CN117933576A - Power distribution network operation and maintenance method, system and medium based on digital twin - Google Patents
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Abstract
The embodiment of the application provides a power distribution network operation and maintenance method, system and medium based on digital twin. The method comprises the following steps: the method comprises the steps of obtaining physical distribution network structure composition data, operation environment data and power fixing equipment data, obtaining a distribution network twin body and a distribution network aging rate index, extracting distribution network power distribution data and corresponding regional power demand data, load mutation monitoring data, power parameter monitoring data and historical fault log data according to the distribution network twin body, processing the distribution network power distribution data and the corresponding regional power demand data, the load mutation monitoring data and the power parameter monitoring data respectively, obtaining an abnormal power utilization index and a distribution network anti-interference capacity index, processing the distribution network anti-interference capacity index according to the distribution network aging rate index and the abnormal power utilization index, obtaining a distribution network operation maintenance period index, comparing the distribution network operation maintenance period index with a preset operation maintenance period threshold, obtaining an operation maintenance period deviation rate, and finally adjusting physical distribution network facilities and optimizing a distribution network system through the comparison of the deviation rate.
Description
Technical Field
The application relates to the technical field of digital twin and operation and maintenance of a power distribution network, in particular to an operation and maintenance method, a system and a medium of the power distribution network based on digital twin.
Background
The operation and maintenance technology of the power distribution network is a technology for operating, maintaining and managing the power distribution network in a power system, and is mainly used for guaranteeing safe, stable and efficient operation of the power distribution network so as to meet the demands of users. With the progress of technology and the development of information technology, the operation and maintenance technology of the power distribution network is continuously advanced, and the application of the information technology in the operation and maintenance of the power distribution network is more and more extensive. Real-time monitoring and data analysis on the running state of the power distribution network can be realized, so that problems can be found and solved in time, and the operation and maintenance efficiency is improved.
The existing operation and maintenance technology of the power distribution network still has the problems of inaccurate data acquisition surface, imperfect data calculation method, insufficient informatization degree and the like, so that the operation and maintenance cost is high, and the reliability of the operation and maintenance technology is not ideal.
In view of the above problems, an effective technical solution is currently needed.
Disclosure of Invention
The embodiment of the application aims to provide a power distribution network operation and maintenance method, a system and a medium based on digital twinning, which can obtain a power distribution network twinning body and a power distribution network aging rate index by obtaining physical power distribution network structure composition data, operation environment data and power fixing equipment data, respectively process and obtain an abnormal power utilization index and an anti-interference capacity index of the power distribution network according to power distribution network electric quantity demand data, corresponding regional power demand data, load mutation monitoring data, electric energy parameter monitoring data and historical fault log data extracted by the power distribution network twinning body, respectively process and obtain a power distribution network operation and maintenance period index by combining the power distribution network aging rate index and the abnormal power utilization index with the anti-interference capacity index of the power distribution network, compare the power distribution network operation and maintenance period index with a preset operation and maintenance period threshold, obtain an operation and maintenance period deviation rate, and finally adjust physical power distribution network facilities and optimize the power distribution network system through the comparison of the deviation rate.
The embodiment of the application provides a power distribution network operation and maintenance method based on digital twinning, which comprises the following steps:
Acquiring physical distribution network structure composition data, operation environment data and power fixing equipment data, acquiring a distribution network twin body through a preset distribution network digital twin model, and displaying the distribution network twin body and distribution network physical parameters;
Processing according to the physical distribution network structure composition data, the operation environment data and the power fixed equipment data through a preset facility life cycle prediction model to obtain a distribution network aging rate index;
Extracting power distribution network power distribution data, corresponding regional power demand data, load mutation monitoring data, electric energy parameter monitoring data and historical fault log data according to the power distribution network twin body;
Processing the power distribution network power distribution data and the corresponding regional power demand data through a preset power distribution network power monitoring model to obtain a power utilization abnormal index;
Processing the load mutation monitoring data, the electric energy parameter monitoring data and the historical fault log data through a preset power distribution network operation evaluation model to obtain a power distribution network anti-interference capability index;
Combining the anti-interference capacity index of the power distribution network according to the ageing rate index and the abnormal power utilization index of the power distribution network, and processing the power distribution network through a preset power distribution network operation maintenance model to obtain a power distribution network operation maintenance period index;
Comparing the operation maintenance period index of the power distribution network with a preset operation maintenance period threshold value to obtain an operation maintenance period deviation rate, judging whether the operation maintenance period deviation rate is larger than the preset deviation rate threshold value, and if so, adjusting physical power distribution network facilities and optimizing a power distribution network system.
In the method for operating and maintaining a power distribution network based on digital twin according to the embodiment of the present application, the obtaining physical power distribution network structure composition data, operating environment data and power fixing device data, obtaining a power distribution network twin through a preset power distribution network digital twin model, and displaying the power distribution network twin and the power distribution network physical parameters, includes:
acquiring physical distribution network structure composition data, operation environment data and power fixing equipment data;
the distribution network structure composition data comprise overhead line vein data, cable tower specification data, isolation equipment characteristic data and compensation equipment characteristic data;
The operation environment data comprise power distribution network geographical position data, temperature and humidity data and wind power direction data;
The power fixing equipment data comprise high-voltage low-voltage equipment data, power generation equipment performance data and power system accessory matching data;
and obtaining a power distribution network twin body and displaying physical parameters of the power distribution network twin body and the power distribution network by presetting a power distribution network digital twin model according to the overhead line context data, the cable tower specification data, the isolation equipment characteristic data, the compensation equipment characteristic data, the power distribution network geographic position data, the temperature and humidity data, the wind power direction data, the high-voltage low-voltage equipment data and the power generation equipment performance data and the power system accessory matching data.
In the power distribution network operation and maintenance method based on digital twin according to the embodiment of the present application, the power distribution network aging rate index is obtained by processing the physical power distribution network structure composition data, the operation environment data and the power fixing device data through a preset facility life cycle prediction model, specifically:
Processing according to the physical distribution network structure composition data, the operation environment data and the power fixed equipment data through a preset facility life cycle prediction model to obtain a distribution network aging rate index;
The calculation formula of the facility life cycle prediction model is as follows:
；
wherein, Is the ageing rate index of the power distribution network,/>For physical distribution network structural composition data,/>For running environment data,/>For electric power fixed equipment data,/>Is a preset characteristic coefficient.
In the power distribution network operation and maintenance method based on digital twin according to the embodiment of the present application, the power distribution network power distribution data and the corresponding regional power demand data are processed through a preset power distribution network power monitoring model to obtain a power utilization abnormal index, which specifically includes:
acquiring power distribution data of a power distribution network and corresponding regional power demand data;
extracting regional power dispatching data and regional power consumption data according to the power distribution network power distribution data;
According to the regional power scheduling data and the regional power consumption data and the regional power demand data, processing through a preset power distribution network power monitoring model to obtain an abnormal power utilization index;
The calculation formula of the power distribution network electric quantity monitoring model is as follows:
；
wherein, Is the abnormal index of the utilization rate of electric quantity,/>Scheduling data for regional power,/>For regional power consumption data,/>For regional power demand data,/>Is a preset characteristic coefficient.
In the operation and maintenance method of the power distribution network based on digital twin in the embodiment of the present application, the processing is performed by presetting a power distribution network operation evaluation model according to the load mutation monitoring data, the electric energy parameter monitoring data and the historical fault log data, so as to obtain an anti-interference capability index of the power distribution network, which specifically includes:
Processing the load mutation monitoring data, the electric energy parameter monitoring data and the historical fault log data through a preset power distribution network operation evaluation model to obtain a power distribution network anti-interference capability index;
the calculation formula of the power distribution network operation evaluation model is as follows:
；
wherein, Index of anti-interference capability of power distribution network,/>For load mutation monitoring data,/>For monitoring data of electric energy parameters,/>For historical fault log data,/>Is a preset characteristic coefficient.
In the operation and maintenance method for a power distribution network based on digital twin in the embodiment of the present application, the anti-interference capability index of the power distribution network is combined according to the aging rate index and the abnormal power utilization index of the power distribution network, and the operation and maintenance period index of the power distribution network is obtained by processing through a preset operation and maintenance model of the power distribution network, specifically:
Combining the anti-interference capacity index of the power distribution network according to the ageing rate index and the abnormal power utilization index of the power distribution network, and processing the power distribution network through a preset power distribution network operation maintenance model to obtain a power distribution network operation maintenance period index;
The calculation formula of the operation maintenance model of the power distribution network is as follows:
；
wherein, Maintenance cycle index for power distribution network operation,/>Is the ageing rate index of the power distribution network,/>Is the abnormal index of the utilization rate of electric quantity,/>Index of anti-interference capability of power distribution network,/>Is a preset characteristic coefficient.
In the operation and maintenance method for a power distribution network based on digital twinning according to the embodiment of the present application, the operation and maintenance period index of the power distribution network is compared with a preset operation and maintenance period threshold value to obtain an operation and maintenance period deviation rate, and whether the operation and maintenance period deviation rate is greater than the preset deviation rate threshold value is determined, if so, a physical power distribution network facility is adjusted and a power distribution network system is optimized, specifically:
Acquiring an operation maintenance period index of a power distribution network;
Comparing the operation maintenance period index of the power distribution network with a preset operation maintenance period threshold value to obtain an operation maintenance period deviation rate;
Judging whether the deviation rate of the operation and maintenance period is larger than a preset deviation rate threshold value or not;
if the power distribution parameters are greater than or equal to the preset value, adjusting physical power distribution network facilities and optimizing a power distribution network system;
If the value is smaller than the preset value, no adjustment is needed.
In a second aspect, an embodiment of the present application provides a power distribution network operation and maintenance system based on digital twinning, where the system includes: the system comprises a memory and a processor, wherein the memory comprises a program of a power distribution network operation and maintenance method based on digital twinning, and the program of the power distribution network operation and maintenance method based on digital twinning realizes the following steps when being executed by the processor:
Acquiring physical distribution network structure composition data, operation environment data and power fixing equipment data, acquiring a distribution network twin body through a preset distribution network digital twin model, and displaying the distribution network twin body and distribution network physical parameters;
Processing according to the physical distribution network structure composition data, the operation environment data and the power fixed equipment data through a preset facility life cycle prediction model to obtain a distribution network aging rate index;
Extracting power distribution network power distribution data, corresponding regional power demand data, load mutation monitoring data, electric energy parameter monitoring data and historical fault log data according to the power distribution network twin body;
Processing the power distribution network power distribution data and the corresponding regional power demand data through a preset power distribution network power monitoring model to obtain a power utilization abnormal index;
Processing the load mutation monitoring data, the electric energy parameter monitoring data and the historical fault log data through a preset power distribution network operation evaluation model to obtain a power distribution network anti-interference capability index;
Combining the anti-interference capacity index of the power distribution network according to the ageing rate index and the abnormal power utilization index of the power distribution network, and processing the power distribution network through a preset power distribution network operation maintenance model to obtain a power distribution network operation maintenance period index;
Comparing the operation maintenance period index of the power distribution network with a preset operation maintenance period threshold value to obtain an operation maintenance period deviation rate, judging whether the operation maintenance period deviation rate is larger than the preset deviation rate threshold value, and if so, adjusting physical power distribution network facilities and optimizing a power distribution network system.
In the operation and maintenance system of a power distribution network based on digital twin in the embodiment of the present application, the obtaining physical power distribution network structure composition data, operation environment data and power fixing device data, obtaining a power distribution network twin through a preset power distribution network digital twin model, and displaying the power distribution network twin and the power distribution network physical parameters, includes:
acquiring physical distribution network structure composition data, operation environment data and power fixing equipment data;
the distribution network structure composition data comprise overhead line vein data, cable tower specification data, isolation equipment characteristic data and compensation equipment characteristic data;
The operation environment data comprise power distribution network geographical position data, temperature and humidity data and wind power direction data;
The power fixing equipment data comprise high-voltage low-voltage equipment data, power generation equipment performance data and power system accessory matching data;
and obtaining a power distribution network twin body and displaying physical parameters of the power distribution network twin body and the power distribution network by presetting a power distribution network digital twin model according to the overhead line context data, the cable tower specification data, the isolation equipment characteristic data, the compensation equipment characteristic data, the power distribution network geographic position data, the temperature and humidity data, the wind power direction data, the high-voltage low-voltage equipment data and the power generation equipment performance data and the power system accessory matching data.
In a third aspect, an embodiment of the present application further provides a readable storage medium, where the readable storage medium includes a digital twin-based operation and maintenance method program for a power distribution network, where the digital twin-based operation and maintenance method program is executed by a processor, to implement a digital twin-based operation and maintenance method for a power distribution network according to any one of the foregoing steps.
It can be seen from the above that, the operation and maintenance method, system and medium for a power distribution network based on digital twin provided by the embodiment of the application obtain the power distribution network twin body through obtaining the physical power distribution network structure composition data, the operation environment data and the power fixing equipment data, obtain the power distribution network twin body through presetting the power distribution network digital twin model, display the power distribution network twin body and the power distribution network physical parameters, process according to the physical power distribution network structure composition data, the operation environment data and the power fixing equipment data through presetting the facility life cycle prediction model, obtain the power distribution network aging rate index, extract the power distribution network power distribution data and the corresponding regional power demand data, the load mutation monitoring data, the power parameter monitoring data and the historical fault log data according to the power distribution network power distribution data and the corresponding regional power demand data, processing is carried out through a preset power distribution network power monitoring model to obtain an abnormal power utilization index, processing is carried out through a preset power distribution network operation evaluation model according to load mutation monitoring data, power parameter monitoring data and historical fault log data to obtain a power distribution network anti-interference capability index, processing is carried out through a preset power distribution network operation maintenance model according to a power distribution network aging rate index and an abnormal power utilization index combined with the power distribution network anti-interference capability index to obtain a power distribution network operation maintenance period index, comparing the power distribution network operation maintenance period index with a preset operation maintenance period threshold to obtain an operation maintenance period deviation rate, judging whether the operation maintenance period deviation rate is larger than the preset deviation rate threshold, and if the operation maintenance period deviation rate is larger than or equal to the preset deviation rate threshold, adjusting physical power distribution network facilities and optimizing a power distribution network system. The technology comprehensively acquires various data influencing the operation of the power distribution network, acquires the operation maintenance period index of the power distribution network and judges the compliance of the operation maintenance period index of the power distribution network by combining the aging rate index and the electric quantity utilization rate abnormality index of the power distribution network with the anti-interference capacity index of the power distribution network, realizes the effects of real-time monitoring, full life cycle prediction and bidirectional call of the operation of the power distribution network based on the digital twin technology, helps maintenance personnel find the optimal maintenance time point of the power distribution network, saves maintenance cost and improves the effectiveness of maintenance work.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a power distribution network operation and maintenance method based on digital twin provided by an embodiment of the application;
Fig. 2 is a flowchart for obtaining a twin body of a power distribution network based on a digital twin power distribution network operation and maintenance method provided by an embodiment of the present application;
fig. 3 is a flowchart for obtaining an ageing rate index of a power distribution network based on a digital twin power distribution network operation and maintenance method according to an embodiment of the present application;
fig. 4 is a flowchart of an abnormal power utilization index obtained by a power distribution network operation and maintenance method based on digital twin according to an embodiment of the present application;
fig. 5 is a flowchart for obtaining an anti-interference capability index of a power distribution network based on a digital twin power distribution network operation and maintenance method according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, fig. 1 is a flowchart of a method for operating and maintaining a power distribution network based on digital twinning according to some embodiments of the present application. The distribution network operation and maintenance method based on digital twinning is used in terminal equipment, such as computers, mobile phone terminals and the like. The operation and maintenance method of the power distribution network based on digital twin comprises the following steps:
S101, acquiring physical distribution network structure composition data, operation environment data and power fixing equipment data, acquiring a distribution network twin body through a preset distribution network digital twin model, and displaying the distribution network twin body and distribution network physical parameters;
S102, processing according to the physical distribution network structure composition data, the operation environment data and the power fixed equipment data through a preset facility life cycle prediction model to obtain a distribution network aging rate index;
S103, extracting power distribution data of the power distribution network, corresponding regional power demand data, load mutation monitoring data, electric energy parameter monitoring data and historical fault log data according to the power distribution network twin body;
s104, processing through a preset power distribution network power monitoring model according to the power distribution network power distribution data and the corresponding regional power demand data to obtain a power utilization abnormal index;
s105, processing according to the load mutation monitoring data, the electric energy parameter monitoring data and the historical fault log data through a preset power distribution network operation evaluation model to obtain a power distribution network anti-interference capability index;
S106, combining the anti-interference capacity index of the power distribution network according to the ageing rate index and the abnormal power utilization index of the power distribution network, and processing through a preset power distribution network operation and maintenance model to obtain a power distribution network operation and maintenance period index;
And S107, comparing the operation maintenance period index of the power distribution network with a preset operation maintenance period threshold value to obtain an operation maintenance period deviation rate, judging whether the operation maintenance period deviation rate is larger than the preset deviation rate threshold value, and if so, adjusting physical power distribution network facilities and optimizing a power distribution network system.
According to the method, firstly, physical distribution network structure composition data, operation environment data and power fixing equipment data are obtained, then a preset distribution network digital twin model is used for obtaining a distribution network twin body, the distribution network twin body and the distribution network physical parameter display are carried out, the distribution network aging rate index is obtained according to the physical distribution network structure composition data, the operation environment data and the power fixing equipment data, the distribution network aging rate index is processed through a preset facility life cycle prediction model, the distribution network operation maintenance cycle index is obtained according to the distribution network twin can be extracted, distribution network power distribution data and corresponding area electric quantity demand data and load mutation monitoring data, electric energy parameter monitoring data and historical fault log data are processed through a preset distribution network electric quantity monitoring model, the electric quantity utilization rate abnormality index is obtained according to the load mutation monitoring data, the electric energy parameter monitoring data and the historical fault log data, the distribution network operation evaluation model is used for processing, the distribution network anti-interference capacity index is obtained according to the distribution network aging rate index and the utilization rate abnormality index, the distribution network operation maintenance model is used for processing is carried out through the preset distribution network operation maintenance model, the distribution network operation maintenance cycle index is compared with the preset operation maintenance cycle threshold, and whether the distribution network operation maintenance cycle index is greater than the preset operation cycle is greater than or not greater than the preset operation cycle index is judged to be greater than the physical distribution network operation cycle deviation rate threshold, and the maintenance cycle is greater than the operation cycle is greater than the threshold is equal to the threshold or equal to the preset system. The technology comprehensively acquires various data influencing the operation of the power distribution network, acquires the operation maintenance period index of the power distribution network and judges the compliance of the operation maintenance period index of the power distribution network by combining the aging rate index and the electric quantity utilization rate abnormality index of the power distribution network with the anti-interference capacity index of the power distribution network, realizes the effects of real-time monitoring, full life cycle prediction and bidirectional call of the operation of the power distribution network based on the digital twin technology, helps maintenance personnel find the optimal maintenance time point of the power distribution network, saves maintenance cost and improves the effectiveness of maintenance work.
Referring to fig. 2, fig. 2 is a flowchart of obtaining a twin body of a power distribution network based on a digital twin power distribution network operation and maintenance method according to some embodiments of the present application. According to the embodiment of the application, the obtaining of the physical distribution network structure composition data, the operation environment data and the power fixing equipment data, the obtaining of the distribution network twin body through the preset distribution network digital twin model, and the displaying of the distribution network twin body and the distribution network physical parameters are carried out, and the method comprises the following steps:
s201, acquiring physical distribution network structure composition data, operation environment data and power fixing equipment data;
s202, the distribution network structure composition data comprise overhead line vein data, cable tower specification data, isolation equipment characteristic data and compensation equipment characteristic data;
s203, the operation environment data comprise power distribution network geographical position data, temperature and humidity data and wind power direction data;
S204, the power fixing equipment data comprise high-voltage low-voltage equipment data, power generation equipment performance data and power system accessory matching data;
S205, according to the overhead line context data, the cable tower specification data, the isolation equipment characteristic data, the compensation equipment characteristic data, the distribution network geographical position data, the temperature and humidity data, the wind direction data, the high-voltage low-voltage equipment data and the power generation equipment performance data and the power system accessory matching data, a distribution network digital twin model is preset, so that a distribution network twin body is obtained, and the distribution network twin body and the distribution network physical parameters are displayed.
In order to improve accuracy and comprehensiveness of the operation and maintenance technical method of the power distribution network, physical power distribution network structure composition data, operation environment data and power fixing equipment data are obtained, the power distribution network structure composition data comprise overhead line context data, cable tower specification data, isolation equipment characteristic data and compensation equipment characteristic data, the operation environment data comprise power distribution network geographic position data, temperature and humidity data and wind power direction data, the power fixing equipment data comprise high-voltage low-voltage equipment data, power generation equipment performance data and power system accessory matching data, and then according to the overhead line context data, cable tower specification data, isolation equipment characteristic data, compensation equipment characteristic data, power distribution network geographic position data, temperature and humidity data, wind power direction data, high-voltage low-voltage equipment data and power generation equipment performance data and power system accessory matching data, a power distribution network twin body can be obtained through a preset power distribution network digital twin model, and power distribution network twin body and power distribution network physical parameter display can be achieved.
Referring to fig. 3, fig. 3 is a flowchart for obtaining an aging rate index of a power distribution network based on a digital twin power distribution network operation and maintenance method according to some embodiments of the present application. According to the embodiment of the application, the physical distribution network structure composition data, the operation environment data and the power fixing equipment data are processed through a preset facility life cycle prediction model to obtain a distribution network aging rate index, which is specifically as follows:
s301, processing according to the physical distribution network structure composition data, the operation environment data and the power fixed equipment data through a preset facility life cycle prediction model to obtain a distribution network aging rate index;
The calculation formula of the facility life cycle prediction model is as follows:
；
wherein, Is the ageing rate index of the power distribution network,/>For physical distribution network structural composition data,/>For running environment data,/>For electric power fixed equipment data,/>And the characteristic coefficient is preset (the characteristic coefficient is obtained through query of a preset operation and maintenance database of the power distribution network).
The method comprises the steps of obtaining a physical distribution network structure life, processing according to physical distribution network structure composition data, running environment data and power fixing equipment data through a preset facility life cycle prediction model, obtaining a distribution network aging rate index, and predicting the life of the distribution network structure and the power fixing equipment.
Referring to fig. 4, fig. 4 is a flowchart of an abnormal power utilization index obtained by a digital twin-based power distribution network operation and maintenance method according to some embodiments of the present application. According to the embodiment of the application, according to the power distribution data of the power distribution network and the power demand data of the corresponding area, the power utilization rate abnormality index is obtained by processing through a preset power monitoring model of the power distribution network, specifically:
S401, acquiring power distribution data of a power distribution network and corresponding regional power demand data;
s402, extracting regional power quantity scheduling data and regional power quantity consumption data according to the power distribution network power distribution data;
S403, processing according to the regional power scheduling data and the regional power consumption data and the regional power demand data through a preset power distribution network power monitoring model to obtain an abnormal power utilization index;
The calculation formula of the power distribution network electric quantity monitoring model is as follows:
；
wherein, Is the abnormal index of the utilization rate of electric quantity,/>Scheduling data for regional power,/>For regional power consumption data,/>For regional power demand data,/>And the characteristic coefficient is preset (the characteristic coefficient is obtained through query of a preset operation and maintenance database of the power distribution network).
In order to master and improve the power utilization efficiency, power distribution data and corresponding regional power demand data of a power distribution network are obtained, regional power scheduling data and regional power consumption data are extracted according to the power distribution data of the power distribution network, the regional power demand data are combined according to the regional power scheduling data and the regional power consumption data, the regional power demand data are processed through a preset power monitoring model of the power distribution network, abnormal indexes of the power utilization rate are obtained, abnormal power utilization data are used through the power, and abnormal power utilization behavior is found out to be stopped.
Referring to fig. 5, fig. 5 is a flowchart of obtaining an anti-interference capability index of a power distribution network based on a digital twin power distribution network operation and maintenance method according to some embodiments of the present application. According to the embodiment of the application, the load mutation monitoring data, the electric energy parameter monitoring data and the historical fault log data are processed through a preset power distribution network operation evaluation model to obtain a power distribution network anti-interference capability index, which is specifically as follows:
s501, processing according to the load mutation monitoring data, the electric energy parameter monitoring data and the historical fault log data through a preset power distribution network operation evaluation model to obtain a power distribution network anti-interference capability index;
the calculation formula of the power distribution network operation evaluation model is as follows:
；
wherein, Index of anti-interference capability of power distribution network,/>For load mutation monitoring data,/>For monitoring data of electric energy parameters,/>For historical fault log data,/>And the characteristic coefficient is preset (the characteristic coefficient is obtained through query of a preset operation and maintenance database of the power distribution network).
In order to further improve the running stability of the power distribution network, the power distribution network is processed through a preset power distribution network running evaluation model according to load mutation monitoring data, electric energy parameter monitoring data and historical fault log data, so that an anti-interference capability index of the power distribution network is obtained, and the current running state and the self anti-interference capability of the power distribution network are fully mastered.
According to the embodiment of the invention, the power distribution network operation maintenance period index is obtained by processing the power distribution network operation maintenance model according to the power distribution network aging rate index and the power utilization rate abnormality index combined with the power distribution network anti-interference capacity index, and specifically comprises the following steps:
Combining the anti-interference capacity index of the power distribution network according to the ageing rate index and the abnormal power utilization index of the power distribution network, and processing the power distribution network through a preset power distribution network operation maintenance model to obtain a power distribution network operation maintenance period index;
The calculation formula of the operation maintenance model of the power distribution network is as follows:
；
wherein, Maintenance cycle index for power distribution network operation,/>Is the ageing rate index of the power distribution network,/>Is the abnormal index of the utilization rate of electric quantity,/>Index of anti-interference capability of power distribution network,/>And the characteristic coefficient is preset (the characteristic coefficient is obtained through query of a preset operation and maintenance database of the power distribution network).
In order to improve the operation reliability of the power distribution network, the anti-interference capacity index of the power distribution network is combined according to the ageing rate index and the abnormal power utilization index of the power distribution network, and the operation maintenance period index of the power distribution network is obtained through processing by presetting an operation maintenance model of the power distribution network.
According to the embodiment of the invention, the operation maintenance period index of the power distribution network is compared with a preset operation maintenance period threshold value to obtain an operation maintenance period deviation rate, whether the operation maintenance period deviation rate is larger than the preset deviation rate threshold value is judged, and if the operation maintenance period deviation rate is larger than or equal to the preset deviation rate threshold value, physical power distribution network facilities are adjusted and a power distribution network system is optimized, specifically:
Acquiring an operation maintenance period index of a power distribution network;
Comparing the operation maintenance period index of the power distribution network with a preset operation maintenance period threshold value to obtain an operation maintenance period deviation rate;
Judging whether the deviation rate of the operation and maintenance period is larger than a preset deviation rate threshold value or not;
if the power distribution parameters are greater than or equal to the preset value, adjusting physical power distribution network facilities and optimizing a power distribution network system;
If the value is smaller than the preset value, no adjustment is needed.
In order to improve the long-term operation stability of the power distribution network, the operation maintenance period index of the power distribution network is compared with a preset operation maintenance period threshold value to obtain an operation maintenance period deviation rate, whether the operation maintenance period deviation rate is larger than the preset deviation rate threshold value is judged, if so, physical power distribution network facilities are adjusted, a power distribution network system is optimized, the operation current situation of the power distribution network is evaluated and the operation prospect is predicted based on digital twin, and an accurate maintenance time point is provided for operation maintenance personnel of the power distribution network.
According to an embodiment of the present invention, further comprising:
acquiring target load data of a power distribution network;
according to the target load data, performing simulation operation through a power distribution network twin body to obtain an overload operation index;
Comparing the overload operation index with a preset operation threshold value to obtain an operation deviation rate;
Judging whether the operation deviation rate is larger than a preset operation deviation rate threshold value or not;
if the load is greater than or equal to the target load, the target load is reduced;
If the value is smaller than the preset value, the value is applied to the operation of the physical distribution network.
The invention also discloses a power distribution network operation and maintenance system based on digital twin, which comprises a memory and a processor, wherein the memory comprises a power distribution network operation and maintenance method program based on digital twin, and the power distribution network operation and maintenance method program based on digital twin is executed by the processor to realize the following steps:
Acquiring physical distribution network structure composition data, operation environment data and power fixing equipment data, acquiring a distribution network twin body through a preset distribution network digital twin model, and displaying the distribution network twin body and distribution network physical parameters;
Processing according to the physical distribution network structure composition data, the operation environment data and the power fixed equipment data through a preset facility life cycle prediction model to obtain a distribution network aging rate index;
Extracting power distribution network power distribution data, corresponding regional power demand data, load mutation monitoring data, electric energy parameter monitoring data and historical fault log data according to the power distribution network twin body;
Processing the power distribution network power distribution data and the corresponding regional power demand data through a preset power distribution network power monitoring model to obtain a power utilization abnormal index;
Processing the load mutation monitoring data, the electric energy parameter monitoring data and the historical fault log data through a preset power distribution network operation evaluation model to obtain a power distribution network anti-interference capability index;
Combining the anti-interference capacity index of the power distribution network according to the ageing rate index and the abnormal power utilization index of the power distribution network, and processing the power distribution network through a preset power distribution network operation maintenance model to obtain a power distribution network operation maintenance period index;
Comparing the operation maintenance period index of the power distribution network with a preset operation maintenance period threshold value to obtain an operation maintenance period deviation rate, judging whether the operation maintenance period deviation rate is larger than the preset deviation rate threshold value, and if so, adjusting physical power distribution network facilities and optimizing a power distribution network system.
According to the method, firstly, physical distribution network structure composition data, operation environment data and power fixing equipment data are obtained, then a preset distribution network digital twin model is used for obtaining a distribution network twin body, the distribution network twin body and the distribution network physical parameter display are carried out, the distribution network aging rate index is obtained according to the physical distribution network structure composition data, the operation environment data and the power fixing equipment data, the distribution network aging rate index is processed through a preset facility life cycle prediction model, the distribution network operation maintenance cycle index is obtained according to the distribution network twin can be extracted, distribution network power distribution data and corresponding area electric quantity demand data and load mutation monitoring data, electric energy parameter monitoring data and historical fault log data are processed through a preset distribution network electric quantity monitoring model, the electric quantity utilization rate abnormality index is obtained according to the load mutation monitoring data, the electric energy parameter monitoring data and the historical fault log data, the distribution network operation evaluation model is used for processing, the distribution network anti-interference capacity index is obtained according to the distribution network aging rate index and the utilization rate abnormality index, the distribution network operation maintenance model is used for processing is carried out through the preset distribution network operation maintenance model, the distribution network operation maintenance cycle index is compared with the preset operation maintenance cycle threshold, and whether the distribution network operation maintenance cycle index is greater than the preset operation cycle is greater than or not greater than the preset operation cycle index is judged to be greater than the physical distribution network operation cycle deviation rate threshold, and the maintenance cycle is greater than the operation cycle is greater than the threshold is equal to the threshold or equal to the preset system. The technology comprehensively acquires various data influencing the operation of the power distribution network, acquires the operation maintenance period index of the power distribution network and judges the compliance of the operation maintenance period index of the power distribution network by combining the aging rate index and the electric quantity utilization rate abnormality index of the power distribution network with the anti-interference capacity index of the power distribution network, realizes the effects of real-time monitoring, full life cycle prediction and bidirectional call of the operation of the power distribution network based on the digital twin technology, helps maintenance personnel find the optimal maintenance time point of the power distribution network, saves maintenance cost and improves the effectiveness of maintenance work.
According to the embodiment of the invention, the obtaining of the physical distribution network structure composition data, the operation environment data and the power fixing equipment data, the obtaining of the distribution network twin body through the preset distribution network digital twin model, and the displaying of the distribution network twin body and the distribution network physical parameters are carried out, and the method comprises the following steps:
acquiring physical distribution network structure composition data, operation environment data and power fixing equipment data;
the distribution network structure composition data comprise overhead line vein data, cable tower specification data, isolation equipment characteristic data and compensation equipment characteristic data;
The operation environment data comprise power distribution network geographical position data, temperature and humidity data and wind power direction data;
The power fixing equipment data comprise high-voltage low-voltage equipment data, power generation equipment performance data and power system accessory matching data;
and obtaining a power distribution network twin body and displaying physical parameters of the power distribution network twin body and the power distribution network by presetting a power distribution network digital twin model according to the overhead line context data, the cable tower specification data, the isolation equipment characteristic data, the compensation equipment characteristic data, the power distribution network geographic position data, the temperature and humidity data, the wind power direction data, the high-voltage low-voltage equipment data and the power generation equipment performance data and the power system accessory matching data.
In order to improve accuracy and comprehensiveness of the operation and maintenance technical method of the power distribution network, physical power distribution network structure composition data, operation environment data and power fixing equipment data are obtained, the power distribution network structure composition data comprise overhead line context data, cable tower specification data, isolation equipment characteristic data and compensation equipment characteristic data, the operation environment data comprise power distribution network geographic position data, temperature and humidity data and wind power direction data, the power fixing equipment data comprise high-voltage low-voltage equipment data, power generation equipment performance data and power system accessory matching data, and then according to the overhead line context data, cable tower specification data, isolation equipment characteristic data, compensation equipment characteristic data, power distribution network geographic position data, temperature and humidity data, wind power direction data, high-voltage low-voltage equipment data and power generation equipment performance data and power system accessory matching data, a power distribution network twin body can be obtained through a preset power distribution network digital twin model, and power distribution network twin body and power distribution network physical parameter display can be achieved.
According to the embodiment of the invention, the physical distribution network structure composition data, the operation environment data and the power fixing equipment data are processed through a preset facility life cycle prediction model to obtain a distribution network aging rate index, which is specifically as follows:
Processing according to the physical distribution network structure composition data, the operation environment data and the power fixed equipment data through a preset facility life cycle prediction model to obtain a distribution network aging rate index;
The calculation formula of the facility life cycle prediction model is as follows:
；
wherein, Is the ageing rate index of the power distribution network,/>For physical distribution network structural composition data,/>For running environment data,/>For electric power fixed equipment data,/>And the characteristic coefficient is preset (the characteristic coefficient is obtained through query of a preset operation and maintenance database of the power distribution network).
The method comprises the steps of obtaining a physical distribution network structure life, processing according to physical distribution network structure composition data, running environment data and power fixing equipment data through a preset facility life cycle prediction model, obtaining a distribution network aging rate index, and predicting the life of the distribution network structure and the power fixing equipment.
According to the embodiment of the invention, according to the power distribution data of the power distribution network and the power demand data of the corresponding area, the power utilization rate abnormality index is obtained by processing through a preset power monitoring model of the power distribution network, specifically:
acquiring power distribution data of a power distribution network and corresponding regional power demand data;
extracting regional power dispatching data and regional power consumption data according to the power distribution network power distribution data;
According to the regional power scheduling data and the regional power consumption data and the regional power demand data, processing through a preset power distribution network power monitoring model to obtain an abnormal power utilization index;
The calculation formula of the power distribution network electric quantity monitoring model is as follows:
；
wherein, Is the abnormal index of the utilization rate of electric quantity,/>Scheduling data for regional power,/>For regional power consumption data,/>For regional power demand data,/>And the characteristic coefficient is preset (the characteristic coefficient is obtained through query of a preset operation and maintenance database of the power distribution network).
In order to master and improve the power utilization efficiency, power distribution data and corresponding regional power demand data of a power distribution network are obtained, regional power scheduling data and regional power consumption data are extracted according to the power distribution data of the power distribution network, the regional power demand data are combined according to the regional power scheduling data and the regional power consumption data, the regional power demand data are processed through a preset power monitoring model of the power distribution network, abnormal indexes of the power utilization rate are obtained, abnormal power utilization data are used through the power, and abnormal power utilization behavior is found out to be stopped.
According to the embodiment of the invention, the load mutation monitoring data, the electric energy parameter monitoring data and the historical fault log data are processed through a preset power distribution network operation evaluation model to obtain a power distribution network anti-interference capability index, which is specifically as follows:
Processing the load mutation monitoring data, the electric energy parameter monitoring data and the historical fault log data through a preset power distribution network operation evaluation model to obtain a power distribution network anti-interference capability index;
the calculation formula of the power distribution network operation evaluation model is as follows:
；
wherein, Index of anti-interference capability of power distribution network,/>For load mutation monitoring data,/>For monitoring data of electric energy parameters,/>For historical fault log data,/>And the characteristic coefficient is preset (the characteristic coefficient is obtained through query of a preset operation and maintenance database of the power distribution network).
In order to further improve the running stability of the power distribution network, the power distribution network is processed through a preset power distribution network running evaluation model according to load mutation monitoring data, electric energy parameter monitoring data and historical fault log data, so that an anti-interference capability index of the power distribution network is obtained, and the current running state and the self anti-interference capability of the power distribution network are fully mastered.
According to the embodiment of the invention, the power distribution network operation maintenance period index is obtained by processing the power distribution network operation maintenance model according to the power distribution network aging rate index and the power utilization rate abnormality index combined with the power distribution network anti-interference capacity index, and specifically comprises the following steps:
Combining the anti-interference capacity index of the power distribution network according to the ageing rate index and the abnormal power utilization index of the power distribution network, and processing the power distribution network through a preset power distribution network operation maintenance model to obtain a power distribution network operation maintenance period index;
The calculation formula of the operation maintenance model of the power distribution network is as follows:
；
wherein, Maintenance cycle index for power distribution network operation,/>Is the ageing rate index of the power distribution network,/>Is the abnormal index of the utilization rate of electric quantity,/>Index of anti-interference capability of power distribution network,/>And the characteristic coefficient is preset (the characteristic coefficient is obtained through query of a preset operation and maintenance database of the power distribution network).
In order to improve the operation reliability of the power distribution network, the anti-interference capacity index of the power distribution network is combined according to the ageing rate index and the abnormal power utilization index of the power distribution network, and the operation maintenance period index of the power distribution network is obtained through processing by presetting an operation maintenance model of the power distribution network.
According to the embodiment of the invention, the operation maintenance period index of the power distribution network is compared with a preset operation maintenance period threshold value to obtain an operation maintenance period deviation rate, whether the operation maintenance period deviation rate is larger than the preset deviation rate threshold value is judged, and if the operation maintenance period deviation rate is larger than or equal to the preset deviation rate threshold value, physical power distribution network facilities are adjusted and a power distribution network system is optimized, specifically:
Acquiring an operation maintenance period index of a power distribution network;
Comparing the operation maintenance period index of the power distribution network with a preset operation maintenance period threshold value to obtain an operation maintenance period deviation rate;
Judging whether the deviation rate of the operation and maintenance period is larger than a preset deviation rate threshold value or not;
if the power distribution parameters are greater than or equal to the preset value, adjusting physical power distribution network facilities and optimizing a power distribution network system;
If the value is smaller than the preset value, no adjustment is needed.
In order to improve the long-term operation stability of the power distribution network, the operation maintenance period index of the power distribution network is compared with a preset operation maintenance period threshold value to obtain an operation maintenance period deviation rate, whether the operation maintenance period deviation rate is larger than the preset deviation rate threshold value is judged, if so, physical power distribution network facilities are adjusted, a power distribution network system is optimized, the operation current situation of the power distribution network is evaluated and the operation prospect is predicted based on digital twin, and an accurate maintenance time point is provided for operation maintenance personnel of the power distribution network.
According to an embodiment of the present invention, further comprising:
acquiring target load data of a power distribution network;
according to the target load data, performing simulation operation through a power distribution network twin body to obtain an overload operation index;
Comparing the overload operation index with a preset operation threshold value to obtain an operation deviation rate;
Judging whether the operation deviation rate is larger than a preset operation deviation rate threshold value or not;
if the load is greater than or equal to the target load, the target load is reduced;
If the value is smaller than the preset value, the value is applied to the operation of the physical distribution network.
The third aspect of the present invention further provides a readable storage medium, where the readable storage medium includes a digital twin-based operation and maintenance method program for a power distribution network, where the digital twin-based operation and maintenance method program is executed by a processor to implement the steps of the digital twin-based operation and maintenance method for a power distribution network as described in any one of the above.
According to the distribution network operation and maintenance method, system and medium based on digital twin, distribution network twin is obtained through obtaining physical distribution network structure composition data, operation environment data and power fixing equipment data, then the distribution network twin is obtained through a preset distribution network digital twin model, the distribution network twin and distribution network physical parameters are displayed, the distribution network aging rate index is obtained through processing through a preset facility life cycle prediction model according to the physical distribution network structure composition data, the operation environment data and the power fixing equipment data, distribution network power distribution data and corresponding area electric quantity demand data and load mutation monitoring data, electric energy parameter monitoring data and historical fault log data can be extracted through the distribution network twin, the electric quantity utilization rate abnormality index is obtained through processing through a preset distribution network electric quantity monitoring model, the distribution network anti-interference capacity index is obtained through processing through a preset distribution network operation evaluation model according to the distribution network aging rate index and the electric quantity utilization rate abnormality index, the distribution network operation maintenance cycle is obtained through processing through a preset distribution network operation maintenance model, and the distribution network operation maintenance cycle is compared with the preset distribution network operation maintenance cycle index if the preset operation and maintenance cycle is greater than or equal to the operation and maintenance cycle of the preset distribution network operation and maintenance cycle is greater than or equal to the threshold value if the operation and maintenance cycle is greater than or equal to the threshold value is obtained. The technology comprehensively acquires various data influencing the operation of the power distribution network, acquires the operation maintenance period index of the power distribution network and judges the compliance of the operation maintenance period index of the power distribution network by combining the aging rate index and the electric quantity utilization rate abnormality index of the power distribution network with the anti-interference capacity index of the power distribution network, realizes the effects of real-time monitoring, full life cycle prediction and bidirectional call of the operation of the power distribution network based on the digital twin technology, helps maintenance personnel find the optimal maintenance time point of the power distribution network, saves maintenance cost and improves the effectiveness of maintenance work.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above described device embodiments are only illustrative, e.g. the division of the units is only one logical function division, and there may be other divisions in practice, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or units, whether electrically, mechanically, or otherwise.
The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units; can be located in one place or distributed to a plurality of network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present invention may be integrated in one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated in one unit; the integrated units may be implemented in hardware or in hardware plus software functional units.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware related to program instructions, and the foregoing program may be stored in a readable storage medium, where the program, when executed, performs steps including the above method embodiments; and the aforementioned storage medium includes: a removable storage device, a read-only memory, a random access memory, a magnetic or optical disk, or other various media capable of storing program code.
Or the above-described integrated units of the invention may be stored in a readable storage medium if implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in essence or a part contributing to the prior art in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, ROM, RAM, magnetic or optical disk, or other medium capable of storing program code.
Claims (10)
1. The operation and maintenance method of the power distribution network based on digital twinning is characterized by comprising the following steps of:
Acquiring physical distribution network structure composition data, operation environment data and power fixing equipment data, acquiring a distribution network twin body through a preset distribution network digital twin model, and displaying the distribution network twin body and distribution network physical parameters;
Processing according to the physical distribution network structure composition data, the operation environment data and the power fixed equipment data through a preset facility life cycle prediction model to obtain a distribution network aging rate index;
Extracting power distribution network power distribution data, corresponding regional power demand data, load mutation monitoring data, electric energy parameter monitoring data and historical fault log data according to the power distribution network twin body;
Processing the power distribution network power distribution data and the corresponding regional power demand data through a preset power distribution network power monitoring model to obtain a power utilization abnormal index;
Processing the load mutation monitoring data, the electric energy parameter monitoring data and the historical fault log data through a preset power distribution network operation evaluation model to obtain a power distribution network anti-interference capability index;
Combining the anti-interference capacity index of the power distribution network according to the ageing rate index and the abnormal power utilization index of the power distribution network, and processing the power distribution network through a preset power distribution network operation maintenance model to obtain a power distribution network operation maintenance period index;
Comparing the operation maintenance period index of the power distribution network with a preset operation maintenance period threshold value to obtain an operation maintenance period deviation rate, judging whether the operation maintenance period deviation rate is larger than the preset deviation rate threshold value, and if so, adjusting physical power distribution network facilities and optimizing a power distribution network system.
2. The method for operating and maintaining a power distribution network based on digital twin according to claim 1, wherein the steps of obtaining physical power distribution network structure composition data, operation environment data and power fixing equipment data, obtaining a power distribution network twin through a preset power distribution network digital twin model, and displaying the power distribution network twin and physical parameters of the power distribution network comprise:
acquiring physical distribution network structure composition data, operation environment data and power fixing equipment data;
the distribution network structure composition data comprise overhead line vein data, cable tower specification data, isolation equipment characteristic data and compensation equipment characteristic data;
The operation environment data comprise power distribution network geographical position data, temperature and humidity data and wind power direction data;
The power fixing equipment data comprise high-voltage low-voltage equipment data, power generation equipment performance data and power system accessory matching data;
and obtaining a power distribution network twin body and displaying physical parameters of the power distribution network twin body and the power distribution network by presetting a power distribution network digital twin model according to the overhead line context data, the cable tower specification data, the isolation equipment characteristic data, the compensation equipment characteristic data, the power distribution network geographic position data, the temperature and humidity data, the wind power direction data, the high-voltage low-voltage equipment data and the power generation equipment performance data and the power system accessory matching data.
3. The operation and maintenance method of a power distribution network based on digital twin according to claim 2, wherein the processing is performed through a preset facility life cycle prediction model according to the physical power distribution network structure composition data, the operation environment data and the power fixing equipment data, so as to obtain a power distribution network aging rate index, which specifically comprises:
Processing according to the physical distribution network structure composition data, the operation environment data and the power fixed equipment data through a preset facility life cycle prediction model to obtain a distribution network aging rate index;
The calculation formula of the facility life cycle prediction model is as follows:
；
wherein, Is the ageing rate index of the power distribution network,/>For physical distribution network structural composition data,/>In order to run the environmental data of the environment,For electric power fixed equipment data,/>Is a preset characteristic coefficient.
4. The operation and maintenance method of a power distribution network based on digital twin according to claim 3, wherein the processing is performed through a preset power distribution network power monitoring model according to the power distribution network power distribution data and the power demand data of the corresponding area, so as to obtain an abnormal index of power utilization rate, specifically:
acquiring power distribution data of a power distribution network and corresponding regional power demand data;
extracting regional power dispatching data and regional power consumption data according to the power distribution network power distribution data;
According to the regional power scheduling data and the regional power consumption data and the regional power demand data, processing through a preset power distribution network power monitoring model to obtain an abnormal power utilization index;
The calculation formula of the power distribution network electric quantity monitoring model is as follows:
；
wherein, Is the abnormal index of the utilization rate of electric quantity,/>Scheduling data for regional power,/>As the regional power consumption data,For regional power demand data,/>Is a preset characteristic coefficient.
5. The operation and maintenance method of a distribution network based on digital twin according to claim 4, wherein the processing is performed by a preset distribution network operation evaluation model according to the load mutation monitoring data, the electric energy parameter monitoring data and the historical fault log data to obtain an anti-interference capability index of the distribution network, specifically:
Processing the load mutation monitoring data, the electric energy parameter monitoring data and the historical fault log data through a preset power distribution network operation evaluation model to obtain a power distribution network anti-interference capability index;
the calculation formula of the power distribution network operation evaluation model is as follows:
；
wherein, Index of anti-interference capability of power distribution network,/>For load mutation monitoring data,/>For monitoring data of electric energy parameters,/>For historical fault log data,/>Is a preset characteristic coefficient.
6. The operation and maintenance method of a power distribution network based on digital twin according to claim 5, wherein the power distribution network operation and maintenance period index is obtained by combining the power distribution network anti-interference capability index according to the power distribution network aging rate index and the power utilization rate abnormality index and processing through a preset power distribution network operation and maintenance model, specifically:
Combining the anti-interference capacity index of the power distribution network according to the ageing rate index and the abnormal power utilization index of the power distribution network, and processing the power distribution network through a preset power distribution network operation maintenance model to obtain a power distribution network operation maintenance period index;
The calculation formula of the operation maintenance model of the power distribution network is as follows:
；
wherein, Maintenance cycle index for power distribution network operation,/>Is the ageing rate index of the power distribution network,/>Is the abnormal index of the utilization rate of electric quantity,/>Index of anti-interference capability of power distribution network,/>Is a preset characteristic coefficient.
7. The operation and maintenance method of a power distribution network based on digital twin according to claim 6, wherein comparing the operation and maintenance period index of the power distribution network with a preset operation and maintenance period threshold value to obtain an operation and maintenance period deviation rate, and judging whether the operation and maintenance period deviation rate is greater than the preset deviation rate threshold value, if so, adjusting a physical power distribution network facility and optimizing a power distribution network system, specifically:
Acquiring an operation maintenance period index of a power distribution network;
Comparing the operation maintenance period index of the power distribution network with a preset operation maintenance period threshold value to obtain an operation maintenance period deviation rate;
Judging whether the deviation rate of the operation and maintenance period is larger than a preset deviation rate threshold value or not;
if the power distribution parameters are greater than or equal to the preset value, adjusting physical power distribution network facilities and optimizing a power distribution network system;
If the value is smaller than the preset value, no adjustment is needed.
8. The power distribution network operation and maintenance system based on digital twin is characterized by comprising a memory and a processor, wherein the memory comprises a power distribution network operation and maintenance method program based on digital twin, and the power distribution network operation and maintenance method program based on digital twin realizes the following steps when being executed by the processor:
Acquiring physical distribution network structure composition data, operation environment data and power fixing equipment data, acquiring a distribution network twin body through a preset distribution network digital twin model, and displaying the distribution network twin body and distribution network physical parameters;
Processing according to the physical distribution network structure composition data, the operation environment data and the power fixed equipment data through a preset facility life cycle prediction model to obtain a distribution network aging rate index;
Extracting power distribution network power distribution data, corresponding regional power demand data, load mutation monitoring data, electric energy parameter monitoring data and historical fault log data according to the power distribution network twin body;
Processing the power distribution network power distribution data and the corresponding regional power demand data through a preset power distribution network power monitoring model to obtain a power utilization abnormal index;
Processing the load mutation monitoring data, the electric energy parameter monitoring data and the historical fault log data through a preset power distribution network operation evaluation model to obtain a power distribution network anti-interference capability index;
Combining the anti-interference capacity index of the power distribution network according to the ageing rate index and the abnormal power utilization index of the power distribution network, and processing the power distribution network through a preset power distribution network operation maintenance model to obtain a power distribution network operation maintenance period index;
Comparing the operation maintenance period index of the power distribution network with a preset operation maintenance period threshold value to obtain an operation maintenance period deviation rate, judging whether the operation maintenance period deviation rate is larger than the preset deviation rate threshold value, and if so, adjusting physical power distribution network facilities and optimizing a power distribution network system.
9. The operation and maintenance system for a power distribution network based on digital twin according to claim 8, wherein the obtaining physical power distribution network structure composition data, operation environment data and power fixing equipment data, obtaining a power distribution network twin through a preset power distribution network digital twin model, and displaying the power distribution network twin and physical parameters of the power distribution network, comprises:
acquiring physical distribution network structure composition data, operation environment data and power fixing equipment data;
the distribution network structure composition data comprise overhead line vein data, cable tower specification data, isolation equipment characteristic data and compensation equipment characteristic data;
The operation environment data comprise power distribution network geographical position data, temperature and humidity data and wind power direction data;
The power fixing equipment data comprise high-voltage low-voltage equipment data, power generation equipment performance data and power system accessory matching data;
and obtaining a power distribution network twin body and displaying physical parameters of the power distribution network twin body and the power distribution network by presetting a power distribution network digital twin model according to the overhead line context data, the cable tower specification data, the isolation equipment characteristic data, the compensation equipment characteristic data, the power distribution network geographic position data, the temperature and humidity data, the wind power direction data, the high-voltage low-voltage equipment data and the power generation equipment performance data and the power system accessory matching data.
10. A computer readable storage medium, characterized in that a digital twin based power distribution network operation and maintenance method, system and medium program are included in the computer readable storage medium, which when executed by a processor, implement the steps of the digital twin based power distribution network operation and maintenance method according to any of claims 1 to 7.
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| CN202410327913.8A CN117933576B (en) | 2024-03-21 | 2024-03-21 | Power distribution network operation and maintenance method, system and medium based on digital twin |
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| CN202410327913.8A CN117933576B (en) | 2024-03-21 | 2024-03-21 | Power distribution network operation and maintenance method, system and medium based on digital twin |
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| CN115544819A (en) * | 2022-12-06 | 2022-12-30 | 网思科技股份有限公司 | Digital twin modeling method, system and readable storage medium for maintenance station |
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| CN117349102A (en) * | 2023-12-05 | 2024-01-05 | 网思科技股份有限公司 | Digital twin operation and maintenance data quality inspection method, system and medium |
| CN117394535A (en) * | 2023-10-20 | 2024-01-12 | 国网安徽省电力有限公司合肥供电公司 | Digital twin system of AC/DC hybrid power distribution network |
| CN117554746A (en) * | 2023-11-16 | 2024-02-13 | 贵州电网有限责任公司 | Power distribution network fault diagnosis system based on digital twin |
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| CN115759378A (en) * | 2022-11-11 | 2023-03-07 | 黄河万家寨水利枢纽有限公司 | Dam safety analysis early warning system and method based on digital twins |
| CN115907542A (en) * | 2022-11-29 | 2023-04-04 | 国网北京市电力公司 | Substation secondary equipment digital evaluation method and system based on knowledge graph |
| CN115544819A (en) * | 2022-12-06 | 2022-12-30 | 网思科技股份有限公司 | Digital twin modeling method, system and readable storage medium for maintenance station |
| CN117394535A (en) * | 2023-10-20 | 2024-01-12 | 国网安徽省电力有限公司合肥供电公司 | Digital twin system of AC/DC hybrid power distribution network |
| CN117554746A (en) * | 2023-11-16 | 2024-02-13 | 贵州电网有限责任公司 | Power distribution network fault diagnosis system based on digital twin |
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