CN112767193A - Situation awareness-based distribution network production differentiation operation and maintenance strategy method - Google Patents
Situation awareness-based distribution network production differentiation operation and maintenance strategy method Download PDFInfo
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Abstract
The invention discloses a situation awareness-based distribution network production differentiation operation and maintenance strategy method, which comprises the following steps: s1, collecting production data, collecting real-time and non-real-time production data, and evaluating the quality of the data; s2, equipment risk perception, namely establishing an equipment risk evaluation perception model and carrying out equipment risk identification; s3, risk assessment of equipment, namely performing risk assessment on the equipment according to the equipment perception health degree and the influence of the equipment on the net rack; s4, establishing a strategy level and a coping strategy according to the risk assessment result; and S5, executing an operation and maintenance strategy, developing production operation and maintenance according to the risk coping strategy, and providing data and evaluation support for the steps S1-S4 through information backfilling. The method and the device can ensure the evaluation sensing integrity and result preparation of the equipment, realize the dynamic adjustment of production operation modes such as a situation sensing model, a risk coping strategy and the like, ensure the scientific and effective data evaluation, reduce the equipment failure rate and improve the power supply reliability of a power grid.
Description
Technical Field
The invention relates to the technical field of operation and maintenance methods of distribution network equipment, in particular to a situation awareness-based distribution network production differentiation operation and maintenance strategy method for real-time analysis of the operation state of power equipment.
Background
The distribution network is at the end of the whole power grid and is a window facing the society of power enterprises, the operation management of the distribution network is directly related to thousands of households, and the social responsibility and influence are huge. With the fact that power grid construction enters a new stage, the scale of power grid equipment is greatly increased, application of new equipment and new technology is accelerated, and higher requirements are provided for the construction of state control capacity of the power grid equipment. At present, the state control of the power grid in the aspects of equipment, environment and personnel still lacks an effective means, and the increasing maintenance amount cannot be met by adopting the traditional operation and maintenance mode.
The operation and maintenance of the distribution network equipment comprise: patrol, overhaul, test, acceptance check, first-aid repair and the like. In the prior art, the running state of the distribution network equipment cannot be known, and the daily patrol mode is mainly adopted. At present, a common operation and maintenance mode is to make a strategy according to state evaluation and risk evaluation, and to make full life cycle evaluation on equipment, including equipment state evaluation, equipment risk evaluation and operation and maintenance strategy making application, and some enterprises or research institutions make some improvements on equipment evaluation, but still stay in method improvement and algorithm optimization of the three applications.
The current operation and maintenance mode has the following defects:
1) the device has insufficient evaluation perception capability: neglecting the source data quality problem and the later data learning capacity, and still adopting a periodic evaluation mode;
2) the equipment evaluation result has low accuracy: the quality of source data is not checked and analyzed, and the accuracy of later evaluation is seriously influenced;
3) the device evaluation perception real-time performance is poor: current risk assessment does not utilize real-time class information and the assessment of equipment lacks timeliness.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a situation awareness-based distribution network production differentiation operation and maintenance strategy method, so that the problems of insufficient equipment evaluation and perception capability, low equipment evaluation result accuracy and poor equipment evaluation and perception real-time performance of the existing distribution network equipment operation and maintenance method are solved, the equipment evaluation and perception integrity and result readiness are ensured, the data evaluation is scientific and effective, the equipment failure rate is reduced, and the power supply reliability of a power grid is improved.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows.
A situation awareness-based distribution network production differentiation operation and maintenance strategy method comprises the following steps:
s1, collecting production data, collecting real-time and non-real-time production data, and evaluating the quality of the data;
s2, equipment risk perception, namely establishing an equipment risk evaluation perception model and carrying out equipment risk identification;
s3, risk assessment of equipment, namely performing risk assessment on the equipment according to the equipment perception health degree and the influence of the equipment on the net rack;
s4, establishing a strategy level and a coping strategy according to the risk assessment result;
and S5, executing an operation and maintenance strategy, developing production operation and maintenance according to the risk coping strategy, and providing data and evaluation support for the steps S1-S4 through information backfilling.
Further optimizing the technical solution, in the step S1, the quality evaluation of the data is performed to perform integrity and validity evaluation of the data.
Further optimizing the technical solution, the step S1 specifically includes the following steps:
s101, carrying out production real-time data acquisition, carrying out data acquisition on environmental quantity and equipment quantity through an equipment monitoring technology, carrying out real-time diagnosis and analysis on the data, generating a real-time task, and realizing real-time perception capability of equipment;
s102, carrying out production service data acquisition, including service data access, and then carrying out ledger analysis by combining equipment assets to generate a production plan task;
s103, according to the collected real-time data, carrying out real-time data evaluation and eliminating problem data;
and S104, according to the collected business data, carrying out production business data evaluation, carrying out integrity and validity verification on the business data, and perfecting the problem data.
In step S2, the unknown risk and the known risk of the device are identified by the perceptual evaluation item and the perceptual evaluation weight of the device.
Further optimizing the technical solution, the step S2 specifically includes the following steps:
s201, analyzing historical data, establishing an equipment perception model, forming a support, and accurately identifying known risks and unknown risks of equipment;
s202, establishing known risks of the equipment, establishing influence weights and diagnostic value weights according to the environment quantity of real-time data and the state quantity of the equipment, and forming equipment rapid identification and equipment abnormal rapid response to external risks and operation risks;
s203, establishing external risks and internal risks of the equipment according to the production historical data, carrying out risk identification on the equipment, and predicting the future risks of the equipment.
Further optimizing the technical solution, the step S3 specifically includes the following steps:
s301, evaluating the influence of equipment faults in the whole net rack, and dividing importance;
s302, collecting real-time data and historical working data of the power distribution equipment according to the equipment risk perception evaluation item, then quantizing indexes, and calculating a real-time health index of the equipment;
and S303, performing risk assessment on the equipment according to the risk assessment matrix by combining the health degree and the importance degree of the equipment.
Further optimizing the technical solution, the step S4 specifically includes the following steps:
s401, establishing an equipment operation and maintenance strategy level and a coping strategy according to the risk assessment result value;
s402, according to the coping strategy, the system automatically generates corresponding real-time and non-real-time task work orders, and meanwhile automatically dispatches the work orders to corresponding equipment owners;
and S403, comprehensively considering all production events to form a comprehensive strategy.
Further optimizing the technical solution, in the step S5, the information backfilling includes field policy execution information backfilling and policy adjustment information backfilling.
Further optimizing the technical solution, the step S5 specifically includes the following steps:
s501, the system automatically generates a planned work order and a temporary work order according to a strategy, develops production field work according to a scheme according to the type of the work order, backfills field data, and adjusts the field according to the non-conforming scheme by combining field working conditions;
s502, performing big data analysis on the historical data, and revising the equipment perception item and the perception item weight by utilizing cluster analysis, relevance analysis and an artificial neural network algorithm.
Further optimizing the technical solution, the step S5 further includes the following steps:
and (5) simulating the dynamic perception model generated by the neural network in the step (S502), intervening, and adjusting perception items or weight values.
Due to the adoption of the technical scheme, the technical progress of the invention is as follows.
The method is used for analyzing the running state of the power equipment in real time, and compared with the conventional mode of periodically evaluating and evaluating limited data of the equipment, the method increases the detection of the data influencing the running evaluation of the equipment, realizes the real-time data perception evaluation capability of the equipment, and can ensure the perception integrity and result preparation of the equipment evaluation.
The equipment risk coping level is linked with production operation and maintenance, work orders or reminders and the like are automatically generated, data are backfilled through field scheme execution and adjustment, and weight adjustment or perception model recombination is carried out on data influence through a neural network algorithm, so that dynamic adjustment of production operation modes such as a situation perception model and a risk coping strategy is realized, and scientific and effective data evaluation is guaranteed.
According to the method, the risk perception capability and the quick response capability of the equipment are improved, the failure rate of the equipment is reduced, and the power supply reliability of a power grid is improved.
The invention constructs a production situation perception operation and maintenance model by fusing the modern information communication technology, the equipment state detection technology and the traditional operation and maintenance service and the like in an intelligent direction, realizes the differentiated operation and maintenance of equipment, and leads the operation and maintenance management and the technical change which are suitable for the rapid development of a power grid.
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FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The invention will be described in further detail below with reference to the figures and specific examples.
A situation awareness-based distribution network production differentiation operation and maintenance strategy method is shown in a combined figure 1 and comprises the following steps:
and S1, collecting production data, collecting real-time and non-real-time production data, evaluating the quality of the data, and providing basic support for equipment perception. And the quality evaluation of the data is to evaluate the integrity and the effectiveness of the data.
Step S1 specifically includes the following steps:
s101, carrying out production real-time data acquisition, carrying out data acquisition on environmental quantity and equipment quantity through monitoring technologies such as an intelligent power distribution room, an intelligent platform area, an intelligent pipe gallery and intelligent equipment, carrying out data real-time diagnosis and analysis, generating a real-time task, and realizing real-time perception capability of the equipment.
S102, carrying out production business data acquisition, including business data access, and then carrying out ledger analysis by combining equipment assets to generate a production plan task. The service data access comprises production inspection, first-aid repair, overhaul, test, acceptance, defect and the like.
S103, according to the collected real-time data, real-time data evaluation is carried out, the special data are grouped, data fusion and analysis are divided into data discrimination and cleaning, data storage and processing, and data fusion mining and analysis, so that problem data are eliminated in advance, and error report of abnormal work orders is reduced.
And S104, according to the collected business data, carrying out production business data evaluation, carrying out integrity and validity verification on the business data, sending the data with problems to a production business system, and improving the business data in the business system to effectively support and sense the evaluation data, reduce invalid data and avoid the condition that the invalid data affects the production operation and maintenance plan.
And S2, sensing the equipment risk, establishing an equipment risk evaluation sensing model, and identifying the equipment risk. In step S2, unknown risk and known risk of the device are identified by the perception evaluation item and the perception evaluation weight of the device.
Step S2 specifically includes the following steps:
s201, analyzing the historical data, establishing an equipment perception model, forming a support, and accurately identifying the known risks and the unknown risks of the equipment.
S202, setting known risks of the equipment, setting influence weights and diagnostic value weights according to the environment quantity of real-time data and the state quantity of the equipment, and forming equipment rapid identification and equipment abnormal rapid response to external risks and operation risks.
Wherein the environmental quantity comprises temperature, humidity, gas, water immersion, border crossing and the like; the device state quantities include current, voltage, partial discharge, temperature, and the like.
S203, establishing external risks and internal risks of the equipment according to the production historical data, carrying out risk identification on the equipment, and predicting the future risks of the equipment. And support is provided for annual and monthly production.
And S3, evaluating equipment risk, and performing risk evaluation on the equipment according to the equipment perception health degree and the influence of the equipment on the net rack.
Step S3 specifically includes the following steps:
s301, evaluating the influence in the whole network frame through the influence caused by equipment faults, and dividing the importance according to multiple aspects such as equipment influence range, power failure electric quantity loss, power failure social influence and the like.
S302, collecting the real-time data and the historical working data of the power distribution equipment according to the equipment risk perception evaluation items, then quantifying indexes, and calculating the real-time health degree index of the equipment.
And S303, performing risk assessment on the equipment according to the risk assessment matrix by combining the health degree and the importance degree of the equipment.
And S4, establishing a strategy level and a coping strategy according to the risk assessment result.
Step S4 specifically includes the following steps:
s401, according to the risk assessment result value, establishing an equipment operation and maintenance strategy level and a coping strategy, and dividing the strategy into a maintenance strategy and a maintenance strategy. The influence of the equipment operation and maintenance strategy on the system reliability is considered, and the influence on the equipment fault is lack of quantitative evaluation. The state maintenance strategy focuses on controlling the operation and maintenance cost of the equipment and improves the maintenance efficiency.
S402, according to the coping strategy, the system automatically generates corresponding real-time and non-real-time task work orders, automatically sends the work orders to corresponding equipment owners, and informs the equipment owners in a reminding mode of short messages or system bulletins and the like.
And S403, comprehensively considering all production events to form a comprehensive strategy. A comprehensive strategy is a task that is performed in conjunction with other tasks, such as a comprehensive solution that considers major network production or other production events together when formulating a strategy. And a better solution is provided, and the method has great significance for reducing the workload and the repeated power failure.
And S5, executing an operation and maintenance strategy, developing production operation and maintenance according to the risk coping strategy, and providing data and evaluation support for the steps S1-S4 through information backfilling. The information backfilling comprises field strategy execution information backfilling, strategy adjustment information backfilling and the like.
Step S5 specifically includes the following steps:
s501, the system automatically generates a planned work order and a temporary work order according to a strategy, carries out production field work according to a scheme according to the type of the work order, backfills field data, and adjusts the field according to the non-conforming scheme by combining field working conditions.
S502, performing big data analysis on the historical data, and revising the equipment perception item and the perception item weight by utilizing cluster analysis, relevance analysis and an artificial neural network algorithm.
S503, because the quality problem of the historical data or the sample size is not enough to support learning, the dynamic perception model generated by the neural network in the step S502 needs to be simulated, manual intervention is adopted, and the perception item or the weight value is adjusted to achieve the optimal value.
The method is used for analyzing the running state of the power equipment in real time, and compared with the conventional mode of periodically evaluating and evaluating limited data of the equipment, the method increases the detection of the data influencing the running evaluation of the equipment, realizes the real-time data perception evaluation capability of the equipment, and can ensure the perception integrity and result preparation of the equipment evaluation.
The equipment risk coping level is linked with production operation and maintenance, work orders or reminders and the like are automatically generated, data are backfilled through field scheme execution and adjustment, and weight adjustment or perception model recombination is carried out on data influence through a neural network algorithm, so that dynamic adjustment of production operation modes such as a situation perception model and a risk coping strategy is realized, and scientific and effective data evaluation is guaranteed.
According to the method, the risk perception capability and the quick response capability of the equipment are improved, the failure rate of the equipment is reduced, and the power supply reliability of a power grid is improved.
The invention constructs a production situation perception operation and maintenance model by fusing the modern information communication technology, the equipment state detection technology and the traditional operation and maintenance service and the like in an intelligent direction, realizes the differentiated operation and maintenance of equipment, and leads the operation and maintenance management and the technical change which are suitable for the rapid development of a power grid.
Claims (10)
1. A situation awareness-based distribution network production differentiation operation and maintenance strategy method is characterized by comprising the following steps:
s1, collecting production data, collecting real-time and non-real-time production data, and evaluating the quality of the data;
s2, equipment risk perception, namely establishing an equipment risk evaluation perception model and carrying out equipment risk identification;
s3, risk assessment of equipment, namely performing risk assessment on the equipment according to the equipment perception health degree and the influence of the equipment on the net rack;
s4, establishing a strategy level and a coping strategy according to the risk assessment result;
and S5, executing an operation and maintenance strategy, developing production operation and maintenance according to the risk coping strategy, and providing data and evaluation support for the steps S1-S4 through information backfilling.
2. The situation awareness-based distribution network production differentiation operation and maintenance strategy method according to claim 1, wherein in step S1, the quality evaluation of the data is performed as integrity and effectiveness evaluation of the data.
3. The situation awareness-based distribution network production differentiation operation and maintenance strategy method according to claim 1, wherein the step S1 specifically comprises the following steps:
s101, carrying out production real-time data acquisition, carrying out data acquisition on environmental quantity and equipment quantity through an equipment monitoring technology, carrying out real-time diagnosis and analysis on the data, generating a real-time task, and realizing real-time perception capability of equipment;
s102, carrying out production service data acquisition, including service data access, and then carrying out ledger analysis by combining equipment assets to generate a production plan task;
s103, according to the collected real-time data, carrying out real-time data evaluation and eliminating problem data;
and S104, according to the collected business data, carrying out production business data evaluation, carrying out integrity and validity verification on the business data, and perfecting the problem data.
4. The situation awareness-based distribution network production differentiation operation and maintenance strategy method according to claim 1, wherein in step S2, unknown risk and known risk identification of a device is realized through a perception evaluation item and a perception evaluation weight of the device.
5. The situation awareness-based distribution network production differentiation operation and maintenance strategy method according to claim 4, wherein the step S2 specifically comprises the following steps:
s201, analyzing historical data, establishing an equipment perception model, forming a support, and accurately identifying known risks and unknown risks of equipment;
s202, establishing known risks of the equipment, establishing influence weights and diagnostic value weights according to the environment quantity of real-time data and the state quantity of the equipment, and forming equipment rapid identification and equipment abnormal rapid response to external risks and operation risks;
s203, establishing external risks and internal risks of the equipment according to the production historical data, carrying out risk identification on the equipment, and predicting the future risks of the equipment.
6. The situation awareness-based distribution network production differentiation operation and maintenance strategy method according to claim 5, wherein the step S3 specifically comprises the following steps:
s301, evaluating the influence of equipment faults in the whole net rack, and dividing importance;
s302, collecting real-time data and historical working data of the power distribution equipment according to the equipment risk perception evaluation item, then quantizing indexes, and calculating a real-time health index of the equipment;
and S303, performing risk assessment on the equipment according to the risk assessment matrix by combining the health degree and the importance degree of the equipment.
7. The situation awareness-based distribution network production differentiation operation and maintenance strategy method according to claim 1, wherein the step S4 specifically comprises the following steps:
s401, establishing an equipment operation and maintenance strategy level and a coping strategy according to the risk assessment result value;
s402, according to the coping strategy, the system automatically generates corresponding real-time and non-real-time task work orders, and meanwhile automatically dispatches the work orders to corresponding equipment owners;
and S403, comprehensively considering all production events to form a comprehensive strategy.
8. The situation awareness-based distribution network production differentiation operation and maintenance strategy method according to claim 1, wherein in the step S5, the information backfilling comprises field strategy execution information backfilling and strategy adjustment information backfilling.
9. The situation awareness-based distribution network production differentiation operation and maintenance strategy method according to claim 1, wherein the step S5 specifically comprises the following steps:
s501, the system automatically generates a planned work order and a temporary work order according to a strategy, develops production field work according to a scheme according to the type of the work order, backfills field data, and adjusts the field according to the non-conforming scheme by combining field working conditions;
s502, performing big data analysis on the historical data, and revising the equipment perception item and the perception item weight by utilizing cluster analysis, relevance analysis and an artificial neural network algorithm.
10. The situation awareness-based distribution network production differentiation operation and maintenance strategy method according to claim 9, wherein the step S5 further comprises the steps of:
and (5) simulating the dynamic perception model generated by the neural network in the step (S502), intervening, and adjusting perception items or weight values.
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