KR20230033431A - Automatic Fault Analysis Device and Method for Electric Facilities - Google Patents

Abstract

The present invention relates to an automatic failure analysis device and method for power facilities, which collects data based on failure records of power facilities, statistically analyzes and diagnoses the occurrence and causes of failures based on machine learning, and automatically By generating a report on data, accurate and consistent failure analysis is possible through the process of data analysis and learning, reports of uniform quality can be automatically generated, and work convenience is improved and costs are reduced. there is.

Description

Automatic Fault Analysis Device and Method for Electric Facilities

The present invention relates to an automatic failure analysis device and method for analyzing failures by collecting data on power equipment of a substation and automatically generating a report.

A fault recording device is connected to a plurality of power facilities provided in a substation, and when an abnormality occurs in a power facility, data therefor is recorded and stored.

The fault recording device automatically records faults and fluctuations in the power system. Fault recorder is mandatory for substations with 345kV or higher, and is mandatory for 154kV substations with four or more transmission lines, if fault recorder is not installed in nearby substations. It is installed in places where recordable digital protection relays are not installed and places where installation of power exchanges is requested.

As in Republic of Korea Patent Publication No. 10-2014-0032846, when an abnormal state is determined through monitoring of facilities, a failure can be recorded.

The failure recording device receives analog data when an event occurs from the power facility, and outputs data in a predetermined format from 1 second before the failure to about 5 seconds after the failure, as well as data for zero-phase current and zero-phase voltage. do.

The fault recording device is configured to store fault analysis data through a corresponding device for all faults occurring in the power system and to output the data.

However, the failure recording device includes a function of recording and outputting data, but does not include an analysis function.

Analyzing the failure data, organizing the contents and preparing a report is performed by human resources.

Although the fault recording device outputs data, manpower must directly access the fault recording device to extract data, and using the outputted fault data to determine the cause or problem of the failure depends on the manpower input. do.

Analysis and judgment on failure data, as well as matters related to report writing, may vary depending on the work skills and know-how of the personnel involved. Accordingly, even in the case of the same failure, the content of the report is different depending on the person in charge, resulting in a difference in the quality of the report.

In addition, since manpower must be put in to write a report even for a simple failure of power facilities, a lot of manpower is put in, and the work load and cost accordingly increase.

Accordingly, there is a need for a plan that can minimize the input of manpower and easily manage failures for general simple failures other than major failures such as power outages.

In addition, there is a need for a method to automatically analyze data and create a report for the collected data.

Republic of Korea Patent Publication No. 10-2014-0032846

The present invention was created by the above necessity, and provides an automatic failure analysis device and method for collecting and analyzing data based on failure records of power equipment and automatically generating and registering a failure report. But it has a purpose.

An object of the present invention is to provide an automatic fault analysis device and method for power equipment that statistically analyzes and diagnoses the occurrence and cause of faults by analyzing data based on machine learning.

In order to achieve the above object, the automatic failure analysis device for power equipment according to the present invention collects failure data for the power equipment from a failure recording device connected to at least one power equipment, and in response to the failure data, a data collection unit that collects special data related to power facilities; an analyzer configured to analyze the failure data and the special data based on data learned based on machine learning; a diagnosis unit for diagnosing a failure of the power facility based on the analysis result of the analysis unit; and a report generating unit generating a report in a predetermined format based on the analysis result and the failure diagnosis result. includes

The data collection unit corresponds to the failure data, weather information, external image data or internal image data of the place where the power facility is installed, data on other power facilities connected to the power facility, protective relays and substations, and the power It is characterized in that at least one of facility inspection history, system diagram, and substation data is collected as the special data.

The analysis unit may accumulate and analyze failure waveforms of the failure data, and perform failure analysis on the failure data and the special data.

The diagnosis unit processes the analysis result, classifies the operation of the power facility in which a failure has occurred into normal operation, malfunction, and non-operation, classifies the date and time of the failure, the equipment in which the failure occurred, the type of equipment, the location of the failure, and the cause of the failure. It is characterized by diagnosing a failure.

The report generating unit may generate the report by calling data to be included in the report from the analysis result and the diagnosis result based on a report format of a predetermined format and arranging them in a designated location.

The report generation unit includes at least one of title, operation date, operation facility, system diagram for operation facility, protection relay operation details, weather, failure time, failure reason, failure location, failure details, failure data analysis result, and other information. It is characterized by generating the report by doing.

The automatic failure system of a power facility of the present invention includes at least one power facility; a failure recording device that is connected to the power facility and records failure data of the power facility; a management device that controls and manages the operation of the power facility; a security device for photographing the place where the power facility is installed; a meteorological server providing weather information when a failure of the power facility occurs; and collecting failure data from the failure recording device, collecting special data on the failure of the power facility from the management device, the security device, and the weather server, analyzing and diagnosing the data, and determining the failure of the power facility. An analysis device that generates a report on; includes

An operation method of an automatic power equipment failure analysis apparatus according to the present invention includes the steps of collecting failure data for a power equipment in which a failure occurs from a failure recording device when a failure occurs in a power equipment; Corresponding to the failure data, collecting special data related to the power facility; Analyzing the failure data and the special data based on data learned based on machine learning; Diagnosing a failure of the power facility based on the analysis result; and generating a report in a predetermined format based on the analysis result and diagnosis result. includes

storing the report in a database; and transmitting and registering the report to a management device controlling the power facility or a server of a network including the management device. more includes

In the step of collecting the special data, in response to the failure data, weather information, external image data or internal image data of the place where the power facility is installed, other power facilities connected to the power facility, protection relays, and substations Data, and at least one of the inspection history of the power facility, a system diagram, and substation data are collected as the special data.

The collecting of the special data includes a management device for controlling and managing the operation of the power facility, a security device for photographing the place where the power facility is installed, and a meteorological server that provides weather information when a failure of the power facility occurs. and receiving the special data corresponding to the failure data from at least one of the above.

The diagnosing step may include processing the analysis result and classifying the operation of the power facility in which a failure has occurred into normal operation, malfunction, and non-operation; and diagnosing the failure by classifying the date and time of the failure, the equipment where the failure occurred, the type of equipment, the location of the failure, and the cause of the failure. more includes

The generating of the report may include generating the report by calling data to be included in the report from the analysis result and the diagnosis result based on a report format of a predetermined format and arranging them in a designated location.

According to one aspect, the automatic failure analysis device and method for power equipment according to the present invention automatically analyzes failures and generates reports, thereby enabling accurate and consistent failure analysis through data analysis and learning processes, Reports of uniform quality can be automatically generated.

According to one aspect of the present invention, by automatically analyzing data and generating a report, it is possible to quickly analyze failures and respond quickly to failures, stably operate power facilities, and easily operate power facilities. can manage

The present invention can solve the inconvenience caused by data collection and prevent the input of excessive manpower, thereby improving work convenience and reducing costs.

1 is a diagram schematically showing the configuration of a system including an automatic failure analysis device for a power facility according to an embodiment of the present invention.
2 is a block diagram briefly showing the configuration of an automatic failure analysis device for power facilities according to an embodiment of the present invention.
3 is a flowchart illustrating an operating method of an automatic failure analysis device for a power facility according to an embodiment of the present invention.
4 is an exemplary diagram illustrating a report automatically generated by an automatic failure analysis apparatus for power facilities according to an embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings. In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, definitions of these terms will have to be made based on the content throughout this specification.

1 is a diagram schematically showing the configuration of a system including an automatic failure analysis device for a power facility according to an embodiment of the present invention.

As shown in FIG. 1, the analysis device 50 in the present invention includes a substation 10 including a plurality of power facilities 11 and 12, a management device 20, a fault recording device 30, and a security device. 40, the terminal 60 and the meteorological server 70 are connected to analyze failures of a plurality of power facilities 11 and 12 and generate reports.

The analysis device 50 may be configured as a system by being connected to the power facilities 11.12, the management device 20, and the failure recording device 30.

It is installed in power facilities such as a plurality of power facilities (11, 12) substation (10). The power facilities 11 and 12 are devices related to power transmission or distribution, and include, for example, transformers and protective relays.

The management device 20 collects data of the power facilities 11 and 12 for each substation 10 and monitors its operation. The management device 20 may be configured in units of a certain area and may further include a management server (not shown) that comprehensively manages a plurality of areas.

The security device 40 includes an imaging device for photographing the exterior and interior of the substation 10 and an access device for managing entry and exit of the substation 10 . The security device 40 transmits the video outside the substation, the video inside the substation, and the entry/exit records by date according to the request of the analysis device 50.

The fault recording device 30 is connected to individual power facilities or a plurality of power facilities in the substation 10, collects data of each power facility, and analyzes the data to determine whether or not there is a failure.

The failure recording device 30 records and stores data on the power facility when determining a failure.

The fault recording device 30 periodically communicates with the analysis device 50 to transmit data, and transmits data to the analysis device 50 when a specific event, for example, a power failure occurs.

The analysis device 50 collects data on the power facility in which a failure occurs from the failure recording device 30, analyzes the failure, diagnoses the degree and cause of the failure, and prepares a report on the failure.

The analysis device 50 collects and analyzes not only the data of the fault recording device 30, but also data related to the corresponding power facility from the management device 20 or power facilities of other substations through a network.

The analyzer 50 diagnoses failures by analyzing not only failures of the power facility itself, but also relationships with other power facilities and problems on the network.

The analysis device 50 collects the entry and exit details of the substation 10 of the security device 40, image data of the inside and outside of the substation, and weather information from the weather server 70, and measures to be taken for power facilities, manpower It is possible to diagnose the cause of failure based on environmental factors such as change in settings, lightning strikes, or strong winds caused by weather.

The analysis device 50 analyzes data to classify failures, learns data based on machine learning, and analyzes failure data and special data based on the learned data to derive information about causes of failures or related facilities, , and reports are automatically generated based on this.

The analysis device 50 transmits and registers the generated report to the management device 20 or a separate management server (not shown) through a network. In addition, the analysis device 50 may transmit the generated report to a preset terminal 60 .

The analysis device 50 may store the generated report in a database (DB) (not shown).

2 is a block diagram briefly showing the configuration of an automatic failure analysis device for power facilities according to an embodiment of the present invention.

As shown in FIG. 2, the analysis device 50 includes an input/output unit 170, a communication unit 180, a data unit 160, a data collection unit 120, an analysis unit 130, a diagnosis unit 140, It includes a report generator 150 and a control unit 110 that controls overall operations.

The input/output unit 170 includes an input means for inputting a signal for changing settings according to data analysis and an output means including a display for displaying the progress of data analysis and outputting a generated report.

The communication unit 180 includes a plurality of communication modules and transmits and receives data in a wired or wireless communication method.

The communication unit 180 communicates with the management device 20, the failure recording device 30, the security device 40, and the weather server 70 to receive data. The communication unit 180 transmits the report generated in response to the control command of the control unit 110 to the management device 20, the management server or the terminal 60.

When the control unit 110 changes settings for failure analysis in response to a signal input through the input/output unit 170 and stores the generated data in the data unit 160, the data transmitted and received through the communication unit 180 manage

The data collection unit 120 collects failure data from the failure recording device 30 at predetermined intervals.

The data collection unit 120 requests special data from the management device 20, the security device 40, and the weather server 70 based on the received data. The data collection unit 120 collects special data related to the failed power facility based on the failure data of the failure recording device 30 .

The data collection unit 120 receives the data of other substations, data on power facilities, and inspection history of power facilities necessary for failure analysis from the management device 20, and records images and access records of the inside or outside of the substation as a security device. It is requested and received in (40), and weather information can be requested as special data from the weather server (70).

For example, the data collection unit 120 may receive information of a lightning arrester counter to determine whether a lightning arrester is operating in case of a lightning failure, and request a lightning occurrence area and time based on weather information of a weather server.

In the case of a mixed failure, the data collection unit 120 checks whether there is a strong wind based on weather information, requests and receives internal and external images of the substation from the security device 40, and receives data from other adjacent substations. It is possible to check the operation of the protection relay.

The data collection unit 120 may receive a management server (not shown), digital substation data, and receive an internal image of the substation from the security device 40 when there is a failure inside the substation.

Also, the data collecting unit 120 classifies the collected data.

The data collection unit 120 classifies each data according to a predetermined criterion and sets and manages groups. For example, the data collection unit 120 may classify the received data according to the type of power facility, the type of failure, the location of the power facility, and the like.

In addition, the data collection unit 120 classifies data received from the management device 20, the security device 40, and the weather server 70 based on the data of the failure recording device 30.

For example, the data collection unit 120 includes failure data of the first power facility 11, data of the substation 10 in which the first power facility 11 is installed, and a management device 20 for the first power facility 11. ), security data on the date the first power facility failed, and weather information on the date the first power facility failed.

The analysis unit 130 analyzes the data of the failure recording device 30 and analyzes related data collected in relation to the failure data, that is, weather information, image data, data of surrounding power facilities, and the like.

The analysis unit 130 analyzes data by applying a machine learning technique. For example, the analysis unit 130 may use Python as a data analysis engine.

The analysis unit 130 classifies and learns normal data and failure data, and analyzes failure data collected from the failure recording device and data related thereto based on this. The analyzer 130 accumulates and analyzes the waveforms of the collected data, classifies the fault waveform and the normal waveform according to the facility, and analyzes the related data to analyze the failure of the power facility.

The controller 110 may request additional analysis according to the type of failure. The controller 110 may output a message for additional analysis through the input/output unit 170 .

The diagnosis unit 140 processes the analysis result of the analysis unit 130, and diagnoses the operation of the power facility by classifying it into one of normal operation, malfunction, and non-operation based on the analysis result. Floating means it didn't work.

Based on the failure analysis result, the diagnosis unit 140 diagnoses the failure by classifying the date and time of the failure, the equipment in which the failure occurred, the type of equipment, the location of the failure, and the cause of the failure.

The report generation unit 150 automatically generates a report in a predetermined format based on the analysis result and the diagnosis result of the failure.

The report generation unit 150 is based on the operation result, the instantaneous current or voltage transition point at the time of failure, the new effective voltage and current, maximum current, and minimum current in 1.5 cycles before and 1.5 cycles after the failure occurred based on the time of failure. , it generates a report including input elements, failure time, failure reason, failure location, etc.

The report generating unit 150 generates a report by calling data to be included in the report from analysis results and diagnosis results and writing them in a designated location based on a designated report form.

The report generation unit 150 may generate a report by selecting one of a plurality of report formats according to settings. The report generation unit 150 may select a report format according to the type of power facility.

The controller 110 outputs the generated report through the input/output unit 170 .

The control unit 110 transmits the generated report to the management device 20 through the communication unit 180 or to a designated terminal 60 .

In addition, the controller 110 may access a designated server (not shown) such as a management system through the communication unit 180 to register a report.

3 is a flowchart illustrating an operating method of an automatic failure analysis device for a power facility according to an embodiment of the present invention.

As shown in FIG. 3, when an event occurs in any one of the plurality of power facilities 11 and 12 of the substation 10 (S310), the failure recording device 30 determines whether there is a failure based on the data and In the event of a failure, data on the power facility is stored.

The analysis device 50 receives the failure data of the power facility from the failure recording device 30 (S320).

Based on the failure data, the analysis device 50 collects special data related to the power facility from the management device 20, the security device 40, and the weather server 70 (S330).

For example, the analysis device 50 responds to the failure data of the faulty facility, data on other nearby power facilities and adjacent protection relays, weather information before and after the failure, video data of the security device, etc. Collected as special data.

The analysis device 50 analyzes the failure waveform of the collected failure data and analyzes the special data related to the failure (S340 and S350).

The analysis device 50 classifies the failure data and analyzes the failure of new failure data received through learning of each normal data and failure data (S360).

The analysis device performs learning on failure data based on machine learning. The analysis device 50 may derive a change trend of data, a pattern of data, and the like through learning.

Based on the analysis result of the failure data, the analysis device 50 diagnoses the time and date of the failure, the cause of the failure, the state of the power equipment, the details of the failure, and the like with respect to the abnormality and failure of the power facility.

The analysis device 50 diagnoses the state of the power facility by processing the analysis result (S370).

The analyzer 50 determines that the power facility is in any one state of normal, malfunctioning, or non-operating, and diagnoses the failure by processing data on the malfunction or non-operation.

The analysis device 50 generates and stores a report in a certain format based on the analysis result and the failure diagnosis result (S380). The analysis device 50 may store the report in the database (DB).

The analysis device 50 transmits the generated report to the management device 20 or the terminal 60 (S390). In addition, the analysis device 50 may register a report in a server connected to the management device.

4 is an exemplary diagram illustrating a report automatically generated by an automatic failure analysis apparatus for power facilities according to an embodiment of the present invention.

As shown in FIG. 4, the report generation unit 150 generates a report in a specified format.

The format of the report can be changed according to the type of power facility and user settings. In addition, when a plurality of report formats are provided, the report generation unit 1500 may generate a report by selecting one according to an input signal of the input/output unit 170 .

The report generation unit 150 includes the title 201, operation date and time and equipment 202, system diagram for operating equipment 203, protective relay operation details 204, weather, failure details 205, failure data analysis results ( 206) and other information (208) are included.

The report generation unit 150 is based on the operation result, the instantaneous current or voltage transition point at the time of failure, the new effective voltage and current, maximum current, and minimum current in N cycles before and N cycles after the failure, based on the time of failure. At least one of , and automatic input may be further included. For example, the report generating unit 150 may include data before and after 1 to 2 cycles based on the time of failure, depending on the type of failure equipment or cause of failure.

The report generation unit 150 generates a report by arranging and writing the data to be included in each specific location based on a designated format.

Although the present invention has been described with reference to the embodiments shown in the drawings, it should be noted that this is only exemplary and various modifications and equivalent other embodiments are possible from those skilled in the art in the art to which the technology pertains. will understand Therefore, the true technical protection scope of the present invention should be defined by the claims below.

10: substation 11, 12: power facility
20: management device 30: failure recording device
40: security device 50: analysis device
60: terminal 70: weather server
110: control unit 120: data collection unit
130: analysis unit 140: diagnosis unit
150: report generation unit 160: data unit
170: input/output unit 180: communication unit

Claims (17)

a data collection unit that collects failure data for the power facility from a failure recording device connected to at least one power facility, and collects special data related to the power facility in response to the failure data;
an analyzer configured to analyze the failure data and the special data based on data learned based on machine learning;
a diagnosis unit for diagnosing a failure of the power facility based on the analysis result of the analysis unit; and
a report generating unit generating a report in a predetermined format based on the analysis result and the failure diagnosis result; Automatic failure analysis device for power facilities including a. According to claim 1,
The data collection unit corresponds to the failure data, weather information, external image data or internal image data of the place where the power facility is installed, data on other power facilities connected to the power facility, protective relays and substations, and the power An automatic failure analysis device for power facilities, characterized in that for collecting at least one of the inspection history, system diagram, and substation data of the facility as the special data. According to claim 1,
The data collection unit may include at least one of a management device that controls and manages the operation of the power facility, a security device that photographs the location where the power facility is installed, and a weather server that provides weather information when a failure of the power facility occurs. Automatic failure analysis device for power equipment, characterized in that for receiving the special data corresponding to the failure data from. According to claim 1,
The analysis unit accumulates and analyzes failure waveforms of the failure data, and performs failure analysis on the failure data and the special data. According to claim 1,
The diagnosis unit processes the analysis result, classifies the operation of the power facility in which a failure has occurred into normal operation, malfunction, and non-operation, classifies the date and time of the failure, the equipment in which the failure occurred, the type of equipment, the location of the failure, and the cause of the failure. An automatic failure analysis device for power facilities, characterized in that for diagnosing failures. According to claim 1,
The report generator generates the report by calling the data to be included in the report from the analysis result and the diagnosis result based on a report form of a predetermined format and placing it in a designated location to generate the report. According to claim 4,
The report generation unit includes at least one of title, operation date, operation facility, system diagram for operation facility, protection relay operation details, weather, failure time, failure reason, failure location, failure details, failure data analysis result, and other information. Automatic failure analysis device for power facilities, characterized in that for generating the report by doing. According to claim 7,
The report generating unit shows operation results, instantaneous current or voltage transition point at the time of failure, voltage and current, maximum current, minimum current, and automatic input in N cycles before and after the failure based on the time of failure. Automatic failure analysis device for power facilities, characterized in that for generating the report further comprising at least one of. at least one power utility;
a failure recording device that is connected to the power facility and records failure data of the power facility;
a management device that controls and manages the operation of the power facility;
a security device for photographing the place where the power facility is installed;
a meteorological server providing weather information when a failure of the power facility occurs; and
Failure data is collected from the failure recording device, and special data on the failure of the power facility is collected from the management device, the security device, and the meteorological server, and the data is analyzed and diagnosed to determine the failure of the power facility. An analysis device that generates a report; Automatic failure system of power equipment including. Collecting failure data for the power facility in which the failure occurred from a failure recording device when a failure occurs in the power facility;
Corresponding to the failure data, collecting special data related to the power facility;
Analyzing the failure data and the special data based on data learned based on machine learning;
Diagnosing a failure of the power facility based on the analysis result; and
generating a report in a predetermined format based on analysis results and diagnosis results; Method of operating a power facility automatic failure analysis device comprising a. According to claim 10,
storing the report in a database; and
transmitting and registering the report to a management device controlling the power facility or a server of a network including the management device; Method of operating a power facility automatic failure analysis device further comprising a. According to claim 10,
The step of collecting the special data is,
In response to the failure data, weather information, external image data or internal image data of the place where the power facility is installed, data on other power facilities connected to the power facility, protective relays and substations, and inspection history of the power facility A method of operating an automatic failure analysis device for power equipment, characterized in that for collecting at least one of a system diagram and substation data as the special data. According to claim 10,
The step of collecting the special data is,
Corresponds to the failure data from at least one of a management device that controls and manages the operation of the power facility, a security device that photographs the location where the power facility is installed, and a meteorological server that provides weather information when the power facility fails. A method of operating a power facility automatic failure analysis device, characterized in that for receiving the special data to do. According to claim 10,
The analysis step is
accumulating and analyzing failure waveforms of the failure data; and
performing failure analysis on the failure data and the special data; Method of operating a power facility automatic failure analysis device further comprising a. According to claim 10,
The diagnosing step is
Processing the analysis result and classifying the operation of the power facility in which a failure has occurred into normal operation, malfunction, and non-operation; and
diagnosing the failure by classifying the date and time of the failure, the equipment where the failure occurred, the type of equipment, the location of the failure, and the cause of the failure; Method of operating a power facility automatic failure analysis device further comprising a. According to claim 10,
To generate the report,
Based on a report format of a predetermined format, the report is generated by calling data to be included in the report from the analysis results and diagnosis results and arranging them in a designated location. According to claim 10,
To generate the report,
The report including at least one of title, operation time, operation facility, system diagram for operation facility, protection relay operation details, weather, failure time, failure reason, failure location, failure details, failure data analysis result, and other information. An operating method of an automatic failure analysis device for power facilities, characterized in that for generating.

Images