cooler; the operating parameters include the oil temperature of the upper and lower pipes of each cooling circuit, the flow rate of each cooling circuit, the fan current of each cooling circuit fan and the sound of each cooling circuit;

[0023] According to the operating parameters, determining a preset fault judgment rule corresponding to each of the operating parameters;

[0024] Perform monitoring according to each of the operating parameters and the corresponding preset fault judgment rules to obtain a monitoring result of the transformer cooler;

[0025] When the monitoring result indicates that any of the operating parameters is faulty, an alarm is triggered.

[0026] In one embodiment, the monitoring according to each of the operating parameters and the corresponding preset fault judgment rules includes:

[0027] In the case where the operating parameter is the oil temperature of the upper and lower pipes of the cooling circuit, a comparison result is obtained according to a preset temperature threshold, a difference between an inlet cooler oil temperature and an outlet cooler oil temperature of the transformer cooler;

[0028] According to the comparison result, the fault condition of the oil temperature of the upper and lower layer pipelines of the cooling circuit is determined.

[0029] A monitoring and control device for a transformer cooler, characterized in that the data processing module of the monitoring system for the transformer cooler according to any one of the above embodiments is applied, comprising:

[0030] A parameter acquisition module, used to acquire the operating parameters of multiple dimensions for the transformer cooler; the operating parameters include the oil temperature of the upper and lower pipes of each cooling circuit, the flow rate of each cooling circuit, the fan current of each cooling circuit fan and the sound of each cooling circuit;

[0031] A rule determination module, used to determine, according to the operating parameters, a preset fault judgment rule corresponding to each of the operating parameters;

[0032] A fault monitoring module, used to monitor according to each of the operating parameters and the corresponding preset fault judgment rules to obtain a monitoring result of the transformer cooler;

[0033] The fault alarm module is used to trigger an alarm when the monitoring result shows that any of the operating parameters has a fault.

[0034] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0035] Acquiring the operating parameters of multiple dimensions for the transformer cooler; the operating parameters include the oil temperature of the upper and lower pipes of each cooling circuit, the flow rate of each cooling circuit, the fan current of each cooling circuit fan and the sound of each cooling circuit;

[0036] According to the operating parameters, determining a preset fault judgment rule corresponding to each of the operating parameters;

[0037] Perform monitoring according to each of the operating parameters and the corresponding preset fault judgment rules to obtain a monitoring result of the transformer cooler;

[0038] When the monitoring result indicates that any of the operating parameters is faulty, an alarm is triggered.

[0039] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the following steps:

[0040] Acquiring the operating parameters of multiple dimensions for the transformer cooler; the operating parameters include the oil temperature of the upper and lower pipes of each cooling circuit, the flow rate of each cooling circuit, the fan current of each cooling circuit fan and the sound of each cooling circuit;

[0041] According to the operating parameters, determining a preset fault judgment rule corresponding to each of the operating parameters;

[0042] Perform monitoring according to each of the operating parameters and the corresponding preset fault judgment rules to obtain a monitoring result of the transformer cooler;

[0043] When the monitoring result indicates that any of the operating parameters is faulty, an alarm is triggered.

[0044] The monitoring system, method, device, equipment and storage medium of the transformer cooler include a plurality of wireless sensor modules, a data acquisition module and a data processing module. Among them, multiple wireless sensor modules are installed in the transformer cooler to collect operating parameters of multiple dimensions for the transformer cooler, wherein the operating parameters include the oil temperature of the upper and lower pipes of each cooling circuit, the flow of each cooling circuit, the fan current of each cooling circuit fan and the sound of each cooling circuit, realizing multi-faceted monitoring of the transformer cooler, thereby improving the accuracy of the monitoring results; the data acquisition module is wirelessly connected to each wireless sensor module, and is used to obtain the operating parameters collected by each wireless sensor module, and display the operating parameters, realizing the visualization of the monitoring results, and facilitating the on-site inspection personnel to obtain timely feedback; the data processing module is deployed on the server side, and is connected to the data acquisition module through a WIPI base station, and is used to obtain the operating parameters of multiple transformer coolers sent by the data acquisition module, monitor according to the operating parameters and preset fault judgment rules, and obtain the monitoring results of each transformer cooler, and transmit the operating parameters to the data processing module on the server side by wireless communication, which reduces wiring, can reduce costs, and realizes remote monitoring of the transformer cooler, without the need for technical personnel to monitor on site, reducing work costs while improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0046] FIG1 is a schematic diagram of the structure of a monitoring system for a transformer cooler in one embodiment;

[0047] FIG2 is a schematic diagram of the structure of a wireless sensor module in one embodiment;

[0048] FIG3 is a schematic diagram of the structure of a wireless sensor module in another embodiment;

[0049] FIG4 is a schematic diagram of the structure of a data acquisition module in one embodiment;

[0050] FIG5 is a schematic flow chart of a method for monitoring a transformer cooler in one embodiment;

[0051] FIG6 is a schematic diagram of the structure of an online monitoring system for operating conditions of a transformer cooler in one embodiment;

[0052] FIG7 is a schematic diagram of a wiring structure of a wireless sensor module in one embodiment;

[0053] FIG8 is a block diagram of a monitoring and control device for a transformer cooler in one embodiment;

[0054] FIG. 9 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0055] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0057] Spatially relative terms such as "under," "beneath," "below," "under," "above," "above," and the like may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It should be understood that, in addition to the orientations shown in the figures, spatially relative terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0058] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. In addition, the "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if there is transmission of electrical signals or data between the connected objects.

[0059] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0060] In one embodiment, as shown in FIG1 , a monitoring device for a transformer cooler is provided, comprising:

[0061] A plurality of wireless sensor modules 11 , a data acquisition module 12 and a data processing module 13 .

[0062] Among them, multiple wireless sensor modules 11 are installed in the transformer cooler, which are used to collect operating parameters of multiple dimensions for the transformer cooler, wherein the operating parameters include the oil temperature of the upper and lower pipes of each cooling circuit, the flow of each cooling circuit, the fan current of each cooling circuit fan and the sound of each cooling circuit, so as to realize multi-faceted monitoring of the transformer cooler, thereby improving the accuracy of the monitoring results; the data acquisition module 12 is wirelessly connected to each wireless sensor module 11, and is used to obtain the operating parameters collected by each wireless sensor module 11, and display the operating parameters, so as to realize the visualization of the monitoring results, so as to facilitate the on-site inspection personnel to obtain timely feedback; the data processing module 13 is deployed on the server side, and is connected to the data acquisition module 12 through a WIPI base station, so as to obtain the operating parameters of multiple transformer coolers sent by the data acquisition module 12, monitor according to the operating parameters and preset fault judgment rules, and obtain the monitoring results of each transformer cooler, and transmit the operating parameters to the data processing module 13 on the server side by wireless communication, which reduces wiring, can reduce costs, and realizes remote monitoring of the transformer cooler, without the need for technical personnel to monitor on site, reducing work costs while improving work efficiency.

[0063] It can be understood that the data acquisition module 12 uploads the operating parameters to the WIPI (Wireless Internet Platform for Interoperability) base station, and further uploads the operating parameters to the WIPI aggregation switch through the WIPI base station. The WIPI aggregation switch sends the operating parameters to the data processing module 13 on the server side through the LAN (Local Area Network). Among them, the WIPI aggregation switch refers to a network device used in the wireless Internet access platform architecture, which is mainly used to aggregate and manage traffic from multiple base stations or access points, plays the role of connecting different network nodes, and can process a large amount of user data and signals, thereby improving the efficiency and performance of the network. In addition, after the data processing module 13 performs data processing, it can also transmit the processing results and operating parameters to the Internet of Things platform through the local area network.

[0064] It should be noted that heat is generated during the operation of the transformer, and excessively high temperatures will affect the performance and life of the transformer. Therefore, a cooler is configured for the transformer to cool the heat generated during the operation of the transformer. The cooling methods of the transformer cooler usually include natural cooling, oil cooling, air cooling and water cooling. The transformer cooler of this embodiment adopts an oil cooling method, and the coolant circulates through the cooling circuit. During the circulation process, the coolant takes away the heat of the transformer. The heated coolant is cooled by the fan and then put into the transformer again to cool it down, and the cycle continues. The transformer cooler includes multiple cooling circuits, and each cooling circuit corresponds to a wireless sensor module 11. In addition, the number of data acquisition modules 12 is also multiple, corresponding to each cooling circuit one by one, and the number of data processing modules 13 is one, corresponding to multiple data acquisition modules 12 respectively.

[0065] The monitoring device for the transformer cooler comprises a plurality of wireless sensor modules 11 , a data acquisition module 12 and a data processing module 13 . Among them, multiple wireless sensor modules 11 are installed in the transformer cooler, which are used to collect operating parameters of multiple dimensions for the transformer cooler, wherein the operating parameters include the oil temperature of the upper and lower pipes of each cooling circuit, the flow of each cooling circuit, the fan current of each cooling circuit fan and the sound of each cooling circuit, so as to realize multi-faceted monitoring of the transformer cooler, thereby improving the accuracy of the monitoring results; the data acquisition module 12 is wirelessly connected to each wireless sensor module 11, and is used to obtain the operating parameters collected by each wireless sensor module 11, and display the operating parameters, so as to realize the visualization of the monitoring results, so as to facilitate the on-site inspection personnel to obtain timely feedback; the data processing module 13 is deployed on the server side, and is connected to the data acquisition module 12 through a WIPI base station, so as to obtain the operating parameters of multiple transformer coolers sent by the data acquisition module 12, monitor according to the operating parameters and preset fault judgment rules, and obtain the monitoring results of each transformer cooler, and transmit the operating parameters to the data processing module 13 on the server side by wireless communication, which reduces wiring, can reduce costs, and realizes remote monitoring of the transformer cooler, without the need for technical personnel to monitor on site, reducing work costs while improving work efficiency.

[0066] In one embodiment, as shown in FIG2 , each wireless sensor module 11 includes:

[0067] Pulse time difference ultrasonic flowmeter 111 , oil temperature meter 112 , ammeter 113 and sound sensor 114 .

[0068] Among them, the pulse time difference ultrasonic flowmeter 111 is arranged on the oil flow pipeline of the corresponding cooling circuit of the transformer cooler, and the pulse time difference ultrasonic flowmeter 111 is used to monitor the flow of the cooling circuit of the transformer cooler; the oil thermometer 112 is arranged on the oil flow pipeline, and the oil thermometer 112 is used to collect the oil temperature of the upper and lower layer pipelines of the corresponding cooling circuit; the ammeter 113 is connected to the fan of the corresponding cooling circuit of the transformer cooler, and the ammeter 113 is used to collect the current of the fan; the sound sensor 114 is arranged inside the cooling circuit corresponding to the transformer cooler, and the sound sensor 114 is used to collect the sound generated by the cooling circuit.

[0069] The pulse time difference ultrasonic flowmeter 111 is an instrument for measuring the velocity and flow rate of a fluid, and its working principle is based on the time difference of an ultrasonic signal propagating in a fluid.

[0070] It should be noted that by monitoring the flow rate of the cooling circuit of the transformer cooler, it can be determined whether the oil pump of the transformer cooler is normal and whether the oil flow of the cooling circuit is normal; by monitoring the oil temperature of the upper and lower pipes of the cooling circuit, the cooling efficiency of the transformer cooler can be monitored; by monitoring the fan current of the fan of the transformer cooler, it can be determined whether the fan has a short circuit fault; by monitoring the sound of the transformer cooler, it can be determined whether the operation of the cooler is abnormal. In addition, each cooling circuit includes multiple fans, and each fan corresponds to an ammeter 113.

[0071] In one embodiment, as shown in FIG3 , the oil temperature meter 112 includes:

[0072] Upper oil thermometer 1121 and lower oil thermometer 1122.

[0073] Among them, the upper oil thermometer 1121 is arranged at the upper layer of the oil flow pipeline, and the upper oil thermometer 1121 is used to collect the inlet oil temperature of the transformer cooler; the lower oil thermometer 1122 is arranged at the lower layer of the oil flow pipeline, and the lower oil thermometer 1122 is used to collect the outlet oil temperature of the transformer cooler.

[0074] It should be noted that the upper layer of the oil flow pipeline is the inlet for the coolant to flow into the transformer cooler, and the lower layer of the oil flow pipeline is the outlet for the coolant to flow out of the transformer cooler. By monitoring the oil temperature entering the cooler and the oil temperature leaving the cooler, the cooling efficiency and cooling effect of the transformer cooler can be monitored, thereby determining whether there is a fault in the transformer cooler and further improving the accuracy of the monitoring results.

[0075] In one embodiment, as shown in FIG4 , the data acquisition module 12 includes:

[0076] Input and output unit and data display unit.

[0077] Among them, the input and output unit is connected to the data processing module 13 through the WIPI base station, and is connected to the corresponding wireless sensor module 11. The input and output unit is used to obtain the operating parameters collected by the corresponding wireless sensor module 11 and send the operating parameters to the data processing module 13; the data display unit is connected to the input and output unit, and the data display unit is used to display the operating parameters.

[0078] It is understandable that the input-output unit includes a wireless transmission communication interface and a wired transmission communication interface, and the wireless transmission communication interface is connected to the antenna, so as to realize the wireless communication between the data acquisition module 12 and the wireless sensor module 11 and the data processing module 13 respectively, and the input-output unit is connected to the data display unit through the wired transmission communication interface, and the operating parameters can be transmitted to the data display unit for display in time. In addition, when the data display unit displays the operating parameters, it can be displayed in the form of data or in the form of a waveform diagram, and there is no specific limitation on this. The inspection technicians can intuitively understand the operating conditions of the transformer cooler through the data display unit on site, and take corresponding measures on site, thereby improving the inspection work efficiency and the maintenance efficiency of the transformer cooler.

[0079] In one embodiment, as shown in FIG5 , a transformer cooler monitoring method is provided, which is applied to a data processing module of a transformer cooler monitoring system described in any one of the above embodiments, and the method includes:

[0080] Step S502: obtaining operating parameters of multiple dimensions for the transformer cooler.

[0081] The operating parameters include the oil temperature of the upper and lower pipes of each cooling circuit, the flow rate of each cooling circuit, the fan current of the fan of each cooling circuit, and the sound of each cooling circuit.

[0082] Optionally, the data processing module obtains operating parameters of multiple dimensions for the transformer cooler as data support for subsequent fault monitoring.

[0083] Step S504: determining, according to the operating parameters, a preset fault judgment rule corresponding to each operating parameter.

[0084] Among them, the preset fault judgment rule can be a method for determining whether the transformer cooler is faulty based on each operating parameter, for example, comparing the operating parameter with the preset standard to determine whether the transformer cooler is faulty, or further processing the operating parameter and comparing it with the preset standard.

[0085] Optionally, the data processing module determines a preset fault judgment rule corresponding to each operating parameter according to the type of the operating parameter, such as determining a normal operating threshold range corresponding to each operating parameter.

[0086] Step S506: Monitor according to each operating parameter and the corresponding preset fault judgment rule to obtain the monitoring result of the transformer cooler.

[0087] The monitoring result may include the normal operation of the transformer cooler or the failure of the transformer cooler, and may also include the specific cooling circuit with the failure and the operating parameters with the failure.

[0088] Optionally, the data processing module compares each operating parameter with the threshold range of the operating parameter under normal conditions in the corresponding preset fault judgment rule to obtain the monitoring result of the transformer cooler. For example, for the flow of the cooling circuit, the flow is compared with the preset flow threshold. If the flow is less than the flow threshold, it is determined that the flow parameter has a fault; for the fan current of the cooling circuit, because each cooling circuit is provided with multiple fans, the currents of each fan on the cooling circuit are comprehensively compared, such as calculating the current mean, or setting the current range to determine whether there is a fault; for the sound of the cooling circuit, the collected sound is audio data, and the monitored audio data is compared with the pre-collected normal operation audio data, or the similarity is calculated, etc., to determine whether there is a fault in the cooling circuit.

[0089] Step S508: When the monitoring result shows that any operating parameter has a fault, an alarm is triggered.

[0090] Optionally, when an operating parameter exceeds a threshold range of the operating parameter under normal circumstances, the data processing module determines that the operating parameter is faulty, and the monitoring result is that the transformer cooler is faulty. Therefore, when the monitoring result is that any operating parameter is faulty, the data processing module triggers an alarm, and the alarm mode is set according to actual needs, such as sound and light alarm, pop-up alarm, etc.

[0091] In this embodiment, the data processing module obtains operating parameters of multiple dimensions to make monitoring more comprehensive. The more data dimensions used as the basis for monitoring, the more scientific and objective the monitoring results are, thereby improving accuracy. By presetting fault judgment rules, the system can respond quickly when encountering various operating parameters, providing a set of standardized fault detection methods, reducing the subjectivity of human judgment, and improving the accuracy and consistency of fault judgment. Once a fault is found, the data processing module can quickly trigger the corresponding alarm mechanism. Timely feedback can help operators take measures quickly to prevent the fault from expanding, thereby improving the safety and reliability of the transformer cooler.

[0092] In one embodiment, step S506 performs monitoring according to each operating parameter and the corresponding preset fault judgment rule, including:

[0093] When the operating parameter is the oil temperature of the upper and lower pipes of the cooling circuit, a comparison result is obtained based on a preset temperature threshold, the difference between the inlet cooler oil temperature and the outlet cooler oil temperature of the transformer cooler; based on the comparison result, a fault condition of the oil temperature of the upper and lower pipes of the cooling circuit is determined.

[0094] The preset temperature threshold may be set according to temperature changes during the historical operation of the transformer cooler, and may be set according to actual cooling requirements.

[0095] Optionally, when the operating parameter is the oil temperature of the upper and lower pipes of the cooling circuit, the data processing module compares the preset temperature threshold, the difference between the inlet cooler oil temperature and the outlet cooler oil temperature of the transformer cooler, obtains a comparison result, and determines the fault condition of the oil temperature of the upper and lower pipes of the cooling circuit according to the comparison result. For example, when the difference between the inlet cooler temperature and the outlet cooler temperature is less than 10°C, it is determined that the cooling efficiency is reduced, and it is determined that there is a fault in the oil temperature parameter of the upper and lower pipes of the cooling circuit.

[0096] In this embodiment, the inlet and outlet oil temperatures of the transformer cooler are monitored in real time, so that the operating status of the cooling circuit can be obtained in time, which helps to judge the overall efficiency and reliability of the cooling system, and the oil temperature parameters of the upper and lower pipelines are clearly defined as key monitoring points, making fault location more accurate. When an abnormality occurs, the operator can quickly identify the problem area and improve the efficiency of troubleshooting.

[0097] In one embodiment, as shown in FIG6 , a transformer cooler operating condition online monitoring system is provided, comprising:

[0098] Wireless sensors, intelligent acquisition systems and data processing and display systems.

[0099] The wireless sensor is installed in the transformer cooling system loop, and its wiring schematic is shown in Figure 7, including: pulse time difference ultrasonic flowmeter: installed on the oil flow pipeline, based on the pulse time difference ultrasonic technology, real-time monitoring of the flow of each cooling branch, and judging whether the submersible oil pump and the oil flow of the cooling circuit are normal by the flow; inlet and outlet cooler oil temperature meter: installed on the upper and lower pipelines, by measuring the temperature of each cooling circuit, real-time monitoring of the cooling efficiency of the cooling system; ammeter: measuring the fan current of each cooling circuit, judging whether the fan operation has short circuit and other abnormalities; vibration and sound sensor: installed in the middle of each group of coolers, the sound and vibration of the cooling system are measured by the sound and vibration sensor device, and the cooling system is comprehensively judged to have abnormalities and abnormal vibrations.

[0100] Intelligent acquisition system, which realizes the acquisition of inlet and outlet flow, oil temperature of cooler, current, vibration and sound data through the IO module in the intelligent acquisition display, and transmits the data to the data processing module through the data bus. The data is sent to the WIPI base station through the IO (Input Output) module in the intelligent acquisition display, and then uploaded to the WIPI aggregation switch through the WIPI base station. The WIPI aggregation switch transmits the data to the background of the transformer operation condition online monitoring system through the LAN network. The background of the transformer operation condition online monitoring system is connected to the intelligent gateway through the LAN network and transmits the data to the Internet of Things platform. The operation condition of the transformer cooling system can be monitored in real time through the background of the transformer operation condition online monitoring system and the Internet of Things platform.

[0101] Data processing and display system. The intelligent collector is a wireless remote transmission RTU that supports multi-channel signal access, mainly composed of an input-output unit, a data acquisition module, a data processing module, a control module, etc. The schematic diagram is shown in Figure 3. The intelligent collector acquires the data of on-site wireless sensors through the data acquisition module, including parameters such as oil flow rate, oil temperature, current, vibration, and sound of the cooling branch. The data is processed through the control module and logical judgment is carried out to realize the following alarm functions: when (inlet cooler temperature - outlet cooler temperature) < 10 °C (set according to the actual on-site operation condition), it is determined that the cooling efficiency is reduced, and an alarm for reduced cooling efficiency is given; when the flow rate Q < Qset (set according to the actual on-site operation condition), it is judged that the flow rate is abnormal, and an alarm for abnormal flow rate is given; when I > Iset1 or I < Iset2 (set according to the actual on-site operation condition), compared with the current of other cooling fans, it is comprehensively determined that the fan current is abnormal and an alarm is given; when the sound and noise > 50 dB (set according to the actual on-site operation condition), it is determined that there is abnormal sound and vibration of the fan, and an alarm is given; Local display system. The intelligent collector integrates data acquisition, remote transmission, and logical control functions, has multiple indicator lights, and can detail the system status, network status, server connection status, and sensor communication status.

[0102] In this embodiment, the transformer operation condition online monitoring system can observe the parameters such as oil flow rate, oil temperature, current, vibration, and sound of the transformer cooling branch in real time on the cloud platform through intelligent acquisition and processing, and can monitor in real time whether there are abnormal operation conditions such as abnormal flow rate and reduced cooling efficiency of the cooler, saving labor costs and improving the defect discovery efficiency of the cooler and the operation reliability of the system. The present invention uses WIPI sensing technology, and uploads data from on-site wireless sensors to the background and the Internet of Things platform through wireless acquisition, greatly reducing on-site wiring and reducing investment and operation and maintenance costs.

[0103] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0104] Based on the same inventive concept, the embodiment of the present application also provides a monitoring device for a transformer cooler for implementing the monitoring method for a transformer cooler involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in the embodiments of the monitoring device for one or more transformer coolers provided below can refer to the limitations of the monitoring method for a transformer cooler above, and will not be repeated here.

[0105] In one embodiment, as shown in FIG8 , a monitoring device 800 for a transformer cooler is provided, comprising: a parameter acquisition module 802 , a rule determination module 804 , a fault monitoring module 806 and a fault alarm module 808 , wherein:

[0106] The parameter acquisition module 802 is used to obtain operating parameters of multiple dimensions for the transformer cooler; the operating parameters include the oil temperature of the upper and lower pipes of each cooling circuit, the flow of each cooling circuit, the fan current of each cooling circuit fan and the sound of each cooling circuit.

[0107] The rule determination module 804 is used to determine the preset fault judgment rule corresponding to each operating parameter according to the operating parameters.

[0108] The fault monitoring module 806 is used to perform monitoring according to each operating parameter and the corresponding preset fault judgment rule to obtain the monitoring result of the transformer cooler.

[0109] The fault alarm module 808 is used to trigger an alarm when the monitoring result shows that any operating parameter has a fault.

[0110] Furthermore, in one embodiment, the fault monitoring module 806 is also used to obtain a comparison result based on a preset temperature threshold, the difference between the inlet oil temperature of the transformer cooler and the outlet oil temperature of the transformer cooler when the operating parameter is the oil temperature of the upper and lower pipes of the cooling circuit; and determine the fault condition of the oil temperature of the upper and lower pipes of the cooling circuit based on the comparison result.

[0111] Each module in the monitoring device 800 for transformer cooler can be implemented in whole or in part by software, hardware or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each module.

[0112] In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be shown in FIG9 . The computer device includes a processor, a memory, and a network interface connected via a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store operating parameter data. The network interface of the computer device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, a monitoring method for a transformer cooler is implemented.

[0113] Those skilled in the art will understand that the structure shown in FIG. 9 is merely a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0114] In one embodiment, a computer device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above method embodiments when executing the computer program.

[0115] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0116] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0117] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0118] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", "ideal embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0119] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0120] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A monitoring system for a transformer cooler, characterized in that: include: A plurality of wireless sensor modules are installed in the transformer cooler to collect operating parameters of multiple dimensions for the transformer cooler; the operating parameters include oil temperature of upper and lower pipes of each cooling circuit, flow rate of each cooling circuit, fan current of each cooling circuit fan and sound of each cooling circuit; A data acquisition module, wirelessly connected to each of the wireless sensor modules, for acquiring the operating parameters collected by each of the wireless sensor modules and displaying the operating parameters; The data processing module is deployed on the server side and connected to the data acquisition module through a WIPI base station, and is used to obtain the operating parameters of the multiple transformer coolers sent by the data acquisition module, and monitor according to the operating parameters and preset fault judgment rules to obtain the monitoring result of each transformer cooler.

2. The monitoring system for transformer cooler according to claim 1, characterized in that: Each of the wireless sensing modules comprises: A pulse time difference ultrasonic flowmeter, which is arranged on an oil flow pipeline of a corresponding cooling circuit of the transformer cooler, and is used to monitor the flow of the cooling circuit of the transformer cooler; An oil thermometer, the oil thermometer is arranged on the oil flow pipeline, and the oil thermometer is used to collect the oil temperature of the upper and lower layer pipelines of the corresponding cooling circuit; An ammeter, the ammeter being connected to a fan of a corresponding cooling circuit of the transformer cooler, and the ammeter being used to collect the current of the fan; A sound sensor is disposed inside a cooling circuit corresponding to the transformer cooler, and is used to collect the sound generated by the cooling circuit.

3. The monitoring system for transformer cooler according to claim 2, characterized in that: The oil temperature gauge comprises: An upper oil thermometer, the upper oil thermometer is arranged at the upper layer of the oil flow pipeline, and the upper oil thermometer is used to collect the inlet cooler oil temperature of the transformer cooler; A lower layer oil thermometer is arranged at the lower layer of the oil flow pipeline, and is used to collect the outlet oil temperature of the transformer cooler.

4. The monitoring system for transformer cooler according to claim 1, characterized in that: The data acquisition module comprises: An input-output unit, the input-output unit is connected to the data processing module through a WIPI base station and is connected to the corresponding wireless sensor module, the input-output unit is used to obtain the operating parameters collected by the corresponding wireless sensor module and send the operating parameters to the data processing module; A data display unit is connected to the input and output unit, and is used to display the operating parameters.

5. The monitoring system for a transformer cooler according to any one of claims 1 to 4, characterized in that: The transformer cooler has multiple cooling circuits, multiple wireless sensor modules and multiple data acquisition modules, and one data processing module; each cooling circuit corresponds to one wireless sensor module and one data acquisition module.

6. A monitoring method for a transformer cooler, characterized in that: The data processing module of the monitoring system for the transformer cooler according to any one of claims 1 to 5 comprises: Acquiring the operating parameters of multiple dimensions for the transformer cooler; the operating parameters include the oil temperature of the upper and lower pipes of each cooling circuit, the flow rate of each cooling circuit, the fan current of each cooling circuit fan and the sound of each cooling circuit; According to the operating parameters, determining a preset fault judgment rule corresponding to each of the operating parameters; Perform monitoring according to each of the operating parameters and the corresponding preset fault judgment rules to obtain a monitoring result of the transformer cooler; When the monitoring result indicates that any of the operating parameters is faulty, an alarm is triggered.

7. The monitoring method for a transformer cooler according to claim 6, characterized in that: The monitoring according to each of the operating parameters and the corresponding preset fault judgment rules includes: In the case where the operating parameter is the oil temperature of the upper and lower pipes of the cooling circuit, a comparison result is obtained according to a preset temperature threshold, a difference between an inlet cooler oil temperature and an outlet cooler oil temperature of the transformer cooler; According to the comparison result, the fault condition of the oil temperature of the upper and lower layer pipelines of the cooling circuit is determined.

8. A monitoring and control device for a transformer cooler, characterized in that: The data processing module of the monitoring system for the transformer cooler according to any one of claims 1 to 5 comprises: A parameter acquisition module, used to acquire the operating parameters of multiple dimensions for the transformer cooler; the operating parameters include the oil temperature of the upper and lower pipes of each cooling circuit, the flow rate of each cooling circuit, the fan current of each cooling circuit fan and the sound of each cooling circuit; A rule determination module, used to determine, according to the operating parameters, a preset fault judgment rule corresponding to each of the operating parameters; A fault monitoring module, used to monitor according to each of the operating parameters and the corresponding preset fault judgment rules to obtain a monitoring result of the transformer cooler; The fault alarm module is used to trigger an alarm when the monitoring result shows that any of the operating parameters has a fault.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 6 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 6 to 7 are implemented.

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