Intelligent monitoring and early warning device for wind deflection galloping of overhead transmission line

Abstract

The invention discloses an intelligent monitoring and early warning device for windage yaw galloping of an overhead transmission line, and relates to a monitoring and early warning device for windage yaw galloping of a transmission line. The problems that an existing power transmission line galloping monitoring system is complex, and an adopted sensor structure is poor in safety are solved. The device comprises a power transmission line monitoring sensing mechanism, a communication module, a data processing storage module, a warning module, a global navigation satellite system base station and a power supply module. The power transmission line can be monitored in real time, potential safety hazards of the line can be found in time, and the safety of the power supply line is improved. The power transmission line monitoring sensing mechanism is composed of the outer layer sensing assembly, the middle layer sensing assembly and the inner layer sensing assembly, the outer layer sensing assembly, the middle layer sensing assembly and the inner layer sensing assembly are used for sensing and measuring information of the same position, a layer protection mechanism is provided, and the monitoring efficiency and accuracy and the safety of the sensor are improved.

Description

Technical Field

[0001] The invention relates to a wind-induced swing monitoring and early warning device for a power transmission line. Background Art

[0002] With the impact of rising global temperatures and environmental degradation, the number of extreme weather events has gradually increased in recent years, resulting in frequent galloping disasters of high-voltage overhead transmission lines. Transmission line galloping is generally caused by the coupling of ice cover and wind excitation, forming a low-frequency and high-amplitude self-excited oscillation phenomenon; this phenomenon can cause circuit accidents such as broken strands, phase-to-phase flashover, and damaged insulators in a large range of circuits, causing serious safety accidents and economic losses to the national power system. Therefore, the monitoring and prevention of transmission line galloping has become one of the research hotspots in the power industry.

[0003] The transmission line dancing monitoring system uses equipment to obtain relevant parameters of the transmission line movement to calculate the dancing characteristic parameters, mainly including the dancing amplitude and the dancing frequency. Various monitoring technical means have been proposed in this field, including video tracking technology, computer three-dimensional simulation technology, and online sensor measurement technology; at present, the research results of the dancing monitoring system based on accelerometers are quite fruitful. The accelerometer moves with the transmission line and the dancing characteristic parameters are calculated. Therefore, in recent years, the dancing monitoring system designed based on inertial sensors has developed rapidly. The gyroscope in the inertial sensor can solve the problem of transmission line torsion. The literature records the use of nine-axis inertial sensors for dancing monitoring, which overcomes the problem of accelerometers being disturbed by torsion and realizes the attitude curve restoration algorithm that restores the transmission line motion trajectory in real time. However, the above-mentioned transmission line dancing monitoring systems all have high costs, and there is little research on the safety and accuracy of the sensor structure, which cannot be applied on a large scale. Summary of the invention

[0004] In order to solve the problems that the existing power transmission line sway monitoring system is relatively complex and the sensor structure used is relatively safe, the present invention proposes an intelligent monitoring and early warning device for wind deflection sway of overhead power transmission lines.

[0005] The invention discloses an intelligent monitoring and early warning device for wind-induced vibration of overhead power transmission lines, comprising: a power transmission line monitoring sensor mechanism 1, a communication module 2, a data processing and storage module 3, a warning module 4, a global navigation satellite system reference station 5, and a power supply module 6;

[0006] A transmission line monitoring sensor mechanism 1 is installed on an overhead all-dielectric self-supporting transmission line and is used to collect and monitor the dancing position data of the all-dielectric self-supporting transmission line; the transmission line monitoring sensor mechanism 1 comprises: a deformation sensor based on Beidou signals and a multi-antenna global navigation satellite system receiver; the deformation sensor based on Beidou signals is composed of a deformation sensor and a controller; the deformation sensor is arranged on the transmission line; the deformation sensor is composed of an outer layer strain gauge (9), a middle layer strain gauge (10), an inner layer strain gauge (13), an outer layer connecting ceramic (7), a middle layer connecting ceramic (11), an inner layer connecting ceramic (14), an outer layer insulating ceramic (8), a middle layer insulating ceramic (12) and an inner layer insulating ceramic (15); the outer layer connecting ceramic (7), the outer layer insulating ceramic (8) and the outer layer strain gauge (9) constitute an outer layer sensing component, the two ends of the outer layer strain gauge (9) are respectively fixedly connected to the outer layer connecting ceramic (7), and the lower surface of the end of the outer layer connecting ceramic (7) is divided into The outer layer insulating ceramic (8) is fixedly connected to the inner layer of the middle layer of the strain gauge (10), the middle layer connecting ceramic (11) and the middle layer insulating ceramic (12) constitute a middle layer sensing component; the two ends of the middle layer strain gauge (10) are fixedly connected to the middle layer connecting ceramic (11), and the lower surface of the end of the middle layer connecting ceramic (11) is fixedly connected to the middle layer insulating ceramic (12); the inner layer strain gauge (13), the inner layer connecting ceramic (14) and the inner layer insulating ceramic (15) constitute an inner layer sensing component; the inner layer strain gauge (1 3) are respectively fixedly connected to inner layer connection ceramics (14) at both ends, and inner layer insulation ceramics (15) are respectively fixedly connected to the lower surface of the end of the inner layer connection ceramics (14); the inner layer insulation ceramics (15) in the inner layer sensing assembly are fixedly connected to the power transmission line, and the inner layer sensing assembly is arranged in the middle layer sensing assembly; the middle layer insulation ceramics (12) in the middle layer sensing assembly are fixedly connected to the power transmission line, and the middle layer sensing assembly is arranged in the outer layer sensing assembly; the outer layer insulation ceramics (8) in the outer layer sensing assembly are fixedly connected to the power transmission line;

[0007] The data processing and storage module 3 receives the data collected by the transmission line monitoring sensor mechanism 1 through the communication module 2, processes, calculates and stores the data;

[0008] The global navigation satellite system reference station 5 provides reference observations for the data processing and storage module 3 to solve;

[0009] The warning module 4 receives the calculation results of the data processing and storage module 3 through the communication module 2, and issues an alarm or early warning notification according to the settlement results;

[0010] The power supply module 6 supplies power to the data processing and storage module 3 and the global navigation satellite system reference station 5 .

[0011] The device of the present invention can realize real-time monitoring of the power transmission line. Once abnormal dancing is found, it can be sensed in time through the warning module 4, which is convenient for timely discovery of line safety hazards and improves the safety of the power supply line. The power transmission line monitoring sensor mechanism 1 is composed of an outer layer sensor component, a middle layer sensor component and an inner layer sensor component, and the outer layer sensor component, the middle layer sensor component and the inner layer sensor component are for sensing and measuring the same position information, and have a layer protection mechanism, which improves the efficiency and accuracy of monitoring and the safety of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the intelligent monitoring and early warning device for wind-induced vibration of overhead power transmission lines of the present invention;

[0013] Figure 2 Schematic diagram of the structure of the deformation sensor of the present invention. DETAILED DESCRIPTION

[0014] The technical solution of the present invention is not limited to the specific implementation modes listed below, but also includes any reasonable combination of the specific implementation modes.

[0015] Specific implementation method 1: The intelligent monitoring and early warning device for wind-induced vibration of overhead power transmission lines in this implementation method comprises: a transmission line monitoring sensor mechanism 1, a communication module 2, a data processing and storage module 3, a warning module 4, a global navigation satellite system base station 5, and a power supply module 6;

[0016] A transmission line monitoring sensor mechanism 1 is installed on an overhead all-dielectric self-supporting transmission line and is used to collect and monitor the dancing position data of the all-dielectric self-supporting transmission line; the transmission line monitoring sensor mechanism 1 comprises: a deformation sensor based on Beidou signals and a multi-antenna global navigation satellite system receiver; the deformation sensor based on Beidou signals is composed of a deformation sensor and a controller; the deformation sensor is arranged on the transmission line; the deformation sensor is composed of an outer layer strain gauge (9), a middle layer strain gauge (10), an inner layer strain gauge (13), an outer layer connecting ceramic (7), a middle layer connecting ceramic (11), an inner layer connecting ceramic (14), an outer layer insulating ceramic (8), a middle layer insulating ceramic (12) and an inner layer insulating ceramic (15); the outer layer connecting ceramic (7), the outer layer insulating ceramic (8) and the outer layer strain gauge (9) constitute an outer layer sensing component, the two ends of the outer layer strain gauge (9) are respectively fixedly connected to the outer layer connecting ceramic (7), and the lower surface of the end of the outer layer connecting ceramic (7) is divided into The outer layer insulating ceramic (8) is fixedly connected to the inner layer of the middle layer of the strain gauge (10), the middle layer connecting ceramic (11) and the middle layer insulating ceramic (12) constitute a middle layer sensing component; the two ends of the middle layer strain gauge (10) are fixedly connected to the middle layer connecting ceramic (11), and the lower surface of the end of the middle layer connecting ceramic (11) is fixedly connected to the middle layer insulating ceramic (12); the inner layer strain gauge (13), the inner layer connecting ceramic (14) and the inner layer insulating ceramic (15) constitute an inner layer sensing component; the inner layer strain gauge (1 3) are respectively fixedly connected to inner layer connection ceramics (14) at both ends, and inner layer insulation ceramics (15) are respectively fixedly connected to the lower surface of the end of the inner layer connection ceramics (14); the inner layer insulation ceramics (15) in the inner layer sensing assembly are fixedly connected to the power transmission line, and the inner layer sensing assembly is arranged in the middle layer sensing assembly; the middle layer insulation ceramics (12) in the middle layer sensing assembly are fixedly connected to the power transmission line, and the middle layer sensing assembly is arranged in the outer layer sensing assembly; the outer layer insulation ceramics (8) in the outer layer sensing assembly are fixedly connected to the power transmission line;

[0017] The data processing and storage module 3 receives the data collected by the transmission line monitoring sensor mechanism 1 through the communication module 2, processes, calculates and stores the data;

[0018] The global navigation satellite system reference station 5 provides reference observations for the data processing and storage module 3 to solve;

[0019] The warning module 4 receives the calculation results of the data processing and storage module 3 through the communication module 2, and issues an alarm or early warning notification according to the settlement results;

[0020] The power supply module 6 supplies power to the data processing and storage module 3 and the global navigation satellite system reference station 5 .

[0021] The device of this embodiment can realize real-time monitoring of the power transmission line. Once abnormal dancing is found, it can be sensed in time through the warning module 4, which is convenient for timely discovery of line safety hazards and improves the safety of the power supply line. The power transmission line monitoring sensor mechanism 1 is composed of an outer layer sensor component, a middle layer sensor component and an inner layer sensor component, and the outer layer sensor component, the middle layer sensor component and the inner layer sensor component are for sensing and measuring the same position information, and have a layer protection mechanism, which improves the monitoring efficiency, accuracy and safety of the sensor.

[0022] Specific implementation method 2: This implementation method is different from the specific implementation method 1 in that: the deformation sensor based on Beidou signal is powered by in-situ inductive power supply.

[0023] Specific implementation method three: This implementation method is different from specific implementation methods one or two in that: the deformation sensor based on Beidou signals collects structural deformation data of the transmission line.

[0024] Specific implementation method 4: This implementation method is different from any one of specific implementation methods 1 to 3 in that: the multi-antenna global navigation satellite system receiver is installed and arranged on one side of the tower to collect and monitor the structural deformation data of the transmission line.

[0025] Specific implementation method five: This implementation method is different from any one of specific implementation methods one to four in that: the power transmission line monitoring sensor mechanism 1 is an inductive power supply.

[0026] Specific implementation example 6: This implementation example is different from any one of specific implementation examples 1 to 5 in that: the multi-antenna global navigation satellite system receiver and the deformation sensor based on Beidou signals are connected via a radio frequency cable.

[0027] Specific implementation method seven: This implementation method is different from any one of specific implementation methods one to six in that: the deformation sensor based on Beidou signals is fixed on the transmission line and connected to the radio frequency cable between the multi-antenna global navigation satellite system receivers.

[0028] Specific implementation eight: This implementation differs from any one of specific implementations one to seven in that: the global navigation satellite system reference station 5 is a Beidou RTK reference station, which is erected in a ground cage combined with a pole.

[0029] Specific implementation method 9: This implementation method is different from any one of specific implementation methods 1 to 8 in that: the power supply module 6 is a photovoltaic power generation module or a storage battery.

[0030] Specific implementation example ten: This implementation example is different from any one of specific implementation examples one to nine in that: the power supply module 6 is inductively powered.

[0031] Example 1

[0032] The intelligent monitoring and early warning device for wind-induced vibration of overhead power transmission lines in this embodiment comprises: a transmission line monitoring sensor mechanism 1, a communication module 2, a data processing and storage module 3, a warning module 4, a global navigation satellite system reference station 5, and a power supply module 6;

[0033] A transmission line monitoring sensor mechanism 1 is installed on an overhead all-dielectric self-supporting transmission line and is used to collect and monitor the dancing position data of the all-dielectric self-supporting transmission line; the transmission line monitoring sensor mechanism 1 comprises: a deformation sensor based on Beidou signals and a multi-antenna global navigation satellite system receiver; the deformation sensor based on Beidou signals is composed of a deformation sensor and a controller; the deformation sensor is arranged on the transmission line; the deformation sensor is composed of an outer layer strain gauge (9), a middle layer strain gauge (10), an inner layer strain gauge (13), an outer layer connecting ceramic (7), a middle layer connecting ceramic (11), an inner layer connecting ceramic (14), an outer layer insulating ceramic (8), a middle layer insulating ceramic (12) and an inner layer insulating ceramic (15); the outer layer connecting ceramic (7), the outer layer insulating ceramic (8) and the outer layer strain gauge (9) constitute an outer layer sensing component, the two ends of the outer layer strain gauge (9) are respectively fixedly connected to the outer layer connecting ceramic (7), and the lower surface of the end of the outer layer connecting ceramic (7) is divided into The outer layer insulating ceramic (8) is fixedly connected to the inner layer of the middle layer of the strain gauge (10), the middle layer connecting ceramic (11) and the middle layer insulating ceramic (12) constitute a middle layer sensing component; the two ends of the middle layer strain gauge (10) are fixedly connected to the middle layer connecting ceramic (11), and the lower surface of the end of the middle layer connecting ceramic (11) is fixedly connected to the middle layer insulating ceramic (12); the inner layer strain gauge (13), the inner layer connecting ceramic (14) and the inner layer insulating ceramic (15) constitute an inner layer sensing component; the inner layer strain gauge (1 3) are respectively fixedly connected to inner layer connection ceramics (14) at both ends, and inner layer insulation ceramics (15) are respectively fixedly connected to the lower surface of the end of the inner layer connection ceramics (14); the inner layer insulation ceramics (15) in the inner layer sensing assembly are fixedly connected to the power transmission line, and the inner layer sensing assembly is arranged in the middle layer sensing assembly; the middle layer insulation ceramics (12) in the middle layer sensing assembly are fixedly connected to the power transmission line, and the middle layer sensing assembly is arranged in the outer layer sensing assembly; the outer layer insulation ceramics (8) in the outer layer sensing assembly are fixedly connected to the power transmission line;

[0034] The data processing and storage module 3 receives the data collected by the transmission line monitoring sensor mechanism 1 through the communication module 2, processes, calculates and stores the data;

[0035] The global navigation satellite system reference station 5 provides reference observations for the data processing and storage module 3 to solve;

[0036] The warning module 4 receives the calculation results of the data processing and storage module 3 through the communication module 2, and issues an alarm or early warning notification according to the settlement results;

[0037] The power supply module 6 supplies power to the data processing and storage module 3 and the global navigation satellite system reference station 5 .

[0038] The deformation sensor based on Beidou signal is powered by in-situ inductive power supply;

[0039] The deformation sensor based on Beidou signal collects the structural deformation data of the transmission line; it solves the problem of transmission line dancing caused by the combined effects of factors such as wind, rainfall, snowfall, etc. under specific meteorological conditions; this comprehensive monitoring helps to prevent serious accidents such as transmission line breakage and ensure the reliability of communication lines.

[0040] Through the transmission line monitoring sensor mechanism 1, the device can fully monitor various movements of the all-dielectric self-supporting transmission line, including wind deflection, swing, etc., so as to fully understand the status of the transmission line.

[0041] The multi-antenna global navigation satellite system receiver is installed and arranged on one side of the tower and is used to collect structural deformation data for monitoring the transmission line.

[0042] The power transmission line monitoring sensor mechanism 1 is an inductive power supply.

[0043] The multi-antenna global navigation satellite system receiver and the deformation sensor based on Beidou signals are connected via a radio frequency cable;

[0044] The deformation sensor based on Beidou signal is fixed on the transmission line and connected to the radio frequency cable between the multi-antenna global navigation satellite system receiver;

[0045] The GNSS reference station 5 is a BeiDou RTK reference station, which is installed by combining ground cages with poles. The GNSS reference station 5 adopts the BeiDou RTK differential positioning principle and BeiDou high-precision positioning technology, which improves the monitoring accuracy and frequency, making the measurement of the galloping of the all-medium self-supporting transmission line more accurate and real-time.

[0046] The power supply module 6 is photovoltaic power generation.

[0047] The device of the present invention can realize real-time monitoring of the power transmission line. Once abnormal dancing is found, it can be sensed in time through the warning module 4, which is convenient for timely discovery of line safety hazards and improves the safety of the power supply line. The power transmission line monitoring sensor mechanism 1 is composed of an outer layer sensor component, a middle layer sensor component and an inner layer sensor component, and the outer layer sensor component, the middle layer sensor component and the inner layer sensor component are for sensing and measuring the same position information, and have a layer protection mechanism, which improves the efficiency and accuracy of monitoring and the safety of the sensor.

Claims

1. An intelligent monitoring and early warning device for wind-induced vibration of overhead power transmission lines, characterized in that: include: Transmission line monitoring sensor mechanism 1, communication module 2, data processing and storage module 3, warning module 4, global navigation satellite system base station 5, power supply module 6; The transmission line monitoring sensor mechanism 1 is installed on the overhead all-dielectric self-supporting transmission line and is used to collect and monitor the dancing position data of the all-dielectric self-supporting transmission line; The transmission line monitoring sensor mechanism 1 comprises: a deformation sensor based on Beidou signals and a multi-antenna global navigation satellite system receiver; the deformation sensor based on Beidou signals is composed of a deformation sensor and a controller; the deformation sensor is arranged on the transmission line; the deformation sensor is composed of an outer layer strain gauge (9), a middle layer strain gauge (10), an inner layer strain gauge (13), an outer layer connecting ceramic (7), a middle layer connecting ceramic (11), an inner layer connecting ceramic (14), an outer layer insulating ceramic (8), a middle layer insulating ceramic (12) and an inner layer insulating ceramic (15); the outer layer connecting ceramic (7), the outer layer insulating ceramic (8) and the outer layer strain gauge (9) constitute an outer layer sensing component, the two ends of the outer layer strain gauge (9) are respectively fixedly connected to the outer layer connecting ceramic (7), and the lower surface of the end of the outer layer connecting ceramic (7) is respectively fixedly connected to the outer layer insulating ceramic (8); the middle layer strain gauge (10), the middle layer The connecting ceramic (11) and the middle insulating ceramic (12) constitute a middle sensing assembly; the two ends of the middle strain gauge (10) are respectively fixedly connected to the middle connecting ceramic (11), and the lower surface of the end of the middle connecting ceramic (11) is respectively fixedly connected to the middle insulating ceramic (12); the inner strain gauge (13), the inner connecting ceramic (14) and the inner insulating ceramic (15) constitute an inner sensing assembly; the two ends of the inner strain gauge (13) are respectively fixedly connected to the inner connecting ceramic (14), and the lower surface of the end of the inner connecting ceramic (14) is respectively fixedly connected to the inner insulating ceramic (15); in the inner sensing assembly, the inner insulating ceramic (15) is fixedly connected to the power transmission line, and the inner sensing assembly is arranged in the middle sensing assembly; the middle insulating ceramic (12) of the middle sensing assembly is fixedly connected to the power transmission line, and the middle sensing assembly is arranged in the outer sensing assembly; in the outer sensing assembly, the outer insulating ceramic (8) is fixedly connected to the power transmission line; The data processing and storage module 3 receives the data collected by the transmission line monitoring sensor mechanism 1 through the communication module 2, processes, calculates and stores the data; The global navigation satellite system reference station 5 provides reference observations for the data processing and storage module 3 to solve; The warning module 4 receives the calculation results of the data processing and storage module 3 through the communication module 2, and issues an alarm or early warning notification according to the settlement results; The power supply module 6 supplies power to the data processing and storage module 3 and the global navigation satellite system reference station 5 .

2. The intelligent monitoring and early warning device for wind yaw and sway of overhead power transmission lines according to claim 1 is characterized by: The deformation sensor based on Beidou signal is powered by in-situ inductive power supply.

3. The intelligent monitoring and early warning device for wind yaw and sway of overhead power transmission lines according to claim 1 is characterized in that: The deformation sensor based on Beidou signals collects structural deformation data of the transmission line.

4. The intelligent monitoring and early warning device for wind yaw and sway of overhead power transmission lines according to claim 1 is characterized by: The multi-antenna global navigation satellite system receiver is installed and arranged on one side of the tower and is used to collect structural deformation data for monitoring the transmission line.

5. The intelligent monitoring and early warning device for wind yaw and sway of overhead power transmission lines according to claim 1 is characterized by: The power transmission line monitoring sensor mechanism 1 is an inductive power supply.

6. The intelligent monitoring and early warning device for wind yaw and sway of overhead power transmission lines according to claim 1 is characterized by: The multi-antenna global navigation satellite system receiver is connected to the deformation sensor based on Beidou signals via a radio frequency cable.

7. The intelligent monitoring and early warning device for wind-induced vibration of overhead power transmission lines according to claim 1 is characterized in that: The deformation sensor based on Beidou signal is fixed on the transmission line and connected to the radio frequency cable between the multi-antenna global navigation satellite system receiver.

8. The intelligent monitoring and early warning device for wind yaw and sway of overhead power transmission lines according to claim 1 is characterized by: The global navigation satellite system reference station 5 is a Beidou RTK reference station, which is erected in the form of a ground cage combined with a pole.

9. The intelligent monitoring and early warning device for wind yaw and sway of overhead power transmission lines according to claim 1 is characterized by: The power supply module 6 is a photovoltaic power generation module or a battery.

10. The intelligent monitoring and early warning device for wind yaw and sway of overhead power transmission lines according to claim 1 is characterized by: The power supply module 6 is an inductive power supply.

Images