Information processing device, information processing method, and program

Abstract

To reduce a work load and a work time for performing a voltage settling study.SOLUTION: When a settling value examination menu screen is displayed as a menu screen display, it is possible to input designation information of a voltage adjustment device to be settled and selection information corresponding to a device serving as a voltage acquisition device among a plurality of devices installed on a line of a power distribution system. In this case, it is possible to acquire the time-series measurement data in the voltage adjustment device and the voltage acquisition device together with measurement data of a feeder current. After that, as the examination information corresponding to a current settling value or a changed settling value of the voltage adjustment device, determination information as to whether or not the current settling value or the changed settling value is within the range of a specified voltage value is output so as to be displayable, and a time transition of electrical quantities is output so as to be graph-displayable.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an information processing device, an information processing method, and a program. [Background technology]

[0002] There are known techniques for adjusting the voltage of a power distribution system. For example, Patent Document 1 discloses that the terminal voltage of a photovoltaic power generation device is acquired as a measurement value related to the power transmitted through the power distribution system, and an operating setting value of an automatic voltage regulator (SVR: Step Voltage Regulator) is determined by the acquired terminal voltage. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-197854 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, the introduction of distributed power sources such as solar power generation equipment has expanded in power distribution systems. Furthermore, the number of high-voltage consumers connecting power factor correction capacitors (SC; Shunt Capacitors) has also increased. As a result, there is a noticeable tendency for a leading power factor to occur in power distribution systems. The phenomenon in which the receiving end voltage is higher than the sending end voltage due to the influence of a leading power factor is called the Ferranti phenomenon or Ferranti effect. In conventional voltage setting studies that assume a lagging power factor, the deviation from the actual measured value makes it difficult to make appropriate decisions, which can increase the workload and time required.

[0005] The present invention has been made in consideration of the above-described circumstances, and aims to provide an information processing device, an information processing method, and a program that reduce the workload and shorten the time required to study voltage setting. [Means for solving the problem]

[0006] In order to achieve the above object, an information processing device according to the present invention comprises: a designation means for inputting designation information for a voltage adjustment device to be adjusted; a selection means capable of inputting selection information corresponding to a voltage acquisition device among a plurality of devices installed on a line of a power distribution system; an acquisition means capable of acquiring time-series measurement data of the voltage adjustment device and the voltage acquisition device together with measurement data of the feeder current; an output means for outputting, in a displayable manner, examination information corresponding to the setting value of the voltage regulator for which designation information is input by the designation means, using the measurement data acquired by the acquisition means; Equipped with. [Effects of the Invention]

[0007] According to the present invention, it is possible to reduce the workload and time required to study voltage setting. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 illustrates an example of the configuration of an information processing device. [Figure 2] FIG. 2 is a diagram illustrating an example of a configuration of programs and data stored in a storage unit. [Figure 3] 10 is a flowchart illustrating an example of a setting review support process. [Figure 4] FIG. 10 is a diagram illustrating an example of the configuration of a setting value consideration menu screen. [Figure 5] 10A and 10B are diagrams illustrating display examples of a designated information input area in a target display area. [Figure 6] FIG. 10 is a diagram showing a display example of a selection information input area in the selection display area. [Figure 7] 10A and 10B are diagrams illustrating display examples of an acquisition information setting area in an acquisition display area. [Figure 8] FIG. 10 is a diagram showing a display example of a category selection setting area in the consideration display area. [Figure 9] 10A and 10B are diagrams illustrating display examples of a detailed information input area in a detailed display area. [Figure 10] FIG. 10 is a diagram showing an example of a graph display screen corresponding to a current setting value. [Figure 11] FIG. 10 is a diagram showing an example of a display of a voltage setting value confirmation screen. [Figure 12] FIG. 10 is a diagram showing an example of a graph display screen corresponding to changed setting values. [Figure 13] 1A shows an example of verification after setting consideration of the time course of voltage in a voltage acquisition device and (B) the results of voltage measurement at an annual measurement point on a feeder. [Figure 14] FIG. 10 is a diagram showing an example of a graph display screen corresponding to a current set value of a bus voltage. [Figure 15] FIG. 10 is a diagram showing an example of a graph display screen corresponding to a changed set value of a bus voltage. [Figure 16] FIG. 10 is a diagram showing the examination times compared in an example of verification of operational effects. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of the present invention will be described below. An information processing device 100 according to this embodiment may be, for example, a personal computer, a server device, a workstation, or any other computer using a processor capable of executing any information processing or signal processing. As shown in Fig. 1, the information processing device 100 includes a storage unit 111, a processing unit 112, an output unit 113, an input unit 114, and a communication unit 115.

[0010] The storage unit 111 can be configured to include, for example, semiconductor memories such as ROM (Read Only Memory), RAM (Random Access Memory), HDD (Hard Disk Drive), flash memory, optical disk recording / reading devices, magneto-optical disk recording / reading devices, a combination of some or all of these, or any other storage device using electronic, magnetic, or optical methods, or some or all of these. Part or all of the storage unit 111 may be built into the information processing device 100 or may be configured to be externally attachable. The storage unit 111 stores various programs executed in the information processing device 100, information and data used for various processes, and the like.

[0011] The processing unit 112 can be configured to include a processor such as a CPU (Central Processing Unit). The processor may be configured to include an MPU (Micro-Processing Unit), a GPU (Graphics Processing Unit), a DSP (Digital Signal Processor), or some or all of these. The processing unit 112 executes various programs in the information processing device 100, enabling software-based information processing to be specifically realized using hardware.

[0012] The output unit 113 may be configured to include, for example, a display device such as a liquid crystal display, a printing device such as a printer, an audio output device such as a speaker, a combination of some or all of these, or any other output device. Some or all of the output unit 113 may be built into the information processing device 100 or may be configured to be externally attached. The output unit 113 may include a connector or signal output terminal that enables output of image data and video signals generated by the processing unit 112 so that various screens and images can be displayed on an external display device, etc. Therefore, hereinafter, "displayable on a display device, etc. of the output unit 113" includes output of image data and video signals that can be displayed on an external display device, etc. In this way, the output unit 113 outputs various information resulting from the execution of processing in the information processing device 100 so that the user can use it.

[0013] The input unit 114 can be configured to include, for example, a keyboard, a mouse, a touch panel, a combination of some or all of these, or any other input device. The input unit 114 may include any input interface such as a USB (Universal Serial Bas) port. The input unit 114 inputs various commands to the processing unit 112 to start the execution of processing in the information processing device 100 in response to the detection result of an input operation by the user.

[0014] The communication unit 115 may be configured to include any network interface. The communication unit 115 may be connected to, for example, a local area network (LAN), a wide area network (WAN), the Internet, an intranet, a telephone line, a composite fiber optic overhead ground wire (OPGW), a mobile communication network, a combination of some or all of these, or any other network using some or all of these, such as an electric communication network including a wireless communication network, an optical communication network, or any other network using some or all of these, and may transmit various data and information by sending and receiving communication signals. In this embodiment, the communication unit 115 performs communication to acquire measurement data 200. The measurement data 200 is saved in a file in a predetermined format, such as a comma separated value (CSV) file, at each business location of the electric power company. The measurement data 200 acquired by the communication unit 115 is stored in the storage unit 111. The measurement data 200 may be acquired by a reading device or the like provided in the input unit 114.

[0015] 2 is capable of storing a review support program 120, review support information 130, and various other programs and information. The review support program 120 is a processing program executable by the processing unit 112, and is capable of supporting the review of setting values ​​corresponding to the voltage regulator device that is the target of setting. The review support information 130 is various information that can be used or generated in conjunction with the execution of the review support program 120 by the processing unit 112.

[0016] The examination support program 120 may be configured with a plurality of program modules, including a menu display module 121, a display data creation module 122, a graph display module 123, and a setting value confirmation display module 124. The menu display module 121 enables a setting value examination menu screen to be displayed on a display device, etc., of the output unit 113. The display data creation module 122 enables the creation of display data for examination support that can be used to examine the setting values ​​of the voltage regulator, based on input content, etc., on the setting value examination menu screen. The graph display module 123 enables a graph display screen to be displayed on a display device, etc., of the output unit 113 as examination information corresponding to the setting values ​​of the voltage regulator. The setting value confirmation display module 124 enables a voltage setting value confirmation screen to be displayed on a display device, etc., of the output unit 113, for the current or changed setting values ​​of the voltage regulator.

[0017] The examination support information 130 may be configured from multiple types of information, including target designation information 131, equipment selection information 132, measurement-related information 133, regulation determination information 134, and various display information 135. The target designation information 131 is designation information indicating the voltage adjustment device to be set. The equipment selection information 132 is selection information corresponding to a voltage acquisition device among multiple devices installed on the lines of the power distribution system. The measurement-related information 133 is information related to actual measurement values, including measurement data of feeder current and measurement data of the voltage adjustment device and voltage acquisition device. The regulation determination information 134 is determination information that indicates whether the voltage is within the range of the voltage regulation value when considering the setting value of the voltage adjustment device. The various display information 135 is display information including data to be displayed on a display device of the output unit 113.

[0018] 3, the processing unit 112 of the information processing device 100 can execute a setting study support process. The setting study support process can be executed by the processing unit 112 reading out a study support program 120 stored in the storage unit 111. The study support program 120 uses various display information 135 stored in the storage unit 111 to display on a screen of a display device or the like of the output unit 113, and supports the study of voltage setting by a feedback method using measurement data from a voltage acquisition device.

[0019] In the setting study support processing, the processing unit 112 outputs a setting value study menu screen as a menu screen display (step S101) so that it can be displayed on a display device or the like of the output unit 113. In this case, the processing unit 112 makes it possible to display the setting value study menu screen on a display device or the like of the output unit 113 using the menu display module 121 of the study support program 120. The setting value study menu screen may be displayed using menu screen display information included in the various display information 135 of the study support information 130.

[0020] When the setting value study menu screen is displayed by the menu display module 121 of the study support program 120, the processing unit 112 enables input of designation information for a voltage regulator device to be set in response to an input command, such as when the user operates the input unit 114. For example, the designation information may indicate an identification number for designating a voltage regulator device, such as an automatic voltage regulator device to be set. The setting value study menu screen that can be displayed in step S101 enables input of designation information for a voltage regulator device to be set. In this way, the processing unit 112 that executes step S101 of the setting study support process, together with the input unit 114 operated by the user and the display device of the output unit 113 that displays the setting value study menu screen, is an example of a designation means that can input designation information for a voltage regulator device to be set.

[0021] When the menu display module 121 of the study support program 120 displays the setting value study menu screen, the processing unit 112 enables input of selection information corresponding to a voltage acquisition device among multiple devices installed on the line of the power distribution system in response to an input command, such as when the user operates the input unit 114. For example, the selection information may indicate an identification number for selecting, as a voltage acquisition device, another voltage regulation device installed on the load side of the automatic voltage regulation device to be set, a sensor-equipped switch, an automatic reclosing device, a phasor measurement unit (PMU), a power flow measurement device such as a telemeter (TM), or any other measurement device capable of measuring electrical quantities including voltage at a measurement point in the power distribution system. The setting value study menu screen that can be displayed in step S101 enables input of selection information corresponding to a voltage acquisition device among multiple devices installed on the line of the power distribution system. In this way, the processing unit 112 that executes step S101 of the setting study support process is an example of a selection means that can input selection information corresponding to the voltage acquisition device, together with the input unit 114 operated by the user and the display device of the output unit 113 that displays the setting value study menu screen.

[0022] Next, as input result capture (step S102), the various information and measurement data input on the setting value consideration menu screen displayed in step S101 are captured and can be stored in the storage unit 111. For example, when the setting value consideration menu screen is displayed, the processing unit 112 is only required to be able to generate or acquire all or part of target designation information 131, device selection information 132, and measurement-related information 133 in response to a user's operation of the input unit 114, and store them in the storage unit 111.

[0023] The target designation information 131 acquired in step S102 is designation information for a voltage regulator entered on the setting value review menu screen. The device selection information 132 acquired in step S102 is selection information for a voltage acquisition device entered on the setting value review menu screen. The measurement-related information 133 acquired in step S102 may include, among the communication data 200 acquireable by the communication unit 115, time-series measurement data for a voltage regulator corresponding to the designation information and time-series measurement data for a voltage acquisition device corresponding to the selection information. Each device selectable as a voltage acquisition device may be capable of generating measurement data indicating measurement results of various electrical quantities, including voltage, at predetermined time intervals, such as every three minutes. The measurement-related information 133 may also include, as measurement data for feeder current, first measurement data corresponding to a maximum current day and second measurement data corresponding to a minimum current day. It is sufficient if these measurement data can be acquired in response to an acquisition command issued by the user operating the input unit 114 when the processing unit 112 is displaying the setting value study menu screen using the menu display module 121 of the study support program 120. Therefore, the processing unit 112 that executes step S102 of the setting study support process, together with the input unit 114 operated by the user and the display device of the output unit 113 that displays the setting value study menu screen, is an example of an acquisition means that can acquire various measurement data.

[0024] Based on the input results acquired in step S102, the processing unit 112 displays the result of the determination of the specified voltage value as a current setting value correspondence display (step S103), and displays a graph of the time transition of various electrical quantities. When displaying the result of the determination of the specified voltage value, the processing unit 112 determines whether the output voltage of the voltage regulator and the ultimate voltage of the voltage acquisition device are within the range of specified values ​​using the display data creation module 122 of the study support program 120. To make these determinations, the display data creation module 122 calculates the actual voltage drop and determines the upper and lower limits of the output voltage of the voltage regulator, the upper and lower limits of the ultimate voltage on the low-voltage side, and so on. It is sufficient that the specification determination information 134 is generated corresponding to these upper and lower limits and can be stored in the storage unit 111.

[0025] The actual voltage drop can be calculated by subtracting the high-voltage equivalent voltage on the arrival side from the sending voltage on the power source side, and also by taking into account the voltage drop to the end, making it possible to calculate using the voltage drop in high-voltage voltage load management.For example, the voltage drop E can be calculated using the voltage drop calculation formula (1) given as the sending voltage V of a voltage regulator such as an automatic voltage regulator, the transformer tap Tt, the log voltage Vr of the voltage acquisition device, the voltage drop e from the voltage acquisition device to the end, the hourly current Ih, and the annual maximum current Imax. E=V-(Tt / 105×Vr)+e(Ih / Imax) (1) In this way, the value of the voltage drop E can be obtained using the sending voltage V of the voltage regulator, the transformer tap Tt, the log voltage Vr of the voltage acquisition device, the voltage drop e from the voltage acquisition device to the terminal, the hourly current Ih, and the annual maximum current Imax.

[0026] To determine the upper and lower limits of the sending voltage in a voltage regulator, the system uses time-series measurement data, which serves as log data in a voltage regulator such as an automatic voltage regulator, to calculate the sending voltage from the compensation voltage obtained by calculating line voltage drop compensation (LDC). The system then determines the upper and lower limits of the sending voltage corresponding to the dead-band rate. This makes it possible to consider setting values ​​that also correspond to leading power factors.

[0027] For example, the sending voltage Vs of the automatic voltage regulator is calculated using the sending voltage calculation formula (2) where Vk is the reference voltage in the automatic voltage regulator, I is the passing current, I is the power factor cosθ, r is the resistance component of the settling impedance, and x is the reactor component of the settling impedance. Vs=Vk+√3I(rcosθ+xsinθ) (2) In this way, the output voltage Vs of the automatic voltage regulator can be obtained using the reference voltage Vk, the passing current I, the power factor cosθ, the resistance component r of the settling impedance, and the reactor component x of the settling impedance.

[0028] Furthermore, for example, with the dead band rate f [%], the dead band upper limit voltage Vh is calculated as the upper limit of the sending voltage using the sending upper limit value calculation formula of Equation (3). Vh=Vs+6700×f / 100 (3) In this way, the upper limit voltage Vh of the delivery voltage can be obtained using the delivery voltage Vs of the automatic voltage regulator, the dead band rate f, and these. Similarly, the lower limit voltage Vl of the delivery voltage can be obtained using the delivery voltage Vs of the automatic voltage regulator, the dead band rate f, and these. The processing unit 112 that determines the upper limit voltage Vh and the lower limit voltage Vl of the delivery voltage can be included as an example of a range determination means that can determine the range of specified voltage values ​​using time-series measurement data from the voltage regulator.

[0029] Using the above calculation results, it is possible to determine the upper and lower limits of the low-voltage side of the ultimate voltage. For example, the upper limit voltage Vh of the delivery voltage calculated using equation (3) is set as the high-voltage upper limit, the voltage drop E calculated using equation (1) is set as the high-voltage voltage drop, and the Tr tap Tt and the low-voltage time-zone voltage drop Eh are used to calculate the low-voltage upper limit VLh as the upper limit on the low-voltage side of the ultimate voltage using equation (4). VLh = (Vh + E) × 105 / Tt - Eh (4) In this way, the upper limit voltage VLh on the low-voltage side of the target voltage can be obtained using the upper limit voltage Vh of the delivery voltage, the voltage drop E, the Tr tap Tt, and the voltage drop Eh for each low-voltage time period. Similarly, the lower limit voltage VLl, which is the lower limit value on the low-voltage side of the target voltage, can be obtained using the lower limit voltage Vl of the delivery voltage, the voltage drop E, the Tr tap Tt, and the voltage drop Eh for each low-voltage time period. The processing unit 112 that determines the upper limit voltage VLh and lower limit voltage VLl on the low-voltage side of the target voltage can be included as an example of a range determination means that can determine the range of specified voltage values ​​using the voltage drop Eh for each low-voltage time period.

[0030] The processing unit 112 enables a voltage set value confirmation screen to be displayed on a display device or the like of the output unit 113 by the setting value confirmation display module 124 of the examination support program 120. The voltage set value confirmation screen that can be displayed in step S103 makes it possible to confirm the result of determining whether or not the sending voltage and the target voltage are within the range of specified values, as an example of examination information corresponding to the current setting value of the voltage regulator, using the specified determination information 134. In this way, the processing unit 112 that executes step S103 of the setting examination support process, together with the display device or the like of the output unit 113 that displays the voltage set value confirmation screen, is an example of a first current state output means that displays and outputs determination information corresponding to the current setting value of the voltage regulator, as to whether or not the voltage is within the range of specified voltage values.

[0031] Furthermore, the processing unit 112 enables a graph display screen to be displayed on the display device of the output unit 113, etc., by the graph display module 123 of the examination support program 120. The graph display screen that can be displayed in step S103 can graphically display the time transition of various electrical quantities using the measurement data acquired in step S102 and included in the measurement-related information 133, as another example of examination information corresponding to the current setting values ​​of the voltage regulator device. Therefore, the processing unit 112 that executes step S103 of the setting examination support process, together with the display device of the output unit 113 that displays the graph display screen, also serves as an example of a second current status output means that outputs the time transition of various electrical quantities corresponding to the current setting values ​​of the voltage regulator device in a manner that allows them to be displayed graphically. The processing unit 112, including the first current status output means and the second current status output means, together with the display device of the output unit 113, etc., serves as an example of an output means that displays and outputs examination information corresponding to the setting values ​​of the voltage regulator device.

[0032] After the display in step S103 is performed, it is determined whether or not the termination condition is met (step S104). For example, when a voltage setting value confirmation screen or a graph display screen is displayed, the processing unit 112 may determine that the termination condition is met in response to a termination command issued by the user through operation of the input unit 114. When the termination condition is met (step S104; Yes), the setting study support process ends.

[0033] If the termination condition is not met (step S104; No), the processing unit 112 enables input of a changed setting value on the voltage setting value confirmation screen as a changed setting value input (step S105). When the voltage setting value confirmation screen is displayed by the setting value confirmation display module 124 of the study support program 120, the processing unit 112 enables input of a changed setting value in response to a change command issued by the user operating the input unit 114, for example. The processing unit 112 also enables change of the setting of the voltage control method. The changed setting value input on the voltage setting value confirmation screen may be stored in the storage unit 111 as included in the measurement-related information 133 or as information separate from the measurement-related information 133.

[0034] The voltage setting value confirmation screen displayed in step S105 allows input of setting change information when changing the setting value of the voltage regulator. In this way, the processing unit 112 that executes step S105 of the setting study support process, together with the input unit 114 operated by the user and the display device of the output unit 113 that displays the voltage setting value confirmation screen, is an example of a change means that allows input of setting change information when changing the setting value of the voltage regulator to be set.

[0035] Based on the changed setting values ​​input in step S105, the processing unit 112 displays the determination result of the voltage specified value as a changed setting value correspondence display (step S106) and displays a graph showing the time transition of various electrical quantities. In this case, by performing the same process as the current setting value correspondence display in step S103 on the changed setting values, it becomes possible to determine whether the output voltage of the voltage regulator device and the attained voltage of the voltage acquisition device are within the range of the specified value. The processing unit 112 displays a voltage setting value confirmation screen using a setting value confirmation display module 124 of the examination support program 120 and displays a graph display screen using a graph display module 123 of the examination support program 120.

[0036] The voltage set value confirmation screen displayed in step S106 allows confirmation of the results of determining whether the sending voltage and the target voltage are within the specified value range, as an example of examination information corresponding to the changed set value of the voltage regulator. The graph display screen displayed in step S106 allows graph display of the time transition of various electrical quantities, as another example of examination information corresponding to the changed set value of the voltage regulator. In this way, the processing unit 112 executing step S106 of the setting examination support process, together with the display device of the output unit 113 displaying the voltage set value confirmation screen, is an example of a first change output means that displays and outputs determination information corresponding to the changed set value of the voltage regulator, indicating whether the voltage is within the specified voltage range. Furthermore, the processing unit 112 executing step S106 of the setting examination support process, together with the display device of the output unit 113 displaying the graph display screen, is also an example of a second change output means that displays and outputs the time transition of various electrical quantities corresponding to the changed set value of the voltage regulator, in a manner that allows it to be displayed. The processing unit 112 including the first change output means and the second change output means, together with the display device of the output unit 113, is an example of an output means that outputs the consideration information corresponding to the setting value of the voltage regulator in a displayable manner.

[0037] After the display in step S106, it is determined whether or not a re-change command has been issued (step S107). For example, the processing unit 112 may determine whether or not a re-change command has been issued by the user operating the input unit 114. If a re-change command has been issued (step S107; Yes), the process returns to step S105, allowing a new changed setting value to be input. If a re-change command has not been issued (step S107; No), the setting study support process ends.

[0038] The setting value consideration menu screen, the configuration example 200 of which is shown in FIG. 4, includes a target display area A01, a selection display area A02, an acquisition display area A03, a consideration display area A04, and a details display area A05.

[0039] The target display area A01 is a display area that displays and allows input of information for designating, for example, an automatic voltage regulator as the voltage regulator to be set. The target display area A01 includes a designation information input area. The designation information input area may be configured to allow input of information for designating the voltage regulator to be set.

[0040] The selection display area A02 is a display area that displays and allows input of information for selecting a voltage acquisition device. The selection display area A02 includes a selection explanation display area and a selection information input area. The selection explanation display area may be configured to display selection explanation information that serves as explanation information when selecting a voltage acquisition device. The selection information input area may be configured to allow input of information for selecting a voltage acquisition device.

[0041] The selection explanation display area of ​​the selection display area A02 may display multiple types of explanation information as selection explanation information. For example, the selection explanation information includes first selection explanation information indicating the message "Print automatic section management table." The selection explanation information also includes second selection explanation information indicating the message "Select target equipment using high-voltage load management" and the message "Select AD, RE, SVR, and terminal location near tap change points or near terminals." The selection explanation information also includes third selection explanation information indicating these four messages: "LLsMap: Check Tr tap of voltage acquisition device," "SVR: Primary side periphery, switch: power supply side / load side," "Select AD, TRs, TVs, SEN, and TM near tap change points or near terminals," and "When terminals are considered, enter the voltage drop from the voltage acquisition device to terminals using voltage load management."

[0042] The acquisition display area A03 is a display area that displays and allows reading of information for acquiring measurement data such as voltage values ​​from a voltage acquisition device. The acquisition display area A03 includes an acquisition instruction display area and an acquisition information setting area. The acquisition instruction display area may be configured to display acquisition instruction information that serves as explanatory information when acquiring measurement data. The acquisition information setting area may be configured to allow measurement data from the voltage acquisition device to be set and read.

[0043] The acquisition explanation display area of ​​the acquisition display area A03 may display multiple types of explanation information as acquisition explanation information. For example, the acquisition explanation information may include first acquisition explanation information that displays the message, "Last year, the dates on which the feeder's maximum and minimum current occurred were investigated using the actual load of the automation system (using the actual load excluding distributed power sources)." The acquisition explanation information may also include second acquisition explanation information that displays the message, "Obtain the maximum and minimum date data log of the target SVR and voltage acquisition device for setting" and the message, "Create a 24-hour data log CSV of the maximum and minimum date of the target device from the backup PC and save it in the same folder as the study file." The acquisition explanation information may also include third acquisition explanation information that displays the message, "Load the maximum and minimum data using the [Load Setting SVR CSV] and [Load No.] buttons on the voltage acquisition device."

[0044] The consideration display area A04 is a display area that displays information for considering the setting values ​​of the voltage regulator device and allows the user to select a low-voltage demand category. The consideration display area A04 includes a consideration explanation display area and a category selection setting area. The consideration explanation display area may be configured to display consideration explanation information that serves as explanatory information when considering the setting values ​​of the voltage regulator device. The category selection setting area may be configured to allow the user to select and input codes corresponding to multiple categories that are prepared in advance as low-voltage demand categories.

[0045] The examination explanation display area of ​​the examination display area A04 may display multiple types of explanatory information as examination explanation information. For example, the examination explanation information includes first examination explanation information displaying the message, "Select low-voltage demand classifications by maximum load and minimum load to consider low-voltage voltage drops in the examination area." The examination explanation information also includes second examination explanation information displaying the message, "Enter the current setting value in the SVR voltage setting value sheet and check the graph." The examination explanation information also includes third examination explanation information displaying the message, "Check the judgment column and graph, and if it is within the voltage setting, the current setting is OK." In addition, the examination explanation information includes fourth examination explanation information displaying the message, "If it is outside the specified value, adjust the %R, %X, reference voltage, etc. after the change. If it is not within the specified value, consider PC+LDC." The examination explanation information also includes fifth examination explanation information displaying the message, "If the specified value is still not obtained, correct the low-voltage voltage drop of the voltage acquisition device in 5. Detailed examination." These examination explanation information items explain the procedure for examining the setting value.

[0046] When outputting the examination information corresponding to the setting values ​​of the voltage regulator device in a displayable manner, the processing unit 112, which is an example of an output means, displays the examination explanation information including the first examination explanation information to the fifth examination explanation information in the examination explanation display area included in the examination display area A04 of the configuration example 200. When outputting the examination information corresponding to the setting values ​​of the voltage regulator device in a displayable manner, the processing unit 112, together with the display device of the output unit 113 that displays the setting value examination menu screen, is an example of a procedure output means that displays the examination explanation information showing the examination procedure for the setting values. By displaying the examination explanation information together with other explanation information, even a first-time viewer can easily examine the setting values.

[0047] The detail display area A05 is a display area that displays and allows input of information for correcting the low-voltage voltage drop. The detail display area A05 includes a detailed explanation display area and a detailed information input area. The detailed explanation display area may be configured to display detailed explanation information that serves as explanation information for correcting the low-voltage voltage drop. The detailed information input area may be configured to allow input of detailed drop information for correcting the low-voltage voltage drop.

[0048] The detailed explanation display area of ​​the detailed display area A05 may be capable of displaying explanatory information that serves as the detailed explanation information. For example, the detailed explanation information may display a message such as, "In AD and TRs, the Tr utilization rate and low-voltage line voltage drop cause a large high-voltage conversion error, so input this to correct for the low-voltage voltage drop."

[0049] 5 shows a display example 210, the designated information input area of ​​the target display area A01 includes a designated item display field A11 and a designated information input field A12. The processing unit 112, which is an example of a designation means, enables the input of designated information for the voltage adjustment device to be adjusted using the designated information input area arranged in the target display area A01, including the designated item display field A11 and the designated information input field A12.

[0050] The specified item display field A11 may be configured to include input items when specifying the voltage regulator to be adjusted, such as the identification number of the automatic voltage regulator, capacity, installed feeder, utility pole number, and year of manufacture of the control device, as well as multiple display field cells that display these items.

[0051] The specified information input field A12 may be configured to include cells serving as multiple input fields for inputting information about the automatic voltage regulator device to be set, corresponding to the display contents in the multiple display fields that make up the specified item display field A11. The information input in the specified information input field A12 can be stored in the storage unit 111 as target specified information 131.

[0052] 6 shows a display example 211 of the selection display area A02, which includes a heading message of "Voltage Acquisition Device List," as well as a selection item display field A21, a device number display field A22, and a selection information input field A23. The processing unit 112, which is an example of a selection means, enables input of selection information corresponding to the voltage acquisition device through the selection information input area arranged in the selection display area A02, which includes the selection item display field A21, the device number display field A22, and the selection information input field A23, along with the selection explanation display area.

[0053] The selection item display field A21 may be configured to include input items when selecting a voltage acquisition device, such as the type of voltage acquisition device, identification number, voltage drop when considering the terminal, power supply side Tr tap, load side Tr tap, Tr tap area, and multiple display field cells that display these items.

[0054] The device number display field A22 may be configured to include cells that serve as a plurality of display fields for displaying the device numbers assigned to the respective voltage acquisition devices when multiple devices are selected as voltage acquisition devices.

[0055] The selection information input field A23 may be configured to include cells that serve as multiple input fields for inputting information about voltage acquisition devices selected for each device number in the device number display field A22, corresponding to the display contents in the multiple display fields that make up the selection item display field A21. The information input in the selection information input field A23 can be stored in the memory unit 111 as device selection information 132.

[0056] When selection information corresponding to a voltage acquisition device can be input, processing unit 112, which is an example of a selection means, outputs selection explanation information including the first to third selection explanation information described above in a displayable manner in a selection explanation display area included in selection display area A02 of configuration example 200 shown in Fig. 4. Such processing unit 112, together with a display device of output unit 113 that displays a setting value consideration menu screen, is an example of a selection output means that displays and outputs selection explanation information corresponding to selection information that can be input by the selection means.

[0057] 7 shows an example display 212 of the acquisition information setting area of ​​the acquisition display area A03, which includes a feeder current input field A31 and a measurement data read field A32. The processing unit 112, which is an example of an acquisition means, makes it possible to acquire time-series measurement data of the voltage regulator and voltage acquisition device together with measurement data of the feeder current through the acquisition information setting area arranged in the acquisition display area A03, which includes the feeder current input field A31 and the measurement data read field A32, together with the acquisition explanation display area.

[0058] The feeder current input field A31 may be configured to include cells serving as multiple input fields for inputting measurement data of feeder current, along with the messages "Feeder maximum current date" and "Feeder minimum current date." The maximum current input field provided along with the message "Feeder maximum current date" enables first current measurement data relating to the current value at maximum load to be acquired in response to an input command, for example, when the user operates the input unit 114. The minimum current input field provided along with the message "Feeder minimum current date" enables second current measurement data relating to the current value at minimum load to be acquired in response to an input command, for example, when the user operates the input unit 114.

[0059] The measurement data input in the feeder current input field A31 can be included in the measurement-related information 133 and stored in the storage unit 111. For example, the date input in response to the message "Feeder maximum current date" and maximum current information including the first current measurement data may be included in the measurement-related information 133 and stored in the storage unit 111. The date input in response to the message "Feeder minimum current date" and minimum current information including the second current measurement data may be included in the measurement-related information 133 and stored in the storage unit 111.

[0060] Therefore, the processing unit 112, which is an example of an acquiring means, can configure an example of a first acquiring means by displayably outputting the maximum current input field of the feeder current input field A31 included in the acquisition display area A03 and making it possible to acquire first current measurement data corresponding to the maximum value of the feeder current.Furthermore, the processing unit 112, which is an example of an acquiring means, can configure an example of a second acquiring means by displayably outputting the minimum current input field of the feeder current input field A31 included in the acquisition display area A03 and making it possible to acquire second current measurement data corresponding to the minimum value of the feeder current.

[0061] The measurement data read field A32 includes a first data read field with an item display of "Setting SVR" corresponding to the case of acquiring measurement data of a voltage regulator, and a second data read field with an item display of "Voltage Acquisition Device" corresponding to the case of acquiring measurement data of a voltage acquisition device. The first data read field includes a button display B01 displaying the text "Read Setting SVR CSV." When the input unit 114 detects an operation of pressing the button display B01, it becomes possible to select a CSV file in which measurement data of the automatic voltage regulator to be set is saved. This makes it possible to acquire time-series measurement data of the voltage regulator. The second data read field includes multiple button displays B11 to B19 displaying text ranging from "Read No. 1" to "Read No. 9," corresponding to the equipment numbers in the equipment number display field A22 in the selection information input area of ​​the selection display area A02. When the input unit 114 detects an operation of pressing one of the buttons B11 to B19, it makes it possible to select a CSV file in which measurement data of the device selected as the voltage acquisition device is saved. This makes it possible to acquire time-series measurement data of the voltage acquisition device. Therefore, the processing unit 112, which displays and outputs the measurement data read field A32 in the acquisition information setting area of ​​the acquisition display area A03 and makes it possible to acquire measurement data in response to pressing of the button display, is an example of an acquisition means capable of acquiring time-series measurement data of the voltage adjustment device and the voltage acquisition device.

[0062] When various measurement data can be acquired, the processing unit 112, which is an example of an acquisition means, outputs acquisition explanation information including the first to third acquisition explanation information described above in an acquisition explanation display area included in the acquisition display area A03 of the configuration example 200 shown in Fig. 4 in a displayable manner. Such processing unit 112, together with the display device of the output unit 113 that displays the setting value consideration menu screen, is an example of an acquisition output means that displays and outputs acquisition explanation information corresponding to the measurement data that can be acquired by the acquisition means.

[0063] The category selection setting area of ​​the consideration display area A04, a display example 213 of which is shown in FIG. 8, includes a category code display field A41 and a category code input field A42.

[0064] The category code display field A41 is arranged in accordance with the first consideration explanation information in the consideration explanation display area, and may be configured to include cells that serve as multiple display fields displaying codes "1" to "4" for "general household," "factory area," "general + PV," and "factory + PV," which are prepared as low-voltage demand categories. In this case, the first code explanation information may be displayed so that areas with a lot of low-voltage solar power should select code "3" or "4" at minimum load.

[0065] The category code input field A42 may be configured to include cells serving as multiple input fields in which one of the codes "1" to "4" displayed in the category code display field A41 is selected and input, corresponding to the items "at maximum load" and "at minimum load." In this case, the second code explanation information may be displayed so that one of the codes "1" or "2" is selected and input into the input field corresponding to the item "at maximum load," and one of the codes "1" to "4" is selected and input into the input field corresponding to the item "at minimum load."

[0066] The detailed information input area of ​​the detailed display area A05, whose display example 214 is shown in FIG. 9, includes a detailed item display field A51, a device number display field A52, and a detailed information input field A53.

[0067] The detailed item display field A51 may be configured to include input items for inputting detailed drop information, such as the type of sensor-equipped switchgear such as an instantaneous excitation type high-voltage automatic switchgear with built-in earth fault direction detector or automatic reclosing device, identification number, Tr capacity, Tr utilization rate, low-voltage line voltage drop, and maximum voltage drop, as well as cells that serve as multiple display fields displaying these items. Of these, the Tr capacity, Tr utilization rate, low-voltage line voltage drop, and maximum voltage drop items are provided for the power supply side and the load side, respectively.

[0068] The equipment number display field A52 may be configured to include cells that serve as multiple display fields for displaying the equipment numbers assigned to each of the equipment when multiple sensor-equipped switches or automatic reclosing devices are specified.

[0069] The detailed information input field A53 may be configured to include cells that serve as multiple input fields for inputting information about devices specified for each device number in the device number display field A52, corresponding to the display contents in the multiple display fields that make up the detailed item display field A51. The information input in the detailed information input field A53 can be stored in the storage unit 111 as detailed descent information included in the measurement-related information 133.

[0070] The graph display screen shown in FIG. 10 as a display example 220 includes four display areas, a first current status graph display area B01 to a fourth current status graph display area B04, which are capable of graphically displaying the time evolution of various electrical quantities corresponding to the current setting value of the voltage regulator. The first current status graph display area B01 displays a time evolution graph of the upper limit of the transistor direct-under voltage corresponding to the current setting value and the minimum load. The second current status graph display area B02 displays a time evolution graph of the voltage drop of the voltage acquisition device corresponding to the current setting value and the minimum load. The third current status graph display area B03 displays a time evolution graph of the active current and reactive current corresponding to the current setting value and the minimum load. The fourth current status graph display area B04 displays a time evolution graph of the power factor corresponding to the current setting value and the minimum load. The graph display screen may also be capable of graphically displaying the time evolution of various electrical quantities similar to those at the minimum load corresponding to the current setting value and the maximum load. The display devices of the processing unit 112 and output unit 113, which are examples of the second current status output means, may be capable of graphically displaying the time progression of electrical quantities corresponding to the current setting values ​​of the voltage regulator in the first current status graph display area B01 to the fourth current status graph display area B04 included in the graph display screen of display example 220, or in any other graph display area.

[0071] The graph display area of ​​the graph display screen corresponding to the current setting value and the maximum load can display a time transition graph as an example of first consideration information at the maximum load, corresponding to the maximum value of the feeder current for which the first current measurement data was acquired. In this case, it is sufficient to identify the date on which the first current measurement data was acquired from the maximum current information, and use the time-series measurement data of the voltage regulator and the voltage acquisition device acquired corresponding to that date to graphically display the time transition of various electrical quantities at the current setting value and the maximum load. Therefore, the processing unit 112, which is an example of an output means, can configure an example of first consideration output means that displays the first consideration information at the maximum load, corresponding to the maximum value of the feeder current for which the first current measurement data was acquired, by outputting the time transition graph in the graph display area of ​​the graph display screen corresponding to the current setting value and the maximum load.

[0072] The graph display area of ​​the graph display screen corresponding to the current setting value and the minimum load can display a time transition graph as an example of second consideration information at the minimum load, corresponding to the minimum value of the feeder current for which the second current measurement data was acquired. In this case, the date on which the second current measurement data was acquired can be identified from the minimum current information, and time-series measurement data of the voltage regulator and the voltage acquisition device acquired corresponding to that date can be used to graphically display the time transition of various electrical quantities at the current setting value and the minimum load. Therefore, the processing unit 112, which is an example of an output means, can configure an example of second consideration output means that displays the second consideration information at the minimum load, corresponding to the minimum value of the feeder current for which the second current measurement data was acquired, by outputting the time transition graph in the graph display area of ​​the graph display screen corresponding to the current setting value and the minimum load.

[0073] 11 shows a voltage setting value confirmation screen 230, which can display the setting contents and the judgment results corresponding to the current setting value and the changed setting value of the voltage regulator. The voltage setting value confirmation screen 230 includes a current setting display field B11, a changed setting display field B12, and a judgment result display field B13.

[0074] The current setting display field B11 may be configured to include multiple display field cells displaying settings corresponding to the current setting value of the voltage regulator. For example, the current setting display field B11 may include multiple current tap value display fields displaying the tap values ​​of the voltage regulator corresponding to each hourly time slot from midnight to 11:00 PM on a single day. The current tap value display field may display the current tap value indicated by the tap value data included in the time-series measurement data of the voltage regulator acquired using the button display B01 in the first data read field in the measurement data read field A32 shown in FIG. 7. Alternatively, the current tap value may not be displayed. In addition, the current setting display field B11 may include multiple current setting display fields displaying the settings corresponding to the current setting value of the voltage regulator, such as the rated capacity, reference voltage, resistance component and reactor component of the setting impedance, operating time, dead band, and standard deviation. The current setting display field B11 also includes a current control display field displaying the current voltage control method of the voltage regulator.

[0075] The post-change setting display field B12 includes multiple post-change tap value display fields and multiple post-change setting display fields. The post-change tap value display field of the post-change setting display field B12 shows the tap value of the voltage regulator device corresponding to the post-change setting value, corresponding to the same time period as the current tap value display field of the current setting display field B11. The post-change setting display field of the post-change setting display field B12 shows the setting contents corresponding to each item, similar to the current setting display field of the current setting display field B11, corresponding to the post-change setting value of the voltage regulator device. The post-change setting display field B12 also includes a post-change control display field that shows the post-change voltage control method of the voltage regulator device.

[0076] The determination result display field B13 includes a plurality of current time zone determination display fields and a post-change time zone determination display field that display the results of determining whether the sending voltage and the destination voltage are within the specified value ranges corresponding to the current setting value and the changed setting value of the voltage regulator, corresponding to the same time zones as the current tap value display field in the current setting display field B11 and the post-change tap value display field in the post-change setting display field B12. The display device of the processing unit 112 and the output unit 113, which are examples of first current state output means, displayably output determination information indicating whether the current setting value of the voltage regulator is within the specified voltage range in the current time zone determination display field of the determination result display field B13. The display device of the processing unit 112 and the output unit 113, which are examples of first change output means, displayably output determination information indicating whether the changed setting value of the voltage regulator is within the specified voltage range in the post-change time zone determination display field of the determination result display field B13.

[0077] When outputting a voltage setting value confirmation screen including the determination result display field B13 in a displayable manner, the processing unit 112, which is an example of a range determination means, can determine an upper limit voltage Vh, which is the upper limit value of the transmission voltage, and a lower limit voltage Vl, which is the lower limit value of the transmission voltage, using time-series measurement data of the voltage regulator. The time-series measurement data of the voltage regulator can be acquired as a CSV file selected in the first data read field of the measurement data read field A32 in the acquisition information setting area of ​​the acquisition display area A03, the display example 212 of which is shown in FIG. 7. The processing unit 112, which is an example of an acquisition means, outputs the acquisition display area A03 including the acquisition information setting area in a displayable manner, thereby making it possible to acquire the time-series measurement data of the voltage regulator. Therefore, the processing unit 112, which is an example of a range determination means, can determine the upper limit value and the lower limit value of the transmission voltage using the time-series measurement data of the voltage regulator acquired by the acquisition means.

[0078] Furthermore, when outputting a voltage setting value confirmation screen including the determination result display field B13 in a displayable manner, the processing unit 112, which serves as an example of a range determination means, can use the low-voltage time-slot-specific voltage drop Eh to determine the upper limit voltage VLh, which is the upper limit value on the low-voltage side of the target voltage, and the lower limit voltage VLl, which is the lower limit value. The low-voltage time-slot-specific voltage drop Eh can be determined using the category code of the low-voltage demand category and detailed drop information. The category code of the low-voltage demand category can be input as the code selected in the category code input field A42 in the category selection setting area of ​​the consideration display area A04, the display example 213 of which is shown in FIG. 8. The detailed drop information can be input in the detailed information input field A53 in the detailed information input area of ​​the detailed display area A05, the display example 214 of which is shown in FIG. 9. The processing unit 112, which displays and outputs the category code input field A42 in the category selection setting area of ​​the consideration display area A04 and allows the category code to be input in response to an operation detected by the input unit 114, is an example of a category setting means capable of inputting a category code indicating a low-voltage demand category corresponding to maximum load and minimum load. The processing unit 112, which displays and outputs the detailed information input field A53 in the detailed information input area of ​​the detail display area A05 and allows the detailed drop information to be input in response to an operation detected by the input unit 114, is an example of a correction setting means capable of inputting detailed drop information for correcting the low-voltage voltage drop. Therefore, the processing unit 112, which is an example of a range determination means, can determine the upper and lower limit values ​​on the low-voltage side of the ultimate voltage using the category code input by the category setting means and the detailed drop information input by the correction setting means.

[0079] The graph display screen shown in FIG. 12 as a display example 240 includes four display areas, a first changed graph display area B21 to a fourth changed graph display area B24, that can display graphs of electrical quantities over time corresponding to the changed setting values ​​of the voltage regulator. The first changed graph display area B21 displays a graph of the time change of the upper limit of the transistor direct-down voltage corresponding to the changed setting value and the minimum load. The second changed graph display area B22 displays a graph of the time change of the low-voltage terminal voltage corresponding to the changed setting value and the minimum load. The third changed graph display area B23 displays a graph of the time change of the upper limit of the transistor direct-down voltage corresponding to the changed setting value and the maximum load. The fourth changed graph display area B24 displays a graph of the time change of the low-voltage terminal voltage corresponding to the changed setting value and the maximum load. The graph display screen may also be capable of displaying graphs of the time change of electrical quantities similar to the current setting values ​​corresponding to the changed setting value and the minimum or maximum load. The display devices of the processing unit 112 and output unit 113, which are examples of the second change output means, may be capable of displaying the time progression of electrical quantities corresponding to the changed setting values ​​of the voltage regulator in the first changed graph display area B21 to the fourth changed graph display area B24 included in the graph display screen of display example 240, or in any other graph display area.

[0080] The graph display area of ​​the graph display screen corresponding to the changed setting value and the maximum load can display a time transition graph as an example of first consideration information at the maximum load, corresponding to the maximum value of the feeder current for which the first current measurement data was acquired. In this case, the date on which the first current measurement data was acquired is identified from the maximum current information, and a time transition graph can be displayed in the graph display area of ​​the graph display screen corresponding to the changed setting value and the maximum load using time-series measurement data of the voltage regulator and the voltage acquisition device acquired corresponding to that date, for example, based on the passing current and power factor of the voltage regulator, the low-voltage side voltage of the voltage acquisition device, and other measurement results, as well as the changed setting impedance. Therefore, the processing unit 112, which is an example of an output means, can constitute an example of first consideration output means that displays the time transition graph in the graph display area of ​​the graph display screen corresponding to the changed setting value and the maximum load, corresponding to the maximum value of the feeder current for which the first current measurement data was acquired.

[0081] The graph display area of ​​the graph display screen corresponding to the changed setting value and the minimum load can display a time transition graph as an example of second consideration information at the minimum load, corresponding to the minimum value of the feeder current for which the second current measurement data was acquired. In this case, the date on which the second current measurement data was acquired is identified from the minimum current information, and a time transition graph can be displayed in the graph display area of ​​the graph display screen corresponding to the changed setting value and the minimum load using time-series measurement data of the voltage regulator and the voltage acquisition device acquired corresponding to that date, for example, based on the passing current and power factor of the voltage regulator, the low-voltage side voltage of the voltage acquisition device, and other measurement results, as well as the changed setting impedance. Therefore, the processing unit 112, which is an example of an output means, can constitute an example of second consideration output means that displays the time transition graph in the graph display area of ​​the graph display screen corresponding to the changed setting value and the minimum load, corresponding to the minimum value of the feeder current for which the second current measurement data was acquired.

[0082] In this example of setting value analysis, in the first current status graph display area B01 of the graph display screen corresponding to the display example 220 of FIG. 10, the autorecloser with identification number TRs6424 among the voltage acquisition devices exceeds the specified voltage value of 107 [V] during the time period from time T01 corresponding to 5:00 to time T02 corresponding to 20:00. Also, in the second current status graph display area B02, the autorecloser with identification number TRs6424 shows a voltage drop trend during this time period, increasing to a maximum of 249 [V]. In the third current status graph display area B03 and the fourth current status graph display area B04, the current and power factor for the same time period show a maximum leading power factor of 0.25, indicating a very advanced phase.

[0083] When the ultimate voltage exceeds the specified voltage value, the lifespan of the device, such as the continuous lighting time of a light bulb, is significantly shortened compared to its rated lifespan. As a specific example, a test bulb was used, rated at 40W and 100V, with a rated lifespan of 1,000 hours (approximately 42 days). When this bulb was lit on a normal voltage circuit with an average of 105V and a high voltage circuit with an average of 110V, the continuous lighting time was 527 hours (approximately 22 days) with the normal voltage circuit and 316 hours (approximately 31 days) with the high voltage circuit. These results are consistent with the power supply voltage characteristics of light bulb life, and it was confirmed that an increase in voltage also affects the lifespan of the device.

[0084] In the voltage setting value confirmation screen corresponding to display example 230 in Figure 11, multiple current time zone determination display fields included in the determination result display field B13 display an "x" mark indicating that all display fields are not within the specified value range for the current setting value. In this case, the post-change setting display field B12 displays percentage values ​​different from the current setting values ​​for the resistance and reactor components of the setting impedance. In this example, to suppress voltage in response to a leading power factor, the reactor component is significantly changed from 4% to 7%, and the resistance component is changed from 4% to 2%. This reduced the upper and lower limits, but did not eliminate the upper limit exceedance. Therefore, the voltage control method is changed from program control (PC) to a combination of LDC control. By lowering the reference voltage for daytime hours from 6600 [V] to 6540 [V], all time zones are within the specified voltage range, as shown in the first post-change graph display area B21 of the graph display screen corresponding to display example 240 in Figure 12.

[0085] Referring to Figure 13, as an example of verification after setting review, we will explain the case where the setting value of the automatic voltage regulator with identification number TVs6225 is changed. In this case, the time transition of the voltage of the voltage acquisition device with identification number TRs6424, as shown in Figure 13(A), corresponds to the current setting value before the change, and the maximum voltage value was 109 [V], which exceeded the upper limit voltage value. In contrast, with the changed setting value, the maximum voltage value was 107 [V] or less, which was confirmed to be within the voltage specification range. Furthermore, as shown in Figure 13(B), the results of voltage measurement performed again at the annual report measurement point of feeder F01 showed that the maximum voltage value of the actual measurement value was 106.3 [V], which was confirmed to be within the voltage specification range. The voltages of other voltage acquisition devices were also confirmed to be within the voltage specification range. In this way, it was confirmed that the feedback-based voltage setting can be supported and appropriate setting values ​​can be obtained.

[0086] The present invention may be applied to bus voltage setting. For example, in a bank BK01 having a shunt resistor, harmonic measurement data may be used to assist in bus voltage setting using a similar calculation principle.

[0087] The graph display screen shown in example display 250 in Figure 14 includes four graph display areas capable of graphically displaying the time evolution of various electrical quantities corresponding to the current setting of a voltage regulator, such as a load ratio control transformer (LRT). Each display area in example display 250 displays a graph of the time evolution of various electrical quantities, similar to example display 220 in Figure 10. At this time, the voltage acquisition device with identification number TVs4130 exceeds the specified voltage range, corresponding to the current setting and the minimum load. Furthermore, the voltage drop is shown to have increased to a maximum of 73 V. Due to the reverse power flow from distributed power sources such as biomass and the influence of power factor correction capacitors connected by high-voltage consumers, the leading power factor reaches a maximum of 0.41, indicating a significant phase advance.

[0088] The graph display screen shown in example display 260 in Figure 15 includes four graph display areas that can display the time transitions of various electrical quantities when considering setting changes based on example display 250. Each display area in example display 260 displays a time transition graph of various electrical quantities, similar to example display 240 in Figure 12. Here, the current voltage control method, PC, is changed to a combination of PC and LDC control (PC+LDC), and the resistance component of the setting impedance is set to 0.3 [Ω] and the reactor component to 0.1 [Ω], thereby suppressing fluctuations due to power factor. PC voltage control reduces the voltage between 1:00 and 7:00 AM and between 7:00 PM and 9:00 PM. In contrast, it increases the voltage between 9:00 PM and 11:00 PM. This confirmed that the voltage was within the specified range. Therefore, it was confirmed that the system can support the consideration of voltage setting using the feedback method and obtain appropriate setting values ​​for bus voltage setting.

[0089] An example of verification of the operational effects of the information processing device 100 according to this embodiment will be described. This verification compared the verification time of the conventional method for examining the setting of an automatic voltage regulator with the verification time of the present invention using a feedback formula.

[0090] The examination time shown in Fig. 16 for Comparative Example 300 was reduced from 93 minutes in the conventional method to 51 minutes in the present invention. The conventional method acquired a small amount of measurement data, but required a lot of work to input the measurement data into the examination tool. In contrast, the information processing device 100 of the present invention acquired a large amount of measurement data, but by speeding up the import of the measurement data, it was possible to reduce the time by 42 minutes compared to the conventional method.

[0091] Suppose a certain electric power company inspected and replaced 185 automatic voltage regulators in one year. In this case, the time spent on voltage regulation was reduced by 130 hours, which translates to a reduction of approximately 18 working days at 7.4 hours per day.

[0092] In this way, by using the information processing device 100 according to this embodiment, when examining the voltage setting of a voltage regulator, the workload can be reduced and the work time can be shortened, and the accuracy of examining the voltage setting of a voltage regulator can be improved.

[0093] The present invention is not limited to the above-described embodiments and may be modified and applied in various ways. In particular, the present invention is not limited to those having all of the technical features described in the above-described embodiments, but may have some of the configurations and functions described in the embodiments so as to solve at least one problem in the prior art. When a subordinate concept is described in the above-described embodiments, a generic concept invention using homologous or similar concepts, or a generic concept invention using common properties, is also included in the present invention and may have some of the structures and characteristics so as to solve at least one problem in the prior art.

[0094] The output of the review information is not limited to display on a display device of the output unit 113, but may be printing by a printing device, outputting audio by an audio output device, or any other output that allows the user of the information processing device 100 to recognize the contents of the review information. The review information is not limited to being output by the information processing device 100, but may be transmitted by electrical communication as a signal including the review information, or various data including the review information may be recorded on a recording medium so that the review information can be output on a terminal device other than the information processing device 100.

[0095] The display content of the consideration information can be changed arbitrarily according to the specifications and programs of the information processing device 100; for example, it may be possible to output judgment information indicating whether or not the voltage is within the specified value range in accordance with the combination of an arbitrary voltage regulator and voltage acquisition device, or to display a graph of the time progression of various electrical quantities, or it may be possible to execute only one of these.

[0096] 3 is not limited to a process in which all of the process is executed without stopping from the timing of execution start, and some of the process may be executed at different timings. For example, following the process of outputting a setting value consideration menu screen so that it can be displayed using menu screen display information included in the various display information 135 stored in the storage unit 111, the process of acquiring information specifying a voltage regulator device, information selecting a voltage acquisition device, and other information that can be entered on the setting value consideration menu screen as input results may be executed at multiple timings while saving some of the input information until all of the information is entered. Furthermore, after the input results on the setting value consideration menu screen are acquired, the display of the determination results corresponding to the current setting values ​​and the graphs of various electrical quantities may be executed at a first timing, and the display of the determination results corresponding to the changed setting values ​​and the graphs of various electrical quantities may be executed at a second timing different from the first timing.

[0097] The functions of the information processing device 100 are not limited to those realized by a single device, but may be realized by multiple devices connected to each other so as to be able to communicate with each other. The measurement data 200 is not limited to being entirely stored in the storage unit 111 of the information processing device 100, but may be partially or entirely stored in an external storage device via a network and be obtainable by communication processing using the communication unit 115.

[0098] The information processing device 100 is not limited to a device in which the processing unit 112 executes multiple program modules included in the review support program 120 stored in the memory unit 111, and for example, the functional configuration realized by some or all of the programs may be realized by hardware.

[0099] The information processing device 100 may be realized as a processing unit provided on a cloud as a computer using a processor. The voltage adjustment operation support process and the reclosing operation support process executed by the information processing device 100 are not limited to those realized by the processing unit 112 executing a program stored in the storage unit 111, but may be realized as the program itself or as a recording medium on which the program is recorded.

[0100] The program executable by the information processing device 100 may be stored and distributed on a non-transitory recording medium readable by a processing unit, such as a flexible disk, a CD-ROM (Compact Disk Read-Only Memory), a DVD (Digital Versatile Disk), or an MO (Magneto-Optical Disk), and the program may be installed in the processing unit to configure a device capable of executing the processing of the above-described embodiments.

[0101] The above embodiments are merely examples, and the present invention is not limited to these. Various embodiments are possible within the scope of the invention as defined in the claims. The components described in the embodiments and variations can be freely combined. Furthermore, inventions equivalent to the inventions defined in the claims are also included in the present invention. In addition, even if the components of the inventions defined in the claims have the same names as the components described in the above embodiments, they are not limited to the components described in the above embodiments themselves, and can be modified and applied as appropriate. [Explanation of symbols]

[0102] 100 Information processing device 111 Storage section 112 Processing section 113 Output section 114 Input section 120 Study Support Program 121 Menu Display Module 122 Display data creation module 123 Graph Display Module 124 Setting value confirmation display module 130 Study Support Information 131 Targeted Information 132 Equipment selection information 133 Measurement-related information 134 Regulation Discrimination Information 135 Various display information

Claims

1. a designation means for inputting designation information for a voltage adjustment device to be adjusted; a selection means capable of inputting selection information corresponding to a voltage acquisition device among a plurality of devices installed on a line of a power distribution system; an acquisition means capable of acquiring time-series measurement data of the voltage adjustment device and the voltage acquisition device together with measurement data of the feeder current; an output means for outputting, in a displayable manner, examination information corresponding to the setting value of the voltage regulator for which designation information is input by the designation means, using the measurement data acquired by the acquisition means; An information processing device comprising:

2. The output means a first current state output means for displayably outputting determination information indicating whether or not a current setting value of the voltage regulator, the measurement data of which is acquired by the acquisition means, is within a range of a specified voltage value; and a second current state output means for outputting a graph of time transitions of various electrical quantities corresponding to the current setting values ​​of the voltage regulator whose measurement data has been acquired by the acquisition means. The information processing device according to claim 1 .

3. a change means for inputting setting change information when changing the setting value of the voltage regulator for which the designation information has been input by the designation means, The output means a first change output means for outputting a graph of time transitions of various electrical quantities corresponding to the changed setting values ​​of the voltage regulator to which the setting change information has been input by the change means; and a second change output means for displayably outputting determination information indicating whether the changed setting value of the voltage regulator device to which setting change information has been input by the change means is within a range of a specified voltage value. The information processing device according to claim 1 .

4. The acquisition means a first acquisition means for acquiring first current measurement data corresponding to a maximum value of the feeder current as measurement data of the feeder current; a second acquisition means for acquiring second current measurement data corresponding to a minimum value of the feeder current as the measurement data of the feeder current, The output means a first examination output means for displayably outputting first examination information at the time of maximum load in accordance with a maximum value of the feeder current obtained by the first current measurement data acquisition means; and a second examination output means for displayably outputting second examination information at a minimum load corresponding to a minimum value of the feeder current for which the second current measurement data is acquired by the second acquisition means. The information processing device according to claim 1 .

5. a range determination means for determining a range of a specified voltage value; the range determining means is capable of determining upper and lower limit values ​​of the delivery voltage using time-series measurement data of the voltage regulator device acquired by the acquiring means; The information processing device according to claim 2 .

6. a range determination means for determining a range of a specified voltage value; a classification setting means for inputting a classification code indicating a low-voltage demand classification corresponding to a maximum load and a minimum load; a correction setting means for inputting detailed voltage drop information for correcting the low-voltage voltage drop; the range determination means is capable of determining upper and lower limit values ​​on the low-voltage side of the ultimate voltage using the category code input by the category setting means and the detailed drop information input by the correction setting means. The information processing device according to claim 2 .

7. The output means and a review output means for displayably outputting review explanation information indicating a review procedure for the setting value when review information corresponding to the setting value of the voltage regulator is displayed. The information processing device according to claim 1 .

8. The output means a selection output means for displayably outputting selection explanation information corresponding to the selection information that can be input by the selection means; and an acquisition output means for displayably outputting acquisition explanation information corresponding to the measurement data that can be acquired by the acquisition means. The information processing device according to claim 1 .

9. An information processing method by an information processing device, a designation step for allowing input of designation information for a voltage adjustment device to be set; a selection step of allowing input of selection information corresponding to a voltage acquisition device among a plurality of devices installed on a line of the power distribution system; an acquisition step of acquiring time-series measurement data of the voltage adjustment device and the voltage acquisition device together with measurement data of the feeder current; an output step of displayably outputting, using the measurement data acquired in the acquisition step, examination information corresponding to the setting value of the voltage regulator for which designation information has been input in the designation step; An information processing method comprising:

10. Computer, a designation means for inputting designation information for a voltage regulator to be adjusted; a selection means capable of inputting selection information corresponding to a voltage acquisition device among a plurality of devices installed on a line of the power distribution system; an acquisition means capable of acquiring time-series measurement data of the voltage adjustment device and the voltage acquisition device together with measurement data of the feeder current; an output means for outputting, in a displayable manner, examination information corresponding to the setting value of the voltage regulator for which designation information is input by the designation means, using the measurement data acquired by the acquisition means; A program that functions as a

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