CN111900799A - Power transmission line monitoring system of iron and steel combination enterprise - Google Patents

Power transmission line monitoring system of iron and steel combination enterprise Download PDF

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Publication number
CN111900799A
CN111900799A CN202010608810.0A CN202010608810A CN111900799A CN 111900799 A CN111900799 A CN 111900799A CN 202010608810 A CN202010608810 A CN 202010608810A CN 111900799 A CN111900799 A CN 111900799A
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China
Prior art keywords
module
corona
monitoring module
main control
transmission line
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Inventor
邱军
黄剑凯
冯乾鸿
陈亮
张伟
熊友红
夏正发
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Wuhan Iron and Steel Co Ltd
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Wuhan Iron and Steel Co Ltd
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Priority to CN202010608810.0A priority Critical patent/CN111900799A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • G01R31/1263Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
    • G01R31/1272Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements

Abstract

The invention relates to the field of on-line monitoring of power transmission lines, in particular to a power transmission line monitoring system of a steel and iron integrated enterprise, which comprises the following components: the insulator corona discharge monitoring module is arranged on a transmission line between two substations and is used for collecting corona traveling waves generated on the transmission line; the anti-external-damage monitoring module is arranged around the transmission line and used for acquiring boundary crossing behavior information and/or intrusion behavior images of the surrounding environment; the partial discharge monitoring module is arranged at the junction of the cable joint and is used for acquiring a partial discharge pulse current signal of the cable joint; the main control module is used for determining the position of a pollution flashover fault point based on the corona traveling wave; the system is also used for sending an alarm signal to the position where the border-crossing behavior and/or the intrusion behavior occur based on the border-crossing behavior information and/or the intrusion behavior image; and the system is also used for determining the insulation degradation degree of the cable joint based on the local pulse current signal, and further effectively monitoring various potential safety hazards on the power transmission line of the iron and steel enterprise.

Description

Power transmission line monitoring system of iron and steel combination enterprise
Technical Field
The invention relates to the field of on-line monitoring of power transmission lines, in particular to a power transmission line monitoring system of a steel and iron integrated enterprise.
Background
Because in the iron and steel enterprise factory, active lime and iron metal dust pollution are more serious, and have very strong adhesive force on the vase, can't be washed clean by the rainwater, and filthy is because of the accumulation deposit easily on the insulator surface to lead to the pollution flashover occurence of failure, especially in the shaft tower near being close to sour gas steam boiler, the pollution flashover trip accident takes place more easily.
In addition, because the steel enterprise factory often has the muck to transport, engineering machine tool operation such as tip lorry, excavator, sedimentation tank soil sampler, crawler crane, wheeled crane can miss when the route high tension transmission line touches the wire, brings the hidden danger for the normal production in the factory.
In addition, the transmission line is subject to various factors such as electricity, heat, machinery, environment and the like, so that the transmission line is easy to cause faults, particularly in a cable joint, the cable joint generates heat due to overload of electricity, overhigh environmental temperature, aging or overlarge release resistance, the temperature is overhigh, and the insulation at the joint is degraded or even breaks down to cause accidents.
In view of the above-mentioned harsh environment, how to effectively monitor the potential safety hazard that does not occur is a technical problem to be solved urgently at present.
Disclosure of Invention
In view of the above, the present invention has been made to provide a power line monitoring system for an integrated iron and steel plant that overcomes or at least partially solves the above problems.
The invention provides a power transmission line monitoring system for a steel and iron integrated enterprise, which comprises:
the insulator corona discharge monitoring module is arranged on a transmission line between two substations and is used for collecting corona traveling waves generated on the transmission line;
the anti-external-damage monitoring module is arranged around the transmission line and used for acquiring boundary crossing behavior information or intrusion behavior images of the surrounding environment;
the partial discharge monitoring module is arranged at the junction of the cable joint and is used for acquiring a partial discharge pulse current signal of the cable joint;
the main control module is respectively connected with the insulator corona discharge monitoring module, the external damage prevention monitoring module and the partial discharge monitoring module;
the main control module is used for receiving the corona traveling wave and determining the position of a pollution flashover fault point based on the corona traveling wave, wherein the pollution flashover is the result generated by the corona traveling wave; the system is also used for receiving the border-crossing behavior information and/or the intrusion behavior image and sending an alarm signal to the position where the border-crossing behavior and/or the intrusion behavior occurs based on the border-crossing behavior information and/or the intrusion behavior image; and the device is also used for receiving the local pulse current signal and determining the insulation degradation degree of the cable joint based on the local pulse current signal.
Further, still include:
a power supply module comprising: the charging unit, the charging and discharging management unit and the energy storage unit are arranged;
the charging and discharging management unit is connected with the main control module, the charging unit charges the energy storage unit through the charging and discharging management unit, and the energy storage unit supplies power to the main control module through the charging and discharging management unit;
further, the master control module includes: a first power management unit;
the main control module is used for supplying power to the insulator corona discharge monitoring module, the outer-damage-prevention monitoring module and the partial discharge monitoring module through the first power management unit respectively.
Further, insulator corona discharge monitoring module includes:
the Rogowski coil is used for collecting the corona traveling wave;
the acquisition module is used for receiving the corona traveling wave acquired by the Rogowski coil and generating a monitoring log;
the GPS module is used for generating time information when the acquisition module acquires the corona traveling wave;
and one end of the transmission module is connected with the main control module, and the other end of the transmission module is respectively connected with the acquisition module and the GPS module and is used for transmitting the corona traveling wave and the time information to the main control module.
Further, the anti-external-damage monitoring module comprises:
the laser sensor is arranged on the line corridor and used for acquiring the border crossing behavior information of the object;
and the image sensor is arranged on the transmission line and used for acquiring an intrusion image of the object.
Further, the partial discharge monitoring module includes:
the capacitive coupling sensor is used for coupling partial discharge pulse current signals of the cable joint;
the coaxial cable is used for transmitting the partial discharge pulse current signal to the AD conversion module;
and the AD conversion module is connected with the main control template and is used for converting the local discharge pulse current signal and then sending the converted local discharge pulse current signal to the main control module.
Further, the main control module further comprises:
the analysis processing unit is respectively connected with the insulator corona discharge monitoring module, the external damage prevention monitoring module and the partial discharge monitoring module;
the watchdog unit is used for controlling the program to be restarted when the program in the main control module fails to operate;
the wired acquisition unit is connected with the external damage prevention monitoring module and the partial discharge monitoring module;
and the wireless acquisition unit is connected with the insulator corona discharge monitoring module.
Further, insulator corona discharge monitoring module still includes: the wire electricity taking module comprises;
the power taking unit is connected with the first power supply management unit;
and the second power supply management unit is connected with the power taking unit and is used for respectively supplying power to the Rogowski coil, the acquisition module, the GPS module and the transmission module.
Further, the main control module is configured to determine the position of the pollution flashover fault point based on the speed information of the corona traveling wave and the time difference information of the corona traveling wave reaching the substations at the two ends.
Further, the main control module is further configured to determine the potential safety hazard risk of the pollution flashover based on the amplitude of the corona traveling wave.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
the invention provides a power transmission line monitoring system for a steel and iron integrated enterprise, which comprises: the insulator corona discharge monitoring module is arranged on a transmission line between two substations and is used for collecting corona traveling waves generated on the transmission line; the anti-external-damage monitoring module is arranged around the transmission line and used for acquiring boundary crossing behavior information or intrusion behavior images of the surrounding environment; the partial discharge monitoring module is arranged at a grounding wire of the cable joint and is used for acquiring a partial discharge pulse current signal of the cable joint; the main control module is respectively connected with the insulator corona discharge monitoring module, the external damage prevention monitoring module and the partial discharge detection device; the main control module is used for receiving the corona traveling wave and determining the position of a pollution flashover fault point based on the corona traveling wave, wherein the pollution flashover is the result generated by the corona traveling wave; the system is also used for receiving the border-crossing behavior information and/or the intrusion behavior image and sending out an alarm signal based on the border-crossing behavior information and/or the intrusion behavior position; the system is also used for receiving the local pulse current signals, determining the insulation degradation degree of the cable joint based on the local pulse current signals, and further effectively monitoring various potential safety hazards on the power transmission line of the iron and steel enterprise, and further avoiding unsafe accidents.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 shows a schematic structural diagram of a power transmission line monitoring system of a steel and iron integrated enterprise in an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The general idea of the invention is as follows:
the invention provides a power transmission line monitoring system for a steel and iron integrated enterprise, which comprises: the device comprises an insulator corona discharge monitoring module, an anti-external-damage monitoring module and a partial discharge monitoring module, wherein the insulator corona discharge monitoring module is arranged on a transmission line between two substations and used for acquiring corona traveling waves generated on the transmission line; the main control module is respectively connected with the insulator corona discharge monitoring module, the external damage prevention monitoring module and the partial discharge monitoring module, and is used for receiving the corona traveling wave and determining the position of a pollution flashover fault point based on the corona traveling wave, wherein the pollution flashover is the result generated by the corona traveling wave; the system is also used for receiving the border-crossing behavior information and/or the intrusion behavior image and sending an alarm signal to the position where the border-crossing behavior and/or the intrusion behavior occurs based on the border-crossing behavior information and/or the intrusion behavior image; the system is also used for receiving the partial pulse discharge signal, determining the insulation degradation degree of the cable joint based on the partial pulse current signal, and further effectively monitoring various potential safety hazards on the power transmission line of the iron and steel enterprise, so that unsafe accidents are avoided.
Example one
The power transmission line monitoring system of the iron and steel combination enterprise, provided by the invention, is applied to the power transmission line of the iron and steel combination enterprise and is used for effectively monitoring potential safety hazards on the power transmission line.
As shown in fig. 1, the system includes: the device comprises an insulator corona discharge monitoring module 101, an external damage prevention monitoring module 102, a partial discharge monitoring module 103 and a main control module 104.
The main control module 104 is connected to the insulator corona discharge monitoring module 101, the external damage prevention monitoring module 102, and the partial discharge monitoring module 103, respectively.
The insulator corona discharge monitoring module 101 is arranged on a transmission line between two transformer substations and is used for collecting corona traveling waves generated on the transmission line.
The anti-external-damage monitoring module 102 is disposed around the transmission line, and is configured to collect boundary-crossing behavior information and/or intrusion behavior images of a surrounding environment.
And the partial discharge monitoring module 103 is arranged at the ground wire of the cable joint and used for acquiring a partial discharge pulse current signal of the cable joint.
The main control module 104 is configured to receive the corona traveling wave, and determine a position of a pollution flashover fault point based on the corona traveling wave, where pollution flashover is a result generated by the corona traveling wave; the system is also used for receiving the border-crossing behavior information and/or the intrusion behavior image and sending an alarm signal to the position where the border-crossing behavior and/or the intrusion behavior occurs based on the border-crossing behavior information and/or the intrusion behavior image; and the device is also used for receiving the local pulse current signal and determining the insulation degradation degree of the cable joint based on the local pulse current signal.
In the specific embodiment, each device is described in detail separately.
First, the insulator corona discharge monitoring module 101 includes: the Rogowski coil is used for collecting the corona traveling wave; the acquisition module is used for receiving the corona traveling wave acquired by the Rogowski coil and generating a monitoring log; and one end of the transmission module is connected with the main control module 104, and the other end of the transmission module is respectively connected with the acquisition module and the GPS module, and is used for transmitting the corona traveling wave and the time information to the main control module 103.
Wherein, this collection module includes: the data processing unit is used for effectively processing the corona traveling wave and determining a specific position for generating the corona traveling wave based on a processing result; the storage unit is used for storing the received corona traveling wave and the monitoring log; the watchdog circuit is used for preventing program dead loop caused by disorder of stored data due to external magnetic field interference, and then restarting the program when the program dead loop occurs so as to enable the monitoring to be in a normal and ordered working state.
The main control module 104 includes: the main control module 104 supplies power to the insulator corona discharge monitoring module, the external damage prevention monitoring module and the partial discharge monitoring module through the first power management unit.
This insulator corona discharge monitoring module 101 still includes: get the electric module with the wire, this wire gets the electric module includes: the electricity taking unit is connected with the first power supply management unit; and the second power supply management unit is connected with the power taking unit and is used for respectively supplying power to the Rogowski coil, the acquisition module, the GPS module and the transmission module. Thereby realizing the supply of electric energy. The electricity taking unit can be specifically an electricity taking CT device.
For the corona traveling wave received by the main control module 104 and collected by the insulator corona discharge monitoring module 101, the specific processing procedure is as follows:
firstly, the amplitude of the corona traveling wave is judged, when the amplitude is larger than a preset value, the potential safety hazard of the pollution flashover is determined, and if the amplitude does not exceed the preset value, the risk is determined to be low, and the treatment can be omitted.
And when the amplitude is larger than a preset value, determining the position of a pollution flashover fault point based on the speed information of the corona traveling wave and the time difference information of the corona traveling wave reaching the transformer substations at two ends, wherein the pollution flashover is the consequence generated by the corona traveling wave.
Specifically, the velocity information of the corona traveling waveDetermining the length L of a transmission line between two substations as the velocity v of the electromagnetic wave propagationC1C2According to the fact that the time when the corona traveling wave reaches the substations at the two ends is T1 and T2, the time difference T1-T2 between the substations at the two ends receiving the corona traveling wave can be obtained actually, and assuming that the position of the pollution flashover fault point is D, L1 is the distance from the pollution flashover fault point to one substation C1, and L2 is the distance from the pollution flashover fault point to the other substation C2.
Figure BDA0002560154040000071
Figure BDA0002560154040000072
Thereby, the position of the pollution flashover fault point on the transmission line is determined.
The anti-external damage monitoring module 102 includes: the laser sensor is arranged on the line corridor and used for acquiring the border crossing behavior information of the object; and the image sensor is arranged on the transmission line and used for acquiring an intrusion image of the object.
Specifically, by arranging the laser sensor on the line corridor, once the laser sensor detects that the construction operation machines such as a waste soil transfer machine, a dump truck, an excavator, a sedimentation tank soil-taking vehicle, a crawler crane, a wheel crane and the like touch the lead by mistake, an alarm signal is triggered at the position according to the position of the laser sensor which detects the situation, for example, an alarm is given through an indicator lamp or a warning lamp, so that drivers who set up the construction operation machines pay attention to the fact that the construction operation machines leave the position as soon as possible. Thereby ensuring the normal operation of the production in the factory and avoiding unsafe accidents.
By providing an image sensor, such as a camera, on the transmission line. Once the image sensor detects that people or animals invade the boundary area in the detection range, the people or the animals can be tracked, and an alarm signal can be triggered to the position according to the position of the image sensor, so that the invaded people or animals are reminded to leave the position. Thereby ensuring the safety of the external intruder.
The partial discharge monitoring module 103 includes: the capacitive coupling sensor is used for coupling partial discharge pulse current signals of the cable joint; the coaxial cable is used for transmitting the partial discharge pulse current signal to the AD conversion module; and the AD conversion module is connected with the main control module and used for converting the partial discharge pulse current signal and then sending the converted partial discharge pulse current signal to the main control module 104.
In the operation process of the transmission line, faults are easily caused due to the action of various factors such as electricity, heat, machinery, environment and the like, particularly cable joints, therefore, the partial discharge monitoring module is arranged on a grounding wire of the cable joint, and when electricity overload, weather heat, aging or over-resistance relief are generated, so that the temperature is too high, insulation degradation at the joint is caused, and even breakdown is caused, the hidden danger can be timely monitored. Effectively avoiding the occurrence of faults.
The AD conversion module (analog-to-digital conversion module) is configured to amplify the analog signal, convert the analog signal into a digital signal, and transmit the digital signal to the main control module 104.
The main control module 104 can determine the insulation degradation degree of the cable joint according to the local discharge pulse current signal acquired by the local discharge pulse current signal which is arranged at the cable joint junction where the potential hazard may occur, and perform timely maintenance according to the insulation degradation degree.
Specifically, the local discharge pulse current signal is a pulse wave, and the main control module 104 determines the risk level of the discharge generated by the local discharge pulse current signal according to the amplitude and the frequency of the pulse wave, so as to determine the insulation degradation level.
In an alternative embodiment, the system further comprises: a power supply module, the power supply module comprising: the charging unit, the charge and discharge management unit and the energy storage unit.
The charging and discharging management unit is connected with the main control module, the charging unit charges the energy storage unit through the charging and discharging management unit, and the energy storage unit supplies power to the main control module through the charging and discharging management unit.
By adopting the power supply module, power can be supplied to each device in the system. So as to ensure that each device can continuously and effectively operate.
Meanwhile, the main control module also comprises a first power management unit, so as to supply power for each device connected to the main control module.
The main control module 104 further includes:
and the analysis processing unit is respectively connected with the insulator corona discharge monitoring module, the external damage prevention monitoring module and the partial discharge monitoring module. The analysis processing unit is used for processing the data acquired by each monitoring module so as to control other equipment to execute corresponding operations. The analysis processing unit may specifically be any one of the following:
MCU (micro control unit), CPU (central processing unit), DSP (digital signal processing unit).
And the watchdog unit is used for controlling the restart program when the program in the main control module 104 fails to operate.
And the wired acquisition unit is connected with the external damage prevention monitoring module 102 and the partial discharge monitoring module 103. The wired acquisition unit specifically comprises a digital acquisition unit and a network data acquisition unit, wherein the laser sensor is connected with the main control module 104 through the digital acquisition unit, and the image sensor is connected with the main control module 104 through the network data acquisition unit.
And the wireless acquisition unit is connected with the insulator corona discharge monitoring module 101. The wireless acquisition unit mainly has a short-distance communication module, such as RF, Zigbee and the like.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
the invention provides a power transmission line monitoring system for a steel and iron integrated enterprise, which comprises: the insulator corona discharge monitoring module is arranged on a transmission line between two substations and is used for collecting corona traveling waves generated on the transmission line; the anti-external-damage monitoring module is arranged around the transmission line and is used for acquiring border-crossing behavior information and/or intrusion behavior images of the surrounding environment; the partial discharge monitoring module is arranged at a grounding wire of the cable joint and is used for acquiring a partial discharge pulse current signal of the cable joint; the main control module is respectively connected with the insulator corona discharge monitoring module, the external damage prevention monitoring module and the partial discharge detection device; the main control module is used for receiving the corona traveling wave and determining the position of a pollution flashover fault point based on the corona traveling wave, wherein the pollution flashover is the result generated by the corona traveling wave; the system is also used for receiving the border-crossing behavior information and/or the intrusion behavior image and sending out an alarm signal based on the border-crossing behavior information and/or the intrusion behavior position; the system is also used for receiving the local pulse current signals, determining the insulation degradation degree of the cable joint based on the local pulse current signals, and further effectively monitoring various potential safety hazards on the power transmission line of the iron and steel enterprise, and further avoiding unsafe accidents.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A power transmission line monitoring system of a steel and iron integrated enterprise is characterized by comprising:
the insulator corona discharge monitoring module is arranged on a transmission line between two substations and is used for collecting corona traveling waves generated on the transmission line;
the anti-external-damage monitoring module is arranged around the transmission line and used for acquiring boundary crossing behavior information or intrusion behavior images of the surrounding environment;
the partial discharge monitoring module is arranged at the junction of the cable joint and is used for acquiring a partial discharge pulse current signal of the cable joint;
the main control module is respectively connected with the insulator corona discharge monitoring module, the external damage prevention monitoring module and the partial discharge monitoring module;
the main control module is used for receiving the corona traveling wave and determining the position of a pollution flashover fault point based on the corona traveling wave, wherein the pollution flashover is the result generated by the corona traveling wave; the system is also used for receiving the border-crossing behavior information and/or the intrusion behavior image and sending an alarm signal to the position where the border-crossing behavior and/or the intrusion behavior occurs based on the border-crossing behavior information and/or the intrusion behavior image; and the device is also used for receiving the local pulse current signal and determining the insulation degradation degree of the cable joint based on the local pulse current signal.
2. The system of claim 1, wherein the master control module is configured to determine the potential safety hazard risk of the arcing based on an amplitude of the corona traveling wave.
3. The system of claim 1, wherein the main control module is configured to determine the location of the pollution flashover fault point based on speed information of the corona traveling wave and time difference information of arrival of the corona traveling wave at substations at two ends.
4. The system of claim 1, further comprising:
a power supply module comprising: the charging unit, the charging and discharging management unit and the energy storage unit are arranged;
the charging and discharging management unit is connected with the main control module, the charging unit charges the energy storage unit through the charging and discharging management unit, and the energy storage unit supplies power to the main control module through the charging and discharging management unit.
5. The system of claim 4, wherein the master module comprises: a first power management unit;
the main control module is used for supplying power to the insulator corona discharge monitoring module, the outer-damage-prevention monitoring module and the partial discharge monitoring module through the first power management unit respectively.
6. The system of claim 5, wherein the insulator corona discharge monitoring module comprises:
the Rogowski coil is used for collecting the corona traveling wave;
the acquisition module is used for receiving the corona traveling wave acquired by the Rogowski coil and generating a monitoring log;
the GPS module is used for generating time information when the acquisition module acquires the corona traveling wave;
and one end of the transmission module is connected with the main control module, and the other end of the transmission module is respectively connected with the acquisition module and the GPS module and is used for transmitting the corona traveling wave and the time information to the main control module.
7. The system of claim 1, wherein the anti-vandalism monitoring module comprises:
the laser sensor is arranged on the line corridor and used for acquiring the border crossing behavior information of the object;
and the image sensor is arranged on the transmission line and used for acquiring an intrusion image of the object.
8. The system of claim 1, wherein the partial discharge monitoring module comprises:
the capacitive coupling sensor is used for coupling partial discharge pulse current signals of the cable joint;
the coaxial cable is used for transmitting the partial discharge pulse current signal to the AD conversion module;
and the AD conversion module is connected with the main control template and is used for converting the local discharge pulse current signal and then sending the converted local discharge pulse current signal to the main control module.
9. The system of claim 1, wherein the master module further comprises:
the analysis processing unit is respectively connected with the insulator corona discharge monitoring module, the external damage prevention monitoring module and the partial discharge monitoring module;
the watchdog unit is used for controlling the program to be restarted when the program in the main control module fails to operate;
the wired acquisition unit is connected with the external damage prevention monitoring module and the partial discharge monitoring module;
and the wireless acquisition unit is connected with the insulator corona discharge monitoring module.
10. The system of claim 6, wherein the insulator corona discharge monitoring module further comprises: the wire electricity taking module comprises;
the power taking unit is connected with the first power supply management unit;
and the second power supply management unit is connected with the power taking unit and is used for respectively supplying power to the Rogowski coil, the acquisition module, the GPS module and the transmission module.
CN202010608810.0A 2020-06-29 2020-06-29 Power transmission line monitoring system of iron and steel combination enterprise Pending CN111900799A (en)

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CN113092959A (en) * 2021-03-31 2021-07-09 广东电网有限责任公司清远供电局 Insulator pollution flashover monitoring method, device, equipment and storage medium
CN113960431A (en) * 2021-10-28 2022-01-21 沈阳工程学院 Intelligent overhead cable external-damage-prevention monitoring system and method

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Application publication date: 20201106