CN216246893U - An intelligent transformer temperature monitoring system - Google Patents
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Abstract
Description
技术领域technical field
本实用新型属于输变电设备中变压器在线监测技术领域,具体涉及一种智能变压器温度监测系统。The utility model belongs to the technical field of on-line monitoring of transformers in power transmission and transformation equipment, in particular to an intelligent transformer temperature monitoring system.
背景技术Background technique
随着国家电力行业规模的快速发展,用电需求量也在持续上升,电力变压器不断向大容量、高电压方向发展。变压器作为电力系统中的重要电力设备,运行的安全可靠性将会对电网的供电质量产生直接影响,其中过热故障占总故障台数的63%左右,因此有效实施对变压器温度在线监测对保证变压器的安全稳定运行具有重要意义。With the rapid development of the scale of the national power industry, the demand for electricity continues to rise, and power transformers continue to develop in the direction of large capacity and high voltage. As an important power equipment in the power system, the safety and reliability of the operation of the transformer will have a direct impact on the power supply quality of the power grid, of which overheating faults account for about 63% of the total number of faults. Safe and stable operation is of great significance.
目前变压器的温度监测装置,从取电方式上看,分为有源测温和无源测温两种。其中,有源测温方式有红外摄像头测温方式,利用红外成像原理进行温度的实时检测,但成本非常高;无源测温传感器主要有光纤测温传感器、感应取电测温传感器等。然而,光纤测温传感器采用光纤作为传输信号线,测温精度和数据传输质量较高,但是安装时易将光纤芯折断且成本较高;感应取电测温传感器必须在感应电流大于一定值后才能正常工作,存在应用范围受限的问题。At present, the temperature monitoring device of the transformer can be divided into two types: active temperature measurement and passive temperature measurement. Among them, the active temperature measurement method includes infrared camera temperature measurement method, which uses the principle of infrared imaging for real-time temperature detection, but the cost is very high; passive temperature measurement sensors mainly include optical fiber temperature measurement sensors, inductive electricity temperature measurement sensors, etc. However, the optical fiber temperature measurement sensor uses optical fiber as the transmission signal line, and the temperature measurement accuracy and data transmission quality are high, but the optical fiber core is easily broken during installation and the cost is high; the inductive electricity temperature measurement sensor must be used after the induced current is greater than a certain value. To work properly, there is a problem of limited application scope.
实用新型内容Utility model content
基于上述问题,本实用新型的目的是提供一种智能变压器温度监测系统,采用无源无线技术和温差发电技术,实现变压器温度的在线监测,以及时发现变压器温度异常情况,防止变压器事故的发生。Based on the above problems, the purpose of this utility model is to provide an intelligent transformer temperature monitoring system, which adopts passive wireless technology and thermoelectric power generation technology to realize on-line monitoring of transformer temperature, timely detect abnormal temperature conditions of transformers, and prevent the occurrence of transformer accidents.
为达到上述目的,本实用新型提供了一种智能变压器温度监测系统,包括测温装置;所述测温装置包括温度传感器、信号调理及隔离模块、数据处理模块、无线发射器、无线接收器、能量管理电路和热电发生器;In order to achieve the above purpose, the utility model provides an intelligent transformer temperature monitoring system, including a temperature measurement device; the temperature measurement device includes a temperature sensor, a signal conditioning and isolation module, a data processing module, a wireless transmitter, a wireless receiver, Energy management circuits and thermoelectric generators;
所述热电发生器通过能量管理电路为温度传感器、信号调理及隔离模块、数据处理模块、无线发射器、无线接收器供电;The thermoelectric generator supplies power to the temperature sensor, the signal conditioning and isolation module, the data processing module, the wireless transmitter and the wireless receiver through the energy management circuit;
所述温度传感器通过信号调理及隔离模块与所述数据处理模块连接,将温度数据转换为数字信号传输至所述数据处理模块;The temperature sensor is connected to the data processing module through a signal conditioning and isolation module, and converts temperature data into digital signals and transmits it to the data processing module;
所述数据处理模块与所述无线发射器通信连接,将处理过的温度数据发送至所述无线发射器,再通过无线发射器发送至无线接收器;The data processing module is connected in communication with the wireless transmitter, and sends the processed temperature data to the wireless transmitter, and then sends the processed temperature data to the wireless receiver through the wireless transmitter;
所述测温装置固定设置在智能变压器的各相绕组、铁芯和/或各相电缆头上;The temperature measuring device is fixedly arranged on each phase winding, iron core and/or each phase cable head of the intelligent transformer;
还包括冷却风机和风机控制模块;当变压器本体的任一相绕组、铁芯和/或任一相电缆头的温度超过本体高温风机启动定值时,所述风机控制模块控制冷却风机启动。It also includes a cooling fan and a fan control module; when the temperature of any phase winding, iron core and/or any phase cable head of the transformer body exceeds the high temperature fan start setting value of the body, the fan control module controls the cooling fan to start.
进一步的,所述热电发生器包括热端、冷端和散热器,所述热端安装在变压器温度监测部位,所述散热器设置冷端一侧。Further, the thermoelectric generator includes a hot end, a cold end and a radiator, the hot end is installed at the temperature monitoring part of the transformer, and the radiator is arranged on one side of the cold end.
进一步的,所述能量管理电路包括升压电路、启动电路、稳压电路和储能器件。Further, the energy management circuit includes a booster circuit, a start-up circuit, a voltage regulator circuit and an energy storage device.
进一步的,还包括显示模块;Further, it also includes a display module;
所述无线接收器将接收到的温度数据传输至所述显示模块进行显示。The wireless receiver transmits the received temperature data to the display module for display.
进一步的,还包括高温告警模块,当变压器本体的任一相绕组、铁芯和/或任一相电缆头的温度超过本体高温告警定值时,发出本体高温告警信号。Further, it also includes a high temperature alarm module, when the temperature of any phase winding, iron core and/or any phase cable head of the transformer body exceeds the high temperature alarm set value of the main body, it sends out a high temperature alarm signal of the main body.
进一步的,还包括保护控制模块;Further, it also includes a protection control module;
当变压器本体的任一相绕组、铁芯和/或任一相电缆头的温度超过本体高温保护定值时,所述保护控制模块控制变压器跳闸,退出变压器运行。When the temperature of any phase winding, iron core and/or any phase cable head of the transformer body exceeds the high temperature protection set value of the transformer body, the protection control module controls the transformer to trip and exit the transformer operation.
进一步的,还包括延时单元,延时一定时间后,执行相应操作。Further, a delay unit is also included, and after a certain time delay, a corresponding operation is performed.
综上所述,本实用新型提供了一种智能变压器温度监测系统,该测温装置包括:温度传感器、信号调理及隔离模块、数据处理模块、无线发射器、无线接收器、能量管理电路和热电发生器。该智能变压器温度监测系统包括该测温装置。本实用新型基于温差发电原理的热电发生模块可以为整套测温装置供电,同时温度传感器工作,将采集到的温度数据通过处理后经无线发射器和无线接收器上传至应用层,从而实现了变压器的温度在线实时监测。该测温装置体积小、维护成本低,对于维护变压器等电力设备的安全运行具有重要意义。To sum up, the utility model provides an intelligent transformer temperature monitoring system, the temperature measuring device includes: a temperature sensor, a signal conditioning and isolation module, a data processing module, a wireless transmitter, a wireless receiver, an energy management circuit and a thermoelectric generator. The intelligent transformer temperature monitoring system includes the temperature measuring device. The thermoelectric generating module of the utility model based on the principle of thermoelectric power generation can supply power for the whole set of temperature measuring devices, while the temperature sensor works, and the collected temperature data is processed and uploaded to the application layer through the wireless transmitter and the wireless receiver, thereby realizing the transformer Online real-time monitoring of temperature. The temperature measuring device is small in size and low in maintenance cost, and is of great significance for maintaining the safe operation of power equipment such as transformers.
附图说明Description of drawings
图1是本实用新型实施例测温装置的结构框图;Fig. 1 is the structural block diagram of the temperature measuring device of the embodiment of the present invention;
图2是本实用新型实施例智能变压器温度监测系统的结构框图;2 is a structural block diagram of an intelligent transformer temperature monitoring system according to an embodiment of the present invention;
图3是本实用新型又一实施例智能变压器温度监测系统的结构框图。FIG. 3 is a structural block diagram of an intelligent transformer temperature monitoring system according to another embodiment of the present invention.
具体实施方式Detailed ways
为使本实用新型的目的、技术方案和优点更加清楚明了,下面结合具体实施方式并参照附图,对本实用新型进一步详细说明。应该理解,这些描述只是示例性的,而并非要限制本实用新型的范围。此外,在以下说明中,省略了对公知结构和技术的描述,以避免不必要地混淆本实用新型的概念。In order to make the purpose, technical solutions and advantages of the present utility model more clear, the present utility model will be further described in detail below in conjunction with the specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present invention.
本实用新型的第一方面提供了一种测温装置,如图1所示,包括温度传感器、信号调理及隔离模块、数据处理模块、无线发射器、无线接收器、能量管理电路和热电发生器;所述热电发生器通过能量管理电路为温度传感器、信号调理及隔离模块、数据处理模块、无线发射器、无线接收器供电;所述温度传感器通过信号调理及隔离模块与所述数据处理模块连接,将温度数据转换为数字信号传输至所述数据处理模块;所述数据处理模块与所述无线发射器通信连接,将处理过的温度数据发送至所述无线发射器,再通过无线发射器发送至无线接收器。A first aspect of the present utility model provides a temperature measurement device, as shown in FIG. 1 , including a temperature sensor, a signal conditioning and isolation module, a data processing module, a wireless transmitter, a wireless receiver, an energy management circuit and a thermoelectric generator The thermoelectric generator supplies power to the temperature sensor, the signal conditioning and isolation module, the data processing module, the wireless transmitter and the wireless receiver through the energy management circuit; the temperature sensor is connected to the data processing module through the signal conditioning and isolation module , convert the temperature data into digital signals and transmit them to the data processing module; the data processing module is connected in communication with the wireless transmitter, and sends the processed temperature data to the wireless transmitter, and then sends it through the wireless transmitter to the wireless receiver.
进一步的,所述热电发生器包括热端、冷端和散热器,所述热端安装在变压器温度监测部位,所述散热器设置冷端一侧,与该冷端直接进行热传导。在热端和冷端的温差达到一定程度后,热电发生器将热量转化为电能,经过后续电路的处理后给本装置自身供电。Further, the thermoelectric generator includes a hot end, a cold end and a radiator, the hot end is installed at the temperature monitoring part of the transformer, and the radiator is arranged on one side of the cold end, and conducts heat conduction directly with the cold end. When the temperature difference between the hot end and the cold end reaches a certain level, the thermoelectric generator converts the heat into electric energy, and supplies power to the device itself after processing by the subsequent circuit.
进一步的,所述能量管理电路包括升压电路、启动电路、稳压电路和储能器件。升压电路负责将热电发生器输出的较低电压升高,并存储在电容或充电电池中;启动电路控制能量的输出,当储能器件的电压升至高电压阈值时,启动电路控制打开后级电路,能量流向后级,供后续电路使用,当储能器件的电压降至低电压阈值时,启动电路控制关断后级电路,储能器件继续储能,周而复始地工作。Further, the energy management circuit includes a booster circuit, a start-up circuit, a voltage regulator circuit and an energy storage device. The boost circuit is responsible for boosting the lower voltage output by the thermoelectric generator and storing it in the capacitor or rechargeable battery; the start-up circuit controls the output of energy, and when the voltage of the energy storage device rises to the high voltage threshold, the start-up circuit controls to turn on the subsequent stage When the voltage of the energy storage device drops to the low voltage threshold, the start-up circuit controls the shutdown of the latter-stage circuit, and the energy storage device continues to store energy and work over and over again.
数据处理模块通过控制温度传感器定时采集测温数据,并通过信号调理及隔离模块将模拟信号转化成数字信号,并提供给数据处理模块进行处理,数据处理模块将处理过的数据通过无线发射器发出,由温度监测系统中的另一模块无线接收器接收,并上传至PC、APP或显示屏显示。The data processing module periodically collects temperature measurement data by controlling the temperature sensor, and converts the analog signal into a digital signal through the signal conditioning and isolation module, and provides it to the data processing module for processing. The data processing module sends the processed data through the wireless transmitter. , received by another module wireless receiver in the temperature monitoring system, and uploaded to PC, APP or display screen for display.
本实用新型的第二方面提供了一种智能变压器温度监测系统,如图2 和图3所示,包括如前所述的测温装置。A second aspect of the present invention provides an intelligent transformer temperature monitoring system, as shown in FIG. 2 and FIG. 3 , including the temperature measuring device as described above.
进一步的,该智能变压器温度监测系统还包括显示模块;所述无线接收器将接收到的温度数据传输至所述显示模块进行显示。Further, the intelligent transformer temperature monitoring system further includes a display module; the wireless receiver transmits the received temperature data to the display module for display.
进一步的,所述测温装置固定设置在智能变压器的各相绕组、铁芯和 /或各相电缆头上。Further, the temperature measuring device is fixedly arranged on each phase winding, iron core and/or each phase cable head of the smart transformer.
进一步的,还包括高温告警模块,当变压器本体的任一相绕组、铁芯和/或任一相电缆头的温度超过本体高温告警定值时,延时单元经一定延迟时间(如60s)延时确认,装置启动变压器本体风机,并同时发出本体高温告警信号。Further, it also includes a high temperature alarm module. When the temperature of any phase winding, iron core and/or any phase cable head of the transformer body exceeds the high temperature alarm set value of the main body, the delay unit will delay for a certain delay time (such as 60s). When confirmed, the device starts the fan of the transformer body, and at the same time sends out a high temperature alarm signal on the body.
进一步的,还包括冷却风机和风机控制模块;当变压器本体的任一相绕组、铁芯和/或任一相电缆头的温度超过本体高温风机启动定值时,延时单元经一定延迟时间(如60s)延时确认,所述风机控制模块控制冷却风机启动,发送启动本体风机遥信。Further, it also includes a cooling fan and a fan control module; when the temperature of any phase winding, iron core and/or any phase cable head of the transformer body exceeds the starting value of the high temperature fan of the main body, the delay unit passes a certain delay time ( If 60s) delay confirmation, the fan control module controls the cooling fan to start, and sends a remote signal to start the fan on the body.
进一步的,还包括保护控制模块;当变压器本体的任一相绕组、铁芯和/或任一相电缆头的温度超过本体高温保护定值时,延时单元经一定延迟时间(如60s)延时确认,所述保护控制模块控制变压器跳闸,退出变压器运行。Further, it also includes a protection control module; when the temperature of any phase winding, iron core and/or any phase cable head of the transformer body exceeds the high temperature protection set value of the body, the delay unit delays for a certain delay time (such as 60s). When confirmed, the protection control module controls the trip of the transformer and exits the operation of the transformer.
综上所述,本实用新型提供了一种测温装置和智能变压器温度监测系统,该测温装置包括:温度传感器、信号调理及隔离模块、数据处理模块、无线发射器、无线接收器、能量管理电路和热电发生器。该智能变压器温度监测系统包括该测温装置。本实用新型基于温差发电原理的热电发生模块可以为整套测温装置供电,同时温度传感器工作,将采集到的温度数据通过处理后经无线发射器和无线接收器上传至应用层,从而实现了变压器的温度在线实时监测。该测温装置体积小、维护成本低,对于维护变压器等电力设备的安全运行具有重要意义。In summary, the utility model provides a temperature measurement device and an intelligent transformer temperature monitoring system, the temperature measurement device includes: a temperature sensor, a signal conditioning and isolation module, a data processing module, a wireless transmitter, a wireless receiver, an energy Manage circuits and thermoelectric generators. The intelligent transformer temperature monitoring system includes the temperature measuring device. The thermoelectric generating module of the utility model based on the principle of thermoelectric power generation can supply power for the whole set of temperature measuring devices, while the temperature sensor works, and the collected temperature data is processed and uploaded to the application layer through the wireless transmitter and the wireless receiver, thereby realizing the transformer Online real-time monitoring of temperature. The temperature measuring device is small in size and low in maintenance cost, and is of great significance for maintaining the safe operation of power equipment such as transformers.
应当理解的是,本实用新型的上述具体实施方式仅仅用于示例性说明或解释本实用新型的原理,而不构成对本实用新型的限制。因此,在不偏离本实用新型的精神和范围的情况下所做的任何修改、等同替换、改进等,均应包含在本实用新型的保护范围之内。此外,本实用新型所附权利要求旨在涵盖落入所附权利要求范围和边界、或者这种范围和边界的等同形式内的全部变化和修改例。It should be understood that, the above-mentioned specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, but not to limit the present invention. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention should be included within the protection scope of the present invention. Furthermore, the appended claims of this invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalents of such scope and boundaries.
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CN115655515A (en) * | 2022-12-07 | 2023-01-31 | 四川赛康智能科技股份有限公司 | High-voltage switch cabinet online temperature measurement system based on energy information integrated transmission technology |
CN118999837A (en) * | 2024-10-24 | 2024-11-22 | 成都新航电测仪器仪表有限公司 | Front end detection circuit of box-type transformer |
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CN115655515A (en) * | 2022-12-07 | 2023-01-31 | 四川赛康智能科技股份有限公司 | High-voltage switch cabinet online temperature measurement system based on energy information integrated transmission technology |
CN118999837A (en) * | 2024-10-24 | 2024-11-22 | 成都新航电测仪器仪表有限公司 | Front end detection circuit of box-type transformer |
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