CN110609198A - Operation and maintenance monitoring method for cable line and related equipment - Google Patents
Operation and maintenance monitoring method for cable line and related equipment Download PDFInfo
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Abstract
The application discloses an operation and maintenance monitoring method and device for a cable line, electronic equipment and a computer readable storage medium, wherein the operation and maintenance monitoring method comprises the following steps: acquiring a detection value of cable sheath circulating current; performing interphase transverse comparison on the detection values; carrying out time longitudinal comparison on the detection values; determining the state grade of the cable line according to the inter-phase transverse comparison result and the time longitudinal comparison result; and generating an operation and maintenance instruction of the cable line corresponding to the state grade. The method and the device have the advantages that the circulating current condition of the cable sheath is reasonably and effectively monitored, the state grade of the cable line is determined in a matching mode based on the comparison results of the alternate transverse comparison and the time longitudinal comparison, and then the corresponding operation and maintenance instruction is automatically generated, so that the operation and maintenance of the cable line are reasonably and correctly guided. The method and the device can effectively prevent and treat the line fault caused by overlarge circulating current of the cable sheath through reasonable monitoring, improve the efficiency of preventing and treating the fault and further ensure the safety of the cable line.
Description
Technical Field
The present disclosure relates to the field of power detection technologies, and in particular, to a method and an apparatus for monitoring operation and maintenance of a cable line, an electronic device, and a computer-readable storage medium.
Background
Cables play an important role in the transmission of electrical energy in today's society. Typically, the cable is surrounded by a sealed metal sheath to prevent moisture ingress and the like. In the process of transmitting alternating current, the cable can generate induced voltage and induced circulation on the metal sheath along with the change of a magnetic field excited by the alternating current. The metal sheath circulating current can affect the normal operation of the cable and even cause line faults. Therefore, it is very important and necessary to establish a reasonably effective operation and maintenance monitoring method for the circulation of the cable metal sheath.
Disclosure of Invention
The application aims to provide a method, a device, an electronic device and a computer readable storage medium for operation and maintenance monitoring of a cable line, so as to effectively monitor the cable sheath circulating current and reasonably prevent and treat line faults caused by overlarge cable sheath circulating current.
In order to solve the above technical problem, in a first aspect, the application discloses an operation and maintenance monitoring method for a cable line, including:
acquiring a detection value of cable sheath circulating current;
performing interphase transverse comparison on the detection values;
performing a time longitudinal comparison on the detection values;
determining the state grade of the cable line according to the inter-phase transverse comparison result and the time longitudinal comparison result;
and generating an operation and maintenance instruction of the cable line corresponding to the state grade.
Optionally, the performing an inter-phase transverse comparison on the detection values includes:
determining a first excess value of the detection value relative to a three-phase average value;
updating the status level according to the first excess value.
Optionally, the updating the status level according to the first exceeding value includes:
if the first excess value is within a range of (5%, 10% >), increasing the status level by level 1;
if the first excess value is within a range of (10%, 20% >), increasing the status level by 2 steps;
if the first out-of-range is in the range (20%, ∞), the status level is increased by 3 levels.
Optionally, the performing a time-wise comparison on the detection values includes:
determining the historical average value of the cable sheath circulating current under the condition of the same load current;
determining a second excess of the detection value relative to the historical average;
and updating the state grade according to the second exceeding value.
Optionally, the updating the status level according to the second exceeding value includes:
if the second excess value is within a range of (20%, 50% >), increasing the status level by 1 level;
if the second excess value is within a range of (50%, 80% >), increasing the status level by 2 steps;
if the second overshoot is in the range (80%, ∞), the status level is increased by 3 levels.
Optionally, the generating an operation and maintenance instruction of the cable line corresponding to the state level includes:
if the state grade is 0 grade or 1 grade, generating a first operation and maintenance instruction for keeping the current normal state;
if the state grade is 2 grade or 3 grade, generating a second operation and maintenance instruction for shortening the acquisition period of the detection value;
if the state grade is 4 grade or 5 grade, generating a third operation and maintenance instruction for warning maintenance personnel to carry out fault point diagnosis;
and if the state level is higher than 5 levels, generating a fourth operation and maintenance instruction for power failure processing.
In a second aspect, the present application further discloses an operation and maintenance monitoring device for a cable line, including:
the acquisition module is used for acquiring the detection value of the cable sheath circulating current;
the comparison module is used for carrying out interphase transverse comparison on the detection values; performing a time longitudinal comparison on the detection values;
the determining module is used for determining the state grade of the cable line according to the inter-phase transverse comparison result and the time longitudinal comparison result;
and the generating module is used for generating the operation and maintenance instruction of the cable line corresponding to the state grade.
In a third aspect, the present application also discloses an electronic device, including:
a memory for storing a computer program;
a processor for executing the computer program to implement the steps of any one of the operation and maintenance monitoring methods for cable lines as described above.
In a fourth aspect, the present application further discloses a computer-readable storage medium, in which a computer program is stored, and the computer program is used to implement the steps of any one of the methods for monitoring operation and maintenance of a cable line described above when the computer program is executed by a processor.
The operation and maintenance monitoring method for the cable line comprises the following steps: acquiring a detection value of cable sheath circulating current; performing interphase transverse comparison on the detection values; performing a time longitudinal comparison on the detection values; determining the state grade of the cable line according to the inter-phase transverse comparison result and the time longitudinal comparison result; and generating an operation and maintenance instruction of the cable line corresponding to the state grade.
Therefore, the method and the device have the advantages that the circulation condition of the cable sheath is reasonably and effectively monitored, the state grade of the cable line is matched and determined based on the comparison results of the interphase transverse comparison and the time longitudinal comparison, and then the corresponding operation and maintenance instruction is automatically generated, so that the operation and maintenance of the cable line are reasonably and correctly guided. The method and the device can effectively prevent and treat the line fault caused by overlarge circulating current of the cable sheath through reasonable monitoring, improve the efficiency of preventing and treating the fault and further ensure the safety of the cable line. The operation and maintenance monitoring device, the electronic equipment and the computer readable storage medium for the cable line have the advantages.
Drawings
In order to more clearly illustrate the technical solutions in the prior art and the embodiments of the present application, the drawings that are needed to be used in the description of the prior art and the embodiments of the present application will be briefly described below. Of course, the following description of the drawings related to the embodiments of the present application is only a part of the embodiments of the present application, and it will be obvious to those skilled in the art that other drawings can be obtained from the provided drawings without any creative effort, and the obtained other drawings also belong to the protection scope of the present application.
Fig. 1 is a flowchart of an operation and maintenance monitoring method for a cable line according to an embodiment of the present disclosure;
fig. 2 is a block diagram of an operation and maintenance monitoring device for a cable line according to an embodiment of the present disclosure;
fig. 3 is a block diagram of an electronic device according to an embodiment of the present disclosure.
Detailed Description
The core of the application is to provide a method, a device, an electronic device and a computer readable storage medium for operation and maintenance monitoring of a cable line, so as to effectively monitor the cable sheath circulating current and reasonably prevent and treat line faults caused by overlarge cable sheath circulating current.
In order to more clearly and completely describe the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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.
Currently, cables play an important role in the transmission of electrical energy. Typically, the cable is surrounded by a sealed metal sheath to prevent moisture ingress and the like. In the process of transmitting alternating current, the cable can generate induced voltage and induced circulation on the metal sheath along with the change of a magnetic field excited by the alternating current. The metal sheath circulating current can affect the normal operation of the cable and even cause line faults. Therefore, it is very important and necessary to establish a reasonably effective operation and maintenance monitoring method for the circulation of the cable metal sheath. In view of this, the present application provides a method for monitoring operation and maintenance of a cable line, which can effectively solve the above problems.
Referring to fig. 1, an embodiment of the present application discloses an operation and maintenance monitoring method for a cable line, which mainly includes:
s11: and acquiring a detection value of the cable sheath circulating current.
In particular, the detection of the sheath circulating current may be implemented by using a relevant detection robot or an unmanned aerial vehicle, for example, detecting a temperature value at an induction coil coupled to the cable, and searching a preset database storing a corresponding relationship for a corresponding circulating current size as a current detection value of the sheath circulating current.
S12: and performing alternate transverse comparison on the detection values.
Specifically, the utility power is generally supplied by three phases, and therefore, in order to reasonably and effectively monitor and identify the cable sheath circulating current, in the operation and maintenance monitoring method for the cable line provided by the embodiment of the present application, inter-phase comparison can be specifically performed on three-phase detection values, which belong to the horizontal comparison at the same time.
S13: the detection values are compared temporally longitudinally.
Specifically, the fluctuation condition of the power grid is objective, but the large fluctuation is generally caused by the fault problem. Therefore, in order to reasonably and effectively monitor and identify the sheath circulating current, the operation and maintenance monitoring method for the cable line provided by the embodiment of the application not only performs phase-to-phase comparison on the detection value of the sheath circulating current, but also performs comparison between the current value and the historical value, and belongs to longitudinal comparison at different time points.
It should be further noted that the inter-phase transverse comparison in step 12 and the time longitudinal comparison in step 13 do not have strict order requirements, that is, the step of performing the time longitudinal comparison may be performed first, and then the step of performing the inter-phase transverse comparison may be performed, which is not limited in this application.
S14: and determining the state grade of the cable line according to the inter-phase transverse comparison result and the time longitudinal comparison result.
After the transverse comparison and the longitudinal comparison in time among the phases, a more comprehensive and correct monitoring result about the sheath circulating current can be obtained. Compared with other methods, the operation and maintenance monitoring method provided by the embodiment of the application is more reasonable and effective, and can obtain more accurate and correct monitoring results.
Specifically, the embodiment of the application uses the state grade to measure the fault state of the cable line according to the monitoring result of the sheath circulating current.
S15: and generating an operation and maintenance instruction of the cable line corresponding to the state grade.
After the state grade of the cable line is determined, a corresponding operation and maintenance instruction can be further generated according to the relevant operation and maintenance specifications so as to effectively process the fault problem existing or about to occur in the current cable line.
The operation and maintenance monitoring method for the cable line provided by the embodiment of the application comprises the following steps: acquiring a detection value of cable sheath circulating current; performing interphase transverse comparison on the detection values; carrying out time longitudinal comparison on the detection values; determining the state grade of the cable line according to the inter-phase transverse comparison result and the time longitudinal comparison result; and generating an operation and maintenance instruction of the cable line corresponding to the state grade.
Therefore, the method and the device have the advantages that the circulation condition of the cable sheath is reasonably and effectively monitored, the state grade of the cable line is matched and determined based on the comparison results of the interphase transverse comparison and the time longitudinal comparison, and then the corresponding operation and maintenance instruction is automatically generated, so that the operation and maintenance of the cable line are reasonably and correctly guided. The method and the device can effectively prevent and treat the line fault caused by overlarge circulating current of the cable sheath through reasonable monitoring, improve the efficiency of preventing and treating the fault and further ensure the safety of the cable line.
On the basis of the above content, as a specific embodiment, the inter-phase transverse comparison of the detection values in step S12 in the operation and maintenance monitoring method for a cable line provided in the embodiment of the present application may specifically include:
determining a first excess value of the detection value relative to the three-phase average value; the status level is updated based on the first exceeded value.
Further, as a specific embodiment, the updating the status level according to the first exceeding value may specifically include:
if the first excess value is within the range of (5%, 10% >), increasing the status level by level 1;
if the first excess value is within the range of (10%, 20% >), increasing the status level by level 2;
if the first overrun value is within the range of (20%, ∞), the status level is increased by 3 levels.
For example, if the first excess value is 12%, the status level is increased by 2 from the original value. In general, the initial value of the state level may be taken to be 0. It is readily understood that the status level may remain unchanged when the first excess value does not exceed 5%.
It should be noted that, in the embodiment of the present application, the larger the status grade is, the more serious the fault status representing the cable line is; the smaller the status grade, the more slight the fault status characterizing the cabling. Thus, the greater the first excess value, the greater the number of steps that are added in updating the status level. As for the values of the relevant interval nodes involved in this embodiment, a person skilled in the art may select and set the relevant interval nodes according to the actual application situation, which is not further limited in this application.
On the basis of the above content, as a specific embodiment, the time longitudinal comparison of the detection values in step S13 in the operation and maintenance monitoring method for a cable line provided in the embodiment of the present application may specifically include:
determining the historical average value of the cable sheath circulating current under the condition of the same load current; determining a second excess of the sensed value relative to the historical average; and updating the status level according to the second excess value.
Further, updating the status level according to the second exceeding value may specifically include:
if the second excess value is within the range of (20%, 50% >), increasing the status level by level 1;
if the second excess value is within the range of (50%, 80% >), increasing the status level by level 2;
if the second overshoot is within the range of (80%, ∞), the state class is increased by 3.
Similarly, the larger the second excess value, the larger the number of stages added when updating the status levels in this step. As for the values of the relevant interval nodes involved in this embodiment, a person skilled in the art may also select and set the relevant interval nodes according to the actual application situation, which is not further limited in this application.
On the basis of the foregoing, as a specific embodiment, in the operation and maintenance monitoring method for a cable line provided in the embodiment of the present application, the generating of the operation and maintenance instruction of the cable line corresponding to the state level in step S14 may specifically include:
if the state grade is 0 grade or 1 grade, generating a first operation and maintenance instruction for keeping the current normal state;
if the state grade is 2 grade or 3 grade, generating a second operation and maintenance instruction for shortening the acquisition period of the detection value;
if the state grade is 4 grade or 5 grade, generating a third operation and maintenance instruction for warning maintenance personnel to carry out fault point diagnosis;
and if the state level is higher than 5 levels, generating a fourth operation and maintenance instruction for power failure processing.
Specifically, in the embodiment of the present application, the state level of the cable line is divided into four levels: the first level, the state level is 0 level or 1 level, and can be classified as a normal operation state, and at the moment, the state is maintained without additional intervention measures; the second level, state level 2 or 3, may be the attention state, and some intervention measures may be specifically performed due to some slight problems, for example, shortening the acquisition period of sheath circulating current, i.e., the detection period. For a detection robot or an unmanned aerial vehicle which continuously moves on a cable path to perform multipoint detection, the acquisition cycle of the cable sheath circulation is also the patrol cycle of the detection robot or the unmanned aerial vehicle.
Referring to fig. 2, an embodiment of the present application discloses an operation and maintenance monitoring device for a cable line, which mainly includes:
an obtaining module 201, configured to obtain a detection value of the cable sheath circulating current;
a comparison module 202, configured to perform inter-phase transverse comparison on the detection values; carrying out time longitudinal comparison on the detection values;
the determining module 203 is used for determining the state grade of the cable line according to the inter-phase transverse comparison result and the time longitudinal comparison result;
and the generating module 204 is configured to generate an operation and maintenance instruction of the cable line corresponding to the state level.
Therefore, the method and the device have the advantages that the circulation condition of the cable sheath is reasonably and effectively monitored, the state grade of the cable line is matched and determined based on the comparison results of the interphase transverse comparison and the time longitudinal comparison, and then the corresponding operation and maintenance instruction is automatically generated, so that the operation and maintenance of the cable line are reasonably and correctly guided. The method and the device can effectively prevent and treat the line fault caused by overlarge circulating current of the cable sheath through reasonable monitoring, improve the efficiency of preventing and treating the fault and further ensure the safety of the cable line.
For the details of the operation and maintenance monitoring device for the cable line, reference may be made to the foregoing detailed description of the operation and maintenance monitoring method for the cable line, and details thereof are not repeated here.
Based on the above, in a specific embodiment, the comparing module 202 is specifically configured to:
determining a first excess value of the detection value relative to the three-phase average value; the status level is updated based on the first exceeded value.
Based on the foregoing, in a specific embodiment, the determining module 203 is specifically configured to:
if the first excess value is within the range of (5%, 10% >), increasing the status level by level 1;
if the first excess value is within the range of (10%, 20% >), increasing the status level by level 2;
if the first overrun value is within the range of (20%, ∞), the status level is increased by 3 levels.
Based on the above, in a specific embodiment, the comparing module 202 is specifically configured to:
determining the historical average value of the cable sheath circulating current under the condition of the same load current; determining a second excess of the sensed value relative to the historical average; and updating the status level according to the second excess value.
Based on the foregoing, in a specific embodiment, the determining module 203 is specifically configured to:
if the second excess value is within the range of (20%, 50% >), increasing the status level by level 1;
if the second excess value is within the range of (50%, 80% >), increasing the status level by level 2;
if the second overshoot is within the range of (80%, ∞), the state class is increased by 3.
Based on the foregoing, in a specific embodiment, the generating module 204 is specifically configured to:
if the state grade is 0 grade or 1 grade, generating a first operation and maintenance instruction for keeping the current normal state;
if the state grade is 2 grade or 3 grade, generating a second operation and maintenance instruction for shortening the acquisition period of the detection value;
if the state grade is 4 grade or 5 grade, generating a third operation and maintenance instruction for warning maintenance personnel to carry out fault point diagnosis;
and if the state level is higher than 5 levels, generating a fourth operation and maintenance instruction for power failure processing.
Referring to fig. 3, an embodiment of the present application discloses an electronic device, including:
a memory 301 for storing a computer program;
a processor 302 for executing the computer program to implement the steps of any of the operation and maintenance monitoring methods for cable lines as described above.
Further, the present application discloses a computer-readable storage medium, in which a computer program is stored, and the computer program is used for implementing the steps of any one of the methods for monitoring operation and maintenance of a cable line described above when the computer program is executed by a processor.
For the details of the electronic device and the computer-readable storage medium, reference may be made to the foregoing detailed description of the operation and maintenance monitoring method for cable lines, and details thereof are not repeated here.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the equipment disclosed by the embodiment, the description is relatively simple because the equipment corresponds to the method disclosed by the embodiment, and the relevant parts can be referred to the method part for description.
It is further noted that, throughout this document, relational terms such as "first" and "second" 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. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, 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 process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The technical solutions provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall into the protection scope of the present application.
Claims (9)
1. An operation and maintenance monitoring method for a cable line is characterized by comprising the following steps:
acquiring a detection value of cable sheath circulating current;
performing interphase transverse comparison on the detection values;
performing a time longitudinal comparison on the detection values;
determining the state grade of the cable line according to the inter-phase transverse comparison result and the time longitudinal comparison result;
and generating an operation and maintenance instruction of the cable line corresponding to the state grade.
2. The operation and maintenance monitoring method according to claim 1, wherein the performing of the inter-phase transverse comparison on the detection values comprises:
determining a first excess value of the detection value relative to a three-phase average value;
updating the status level according to the first excess value.
3. The operation and maintenance monitoring method according to claim 2, wherein the updating the status level according to the first exceeding value comprises:
if the first excess value is within a range of (5%, 10% >), increasing the status level by level 1;
if the first excess value is within a range of (10%, 20% >), increasing the status level by 2 steps;
if the first out-of-range is in the range (20%, ∞), the status level is increased by 3 levels.
4. The operation and maintenance monitoring method according to claim 3, wherein the time-longitudinal comparison of the detection values comprises:
determining the historical average value of the cable sheath circulating current under the condition of the same load current;
determining a second excess of the detection value relative to the historical average;
and updating the state grade according to the second exceeding value.
5. The operation and maintenance monitoring method according to claim 4, wherein the updating the status level according to the second exceeding value comprises:
if the second excess value is within a range of (20%, 50% >), increasing the status level by 1 level;
if the second excess value is within a range of (50%, 80% >), increasing the status level by 2 steps;
if the second overshoot is in the range (80%, ∞), the status level is increased by 3 levels.
6. The operation and maintenance monitoring method according to claim 1, wherein the generating of the operation and maintenance instruction of the cable line corresponding to the state level comprises:
if the state grade is 0 grade or 1 grade, generating a first operation and maintenance instruction for keeping the current normal state;
if the state grade is 2 grade or 3 grade, generating a second operation and maintenance instruction for shortening the acquisition period of the detection value;
if the state grade is 4 grade or 5 grade, generating a third operation and maintenance instruction for warning maintenance personnel to carry out fault point diagnosis;
and if the state level is higher than 5 levels, generating a fourth operation and maintenance instruction for power failure processing.
7. An operation and maintenance monitoring device for a cable line, comprising:
the acquisition module is used for acquiring the detection value of the cable sheath circulating current;
the comparison module is used for carrying out interphase transverse comparison on the detection values; performing a time longitudinal comparison on the detection values;
the determining module is used for determining the state grade of the cable line according to the inter-phase transverse comparison result and the time longitudinal comparison result;
and the generating module is used for generating the operation and maintenance instruction of the cable line corresponding to the state grade.
8. An electronic device, comprising:
a memory for storing a computer program;
a processor for executing said computer program for carrying out the steps of the operation and maintenance monitoring method of a cable plant according to any one of claims 1 to 6.
9. A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, is adapted to carry out the steps of the method for operation and maintenance monitoring of a cabling as claimed in any of the claims 1 to 6.
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| CN112016708A (en) * | 2020-08-11 | 2020-12-01 | 广州番禺电缆集团有限公司 | Multi-dimensional data display method and device for intelligent cable |
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