CN105527600B - A kind of current transformer condition monitoring system and method - Google Patents
A kind of current transformer condition monitoring system and method Download PDFInfo
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Abstract
Description
技术领域technical field
本发明属于电力系统状态监测领域，涉及一种电力设备的状态监测系统及方法，特别是一种电流互感器状态监测系统及方法。The invention belongs to the field of power system state monitoring, and relates to a state monitoring system and method of electric equipment, in particular to a state monitoring system and method of a current transformer.
背景技术Background technique
互感器是电力网正常运行、监视、计量、保护、控制等不可缺少的主要设备之一。它的存在，使高电压、大电流信息得以应用。互感器运行状态优劣，直接影响到电力系统测量、计量的准确性和继电保护、自动装置的可靠性，对电力系统安全运行影响极大。The transformer is one of the indispensable main equipment for the normal operation, monitoring, measurement, protection and control of the power grid. Its existence enables the application of high voltage and high current information. The quality of the transformer's operating status directly affects the accuracy of power system measurement and measurement, the reliability of relay protection and automatic devices, and has a great impact on the safe operation of the power system.
目前，在电力系统中，电流互感器的使用广泛，而针对电流互感器本身的状态监测问题没有很好的研究和解决。电流互感器本身存在着性能问题和故障问题，一旦电流互感器发生运行状态不正常和故障将严重影响电力系统的安全运行。因此，需要一种电流互感器状态监测系统及方法能够在线实时监测电流互感器的状态，对电流互感器的故障进行诊断，及早发现和解决电流互感器存在的故障，保证电流互感器的正常运行。At present, current transformers are widely used in power systems, but the problem of condition monitoring of current transformers has not been well studied and solved. The current transformer itself has performance problems and failure problems. Once the current transformer operates abnormally and fails, it will seriously affect the safe operation of the power system. Therefore, there is a need for a current transformer state monitoring system and method that can monitor the state of the current transformer in real time online, diagnose the faults of the current transformer, detect and solve the faults of the current transformer early, and ensure the normal operation of the current transformer .
发明内容Contents of the invention
本发明针对现有技术无法解决上述电流互感器存在的问题，提供了一种电流互感器状态监测系统及方法。电流互感器状态监测系统对电流互感器的运行状态进行在线监测，实时采集电流互感器的运行参数，能够实现站内电流互感器监测数据的无线传输，完成对电流互感器运行故障的识别，实时对电流互感器状态监测和故障预警，对电流互感器故障信息进行语音报警，将故障报警信息无线发送给工作人员及时处理，保证电流互感器的正常运行。The present invention provides a state monitoring system and method for a current transformer aiming at the problem that the existing technology cannot solve the above-mentioned current transformer. The current transformer status monitoring system monitors the running status of the current transformer online, collects the operating parameters of the current transformer in real time, realizes the wireless transmission of the monitoring data of the current transformer in the station, and completes the identification of the operation fault of the current transformer. Current transformer status monitoring and fault early warning, voice alarm for current transformer fault information, and wirelessly send fault alarm information to staff for timely processing to ensure the normal operation of current transformers.
为了完成上述目的，本发明采用以下技术方案。In order to accomplish the above object, the present invention adopts the following technical solutions.
一种电流互感器状态监测系统，其特征在于，所述电流互感器状态监测系统包括：控制器单元、电流互感器监测单元、温度监测单元、湿度监测单元、无线通信单元、监控处理单元、状态显示单元、语音报警单元、供电单元。所述控制器单元分别与电流互感器监测单元、湿度监测单元、无线通信单元、状态显示单元、语音报警单元、供电单元连接。所述供电单元分别与控制器单元、电流互感器监测单元、湿度监测单元、无线通信单元、状态显示单元、语音报警单元连接。所述温度监测单元、监控处理单元与无线通信单元连接。A current transformer state monitoring system, characterized in that the current transformer state monitoring system includes: a controller unit, a current transformer monitoring unit, a temperature monitoring unit, a humidity monitoring unit, a wireless communication unit, a monitoring processing unit, a state Display unit, voice alarm unit, power supply unit. The controller unit is respectively connected with the current transformer monitoring unit, the humidity monitoring unit, the wireless communication unit, the state display unit, the voice alarm unit and the power supply unit. The power supply unit is respectively connected with the controller unit, the current transformer monitoring unit, the humidity monitoring unit, the wireless communication unit, the state display unit, and the voice alarm unit. The temperature monitoring unit and the monitoring processing unit are connected with the wireless communication unit.
所述的控制器单元分别与电流互感器监测单元、湿度监测单元、无线通信单元、状态显示单元、语音报警单元、供电单元连接，接收处理电流互感器监测单元、湿度监测单元、无线通信单元、状态显示单元、语音报警单元、供电单元传输来的信息和数据，并向电流互感器监测单元、湿度监测单元、无线通信单元、状态显示单元、语音报警单元、供电单元传输命令信息和数据，控制相应单元完成相应功能。The controller unit is respectively connected with the current transformer monitoring unit, the humidity monitoring unit, the wireless communication unit, the state display unit, the voice alarm unit, and the power supply unit, and receives and processes the current transformer monitoring unit, the humidity monitoring unit, the wireless communication unit, The information and data transmitted by the status display unit, voice alarm unit, and power supply unit, and transmit command information and data to the current transformer monitoring unit, humidity monitoring unit, wireless communication unit, status display unit, voice alarm unit, and power supply unit, and control The corresponding unit completes the corresponding function.
所述的电流互感器监测单元与控制器单元连接，用于实现电流互感器二次侧电流的监测。电流互感器监测单元包括电流变换器、低通滤波器、极性转换器、模数转换器。The current transformer monitoring unit is connected with the controller unit for monitoring the secondary side current of the current transformer. The current transformer monitoring unit includes a current converter, a low-pass filter, a polarity converter, and an analog-to-digital converter.
所述的温度监测单元与无线通信单元连接，用于实时监测电流互感器的运行温度及互感器进线的母线上的温度。温度监测单元包括光纤光栅传感器、光分路盒、密封法兰、光纤接续盒、光纤光栅解调仪。The temperature monitoring unit is connected with the wireless communication unit for real-time monitoring of the operating temperature of the current transformer and the temperature on the bus of the transformer incoming line. The temperature monitoring unit includes a fiber grating sensor, an optical branch box, a sealing flange, a fiber splicing box, and a fiber grating demodulator.
所述的湿度监测单元与控制器单元连接，用于实时监测电流互感器的运行环境的湿度。湿度监测单元包括湿度传感器。The humidity monitoring unit is connected with the controller unit for real-time monitoring of the humidity of the operating environment of the current transformer. The humidity monitoring unit includes a humidity sensor.
所述的无线通信单元用于控制器单元、温度监测单元与监控处理单元进行实时的数据交换传输和数据处理，用于将监控处理单元处理的电流互感器故障信息向工作人员发送手机短信提示。无线通信单元包括ZigBee通信模块、短信发送模块。所述ZigBee通信模块分别安装在控制器单元、温度监测单元、监控处理单元上，实现控制器单元、温度监测单元与监控处理单元之间的无线通信。所述短信发送模块安装在监控处理单元上，实现监控处理单元向工作人员发送手机短信提示电流互感器故障信息。The wireless communication unit is used for real-time data exchange transmission and data processing between the controller unit, the temperature monitoring unit and the monitoring processing unit, and is used for sending the mobile phone short message reminder to the staff of the fault information of the current transformer processed by the monitoring processing unit. The wireless communication unit includes a ZigBee communication module and a short message sending module. The ZigBee communication module is respectively installed on the controller unit, the temperature monitoring unit and the monitoring processing unit to realize the wireless communication between the controller unit, the temperature monitoring unit and the monitoring processing unit. The short message sending module is installed on the monitoring and processing unit, so that the monitoring and processing unit can send the mobile phone short message to the staff to prompt the fault information of the current transformer.
所述的监控处理单元用于接收电流互感器运行现场控制器单元处理的监测数据和温度监测单元的温度数据，通过无线通信单元实现与控制器单元和温度监测单元的数据通信连接，完成对状态监测系统的数据处理、故障诊断及处理和人机交互功能。监控处理单元包括服务器、上位机。The monitoring and processing unit is used to receive the monitoring data processed by the current transformer operation site controller unit and the temperature data of the temperature monitoring unit, realize the data communication connection with the controller unit and the temperature monitoring unit through the wireless communication unit, and complete the monitoring of the status Data processing, fault diagnosis and processing, and human-computer interaction functions of the monitoring system. The monitoring processing unit includes a server and a host computer.
所述的状态显示单元与控制器单元连接，用于显示控制器单元处理的电流互感器运行的监测数据和监控处理单元处理分析后的温度数据和故障诊断数据。状态显示单元包括显示器。The state display unit is connected with the controller unit, and is used for displaying the monitoring data of the current transformer operation processed by the controller unit and the temperature data and fault diagnosis data processed and analyzed by the monitoring processing unit. The status display unit includes a display.
所述的语音报警单元与控制器单元连接，用于通过语音对当前电流互感器运行状态和故障情况进行语音播放和报警。语音报警单元包括：语音报警芯片、音箱。The voice alarm unit is connected with the controller unit, and is used for voice playing and alarming of the current operating status and fault conditions of the current transformer. The voice alarm unit includes: a voice alarm chip and a speaker.
所述的供电单元实现对控制器单元、电流互感器监测单元、湿度监测单元、无线通信单元、状态显示单元、语音报警单元提供合适的电能供电。供电单元包括开关电源。The power supply unit realizes to provide suitable power supply for the controller unit, the current transformer monitoring unit, the humidity monitoring unit, the wireless communication unit, the status display unit and the voice alarm unit. The power supply unit includes a switching power supply.
所述的温度监测单元和监控处理单元供电由监控室内市电供电。The temperature monitoring unit and the monitoring processing unit are powered by the mains in the monitoring room.
一种电流互感器状态监测方法，其特征在于，电流互感器状态监测方法包括以下步骤：电流互感器监测单元对电流互感器的二次侧电流进行实时监测，湿度监测单元实时监测电流互感器的运行环境的湿度。控制器单元对电流互感器监测单元、湿度监测单元的监测数据进行处理，通过无线通信单元与监控处理单元进行数据通信。A method for monitoring the state of a current transformer, characterized in that the method for monitoring the state of the current transformer comprises the following steps: the current transformer monitoring unit monitors the secondary side current of the current transformer in real time, and the humidity monitoring unit monitors the current transformer in real time Humidity of the operating environment. The controller unit processes the monitoring data of the current transformer monitoring unit and the humidity monitoring unit, and performs data communication with the monitoring processing unit through the wireless communication unit.
温度监测单元对电流互感器的进线母线上、电流互感器的二次侧出线接头处、电流互感器上的温度进行监测，通过无线通信单元与监控处理单元进行数据通信。The temperature monitoring unit monitors the temperature on the incoming bus of the current transformer, the secondary outlet joint of the current transformer, and the temperature on the current transformer, and performs data communication with the monitoring and processing unit through the wireless communication unit.
监控处理单元完成数据的存储和运行计算，并完成对状态监测系统的数据处理、故障诊断及处理和人机交互功能。监控处理单元通过无线通信单元与控制器单元进行数据通信，将数据处理、故障诊断结果反馈给控制器单元，控制器单元控制将监测处理的结果在状态显示单元中显示器上输出显示。The monitoring and processing unit completes the data storage and operation calculation, and completes the data processing, fault diagnosis and processing and human-computer interaction functions of the condition monitoring system. The monitoring processing unit performs data communication with the controller unit through the wireless communication unit, and feeds back the results of data processing and fault diagnosis to the controller unit, and the controller unit controls the output and display of the monitoring processing results on the display in the status display unit.
语音报警单元通过语音对当前电流互感器运行状态和故障情况进行语音播放和报警。The voice alarm unit performs voice playback and alarm on the current current transformer operating status and fault conditions through voice.
本发明的有益效果是：本发明一种电流互感器状态监测系统及方法，能够在线监测电流互感器的运行状态，能够实时采集电流互感器的运行参数，能够实现站内电流互感器监测数据的无线传输，能够对电流互感器的运行故障进行识别诊断，实现对电流互感器状态的监测和故障预警，对电流互感器故障信息进行语音报警，将故障报警信息无线发送给工作人员及时处理，保证电流互感器的正常运行。The beneficial effects of the present invention are: a current transformer state monitoring system and method of the present invention can monitor the operating state of the current transformer online, can collect the operating parameters of the current transformer in real time, and can realize the wireless monitoring data of the current transformer in the station. Transmission, can identify and diagnose the operation fault of the current transformer, realize the monitoring and fault warning of the current transformer state, give voice alarm to the fault information of the current transformer, and send the fault alarm information wirelessly to the staff for timely processing, ensuring the current Normal operation of the transformer.
附图说明Description of drawings
图1为本发明电流互感器状态监测系统整体结构功能示意图。Fig. 1 is a schematic diagram of the overall structure and functions of the current transformer state monitoring system of the present invention.
图中1、控制器单元，2、电流互感器监测单元，3、温度监测单元，4、湿度监测单元，5、无线通信单元，6、监控处理单元，7、状态显示单元，8、语音报警单元，9、供电单元。In the figure 1. Controller unit, 2. Current transformer monitoring unit, 3. Temperature monitoring unit, 4. Humidity monitoring unit, 5. Wireless communication unit, 6. Monitoring and processing unit, 7. Status display unit, 8. Voice alarm unit, 9, power supply unit.
具体实施方式Detailed ways
下面结合附图和实施例对本发明作进一步的说明，以具体阐述本发明的技术方案。The present invention will be further described below in conjunction with the accompanying drawings and embodiments, so as to specifically illustrate the technical solution of the present invention.
如图1所示，本发明一种电流互感器状态监测系统，其特征在于，所述电流互感器状态监测系统包括：控制器单元1、电流互感器监测单元2、温度监测单元3、湿度监测单元4、无线通信单元5、监控处理单元6、状态显示单元7、语音报警单元8、供电单元9。所述控制器单元1分别与电流互感器监测单元2、湿度监测单元4、无线通信单元5、状态显示单元7、语音报警单元8、供电单元9连接。所述供电单元9分别与控制器单元1、电流互感器监测单元2、湿度监测单元4、无线通信单元5、状态显示单元7、语音报警单元8连接。所述温度监测单元3、监控处理单元6与无线通信单元5连接。As shown in Figure 1, a current transformer state monitoring system of the present invention is characterized in that the current transformer state monitoring system includes: a controller unit 1, a current transformer monitoring unit 2, a temperature monitoring unit 3, a humidity monitoring unit unit 4 , wireless communication unit 5 , monitoring and processing unit 6 , status display unit 7 , voice alarm unit 8 , and power supply unit 9 . The controller unit 1 is respectively connected with the current transformer monitoring unit 2 , the humidity monitoring unit 4 , the wireless communication unit 5 , the status display unit 7 , the voice alarm unit 8 and the power supply unit 9 . The power supply unit 9 is respectively connected with the controller unit 1 , the current transformer monitoring unit 2 , the humidity monitoring unit 4 , the wireless communication unit 5 , the status display unit 7 , and the voice alarm unit 8 . The temperature monitoring unit 3 and the monitoring processing unit 6 are connected with the wireless communication unit 5 .
所述的控制器单元1采用TMS320F2812数据处理器作为控制和处理数据的处理器。The controller unit 1 adopts a TMS320F2812 data processor as a processor for controlling and processing data.
所述的电流互感器监测单元2包括电流变换器、低通滤波器、极性转换器、模数转换器。电流变换器安装在电流互感器的二次侧，对电流互感器二次侧电流进行变换后经过低通滤波器、极性转换器、模数转换器处理获取控制器单元1中TMS320F2812处理器能够处理的信号。The current transformer monitoring unit 2 includes a current converter, a low-pass filter, a polarity converter, and an analog-to-digital converter. The current converter is installed on the secondary side of the current transformer. After converting the current on the secondary side of the current transformer, it is processed by a low-pass filter, a polarity converter, and an analog-to-digital converter to obtain the TMS320F2812 processor in the controller unit 1. processed signal.
所述的温度监测单元3包括光纤光栅传感器、光分路盒、密封法兰、光纤接续盒、光纤光栅解调仪。光纤光栅传感器安装在电流互感器的进线母线上、电流互感器的二次侧出线接头处、电流互感器上。光纤光栅传感器依次连接光分路盒、密封法兰、光纤接续盒、光纤光栅解调仪，完成系统对温度的检测，通过无线通信单元5将温度数据传输到监控处理单元6中上位机和服务器。The temperature monitoring unit 3 includes a fiber grating sensor, an optical branch box, a sealing flange, a fiber splicing box, and a fiber grating demodulator. The fiber grating sensor is installed on the incoming busbar of the current transformer, the secondary side outlet joint of the current transformer, and the current transformer. The fiber grating sensor is sequentially connected to the optical splitter box, the sealing flange, the fiber splicing box, and the fiber grating demodulator to complete the temperature detection of the system, and transmit the temperature data to the upper computer and server in the monitoring and processing unit 6 through the wireless communication unit 5 .
所述的湿度监测单元4包括湿度传感器。湿度传感器安装在电流互感器附近，实时监测电流互感器的运行环境湿度。The humidity monitoring unit 4 includes a humidity sensor. The humidity sensor is installed near the current transformer to monitor the operating environment humidity of the current transformer in real time.
所述的无线通信单元5包括ZigBee通信模块、短信发送模块，实现控制器单元1、温度监测单元3与监控处理单元6进行实时的数据交换传输和数据处理，实现将监控处理单元6处理的电流互感器故障信息向工作人员发送手机短信提示。Described wireless communication unit 5 comprises ZigBee communication module, short message sending module, realizes that controller unit 1, temperature monitoring unit 3 and monitoring processing unit 6 carry out real-time data exchange transmission and data processing, realizes the electric current that monitoring processing unit 6 processes The fault information of the transformer will send a mobile phone text message to the staff.
所述的监控处理单元6包括服务器、上位机。服务器完成数据的存储和运行计算；上位机完成对状态监测系统的数据处理、故障诊断及处理和人机交互功能。The monitoring and processing unit 6 includes a server and a host computer. The server completes the data storage and operation calculation; the upper computer completes the data processing, fault diagnosis and processing and human-computer interaction functions of the condition monitoring system.
所述的状态显示单元7包括显示器。显示器与控制器单元1连接，完成对控制器单元1处理的电流互感器现场运行的状态监测数据和监控处理单元6处理分析后的温度数据和故障诊断数据进行显示。The status display unit 7 includes a display. The display is connected with the controller unit 1 to complete the display of the status monitoring data of the on-site operation of the current transformer processed by the controller unit 1 and the temperature data and fault diagnosis data processed and analyzed by the monitoring processing unit 6 .
所述的语音报警单元8包括语音报警芯片、音箱。语音报警芯片与控制器单元1连接，语音报警芯片与音箱连接，完成通过语音对当前电流互感器运行状态和故障情况进行语音播放和报警。The voice alarm unit 8 includes a voice alarm chip and a sound box. The voice alarm chip is connected with the controller unit 1, and the voice alarm chip is connected with the sound box to complete the voice playback and alarm of the current current transformer operating status and fault conditions through voice.
所述的供电单元9包括开关电源，通过开关电源对电流互感器运行现场的低电压电能进行变换得到适合状态监测系统现场运行的电压和电流。The power supply unit 9 includes a switching power supply, through which the low-voltage electric energy at the operating site of the current transformer is converted to obtain voltage and current suitable for the on-site operation of the condition monitoring system.
所述的温度监测单元3和监控处理单元6的供电由监控室内市电供电。The temperature monitoring unit 3 and the monitoring processing unit 6 are powered by the mains in the monitoring room.
一种电流互感器状态监测系统工作原理如下：电流互感器监测单元2对电流互感器的二次侧电流进行实时监测，湿度监测单元4实时监测电流互感器的运行环境的湿度。控制器单元1对电流互感器监测单元2、湿度监测单元4的监测数据进行处理，通过无线通信单元5与监控处理单元6进行数据通信。The working principle of a current transformer state monitoring system is as follows: the current transformer monitoring unit 2 monitors the secondary side current of the current transformer in real time, and the humidity monitoring unit 4 monitors the humidity of the operating environment of the current transformer in real time. The controller unit 1 processes the monitoring data of the current transformer monitoring unit 2 and the humidity monitoring unit 4 , and performs data communication with the monitoring processing unit 6 through the wireless communication unit 5 .
温度监测单元3对电流互感器的进线母线上、电流互感器的二次侧出线接头处、电流互感器上的温度进行监测，通过无线通信单元5与监控处理单元6进行数据通信。The temperature monitoring unit 3 monitors the temperature on the incoming bus of the current transformer, the outlet joint of the secondary side of the current transformer, and the temperature on the current transformer, and performs data communication with the monitoring and processing unit 6 through the wireless communication unit 5 .
监控处理单元6完成数据的存储和运行计算，并完成对状态监测系统的数据处理、故障诊断及处理和人机交互功能。监控处理单元6通过无线通信单元5与控制器单元1进行数据通信，将数据处理、故障诊断结果反馈给控制器单元1，控制器单元1控制将监测处理的结果在状态显示单元7中显示器上输出显示。The monitoring and processing unit 6 completes the data storage and operation calculation, and completes the data processing, fault diagnosis and processing and human-computer interaction functions of the condition monitoring system. The monitoring processing unit 6 performs data communication with the controller unit 1 through the wireless communication unit 5, and feeds back the results of data processing and fault diagnosis to the controller unit 1, and the controller unit 1 controls the result of the monitoring process to be displayed on the display in the status display unit 7. The output is displayed.
语音报警单元8通过语音对当前电流互感器运行状态和故障情况进行语音播放和报警。The voice alarm unit 8 performs voice playback and alarm to the current current transformer operating status and fault conditions through voice.
经过以上本发明电流互感器状态监测系统及方法实施例工作过程，完成了在线监测电流互感器的运行状态，能够实时采集电流互感器的运行参数，能够实现站内电流互感器监测数据的无线传输，能够对电流互感器的运行故障进行识别诊断，实现对电流互感器状态的监测和故障预警，对电流互感器故障信息进行语音报警，将故障报警信息无线发送给工作人员及时处理，保证电流互感器的正常运行。Through the above working process of the embodiment of the current transformer state monitoring system and method of the present invention, the online monitoring of the operating state of the current transformer is completed, the operating parameters of the current transformer can be collected in real time, and the wireless transmission of the monitoring data of the current transformer in the station can be realized. It can identify and diagnose the operation fault of the current transformer, realize the monitoring and fault warning of the current transformer state, give voice alarm to the fault information of the current transformer, and send the fault alarm information wirelessly to the staff for timely processing, ensuring that the current transformer of normal operation.
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| CN110040475B (en) * | 2019-04-30 | 2021-05-28 | 广东省计量科学研究院（华南国家计量测试中心） | Quality monitoring system and method for current transformer test assembly line |
| CN110196082A (en) * | 2019-07-11 | 2019-09-03 | 谢明仿 | A kind of environment monitoring device and method of electronic mutual inductor |
| CN110687493A (en) * | 2019-09-30 | 2020-01-14 | 国网江苏省电力有限公司盐城供电分公司 | An On-Line Detection System of Current Transformer Based on Multiple Signal Acquisition |
| CN112557991B (en) * | 2020-11-12 | 2024-05-28 | 珠海一多监测科技有限公司 | Current transformer fault diagnosis method based on molar number and temperature |
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