CN112036710A - Method, system, storage medium and equipment for evaluating composite state of high-voltage cable - Google Patents
Method, system, storage medium and equipment for evaluating composite state of high-voltage cable Download PDFInfo
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Abstract
The invention relates to a method, a system, a storage medium and equipment for evaluating the composite state of a high-voltage cable, wherein the method comprises the steps of acquiring historical data information of the cable to be evaluated, mining risk factors and characterization characteristics, generating effective characteristic information and constructing state core characterization characteristic information; and establishing a cable composite state evaluation model, carrying out composite state evaluation on the cable to be evaluated, and finally determining a cable evaluation result. According to the method, the risk factors and the characterization characteristics of historical data information are mined, the state core characterization characteristic information is constructed, and then the composite state evaluation is performed to obtain the cable evaluation result, so that the accurate evaluation of the cable state is realized, data comparison and diagnosis basis can be provided for the live detection and on-line monitoring result analysis of the high-voltage cable line, and the method is beneficial to comprehensively improving the detection and evaluation level of the cable line state, supporting the detection work of the on-site state and guaranteeing the safe, stable and reliable operation of the high-voltage cable line.
Description
Technical Field
The invention relates to the technical field of high-voltage cable fault online detection and identification, in particular to a method, a system, a storage medium and equipment for evaluating a composite state of a high-voltage cable.
Background
The high-voltage cable line has the advantages of wide laying path distribution, complex operating conditions, easy damage and destruction by external force, uneven accessory installation quality and large inspection and maintenance workload. With the continuous expansion of the scale of cables,
the difficulty of operation and maintenance management of the cable line is gradually increased, and in addition, in recent years, the power cable line has frequent faults, and the safe operation of a power grid faces a severe challenge. In the face of the increasingly prominent cable line operation and maintenance problems, national power grid companies are actively promoting state maintenance work of power transmission and transformation equipment, strengthening detection and analysis of the operation state of a power grid, timely finding and eliminating hidden dangers and defects of the equipment, and providing higher requirements for state quantity detection, monitoring and comprehensive diagnosis and evaluation of the cable equipment.
In order to accurately grasp the running condition of the high-voltage cable line, higher requirements are put forward on the state evaluation and analysis of the high-voltage cable. At present, the system state evaluation mainly has the following difficulties: (1) the number of fault cases is small, and the number of monitoring data related to faults is small; (2) a unified management platform is lacked in monitoring data, ledger data and detection data; (3) lack of a state evaluation composite feature parameter set; (4) the single evaluation model is difficult to deal with the characteristics of the multi-stage development of the cable.
Disclosure of Invention
The present invention provides a method, a system, a storage medium and a device for evaluating a composite state of a high voltage cable, aiming at the deficiencies of the prior art.
The technical scheme for solving the technical problems is as follows: a composite state evaluation method for a high-voltage cable comprises the following steps:
acquiring historical data information of a cable to be evaluated, mining risk factors and characterization features of the historical data information according to a rough set theory to generate effective feature information, and constructing state core characterization feature information;
and establishing a cable composite state evaluation model, carrying out composite state evaluation on the cable to be evaluated to obtain a cable composite state evaluation result, and determining a cable evaluation result according to the cable composite state evaluation result.
The invention has the beneficial effects that: according to the method for evaluating the composite state of the high-voltage cable, the risk factors and the characterization characteristics of historical data information are mined to generate effective characteristic information, state core characterization characteristic information is constructed, composite state evaluation is performed by the cable composite state evaluation model to obtain a cable composite state evaluation result, and then a cable evaluation result is determined, so that the accurate evaluation of the cable state is realized, data comparison and diagnosis basis can be provided for live detection and on-line monitoring result analysis of the high-voltage cable line, and the method is beneficial to comprehensively improving the detection and evaluation level of the cable line state, supporting the detection work of the on-site state and guaranteeing the safe, stable and reliable operation of the high-voltage cable line.
On the basis of the technical scheme, the invention can be further improved as follows:
further: the acquiring of the historical data information of the cable to be evaluated comprises the following steps: inquiring historical data information of cable faults, cable standing account information, cable partial discharge industrial field data information and severe circuit detection data information;
the state core characterization feature information comprises: partial discharge characteristic information, dielectric loss characteristic information, sheath circulating current characteristic information and temperature characteristic information.
The beneficial effects of the further scheme are as follows: by acquiring the cable fault historical data information, the cable standing book information, the cable partial discharge industrial field data information and the severe line detection data information, the dangerous factors and the characteristic features of the historical data information can be mined by combining a rough set theory, and effective feature information can be accurately extracted so as to complete the construction of state core characteristic feature information.
Further: the method for establishing the cable composite state evaluation model and carrying out composite state evaluation on the cable to be evaluated specifically comprises the following steps:
establishing a cable composite state evaluation model, and determining evaluation parameters according to the partial discharge characteristic information, the dielectric loss characteristic information, the sheath circulating current characteristic information and the temperature characteristic information;
evaluating the partial discharge characteristic information, the sheath circulating current characteristic information, the dielectric loss characteristic information and the temperature characteristic information respectively according to preset corresponding evaluation standards, and determining cable aging type information, cable sheath characteristic information, cable dielectric loss type information and cable temperature characteristic information respectively;
determining a cable evaluation score according to the cable aging type information, the cable sheath characteristic information, the cable dielectric loss type information, the cable temperature characteristic information and corresponding preset weights;
comparing the cable evaluation score with a preset evaluation comparison table to generate a cable composite state evaluation result;
and inputting the cable composite state evaluation result into the cable composite state evaluation model to obtain a cable evaluation result.
The beneficial effects of the further scheme are as follows: the partial discharge characteristic information, the dielectric loss characteristic information, the sheath circulation characteristic information, the temperature characteristic information and the corresponding evaluation standards can be used for conveniently and correspondingly determining the cable aging type information, the cable sheath characteristic information, the cable dielectric loss type information and the cable temperature characteristic information respectively, so that the pre-assigned weight default cable evaluation score can be combined, the cable composite state evaluation result can be conveniently obtained, and the cable evaluation result can be further determined.
Further: the step of comparing the cable evaluation score with a preset evaluation comparison table to generate a cable composite state evaluation result specifically comprises the following steps:
comparing the cable assessment score to a preset minimum assessment score threshold;
if the cable evaluation score is lower than the preset lowest evaluation score threshold, determining that the cable composite state evaluation result is serious, and generating immediate maintenance prompt information;
otherwise, respectively determining the weight vectors of the cable aging type information, the cable sheath characteristic information, the cable dielectric loss type information and the cable temperature characteristic information, and carrying out comprehensive state evaluation to obtain a cable composite state evaluation result.
The beneficial effects of the further scheme are as follows: by comparing the cable evaluation score with a preset minimum evaluation score threshold value, whether the cable meets the minimum evaluation requirement or not can be determined, the composite state evaluation result of the cable is determined to be serious when the cable does not meet the low evaluation requirement, inspection personnel is prompted to overhaul in time, and comprehensive state evaluation is further performed when the low evaluation requirement is met, so that the composite state evaluation result of the cable is accurately obtained.
Further: the method for respectively determining the weight vectors of the cable aging type information, the cable sheath characteristic information, the cable dielectric loss type information and the cable temperature characteristic information and carrying out comprehensive state evaluation specifically comprises the following steps:
establishing a state evaluation index quantity system according to the partial discharge characteristic information, the sheath circulating current characteristic information, the dielectric loss characteristic information and the temperature characteristic information;
constructing a judgment matrix by using a 1-9 scaling method, and determining the weight grade of each parameter in a target layer, a standard layer and a scheme layer in the state evaluation index system according to the judgment matrix;
calculating single sorting weight vectors and performing consistency check according to the weight grades of all parameters in a target layer, a criterion layer and a scheme layer in the state evaluation index system, and calculating total sorting weight vectors and performing consistency check to obtain the weight vectors of all parameters in the target layer, the criterion layer and the scheme layer in the state evaluation index system;
and carrying out comprehensive state evaluation according to the cable evaluation score and the weight vectors of all parameters in a target layer, a criterion layer and a scheme layer in the state evaluation index system to obtain a cable composite state evaluation result.
The beneficial effects of the further scheme are as follows: by establishing a state evaluation index system and determining the weight grades of all parameters in the target layer, the criterion layer and the scheme layer, the cable composite state evaluation result can be accurately obtained through comprehensive state evaluation according to the weight grades of all parameters in the target layer, the criterion layer and the scheme layer.
Further: the method for acquiring the cable evaluation result specifically comprises the following steps:
and sequentially inputting the cable composite state evaluation result into a plurality of phase submodels of the cable composite state evaluation model, comparing the cable composite state evaluation result with a threshold value of the corresponding phase submodel, and determining the cable evaluation result according to the comparison result.
The beneficial effects of the further scheme are as follows: the cable composite state evaluation result is compared with the threshold value of the corresponding phase submodel in sequence through the plurality of phase submodels in the cable composite state evaluation model, so that the cable evaluation results of different cables can be determined in stages, and the evaluation result is more accurate.
Further: the method further comprises the steps of:
and dynamically feeding back and adjusting evaluation parameters in the cable composite state evaluation model according to the cable composite state evaluation result and the core characterization characteristic information.
The beneficial effects of the further scheme are as follows: by feeding back the cable composite state evaluation result and the core characterization feature information to the cable composite state evaluation model, evaluation parameters in the cable composite state evaluation model can be dynamically adjusted, so that the evaluation result is more accurate.
The invention relates to a high-voltage cable composite state evaluation system which comprises a characteristic mining construction module and a composite state evaluation module;
the characteristic mining construction module is used for acquiring historical data information of a cable to be evaluated, mining danger factors and characterization characteristics of the historical data information according to a rough set theory to generate effective characteristic information, and constructing state core characterization characteristic information;
the composite state evaluation module is used for establishing a cable composite state evaluation model, carrying out composite state evaluation on a cable to be evaluated to obtain a cable composite state evaluation result, and determining a cable evaluation result according to the cable composite state evaluation result.
According to the high-voltage cable composite state evaluation system, the risk factors and the characterization characteristics of historical data information are mined to generate effective characteristic information, state core characterization characteristic information is constructed, composite state evaluation is performed by the cable composite state evaluation model to obtain a cable composite state evaluation result, and then a cable evaluation result is determined, so that accurate evaluation of the cable state is realized, data comparison and diagnosis basis can be provided for live detection and on-line monitoring result analysis of a high-voltage cable line, and the high-voltage cable composite state evaluation system is beneficial to comprehensively improving the detection and evaluation level of the cable line state, supporting field state detection work and guaranteeing safe, stable and reliable operation of the high-voltage cable line.
The invention also provides a computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method.
The invention also provides a device for evaluating the composite state of the high-voltage cable, which comprises the storage medium and a processor, wherein the processor realizes the steps of the method when executing the computer program on the storage medium.
Drawings
Fig. 1 is a schematic flow chart of a method for evaluating a composite state of a high-voltage cable according to an embodiment of the present invention;
fig. 2 is a block diagram of a composite state evaluation system of a high-voltage cable according to an embodiment of the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, a method for evaluating the composite state of a high-voltage cable includes the following steps:
step 11: acquiring historical data information of a cable to be evaluated, mining risk factors and characterization features of the historical data information according to a rough set theory to generate effective feature information, and constructing state core characterization feature information;
step 12: and establishing a cable composite state evaluation model, carrying out composite state evaluation on the cable to be evaluated to obtain a cable composite state evaluation result, and determining a cable evaluation result according to the cable composite state evaluation result.
According to the method for evaluating the composite state of the high-voltage cable, the risk factors and the characterization characteristics of historical data information are mined to generate effective characteristic information, state core characterization characteristic information is constructed, composite state evaluation is performed by the cable composite state evaluation model to obtain a cable composite state evaluation result, and then a cable evaluation result is determined, so that the accurate evaluation of the cable state is realized, data comparison and diagnosis basis can be provided for live detection and on-line monitoring result analysis of the high-voltage cable line, and the method is beneficial to comprehensively improving the detection and evaluation level of the cable line state, supporting the detection work of the on-site state and guaranteeing the safe, stable and reliable operation of the high-voltage cable line.
In one or more embodiments of the present invention, the acquiring historical data information of the cable to be evaluated includes: inquiring historical data information of cable faults, cable standing account information, cable partial discharge industrial field data information and severe circuit detection data information;
the state core characterization feature information comprises: partial discharge characteristic information, dielectric loss characteristic information, sheath circulating current characteristic information and temperature characteristic information.
By acquiring the cable fault historical data information, the cable standing book information, the cable partial discharge industrial field data information and the severe line detection data information, the dangerous factors and the characteristic features of the historical data information can be mined by combining a rough set theory, and effective feature information can be accurately extracted so as to complete the construction of state core characteristic feature information.
In one or more embodiments of the present invention, the establishing a cable composite state evaluation model, and performing composite state evaluation on a cable to be evaluated specifically includes the following steps:
step 21, establishing a cable composite state evaluation model, and determining evaluation parameters according to the partial discharge characteristic information, the dielectric loss characteristic information, the sheath circulation characteristic information and the temperature characteristic information;
step 22, evaluating the partial discharge characteristic information, the sheath circulating current characteristic information, the dielectric loss characteristic information and the temperature characteristic information respectively according to preset corresponding evaluation standards, and determining cable aging type information, cable sheath characteristic information, cable dielectric loss type information and cable temperature characteristic information respectively;
specifically, the partial discharge characteristic information is evaluated according to the partial discharge parameter evaluation standard DL/T1575-2016, and cable aging type information is determined, such as at least three types including non-aging, light aging and severe aging; evaluating the sheath circulation characteristic information according to the sheath circulation parameter evaluation standard Q/GDW 11223-2014, and determining the cable sheath characteristic information, such as at least three types including normal, attention and defect; evaluating the dielectric loss characteristic information according to dielectric loss parameter evaluation standard GB/T2951.9-1997, and determining cable dielectric loss type information, such as at least three types including good type, warning type and serious type; and evaluating the temperature characteristic information according to the temperature parameter evaluation standards IEC 60287 and Q/GDW 456-2010, and determining the cable temperature characteristic information, such as at least four types including normal, attention, abnormity and severity.
Step 23, performing linear superposition according to the cable aging type information, the cable sheath characteristic information, the cable dielectric loss type information, the cable temperature characteristic information and the corresponding preset weight to determine a cable evaluation score;
step 24, comparing the cable evaluation score with a preset evaluation comparison table to generate a cable composite state evaluation result;
and 25, inputting the cable composite state evaluation result into the cable composite state evaluation model to obtain a cable evaluation result.
The partial discharge characteristic information, the dielectric loss characteristic information, the sheath circulation characteristic information, the temperature characteristic information and the corresponding evaluation standards can be used for conveniently and correspondingly determining the cable aging type information, the cable sheath characteristic information, the cable dielectric loss type information and the cable temperature characteristic information respectively, so that the pre-assigned weight default cable evaluation score can be combined, the cable composite state evaluation result can be conveniently obtained, and the cable evaluation result can be further determined.
In one or more embodiments of the present invention, the comparing the cable evaluation score with a preset evaluation comparison table to generate a cable composite state evaluation result specifically includes the following steps:
comparing the cable assessment score to a preset minimum assessment score threshold;
if the cable evaluation score is lower than the preset lowest evaluation score threshold, determining that the cable composite state evaluation result is serious, and generating immediate maintenance prompt information;
otherwise, respectively determining the weight vectors of the cable aging type information, the cable sheath characteristic information, the cable dielectric loss type information and the cable temperature characteristic information, and carrying out comprehensive state evaluation to obtain a cable composite state evaluation result.
By comparing the cable evaluation score with a preset minimum evaluation score threshold value, whether the cable meets the minimum evaluation requirement or not can be determined, the composite state evaluation result of the cable is determined to be serious when the cable does not meet the low evaluation requirement, inspection personnel is prompted to overhaul in time, and comprehensive state evaluation is further performed when the low evaluation requirement is met, so that the composite state evaluation result of the cable is accurately obtained.
In one or more embodiments of the present invention, the determining the weight vectors of the cable aging type information, the cable sheath characteristic information, the cable dielectric loss type information, and the cable temperature characteristic information, respectively, and performing the comprehensive state evaluation specifically includes the following steps:
step 31: establishing a state evaluation index quantity system according to the partial discharge characteristic information, the sheath circulating current characteristic information, the dielectric loss characteristic information and the temperature characteristic information;
step 32: constructing a judgment matrix by using a 1-9 scaling method, and determining the weight grade of each parameter in a target layer, a standard layer and a scheme layer in the state evaluation index system according to the judgment matrix;
step 33: calculating single sorting weight vectors and performing consistency check according to the weight grades of all parameters in a target layer, a criterion layer and a scheme layer in the state evaluation index system, and calculating total sorting weight vectors and performing consistency check to obtain the weight vectors of all parameters in the target layer, the criterion layer and the scheme layer in the state evaluation index system;
step 34: and carrying out comprehensive state evaluation according to the cable evaluation score and the weight vectors of all parameters in a target layer, a criterion layer and a scheme layer in the state evaluation index system to obtain a cable composite state evaluation result.
By establishing a state evaluation index system and determining the weight grades of all parameters in the target layer, the criterion layer and the scheme layer, the cable composite state evaluation result can be accurately obtained through comprehensive state evaluation according to the weight grades of all parameters in the target layer, the criterion layer and the scheme layer.
In one or more embodiments of the present invention, the acquiring the cable evaluation result specifically includes the following steps:
step 41: and sequentially inputting the cable composite state evaluation result into a plurality of phase submodels of the cable composite state evaluation model, comparing the cable composite state evaluation result with a threshold value of the corresponding phase submodel, and determining the cable evaluation result according to the comparison result.
Step 42: the cable composite state evaluation result is compared with the threshold value of the corresponding phase submodel in sequence through the plurality of phase submodels in the cable composite state evaluation model, so that the cable evaluation results of different cables can be determined in stages, and the evaluation result is more accurate.
In the embodiment of the invention, the cable composite state evaluation model comprises three stage submodels, and each stage model is respectively provided with a threshold value;
firstly, inputting all cable composite state evaluation results into a first-stage sub-model, wherein cables with evaluation results lower than a threshold value corresponding to the first-stage sub-model are cables needing attention;
secondly, inputting the cable composite state evaluation result of the cable needing attention into a second-stage submodel, wherein the cable with the evaluation result lower than a threshold value corresponding to the second-stage submodel is the cable needing important attention;
and finally, inputting the cable data which needs to be focused into the third-stage submodel, wherein the cable with the evaluation result lower than the threshold value corresponding to the third-stage submodel is the severe cable, so that all cable evaluation results are finally obtained.
Optionally, in one or more embodiments of the present invention, the method further includes the steps of:
and dynamically feeding back and adjusting evaluation parameters in the cable composite state evaluation model according to the cable composite state evaluation result and the core characterization characteristic information.
By feeding back the cable composite state evaluation result and the core characterization feature information to the cable composite state evaluation model, evaluation parameters in the cable composite state evaluation model can be dynamically adjusted, so that the evaluation result is more accurate.
As shown in fig. 2, the composite state evaluation system for the high-voltage cable of the invention comprises a feature mining construction module and a composite state evaluation module;
the characteristic mining construction module is used for acquiring historical data information of a cable to be evaluated, mining danger factors and characterization characteristics of the historical data information according to a rough set theory to generate effective characteristic information, and constructing state core characterization characteristic information;
the composite state evaluation module is used for establishing a cable composite state evaluation model, carrying out composite state evaluation on a cable to be evaluated to obtain a cable composite state evaluation result, and determining a cable evaluation result according to the cable composite state evaluation result.
According to the high-voltage cable composite state evaluation system, the risk factors and the characterization characteristics of historical data information are mined to generate effective characteristic information, state core characterization characteristic information is constructed, composite state evaluation is performed by the cable composite state evaluation model to obtain a cable composite state evaluation result, and then a cable evaluation result is determined, so that accurate evaluation of the cable state is realized, data comparison and diagnosis basis can be provided for live detection and on-line monitoring result analysis of a high-voltage cable line, and the high-voltage cable composite state evaluation system is beneficial to comprehensively improving the detection and evaluation level of the cable line state, supporting field state detection work and guaranteeing safe, stable and reliable operation of the high-voltage cable line.
The invention also provides a computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method.
The invention also provides a device for evaluating the composite state of the high-voltage cable, which comprises the storage medium and a processor, wherein the processor realizes the steps of the method when executing the computer program on the storage medium.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A method for evaluating the composite state of a high-voltage cable is characterized by comprising the following steps:
acquiring historical data information of a cable to be evaluated, mining risk factors and characterization features of the historical data information according to a rough set theory to generate effective feature information, and constructing state core characterization feature information;
and establishing a cable composite state evaluation model, carrying out composite state evaluation on the cable to be evaluated to obtain a cable composite state evaluation result, and determining a cable evaluation result according to the cable composite state evaluation result.
2. The method for evaluating the composite state of the high-voltage cable according to claim 1, wherein the acquiring historical data information of the cable to be evaluated comprises: inquiring historical data information of cable faults, cable standing account information, cable partial discharge industrial field data information and severe circuit detection data information;
the state core characterization feature information comprises: partial discharge characteristic information, dielectric loss characteristic information, sheath circulating current characteristic information and temperature characteristic information.
3. The method for evaluating the composite state of the high-voltage cable according to claim 2, wherein the establishing of the cable composite state evaluation model and the evaluation of the composite state of the cable to be evaluated specifically comprise the following steps:
establishing a cable composite state evaluation model, and determining evaluation parameters according to the partial discharge characteristic information, the dielectric loss characteristic information, the sheath circulating current characteristic information and the temperature characteristic information;
evaluating the partial discharge characteristic information, the sheath circulating current characteristic information, the dielectric loss characteristic information and the temperature characteristic information respectively according to preset corresponding evaluation standards, and determining cable aging type information, cable sheath characteristic information, cable dielectric loss type information and cable temperature characteristic information respectively;
determining a cable evaluation score according to the cable aging type information, the cable sheath characteristic information, the cable dielectric loss type information, the cable temperature characteristic information and corresponding preset weights;
comparing the cable evaluation score with a preset evaluation comparison table to generate a cable composite state evaluation result;
and inputting the cable composite state evaluation result into the cable composite state evaluation model to obtain a cable evaluation result.
4. The method for evaluating the composite state of the high-voltage cable according to claim 3, wherein the step of comparing the cable evaluation score with a preset evaluation comparison table to generate the cable composite state evaluation result specifically comprises the following steps:
comparing the cable assessment score to a preset minimum assessment score threshold;
if the cable evaluation score is lower than the preset lowest evaluation score threshold, determining that the cable composite state evaluation result is serious, and generating immediate maintenance prompt information;
otherwise, respectively determining the weight vectors of the cable aging type information, the cable sheath characteristic information, the cable dielectric loss type information and the cable temperature characteristic information, and carrying out comprehensive state evaluation to obtain a cable composite state evaluation result.
5. The method for evaluating the composite state of the high-voltage cable according to claim 4, wherein the steps of respectively determining the weight vectors of the cable aging type information, the cable sheath characteristic information, the cable dielectric loss type information and the cable temperature characteristic information and performing comprehensive state evaluation specifically comprise the following steps:
establishing a state evaluation index quantity system according to the partial discharge characteristic information, the sheath circulating current characteristic information, the dielectric loss characteristic information and the temperature characteristic information;
constructing a judgment matrix by using a 1-9 scaling method, and determining the weight grade of each parameter in a target layer, a standard layer and a scheme layer in the state evaluation index system according to the judgment matrix;
calculating single sorting weight vectors and performing consistency check according to the weight grades of all parameters in a target layer, a criterion layer and a scheme layer in the state evaluation index system, and calculating total sorting weight vectors and performing consistency check to obtain the weight vectors of all parameters in the target layer, the criterion layer and the scheme layer in the state evaluation index system;
and carrying out comprehensive state evaluation according to the cable evaluation score and the weight vectors of all parameters in a target layer, a criterion layer and a scheme layer in the state evaluation index system to obtain a cable composite state evaluation result.
6. The method for evaluating the composite state of the high-voltage cable according to claim 3, wherein the step of obtaining the cable evaluation result specifically comprises the steps of:
and sequentially inputting the cable composite state evaluation result into a plurality of phase submodels of the cable composite state evaluation model, comparing the cable composite state evaluation result with a threshold value of the corresponding phase submodel, and determining the cable evaluation result according to the comparison result.
7. The method for evaluating the composite state of a high voltage cable according to any one of claims 1 to 6, further comprising the steps of:
and dynamically feeding back and adjusting evaluation parameters in the cable composite state evaluation model according to the cable composite state evaluation result and the core characterization characteristic information.
8. A high tension cable complex state evaluation system which characterized in that: the system comprises a characteristic mining construction module and a composite state evaluation module;
the characteristic mining construction module is used for acquiring historical data information of a cable to be evaluated, mining danger factors and characterization characteristics of the historical data information according to a rough set theory to generate effective characteristic information, and constructing state core characterization characteristic information;
the composite state evaluation module is used for establishing a cable composite state evaluation model, carrying out composite state evaluation on a cable to be evaluated to obtain a cable composite state evaluation result, and determining a cable evaluation result according to the cable composite state evaluation result.
9. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method of any one of claims 1 to 6.
10. A high voltage cable composite condition evaluation device comprising a storage medium according to claim 9 and a processor which, when executing a computer program on the storage medium, carries out the steps of the method according to any one of claims 1 to 6.
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| CN115249075A (en) * | 2022-09-22 | 2022-10-28 | 国网山西省电力公司太原供电公司 | Safe operation and maintenance management method and system for cable tunnel |
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| CA2805747A1 (en) * | 2010-07-16 | 2012-01-19 | The Trustees Of Columiba University In The City Of New York | Machine learning for a power grid |
| CN102496069A (en) * | 2011-12-07 | 2012-06-13 | 山东电力集团公司青岛供电公司 | Cable multimode safe operation evaluation method based on fuzzy analytic hierarchy process (FAHP) |
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| CN110766313A (en) * | 2019-10-18 | 2020-02-07 | 山东电工电气集团有限公司 | Cable tunnel comprehensive state evaluation method based on operation and maintenance system |
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| CN115249075A (en) * | 2022-09-22 | 2022-10-28 | 国网山西省电力公司太原供电公司 | Safe operation and maintenance management method and system for cable tunnel |
| CN115249075B (en) * | 2022-09-22 | 2022-12-06 | 国网山西省电力公司太原供电公司 | Safe operation and maintenance management method and system for cable tunnel |
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