A monitoring system for galloping and swaying of overhead transmission lines based on FTU

Abstract

This invention provides an overhead power transmission line galloping and swaying monitoring system based on an FTU (Field Transmission Unit), comprising: a galloping monitoring node and a monitoring FTU, wherein the galloping monitoring node and the monitoring FTU are wirelessly connected; the monitoring FTU includes a control module and a first power supply module, a first wireless transceiver module, a remote control module, a tilt sensor, a wind speed and direction sensor, a telemetry module, a remote signaling module, and an image sensor electrically connected to the control module; the remote signaling module is wirelessly connected to a router, and the router is communicatively connected to a server and a workstation; the galloping monitoring node includes a microprocessor and a second power supply module, an accelerometer, a second wireless transceiver module, and an icing sensor electrically connected to the microprocessor; the first wireless transceiver module and the second wireless transceiver module are wirelessly connected. This invention enables proactive monitoring of various factors causing galloping, facilitating timely identification and elimination of potential hazards, and its monitoring indicators are comprehensive and highly reliable.

Description

Technical Field

[0001] This utility model relates to the field of power transmission line monitoring technology, specifically to an overhead power transmission line galloping and swaying monitoring system based on FTU. Background Technology

[0002] Galloping of overhead transmission lines is a self-excited vibration of conductors at low frequencies (0.1-3Hz) and large amplitudes (up to 10m or more). Its formation mainly depends on three factors: icing, wind excitation, and the line's structure and parameters. The hazards of galloping are multifaceted, ranging from minor issues like flashover and tripping to severe damage to hardware and insulators, conductor strand breakage, loose tower bolts, and even tower collapse, leading to major power grid accidents. For example, when ice accumulation on conductors is uneven, the asymmetrical cross-section causes aerodynamic instability when wind blows, resulting in low-frequency (0.1-3Hz) and large-amplitude (>10m) galloping under the corresponding wind force. This galloping causes violent swaying of adjacent suspension strings and significant changes in conductor tension at both ends, inducing differential frequency loads and leading to serious accidents such as hardware damage, conductor strand breakage, phase-to-phase short circuits, and tower tilting or collapse. The conductor galloping that occurred during this ice storm was caused by uneven icing. In addition, the conductor galloping also caused damage to some tower components and tower collapse.

[0003] Current technologies for monitoring transmission line galloping primarily focus on the line itself, issuing warnings only after galloping signals are detected. By this time, maintenance is often too late, failing to proactively monitor the various factors causing galloping and eliminate potential problems early. Therefore, there is an urgent need to design a monitoring device that can comprehensively monitor the factors contributing to transmission line galloping. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an overhead transmission line galloping and swaying monitoring system based on FTU, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the embodiments of this utility model provide the following technical solutions:

[0006] A galloping and swaying monitoring system for overhead transmission lines based on an FTU includes: a galloping monitoring node installed on the transmission line and a monitoring FTU installed on the tower, wherein the galloping monitoring node is wirelessly connected to the monitoring FTU;

[0007] The monitoring FTU includes a control module and a first power module, a first wireless transceiver module, a remote control module, a tilt sensor, a wind speed and direction sensor, a telemetry module, a remote signaling module, and an image sensor, all electrically connected to the control module. The remote signaling module is wirelessly connected to a router, and the router is communicatively connected to a server and a workstation.

[0008] The dancing monitoring node includes a microprocessor and a second power module electrically connected to the microprocessor, an acceleration sensor, a second wireless transceiver module, and an icing sensor;

[0009] The first wireless transceiver module and the second wireless transceiver module are wirelessly connected.

[0010] Preferably, the control module is an MSP430 series microcontroller, and the microprocessor it belongs to is a C8051F microcontroller.

[0011] Preferably, the first power module and the second power module are solar-powered batteries.

[0012] Preferably, the first wireless transceiver module and the second wireless transceiver module are ZigBee modules.

[0013] Preferably, the router is a 4G / 5G industrial wireless router.

[0014] Preferably, the accelerometer is an MMA7260Q accelerometer.

[0015] Preferably, the icing sensor is a TJL-12J power icing detection sensor.

[0016] Preferably, the workstation is an industrial computer.

[0017] Preferably, the remote signaling module is a 4G / 5G module.

[0018] Preferably, the wind speed and direction sensor is an integrated wind speed and direction sensor of model DF-YFS, which is installed outside the monitoring FTU housing and electrically connected to the control module; the tilt sensor is model 3DM-CV5-AR, which is integrated on the circuit board inside the monitoring FTU housing.

[0019] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0020] This invention includes a galloping monitoring node installed on the transmission line and a monitoring FTU installed on the tower. The galloping monitoring node transmits the sensor information on line sway and icing to the FTU via a wireless transceiver module. This information, along with tower tilt angle, wind speed and direction, and line image information monitored by the FTU, is wirelessly transmitted to a remote workstation via a remote signaling module, enabling wireless remote monitoring. When any indicator exceeds a limit, an alarm is triggered, allowing for timely investigation and elimination of potential hazards. This invention achieves proactive monitoring of various factors causing galloping, facilitating timely hazard identification and elimination. Its monitoring indicators are comprehensive and highly reliable. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the overall installation structure of the FTU-based overhead transmission line galloping and swaying monitoring system of this utility model;

[0022] Figure 2 This is a block diagram illustrating the monitoring FTU principle of the overhead transmission line galloping and swaying monitoring system based on FTU of this utility model;

[0023] Figure 3 This is a block diagram illustrating the monitoring node principle of the FTU-based overhead transmission line galloping and swaying monitoring system of this utility model.

[0024] Figure 4 This is a schematic diagram of the acceleration sensor circuit of the FTU-based overhead power line galloping and swaying monitoring system of this utility model.

[0025] Figure 5 This is a schematic diagram of the installation structure of the wind speed and direction sensor in the FTU-based overhead power line galloping and swaying monitoring system of this utility model. Detailed Implementation

[0026] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0027] like Figure 1 , 2 As shown in Figure 3, an overhead transmission line galloping and swaying monitoring system based on FTU includes: a galloping monitoring node 101 installed on the transmission line and a monitoring FTU 102 installed on the tower, wherein the galloping monitoring node 101 and the monitoring FTU 102 are wirelessly connected.

[0028] The monitoring FTU102 includes a control module 1 and a first power module 2, a first wireless transceiver module 3, a remote control module 4, a tilt sensor 5, a wind speed and direction sensor 6, a telemetry module 7, a remote signaling module 8, and an image sensor 9, all electrically connected to the control module 1. The remote signaling module 8 is wirelessly connected to a router 11, and the router 11 is communicatively connected to a server 10 and a workstation 12. The control module 1, the first power module 2, the first wireless transceiver module 3, the remote control module 4, the tilt sensor 5, the telemetry module 7, and the remote signaling module 8 are integrated on a circuit board inside the monitoring FTU housing. The wind speed and direction sensor 6 and the image sensor 9 are mounted outside the monitoring FTU housing and connected to the circuit board via signal lines.

[0029] The dancing monitoring node 101 includes a microprocessor 13 and a second power module 14, an accelerometer 15, a second wireless transceiver module 16, and an icing sensor 17, all electrically connected to the microprocessor 13. The microprocessor 13, the second power module 14, the accelerometer 15, and the second wireless transceiver module 16 are integrated on a circuit board inside the dancing monitoring node housing, while the icing sensor 17 is mounted on a line outside the dancing monitoring node housing and connected to the circuit board via a signal line.

[0030] The first wireless transceiver module 3 and the second wireless transceiver module 16 are connected for wireless communication.

[0031] Among them, control module 1 is an MSP430 series microcontroller. The main features of the MSP430 microcontroller include: Ultra-low power consumption: The MSP430 microcontroller has excellent low-power performance, suitable for battery-powered devices that operate for extended periods. Ease of operation: The MSP430 microcontroller provides rich peripheral interfaces and debugging functions, facilitating user development and testing. Powerful computing capabilities: The MSP430 microcontroller uses a 16-bit central processing unit, enabling high-efficiency data processing. Wide operating voltage range: The MSP430 microcontroller can operate within a range of 1.8V to 3.6V, meeting the needs of various application scenarios. Microprocessor 13 is a C8051F microcontroller. The C805IF020 is a mixed-signal SOC type 8-bit microcontroller from Cygnal. It is a fully integrated mixed-signal system-on-a-chip (SoC) device with 64 digital I / O pins. This microcontroller uses a high-speed 805I microcontroller core, achieving speeds up to 25MI / s. It features eight / 0 ports, five general-purpose timers, five capture / compare modules, and a dedicated watchdog timer. It can simultaneously utilize SM-Bus, SPI, and two UART serial ports, and has 64kB of built-in high-speed memory. For analog peripherals, the device includes one 12-bit A / D converter, one 8-bit A / D converter, two 12-bit D / A converters, and two analog comparators. These internal digital and analog peripherals simplify system design and increase integration.

[0032] The first power module 2 and the second power module 14 are solar-powered batteries. Solar panels can be installed on the transmission lines. The electrical energy converted and output by the solar panels is transmitted to the first power module 2 and the second power module 14 through the lines to power the dancing monitoring node 101 and the monitoring FTU 102.

[0033] The first wireless transceiver module 3 and the second wireless transceiver module 16 are ZigBee modules. ZigBee technology is a new technology that mainly relies on wireless networks for transmission. It enables short-range wireless connections, with a communication distance of 30-70 meters. It belongs to wireless network communication technology and meets the communication distance requirements of the transmission line monitoring point and FTU of this utility model. In data transmission, ZigBee technology is a key technical indicator; it is relatively safe to use and has strong capacity.

[0034] Router 11 is a 4G / 5G industrial wireless router used to receive monitoring signals sent by the remote signaling module 8 (4G / 5G module) of the FTU.

[0035] like Figure 4 As shown, accelerometer 15 is the MMA7260Q accelerometer. The MMA7260Q is a low-cost, single-chip, triaxial, high-sensitivity accelerometer based on a surface micromechanical structure. It integrates signal conditioning circuitry, a single-pole low-pass filter, and temperature compensation, and features four different sensitivity selection modes. It also includes a sleep mode, making it ideal for small, battery-powered portable devices. The MMA7260Q can read low-gravity levels of drop, tilt, movement, placement, vibration, and sway with extremely high sensitivity along the X, Y, and Z axes. It is the first single-chip triaxial accelerometer of its kind.

[0036] The icing sensor 17 is a TJL-12J power icing detection sensor, used to monitor whether there is icing on the line.

[0037] Workstation 12 is an industrial computer used to remotely monitor various relevant factors and indicators of power transmission line galloping and to issue early warnings.

[0038] The wind speed and direction sensor is an integrated DF-YFS model, which is mounted on the outside of the monitoring FTU housing. Figure 5 As shown; the tilt sensor model is 3DM-CV5-AR.

[0039] The working principle of this utility model is as follows:

[0040] The galloping monitoring node 101 installed on the transmission line includes a microprocessor 13 and a second power module 14 electrically connected to the microprocessor 13, an accelerometer 15, a second wireless transceiver module 16, and an icing sensor 17. The accelerometer 15 monitors the galloping signal of the transmission line, and the icing sensor 17 monitors whether there is icing on the line. The monitored signal is wirelessly transmitted to the monitoring FTU 102 on its corresponding tower through the second wireless transceiver module 16 (ZigBee module).

[0041] The monitoring FTU102 includes a control module 1 and, electrically connected to the control module 1, a first power supply module 2, a first wireless transceiver module 3, a remote control module 4, a tilt sensor 5, a wind speed and direction sensor 6, a telemetry module 7, a remote signaling module 8, and an image sensor 9. The tilt sensor 5 collects the tilt angle information of the tower, the wind speed and direction sensor 6 collects wind direction and speed, and the image sensor 9 collects image information of the transmission line. This sensor information, along with the presence of icing on the monitored transmission line, are relevant factors affecting transmission line galloping. The galloping monitoring node 101 transmits the monitored line sway and icing sensor information to the FTU via the wireless transceiver module. This information, along with the tilt angle, wind speed and direction, and image information, is wirelessly transmitted to a remote workstation via the remote signaling module 8 (4G / 5G module) for wireless remote monitoring. When any indicator exceeds a limit, an alarm is triggered, allowing for timely investigation of potential hazards. Additionally, the remote control module and telemetry module perform their respective monitoring functions, and their data is also wirelessly transmitted to the remote workstation via the remote signaling module 8 (4G / 5G module) for wireless remote monitoring.

[0042] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An FTU based overhead transmission line galloping monitoring system characterized by, include: Galloping monitoring nodes are installed on the transmission line and monitoring FTUs are installed on the towers, wherein the galloping monitoring nodes and monitoring FTUs are wirelessly connected; The monitoring FTU includes a control module and a first power module, a first wireless transceiver module, a remote control module, a tilt sensor, a wind speed and direction sensor, a telemetry module, a remote signaling module, and an image sensor, all electrically connected to the control module. The remote signaling module is wirelessly connected to a router, and the router is communicatively connected to a server and a workstation. The dancing monitoring node includes a microprocessor and a second power module electrically connected to the microprocessor, an acceleration sensor, a second wireless transceiver module, and an icing sensor; The first wireless transceiver module and the second wireless transceiver module are wirelessly connected.

2. The FTU based overhead transmission line galloping monitoring system as claimed in claim 1, wherein, The control module is an MSP430 series microcontroller, and the microprocessor it belongs to is a C8051F microcontroller.

3. The FTU based overhead transmission line galloping monitoring system as claimed in claim 1, wherein, The first power module and the second power module are solar-powered batteries.

4. The FTU based overhead transmission line galloping monitoring system as claimed in claim 1, wherein, The first and second wireless transceiver modules are ZigBee modules.

5. The FTU based overhead transmission line galloping monitoring system as claimed in claim 1 wherein, The router is a 4G / 5G industrial wireless router.

6. The FTU based overhead transmission line galloping monitoring system as claimed in claim 1, wherein, The accelerometer is an MMA7260Q accelerometer.

7. The FTU based overhead transmission line galloping monitoring system as claimed in claim 1, wherein, The icing sensor is a TJL-12J power icing detection sensor.

8. The FTU based overhead power line galloping monitoring system as claimed in claim 1, wherein, The workstation is an industrial computer.

9. The FTU based overhead transmission line galloping monitoring system as claimed in claim 1, wherein, The remote signaling module is a 4G / 5G module.

10. The FTU based overhead power transmission line galloping monitoring system as claimed in claim 1, wherein, The wind speed and direction sensor is an integrated wind speed and direction sensor of model DF-YFS, which is installed outside the monitoring FTU housing and electrically connected to the control module; the tilt sensor is model 3DM-CV5-AR, which is integrated on the circuit board inside the monitoring FTU housing.

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