KR101778102B1 - Method for providing graphic user interface dedicated to power facility comprehensive preventive diagnosis and power facility comprehensive preventive diagnosis system - Google Patents

Abstract

The present invention relates to a method for providing a graphic user interface for comprehensive preventive diagnosis of electric power facility and a system for comprehensive preventive diagnosis of electric power facility, the system providing a graphic user interface for comprehensive preventive diagnosis of electric power facility by using the same. By displaying a daily diagnosis screen representing a value which measures a plurality of diagnosis components for preventing breakdown of a plurality of electronic power devices of electric power facility for at least one day in units of at least one hour and an hourly diagnosis screen representing a value which measures a plurality of diagnosis components for at least one hour in units of at least one minute according to selection of a user while switching over the diagnosis screens, the user can understand a change trend of each of the plurality of measured values of the diagnosis components while comparing the change trend among the plurality of diagnosis components, therefore, states of the plurality of electronic power devices of the electric power facility can be accurately diagnosed by combining the states.

Description

TECHNICAL FIELD [0001] The present invention relates to a method for providing a graphical user interface for a comprehensive preventive diagnosis of a power facility, and a comprehensive preventive diagnosis system for a power facility,

A method for providing a graphical user interface for comprehensive prevention diagnosis of a power facility, and a power facility comprehensive prevention diagnosis system for providing a graphical user interface for comprehensive prevention diagnosis of power facilities using the method.

Power plants such as power plants and substations include various power devices such as gas insulated switchgear (GIS), main transformer (MTR), and generator. For various power equipment of power facilities, several sensors are installed in each of them to measure the status of each power equipment, and a diagnostic program is installed to prevent the failure of each power equipment individually by using sensor output signals . For example, Korean Patent No. 10-1235868, entitled " Remote Management Method for GIS Prevention Diagnosis System ", extracts learning data on noise patterns and partial discharges of each site from a central management server and learns a diagnosis engine of a local server Discloses a remote management method for a GIS preventive diagnostic system that can improve the diagnostic engine of a local server.

As described above, since the conventional technology operates a diagnostic program for preventing a failure of each of a plurality of power devices constituting a power facility, a program for diagnosing the status of each of the power devices is different and constitutes a power facility There has been a problem in that it is impossible to accurately diagnose the states of a plurality of power devices. There has been a problem that an error may occur in the diagnosis of the state of the power equipment when the state of the power equipment is diagnosed individually due to the characteristics of the plurality of power equipment connected to each other in one power equipment.

It is possible to grasp the change trend of each of the measurement values of the plurality of diagnostic elements for preventing the failure of the plurality of power devices of the power facility while comparing the plurality of diagnostic factors with each other and also to perform macroscopic observation and microscopic observation So as to provide a graphical user interface capable of precisely and precisely diagnosing the power equipment precisely. It is also an object of the present invention to provide a partial discharge remote diagnosis system that provides a graphical user interface for comprehensive prevention diagnosis of power facilities using the method. The present invention is not limited to the above-described technical problems, and another technical problem may be derived from the following description.

According to an aspect of the present invention, there is provided a method for providing a graphical user interface for a comprehensive preventive diagnosis of a power facility, comprising: measuring values of at least one day of a plurality of diagnostic elements for preventing failure of a plurality of power devices of the power facility, Displaying a daily diagnostic screen indicating the diagnosis result; And an icon indicating time-based diagnosis by a user from among a plurality of icons in the daily diagnostic screen, wherein the daily diagnostic screen is configured to perform a time-based diagnostic for displaying values measured for at least one hour or more of the plurality of diagnostic elements, Displaying a daily diagnostic screen, wherein when the user selects an icon representing daily diagnosis from a plurality of icons in the hourly diagnostic screen, the step of displaying the daily diagnostic screen comprises: The daily diagnostic screen is displayed by switching to the daily diagnostic screen.

Wherein the horizontal axis of a part of the daily diagnostic screen represents at least one day of the time period in which the plurality of diagnostic elements are measured and the vertical axis represents the size of the values of the plurality of diagnostic elements, A state display bar is displayed which is moved in a direction intersecting with a graph of each of the measured values of the plurality of diagnostic elements in accordance with a user's adjustment; and when the state display bar stays at one of the horizontal axes, Values of the plurality of diagnostic elements measured at a time corresponding to one of the plurality of diagnostic elements may be displayed at an intersection of the graph of each of the measured values of the plurality of diagnostic elements and the status indicator bar.

Wherein the displaying of the hourly diagnostic screen comprises: when an icon representing the hourly diagnosis is selected by a user from among a plurality of icons in the daily diagnostic screen, Is extended to occupy the entire section of the horizontal axis of a part of the time-dimension diagnostic screen, thereby increasing the time resolution of the measurement values of the plurality of diagnostic elements, .

Wherein the displaying of the daily diagnostic screen comprises: when an icon representing a daily diagnosis is selected by a user from among a plurality of icons in the hourly diagnostic screen, at a certain point on the hourly diagnostic screen, And the time width of the measurement values of the plurality of diagnostic elements is extended by occupying an interval of at least one hour located in the middle of the entire section of the horizontal axis of the partial area of the daily diagnostic screen, The daily diagnostic screen can be switched to the daily diagnostic screen.

A method of providing a graphical user interface for a comprehensive preventive diagnosis of electric power facilities, comprising: when an icon indicating discrimination diagnosis is selected among a plurality of icons in the time-based diagnosis screen by a user, And displaying the discrimination diagnostic screen by switching the measured values to the discriminating diagnostic screen in units of at least one second or more.

Wherein the horizontal axis of a portion of the time-based diagnosis screen represents a time period of at least one hour in which the plurality of diagnostic elements are measured, a vertical axis represents a size of values of the plurality of diagnostic elements, A state display bar is displayed which is moved in a direction intersecting with a graph of each of the measured values of the plurality of diagnostic elements in accordance with a user's adjustment; and when the state display bar stays at one of the horizontal axes, A value obtained by measuring the plurality of diagnostic elements at a time corresponding to one of the plurality of diagnostic elements may be displayed at an intersection of the graph of each of the measured values of the plurality of diagnostic elements and the status indicator bar.

Wherein the step of displaying the discrimination diagnostic screen comprises the steps of: when an icon representing discrimination diagnosis is selected by a user from among a plurality of icons in the hourly diagnosis screen, Is extended to occupy the entire section of the horizontal axis of a partial area of the differential diagnosis screen to increase the temporal resolution of the measurement values of the plurality of diagnostic elements, .

According to another aspect of the present invention, there is provided a partial discharge remote diagnosis system for providing a graphical user interface for a comprehensive preventive diagnosis of a power facility using a method for providing a graphical user interface for the comprehensive preventive diagnosis of power facilities, A plurality of sensors installed at a plurality of points for measuring a plurality of diagnostic elements for preventing failure of the plurality of power devices; A local device for generating detection data representing output signals of the respective sensors by detecting output signals of the plurality of sensors; And a server for providing a graphical user interface displayed according to the method of the first aspect based on the output signal for each sensor indicated by the detection data.

The user has a daily diagnosis screen for displaying values of at least one day measured in units of at least one hour or more of a plurality of diagnostic elements for preventing failure of a plurality of power devices of a power facility and values obtained by measuring a plurality of diagnostic elements for at least one hour or more By selecting and observing any one of the time-based diagnostic screens displayed in units of at least one minute, it is possible to grasp the change trends of the respective measured values of the plurality of diagnostic elements while comparing them among a plurality of diagnostic elements. Thus, the user can observe how an abnormal state of a diagnostic element is transferred to another diagnostic element, and as a result, the state of a plurality of power devices of the power facility can be integrated and diagnosed accurately.

In particular, the user can conveniently navigate back and forth between macroscopic and microscopic observations of multiple diagnostic elements simply by selecting either an icon representing daily diagnosis or an icon representing hourly diagnosis, It is possible to observe precisely how the abnormal state of the electric power equipment of the electric power facility can be accurately diagnosed by observing not only how the abnormal state of the electric power equipment is transferred to the other diagnosis element but also microscopic observation.

FIG. 1 is a block diagram of a power plant comprehensive prevention diagnosis system according to an embodiment of the present invention.
2 is an internal structural view of the power device 100 shown in FIG.
3 is a configuration diagram of the server 10 shown in FIG.
4 is a block diagram of the local device 20 shown in Fig.
5 is a flowchart illustrating a method for providing a graphical user interface according to another embodiment of the present invention.
FIG. 6 is a view showing an example of a daily diagnostic screen displayed according to the embodiment shown in FIG.
FIG. 7 is a view showing an example of a time-based diagnosis screen displayed according to the embodiment shown in FIG.
8 is a diagram showing an example of a classification diagnostic screen displayed according to the embodiment shown in FIG.
9 is a view showing an example of a breaker diagnostic screen in the form of a pop-up window on the diagnosis screen shown in Figs. 6-8.
10 is a view showing an example of a popup window type OLTC diagnostic screen in the diagnostic screen shown in Figs. 6-8.
11 is a view showing an example of a bushing diagnosis screen in the form of a pop-up window on the diagnosis screen shown in Figs. 6-8.
Fig. 12 is a diagram showing an example of a partial discharge diagnosis screen in the form of a popup window on the diagnosis screen shown in Figs. 6-8.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Embodiments of the present invention relate to a method for providing a graphical user interface for a comprehensive preventive diagnosis of electric power facilities and a power equipment total preventive diagnosis system for providing a graphical user interface for comprehensive prevention diagnosis of electric power facilities using the method, A method for providing a graphical user interface for preventive diagnosis can be referred to briefly as a "method for providing a graphical user interface", and a power equipment comprehensive prevention diagnosis system for providing a graphical user interface for comprehensive prevention diagnosis of power facilities using the method , It can be called as "electric power facility comprehensive prevention diagnosis system". Examples of the power facilities below include power generation facilities, transmission facilities, and substation facilities. Examples of such power equipment include a gas insulated switchgear (GIS), a main transformer (MTR) ) And the like.

FIG. 1 is a block diagram of a power equipment total preventive diagnosis system according to an embodiment of the present invention, and FIG. 2 is an internal structure diagram of the power device 100 shown in FIG. Referring to FIG. 1 and FIG. 2, the power plant total preventive diagnosis system according to the present embodiment includes a server 10 installed at a remote location of a plurality of power devices 100 of a power facility, And a plurality of sensors 30 installed at a plurality of points of each of the plurality of power devices 100. [ 2 shows a gas insulated switchgear as an example of the power device 100 and shows a connection between a local device 20 installed at the site of the gas insulated switchgear and a plurality of sensors 30 installed in the gas insulated switchgear Respectively. The number and arrangement of the sensors 30 may be different from the type and structure of the power device 100. For example, the number of the sensors 30 may be different from that of the power device 100, , Size, and the like.

The server 10 serves to provide a graphical user interface displayed in accordance with the method of the embodiment shown in Fig. 5, which will be described below, based on the sensor-specific output signals indicated by the detection data of each local device 20. [ The plurality of local devices 20 are installed in a field of a plurality of power devices 100 distributed in a plurality of areas and each detects an output signal of a plurality of sensors 30 installed in each power device 100 Generates detection data representing output signals for each sensor, and provides the detection data to the server 10. The plurality of sensors 30 are installed at a plurality of points of each power device 100 and sense electromagnetic waves generated at a plurality of points of the power devices 100.

The plurality of sensors 30 may be installed at a plurality of points of the plurality of power devices 100 of the power facility to measure a plurality of diagnostic elements for preventing failure of the plurality of power devices 100, (20). Examples of the sensor 30 used in the present embodiment include a UHF (Ultra High Frequency) sensor for measuring a partial discharge state generated in each of the gas insulated switchgear and main transformer, an insulating gas filled in the gas insulated switchgear SF6 (Sulfur Hexafluoride 6) Pressure sensor for measuring the gas state, temperature sensor for measuring the temperature state of the gas insulated switchgear, current sensor for measuring the breaker state of the gas insulated switchgear, gas state of the main transformer A pressure sensor for measuring, a voltage sensor for measuring the on-load tap changer (OLTC) state of the main transformer, a current sensor for measuring the bushing state of the main transformer, a power sensor .

3 is a configuration diagram of the server 10 shown in FIG. 1, the server 10 shown in FIG. 1 includes a signal analysis unit 11, a diagnosis unit 12, an image generation unit 13, a user interface 14, a database 15, 16). 4 is a block diagram of the local device 20 shown in Fig. Referring to FIG. 4, the local device 20 shown in FIG. 1 is composed of a signal detecting unit 21 and a communication unit 22. The communication units 15 and 22 of the server 10 and the local device 20 can communicate with each other in the network such that the server 10 and the local device 20 can communicate with each other through a network such as the Internet, And performs data conversion according to the Internet protocol. Hereinafter, the description of the embodiments will be described only in terms of reception and transmission over the network in the communication units 15 and 22 in order to prevent redundancy.

The signal detection unit 21 of the local device 20 detects the output signals of the plurality of sensors 30 provided in the plurality of power devices 100, . For example, the local device 20 may display an output signal of a sensor for detecting a partial discharge, which senses an electromagnetic wave generated by the power device 100, as a binary value of the electromagnetic wave sensed by the sensor, The sensor output signal can be generated as "0 ". A weak analog signal of a type that can not be recognized by a computer such as the server 10 or the like is outputted from each sensor 30, the signal detecting unit 21 amplifies the analog signal outputted from the plurality of sensors 30 And converts the data into digital type data that can be recognized by a computer.

The communication unit 22 of the local device 20 transmits detection data generated by the signal detection unit 21 to the server 10 via the network. The communication unit 16 of the server 10 receives detection data representing output signals of each of the plurality of power devices 100 from the local device 20 via the network. In this embodiment, in order to measure a plurality of diagnostic elements for preventing a failure of a plurality of power devices 100 of a power facility, a plurality of sensors 30 for measuring a plurality of diagnostic elements are connected to a plurality of power devices 100 ). For example, when a diagnostic element is in a partial discharge state generated at a specific point of the gas insulated switchgear, a UHF sensor for measuring it may be installed at that point of the gas insulated switchgear.

The signal analyzing unit 11 of the server 10 analyzes the output signals of the respective sensors indicated by the detection data of the local device 20 received by the communication unit 16 so that a plurality of diagnoses And outputs the calculated values to the image generating unit 13. [0050] The signal analyzing unit 11 analyzes the measurement value of each diagnostic element corresponding to the size of the output signal for each sensor indicated by the detection data of the local device 20 received by the communication unit 16 when daily diagnosis is selected by the user Calculate the average over an hour. The image generating unit 13 generates a daily diagnostic screen as shown in FIG. 6 by using an average of the measured values of the diagnostic elements for one hour. In addition, when the time-dependent diagnosis is selected by the user, the signal analysis unit 11 calculates the measurement of each diagnostic element corresponding to the size of the output signal for each sensor indicated by the detection data of the local device 20 received by the communication unit 16 Calculate the average over one minute of the value. The image generating unit 13 generates a time-based diagnostic image as shown in FIG. 7 by using an average of one-minute intervals of the measured values of the diagnostic elements.

In addition, when the discrimination diagnosis is selected by the user, the signal analyzing unit 11 calculates the measurement of each diagnostic element corresponding to the magnitude of the output signal for each sensor indicated by the detection data of the local device 20 received in the communication unit 16 The average of the values for one second is calculated. If the time resolution of the output signal of the sensor is one second, the output signal of each sensor indicated by the detection data of the local device 20 may be output to the image generation unit 13 as it is. The image generating unit 13 generates a discrimination diagnostic screen as shown in FIG. 8 by using an average of the measurement values of the diagnostic elements for one second. The average calculation of the output signals for each sensor as described above is not applied to the sensor for detecting partial discharge. The output signals of the respective sensors for detecting partial discharge are processed in the signal analysis unit 11 and the diagnosis unit 12 as described below, and the measurement values of the diagnostic elements corresponding thereto are generated.

The signal analysis unit 11 of the server 10 analyzes the output signals of the respective sensors for partial discharge detection indicated by the detection data of the local device 20 received by the communication unit 16 in accordance with a phase resolved partial discharge (PRPD) Dimensional graph representing the pattern of the output signal for each sensor for detecting the partial discharge and outputs it to the image generator 13. The partial graph of the partial discharge detected by the detection data of the local device 20 received by the communication unit 16 Dimensional graph representing the pattern of the output signal for each sensor for detecting the partial discharge by analyzing the output signal for each sensor for each partial sensor according to a PRPS (Phase Resolved Pulse Sequence) analysis method and outputs the generated three-dimensional graph to the image generator 13. The image generating unit 13 generates a classification diagnosis screen as shown in FIG. 8 and a partial discharge diagnosis screen as shown in FIG. 12 using the two-dimensional graph and the three-dimensional graph.

Electromagnetic waves generated due to partial discharge at a certain point of the power device 100 are generated by pulses having a sharp rise time of 1 ns or less, which are different from noise, in each cycle of the system AC flowing in the power device 100 And a specific number of pulses are repeatedly generated in a specific pattern in each of the specific phase sections of the pulse train. Accordingly, if the pulse phase, the pulse magnitude, and the pulse frequency of the signal output from each sensor 30 are accumulated in the window corresponding to one cycle over various cycles of the system AC, From this pattern, it is possible to diagnose at which point of the power device 100 the partial discharge has occurred, and to diagnose what type of partial discharge has occurred.

The PRPD method is a technique that allows users to diagnose a partial discharge by providing a graph based on this principle. That is, according to the PRPD analysis, the signal analyzer 11 calculates the pulse phase, the pulse magnitude, and the pulse frequency of the output signal for each sensor for detecting the partial discharge according to the systematic alternating current for each cycle of the systematic current flowing in the power device 100 By accumulating in the window corresponding to the cycle, a two-dimensional graph representing the pattern of the output signal for each sensor for detecting the partial discharge can be generated. The PRPS analysis is a technique for spreading PRPD data on a time axis, and it is possible to diagnose a partial discharge occurring in the power device 100 by analyzing a continuous flow of a partial discharge signal. That is, the signal analyzing unit 12 outputs the pulse phase, the pulse magnitude, and the pulse frequency of the output signal of the sensor 40 as a continuous sequence with respect to time according to the PRPS analysis method, A three-dimensional graph representing a pattern can be generated. The PRPD analysis method and the PRPS analysis method are well known to those having ordinary skill in the art to which this embodiment belongs, so that a detailed description will be omitted.

The diagnosis section 12 of the server 10 diagnoses the partial discharge generated in each power device 100 based on the pattern of the output signal for each sensor for detecting the partial discharge generated by the signal analysis section 11, Diagnostic data indicating whether partial discharges are generated for each sensor for detecting partial discharge of the power device 100 and partial discharge types for each sensor for detecting partial discharge of each power device 100 are generated. Here, the occurrence of partial discharges for each sensor of each power device 100 means whether or not a partial discharge occurs at the installation point of each sensor for detecting partial discharge of each power device 100, The type of the partial discharge for each sensor for detecting the partial discharge of the power device 100 means the type of the partial discharge generated at the installation point of each sensor for detecting the partial discharge of each power device 100.

For example, the diagnosis unit 12 can determine whether partial discharges are generated for each sensor of the power device 100 and partial discharge types for each sensor of the power device 100 using a neural network (not shown) . The neural network can be learned by inputting patterns of each type of signal already known to the input layer of the neural network and inputting the signal type corresponding to each type of pattern inputted to the output layer. The diagnostic unit 12 inputs patterns of output signals of the respective sensors derived by the signal analysis unit 11 to the input layers of the neural networks thus learned and outputs them to the output layers of the neural network, Diagnostic data can be generated by extracting the type of output signal. As the neural network is learned with a larger amount of data, the diagnostic accuracy of the diagnosis unit 12 can be improved.

In addition, the diagnosis unit 12 counts one at a time when it is determined that the partial discharge has occurred at the installation point of the angle sensor for detecting the partial discharge of each power device 100 by using the above-described neural network or the like The number of partial discharges is measured in the manner described above. For example, when a signal corresponding to a partial discharge continues to be output for one hour in a sensor for detecting partial discharge installed at a specific point of a power device, the diagnosis unit 12 determines the number of partial discharges To 60 counts. The image generating unit 13 generates a daily diagnostic screen as shown in FIG. 6 by using the sum of the number of partial discharges for one hour, and generates a daily diagnostic screen as shown in FIG. 6, Create a screen.

The diagnosis section 12 of the server 10 compares a plurality of magnitude sections for each sensor of each power device 100 with an average value of output signals for each sensor calculated by the signal analyzing section 11, The risk of the output signal of each sensor of the device 100, that is, the risk of each diagnostic element. A plurality of magnitude sections for each sensor of each power device 100 are classified into a warning section in which an abnormal state such as a normal section and an arc in an electric power device appears, Lt; / RTI > The risk level of the output signal of each power device 100 for each sensor is determined according to whether the average value of the output signal of each sensor of the power device 100 belongs to which of the three magnitude sections, . The image generating unit 13 generates a daily diagnostic image as shown in FIG. 6, a diagnostic image such as shown in FIG. 7, and the like, as shown in FIG. 6, by using the risk of the output signal for each sensor of each power device 100, A time-based diagnosis screen, and a classification diagnosis screen as shown in FIG. For example, if the risk of a diagnostic element is at risk, the graph of the diagnostic element may be displayed in red.

The image generating unit 13 of the server 10 generates an image representing a graphical user interface for comprehensive diagnosis of power facility facilities and outputs the generated image to the user interface 14 according to the present embodiment. The user interface 14 of the server 10 displays the image input from the image generating unit 13 to provide the user with a graphical user interface for comprehensive diagnosis of power facility according to the present embodiment. The user interface 14 is implemented as a touch screen, thereby providing a graphical user interface capable of intuitive partial discharge diagnosis according to the present embodiment. Alternatively, the user interface 14 may be implemented by a combination of an output device such as a monitor and an input device such as a mouse. The database 15 stores neural network circuits and the like. The image generating unit 13 and the user interface 14 will be described below in detail with reference to FIG.

5 is a flowchart illustrating a method for providing a graphical user interface according to another embodiment of the present invention. Referring to FIG. 5, a method of providing a graphical user interface according to an exemplary embodiment of the present invention includes steps of a server 10 shown in FIGS. 1 and 3 in a time-series manner, And displayed on the user interface 14 of the server 10. Therefore, the contents described above with respect to the server 10 shown in Figs. 1 and 3 are applied to a method of providing a graphical user interface, which will be described below, even if omitted below. The plurality of power devices 100 appearing below may be a gas insulated switchgear, a main transformer, or another type of power device. The plurality of diagnostic elements of the present embodiment can be applied to various types of diagnostic apparatuses such as a partial discharge state of the gas insulated switchgear, a SF6 gas state, a temperature state, a breaker state, a partial discharge state of the main transformer, Other diagnostic factors may also be included.

The image generating unit 13 of the server 10 in step 500 displays an initial diagnosis screen displayed on the user interface 14 when the server 10 starts operating according to the power on of the server 10 And the user interface 14 displays the daily diagnostic screen generated as described above. The initial diagnosis screen may be a time-of-day diagnosis screen or a classification diagnosis screen as described below in addition to the daily diagnosis screen. Hereinafter, the selection of icons, symbols, etc. in the diagnostic screen by the user may be performed by touching the icon displayed on the touch screen by the user when the user interface 14 is implemented by the touch screen, In a case where a combination of an output device such as a monitor and an input device such as a mouse is implemented, the user may place the mouse arrow on the icon displayed on the monitor and click.

If the icon indicating the daily diagnosis is selected by the user among the plurality of icons in the diagnostic screen currently displayed in the user interface 14 of the server 10 in step 511, the process proceeds to step 512. Otherwise, In step 512, the image generator 13 of the server 10 measures the values of at least one day of the plurality of diagnostic elements for preventing the failure of the plurality of power devices 100 of the power facility to one day or less, And the user interface 14 displays the daily diagnostic screen generated as described above. In step 512, the user interface 14 of the server 10 displays the daily diagnostic screen by keeping the daily diagnostic screen as it is when the currently displayed diagnostic screen is the daily diagnostic screen. The image generating unit 13 generates a daily diagnostic screen when the diagnostic screen currently displayed on the user interface 14 is another type of diagnostic screen and the user interface 14 switches the diagnosis screen of the other type to the daily diagnostic screen Thereby displaying a daily diagnostic screen.

FIG. 6 is a view showing an example of a daily diagnostic screen displayed according to the embodiment shown in FIG. In the example shown in Fig. 6, the daily diagnostic screen shows values measured for 6 days in a plurality of diagnostic elements in units of one hour. At the top of the daily diagnosis screen, a "day" icon indicating daily diagnosis, a "hour" icon indicating hourly diagnosis, a "minute" icon indicating discrimination diagnosis, and a "real time" icon indicating real time diagnosis are displayed. On the left and right of these icons are indicated the "Previous" icon indicating the previous diagnosis and the "Next" icon indicating the next diagnosis. The "PRPD / PRPS" icon is displayed at the top left of the daily diagnostic screen.

6 is selected by the user from the plurality of icons in the daily diagnostic screen shown in Fig. 6, the user interface 14 of the server 10 maintains the diagnostic screen shown in Fig. When the user selects the "hour" icon, the user interface 14 of the server 10 switches the daily diagnostic screen shown in FIG. 6 to the hourly diagnostic screen shown in FIG. When the "minutes" icon is selected by the user, the user interface 14 of the server 10 switches the daily diagnostic screen shown in FIG. 6 to the classification diagnostic screen shown in FIG.

The left area of the daily diagnostic screen shown in Fig. 6 is an area for selecting a plurality of diagnostic elements. The area on the right side of the daily diagnostic screen shown in FIG. 6 is an area for displaying the values measured for at least one day in the diagnostic element selected in the left area. In the example shown in Fig. 6, the values measured from July 26 to July 31 are shown. The horizontal axis, a so-called x axis, of the right side of the daily diagnostic screen represents a time interval from at least one day in which a plurality of diagnostic factors were measured, that is, from July 26 to July 31. The vertical axis, Indicates the size of the measured values of the element. The time axis from July 26 to July 31 is displayed on the horizontal axis of the right side of the daily diagnosis screen, and the resolution of the time interval is one hour. That is, in the daily diagnostic screen, the measurement values of a plurality of diagnostic elements can be provided to the user on an hourly basis. Since the unit of each measurement value differs depending on the type of the plurality of diagnostic elements, the unit is staggered every time the measurement value of each diagnostic element is displayed on the vertical axis of the right side area of the daily diagnostic screen.

In this embodiment, there are a plurality of diagnostic fields of the power facility, and at least one diagnostic element of at least one power device 100 of the power facility belonging to each diagnostic field exists. In the example shown in Fig. 6, the partial discharge, SF6 gas, gas, temperature, load, bushing, breaker, and OLTC are displayed in the left area of the daily diagnostic screen as the diagnostic field of the transmission and the transmission facility. "+" Icon and "-" icon are displayed. Each time the user selects a "+" icon in the diagnostic field of one of a plurality of diagnostic fields in the daily diagnostic screen, at least one diagnostic element belonging to the diagnostic field is added one by one. Whenever the user selects an icon "-" in the diagnostic field of any one of a plurality of diagnostic fields in the daily diagnostic screen, at least one diagnostic element belonging to the diagnostic field is removed one by one.

According to the selection of the user, in the example shown in Fig. 6, the partial discharge state at four points of the gas insulated switchgear among the entire diagnostic elements, the SF6 gas state at one point of the gas insulated switchgear, The state of each of the two bushings of the main transformer, the state of each of the three breakers of the gas insulated switchgear, the state of each of the two OLTCs of the main transformer, Is selected. In FIG. 6, CBCM is an abbreviation of "Circuit Breaker Condition Monitoring". In addition, an alarm indicating that the measured value of each diagnostic element indicates at least one abnormal state of a plurality of power devices of the power plant is additionally displayed. Such an alarm can be implemented in various forms such as text, graphics, color, and the like, but is not related to the features of the present embodiment, and is omitted in order to prevent the FIG. 6 from being complicated.

The graph 61 in the right side of the daily diagnostic screen shown in FIG. 6 shows measured values of the temperature state in the bay 1 of the gas insulated switchgear for the first transmission (# 1T / L: Transmission Line) 63 denotes the measured value of the temperature state in the bay 2 of the first transmission gas insulated switchgear and 64 denotes the measured value of the state of the substation of the main transformer The graph shows the measured value of the first bushing state of the main transformer, and the graph shows the measured value of the first bushing state. Shows the measurement value of the SF6 gas state of the dedicated gas insulated switchgear. 67 In the graph, there is a zone where the pressure of the SF6 gas is remarkably lowered and is marked in red to alert the user of the danger.

As described above, the second bushing state of the main transformer is also selected as the diagnostic element, but only the first bushing state shows the measured value. In order to reduce the complexity of the daily diagnostic screen, the measured value is displayed only when the red dot of the graph is clicked by the touch of the touch screen or the arrow of the mouse. The graph 68 in the lower area of the daily diagnostic screen shown in Fig. 6 shows the measured values of the three breaker states installed in the bay 1 of the first transmission gas insulated switchgear. 68 The solid line in the graph indicates the close state of each circuit breaker, and the dotted line indicates the trip state of each circuit breaker. 69 The graph shows the measured values of the two OLTC conditions installed in the main transformer. The OLTC is a type of transformer that can adjust the voltage by tap switching while a load is applied to the transmission and the transformer. The graph shows the voltage rise and fall according to the tap switching of each OLTC.

The bar graph standing vertically in the right area of the daily diagnostic screen shown in FIG. 6 shows the number of partial discharges generated during one hour at each of the four points of the first and second gas isolators, The points are separated by different colors. In the example shown in Fig. 6, a partial discharge occurs at two of four points of the first and second gas-isolating switchgear, one of which is shown in blue and the other in orange have. The ratio of different colors in any one bar graph represents the ratio of the number of partial discharges occurring at different points.

In the right area of the daily diagnostic screen shown in FIG. 6, a status bar bar in the form of a vertical bar graph is displayed which is moved left and right while intersecting the graphs of the values of the plurality of diagnostic factors measured by the user's steering . As shown in FIG. 6, when the status display bar stays on one of the horizontal axes by the user's adjustment, a value obtained by measuring a plurality of diagnostic elements at a time corresponding to a certain point on the horizontal axis on which the status display bar is staying Are displayed at the intersections of the graphs and the status display bars of the values obtained by measuring the plurality of diagnostic elements. According to the example shown in FIG. 6, at the intersection of the status indicator bar 61 graph, the mean value of the temperatures measured in the bay 1 of the first transfer gas insulated switchgear for one hour corresponding to a point on the horizontal axis, Is displayed.

62 to 67 Graph 61 As in the graph, the average value of the diagnostic factors measured during one hour corresponding to one point on the horizontal axis where the status bar is staying at that point is displayed. At the lower end of the status bar, bays 1 and 2 of the first trans- mission gas-insulated switchgear and bays 1 and 2 of the second trans- mission gas-insulated switchgear for one hour corresponding to a point on the horizontal axis, 2 shows the sum of the number of partial discharges generated at the four points in FIG. In the example shown in FIG. 6, a total of 36 partial discharges are generated for one hour corresponding to one point on the horizontal axis where the status indicator bar is staying. As described above, since the diagnosis unit 12 measures the number of partial discharges by counting the number of partial discharges once per minute when detecting the occurrence of partial discharges, the maximum number of partial discharges for each sensor that can occur during one hour is 60.

In this way, the user can move the status bar to the left or right using a touch screen or a mouse, and position the user at a desired date and time, thereby obtaining an average of values measured for a plurality of diagnostic elements during one hour of the work and hour You can easily change the days and hours by moving the status bar to the left or right, so you can instantly see the average of the hourly measurements over multiple dates. Accordingly, the user can grasp the change trends of the respective measured values of the plurality of diagnostic factors by comparing the plurality of diagnostic factors with respect to the time of the various dates, thereby observing how the abnormal state of the diagnostic factors is transferred to the other diagnostic factors And as a result, the state of the plurality of power devices of the power facility can be diagnosed very accurately.

For example, when a partial discharge occurs at a certain point in the gas insulated switchgear, the insulation function gradually decreases before reaching the breakdown at that point. In such a deteriorated process, the pressure of the SF6 gas at that point and the temperature And the load of the power transmission and transmission equipment fluctuates. Since the change of the diagnostic element of any one of the partial discharge state, the SF6 gas state, the temperature state and the load state can be caused by various other causes besides the deterioration of the insulation function, There is a limit to the diagnosis of the condition. According to the present embodiment, since the user can observe the change of the partial discharge state, the SF6 gas state, the temperature state, and the load state at that point while comparing them with each other over time, It is possible to make an accurate diagnosis as to whether or not it is deteriorated.

If the icon indicating the time-based diagnosis is selected by the user among the plurality of icons in the diagnostic screen currently displayed in the user interface 14 of the server 10 in step 521, the process proceeds to step 522; In step 522, the image generator 13 of the server 10 measures the values of the plurality of diagnostic elements for preventing failure of the plurality of power devices 100 of the power facility for at least one hour, , And the user interface 14 displays the generated time-based diagnosis screen. In step 512, the user interface 14 of the server 10 displays the time-by-time diagnosis screen by keeping the time-by-time diagnosis screen as it is when the currently displayed diagnosis screen is the time-by-time diagnosis screen. If the diagnosis screen currently displayed on the user interface 14 is another type of diagnosis screen, the image generating unit 13 generates a time-based diagnosis screen, and the user interface 14 switches the diagnosis screen of the other type to the time- Thereby displaying a time-based diagnosis screen.

As described above, the user has a daily diagnostic screen for displaying values of at least one day of measurements of a plurality of diagnostic elements for preventing the failure of a plurality of power devices of the power facility in units of at least one hour and a plurality of diagnostic elements for at least one hour The user can select and observe any one of the time-based diagnosis screens that display the values in units of one or more minutes, thereby making it possible to grasp the change trends of the measurement values of the plurality of diagnostic elements while comparing them among a plurality of diagnostic elements. Thus, the user can observe how an abnormal state of a diagnostic element is transferred to another diagnostic element, and as a result, the state of a plurality of power devices of the power facility can be integrated and diagnosed accurately.

FIG. 7 is a view showing an example of a time-based diagnosis screen displayed according to the embodiment shown in FIG. In the example shown in FIG. 7, the time-based diagnosis screen displays values measured for one hour for a plurality of diagnostic elements in units of one minute. At the top of the hourly diagnostic screen, the "Daily", "Hour", "Minute", "Realtime", "Previous", "Next" and "PRPD / PRPS" icons are displayed have. At the top of the hourly diagnosis screen, an "avg" icon and a "max" icon are additionally displayed for selecting the size criterion of the partial discharge. When the " avg "icon is selected by the user, the average value of the output signal of the partial discharge measuring sensor is displayed on the time-dependent diagnostic screen, and on the hourly diagnostic screen, The maximum value is displayed.

7 is selected by the user from the plurality of icons in the time-based diagnostic screen shown in Fig. 7, the user interface 14 of the server 10 maintains the diagnostic screen shown in Fig. When the "Sun" icon is selected by the user, the user interface 14 of the server 10 switches the time-based diagnosis screen shown in FIG. 7 to the daily diagnosis screen shown in FIG. When the "minutes" icon is selected by the user, the user interface 14 of the server 10 switches the time-based diagnosis screen shown in FIG. 7 to the classification diagnosis screen shown in FIG.

The left region of the time-based diagnostic screen shown in Fig. 7 is an area for selecting a plurality of diagnostic elements. The right area of the time-based diagnosis screen shown in FIG. 7 is an area for displaying the values measured for at least one hour or more of the diagnostic elements selected in the left area. In the example shown in FIG. 6, values measured from 6:00 on July 26 to July 7, 26 are displayed. The horizontal axis, a so-called x axis, of the right area of the hourly diagnosis screen represents a time interval of at least one hour in which a plurality of diagnostic factors are measured, that is, a time interval from 6:00 on July 26 to 7:00 on July 26, Indicates the magnitude of the measured values of multiple diagnostic factors. On the horizontal axis of the right side of the hourly diagnosis screen, the time interval from 6:00 on July 26 to 7:00 on July 26 is displayed, and the resolution of the time interval is one minute. That is, the measurement values of the plurality of diagnostic elements can be provided to the user on a minute-by-minute basis in the time-based diagnosis screen. Since the units of each measurement value are different according to the types of the plurality of diagnostic elements, the unit is described every time the measurement values of the respective diagnostic elements are displayed around the vertical axis of the right side region of the time-

In the left area of the hourly diagnosis screen shown in Fig. 7, a plurality of diagnostic elements displayed in the left area of the daily diagnostic screen shown in Fig. Accordingly, the description of the plurality of diagnostic elements displayed in the left area of the hourly diagnosis screen shown in Fig. 7 will be replaced with the description of the plurality of diagnostic elements displayed in the left area of the daily diagnostic screen shown in Fig.

7, the graph 71 shows the measured value of the temperature state in the bay 1 of the first transfer gas insulated switchgear, and the graph 72 shows the measured value of the temperature of the bays 1 of the first transfer gas insulated switchgear Lt; RTI ID = 0.0 & 71 Graphs and 72 graphs have overlapping ends. 73 graph shows the measured value of the load condition of the power transmission and distribution equipment in Daegu area, 74 graph shows the measured value of the second bushing condition of the main transformer, and 75 graph shows the measured value of load condition of the transmission and 76 graph shows the measured value of the first bushing state of the main transformer and 77 graph shows the measured value of the SF6 gas state of the first transfer gas insulated switchgear. In the graph, there is a zone where the pressure of SF6 gas is remarkably lowered, and it is marked in red to alert the user of the danger.

The state of each of the first bushing and the second bushing of the main transformer is also selected as the diagnostic element, but the measured value is displayed only when the red dot of the graph is clicked as described above. The status is not displayed because there is no click of the red dot at present. The graph 78 in the lower area of the hourly diagnosis screen shown in Fig. 7 shows the measured values of the three breaker states installed in the bay 1 of the first transmission gas insulated switchgear. 78 The graph is displayed in a single line, indicating that two of the three breakers are at a standstill and there is no signal input from them. 79 The graph shows the measured values of the two OLTC states installed on the main transformer, and shows the voltage rise and fall according to the tap switching of each OLTC.

6, each of the plurality of dot symbols represents a partial discharge occurring for one minute, the height of each dot symbol represents the size of the partial discharge signal corresponding thereto, and the color of each dot symbol is represented by A sensor that detects a corresponding partial discharge, that is, a plurality of diagnostic elements. In the example shown in Fig. 7, a partial discharge occurred at two of four points of the first and second transmission gas-insulated switchgear, one of which was marked in blue and the other was marked in white have. The user can easily grasp the number of such dot symbols and their respective heights to see how long the partial discharge lasted at which point of the gas insulated switchgear. Each time the diagnosis section 12 counts the partial discharges generated in the gas insulated switchgear, one every minute, the image generating section 13 of the server 10 generates one dot symbol corresponding to one minute of partial discharge And the user interface 14 displays the thus generated dot symbol in the right area of the time-dependent diagnostic screen.

A status bar in the form of a vertical bar graph is displayed in the right area of the time-based diagnostic screen shown in FIG. 7, which is moved left and right while crossing the graphs of the values of the plurality of diagnostic factors measured by the user's steering. As shown in FIG. 7, when the status display bar stays at any one point on the horizontal axis by the user's adjustment, a value obtained by measuring a plurality of diagnostic elements at a time corresponding to a certain point on the horizontal axis, Are displayed at the intersections of the graphs and the status display bars of the values obtained by measuring the plurality of diagnostic elements. According to the example shown in FIG. 7, at the intersection of the graph of the status indicator bar 71, the average value of the temperatures measured in the bay 1 of the first transfer gas insulated switchgear for one minute corresponding to one point of the horizontal axis Is displayed.

72 to 77 Graph 71 As in the graph, the average value of the diagnostic factors measured for one minute corresponding to a point on the horizontal axis where the status bar is staying at the corresponding point is displayed. On the other hand, a void discharge of -16 dBm in the bay 1 of the first transfer gas insulated switchgear occurred for one minute corresponding to one point on the horizontal axis where the status bar remained, and a corona discharge of -42 dBm in the bay 2 And noise of -18 dBm was generated in the bay 1 of the second transmission gas-insulated switchgear, which is indicated by the height corresponding to the size in the status bar.

In step 521, if an icon representing a time-based diagnosis is selected by a user among a plurality of icons in the daily diagnostic screen, and the daily diagnostic screen is switched to the hourly diagnostic screen in step 522, the image generating unit 13 ) Extends the interval of at least one hour corresponding to a certain point on the horizontal axis where the status indication bar is staying in the right side area of the daily diagnostic screen to occupy the entire section of the horizontal axis of a partial area of the hourly diagnosis screen, The daily diagnostic screen is switched to the hourly diagnostic screen in such a manner that the time resolution of the daily diagnostic screen is increased. In the example shown in FIG. 7, the image generating unit 13 of the server 10 expands the one-hour interval corresponding to one point on the horizontal axis where the status display bar is staying in the right area of the daily diagnostic screen, Of the horizontal axis. That is, the one-hour interval of the horizontal axis of the daily diagnostic screen becomes the entire interval of the horizontal axis of the hourly diagnostic screen.

In this way, the user can move the status display bar to the right and left by using a touch screen or a mouse, and position the desired status in a desired minute of the day or time, thereby measuring a plurality of diagnostic factors And can easily change a day or a few minutes of a day while moving the status display bar to the left or to the right to instantly grasp the average of the hourly and minutely measured values. The user observes the change trends of the respective measurement values of the plurality of diagnostic elements by comparing the plurality of diagnostic factors with each other for each day of the day through the daily diagnostic screen, and if the user wishes to observe the change trend of a certain time period in detail, It is possible to grasp the change trend of each of the measurement values of the plurality of diagnostic elements by comparing the plurality of diagnostic elements with the distinction of the current time and the current state of the status indicator bar.

Gas insulated switchgear, main transformer, etc. Are very irregular, and because of the small differences in their causes, it is very difficult to understand the relationship between multiple diagnostic factors by comparing measured values among multiple diagnostic factors. However, careful analysis of the measurement values of each diagnostic factor is also very important. According to the present embodiment, the user can conveniently navigate back and forth between macroscopic and microscopic observations of a plurality of diagnostic elements simply by selecting either "one" icon and " It is possible to observe precisely how the abnormality of the diagnostic element is transferred to the other diagnostic element as well as diagnose the cause of the abnormality of the plurality of power devices of the power facility with microscopic observation.

If the icon indicating discrimination diagnosis is selected by the user among the plurality of icons in the diagnostic screen currently displayed in the user interface 14 of the server 10 in step 531, the process proceeds to step 532; In step 532, the image generator 13 of the server 10 measures values of at least one minute of the plurality of diagnostic elements for preventing failure of the plurality of power devices 100 of the power facility to one minute or less, And the user interface 14 displays the discrimination diagnostic screen thus generated. In step 532, the user interface 14 of the server 10 displays the classification diagnosis screen by keeping the classification diagnosis screen as it is when the currently displayed diagnostic screen is the classification diagnosis screen. The image generating unit 13 generates a classification diagnostic screen when the diagnostic screen currently displayed on the user interface 14 is another type of diagnostic screen and the user interface 14 switches the diagnostic screen of the other type to the classification diagnostic screen Thereby displaying the discrimination diagnostic screen.

8 is a diagram showing an example of a classification diagnostic screen displayed according to the embodiment shown in FIG. In the example shown in Fig. 8, the discrimination diagnostic screen shows values measured for one minute of a plurality of diagnostic elements in units of one second. At the middle height of the discrimination diagnosis screen, there are a "Day" icon, a "City" icon, a "Minute" icon, a "Realtime" icon, a "Previous" icon, a "Next" icon, a "PRPD / PRPS "Icon is displayed.

In the upper region 81 of the hourly diagnosis screen, a part of all the diagnosis elements, that is, the output signal state of the partial discharge detection sensor of the gas insulated switchgear, the output signal state of the partial discharge detection sensor of the main transformer, Status, OLTC status, and Dissolved Gas Analysis (DGA) for the current 24-hour period are displayed in the form of a straight line. A green line indicating each diagnostic element indicates that the diagnostic element is in a normal state, a yellow indicates an abnormal state, and a red indicates a dangerous state in which a power device failure occurs due to the continuation of the abnormal state. In FIG. 8, the states of all the diagnostic elements are shown as being the same for the sake of convenience, but they are actually changed differently. The discrimination diagnostic screen is not suitable for macroscopically monitoring the abnormality of a signal because it displays the measured values of a plurality of diagnostic elements in one minute in a very detailed manner. The upper area 81 of the hourly diagnosis screen is intended to supplement the disadvantage of such a discrimination diagnostic screen. In this area 81, diagnostic elements, which play an important role in the diagnosis of abnormality of a plurality of power devices 100 of the power facility, do.

8 is selected by the user from the plurality of icons in the classification diagnostic screen shown in Fig. 8, the user interface 14 of the server 10 maintains the diagnostic screen shown in Fig. When the user selects the "city" icon, the user interface 14 of the server 10 switches the classification diagnosis screen shown in FIG. 8 to the time-based diagnosis screen shown in FIG. When the "Sun" icon is selected by the user, the user interface 14 of the server 10 switches the classification diagnostic screen shown in FIG. 8 to the daily diagnostic screen shown in FIG.

The left area 82 below the classification diagnostic screen shown in Fig. 8 is an area for selecting a plurality of diagnostic elements. In the left region 82 of the time-based diagnosis screen shown in Fig. 8, only a plurality of diagnostic elements displayed in the left area of the daily diagnosis screen shown in Fig. 6 and the left side area of the hourly diagnosis screen shown in Fig. But it is marked the same. Accordingly, the description of the plurality of diagnostic elements displayed in the left area of the classification diagnostic screen shown in Fig. 8 will be replaced with the description of the plurality of diagnostic elements displayed in the left area of the daily diagnostic screen shown in Fig.

The right area 84 below the discrimination diagnostic screen shown in Fig. 8 indicates the values obtained by measuring one minute of at least one diagnostic element selected by the user among the plurality of diagnostic elements displayed in the left area 82 as a continuous wave form As shown in FIG. In the example shown in FIG. 8, values measured from 6 o'clock on July 26 to 6 o'clock on July 26 are displayed in the form of continuous waveforms for four sensors for detecting partial discharge, Resolution is one second. Due to the limitation of the size of one drawing, the left side area 82 below the discriminatory diagnostic screen contains three breaker states installed in bay 1 of the first transfer gas insulated switchgear, two OLTC states installed on the main transformer, But the understanding of this embodiment is not hampered.

A three-dimensional color graph generated by the signal analysis unit 11 according to the PRPS analysis method and a two-dimensional monochrome graph generated by the signal analysis unit 11 according to the PRPD analysis method are displayed in the right area 84 have. The former is expressed to gradually change in the order of black, blue, and red as the size of the output signal of the sensor increases. Since the diagnostic screen area occupied by the three-dimensional color graph and the two-dimensional color graph is substantial, four diagnostic elements selected by the user are displayed in the right area 84 from among a plurality of diagnostic elements displayed in the left area 82. Although only a part of the two-dimensional graph is shown due to the limitation of the size of one drawing, such a graph is known to a person having ordinary skill in the art to which this embodiment belongs, so that omission of such a graph does not hinder the understanding of this embodiment .

When at least one event of at least one diagnostic element occurs during the time period of the right area 84 in the middle area 84 below the classification diagnostic screen shown in Fig. 8, the status of the diagnostic element in which the event occurred is displayed. Such an event occurs when an output signal of a certain sensor changes abnormally. In the example shown in Fig. 8, an event occurred at 6:47 on the first breaker of the first transfer gas insulated switchgear, an event occurred at 6:25 on the first OLTC of the main transformer, It can be seen that the event occurred at the first bushing of the dedicated gas insulated switchgear. The color of each event indicates the risk of output signal for each sensor. For example, red indicates a state in which a power device is defective.

If an icon indicating discrimination diagnosis is selected by a user among a plurality of icons in the time-based diagnosis screen in step 531 and the time-based diagnosis screen is switched to the classification diagnosis screen in step 532, the image generation unit 13 ) Is extended from at least one minute corresponding to one point on the horizontal axis where the status bar is staying on the right side of the time diagnosis screen to occupy the entire section of the horizontal axis of the right side of the classification diagnostic screen, The time resolution screen is switched to the differential diagnosis screen in such a manner that the time resolution of the time resolution of the time difference is increased. In the example shown in FIG. 8, the image generating unit 13 of the server 10 extends the one-minute interval corresponding to one point on the horizontal axis where the status display bar is staying in the right area of the time- Of the horizontal axis. That is, the one-minute interval of the horizontal axis of the time-based diagnosis screen becomes the entire interval of the horizontal axis of the classification diagnostic screen.

In this way, the user observes the change trends of the respective measured values of the plurality of diagnostic elements through the time-based diagnosis screen while comparing the diagnostic factors among the plurality of diagnostic factors for each time period, and then determines the sequence of certain diagnostic elements generated according to the PRPS and PRPD analysis If you want to observe a waveform, you can see a continuous waveform of one minute corresponding to a point on the horizontal axis where the status bar is staying in the right area of the hourly diagnostic screen by simply selecting the "minutes" Expert diagnostics based on PRPS and PRPD analysis, such as the type of partial discharge generated in the instrument, can also be done very accurately.

6, the user interface 14 of the server 10 displays the daily diagnostic screen shown in Fig. 6 as the daily diagnostic screen 8 to the discrimination diagnostic screen shown in Fig. In this case, in step 532, the image generating unit 13 of the server 10 expands the one-minute interval located in the middle of the one hour interval corresponding to any one point of the horizontal axis on the right side of the daily diagnostic screen, A daily diagnostic screen is generated in such a manner that the time resolution of the measurement values of a plurality of diagnostic elements is increased by occupying the entire section of the horizontal axis of the right side area of the diagnostic screen, and the user interface 14 displays the one- Switch to diagnostic screen.

7 is selected by the user from the plurality of icons in the time-based diagnosis screen shown in Fig. 7, the user interface 14 of the server 10 displays the time- To the daily diagnosis screen. In this case, in step 512, the image generating unit 13 of the server 10 reduces the one hour interval corresponding to a certain point on the horizontal axis where the status display bar is staying in the right side area of the time diagnosis screen, The user interface 14 generates a daily diagnostic screen in such a manner that the time width of the measurement values of the plurality of diagnostic elements is extended by occupying the entire interval of the horizontal axis, that is, the one hour interval located in the middle of the 6-day interval, The daily diagnostic screen thus generated is switched.

8 is selected by the user from the plurality of icons in the classification diagnostic screen shown in Fig. 8, the user interface 14 of the server 10 displays the classification diagnostic screen shown in Fig. And switches to the time-based diagnosis screen. In this case, in step 522, the image generating unit 13 of the server 10 reduces the one-minute interval of the horizontal axis of the right area of the classification diagnostic screen to the entire interval of the horizontal axis of the right area of the time- The time interval of the measurement values of the plurality of diagnostic elements is expanded by occupying the one-minute interval, and the user interface 14 switches the differential diagnosis screen to the time-based diagnosis screen thus generated.

8 is selected by the user from among the plurality of icons in the classification diagnostic screen shown in Fig. 8, the user interface 14 of the server 10 displays the classification diagnostic screen shown in Fig. 8 6 to the daily diagnostic screen shown in FIG. In this case, in step 512, the image generating unit 13 of the server 10 reduces the one-minute interval of the horizontal axis of the right area of the classification diagnostic screen to the entire interval of the horizontal axis of the right area of the daily diagnostic screen, The user interface 14 generates a daily diagnostic screen in such a manner that the time widths of the measurement values of the plurality of diagnostic elements are expanded by occupying the one minute interval, and the user interface 14 switches the differential diagnostic screen to the daily diagnostic screen thus generated.

If the "real-time" icon is selected from a plurality of icons in the diagnostic screen currently displayed in the user interface 14 of the server 10 in step 541, the process proceeds to step 542; If the currently displayed diagnostic screen is the daily diagnostic screen, in step 542, the image generating unit 13 of the server 10 sets the latest time of the daily diagnostic screen currently displayed in the user interface 14 as the latest time in the date unit, The user interface 14 generates a daily diagnostic screen for displaying the values of the plurality of diagnostic elements measured for six days before the latest time in units of one hour, And updates the screen to the newly generated daily diagnostic screen.

If the currently displayed diagnostic screen is a time-by-day diagnostic screen, the image generating unit 13 of the server 10 in step 542 sets the latest time of the time-based diagnosis screen currently displayed in the user interface 14 as the latest time in units of time, And generates a time-by-minute diagnostic screen in which values of the plurality of diagnostic elements measured for one hour before the time are displayed in units of one minute. The user interface 14 displays the currently displayed time- Update the diagnostic screen. If the currently displayed diagnosis screen is the discrimination diagnostic screen, in step 542, the image generating unit 13 of the server 10 displays the latest time of the minute discrimination diagnostic screen currently displayed on the user interface 14, The user interface 14 changes the current diagnosis day to the current day, hour, and minute, and generates a fractional diagnosis screen in which values of a plurality of diagnostic factors measured for one minute are measured in one second, And updates it to the generated differential diagnosis screen.

If the "previous" icon is selected from a plurality of icons in the diagnostic screen currently displayed in the user interface 14 of the server 10 in step 551, the process proceeds to step 552; If the currently displayed diagnostic screen is the daily diagnostic screen, the image generating unit 13 of the server 10 changes the most advanced date of the daily diagnostic screen currently displayed on the user interface 14 to the previous date of the date in step 552 And generates a daily diagnostic screen showing the values of the plurality of diagnostic elements measured for five days before the previous date and the previous day in units of one hour, and the user interface 14 displays the currently displayed daily diagnostic screen as a daily diagnostic Screen.

If the currently displayed diagnostic screen is a time-based diagnosis screen, in step 552, the image generating unit 13 of the server 10 changes one hour of the hourly diagnosis screen currently displayed in the user interface 14 to one hour before the hour, The diagnostic interface for the time of day, and the user interface 14 updates the currently displayed hourly diagnosis screen to the newly generated hourly diagnosis screen. The image generating unit 13 of the server 10 generates an image of the discrimination diagnosis screen displayed on the user interface 14 in step 552. In step 552, One minute is changed to the previous minute of one minute, and a fractional diagnosis screen is displayed in which the values of the plurality of diagnostic elements measured for the previous one minute are expressed in one second, and the user interface 14 displays the currently displayed differential diagnosis screen Update to the classification diagnosis screen.

If the "Next" icon is selected from a plurality of icons in the diagnostic screen currently displayed in the user interface 14 of the server 10 in step 561, the process proceeds to step 562; If the diagnostic screen currently displayed is the daily diagnostic screen, in step 562, the image generating unit 13 of the server 10 causes the image generating unit 13 of the server 10 to display the daily diagnostic screen displayed on the user interface 14 A daily diagnostic screen is created in which the latest date is changed to the next day of the date and the values of the plurality of diagnostic factors measured on the next day and the next five days after the next day are displayed on an hourly basis, Updates the currently displayed daily diagnostic screen to the newly generated daily diagnostic screen.

If the currently displayed diagnostic screen is the hourly diagnostic screen, in step 562, the image generator 13 of the server 10 changes one hour of the daily diagnostic screen currently displayed in the user interface 14 to the next hour of the one hour, And generates a time-based diagnosis screen in which the values of the diagnostic elements of the time-series are measured in one-minute increments. The user interface 14 updates the currently-displayed time-based diagnosis screen to a newly generated time-based diagnosis screen. The image generating unit 13 of the server 10 changes one minute of the daily diagnostic screen currently displayed in the user interface 14 to the next minute for the one minute, And the user interface 14 updates the currently displayed differential diagnosis screen to the newly generated differential diagnosis screen.

9 is a view showing an example of a breaker diagnostic screen in the form of a pop-up window on the diagnosis screen shown in Figs. 6-8. When the "CBCM" symbol in each diagnosis screen shown in FIGS. 6-8 is clicked by the user through the touch or mouse operation of the touch screen, the image generating unit 13 of the server 10 displays The user interface 14 generates a breaker diagnostic screen that shows the current waveform of the trip coil, the waveform of the phase current flowing through the circuit breaker, and the waveform of the trip start signal of the circuit breaker, The breaker diagnostic screen thus generated is displayed in the form of a pop-up window. When the "X" symbol on the upper right of the breaker diagnostic screen is clicked by the user, the breaker diagnostic screen disappears from each diagnostic screen shown in FIGS. 6-8.

10 is a view showing an example of a popup window type OLTC diagnostic screen in the diagnostic screen shown in Figs. 6-8. When the "OLTC" symbol in each diagnosis screen shown in FIGS. 6-8 is clicked by the user through the touch or mouse operation of the touch screen, the image generating unit 13 of the server 10 displays The user interface 14 generates a breaker diagnostic screen showing the operating time of the OLTC, the current integration value of the OLTC, and the waveform of the inrush current and the normal current of the OLTC, The OLTC diagnostic screen generated in this manner is displayed in the form of a pop-up window. When the "X" symbol on the upper right side of the OLTC diagnosis screen is clicked by the user, the OLTC diagnosis screen disappears from each diagnosis screen shown in FIG. 6-8.

11 is a view showing an example of a bushing diagnosis screen in the form of a pop-up window on the diagnosis screen shown in Figs. 6-8. When the "BUSHING" symbol in each diagnosis screen shown in FIGS. 6-8 is clicked by the user through the touch screen or the mouse operation, the image generating unit 13 of the server 10 displays The bushing diagnosis screen is generated, that is, the bushing diagnosis screen showing the phase difference between the three-phase system current and the three-phase leakage current of the bushing and the vector of the three-phase leakage current of the bushing, And displays the bushing diagnosis screen generated in the form of a pop-up window on each diagnostic screen. When the phase difference between the three-phase system current and the three-phase leakage current of the bushing is close to 0% and the vector of each of the three-phase leakage currents of the bushing is similar, it means an ideal state in which there is no leakage current in the bushing. The upper right corner of the bushing diagnostic screen has an "X" symbol but is omitted due to the limitations of the size of the drawing. When the "X" symbol on the upper right side of the bushing diagnosis screen is clicked by the user, the bushing diagnosis screen disappears from each diagnosis screen shown in FIG. 6-8.

Fig. 12 is a diagram showing an example of a partial discharge diagnosis screen in the form of a popup window on the diagnosis screen shown in Figs. 6-8. In Fig. 12, "PDDS" is an abbreviation of "Partial Discharge Display Screen ". When the "PRPD / PRPS" icon in each diagnosis screen shown in FIGS. 6-8 is clicked by the user through the touch or mouse operation of the touch screen, the image generating unit 13 of the server 10 A partial discharge diagnosis screen such as a partial discharge diagnosis screen as shown in FIG. 6, that is, a three-dimensional graph generated according to the PRPS analysis method, and a two-dimensional graph generated according to the PRPD analysis method, The partial discharge diagnosis screen generated in this manner is displayed on the respective diagnosis screens shown in FIG. 8 in the form of a pop-up window. There is an "X" symbol on the upper right of the partial discharge diagnosis screen, but it is omitted due to the limitation of the drawing size. When the "X" symbol on the upper right of the partial discharge diagnosis screen is clicked by the user, the partial discharge diagnosis screen disappears from each diagnosis screen shown in FIG. 6-8.

The present invention has been described above with reference to preferred embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

10: Server
11: Signal analysis section 12: Diagnosis section
13: image generating unit 14: user interface
15: Database 16:
20: Local device
21: Signal detecting section 22:
30: Sensor
100: Power equipment

Claims (8)

A method for providing a graphical user interface for comprehensive preventive diagnosis of power facilities,
Displaying a daily diagnostic screen showing values of at least one day of a plurality of diagnostic elements for preventing failure of a plurality of power devices of the power facility in units of at least one hour or more; And
And a diagnosis display unit for displaying the daily diagnostic screen on a time-by-day diagnostic screen for displaying values obtained by measuring the plurality of diagnostic elements for at least one hour or longer in units of one or more minutes when the user selects an icon representing the hourly diagnosis from among a plurality of icons in the daily diagnostic screen, To thereby display a time-based diagnostic screen,
Wherein the daily diagnostic screen display step displays the daily diagnostic screen by switching the hourly diagnostic screen to the daily diagnostic screen when a user selects an icon representing a daily diagnosis from a plurality of icons in the hourly diagnostic screen,
Wherein the horizontal axis of the partial area of the daily diagnostic screen represents at least one day of the time period in which the plurality of diagnostic elements are measured and the vertical axis represents the size of the values of the plurality of diagnostic elements,
Wherein a horizontal axis of a partial area of the time diagnosis screen represents a time interval of at least one hour in which the plurality of diagnostic elements are measured, a vertical axis represents a magnitude of values of the plurality of diagnostic elements,
The step of displaying the daily diagnostic screen may include a step of reducing a section of at least one hour corresponding to a certain point on a horizontal axis of a partial area of the hourly diagnostic screen to occupy a section of at least one hour of a horizontal axis of a partial area of the daily diagnostic screen, The time-based diagnostic screen is switched to the daily diagnostic screen in such a manner that the time width of the measured values of the plurality of diagnostic elements is extended,
Wherein the step of displaying the time-based diagnosis screen expands at least one hour or more corresponding to a certain point on the horizontal axis of a part of the daily diagnostic screen to occupy the entire section of the horizontal axis of the partial area of the hourly diagnosis screen, Wherein the daily diagnostic screen is switched to the hourly diagnostic screen in such a manner that the time resolution of the measurement values of the diagnostic element is increased. The method according to claim 1,
A status display bar is displayed in a part of the daily diagnostic screen, the status display bar being moved while crossing the graphs of the measured values of the plurality of diagnostic elements according to user's adjustment,
Wherein values measured by the plurality of diagnostic elements at a time corresponding to a point on a horizontal axis on which the status indicator bar is staying are values obtained by measuring the plurality of diagnostic elements when the status indicator bar stays on any one of the horizontal axes Wherein each graph is displayed at an intersection of the graph and the status bar. 3. The method of claim 2,
Wherein the displaying of the hourly diagnostic screen comprises: when an icon representing the hourly diagnosis is selected by a user from among a plurality of icons in the daily diagnostic screen, Is extended to occupy the entire section of the horizontal axis of a part of the time-based diagnostic screen. The method of claim 3,
Wherein the displaying of the daily diagnostic screen comprises: when an icon representing a daily diagnosis is selected by a user from among a plurality of icons in the hourly diagnostic screen, at a certain point on the hourly diagnostic screen, Of the daily diagnostic screen is reduced and occupies an interval of at least one hour located in the middle of the entire section of the horizontal axis of a part of the daily diagnostic screen. The method according to claim 1,
When an icon indicating discrimination diagnosis is selected from among a plurality of icons in the hourly diagnosis screen by the user, the time-series diagnosis screen is displayed as a discrimination diagnostic screen in which values measured for at least one minute of the plurality of diagnostic elements are displayed in units of one second or more And displaying the discrimination diagnostic screen by switching the discrimination diagnostic screen. 6. The method of claim 5,
Wherein the status display bar is displayed in a part of the time diagnosis screen, wherein the status display bar is moved while crossing the graphs of the measured values of the plurality of diagnostic elements according to user's adjustment,
A value obtained by measuring the plurality of diagnostic elements at a time corresponding to a certain point on a horizontal axis on which the status indication bar is staying is a value obtained by measuring values of the plurality of diagnostic elements Wherein each graph is displayed at an intersection of the graph and the status bar. The method according to claim 6,
Wherein the step of displaying the discrimination diagnostic screen comprises the steps of: when an icon representing discrimination diagnosis is selected by a user from among a plurality of icons in the hourly diagnosis screen, Is extended to occupy the entire section of the horizontal axis of a partial area of the differential diagnosis screen to increase the temporal resolution of the measurement values of the plurality of diagnostic elements, . ≪ / RTI > A partial discharge remote diagnosis system for providing a graphical user interface for comprehensive preventive diagnosis of power facilities using the method of claim 1,
A plurality of sensors installed at a plurality of points of a plurality of power devices of the power facility to measure a plurality of diagnostic elements for preventing failure of the plurality of power devices;
A local device for generating detection data representing output signals of the respective sensors by detecting output signals of the plurality of sensors; And
And a server for providing a graphical user interface displayed according to the method of claim 1 based on an output signal for each sensor indicated by the detection data.

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