技术领域technical field
本实用新型涉及电力技术领域，特别是一种架空输电线路振动状态监测装置。The utility model relates to the technical field of electric power, in particular to a vibration state monitoring device for an overhead power transmission line.
背景技术Background technique
近年来，随着远距离、大容量输电线路的大量兴建，输电线路的安全运行备受重视。输电线路是由电线、金具、绝缘子和杆塔等连在一起的复杂系统。处在野外环境下，架空输电线路容易受到强风、暴雨、闪电等自然灾害的影响，容易发生各种事故，其中，由风振引起的事故最多，在风的作用下，输电线路时刻处于振动状态，这往往导致某些线路部件的疲劳损坏，如导地线的疲劳断股，金具、间隔棒及杆塔构件的疲劳损坏或磨损等，其中导线疲劳断股是架空输电线路普遍发生的问题，严重时需要对全线进行更换。In recent years, with the construction of a large number of long-distance and large-capacity transmission lines, the safe operation of transmission lines has attracted much attention. Transmission lines are complex systems connected by wires, fittings, insulators and towers. In the wild environment, overhead transmission lines are easily affected by natural disasters such as strong winds, rainstorms, and lightning, and are prone to various accidents. Among them, the most accidents are caused by wind vibration. Under the action of wind, transmission lines are always in a state of vibration , which often leads to fatigue damage of some line components, such as fatigue and broken strands of ground wires, fatigue damage or wear of fittings, spacers and tower components, etc. Among them, fatigue and broken strands of conductors are common problems in overhead transmission lines, which are serious The entire line needs to be replaced.
目前几乎所有的高压送电线路都受到风振的影响，尤其在线路大跨越上，因具有档距大、悬挂点高和水域开阔等特点，使风输给导地线的振动能量大大增加，导地线振动强度远较普通档距严重。一旦发生疲劳断股，将给电网安全运行带来严重危害，通常仅换线工程本身的直接损失可高达数百万元。At present, almost all high-voltage power transmission lines are affected by wind vibration, especially on large-span lines, because of the characteristics of large span, high suspension points and open waters, the vibration energy transmitted by the wind to the ground wire is greatly increased. The vibration intensity of the ground wire is far more serious than that of ordinary spans. Once fatigue breakage occurs, it will bring serious harm to the safe operation of the power grid. Usually, the direct loss of the line change project itself can be as high as several million yuan.
受风振动对架空线路造成的破坏是长期积累的，具有较强的隐蔽性，因此对其进行测量既能消除风振产生的隐患，又能为防振设计提供科学的依据。按照01/1741-2001《架空送电线路运行规程》中“大跨越段应定期对导、地线进行振动测量”的要求，现行测量方法是在一段时间〔如2周〕内使用测振仪器进行现场安装测量并记录相关数据。但因现场测试时间有限，测振仪器本身条件和现场工作环境等问题，测量结果有时代表性不高，缺乏实时性。目前仍然以人工定期巡检为主，劳动强度大，存在安全风险，此外，管理成本高、检测周期长、效率低下。一方面，输电线路所处的恶劣地理条件，使得电力线路的巡检工作非常困难。另一方面，由于社会和经济发展对电力供应质量的要求越来越高，促使输电线路的管理维护向信息化和智能化方向发展，而依靠传统的巡检方式获取的信息量非常有限，难以满足要求。The damage caused by wind vibration to overhead lines has been accumulated for a long time and has strong concealment. Therefore, measuring it can not only eliminate the hidden dangers caused by wind vibration, but also provide a scientific basis for anti-vibration design. In accordance with the requirements of "the large-span section should regularly measure the vibration of the conductor and ground wire" in the 01/1741-2001 "Operation Regulations for Overhead Power Transmission Lines", the current measurement method is to use a vibration measuring instrument within a period of time (such as 2 weeks) Conduct on-site installation measurements and record relevant data. However, due to the limited on-site test time, the condition of the vibration measuring instrument itself and the on-site working environment, the measurement results are sometimes not representative and lack real-time performance. At present, manual regular inspection is still the main method, which is labor-intensive and has safety risks. In addition, the management cost is high, the inspection cycle is long, and the efficiency is low. On the one hand, the harsh geographical conditions of the transmission line make the inspection of the power line very difficult. On the other hand, due to social and economic development, the requirements for the quality of power supply are getting higher and higher, which promotes the management and maintenance of transmission lines to develop in the direction of informationization and intelligence. fulfil requirements.
发明内容Contents of the invention
本实用新型所要解决的技术问题是提供一种架空输电线路振动状态监测装置，对线路的振动情况进行监测。The technical problem to be solved by the utility model is to provide a vibration state monitoring device for an overhead power transmission line to monitor the vibration of the line.
为解决上述技术问题，本实用新型所采用的技术方案是：一种架空输电线路振动状态监测装置，包括铁塔，在铁塔上架设有OPGW光缆，所述OPGW光缆中设有至少一根光纤作为光纤传感探头，光纤传感探头与DOVS光纤传感分析仪连接，DOVS光纤传感分析仪与监控计算机连接；所述铁塔上设有监控装置，所述监控装置与监控计算机无线连接。In order to solve the above technical problems, the technical solution adopted by the utility model is: a vibration state monitoring device for overhead power transmission lines, including an iron tower, an OPGW optical cable is set up on the iron tower, and at least one optical fiber is arranged in the OPGW optical cable as an optical fiber The sensing probe is connected with the DOVS optical fiber sensing analyzer, and the DOVS optical fiber sensing analyzer is connected with the monitoring computer; the iron tower is provided with a monitoring device, and the monitoring device is wirelessly connected with the monitoring computer.
优选的，DOVS光纤传感分析仪包括耦合器，所述耦合器与光电探测器连接，光电探测器与嵌入式数据采集卡连接；还包括窄带激光器，窄带激光器依次与调制器及掺铒光纤放大器连接，然后与耦合器连接，嵌入式数据采集卡与调制器连接；所述耦合器与光纤传感探头连接，所述嵌入式数据采集卡与监控计算机连接。Preferably, the DOVS fiber optic sensor analyzer includes a coupler, the coupler is connected with the photodetector, and the photodetector is connected with the embedded data acquisition card; it also includes a narrowband laser, and the narrowband laser is sequentially connected with the modulator and the erbium-doped fiber amplifier connected, and then connected with the coupler, the embedded data acquisition card is connected with the modulator; the coupler is connected with the optical fiber sensing probe, and the embedded data acquisition card is connected with the monitoring computer.
优选的，所述监控装置设于铁塔的上部，所述监控装置包括控制箱，在控制箱的顶部设有风速传感装置及风向传感装置，在控制箱内设有单片机，所述风速传感装置及风向传感装置均与单片机连接，所述控制箱内还设有GPRS无线通信模块，单片机通过GPRS无线通信模块与监控计算机无线连接。Preferably, the monitoring device is arranged on the upper part of the iron tower, the monitoring device includes a control box, a wind speed sensing device and a wind direction sensing device are arranged on the top of the control box, a single-chip microcomputer is arranged in the control box, and the wind speed sensor The sensing device and the wind direction sensing device are all connected with the single-chip microcomputer, and a GPRS wireless communication module is also provided in the control box, and the single-chip microcomputer is wirelessly connected with the monitoring computer through the GPRS wireless communication module.
优选的，所述控制箱下部的两侧设有摄像头，所述摄像头与单片机连接。Preferably, cameras are arranged on both sides of the lower part of the control box, and the cameras are connected to a single-chip microcomputer.
优选的，所述监控计算机还与气象数据库连接。Preferably, the monitoring computer is also connected to a meteorological database.
本实用新型提供一种架空输电线路振动状态监测装置，利用OPGW中的光纤作为传感单元，结合风速、风向传感器数据、视频监测数据，对架空输电线路的受风振动情况进行实时在线监测，为输电线路健康状态评价及线路运维提供数据支持。The utility model provides a vibration state monitoring device for an overhead transmission line, which uses the optical fiber in the OPGW as a sensing unit, combines wind speed, wind direction sensor data, and video monitoring data to perform real-time online monitoring of the wind vibration of the overhead transmission line. Provide data support for transmission line health status evaluation and line operation and maintenance.
附图说明Description of drawings
下面结合附图和实施例对本实用新型作进一步说明：Below in conjunction with accompanying drawing and embodiment the utility model is further described:
图1为本实用新型的结构示意图；Fig. 1 is the structural representation of the utility model;
图2为本实用新型DOVS光纤传感分析仪的结构示意图；Fig. 2 is the structural representation of DOVS optical fiber sensing analyzer of the present invention;
图3为本实用新型监控装置的结构示意图；Fig. 3 is the structural representation of the monitoring device of the present utility model;
图中：铁塔1，光缆2，DOVS光纤传感分析仪3，耦合器31，掺铒光纤放大器32，调制器33，窄带激光器34，嵌入式数据采集卡35，监控计算机4，监控装置5，控制箱51，风速传感装置52，风向传感器53，摄像头54。In the figure: iron tower 1, optical cable 2, DOVS optical fiber sensor analyzer 3, coupler 31, erbium-doped fiber amplifier 32, modulator 33, narrowband laser 34, embedded data acquisition card 35, monitoring computer 4, monitoring device 5, Control box 51, wind speed sensing device 52, wind direction sensor 53, camera 54.
具体实施方式Detailed ways
如图1-2所示，一种架空输电线路振动状态监测装置，包括铁塔1，在铁塔1上架设有OPGW光缆2，所述OPGW光缆2中设有至少一根光纤作为光纤传感探头，光纤传感探头与DOVS光纤传感分析仪3连接，DOVS光纤传感分析仪3与监控计算机4连接；所述铁塔1上设有监控装置5，所述监控装置5与监控计算机4无线连接。As shown in Figure 1-2, a vibration state monitoring device for an overhead power transmission line includes an iron tower 1, an OPGW optical cable 2 is erected on the iron tower 1, and at least one optical fiber is provided in the OPGW optical cable 2 as an optical fiber sensing probe. The optical fiber sensing probe is connected with the DOVS optical fiber sensing analyzer 3, and the DOVS optical fiber sensing analyzer 3 is connected with the monitoring computer 4; the iron tower 1 is provided with a monitoring device 5, and the monitoring device 5 is wirelessly connected with the monitoring computer 4.
优选的，DOVS光纤传感分析仪3包括耦合器31，所述耦合器31与光电探测器36连接，光电探测器36与嵌入式数据采集卡35连接；还包括窄带激光器34，窄带激光器34依次与调制器33及掺铒光纤放大器32连接，然后与耦合器31连接，嵌入式数据采集卡35与调制器33连接；所述耦合器31与光纤传感探头连接，所述嵌入式数据采集卡35与监控计算机4连接。Preferably, the DOVS fiber optic sensor analyzer 3 includes a coupler 31, the coupler 31 is connected with a photodetector 36, and the photodetector 36 is connected with an embedded data acquisition card 35; it also includes a narrowband laser 34, and the narrowband laser 34 is sequential Be connected with modulator 33 and erbium-doped fiber amplifier 32, then be connected with coupler 31, embedded data acquisition card 35 is connected with modulator 33; Described coupler 31 is connected with optical fiber sensing probe, and described embedded data acquisition card 35 is connected with monitoring computer 4.
窄线宽的光脉冲经环形器注入传感光纤后，携带应变传感信息的背向瑞利散射信号由光电探测器接收。当光纤上某个位置存在振动时，导致振动位置处光纤的折射率发生变化，从而引起传感位置处的瑞利散射光的相位变化，在接收端的光电探测器处，在一个脉冲宽度内的瑞利散射信号发生干涉，转化为探测得到的干涉信号强度的变化，从而实现对振动信号的探测和定位。在风的作用下，输电线路时刻处于振动状态。利用OPGW中的光纤，结合长距离分布式光纤振动传感技术，通过数据处理与信号分析，即可对输电线路的受风振动状态进行实时的分布式监控。After the light pulse with narrow line width is injected into the sensing fiber through the circulator, the back Rayleigh scattering signal carrying the strain sensing information is received by the photodetector. When there is vibration at a certain position on the fiber, the refractive index of the fiber at the vibration position changes, which causes the phase change of the Rayleigh scattered light at the sensing position. At the photodetector at the receiving end, within a pulse width The Rayleigh scattering signal interferes and is transformed into a change in the intensity of the detected interference signal, thereby realizing the detection and positioning of the vibration signal. Under the action of wind, the transmission line is in a state of vibration all the time. Using the optical fiber in the OPGW, combined with the long-distance distributed optical fiber vibration sensing technology, through data processing and signal analysis, the real-time distributed monitoring of the wind vibration state of the transmission line can be carried out.
优选的，如图3所示，所述监控装置5设于铁塔1的上部，所述监控装置5包括控制箱51，在控制箱51的顶部设有风速传感装置52及风向传感装置53，在控制箱51内设有单片机，所述风速传感装置52及风向传感装置53均与单片机连接，所述控制箱51内还设有GPRS无线通信模块，单片机通过GPRS无线通信模块与监控计算机4无线连接。所述风速传感器采用PG-CG/FS风速传感器，所述风向传感器采用PG-CG/FS风向传感器，单片机采用STC15W4K56S4单片机。通过在铁塔上设置监测装置，进一步实现对线路的准确监测，结合风速、风向进行分析。Preferably, as shown in Figure 3, the monitoring device 5 is arranged on the top of the iron tower 1, the monitoring device 5 includes a control box 51, and the top of the control box 51 is provided with a wind speed sensing device 52 and a wind direction sensing device 53 , be provided with single-chip microcomputer in control box 51, described wind speed sensing device 52 and wind direction sensing device 53 are all connected with single-chip microcomputer, also be provided with GPRS wireless communication module in described control box 51, single-chip computer communicates with monitoring through GPRS wireless The computer 4 is connected wirelessly. The wind speed sensor adopts PG-CG/FS wind speed sensor, the wind direction sensor adopts PG-CG/FS wind direction sensor, and the single-chip microcomputer adopts STC15W4K56S4 single-chip microcomputer. By installing a monitoring device on the iron tower, the accurate monitoring of the line can be further realized, and the wind speed and wind direction can be analyzed in combination.
优选的，所述控制箱51下部的两侧设有摄像头54，所述摄像头54与单片机连接。在发现异常时，可通过摄像头拍摄图像，回传至监控计算机。Preferably, the two sides of the lower part of the control box 51 are provided with a camera 54, and the camera 54 is connected with a single-chip microcomputer. When an abnormality is found, the image can be taken by the camera and sent back to the monitoring computer.
优选的，所述监控计算机4还与气象数据库连接。Preferably, the monitoring computer 4 is also connected to a meteorological database.
本实用新型可利用OPGW中的光纤单元中的一芯单模光纤，实现对架空导线受风振动的连续分布式实时在线监测，到导线疲劳寿命进行预测，并可监测、计算出架空导线沿途的风场分布和实时风速，为架空导线的策略化检修维护提供科学数据支撑，降低人工巡线的工作量。同时，光纤传感单元不受电磁干扰，也没有电子元器件老化问题，长期稳定可靠。此外，系统部署简单，仅利用原有导线或接地线中的其中一芯单模光纤即可实现连续分布式传感信号监测，置于导线内的光纤既用来测量数据，又可用来传输信号，完全不受环境影响，也不需要利用无线公网传输监测信号，数据安全稳定。The utility model can utilize a single-core single-mode optical fiber in the optical fiber unit in the OPGW to realize the continuous distributed real-time online monitoring of the wind vibration of the overhead wire, to predict the fatigue life of the wire, and to monitor and calculate the fatigue life of the overhead wire along the way. Wind field distribution and real-time wind speed provide scientific data support for the strategic maintenance of overhead conductors and reduce the workload of manual line inspection. At the same time, the optical fiber sensing unit is not subject to electromagnetic interference, and there is no aging problem of electronic components, so it is stable and reliable for a long time. In addition, the system deployment is simple, and only one of the core single-mode optical fibers in the original wire or ground wire can be used to realize continuous distributed sensing signal monitoring. The optical fiber placed in the wire is used for both measuring data and transmitting signals , It is not affected by the environment at all, and there is no need to use the wireless public network to transmit monitoring signals, and the data is safe and stable.
上述的实施例仅为本实用新型的优选技术方案，而不应视为对于本实用新型的限制，本实用新型的保护范围应以权利要求记载的技术方案，包括权利要求记载的技术方案中技术特征的等同替换方案为保护范围。即在此范围内的等同替换改进，也在本实用新型的保护范围之内。Above-mentioned embodiment is only the preferred technical scheme of the present utility model, and should not be considered as the restriction to the present utility model, and the protection scope of the present utility model should be the technical solution described in the claims, including the technology in the technical solution described in the claims. An equivalent alternative to the feature is the scope of protection. That is, equivalent replacement and improvement within this scope are also within the protection scope of the present utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721818099.1UCN207866359U (en) | 2017-12-22 | 2017-12-22 | A kind of overhead transmission line Vibration Condition Monitoring device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721818099.1UCN207866359U (en) | 2017-12-22 | 2017-12-22 | A kind of overhead transmission line Vibration Condition Monitoring device |
| Publication Number | Publication Date |
|---|---|
| CN207866359Utrue CN207866359U (en) | 2018-09-14 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721818099.1UExpired - Fee RelatedCN207866359U (en) | 2017-12-22 | 2017-12-22 | A kind of overhead transmission line Vibration Condition Monitoring device |
| Country | Link |
|---|---|
| CN (1) | CN207866359U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486946A (en)* | 2020-05-07 | 2020-08-04 | 南京电博机器人技术有限公司 | Online monitoring system for vibration of power transmission line |
| WO2021052022A1 (en)* | 2019-04-26 | 2021-03-25 | 深圳市豪视智能科技有限公司 | Electrical cable vibration detection method and related product |
| EP4160166A1 (en)* | 2021-09-30 | 2023-04-05 | Fujitsu Limited | Estimation program, estimation device and estimation method |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021052022A1 (en)* | 2019-04-26 | 2021-03-25 | 深圳市豪视智能科技有限公司 | Electrical cable vibration detection method and related product |
| CN111486946A (en)* | 2020-05-07 | 2020-08-04 | 南京电博机器人技术有限公司 | Online monitoring system for vibration of power transmission line |
| EP4160166A1 (en)* | 2021-09-30 | 2023-04-05 | Fujitsu Limited | Estimation program, estimation device and estimation method |
| US11754424B2 (en) | 2021-09-30 | 2023-09-12 | Fujitsu Limited | Computer-readable non-transitory medium, estimation device and estimation method |
| Publication | Publication Date | Title |
|---|---|---|
| CN203310540U (en) | Temperature and strain on-line monitoring device integrating optical phase conductors | |
| CN101614602B (en) | Method and device for monitoring power transmission line | |
| CN103048588B (en) | Method and system for on-line locating power cable fault | |
| CN101852659B (en) | Oil derrick stress data acquisition system based on fiber Bragg grating sensor network | |
| CN202041178U (en) | Transmission line sag online monitoring system | |
| CN102840928B (en) | An online temperature monitoring system and monitoring method for optical fiber composite phase line | |
| CN206113994U (en) | Utility tunnel's monitoring devices | |
| CN203163769U (en) | Overhead line safety monitoring system based on distributed fiber sensors | |
| CN202141770U (en) | Cable carrying capacity calculation and early warning system based on distributed optical fiber temperature measurement | |
| CN118190042B (en) | Power transmission line service state monitoring and early warning system and method based on multi-core optical fibers | |
| CN207866359U (en) | A kind of overhead transmission line Vibration Condition Monitoring device | |
| CN101949986A (en) | System for online monitoring fiber grating composite insulator and using method thereof | |
| CN104913727A (en) | Method for measuring ice thickness of optical fiber composite overhead ground wire in distributed manner | |
| CN107817743A (en) | A kind of bridge security online monitoring system | |
| CN103017828A (en) | On-line monitoring system of fatigue damage to electric transmission line conductor by breeze vibration | |
| CN104121945A (en) | Distributed sag online monitoring system and method for optical fiber composite overhead ground wire | |
| CN202511922U (en) | Oppc optical cable stress and carrying capacity measuring and calculating system | |
| CN114235017A (en) | Photoelectric fusion long-distance monitoring device and method for power transmission line | |
| CN118971963A (en) | Optical cable external loss risk analysis and early warning system and method | |
| CN114842603A (en) | A monitoring and early warning system for preventing external breakage of high-voltage cables | |
| CN203534743U (en) | Optical fiber sensing locking rod stress detection device | |
| CN201903411U (en) | Power equipment temperature online monitoring system based on fiber bragg grating temperature sensor | |
| CN106091945A (en) | The distributed sag on-line monitoring system of OPGW and method | |
| CN207300447U (en) | Bridge security monitoring device based on optical fiber sensing technology | |
| CN101750262A (en) | Quartz sensor system for measuring deposit density of high-tension transmission line |
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20180914 Termination date:20191222 |