CN111162480B - Monitoring method, device and system for direct-current ice melting operation of power transmission line - Google Patents
Monitoring method, device and system for direct-current ice melting operation of power transmission line Download PDFInfo
- Publication number
- CN111162480B CN111162480B CN202010007040.4A CN202010007040A CN111162480B CN 111162480 B CN111162480 B CN 111162480B CN 202010007040 A CN202010007040 A CN 202010007040A CN 111162480 B CN111162480 B CN 111162480B
- Authority
- CN
- China
- Prior art keywords
- transmission line
- power transmission
- visible light
- module
- insulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing 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
- G01R31/1218—Testing 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 using optical methods; using charged particle, e.g. electron, beams or X-rays
-
- 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
- H02G7/00—Overhead installations of electric lines or cables
-
- 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
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
Abstract
The embodiment of the application provides a monitoring method, a device and a system for direct-current ice melting operation of a power transmission line, wherein the method comprises the following steps: measuring the thickness of ice on the power transmission line; starting a direct-current ice melting device to melt ice on the power transmission line according to the fact that the icing thickness is larger than a first threshold value; measuring the number of discharge photons on the surface of an insulator on the power transmission line in real time; calculating the area of light spots on the surface of the insulator according to the number of discharge photons; and controlling the ice melting device to stop melting ice according to the condition that the number of the discharge photons is greater than the second threshold value and the area of the facula is greater than the third threshold value. The system comprises a monitoring center, a mobile terminal and a monitoring device for the direct-current ice melting operation of the power transmission line. The embodiment of the application ensures the safety of the direct-current ice melting operation by monitoring the electric arc, the number of discharge photons and the area of the light spot of the insulator on the power transmission line.
Description
Technical Field
The present application relates to the technical field of ice melting operation of power transmission lines, and in particular, to a monitoring method, device and system for dc ice melting operation of power transmission lines.
Background
The transmission line, especially the extra-high voltage and extra-high voltage line, plays a crucial role in transmitting electric energy as a power grid framework line, and the quality of the operation condition of the transmission line directly relates to the transmission quality of the electric energy. In rainy and snowy weather, icing phenomenon can occur on the transmission line, and the icing of the transmission line can cause damage to a tower, trip of the line, inclination of an insulator string, sagging of a lead and the like, so that the safety and normal operation of the transmission line are seriously threatened.
When the power transmission line is frozen, deicing the power transmission line is an important work task for ground workers. In the related technology, the power transmission line needs to be cut off when the power transmission line is deiced, and a direct-current deicing device is adopted for deicing, however, the load burden of the peripheral lines is greatly increased when the power transmission line is cut off, if the live deicing operation is carried out, ice water flows on the surface of an insulator in the deicing process, so that dirt such as metal dust on the surface of the insulator is discharged to form a discharge channel, and along with the increase of current, the insulator is discharged along the surface, and further the occurrence of insulator flashover accidents is caused.
Disclosure of Invention
The application provides a monitoring method, a monitoring device and a monitoring system for direct current ice melting operation of a power transmission line, and aims to solve the problem that the safety of live working of the direct current ice melting operation of the power transmission line is low.
In a first aspect, the present application provides a monitoring method for dc ice melting operation of a power transmission line, the method including:
measuring the thickness of ice on the power transmission line;
starting a direct-current ice melting device to melt ice on the power transmission line according to the condition that the icing thickness is larger than a first threshold value;
judging whether an insulator on the power transmission line generates an arc in real time;
if the insulator on the power transmission line is in an arc state, controlling the ice melting device to stop melting ice;
if the insulator on the power transmission line does not generate electric arcs, acquiring the number of discharge photons on the surface of the insulator on the power transmission line;
calculating the area of light spots on the surface of the insulator according to the number of the discharge photons;
judging whether the number of the discharge photons is greater than a second threshold value or not and whether the area of the light spot is greater than a third threshold value or not;
and if the number of the discharge photons is greater than a second threshold value and the area of the light spot is greater than a third threshold value, controlling the ice melting device to stop melting ice.
Optionally, the determining whether an arc occurs in the insulator on the power transmission line includes:
shooting a visible light image of an insulator on the power transmission line by a visible light and ultraviolet light integrated camera;
and carrying out image detection on the visible light image, and judging whether the insulator on the power transmission line has an arc or not.
Optionally, the obtaining the number of discharge photons on the surface of the insulator on the power transmission line includes: and shooting an ultraviolet image of the insulator on the power transmission line by a visible light and ultraviolet light integrated camera, and obtaining the number of discharge photons according to the ultraviolet image.
In a second aspect, the present application further provides a monitoring device for dc ice melting operation of a power transmission line, comprising a visible light and ultraviolet light integrated camera, a communication module and a power module, wherein,
the visible light and ultraviolet light integrated camera comprises an ultraviolet light shooting module, a visible light shooting module and a processor module, wherein the shooting direction of the ultraviolet light shooting module is parallel to and the same as that of the visible light shooting module, the ultraviolet light shooting module and the visible light shooting module are respectively used for shooting insulators on the power transmission line, the processor module is respectively electrically connected with the ultraviolet light shooting module and the visible light shooting module, and the processor module is used for calculating the number of discharge photons according to an ultraviolet image shot by the ultraviolet light shooting module;
the communication module and the power supply module are both arranged on the visible light and ultraviolet light integrated camera, the processor module is electrically connected with the communication module, the power supply module is respectively electrically connected with the visible light and ultraviolet light integrated camera and the communication module, and the processor module is used for sending the discharge photon number to the communication module.
Optionally, the communication module comprises a SIM card module.
Optionally, still include the unmanned aerial vehicle link, the unmanned aerial vehicle link sets up in the integrative camera of visible light and ultraviolet light with the module is shot to the ultraviolet light shooting opposite direction's one end, the couple phase-match that sets up on unmanned aerial vehicle link and the unmanned aerial vehicle.
Optionally, the visible light and ultraviolet light integrated camera further comprises a near-infrared and visible light fusion defogging module, the near-infrared and visible light fusion defogging module is electrically connected with the processor module, and the near-infrared and visible light fusion defogging module is used for shooting a defogged visible light image and sending the defogged visible light image to the processor.
Optionally, the module is shot to ultraviolet ray, the camera outside of the module is shot to visible light all is provided with rain-proof cover and electric wiper, electric wiper with the treater electricity is connected, the camera outside of the module is shot to visible light is provided with antifogging coating. In a third aspect, the present application further provides a monitoring system for dc ice melting operation of a power transmission line, including: a monitoring center, a mobile terminal and a monitoring device for the DC ice melting operation of the transmission line according to any of the above schemes, wherein,
the communication module of the monitoring device for the direct-current ice melting operation of the power transmission line is respectively in communication connection with the monitoring center and the mobile terminal, and the monitoring center is in communication connection with the mobile terminal;
the monitoring center is used for calculating the spot area on the surface of the insulator according to the number of the discharge photons;
and the mobile terminal is used for carrying out early warning when the area of the light spot is larger than a third threshold value according to the fact that the number of the discharge photons is larger than the second threshold value.
Optionally, the system further comprises an unmanned aerial vehicle, wherein the unmanned aerial vehicle is in communication connection with the monitoring center, and the unmanned aerial vehicle is provided with a hook matched with a hanging ring arranged on the visible light and ultraviolet light integrated camera.
The monitoring method, device and system for the direct-current ice melting operation of the power transmission line have the advantages that:
according to the monitoring method for the direct-current ice melting operation of the power transmission line, the direct-current ice melting device is started to melt ice in time when the icing thickness on the power transmission line is larger than a first threshold value, the power transmission line is prevented from being broken down due to over-thick icing on the power transmission line, visible light monitoring and ultraviolet light monitoring are carried out on the insulator on the power transmission line through the visible light and ultraviolet light integrated camera, when the number of electric arcs or discharge photons of the insulator on the power transmission line is larger than a second threshold value, the ice melting device is controlled to stop melting ice when the area of a light spot is larger than a third threshold value, the phenomenon that the insulator is subjected to surface discharge to cause insulator flashover accidents is. The monitoring device for transmission line direct current ice-melt operation that this application embodiment provided, the initial state of discharging before the creeping discharge appears in the camera monitoring insulator through the module is shot to the ultraviolet ray, through the visible light camera and infrared camera monitoring when discharging and the insulator surface condition of discharging in taking place, the visible light has been assembled, three kinds of cameras of ultraviolet light and infrared light are to the insulator surface condition of discharging and are monitored comprehensively, be favorable to the accurate observation insulator surface condition of discharging of watch dog, thereby stop the direct current ice-melt operation before the emergence of insulator flashover accident, ensure safety. The monitoring system for the direct-current ice melting operation of the power transmission line, provided by the embodiment of the application, is suitable for the direct-current ice melting operation of ultrahigh-voltage and extra-high-voltage power transmission lines such as 500kV, +/-800 kV, 1000kV, +/-1100 kV and the like, guarantees the safety of live working, and is also suitable for the power transmission line under the condition of power failure.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a schematic flow chart of a monitoring method for direct-current ice melting operation of a power transmission line according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a monitoring device for dc ice melting operation of a power transmission line according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a monitoring system for dc ice melting operation of a power transmission line according to an embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, a schematic flow chart of a monitoring method for a direct-current ice melting operation of a power transmission line according to an embodiment of the present disclosure is shown in fig. 1, where the monitoring method for the direct-current ice melting operation of the power transmission line according to the embodiment of the present disclosure includes the following steps:
step S110: and measuring the thickness of the ice on the power transmission line.
The icing thickness on the power transmission line can be measured by the ice coating image online monitoring device or the ice coating weight online monitoring device. The icing image online monitoring device can be arranged on a tower, a transmission line photo is transmitted back to a monitoring center in real time, and a line operation and maintenance worker calculates the icing thickness according to the proportional relation between the icing thickness on the transmission line photo and the diameter of the transmission line. The icing weight on-line monitoring device can be arranged on the power transmission line, when the power transmission line is iced, the icing thickness is larger, the weight value monitored by the icing weight on-line monitoring device is larger, therefore, the corresponding relation between the icing thickness and the weight value can be established, and the icing thickness can be converted according to the monitored weight value.
Step S120: and starting the direct-current ice melting device to melt ice on the power transmission line according to the condition that the icing thickness is larger than the first threshold value.
In the embodiment of the application, the first threshold value is 10mm, and when the monitoring center monitors that the thickness of ice on the power transmission line is greater than 10mm, the direct-current ice melting device is controlled to melt ice on the power transmission line.
Step S130: and judging whether the insulator on the power transmission line has electric arc or not.
When an arc occurs on the insulator, indicating that the insulator is about to flashover, step S180 must be executed immediately: and controlling the ice melting device to stop melting ice. According to the method and the device, after the direct-current ice melting device starts ice melting, whether the insulator is in an arc state or not is monitored in real time, and the ice melting operation safety is effectively guaranteed.
The visible light and ultraviolet light integrated camera is used for shooting visible light images of the insulator on the power transmission line, and the visible light and ultraviolet light integrated camera is used for sending the visible light images to the monitoring center.
The image detection is carried out on the visible light image in the monitoring center, the image detection comprises brightness analysis, and since the brightness of the arc is higher than that of the insulator, whether the arc appears on the insulator can be identified by carrying out the brightness analysis on the visible light image pixel by pixel.
Step S140: and if the insulator on the power transmission line does not generate electric arcs, acquiring the number of discharge photons on the surface of the insulator on the power transmission line.
The visible light and ultraviolet light integrated camera shoots ultraviolet images on the insulator on the power transmission line, the visible light and ultraviolet light integrated camera calculates the number of discharge photons according to the ultraviolet images, and the number of the discharge photons and the ultraviolet images are sent to the monitoring center.
Step S150: and calculating the spot area of the surface of the insulator according to the number of the discharge photons.
The method comprises the steps of recording experimental data of the spot areas corresponding to various discharge photon numbers in advance through experiments, and fitting a polynomial function between the discharge photon numbers and the spot areas on the surface of the insulator in advance by using a least square method, so that in the step, the collected discharge photon numbers can be substituted into the polynomial function, and the spot areas on the surface of the insulator can be obtained through calculation.
Step S160: and judging whether the number of the discharge photons is greater than a second threshold value or not and whether the area of the light spot is greater than a third threshold value or not.
The number of discharge photons and the area of the light spot are important expressions of corona discharge before insulator flashover, and the number of discharge photons and the area of the light spot are judged to predict the occurrence of insulator flashover accidents in advance.
In the embodiment of the present application, the second threshold may be 8000, and the third threshold may be one fourth of the surface area of the insulator near the wire side.
Step S170: and if the number of the discharge photons is less than or equal to the second threshold value and the area of the light spot is less than or equal to the third threshold value, controlling the ice melting device to continuously melt ice.
If the number of the discharge photons is less than or equal to the second threshold value and the area of the light spot is less than or equal to the third threshold value, the probability of the current insulator flashover is low, and the ice melting operation can be continued.
Step S180: and controlling the ice melting device to continuously melt ice.
From the number of discharge photons and the spot area, it can be determined whether the extent of discharge will cause flashover. When the number of the discharge photons is larger than the second threshold value and the area of the light spot is larger than the third threshold value, the monitoring center controls the ice melting device to stop melting ice, and the insulator is prevented from discharging along the surface to further cause the insulator flashover accident.
According to the monitoring method for the direct-current ice melting operation of the power transmission line, the direct-current ice melting device is started to melt ice in time when the icing thickness on the power transmission line is larger than a first threshold value, the power transmission line is prevented from being broken down due to over-thick icing on the power transmission line, visible light monitoring and ultraviolet light monitoring are carried out on the insulator on the power transmission line through the visible light and ultraviolet light integrated camera, when the number of electric arcs or discharge photons of the insulator on the power transmission line is larger than a second threshold value, the ice melting device is controlled to stop melting ice when the area of a light spot is larger than a third threshold value, the phenomenon that the insulator is discharged along the surface and further an insulator flashover accident is caused.
The embodiment of the present application further provides a monitoring device for the direct current ice melting operation of the power transmission line, refer to fig. 2, which is a schematic structural diagram of the monitoring device for the direct current ice melting operation of the power transmission line provided in the embodiment of the present application, and as shown in fig. 2, the monitoring device for the direct current ice melting operation of the power transmission line provided in the embodiment of the present application includes a visible light and ultraviolet light integrated camera 1, a communication module 13, and a power module 14.
The visible light and ultraviolet light integrated camera 1 comprises an ultraviolet light shooting module 11, a visible light shooting module 12 and a processor module 15, the shooting direction of the ultraviolet light shooting module 11 is parallel to and the same as the shooting direction of the visible light shooting module 12, and the ultraviolet light shooting module 11 and the visible light shooting module 12 are respectively used for shooting insulators on the power transmission line.
The processor module 15 is respectively connected with the ultraviolet light shooting module 11 and the visible light shooting module 12, and the processor module 15 calculates the number of the discharge photons according to the ultraviolet image shot by the ultraviolet light shooting module.
Furthermore, the visible light and ultraviolet light integrated camera 1 can further comprise a near-infrared and visible light fusion defogging module, the near-infrared and visible light fusion defogging module is electrically connected with the processor module, and by utilizing the characteristic of strong near-infrared penetrating power, a visible light image with a defogging effect can be shot and sent to the processor.
The module is shot to ultraviolet ray, the module is shot to visible light and the camera outside of near-infrared and visible light fusion defogging module all is provided with rain-proof cover and electric wiper, electric wiper with the treater electricity is connected, and the camera outside of module is shot to visible light is provided with antifog coating. Rain-proof cover is used for avoiding the ultraviolet ray to shoot the inside drenching of camera of module, visible light shooting module, and electronic windscreen wiper passes through treater control and starts for scrape the rainwater on camera surface. Due to the design of the rain cover and the electric wiper, the visible light and ultraviolet light integrated camera 1 can shoot the power transmission line outdoors in light rain or snow weather. The antifogging layer can be the antifogging coating film on camera surface, avoids the camera of visible light shooting module to haze and influence the shooting effect, and of course, can also set up the antifogging layer on the camera surface of ultraviolet ray shooting module and near-infrared and visible light integration defogging module.
The communication module 13 and the power supply module 14 are both arranged on the visible light and ultraviolet light integrated camera 1, and the processor module 15 is electrically connected with the communication module 13. The communication module 13 comprises a SIM card module and can carry out GPRS/3G/4G/5G communication.
The power module 14 is electrically connected to the visible light and ultraviolet light integrated camera 1 and the communication module 13, respectively, and the power module 14 includes a storage battery.
One end opposite to the shooting direction of the ultraviolet light shooting module 11 in the visible light and ultraviolet light integrated camera 1 is provided with an unmanned aerial vehicle hanging ring 16, the unmanned aerial vehicle hanging ring 16 can be hung on an unmanned aerial vehicle which is provided with a hook matched with the unmanned aerial vehicle, and the unmanned aerial vehicle carries the visible light and ultraviolet light integrated camera 1 to shoot the power transmission line.
Of course, the unmanned aerial vehicle suspension loop 16 may be used to suspend the visible light and ultraviolet light integrated camera 1 on a tower capable of shooting the power transmission line for shooting.
The monitoring device for direct current ice melting operation of transmission line that this application embodiment provided, the initial state of discharging before the creeping discharge appears in the camera monitoring insulator through the module is shot to the ultraviolet ray, through the insulator surface condition of discharging in the visible light camera monitoring, the two kinds of cameras of visible light, ultraviolet ray have been assembled and have been monitored the insulator surface condition of discharging comprehensively, be favorable to the accurate observation insulator surface condition of discharging of watch dog, the facula area is as an important reference basis that whether the operating personnel assesses the insulator can take place the pollution flashover. Therefore, the direct-current ice melting operation is stopped before the insulator flashover accident happens, and the line tripping caused by the direct-current ice melting operation of the power transmission line is prevented.
The present application further provides a monitoring system for transmission line dc ice melting operation, refer to fig. 3, which is a schematic structural diagram of the monitoring system for transmission line dc ice melting operation provided in the embodiment of the present application, and as shown in fig. 3, the monitoring system for transmission line dc ice melting operation provided in the embodiment of the present application includes the above monitoring device, monitoring center, mobile terminal and unmanned aerial vehicle.
Monitoring devices's communication module respectively with surveillance center and mobile terminal communication connection, the surveillance center is connected with mobile terminal, and mobile terminal includes intelligent communication terminal, for example smart mobile phone, is provided with the couple on the unmanned aerial vehicle, with 16 phase-matchs of unmanned aerial vehicle link.
The monitoring center obtains the icing thickness on the power transmission line through an ice coating image on-line monitoring device or an ice coating weight on-line monitoring device or other modes, sending a starting signal to the direct current ice melting device according to the icing thickness being larger than a first threshold value, melting ice on the transmission line by using the direct current ice melting device, and the monitoring device is moved to the vicinity of the power transmission line by the unmanned aerial vehicle to shoot the power transmission line, so as to obtain a visible light image, a discharge photon number and an ultraviolet light image which are sent by the visible light and ultraviolet light integrated camera 1, calculating the area of the light spot according to the number of the discharge photons, calculating the area of the light spot according to the fact that the number of the discharge photons is larger than a second threshold value and the area of the light spot is larger than a third threshold value, and sending a stop signal to the direct current ice melting device by combining the ultraviolet light image and the visible light image, sending an early warning signal to the mobile terminal, controlling the direct current ice melting device to stop melting ice and reminding monitoring personnel.
The monitoring system for the direct-current ice melting operation of the power transmission line, provided by the embodiment of the application, is suitable for the direct-current ice melting operation of ultrahigh-voltage and extra-high-voltage power transmission lines such as 500kV, +/-800 kV, 1000kV, +/-1100 kV and the like, guarantees the safety of live working, and is also suitable for the power transmission line under the condition of power failure.
Since the above embodiments are all described by referring to and combining with other embodiments, the same portions are provided between different embodiments, and the same and similar portions between the various embodiments in this specification may be referred to each other. And will not be described in detail herein.
It is noted that, in this specification, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a circuit structure, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such circuit structure, article, or apparatus. Without further limitation, the presence of an element identified by the phrase "comprising an … …" does not exclude the presence of other like elements in a circuit structure, article or device comprising the element.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
The above-described embodiments of the present application do not limit the scope of the present application.
Claims (9)
1. A monitoring method for direct-current ice melting operation of a power transmission line is characterized by comprising the following steps:
measuring the thickness of ice on the power transmission line;
starting a direct-current ice melting device to melt ice on the power transmission line according to the condition that the icing thickness is larger than a first threshold value;
judging whether an insulator on the power transmission line generates an arc in real time;
if the insulator on the power transmission line is in an arc state, controlling the ice melting device to stop melting ice;
if the insulator on the power transmission line does not generate electric arcs, acquiring the number of discharge photons on the surface of the insulator on the power transmission line;
calculating the area of light spots on the surface of the insulator according to the number of the discharge photons;
judging whether the number of the discharge photons is greater than a second threshold value or not and whether the area of the light spot is greater than a third threshold value or not;
and if the number of the discharge photons is greater than a second threshold value and the area of the light spot is greater than a third threshold value, controlling the ice melting device to stop melting ice, wherein the second threshold value comprises 8000, and the third threshold value comprises one fourth of the surface area of the insulator close to the wire side.
2. The monitoring method for direct-current ice melting operation of the transmission line according to claim 1, wherein judging whether an insulator on the transmission line is in an arc state comprises:
shooting a visible light image of an insulator on the power transmission line by a visible light and ultraviolet light integrated camera;
and carrying out image detection on the visible light image, and judging whether the insulator on the power transmission line has an arc or not.
3. The monitoring method for direct-current ice melting operation of the power transmission line according to claim 1, wherein the obtaining of the number of discharge photons on the surface of the insulator on the power transmission line comprises: and shooting an ultraviolet image of the insulator on the power transmission line by a visible light and ultraviolet light integrated camera, and obtaining the number of discharge photons according to the ultraviolet image.
4. A monitoring system for DC ice melting operation of a power transmission line is characterized by comprising a monitoring center, a mobile terminal and a monitoring device for DC ice melting operation of the power transmission line, wherein,
a monitoring device for direct current ice melting operation of a power transmission line comprises a visible light and ultraviolet light integrated camera, a communication module and a power supply module, wherein,
the visible light and ultraviolet light integrated camera comprises an ultraviolet light shooting module, a visible light shooting module and a processor module, wherein the shooting direction of the ultraviolet light shooting module is parallel to and the same as that of the visible light shooting module, the ultraviolet light shooting module and the visible light shooting module are respectively used for shooting insulators on the power transmission line, the processor module is respectively electrically connected with the ultraviolet light shooting module and the visible light shooting module, and the processor module is used for calculating the number of discharge photons according to an ultraviolet image shot by the ultraviolet light shooting module;
the communication module and the power supply module are both arranged on the visible light and ultraviolet light integrated camera, the processor module is electrically connected with the communication module, the power supply module is respectively electrically connected with the visible light and ultraviolet light integrated camera and the communication module, and the processor module is used for sending the number of the discharge photons to the communication module;
the communication module of the monitoring device for the direct-current ice melting operation of the power transmission line is respectively in communication connection with the monitoring center and the mobile terminal, and the monitoring center is in communication connection with the mobile terminal;
the monitoring center is used for calculating the spot area of the surface of the insulator according to the number of the discharge photons, controlling the ice melting device to stop melting ice according to the fact that an electric arc appears in a visible light image, or whether the number of the discharge photons is larger than a second threshold value and according to the fact that the spot area is larger than a third threshold value, and sending an early warning signal to the mobile terminal, wherein the second threshold value comprises 8000, and the third threshold value comprises one fourth of the surface area of the insulator close to the wire side;
the mobile terminal is used for carrying out early warning according to the early warning signal.
5. The monitoring system for dc ice melting operation of transmission line according to claim 4, wherein said communication module comprises a SIM card module.
6. The monitoring system for direct-current ice melting operation of the power transmission line according to claim 4, further comprising an unmanned aerial vehicle hanging ring, wherein the unmanned aerial vehicle hanging ring is arranged at one end of the visible light and ultraviolet light integrated camera opposite to the shooting direction of the ultraviolet light shooting module, and the unmanned aerial vehicle hanging ring is matched with a hook arranged on an unmanned aerial vehicle.
7. The monitoring system for direct-current ice melting operation of the power transmission line according to claim 4, wherein the visible light and ultraviolet light integrated camera further comprises a near-infrared and visible light fusion defogging module, the near-infrared and visible light fusion defogging module is electrically connected with the processor module, and the near-infrared and visible light fusion defogging module is used for shooting a defogged visible light image and sending the defogged visible light image to the processor.
8. The monitoring system for DC deicing operation of power transmission line according to claim 4, wherein the outer sides of the cameras of the ultraviolet light shooting module and the visible light shooting module are respectively provided with a rainproof cover and an electric wiper, the electric wiper is electrically connected with the processor, and the outer side of the camera of the visible light shooting module is provided with an antifogging layer.
9. The monitoring system for direct-current ice melting operation of the power transmission line according to claim 4, further comprising an unmanned aerial vehicle, wherein the unmanned aerial vehicle is in communication connection with the monitoring center, and a hook matched with a hanging ring arranged on the visible light and ultraviolet light integrated camera is arranged on the unmanned aerial vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010007040.4A CN111162480B (en) | 2020-01-03 | 2020-01-03 | Monitoring method, device and system for direct-current ice melting operation of power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010007040.4A CN111162480B (en) | 2020-01-03 | 2020-01-03 | Monitoring method, device and system for direct-current ice melting operation of power transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111162480A CN111162480A (en) | 2020-05-15 |
| CN111162480B true CN111162480B (en) | 2021-04-30 |
Family
ID=70561225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010007040.4A Active CN111162480B (en) | 2020-01-03 | 2020-01-03 | Monitoring method, device and system for direct-current ice melting operation of power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111162480B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463714B (en) * | 2020-05-29 | 2021-01-12 | 西南交通大学 | Data acquisition and monitoring method and system for power transmission cable anti-icing and deicing robot |
| CN112684751A (en) * | 2020-12-11 | 2021-04-20 | 国网湖南省电力有限公司 | Intelligent remote transmission monitoring system and component for ice melting state |
| CN116540041B (en) * | 2023-06-30 | 2023-09-15 | 国网安徽省电力有限公司电力科学研究院 | Method for detecting surface discharge fault of high-voltage sleeve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201740543U (en) * | 2010-03-10 | 2011-02-09 | 北京航空航天大学 | Ice melting test environment simulation device for long insulator string |
| JP4849592B2 (en) * | 2004-05-27 | 2012-01-11 | 財団法人電力中央研究所 | Apparatus and method for estimating leakage current generated in insulator |
| CN103149512A (en) * | 2013-02-25 | 2013-06-12 | 国网电力科学研究院武汉南瑞有限责任公司 | Insulation state assessment method of insulator based on ultraviolet imaging feature |
| CN105721789A (en) * | 2014-12-01 | 2016-06-29 | 中国航空工业集团公司第六三一研究所 | Low-latency omni-directional navigation video multi-mode display control method |
| CN106159859A (en) * | 2015-04-20 | 2016-11-23 | 中国电力科学研究院 | A kind of OPGW ice melting system |
| CN206323498U (en) * | 2016-12-27 | 2017-07-11 | 山东神戎电子股份有限公司 | A kind of Penetrating Fog monitoring device round the clock |
| CN110389284A (en) * | 2019-08-12 | 2019-10-29 | 平顶山学院 | The detection system and detection method discharged with equipment fault on net post |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201549283U (en) * | 2009-12-03 | 2010-08-11 | 湖北省电力公司襄樊供电公司 | Ice-melting composite insulator |
| CN101799515B (en) * | 2010-03-10 | 2012-05-23 | 北京航空航天大学 | Large multifunctional environmental simulator for electrical test |
-
2020
- 2020-01-03 CN CN202010007040.4A patent/CN111162480B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4849592B2 (en) * | 2004-05-27 | 2012-01-11 | 財団法人電力中央研究所 | Apparatus and method for estimating leakage current generated in insulator |
| CN201740543U (en) * | 2010-03-10 | 2011-02-09 | 北京航空航天大学 | Ice melting test environment simulation device for long insulator string |
| CN103149512A (en) * | 2013-02-25 | 2013-06-12 | 国网电力科学研究院武汉南瑞有限责任公司 | Insulation state assessment method of insulator based on ultraviolet imaging feature |
| CN105721789A (en) * | 2014-12-01 | 2016-06-29 | 中国航空工业集团公司第六三一研究所 | Low-latency omni-directional navigation video multi-mode display control method |
| CN106159859A (en) * | 2015-04-20 | 2016-11-23 | 中国电力科学研究院 | A kind of OPGW ice melting system |
| CN206323498U (en) * | 2016-12-27 | 2017-07-11 | 山东神戎电子股份有限公司 | A kind of Penetrating Fog monitoring device round the clock |
| CN110389284A (en) * | 2019-08-12 | 2019-10-29 | 平顶山学院 | The detection system and detection method discharged with equipment fault on net post |
Non-Patent Citations (2)
| Title |
|---|
| 基于紫外成像技术的110kV输电线路复合绝缘子融冰闪络预警方法及判据;文华等;《高电压技术》;20121031;第38卷(第10期);第2589-2594页 * |
| 基于紫外成像技术的瓷绝缘子串放电程度量化评估;贾志东等;《高电压技术》;20170531;第43卷(第5期);第1467-1475页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111162480A (en) | 2020-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111162480B (en) | Monitoring method, device and system for direct-current ice melting operation of power transmission line | |
| CN105676070A (en) | Fault monitoring system for power transmission line | |
| CN103499774A (en) | Electricity transmission insulator arc-over on-line monitoring and safety early-warning device | |
| CN103728924A (en) | Remote monitoring system for icing of power transmission line | |
| KR101570511B1 (en) | Device for prohibit road freezing using solar ray generator | |
| Zhu et al. | Review on flashover risk prediction method of iced insulator based on icing monitoring technology | |
| Wachal et al. | A computer vision early-warning ice detection system for the Smart Grid | |
| CN103278725A (en) | Method for positioning grounding fault during melting of aerial earth wire | |
| CN105758526A (en) | Unmanned plane device with function of giving alarm against overheating of high-voltage equipment, and application method | |
| CN211014974U (en) | Icing diagnostic device for overhead transmission line | |
| CN105551179A (en) | Remote video monitoring and early-warning system of high-tension power transmission line | |
| CN108036731A (en) | Removing ice from cable monitoring method and system | |
| CN113990032A (en) | Power transmission line icing snow monitoring and early warning system and unmanned processing system | |
| CN218297034U (en) | Power transmission line icing on-line monitoring device | |
| CN110376830B (en) | Overhead transmission line icing diagnosis method and diagnosis device thereof | |
| CN111141327A (en) | Anti-icing type on-line monitoring system | |
| CN216144324U (en) | Icing on-line monitoring device | |
| CN202678899U (en) | Relay station antenna feeder automatic ice-melting device | |
| CN212433924U (en) | Transmission line icing detection device | |
| CN210833874U (en) | Dynamic load thermal infrared temperature measurement system of substation | |
| CN211979229U (en) | Icing monitoring device installed on overhead transmission line | |
| CN210608693U (en) | Micro-power consumption distribution line intelligent monitoring system | |
| CN111007905A (en) | Icing detection camera anti-fogging and icing device | |
| Zhao et al. | Icing monitoring system of transmission lines based on image and stress | |
| JP2008177062A (en) | Salt damage monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |