WO2014169820A1 - Point-type high-voltage power transmission line optical fiber detection network - Google Patents

Point-type high-voltage power transmission line optical fiber detection network Download PDF

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Publication number
WO2014169820A1
WO2014169820A1 PCT/CN2014/075501 CN2014075501W WO2014169820A1 WO 2014169820 A1 WO2014169820 A1 WO 2014169820A1 CN 2014075501 W CN2014075501 W CN 2014075501W WO 2014169820 A1 WO2014169820 A1 WO 2014169820A1
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WIPO (PCT)
Prior art keywords
optical
path selection
selection switch
optical path
wavelength division
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PCT/CN2014/075501
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French (fr)
Chinese (zh)
Inventor
姜国义
周岩
刘海波
李文鹏
杨志华
孟辉
华亮亮
王军
陈勇
王龙华
钱进
覃兆宇
柯磊
王磊
吴春久
Original Assignee
国家电网公司
国网内蒙古东部电力有限公司
国网电力科学研究院武汉南瑞有限责任公司
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Priority claimed from CN201310135361.2A external-priority patent/CN103259609B/en
Priority claimed from CN2013201979161U external-priority patent/CN203203611U/en
Application filed by 国家电网公司, 国网内蒙古东部电力有限公司, 国网电力科学研究院武汉南瑞有限责任公司 filed Critical 国家电网公司
Publication of WO2014169820A1 publication Critical patent/WO2014169820A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables

Definitions

  • the invention relates to the technical field of optical fiber transmission, and in particular to a fiber inspection network for a point type high voltage transmission line.
  • the main targets for monitoring the operation status of high-voltage transmission lines include wire temperature measurement, wire breeze vibration, insulation sub-state, and tower inclination angle. By monitoring these quantities, some factors that cause major disasters on the transmission line can be prevented.
  • Existing condition monitoring systems usually only target one or several types of monitoring, such as tower tilting devices, wire breeze vibration devices, etc., using electrical signal sensors to transmit data over the wireless network to the receiving server for processing.
  • the induction and transmission of electrical signal sensors inevitably have problems that are susceptible to strong electromagnetic fields and affect measurement accuracy and insulation performance.
  • the system is hung on the high-voltage end. In the event of a malfunction, it is basically impossible to perform maintenance operations.
  • fiber grating sensors are commonly used for measurements that require precise positioning such as wire breeze vibration, wire temperature measurement, and tower tilt.
  • Each grating occupies a certain frequency band within the measured range.
  • the usual source bandwidth is only 40 nm, so the total number of gratings used is limited, that is, the number of sensors used to monitor the status of the wires and the tower is limited.
  • the number of required sensors exceeds the number of gratings allowed in the range of the light source. It is necessary to consider the way of switching the optical switches and multiplex the way to detect the grating values.
  • the existing optical sensing systems are usually based on a base tower to monitor a single or several sensing quantities, and the obtained information is sent to the server wirelessly.
  • the above-mentioned one-base tower-based detection method obviously brings about a problem of high detection cost and low detection efficiency.
  • the high-voltage power will interfere with the signal parameters transmitted wirelessly, which reduces the overall detection accuracy.
  • the object of the present invention is to provide a point-type high-voltage transmission line optical fiber detection network for the above technical problem, which can improve the micro-wind vibration, the wire temperature, and the inclination angle of the tower of the high-voltage transmission line.
  • the detection accuracy of the degree improves the efficiency of the above parameter detection.
  • a point-type high voltage transmission line fiber inspection network designed by the present invention is characterized in that it comprises a substation control unit, a first wavelength division multiplexer, a second wavelength division multiplexer, a three-wavelength division multiplexer and two base tower monitoring subsystems, wherein the substation control unit includes a communication control module, an optical signal demodulation module, and a fourth wavelength division multiplexer, each of the bases
  • the tower monitoring subsystem includes a first optical path selection switch, a second optical path selection switch, a third optical path selection switch, a photoelectric conversion module, a controller, a first electro-optical conversion module, a second electro-optical conversion module, and a tower state sensor group, wherein An optical path selection switch is connected to the controller through the photoelectric conversion module, and the controller is connected to the second optical path selection switch through the first electro-optical conversion module, and the controller is connected to the third optical path selection switch through the second electro-optical conversion module, and the first optical path selection switch is also directly connected with The second
  • the communication control module includes a substation controller and a third electro-optical conversion module
  • the optical signal demodulation module includes a broadband light source, an optical demodulator, and a circulator, wherein the substation controller is accessed through the third electro-optical conversion module
  • the fourth wavelength division multiplexer, the broadband source and the optical demodulator are all connected to the fourth wavelength division multiplexer through the circulator.
  • the tower state sensor group includes a fiber composite insulator mechanical property measuring sensor, a fiber tilt angle sensor, a tower strain fiber measuring sensor, a wire vibration fiber measuring sensor, a wire fiber temperature measuring sensor, and a power fitting fiber temperature measuring sensor.
  • the fourth wavelength division multiplexer is connected to the first wavelength division multiplexer through an OPGW (Optical Fiber Composite Overhead Ground Wire) optical cable; the second wavelength division multiplexer The third wavelength division multiplexer is connected through an 0PGW fiber optic cable.
  • OPGW Optical Fiber Composite Overhead Ground Wire
  • the optical fiber composite insulator mechanical property measuring sensor is disposed in a pole insulator, the optical fiber There are two tilt angle sensors, one fiber tilt angle sensor is set in the tower tower head, and the other fiber tilt angle sensor is set in the middle of the tower.
  • All the monitoring devices in the present invention are mostly passive, which solves the power problem that is difficult to solve in the traditional line monitoring technology;
  • the optical fiber sensor is light-mediated, is a completely passive sensing method, and is not affected by the electromagnetic environment.
  • the fiber itself is insulated and does not affect the insulation level of the line compared to conventional electrical sensors. Therefore, the use of fiber optic sensors can greatly improve the stability of the monitoring system and the reliability of the line operation.
  • the invention transmits optical signals through the OPGW optical cable, which facilitates distributed acquisition and centralized processing of signals, reduces construction difficulty and improves the degree of network reuse.
  • Figure 1 is a block diagram showing the structure of the present invention.
  • a first wavelength division multiplexer, a second second wavelength division multiplexer, a 3-communication control module, a 4-optical signal demodulation module, and a fifth-wavelength division multiplexing 6 - first optical path selection switch, 7 second optical path selection switch, 8 third optical path selection switch, 9 - photoelectric conversion module, 10 - controller, 11 first electro-optical conversion module, 12 - fourth wave division multi-channel Multiplexer, 13-substation controller, 14-broadband light source, 15-photodemodulator, 16-circulator, 17-fiber composite insulator mechanical performance measuring sensor, 18-fiber tilt angle sensor, 19-column strain fiber measuring sensor, 20—Wire vibration fiber measuring sensor, 21 wire optical fiber temperature measuring sensor, 22—electric power fitting fiber temperature measuring sensor, 23 second electro-optical conversion module, 24 third electro-optical conversion module.
  • the point type high voltage transmission line optical fiber detection network shown in FIG. 1 includes a substation control unit, a first wavelength division multiplexer 1, a second wavelength division multiplexer 2, and a third wavelength division multiplexing. And two base tower monitoring subsystems, wherein the substation control unit comprises a communication control module 3, an optical signal demodulation module 4 and a fourth wavelength division multiplexer 12, each of the base tower monitors
  • the system includes a first optical path selection switch 6, a second optical path selection switch 7, a third optical path selection switch 8, a photoelectric conversion module 9, a controller 10, a first electro-optical conversion module 11, a second electro-optical conversion module 23, and a tower state sensor group.
  • the first optical path selection switch 6 is connected to the controller 10 through the photoelectric conversion module 9.
  • the controller 10 is connected to the second optical path selection switch 7 through the first electro-optical conversion module 11, and the controller 10 is connected to the third through the second electro-optical conversion module 23.
  • the optical path selection switch 8, the first optical path selection switch 6 is also directly connected to the second optical path selection switch 7, and the signal output end of the tower state sensor group is connected to the third optical path selection.
  • the switch 8 is connected; the communication control module 3 and the optical signal demodulation module 4 are connected to the first wavelength division multiplexer 1 via the fourth wavelength division multiplexer 12, and the first wavelength division multiplexer 1 is connected to the first a first optical path selection switch 6 and a third optical path selection switch 8 of a base tower monitoring subsystem, the second optical path selection switch 7 and the third optical path selection switch 8 of the first base tower monitoring subsystem pass the second wavelength division
  • the multiplexer 2 is connected to the third wavelength division multiplexer 5, and the third wavelength division multiplexer 5 is connected to the first optical path selection switch 6 and the third optical path selection switch of the second base tower monitoring subsystem, respectively.
  • the above technical solution describes a basic unit of the point type high-voltage transmission line optical fiber detection network.
  • multiple base tower monitoring subsystems can be connected, and the number of access points of the base tower monitoring subsystem is determined according to the following method:
  • the insertion loss of the multiplexer is about 0.5dB, and the insertion loss of the optical path selection switch is about 0.3dB.
  • the light attenuation of a base tower system is about 1.6dB, assuming that the length of the fiber between the two base towers is about 500 meters.
  • the optical transmission loss is about 0.25dB/km. Considering the back and forth, the loss is about 0.25dB. In this way, the optical loss of a base tower is about 1.9dB.
  • the resolution power of the optical demodulator is about 0.5dBm, and the number of towers that can be cascaded is about 12 bases. If you increase the optical power of the substation mainframe, you can carry out more tower cascading.
  • the communication control module 3 includes a substation controller 13 and a third electro-optical conversion module 24, and the optical signal demodulation module 4 includes a broadband light source 14, an optical demodulator 15 and a circulator 16, wherein the substation controller 13 passes
  • the third electro-optical conversion module 24 is connected to the fourth wavelength division multiplexer 12, and the broadband Both the light source 14 and the optical demodulator 15 are coupled to the fourth wavelength division multiplexer 12 via the circulator 16.
  • the substation controller 13 is a control signal for transmitting and receiving.
  • the broadband light source 14 is a light emitting device for emitting light waves with a wavelength of 1550 nm.
  • the optical demodulator 15 is an optical path demodulating device for receiving information of a wavelength of light and converting the wavelength information. Information for temperature or strain.
  • the circulator 16 is a non-transparent device of multi-port input and output, so that optical signals can only be transmitted sequentially along a prescribed port.
  • the tower state sensor group includes a fiber composite insulator mechanical property measuring sensor 17, a fiber tilt angle sensor 18, a tower strain fiber measuring sensor 19, a wire vibrating fiber measuring sensor 20, a wire fiber temperature measuring sensor 21, and a power fitting fiber temperature.
  • the sensor 22 is measured.
  • the fourth wavelength division multiplexer 12 is connected to the first wavelength division multiplexer 1 through an OPGW optical cable; the second wavelength division multiplexer 2 is connected to the third wavelength division multiple path through an OPGW optical cable.
  • Multiplexer 5 is connected to the fourth wavelength division multiplexer 12 through an OPGW optical cable; the second wavelength division multiplexer 2 is connected to the third wavelength division multiple path through an OPGW optical cable.
  • the fiber composite insulator mechanical property measuring sensor 17 is disposed in the tower insulator, and the fiber tilt angle sensor 18 has two, one fiber tilt angle sensor 18 is disposed at the tower tower head, and another fiber tilt angle sensor 18 is disposed at the tower. Central.
  • the fiber tilt angle sensor 18 can monitor the tilt of the tower with a resolution of 0.05 degrees, a measuring range of -10 to 10 degrees, and an adaptation temperature range of -20 ° C to 120 ° C.
  • the wire optical fiber temperature measuring sensor 21 and the electric power fiber optical fiber temperature measuring sensor 22 are respectively used for measuring the temperature of the wire and the metal fitting on the base tower.
  • the temperature range of the above two sensors is -20 ° C ⁇ 12 (TC, the measuring accuracy is -0.5 ⁇ 0.5 °C.
  • the wire vibrating fiber optic measuring sensor 20 is mounted on the transmission line.
  • the measuring amplitude of the sensor is 1500 ⁇ ⁇ and the measuring frequency is 200 ⁇ or less. This sensor is used to measure the vibration of the wire caused by the breeze.
  • the tower strain fiber optic measurement sensor 19 is mounted on the tower body. Each sensor has a measurement range of -1500 ⁇ 1500 ⁇ ⁇ with a resolution of 1 ⁇ ⁇ and an adaptation temperature range of -20 ° C to 120 ° C. To monitor the strain of the tower.
  • a fourth wavelength division multiplexer 12 can be used in the substation control unit to couple the optical communication control signal of the 1310 nm band and the optical sensing signal of the 1550 nm band to the one-core optical fiber.
  • the first base tower monitoring subsystem separates the communication control signal and the optical sensing signal by the first wavelength division multiplexer 1, and the optical communication control signal of the 1310 nm band enters the photoelectric conversion module 9 through the first optical path selection switch 6, and converts The electrical communication control signal is input to the controller 10, and the controller 10 determines whether the communication control signal measures the base tower.
  • the controller 10 outputs the sensor control signal and is converted into an optical signal by the second electro-optical conversion module 23, and then passes through The third optical path selection switch 8 is sent to the tower state sensor group, and the optical sensing signal of the 1550 nm band is sent to the tower state sensor group through the third optical path selection switch 8, and the tower state sensor group returns the detected signal to the original path of the OPGW cable.
  • Substation control unit If the controller 10 determines that the communication control signal is not the measurement of the base tower, the electrical communication control signal is converted into an optical signal and then transmitted to the subsequent base tower monitoring subsystem via the second optical path selection switch 7, and the optical sensing signal is also passed through the third The optical path selection switch 8 is delivered to a subsequent base tower monitoring subsystem.
  • the second base tower parameter is detected in the same manner as described above when the second base tower monitoring subsystem is detected.
  • the present invention uses a core fiber as the communication sensing channel, and actually connects the two base tower monitoring subsystems on the fiber in series, which causes the first base tower monitoring subsystem to fail, and may be followed by a normal base tower.
  • the monitoring subsystem is also unable to communicate with the substation mainframe.
  • the optical path selection switch designed on the tower uses an unsteady optical switch. When the equipment on the first base tower fails, the system is not stable. The optical switch is switched to the default state, that is, the first optical path selection switch 6 and the second optical path selection switch 7 are directly connected in FIG.
  • the 1310 nm band optical signal passes through the first optical path selection switch 6 and the second optical path selection switch 7 and is
  • the two-wavelength division multiplexer 2 and the third wavelength division multiplexer 5 enter the second base tower monitoring subsystem; the third optical path selection switch 8 and the optical fiber straight-through connected to the second wavelength division multiplexer 2 , passing the optical signal in the 1550 nm band and entering the second base tower monitoring subsystem.
  • Such a faulty base tower monitoring subsystem does not affect the communication of the system on the subsequent tower and the passage of the sensing signals.

Abstract

The present invention discloses a point-type high-voltage power transmission line optical fiber detection network, comprising a substation control unit, a first wavelength-division multiplexer, a second wavelength-division multiplexer, a third wavelength-division multiplexer, and two base tower monitoring subsystems; the substation control unit comprising a communications control module, an optical signal demodulation module, and a fourth wavelength-division multiplexer; each base tower monitoring subsystem comprising a first optical path selection switch, a second optical path selection switch, a third optical path selection switch, an optical-to-electrical conversion module, a controller, a first electrical-to-optical conversion module, a second electrical-to-optical conversion module, and a tower status sensor array. The present invention improves accuracy in detecting wire vibration due to breeze, wire temperature, and tower angle of inclination in high-voltage power transmission lines, and improves efficiency in detecting the described parameters.

Description

一种点式高压输电线路光纤检测网络  Point type high voltage transmission line optical fiber detection network
技术领域 Technical field
本发明涉及光纤传输技术领域， 具体涉及一种点式高压输电线路光纤检测 网络。 技术背景  The invention relates to the technical field of optical fiber transmission, and in particular to a fiber inspection network for a point type high voltage transmission line. technical background
高压输电线路运行状态监控的主要对象包括导线测温、 导线微风振动、 绝 缘子状态、 杆塔倾斜角度等， 通过对这些量的监测能预防一些对输电线路产生 重大灾害的因素。 现有的状态监测系统通常只针对一种或几种监测量， 如杆塔 测量倾斜装置、 导线微风振动装置等， 采用电信号传感器， 通过无线网络将数 据远传至接收服务器进行处理。但电信号传感器的感应与传输不可避免地存在 易受强电磁场干扰而影响测量精度及绝缘性能的问题。特别对于高压端的传感 器， 将系统全部挂在高压端， 万一发生故障， 基本上不可能进行维修操作。  The main targets for monitoring the operation status of high-voltage transmission lines include wire temperature measurement, wire breeze vibration, insulation sub-state, and tower inclination angle. By monitoring these quantities, some factors that cause major disasters on the transmission line can be prevented. Existing condition monitoring systems usually only target one or several types of monitoring, such as tower tilting devices, wire breeze vibration devices, etc., using electrical signal sensors to transmit data over the wireless network to the receiving server for processing. However, the induction and transmission of electrical signal sensors inevitably have problems that are susceptible to strong electromagnetic fields and affect measurement accuracy and insulation performance. Especially for the high-voltage sensor, the system is hung on the high-voltage end. In the event of a malfunction, it is basically impossible to perform maintenance operations.
实际应用中， 对需要精确定位的监测如导线微风振动、 导线测温、 杆塔倾 斜等的测量通常使用光纤光栅传感器。每一个光栅在测量的范围内占用一定的 频带， 通常使用的光源带宽只有 40nm， 这样总共使用的光栅数量就受到限制， 即在监测导线以及杆塔状态时使用的传感器数量受到限制。 为了建立多基重点 杆塔及线路的监测， 所需传感器数量超过光源范围能允许的光栅数量， 就要考 虑采用光开关切换的方式， 分多路来巡回检测光栅值。 由于上述限制， 现有的 光传感系统通常都是以一个基杆塔为基础， 进行某一单项或几项传感量的监 测， 得到的信息通过无线方式发送到服务器上。 上述一个基杆塔为基础的检测 方式明显会带来检测成本高， 检测效率低的问题。 同时高压电会对无线传输的 信号参数干扰， 降低了整体的检测精度。 发明内容  In practical applications, fiber grating sensors are commonly used for measurements that require precise positioning such as wire breeze vibration, wire temperature measurement, and tower tilt. Each grating occupies a certain frequency band within the measured range. The usual source bandwidth is only 40 nm, so the total number of gratings used is limited, that is, the number of sensors used to monitor the status of the wires and the tower is limited. In order to establish the monitoring of multi-base key towers and lines, the number of required sensors exceeds the number of gratings allowed in the range of the light source. It is necessary to consider the way of switching the optical switches and multiplex the way to detect the grating values. Due to the above limitations, the existing optical sensing systems are usually based on a base tower to monitor a single or several sensing quantities, and the obtained information is sent to the server wirelessly. The above-mentioned one-base tower-based detection method obviously brings about a problem of high detection cost and low detection efficiency. At the same time, the high-voltage power will interfere with the signal parameters transmitted wirelessly, which reduces the overall detection accuracy. Summary of the invention
本发明的目的是针对上述技术问题， 提供一种点式高压输电线路光纤检测 网络， 该检测网络能提高高压输电线路导线微风振动、 导线温度、 杆塔倾斜角 度的检测精度， 提高上述参数检测的效率。 The object of the present invention is to provide a point-type high-voltage transmission line optical fiber detection network for the above technical problem, which can improve the micro-wind vibration, the wire temperature, and the inclination angle of the tower of the high-voltage transmission line. The detection accuracy of the degree improves the efficiency of the above parameter detection.
为实现此目的， 本发明所设计的点式高压输电线路光纤检测网络， 其特征 在于： 它包括变电站控制单元、 第一波分多路复用器、 第二波分多路复用器、 第三波分多路复用器和两个基杆塔监测子系统， 其中， 所述变电站控制单元包 括通信控制模块、 光信号解调模块和第四波分多路复用器， 所述每个基杆塔监 测子系统包括第一光路选择开关、 第二光路选择开关、 第三光路选择开关、 光 电转换模块、 控制器、 第一电光转换模块、 第二电光转换模块和杆塔状态传感 器组， 其中， 第一光路选择开关通过光电转换模块连接控制器， 控制器通过第 一电光转换模块连接第二光路选择开关， 控制器通过第二电光转换模块连接第 三光路选择开关， 第一光路选择开关还直接与第二光路选择开关连接， 杆塔状 态传感器组的信号输出端连接第三光路选择开关； 所述通信控制模块和光信号 解调模块通过第四波分多路复用器连接第一波分多路复用器， 所述第一波分多 路复用器分别连接第一个基杆塔监测子系统的第一光路选择开关和第三光路 选择开关， 所述第一个基杆塔监测子系统的第二光路选择开关和第三光路选择 开关通过第二波分多路复用器连接第三波分多路复用器， 所述第三波分多路复 用器分别连接第二个基杆塔监测子系统的第一光路选择开关和第三光路选择 开关。  To achieve this object, a point-type high voltage transmission line fiber inspection network designed by the present invention is characterized in that it comprises a substation control unit, a first wavelength division multiplexer, a second wavelength division multiplexer, a three-wavelength division multiplexer and two base tower monitoring subsystems, wherein the substation control unit includes a communication control module, an optical signal demodulation module, and a fourth wavelength division multiplexer, each of the bases The tower monitoring subsystem includes a first optical path selection switch, a second optical path selection switch, a third optical path selection switch, a photoelectric conversion module, a controller, a first electro-optical conversion module, a second electro-optical conversion module, and a tower state sensor group, wherein An optical path selection switch is connected to the controller through the photoelectric conversion module, and the controller is connected to the second optical path selection switch through the first electro-optical conversion module, and the controller is connected to the third optical path selection switch through the second electro-optical conversion module, and the first optical path selection switch is also directly connected with The second optical path selection switch is connected, and the signal output end of the tower state sensor group is connected to the third optical path selection The communication control module and the optical signal demodulation module are connected to the first wavelength division multiplexer through a fourth wavelength division multiplexer, and the first wavelength division multiplexer is respectively connected to the first base a first optical path selection switch and a third optical path selection switch of the tower monitoring subsystem, wherein the second optical path selection switch and the third optical path selection switch of the first base tower monitoring subsystem are connected by a second wavelength division multiplexer And a third wavelength division multiplexer, wherein the third wavelength division multiplexer is respectively connected to the first optical path selection switch and the third optical path selection switch of the second base tower monitoring subsystem.
所述通信控制模块包括变电站控制器和第三电光转换模块， 所述光信号解 调模块包括宽带光源、 光解调仪和环行器， 其中， 所述变电站控制器通过第三 电光转换模块接入第四波分多路复用器， 宽带光源和光解调仪均通过环行器接 入第四波分多路复用器。  The communication control module includes a substation controller and a third electro-optical conversion module, and the optical signal demodulation module includes a broadband light source, an optical demodulator, and a circulator, wherein the substation controller is accessed through the third electro-optical conversion module The fourth wavelength division multiplexer, the broadband source and the optical demodulator are all connected to the fourth wavelength division multiplexer through the circulator.
所述杆塔状态传感器组包括光纤复合绝缘子机械性能测量传感器、光纤倾 斜角度传感器、 杆塔应变光纤测量传感器、 导线振动光纤测量传感器、 导线光 纤温度测量传感器和电力金具光纤温度测量传感器。  The tower state sensor group includes a fiber composite insulator mechanical property measuring sensor, a fiber tilt angle sensor, a tower strain fiber measuring sensor, a wire vibration fiber measuring sensor, a wire fiber temperature measuring sensor, and a power fitting fiber temperature measuring sensor.
所述第四波分多路复用器通过 OPGW ( Optical Fiber Composite Overhead Ground Wire , 光纤复合架空地线） 光缆连接第一波分多路复用器； 所述第二 波分多路复用器通过 0PGW光缆连接第三波分多路复用器。  The fourth wavelength division multiplexer is connected to the first wavelength division multiplexer through an OPGW (Optical Fiber Composite Overhead Ground Wire) optical cable; the second wavelength division multiplexer The third wavelength division multiplexer is connected through an 0PGW fiber optic cable.
所述光纤复合绝缘子机械性能测量传感器设置在杆塔绝缘子内， 所述光纤 倾斜角度传感器有两个， 一个光纤倾斜角度传感器设置在杆塔塔头， 另一个光 纤倾斜角度传感器设置在杆塔中部。 The optical fiber composite insulator mechanical property measuring sensor is disposed in a pole insulator, the optical fiber There are two tilt angle sensors, one fiber tilt angle sensor is set in the tower tower head, and the other fiber tilt angle sensor is set in the middle of the tower.
本发明的有益效果为：  The beneficial effects of the invention are:
1 ) 本发明中所有的监测设备多为无源， 解决了传统线路监测技术中难以 解决的电源问题； 光纤传感器以光为媒介， 是完全无源的传感方式， 不会受到 电磁环境的影响；光纤本身绝缘，相比传统电传感器不会影响线路的绝缘水平。 因此使用光纤传感器可以大大提高监测系统的稳定性和线路运行的可靠性。  1) All the monitoring devices in the present invention are mostly passive, which solves the power problem that is difficult to solve in the traditional line monitoring technology; the optical fiber sensor is light-mediated, is a completely passive sensing method, and is not affected by the electromagnetic environment. The fiber itself is insulated and does not affect the insulation level of the line compared to conventional electrical sensors. Therefore, the use of fiber optic sensors can greatly improve the stability of the monitoring system and the reliability of the line operation.
2 ) 导线温度、 导线微风振动、 杆塔倾斜角度、 杆塔应力分布、 复合绝缘 子机械性能等高压输电线路的重要性能参数都通过对应的光纤传感器采集， 并 通过本发明的网络实现在线监测， 同时实现了同时对多个基杆塔进行相关运行 参数的检测，相比现有的以一个基杆塔为基础的检测方式，检测效率明显提高。  2) The important performance parameters of high-voltage transmission lines such as wire temperature, wire breeze vibration, tower inclination angle, tower stress distribution, and composite insulator mechanical properties are collected by corresponding fiber optic sensors, and online monitoring is realized by the network of the present invention. At the same time, the detection of relevant operating parameters of a plurality of base towers is carried out, and the detection efficiency is significantly improved compared with the existing detection method based on a base tower.
3 ) 本发明通过 OPGW光缆进行光信号传输， 便于信号的分散采集、 集中 处理， 同时减小施工难度， 提高网络的复用程度。  3) The invention transmits optical signals through the OPGW optical cable, which facilitates distributed acquisition and centralized processing of signals, reduces construction difficulty and improves the degree of network reuse.
4 ) 本发明中光源、 调制解调等硬件设备的复用， 有利于构建分布式的全 光传感输电线路监测网络， 有效降低项目建设成本， 避免重复投资。 附图说明  4) The multiplexing of the light source, the modulation and demodulation and other hardware devices in the invention is beneficial to construct a distributed all-optical sensing transmission line monitoring network, effectively reducing the project construction cost and avoiding repeated investment. DRAWINGS
图 1为本发明的结构框图。  Figure 1 is a block diagram showing the structure of the present invention.
其中， 1一第一波分多路复用器、 2—第二波分多路复用器、 3—通信控制 模块、 4一光信号解调模块、 5—第三波分多路复用器、 6—第一光路选择开关、 7 第二光路选择开关、 8 第三光路选择开关、 9一光电转换模块、 10—控制 器、 11 第一电光转换模块、 12—第四波分多路复用器、 13—变电站控制器、 14一宽带光源、 15—光解调仪、 16—环行器、 17 光纤复合绝缘子机械性能测 量传感器、 18—光纤倾斜角度传感器、 19 杆塔应变光纤测量传感器、 20—导 线振动光纤测量传感器、 21 导线光纤温度测量传感器、 22—电力金具光纤温 度测量传感器、 23 第二电光转换模块、 24 第三电光转换模块。 具体实施方式 以下结合附图和实施例对本发明作进一步的详细说明： Wherein, a first wavelength division multiplexer, a second second wavelength division multiplexer, a 3-communication control module, a 4-optical signal demodulation module, and a fifth-wavelength division multiplexing , 6 - first optical path selection switch, 7 second optical path selection switch, 8 third optical path selection switch, 9 - photoelectric conversion module, 10 - controller, 11 first electro-optical conversion module, 12 - fourth wave division multi-channel Multiplexer, 13-substation controller, 14-broadband light source, 15-photodemodulator, 16-circulator, 17-fiber composite insulator mechanical performance measuring sensor, 18-fiber tilt angle sensor, 19-column strain fiber measuring sensor, 20—Wire vibration fiber measuring sensor, 21 wire optical fiber temperature measuring sensor, 22—electric power fitting fiber temperature measuring sensor, 23 second electro-optical conversion module, 24 third electro-optical conversion module. detailed description The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:
如图 1所示的点式高压输电线路光纤检测网络， 包括变电站控制单元、 第 一波分多路复用器 1、 第二波分多路复用器 2、 第三波分多路复用器 5和两个 基杆塔监测子系统， 其中， 所述变电站控制单元包括通信控制模块 3、 光信号 解调模块 4和第四波分多路复用器 12，所述每个基杆塔监测子系统包括第一光 路选择开关 6、 第二光路选择开关 7、 第三光路选择开关 8、 光电转换模块 9、 控制器 10、第一电光转换模块 11、第二电光转换模块 23和杆塔状态传感器组， 其中， 第一光路选择开关 6通过光电转换模块 9连接控制器 10， 控制器 10通 过第一电光转换模块 11连接第二光路选择开关 7， 控制器 10通过第二电光转 换模块 23连接第三光路选择开关 8，第一光路选择开关 6还直接与第二光路选 择开关 7连接， 杆塔状态传感器组的信号输出端连接第三光路选择开关 8 ; 通 信控制模块 3和光信号解调模块 4通过第四波分多路复用器 12连接第一波分 多路复用器 1， 第一波分多路复用器 1分别连接第一个基杆塔监测子系统的第 一光路选择开关 6和第三光路选择开关 8， 第一个基杆塔监测子系统的第二光 路选择开关 7和第三光路选择开关 8通过第二波分多路复用器 2连接第三波分 多路复用器 5， 第三波分多路复用器 5分别连接第二个基杆塔监测子系统的第 一光路选择开关 6和第三光路选择开关 8。  The point type high voltage transmission line optical fiber detection network shown in FIG. 1 includes a substation control unit, a first wavelength division multiplexer 1, a second wavelength division multiplexer 2, and a third wavelength division multiplexing. And two base tower monitoring subsystems, wherein the substation control unit comprises a communication control module 3, an optical signal demodulation module 4 and a fourth wavelength division multiplexer 12, each of the base tower monitors The system includes a first optical path selection switch 6, a second optical path selection switch 7, a third optical path selection switch 8, a photoelectric conversion module 9, a controller 10, a first electro-optical conversion module 11, a second electro-optical conversion module 23, and a tower state sensor group. The first optical path selection switch 6 is connected to the controller 10 through the photoelectric conversion module 9. The controller 10 is connected to the second optical path selection switch 7 through the first electro-optical conversion module 11, and the controller 10 is connected to the third through the second electro-optical conversion module 23. The optical path selection switch 8, the first optical path selection switch 6 is also directly connected to the second optical path selection switch 7, and the signal output end of the tower state sensor group is connected to the third optical path selection. The switch 8 is connected; the communication control module 3 and the optical signal demodulation module 4 are connected to the first wavelength division multiplexer 1 via the fourth wavelength division multiplexer 12, and the first wavelength division multiplexer 1 is connected to the first a first optical path selection switch 6 and a third optical path selection switch 8 of a base tower monitoring subsystem, the second optical path selection switch 7 and the third optical path selection switch 8 of the first base tower monitoring subsystem pass the second wavelength division The multiplexer 2 is connected to the third wavelength division multiplexer 5, and the third wavelength division multiplexer 5 is connected to the first optical path selection switch 6 and the third optical path selection switch of the second base tower monitoring subsystem, respectively. 8.
上述技术方案中描述的是点式高压输电线路光纤检测网络的一个基础单 元， 具体实施中可以连接多个基杆塔监测子系统， 基杆塔监测子系统的接入个 数根据如下方法确定： 波分多路复用器的插入损耗约 0.5dB， 光路选择开关的 插入损耗约 0.3dB， 考虑来回的光反射， 一个基杆塔系统的光衰减约 1.6dB， 假设两基杆塔间的光纤长度约 500米， 光传输损耗约 0.25dB/km， 考虑来回， 损耗约 0.25dB，这样综合计算，一基杆塔的光损耗约 1.9dB。以 200mW， 24dBm 的光源为例， 光解调仪的分辨功率约为 0.5dBm， 可以进行级联的杆塔数量约 12基。 如果加大变电站主机的光功率， 可以进行更多的杆塔级联。  The above technical solution describes a basic unit of the point type high-voltage transmission line optical fiber detection network. In the specific implementation, multiple base tower monitoring subsystems can be connected, and the number of access points of the base tower monitoring subsystem is determined according to the following method: The insertion loss of the multiplexer is about 0.5dB, and the insertion loss of the optical path selection switch is about 0.3dB. Considering the light reflection back and forth, the light attenuation of a base tower system is about 1.6dB, assuming that the length of the fiber between the two base towers is about 500 meters. The optical transmission loss is about 0.25dB/km. Considering the back and forth, the loss is about 0.25dB. In this way, the optical loss of a base tower is about 1.9dB. Taking a 200mW, 24dBm light source as an example, the resolution power of the optical demodulator is about 0.5dBm, and the number of towers that can be cascaded is about 12 bases. If you increase the optical power of the substation mainframe, you can carry out more tower cascading.
上述技术方案中， 通信控制模块 3包括变电站控制器 13和第三电光转换 模块 24，光信号解调模块 4包括宽带光源 14、光解调仪 15和环行器 16，其中， 变电站控制器 13通过第三电光转换模块 24接入第四波分多路复用器 12，宽带 光源 14和光解调仪 15均通过环行器 16接入第四波分多路复用器 12。 变电站 控制器 13为控制信号收发， 宽带光源 14为光发射器件， 用于发射光波， 波长 为 1550nm， 光解调仪 15为光路解调设备， 用于接收光波长的信息， 并将波长 信息转化为温度或应变的信息。环行器 16为多端口输入输出的非互异性器件， 使得光信号只能沿着规定的端口顺序传输。 In the above technical solution, the communication control module 3 includes a substation controller 13 and a third electro-optical conversion module 24, and the optical signal demodulation module 4 includes a broadband light source 14, an optical demodulator 15 and a circulator 16, wherein the substation controller 13 passes The third electro-optical conversion module 24 is connected to the fourth wavelength division multiplexer 12, and the broadband Both the light source 14 and the optical demodulator 15 are coupled to the fourth wavelength division multiplexer 12 via the circulator 16. The substation controller 13 is a control signal for transmitting and receiving. The broadband light source 14 is a light emitting device for emitting light waves with a wavelength of 1550 nm. The optical demodulator 15 is an optical path demodulating device for receiving information of a wavelength of light and converting the wavelength information. Information for temperature or strain. The circulator 16 is a non-transparent device of multi-port input and output, so that optical signals can only be transmitted sequentially along a prescribed port.
上述技术方案中， 杆塔状态传感器组包括光纤复合绝缘子机械性能测量传 感器 17、 光纤倾斜角度传感器 18、 杆塔应变光纤测量传感器 19、 导线振动光 纤测量传感器 20、 导线光纤温度测量传感器 21和电力金具光纤温度测量传感 器 22。  In the above technical solution, the tower state sensor group includes a fiber composite insulator mechanical property measuring sensor 17, a fiber tilt angle sensor 18, a tower strain fiber measuring sensor 19, a wire vibrating fiber measuring sensor 20, a wire fiber temperature measuring sensor 21, and a power fitting fiber temperature. The sensor 22 is measured.
上述技术方案中， 第四波分多路复用器 12通过 OPGW光缆连接第一波分 多路复用器 1 ;第二波分多路复用器 2通过 OPGW光缆连接第三波分多路复用 器 5。  In the above technical solution, the fourth wavelength division multiplexer 12 is connected to the first wavelength division multiplexer 1 through an OPGW optical cable; the second wavelength division multiplexer 2 is connected to the third wavelength division multiple path through an OPGW optical cable. Multiplexer 5.
上述技术方案中， 光纤复合绝缘子机械性能测量传感器 17设置在杆塔绝 缘子内， 光纤倾斜角度传感器 18有两个， 一个光纤倾斜角度传感器 18设置在 杆塔塔头， 另一个光纤倾斜角度传感器 18设置在杆塔中部。  In the above technical solution, the fiber composite insulator mechanical property measuring sensor 17 is disposed in the tower insulator, and the fiber tilt angle sensor 18 has two, one fiber tilt angle sensor 18 is disposed at the tower tower head, and another fiber tilt angle sensor 18 is disposed at the tower. Central.
上述技术方案中，光纤倾斜角度传感器 18能监测杆塔倾斜，分辨率为 0.05 度， 测量范围为 - 10~ 10度， 适应温度范围为 -20°C ~ 120°C。  In the above technical solution, the fiber tilt angle sensor 18 can monitor the tilt of the tower with a resolution of 0.05 degrees, a measuring range of -10 to 10 degrees, and an adaptation temperature range of -20 ° C to 120 ° C.
导线光纤温度测量传感器 21和电力金具光纤温度测量传感器 22分别用于 测量基杆塔上导线和金具的温度， 上述两个传感器的测温范围为 -20°C ~ 12(TC， 测量精度为 -0.5~0.5 °C。  The wire optical fiber temperature measuring sensor 21 and the electric power fiber optical fiber temperature measuring sensor 22 are respectively used for measuring the temperature of the wire and the metal fitting on the base tower. The temperature range of the above two sensors is -20 ° C ~ 12 (TC, the measuring accuracy is -0.5 ~0.5 °C.
导线振动光纤测量传感器 20安装在输电线路上， 该传感器的测量振幅为 1500 μ ε ， 测量频率小于等于 200ΗΖ。 该传感器用于测量由于微风引起的导线 振动。  The wire vibrating fiber optic measuring sensor 20 is mounted on the transmission line. The measuring amplitude of the sensor is 1500 μ ε and the measuring frequency is 200 小于 or less. This sensor is used to measure the vibration of the wire caused by the breeze.
杆塔应变光纤测量传感器 19在塔身上安装四个， 每个传感器的测量范围 为 - 1500~ 1500 μ ε ， 分辨率为 1 μ ε ， 适应温度范围为 -20°C ~ 120°C， 该传感器 用于监测杆塔的应变。  The tower strain fiber optic measurement sensor 19 is mounted on the tower body. Each sensor has a measurement range of -1500~ 1500 μ ε with a resolution of 1 μ ε and an adaptation temperature range of -20 ° C to 120 ° C. To monitor the strain of the tower.
本发明工作时： 可以在变电站控制单元中采用第四波分多路复用器 12将 1310nm波段的光通信控制信号和 1550nm波段的光传感信号耦合到一芯光纤 中， 通过 OPGW光缆传到第一个基杆塔监测子系统。 第一个基杆塔监测子系 统通过第一波分多路复用器 1将通信控制信号和光传感信号分开， 1310nm波 段的光通信控制信号通过第一光路选择开关 6进入光电转换模块 9， 转换成电 通信控制信号后输入到控制器 10， 控制器 10判断通信控制信号是否测量本基 杆塔， 如果是， 控制器 10输出传感器控制信号并由第二电光转换模块 23转换 成光信号， 再经过第三光路选择开关 8输送到杆塔状态传感器组， 1550nm波 段的光传感信号通过第三光路选择开关 8输送到杆塔状态传感器组， 杆塔状态 传感器组将检测到的信号通过 OPGW光缆原路返回给变电站控制单元。 如果 控制器 10判断通信控制信号不是测量本基杆塔则将电通信控制信号转换成光 信号后经由第二光路选择开关 7输送给后续的基杆塔监测子系统， 同时光传感 信号也经由第三光路选择开关 8输送到后续的基杆塔监测子系统。 当检测第二 个基杆塔监测子系统时以上述同样的方式实现第二个基杆塔参数的检测。 When the present invention is in operation: a fourth wavelength division multiplexer 12 can be used in the substation control unit to couple the optical communication control signal of the 1310 nm band and the optical sensing signal of the 1550 nm band to the one-core optical fiber. In the middle, through the OPGW cable to the first base tower monitoring subsystem. The first base tower monitoring subsystem separates the communication control signal and the optical sensing signal by the first wavelength division multiplexer 1, and the optical communication control signal of the 1310 nm band enters the photoelectric conversion module 9 through the first optical path selection switch 6, and converts The electrical communication control signal is input to the controller 10, and the controller 10 determines whether the communication control signal measures the base tower. If so, the controller 10 outputs the sensor control signal and is converted into an optical signal by the second electro-optical conversion module 23, and then passes through The third optical path selection switch 8 is sent to the tower state sensor group, and the optical sensing signal of the 1550 nm band is sent to the tower state sensor group through the third optical path selection switch 8, and the tower state sensor group returns the detected signal to the original path of the OPGW cable. Substation control unit. If the controller 10 determines that the communication control signal is not the measurement of the base tower, the electrical communication control signal is converted into an optical signal and then transmitted to the subsequent base tower monitoring subsystem via the second optical path selection switch 7, and the optical sensing signal is also passed through the third The optical path selection switch 8 is delivered to a subsequent base tower monitoring subsystem. The second base tower parameter is detected in the same manner as described above when the second base tower monitoring subsystem is detected.
另外， 本发明以一芯光纤作为通信传感通道， 实际是将光纤上的两个基杆塔 监测子系统串联起来， 这造成第一个基杆塔监测子系统发生故障时， 可能后面 正常的基杆塔监测子系统也无法与变电站主机联系， 为了不发生这种状态， 在塔 上设计的光路选择开关采用非稳态光开关， 当第一个基塔上设备发生故障， 系统 瘫痪时， 非稳态光开关切换到缺省状态， 即图 1中第一光路选择开关 6与第二 光路选择开关 7直接相连，使 1310nm波段光信号通过第一光路选择开关 6与第 二光路选择开关 7并由第二波分多路复用器 2和第三波分多路复用器 5进入第 二基杆塔监测子系统； 第三光路选择开关 8与连接第二波分多路复用器 2的光 纤直通， 使 1550nm波段的光信号通过并进入第二基杆塔监测子系统。 这样出现 故障的基杆塔监测子系统不影响后续塔上系统的通信以及传感信号的通过。  In addition, the present invention uses a core fiber as the communication sensing channel, and actually connects the two base tower monitoring subsystems on the fiber in series, which causes the first base tower monitoring subsystem to fail, and may be followed by a normal base tower. The monitoring subsystem is also unable to communicate with the substation mainframe. In order not to occur, the optical path selection switch designed on the tower uses an unsteady optical switch. When the equipment on the first base tower fails, the system is not stable. The optical switch is switched to the default state, that is, the first optical path selection switch 6 and the second optical path selection switch 7 are directly connected in FIG. 1, so that the 1310 nm band optical signal passes through the first optical path selection switch 6 and the second optical path selection switch 7 and is The two-wavelength division multiplexer 2 and the third wavelength division multiplexer 5 enter the second base tower monitoring subsystem; the third optical path selection switch 8 and the optical fiber straight-through connected to the second wavelength division multiplexer 2 , passing the optical signal in the 1550 nm band and entering the second base tower monitoring subsystem. Such a faulty base tower monitoring subsystem does not affect the communication of the system on the subsequent tower and the passage of the sensing signals.
本说明书未作详细描述的内容属于本领域专业技术人员公知的现有技术。  The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

Claims

权 利 要 求 书 Claim
1. 一种点式高压输电线路光纤检测网络， 其特征在于： 它包括变电站控 制单元、 第一波分多路复用器 （1)、 第二波分多路复用器 （2)、 第三波分多路 复用器 （5) 和两个基杆塔监测子系统， 其中， 所述变电站控制单元包括通信 控制模块 （3)、 光信号解调模块 （4) 和第四波分多路复用器 （12)， 所述每个 基杆塔监测子系统包括第一光路选择开关 （6)、 第二光路选择开关 （7)、 第三 光路选择开关（8)、光电转换模块（9)、控制器（10)、第一电光转换模块（11)、 第二电光转换模块 （23) 和杆塔状态传感器组， 其中， 第一光路选择开关 （6) 通过光电转换模块 （9) 连接控制器 （10)， 控制器 （10) 通过第一电光转换模 块（11)连接第二光路选择开关（7)， 控制器（10)通过第二电光转换模块（23) 连接第三光路选择开关 （8)， 第一光路选择开关 （6) 还直接与第二光路选择 开关 （7) 连接， 杆塔状态传感器组的信号输出端连接第三光路选择开关 （8); 所述通信控制模块 （3)和光信号解调模块 （4)通过第四波分多路复用器 （12) 连接第一波分多路复用器 （1)， 所述第一波分多路复用器 （1) 分别连接第一 个基杆塔监测子系统的第一光路选择开关 （6) 和第三光路选择开关 （8)， 所 述第一个基杆塔监测子系统的第二光路选择开关（7)和第三光路选择开关（8) 通过第二波分多路复用器 （2) 连接第三波分多路复用器 （5)， 所述第三波分 多路复用器 （5) 分别连接第二个基杆塔监测子系统的第一光路选择开关 （6) 和第三光路选择开关 （8)。 A point-type high-voltage transmission line optical fiber detection network, characterized in that it comprises a substation control unit, a first wavelength division multiplexer (1), a second wavelength division multiplexer (2), a three-wavelength division multiplexer (5) and two base tower monitoring subsystems, wherein the substation control unit includes a communication control module (3), an optical signal demodulation module (4), and a fourth wavelength division multiplexing a multiplexer (12), each of the base tower monitoring subsystems includes a first optical path selection switch (6), a second optical path selection switch (7), a third optical path selection switch (8), and a photoelectric conversion module (9) a controller (10), a first electro-optical conversion module (11), a second electro-optical conversion module (23), and a tower state sensor group, wherein the first optical path selection switch (6) is connected to the controller through the photoelectric conversion module (9) (10), the controller (10) is connected to the second optical path selection switch (7) through the first electro-optical conversion module (11), and the controller (10) is connected to the third optical path selection switch (8) through the second electro-optical conversion module (23) ), the first optical path selection switch (6) also Connected to the second optical path selection switch (7), the signal output end of the tower state sensor group is connected to the third optical path selection switch (8); the communication control module (3) and the optical signal demodulation module (4) pass the fourth wave The sub-multiplexer (12) is connected to the first wavelength division multiplexer (1), and the first wavelength division multiplexer (1) is respectively connected to the first of the first base tower monitoring subsystem An optical path selection switch (6) and a third optical path selection switch (8), wherein the second optical path selection switch (7) and the third optical path selection switch (8) of the first base tower monitoring subsystem pass the second wavelength division The multiplexer (2) is connected to the third wavelength division multiplexer (5), and the third wavelength division multiplexer (5) is respectively connected to the first optical path selection of the second base tower monitoring subsystem Switch (6) and third optical path selection switch (8).
2. 根据权利要求 1所述的点式高压输电线路光纤检测网络， 其特征在于： 所述通信控制模块 （3) 包括变电站控制器 （13) 和第三电光转换模块 （24)， 所述光信号解调模块（4)包括宽带光源（14)、 光解调仪（15)和环行器（16)， 其中， 所述变电站控制器 （13) 通过第三电光转换模块 （24) 接入第四波分多 路复用器 （12)， 宽带光源 （14) 和光解调仪 （15) 均通过环行器 （16) 接入 第四波分多路复用器 （12)。 2. The point type high voltage transmission line optical fiber detection network according to claim 1, wherein: said communication control module (3) comprises a substation controller (13) and a third electro-optical conversion module (24), said light The signal demodulation module (4) comprises a broadband light source (14), an optical demodulator (15) and a circulator (16), wherein the substation controller (13) is connected to the third electro-optical conversion module (24) The four-wavelength division multiplexer (12), the broadband source (14) and the optical demodulator (15) are both connected to the fourth wavelength division multiplexer (12) via the circulator (16).
3. 根据权利要求 1所述的点式高压输电线路光纤检测网络， 其特征在于： 所述杆塔状态传感器组包括光纤复合绝缘子机械性能测量传感器 （17)、 光纤 倾斜角度传感器 （18)、 杆塔应变光纤测量传感器 （19)、 导线振动光纤测量传 感器 （20)、 导线光纤温度测量传感器 （21) 和电力金具光纤温度测量传感器3. The point type high voltage transmission line optical fiber detection network according to claim 1, wherein: the tower state sensor group comprises a fiber composite insulator mechanical property measuring sensor (17), a fiber tilt angle sensor (18), and a tower strain. Fiber optic measurement sensor (19), wire vibration fiber optic measurement sensor (20), wire optic temperature measurement sensor (21) and power fitting fiber optic temperature measurement sensor
(22)。 (twenty two).
4. 根据权利要求 1所述的点式高压输电线路光纤检测网络， 其特征在于： 所述第四波分多路复用器（12)通过 OPGW光缆连接第一波分多路复用器（1); 所述第二波分多路复用器（2)通过 OPGW光缆连接第三波分多路复用器（5)。 4. The point type high voltage transmission line optical fiber detection network according to claim 1, wherein: said fourth wavelength division multiplexer (12) is connected to the first wavelength division multiplexer through an OPGW optical cable ( 1); The second wavelength division multiplexer (2) is connected to the third wavelength division multiplexer (5) through an OPGW cable.
5. 根据权利要求 3所述的点式高压输电线路光纤检测网络， 其特征在于： 所述光纤复合绝缘子机械性能测量传感器 （17) 设置在杆塔绝缘子内， 所述光 纤倾斜角度传感器 （18) 有两个， 一个光纤倾斜角度传感器 （18) 设置在杆塔 塔头， 另一个光纤倾斜角度传感器 （18) 设置在杆塔中部。 5. The point type high voltage transmission line fiber inspection network according to claim 3, wherein: the fiber composite insulator mechanical property measuring sensor (17) is disposed in the tower insulator, and the fiber tilt angle sensor (18) has Two, one fiber tilt angle sensor (18) is placed at the tower tower head, and another fiber tilt angle sensor (18) is placed in the middle of the tower.
PCT/CN2014/075501 2013-04-18 2014-04-16 Point-type high-voltage power transmission line optical fiber detection network WO2014169820A1 (en)

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CN201310135361.2A CN103259609B (en) 2013-04-18 2013-04-18 Point type high-voltage transmission line optical fiber detection network
CN2013201979161U CN203203611U (en) 2013-04-18 2013-04-18 Quasi-distributed high voltage transmission line optical fiber monitoring network
CN201310135361.2 2013-04-18

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CN103259609A (en) * 2013-04-18 2013-08-21 国家电网公司 Point type high-voltage transmission line optical fiber detection network
CN103270394A (en) * 2010-05-11 2013-08-28 希尔莱特有限责任公司 Optical power transmission system and method having multiple optical power forms
CN203203611U (en) * 2013-04-18 2013-09-18 国家电网公司 Quasi-distributed high voltage transmission line optical fiber monitoring network

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101483567A (en) * 2008-12-19 2009-07-15 西北电网有限公司 High voltage electricity transmission line monitoring method based on wireless communication and optical communication
CN103270394A (en) * 2010-05-11 2013-08-28 希尔莱特有限责任公司 Optical power transmission system and method having multiple optical power forms
CN202855001U (en) * 2012-10-10 2013-04-03 中科华核电技术研究院有限公司 Nuclear power plant sensing fiber detection system capable of realizing multi-channel signal transmission
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