HMI device, substation monitoring and control system, substation monitoring and control method, and program

Abstract

To provide an HMI device capable of controlling equipment in a substation from a substation monitoring and control system even if a station-level control circuit changeover switch cannot be changed over while the control authority remains in a remote state in which a higher-level control station has control authority. The HMI device includes a storage unit that stores information indicating the state of a station-level control circuit changeover switch provided on a communication path connecting a device installed in the higher-level control station and the station level of the substation monitoring and control system, and a changeover unit that changes the state of the station-level control circuit changeover switch based on an operation on an operating means displayed on an interface screen.

Description

[Technical field]

[0001] The present invention relates to an HMI device, a substation monitoring and control system, a substation monitoring and control method, and a program. [Background technology]

[0002] Generally, a substation monitoring and control system is equipped with a control circuit changeover switch that switches between a remote control state in which equipment such as circuit breakers and switches within the substation are controlled from a higher-level control center, and a local control state in which equipment is controlled from within the substation.

[0003] Patent Document 1 discloses a substation monitoring and control system equipped with an HMI (Human Machine Interface) that controls the devices in the substation. This HMI has 43 switches that switch the control authority of each device, and displays the symbols of devices that have control authority and those that do not based on the state of the 43 switches on a single line diagram of the power system. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-044510 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in a substation monitoring and control system in which a remote monitoring and control device installed on a communication path connecting a device installed in a higher-level control center and the station level of a substation is equipped with a station-level control circuit changeover switch, there is a problem that if the station-level control circuit changeover switch is unable to switch to a remote state in which the higher-level control center has control due to some factor (for example, an abnormality in the remote monitoring and control device), it may become impossible to control the substation equipment from the substation monitoring and control system.

[0006] The present disclosure has been made in consideration of the above circumstances, and provides an HMI device, a substation monitoring and control system, a substation monitoring and control method, and a program that can control substation equipment from the substation monitoring and control system even if the station-level control circuit changeover switch remains in a remote state where control authority is held by a higher-level control station and cannot be switched. [Means for solving the problem]

[0007] This disclosure has been made to solve the above-mentioned problems, and one aspect of the present disclosure is an HMI (Human Machine Interface) device in a substation monitoring and control system, which includes a memory unit that stores information indicating the state of a station-level control circuit changeover switch provided on a communication path connecting a device installed in a higher-level control station and the station level of the substation monitoring and control system, and a switching unit that changes the state of the station-level control circuit changeover switch based on an operation on an operating means displayed on an interface screen.

[0008] Another aspect of the present disclosure is the above-mentioned HMI device, wherein the memory unit stores, as the state of the station-level control circuit changeover switch, an actual state of the station-level control circuit changeover switch and a control rights management state of the station-level control circuit changeover switch, and the switching unit changes the control rights management state of the station-level control circuit changeover switch stored in the memory unit based on the operation to a state in which equipment in the substation can be controlled from the substation monitoring and control system.

[0009] Another aspect of the present disclosure is the above-mentioned HMI device, which is provided with a warning display unit that displays a warning regarding the state of the station-level control circuit changeover switch on the interface screen based on the operation before the switching unit changes the state of the station-level control circuit changeover switch.

[0010] Another aspect of the present disclosure is the above-mentioned HMI device, which is provided with a user verification unit that compares the user authentication information entered by the user with pre-stored authentication information based on the operation before the switching unit changes the state of the station-level control circuit changeover switch.

[0011] Another aspect of the present disclosure is a substation monitoring and control system comprising: a memory unit that stores information indicating a state of a station-level control circuit changeover switch provided on a communication path connecting an apparatus installed in a higher-level control station and a station level of the substation monitoring and control system; and a switching unit that changes the state of the station-level control circuit changeover switch based on an operation on an operating means displayed on an interface screen.

[0012] Another aspect of the present disclosure is the substation monitoring and control system described above, wherein the memory unit stores, as the state of the station-level control circuit changeover switch, an actual state of the station-level control circuit changeover switch and a control rights management state of the station-level control circuit changeover switch, and the switching unit changes the control rights management state of the station-level control circuit changeover switch stored in the memory unit based on the operation to a state in which equipment in the substation can be controlled from the substation monitoring and control system.

[0013] Another aspect of the present disclosure is the above-mentioned substation monitoring and control system, which includes a warning display unit that displays a warning regarding the state of the station-level control circuit changeover switch on the interface screen based on the operation before the switching unit changes the state of the station-level control circuit changeover switch.

[0014] Another aspect of the present disclosure is the above-mentioned substation monitoring and control system, which includes a user verification unit that compares input user authentication information with pre-stored authentication information based on the operation before the switching unit changes the state of the station-level control circuit changeover switch.

[0015] Another aspect of the present disclosure is the substation monitoring and control system described above, further including a remote monitoring and control device, a bay control device, a local control panel, and a local panel.

[0016] Another aspect of the present disclosure is a substation monitoring and control method comprising the steps of: storing information indicating a state of a station-level control circuit changeover switch provided on a communication path connecting an apparatus installed in a higher-level control station and a station level of a substation monitoring and control system; and changing the state of the station-level control circuit changeover switch based on an operation on an operating means displayed on an interface screen.

[0017] Another aspect of the present disclosure is a program for causing a computer to function as an HMI (Human Machine Interface) device in a substation monitoring and control system, the HMI device comprising: a memory unit that stores information indicating a state of a station-level control circuit changeover switch provided on a communication path connecting a device installed in a higher-level control station and a station level of the substation monitoring and control system; and a switching unit that changes the state of the station-level control circuit changeover switch based on an operation on an operating means displayed on an interface screen. Effect of the Invention

[0018] According to this disclosure, the HMI device, substation monitoring and control system, control method, and program enable control of substation equipment from the substation monitoring and control system even if the station-level control circuit changeover switch cannot be switched while the control is still in a remote state where the higher-level control center has control authority. [Brief description of the drawings]

[0019] [Figure 1] 1 is a schematic block diagram showing a configuration of a substation monitoring and control system 100 according to a first embodiment of the present disclosure. [Diagram 2]FIG. 2 is a schematic block diagram showing the configuration of an HMI 22 in the embodiment. [Diagram 3] 4 is a schematic diagram showing an example of an interface screen of an HMI 22 in the embodiment. FIG. [Figure 4] 4 is a table showing an example of the contents stored in a storage unit 201 in the embodiment. [Diagram 5] 4 is a flowchart illustrating the operation of the HMI 22 in the embodiment. [Figure 6] FIG. 11 is a schematic block diagram showing a configuration of an HMI 22a according to a second embodiment of the present disclosure. [Figure 7] 13 is a flowchart illustrating the operation of the HMI 22a in the embodiment. [Figure 8] FIG. 2 is an explanatory diagram illustrating a hardware configuration of each device according to each embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] <First embodiment> Hereinafter, a first embodiment of the present disclosure will be described with reference to the drawings. FIG. 1 is a schematic block diagram showing a configuration of a substation monitoring and control system 100 according to a first embodiment of the present disclosure. The substation monitoring and control system 100 controls devices such as a switch 61 and a circuit breaker 71 of a line A1, a switch 62 and a circuit breaker 72 of a line A2, and a line A Trans 41 in a substation. The substation monitoring and control system 100 is communicably connected to devices installed in upper control centers 11 and 12 via a network N1. The devices installed in the upper control centers 11 and 12 are devices that monitor and control one or more substations. Note that the number of upper control centers, lines, switches, and circuit breakers in FIG. 1 is an example, and may be different from that in FIG. 1.

[0021] The substation monitoring and control system 100 includes a TC (Tele-Control, remote monitoring and control device) 21, an HMI (Human Machine Interface, HMI device) 22, IEDs (Intelligent Electric Devices) 31, 32, MUs (Merging Units) 51, 52, a station bus B1, and a process bus B2. Although only one process bus B2 is shown in Fig. 1, multiple process buses B2 may be provided, for example, for each line. The substation monitoring and control system 100 may also include a local control panel (not shown).

[0022] The substation monitoring and control system 100 is hierarchically divided into at least a station level and a process level. The hierarchy of the substation monitoring and control system 100 increases as one moves upward in Fig. 1, with the station level being the highest level in the substation monitoring and control system 100 and each device being the lowest level. The TC 21, HMI 22, IED 31, IED 32, and line A Trans 41 are communicatively connected to a station bus B1, which is a LAN (Local Area Network) at the station level. The IEDs 31, 32, MUs 51, and 52 are communicatively connected to a process bus B2, which is a LAN at the process level.

[0023] The TC 21 is provided on a communication path connecting the upper control centers 11, 12 and the station level of the substation monitoring and control system 100, and includes a station level 43 switch (control circuit changeover switch) 21T. The 43 switch 21T may be a control circuit changeover switch with a control device number (Japan Electrical Manufacturers' Association standard JEM1090) 43, or may be a LocSta (Lock State) switch of IEC61850. The TC 21 may be realized by one or more computers reading and executing a program. The 43 switch 21T can be switched to one of three states, a first upper state R1, a second upper state R2, and a local state HMI, and includes an operation interface (for example, a three-contact rotary switch) for switching to one of the three states. The first upper state R1 is a state in which the control right of the hierarchy lower than the TC 21 is given to the upper control center 11. The second upper state R2 is a state in which the control right of the hierarchy lower than the TC 21 is given to the upper control center 12. The local state HMI is a state in which control authority of a hierarchy lower than the TC 21 is given to the substation monitoring and control system 100 (HMI 22).

[0024] The HMI 22 is a device that has at least an input interface such as a mouse, keyboard, or touch panel, and an interface screen such as a liquid crystal display or an organic electroluminescence display, and is used to operate, control, and monitor the substation equipment from within the substation. The HMI 22 may be realized by one or more computers reading and executing programs.

[0025] The IED 31 is a bay control device for the line A1, and includes a 43 switch 31A of the bay control device for the line A1. A 43 switch 31L of a local control panel (not shown) for the line A1 is also connected to the IED 31. The IED 32 is a bay control device for the line A2, and includes a 43 switch 32A of the bay control device for the line A2. A 43 switch 32L of a local control panel for the line A2 is also connected to the IED 32. Each of the IEDs 31 and 32 may be realized by one or more computers reading and executing a program.

[0026] The 43 switch 31A of the bay control device of the line A1 can be switched to one of two states, a local state L or a remote state R, and is provided with an operation interface (e.g., a two-contact rotary switch) for switching to one of the two states. The local state L of the 43 switch 31A is a state in which control rights of a hierarchy lower than the bay control device of the line A1 are given to the bay control device of the line A1. The remote state R of the 43 switch 31A is a state in which control rights of a hierarchy lower than the bay control device of the line A1 are given to a hierarchy higher than the bay control device of the line A1 (e.g., HMI 22, upper control stations 11, 12).

[0027] The 43 switch 31L of the local control panel of line A1 can be switched to one of two states, local state L and remote state R, and is provided with an operation interface (e.g., a two-contact rotary switch) for switching to one of the two states. The local state L of the 43 switch 31L is a state in which control rights of a hierarchy lower than the local control panel of line A1 are given to the local control panel of line A2. The remote state R of the 43 switch 31A is a state in which control rights of a hierarchy lower than the local control panel of line A1 are given to a hierarchy higher than the local control panel of line A1 (e.g., the bay control device of line A1, the HMI 22, and higher-level control stations 11 and 12).

[0028] The 43 switches 32A and 32L are different in that the target devices are devices related to the line A2, but are otherwise similar to the 43 switches 31A and 31L.

[0029] MU51 (local board) of line A1 controls the switchgear 61, circuit breaker 71, and other equipment on line A1. MU51 is equipped with switches 51S, 51C for the switchgear 61 and circuit breaker 71, which are equipment on line A1. In addition, the local boards for the switchgear 61 and circuit breaker 71 are equipped with operation interfaces for operating the opening and closing of the switchgear 61 and circuit breaker 71.

[0030] The 43 switch 51S of the switch 61 can be switched to one of two states, a local state L and a remote state R, and is provided with an operation interface (e.g., a two-contact rotary switch) for switching to one of the two states. The local state L of the 43 switch 51S is a state in which the control right of the switch 61 is given to the local panel of the switch 61. The remote state R of the 43 switch 51S is a state in which the control right of the switch 61 is given to a higher hierarchy than the local panel of the switch 61 (e.g., the local control panel of the line A1, the bay control device of the line A1, the HMI 22, and the higher-level control stations 11 and 12).

[0031] Similarly, the 43 switch 51C of the circuit breaker 71 can be switched to either of two states, a local state L or a remote state R, and is provided with an operation interface (e.g., a two-contact rotary switch) for switching to either of the two states. The local state L of the 43 switch 51C is a state in which the control right of the circuit breaker 71 is given to the local panel of the circuit breaker 71. The remote state R of the 43 switch 51C is a state in which the control right of the circuit breaker 71 is given to a higher hierarchy than the local panel of the circuit breaker 71 (e.g., the local control panel of the line A1, the bay control device of the line A1, the HMI 22, or higher-level control stations 11 and 12).

[0032] MU 52 (local board) of line A2 controls the switchgear 62, circuit breaker 72, and other equipment on line A2. MU 52 is equipped with switches 52S, 52C for each of the switchgear 62 and circuit breaker 72, which are equipment on line A2. In addition, the local boards for each of the switchgear 62 and circuit breaker 72 are equipped with operation interfaces for operating the opening and closing of the switchgear 62 and circuit breaker 72.

[0033] The 43 switch 52S of the switch 62 can be switched to either of two states, a local state L or a remote state R, and is provided with an operation interface (e.g., a two-contact rotary switch) for switching to either of the two states. The local state L of the 43 switch 52S is a state in which the control right of the switch 62 is given to the local panel of the switch 62. The remote state R of the 43 switch 52S is a state in which the control right of the switch 62 is given to a higher hierarchy than the local panel of the switch 62 (e.g., the local control panel of the line A2, the bay control device of the line A2, the HMI 22, and the higher-level control stations 11 and 12).

[0034] Similarly, the 43 switch 52C of the circuit breaker 72 can be switched to either of two states, a local state L or a remote state R, and is provided with an operation interface (e.g., a two-contact rotary switch) for switching to either of the two states. The local state L of the 43 switch 52C is a state in which control of the circuit breaker 72 is given to the local panel of the circuit breaker 72. The remote state R of the 43 switch 52C is a state in which control of the circuit breaker 72 is given to a higher hierarchy than the local panel of the circuit breaker 72 (e.g., the local control panel of line A2, the bay control device of line A2, the HMI 22, or higher-level control stations 11 and 12).

[0035] Normally, for the HMI 22 to control, for example, the switch 61, all of the 43 switches 31A, 31L, and 51S on the path to the switch 61, which are at a lower level than the HMI 22, must be in the local state L, and the 43 switch 21T must also be in the local state HMI. However, if there is an abnormality in the TC 21, it may not be possible to control it from the higher-level control centers 11 and 12, and the state of the 43 switch 21T may not be changed from the first higher-level state R1 or the second higher-level state R2. In such a case, the HMI 22 of this embodiment displays an operation means (such as a button) for changing the state of the 43 switch 21T on the interface screen so that each device in the substation can be controlled from the HMI 22.

[0036] 2 is a schematic block diagram showing the configuration of the HMI 22 in this embodiment. The HMI 22 includes a storage unit 201, an information display unit 202, a 43 switch state determination unit 203, a S / W (Software) format switch mode management unit 204, a warning dialogue display unit 205 (warning display unit), a 43 switch state switching unit 206 (switching unit), a change detection unit 207, a control right determination unit 208, a list display unit 209, a device symbol identification display unit 210, a device selection command output unit 211, a warning unit 212, a switch specification unit 213, a switch information display unit 214, a changeover switch control unit 215, a switch determination unit 216, and a switching impossible message display unit 217.

[0037] The storage unit 201 stores information indicating the states of the 43 switches 21T, 31A, 31L, 32A, 32L, 51S, 51C, 52S, and 52C. The storage unit 201 stores information indicating the actual state of the 43 switch 21T and information indicating the state in terms of control management as information indicating the state of the 43 switch 21T. The information display unit 202 displays the information stored in the storage unit 201 on an interface screen. The 43 switch state determination unit 203 starts processing when, for example, a device on a single line diagram displayed on the interface screen is selected, and determines the state of the 43 switch 21T at the station level. If the 43 switch 21T is a local state HMI, the processing is transferred to the control right determination unit 208. If the 43 switch 21T is not a local state HMI (in the case of the first upper state R1 or the second upper state R2), the processing is transferred to the S / W type switch mode management unit 204. The condition for transferring processing from the 43 switch state determination unit 203 to the S / W type switch mode management unit 204 may be that the 43 switch 21T is not a local state HMI, and that an abnormality in the 43 switch 21T is detected.

[0038] The S / W type switch mode management unit 204 manages whether or not the S / W type switch mode is active. The S / W type switch mode is a mode in which the state of the 43 switch 21T in terms of control right management is set to a local state, separate from the actual state of the 43 switch 21T. Information indicating the state of the 43 switch 21T in terms of control right management is also stored in the storage unit 201. When the user presses the 43 switch at the station level on the interface screen, processing is transferred to a warning dialog display unit 205.

[0039] The warning dialogue display unit 205 displays a warning dialogue on the interface screen as a confirmation before switching the state of the control right management of the 43 switch 21T to the local state based on the pressing of the 43 switch at the station level on the interface screen. First, the warning dialogue display unit 205 displays a dialogue on the interface screen stating "Have you disconnected the connection to the higher level control station?". The user can press the OK button or the Cancel button in the dialogue. When the OK button is pressed, the warning dialogue display unit 205 displays a dialogue on the interface screen stating "Have you contacted the local worker?". When the OK button in the dialogue is pressed, the process moves to the 43 switch state switching unit 206. In either dialogue, when the Cancel button is pressed, the device is deselected.

[0040] The 43 switch state switching unit 206 changes the state of the 43 switch 21T based on an operation on the operation means displayed on the interface screen. The change result is reflected in the storage unit 201. Since the 43 switch state switching unit 206 cannot change the actual state of the 43 switch 21T, which is a physical switch, for example, the 43 switch state switching unit 206 changes the state of the control right management of the 43 switch 21T stored in the storage unit 201 to a local state (a local state in S / W format), that is, a state in which the devices in the substation can be controlled from the substation monitoring and control system 100, based on an operation on the operation means displayed on the interface screen. This change is made when processing is transferred from the warning dialogue display unit 205. When the state of the control right management of the 43 switch 21T is switched to the local state, the S / W format switch mode management unit 204 transitions from a normal mode to a S / W format switch mode, and processing is transferred to the control right determination unit 208.

[0041] The change detection unit 207 detects state changes of each of the 43 switches 21T, 31A, 31L, 32A, 32L, 51S, 51C, 52S, and 52C. The detection result by the change detection unit 207 may be reflected in the information stored in the storage unit 201. The control right determination unit 208 determines whether or not the control right from the HMI 22 is established for each device based on the information stored in the storage unit 201. Even if the actual state of the 43 switch 21T is not a local state HMI, if the state of the 43 switch 21T in terms of control right management is a local state in S / W format, the control right determination unit 208 determines whether or not the control right is established in the same way as when the 43 switch 21T is a local state HMI. The list display unit 209 displays the state of the 43 switch related to the device specified by the user in a list on the interface screen. The equipment symbol identification and display unit 210 identifies the symbol of each equipment as a single connection diagram depending on whether or not the control right is established, and displays it on the interface screen.

[0042] The device selection command output unit 211 outputs a device selection command to an IED on a path to the selected device among the IEDs 31 and 32. After the device selection command output unit 211 outputs the device selection command, the S / W type switch mode management unit 204 transitions from the S / W type switch mode (1) to the normal mode (0).

[0043] The warning unit 212 displays a warning message on the interface screen when the control right of the device designated by the user is not established. The switch identification unit 213 identifies the switch 43 that caused the determination when the control right of the device designated by the user is not established as the switch to be changed. The switch information display unit 214 displays information about the switch to be changed on the interface screen.

[0044] The changeover switch control unit 215 changes the state of the switch to be changed specified by the switch specifying unit 213. The switch determination unit 216 determines whether the switch to be changed is a switch 43 whose state is permitted to be changed by the changeover switch control unit 215. The changeover impossible message display unit 217 displays a message when the changeover switch control unit 215 cannot change the state.

[0045] FIG. 3 is a schematic diagram showing an example of an interface screen of the HMI 22 in this embodiment. The interface screen G1 in FIG. 3 is a screen that displays a single-line diagram (skeleton diagram of a substation) and includes a button BT1 (operation means, 43 switch in S / W format) for operating the state of the 43 switch 21T. In the single-line diagram, the symbol of each device may be displayed by identifying whether or not the control right from the HMI 22 is established for that device by color or the like. The button BT1 may be displayed always operable in the interface screen G1, or may be displayed operable when the 43 switch 21T is not in the local state HMI when the user selects the device, or may be displayed operable only when the 43 switch 21T or the TC 21 is abnormal. In addition, the button BT1 being displayed operable may mean that the display mode is different between when it is operable and when it is not operable, such as when the button BT1 is grayed out when it is not operable, or the button BT1 may be included in a dialog or the like that is displayed when it becomes operable.

[0046] FIG. 4 is a table showing an example of the contents stored in the storage unit 201 in this embodiment. The storage unit 201 stores information indicating the state of each 43 switch as shown in FIG. 4. The "43 switch" column in FIG. 4 stores information identifying the 43 switch, and the "state" column stores information indicating the state of the 43 switch. "Station level" in the "43 switch" column in the No. 1 row is information identifying the 43 switch 21T, and "R1" in the "state" column is information indicating the first higher state R1. In addition, when the second higher state R2 and the local state HMI are indicated, the "state" column is, for example, "R2" and "HMI", respectively. This No. 1 row is information indicating the actual state of the 43 switch 21T. In the No. 2 row, the "Station Level (S / W)" in the "43 Switch" column is information for identifying the 43 Switch 21T, and the "Status" column is information indicating a control management status, and the "S / W Local" in the "Status" column is information indicating a local status in S / W format. Note that when indicating the normal mode, the "Status" column is, for example, "Normal."

[0047] "Bay A1" in the "43 Switch" column in row No. 3 is information identifying the 43 Switch 31A, and "Remote" in the "Status" column is information indicating the remote status R. In the case of a local status, the "Status" column is, for example, "Local." "Local A1" in the "43 Switch" column in row No. 4 is information identifying the 43 Switch 31L, and "Remote" in the "Status" column is information indicating the remote status R.

[0048] 5 is a flow chart for explaining the operation of the HMI 22 in this embodiment. First, when the user selects a device to be controlled from the single-line diagram of the substation monitoring and control system 100 on the interface screen (step S01), an operation check test is performed (step S02). If the result of the operation check test is unsuccessful (step S02-fail), the device selected in step S01 is deselected (step S03). If the result of the operation check test is successful (step S02-pass), the 43 switch state determination unit 203 determines whether the 43 switch 21T at the station level is in the local state HMI (step S11).

[0049] When it is determined that the HMI is in the local state (step S11-YES), the control right determination unit 208 determines whether or not the control right from the HMI 22 is established for the device selected in step S01 (step S04). If the control right is established (step S04-established), a device selection command is issued to the IED corresponding to the selected device (step S05). Next, the S / W type switch mode management unit 204 cancels the S / W type 43 switch mode and transitions to the normal mode.

[0050] On the other hand, if it is determined in step S11 that the HMI is not in the local state (step S11-NO), when the user presses the S / W type 43 switch (the station level 43 switch on the interface screen) to control the device selected in step S01 (step S12), the warning dialogue display unit 205 asks the user in a dialogue whether the connection with the upper control stations 11 and 12 has been disconnected (step S13). If the user presses the cancel button in step S13 (step S13-CANCEL), the device selected in step S01 is deselected (step S03).

[0051] In step S13, if the user presses the OK button (step S13-OK), the warning dialog display unit 205 further asks the user through a dialog whether the on-site worker has been contacted (step S14). In step S14, if the user presses the cancel button (step S14-CANCEL), the device selected in step S01 is deselected (step S03).

[0052] In step S14, if the user presses the OK button (step S14-OK), the 43 switch state switching unit 206 executes switching of the state of the 43 switch 21T in terms of the control right management to the local state, and the S / W type switch mode management unit 204 transitions to the S / W type switch mode (step S15). After that, the process proceeds to step S04.

[0053] On the other hand, if the control right is not established in the determination in step S04 (step S04-Not Established), the warning unit 212 indicates the reason for determining that the control right is not established, i.e., the cause of the failure to establish the control right (step S06). Next, the switch identification unit 213 identifies the switch to be changed, thereby indicating the 43 switches that need to be changed to enable control execution (step S07).

[0054] Next, it is confirmed whether the 43 switch of the local control panel of the line corresponding to the selected device, or the 43 switch under the local control panel hierarchy, is in the local state (step S08). If the 43 switch is not in the local state (step S08-No), the 43 switch is in the remote state, and the selected device is deselected (step S03).

[0055] If the 43 switch is in the local state (Yes in S08), it is possible for the changeover switch control unit 215 to change the state from the local state to the remote state. At this time, the switch information display unit 214 displays the 43 switch that changes the switch state from the local state to the remote state on the interface screen of the changeover control sequence of the 43 switch, and asks the user for confirmation regarding the execution of the changeover of the corresponding 43 switch by the changeover control sequence (step S09). If confirmation is not obtained from the user (No in step S09), the selected device is deselected (step S03).

[0056] After the user confirms in step S09 (step S09-YES), when the user instructs execution, the changeover switch control unit 215 switches the switches to be changed over from the local state to the remote state and executes the changeover of each of the 43 switches (step S10), continues the operation of the selected device in the control stage, and the process proceeds to step S05.

[0057] Thus, the HMI 22 includes a storage unit 201 that stores information indicating the state of the 43 switch 21T provided on the communication path connecting the upper control centers 11, 12 and the station level of the substation monitoring and control system 100, and a 43 switch state switching unit 206 that changes the state of the 43 switch 21T based on an operation on an operation means displayed on an interface screen. As a result, even if the 43 switch 21T cannot be switched while remaining in a remote state in which the upper control centers 11, 12 have the control authority due to an abnormality in the TC 21 or the 43 switch 21T, the substation equipment can be controlled from the substation monitoring and control system 100.

[0058] <Second embodiment> Hereinafter, a second embodiment of the present disclosure will be described with reference to the drawings. A substation monitoring and control system 100 in the second embodiment has a configuration similar to that of the substation monitoring and control system 100 in Fig. 1, but includes an HMI 22a instead of the HMI 22. The HMI 22a checks the authentication information of the user before changing the state of the 43 switch 21T.

[0059] 6 is a schematic block diagram showing the configuration of an HMI 22a according to a second embodiment of the present disclosure. The HMI 22a has the same configuration as the HMI 22 in FIG. 2, but differs from the HMI 22 in that it includes a user confirmation unit 218. The user confirmation unit 218 confirms user authentication information based on an operation on an operation means displayed on an interface screen before the 43 switch state switching unit 206 changes the state of the 43 switch 21T. The user authentication information may be any one of a password, biometric information such as a fingerprint, and a hardware token such as an IC card, or a combination of these.

[0060] FIG. 7 is a flowchart for explaining the operation of the HMI 22a in this embodiment. The flowchart in FIG. 7 is similar to the flowchart in FIG. 5, but is different in that it has step S17 between step S12 and step S13. FIG. 7 shows an example in which the user authentication information is a password. In step S17, the user confirmation unit 218 requests the user to input a password (operator authentication information) in a dialogue. The user confirmation unit 218 checks the inputted authentication information such as a password against pre-stored authentication information, and if it is determined that the authentication information such as a password is incorrect (step S12-password is incorrect), it cancels the selection of the device selected in step S01 (step S03). In addition, the user confirmation unit 218 checks the inputted authentication information such as a password against pre-stored authentication information, and if it is determined that the authentication information such as a password is correct (step S12-password is correct), the process proceeds to step S13. In addition, the comparison between the input authentication information and the pre-stored authentication information may be a determination as to whether or not these pieces of authentication information match, or a determination as to whether or not a calculation result including one piece of authentication information matches the other piece of authentication information, or a determination as to whether or not a calculation result including both pieces of authentication information is a specific value.

[0061] In this way, the substation monitoring and control system 100 is provided with a user verification unit 218 that verifies user authentication information based on an operation on an operation means displayed on the interface screen before the 42 switch state switching unit 206 changes the state of the 43 switch 21T. This makes it possible to control the substation equipment from the substation monitoring and control system 100 even if the 43 switch 21T cannot be switched while remaining in a remote state in which the upper control centers 11, 12 have control due to an abnormality in the TC 21 or the 43 switch 21T.

[0062] FIG. 8 is an explanatory diagram illustrating the hardware configuration of each device according to each embodiment. The devices are HMIs 22 and 22a. Each device includes an input / output module I, a storage module M, and a control module P. The input / output module I includes a communication module H11, a connection module H12, a pointing device H21, a keyboard H22, a display H23, a button H3, a microphone H41, a speaker H42, a camera H51, or a part or all of a sensor H52. The storage module M includes a drive H7. The storage module M may further include a part or all of a memory H8. The control module P includes a memory H8 and a processor H9. These hardware components are connected to each other so as to be able to communicate with each other via a bus, and are supplied with power from a power source H6.

[0063] The connection module H12 is a digital input / output port such as a USB (Universal Seriul Bus). In the case of a portable device, the pointing device H21, the keyboard H22, and the display H23 are touch panels. The sensor H52 is an acceleration sensor, a gyro sensor, a GPS receiving module, a proximity sensor, or the like. The power source H6 is a power supply unit that supplies electricity required to operate each device. In the case of a portable device, the power source H6 is a battery. The drive H7 is an auxiliary storage medium such as a hard disk drive or a solid state drive. The drive H7 may be a non-volatile memory such as an EEPROM or a flash memory, or a magneto-optical disk drive or a flexible disk drive. In addition, the drive H7 is not limited to being built into each device, but may be an external storage device connected to a connector of the connection module H12. The memory H8 is a main storage medium such as a random access memory. The memory H8 may be a cache memory. The memory H8 stores instructions when the instructions are executed by one or more processors H9. The processor H9 is a CPU (Central Processing Unit). The processor H9 may be a microprocessing unit (MPU) or a graphics processing unit (GPU). The processor H9 reads out programs and various data from the drive H7 via the memory H8 and performs calculations to execute instructions stored in one or more memories H8.

[0064] The input / output module I is used for the HMIs 22 and 22a, etc. The control module P is used for implementing each part of the HMIs 22 and 22a. Note that in this specification and the like, the description of the HMIs 22 and 22a may be replaced with the description of the control module P.

[0065] The present disclosure may also be embodied as follows. (1) One embodiment of the present disclosure is an HMI (Human Machine Interface) device in a substation monitoring and control system, the HMI device including: a memory unit that stores information indicating a state of a station-level control circuit changeover switch provided on a communication path connecting a device installed in a higher-level control station and a station level of the substation monitoring and control system; and a switching unit that changes the state of the station-level control circuit changeover switch based on an operation on an operating means displayed on an interface screen.

[0066] This allows the HMI device to control substation equipment from the substation monitoring and control system even if the station-level control circuit changeover switch becomes unable to be switched and remains in a remote state where control is given to the higher-level control center.

[0067] (2) Another embodiment of the present disclosure is the HMI device described in (1), wherein the memory unit stores, as the state of the station-level control circuit changeover switch, an actual state of the station-level control circuit changeover switch and a control rights management state of the station-level control circuit changeover switch, and the switching unit changes the control rights management state of the station-level control circuit changeover switch stored in the memory unit based on the operation to a state in which equipment in the substation can be controlled from the substation monitoring and control system.

[0068] As a result, even if the control circuit changeover switch at the station level is a physical switch and cannot be operated from the HMI device, the control right can be given to the HMI device by operating it from the HMI device.

[0069] (3) Furthermore, another embodiment of the present disclosure is an HMI device as described in (1) or (2), further comprising a warning display unit that displays a warning regarding the state of the station-level control circuit changeover switch on the interface screen based on the operation before the switching unit changes the state of the station-level control circuit changeover switch.

[0070] This makes it possible to prevent the HMI device from accidentally giving control authority to the HMI device due to a user's erroneous operation.

[0071] (4) Furthermore, another embodiment of the present disclosure is an HMI device as described in any one of (1) to (3), further comprising a user verification unit that checks input user authentication information against pre-stored authentication information based on the operation before the switching unit changes the state of the station-level control circuit changeover switch.

[0072] This allows the HMI device to limit users who can be given control rights to the HMI device through operations from the HMI device to specific users.

[0073] (5) Another embodiment of the present disclosure is a substation monitoring and control system including: a memory unit that stores information indicating a state of a station-level control circuit changeover switch provided on a communication path connecting an apparatus installed in a higher-level control station and a station level of the substation monitoring and control system; and a switching unit that changes the state of the station-level control circuit changeover switch based on an operation on an operating means displayed on an interface screen.

[0074] This allows the substation monitoring and control system to control the substation equipment even if the station-level control circuit changeover switch becomes unable to be switched and remains in a remote state where the higher-level control station has control authority.

[0075] (6) Another embodiment of the present disclosure is the substation monitoring and control system described in (5), wherein the memory unit stores, as the state of the station-level control circuit changeover switch, an actual state of the station-level control circuit changeover switch and a control rights management state of the station-level control circuit changeover switch, and the switching unit changes the control rights management state of the station-level control circuit changeover switch stored in the memory unit based on the operation to a state in which equipment in the substation can be controlled from the substation monitoring and control system.

[0076] As a result, even if the station-level control circuit changeover switch is a physical switch and cannot be operated from the substation monitoring and control system's interface screen, control rights can be given to the substation monitoring and control system by operating it from the interface screen.

[0077] (7) Another embodiment of the present disclosure is a substation monitoring and control system as described in (5) or (6), further comprising a warning display unit that displays a warning regarding the state of the station-level control circuit changeover switch on the interface screen based on the operation before the switching unit changes the state of the station-level control circuit changeover switch.

[0078] This makes it possible to prevent the substation monitoring and control system from giving control rights to the substation monitoring and control system due to an erroneous operation by the user.

[0079] (8) Another embodiment of the present disclosure is a substation monitoring and control system according to any one of (5) to (7), further comprising a user verification unit that checks input user authentication information against pre-stored authentication information based on the operation before the switching unit changes the state of the station-level control circuit changeover switch.

[0080] This enables the substation monitoring and control system to limit users who can be given control rights to the substation monitoring and control system through operations on the interface screen to specific users.

[0081] (9) Another embodiment of the present disclosure is a substation monitoring and control system described in any one of (5) to (8), further comprising a remote monitoring and control device, a bay control device, a local control panel, and a local panel.

[0082] (10) Another embodiment of the present disclosure is a substation monitoring and control method including: storing information indicating a state of a station-level control circuit changeover switch provided on a communication path connecting a device installed in a higher-level control station and a station level of a substation monitoring and control system; and changing the state of the station-level control circuit changeover switch based on an operation on an operation means displayed on an interface screen.

[0083] As a result, the substation monitoring and control method allows the substation equipment to be controlled from the substation monitoring and control system even if the station-level control circuit changeover switch remains in a remote state where the upper control station has control authority and cannot be switched.

[0084] (10) Another embodiment of the present disclosure is a program for causing a computer to function as an HMI (Human Machine Interface) device in a substation monitoring and control system, the HMI device including: a memory unit that stores information indicating a state of a station-level control circuit changeover switch provided on a communication path connecting a device installed in a higher-level control station and a station level of the substation monitoring and control system; and a switching unit that changes the state of the station-level control circuit changeover switch based on an operation on an operating means displayed on an interface screen.

[0085] This allows the program to have the computer control the substation equipment from the substation monitoring and control system, even if the station-level control circuit changeover switch becomes unable to be switched and remains in a remote state where control is given to the higher-level control station.

[0086] 1, 2, and 6 may be realized by recording a program for realizing the functions of the HMI 22 and HMI 22a in a computer-readable recording medium, and reading and executing the program recorded in the recording medium into a computer system. Note that the term "computer system" here includes hardware such as the OS and peripheral devices.

[0087] In addition, "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, and storage devices such as hard disks built into computer systems. Furthermore, "computer-readable recording medium" also includes those that dynamically hold a program for a short period of time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, and those that hold a program for a certain period of time, such as volatile memory inside a computer system that serves as a server or client in such cases. Furthermore, the above program may be one that realizes part of the above-mentioned functions, or may be one that can realize the above-mentioned functions in combination with a program already recorded in the computer system.

[0088] Although the embodiment of this disclosure has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like are also included within the scope that does not depart from the gist of this disclosure. [Explanation of symbols]

[0089] 11, 12 Upper control station 21TC 21T, 31A, 31L, 32A, 32L, 51S, 51C, 52S, 52C 43 Switch 22, 22a HMI 31, 32 IED 41 Line A Trans 51, 52 MU 61, 62 Switchgear 71, 72 Circuit breaker 100 Substation monitoring and control system 201 Storage section 202 Information display section 203 43 Switch state determination unit 204 S / W type switch mode management unit 205 Warning dialog display area 206 43 Switch state change unit 207 Change detection unit 208 Control authority determination unit 209 List display section 210 Equipment symbol identification display section 211 Equipment selection command output unit 212 Warning section 213 Switch Specific Part 214 Switch information display section 215 Changeover switch control section 216 Switch Judgment Unit 217 Unchangeable message display section

Claims

1. An HMI (Human Machine Interface) device in a substation monitoring and control system, a storage unit that stores, as information indicating the state of a control circuit changeover switch at a station level provided on a communication path connecting a device installed in a higher-level control station and a station level of the substation monitoring and control system, an actual state of the control circuit changeover switch at the station level and a control right management state of the control circuit changeover switch at the station level; a switching unit that changes the state of the control circuit changeover switch at the station level stored in the storage unit in terms of control right management based on an operation on an operation means displayed on an interface screen to a state in which devices in the substation can be controlled from the substation monitoring and control system; An HMI device comprising:

2. 2. The HMI device according to claim 1, further comprising a warning display unit that displays a message on the interface screen to confirm whether the connection with the upper control center has been disconnected based on the operation before the switching unit changes the state of the station-level control circuit changeover switch.

3. An HMI device as described in claim 1, further comprising a warning display unit that displays a message on the interface screen confirming whether on-site workers have been contacted based on the operation before the switching unit changes the state of the station-level control circuit switching switch.

4. 2. The HMI device according to claim 1, further comprising a user verification unit that verifies input user authentication information against pre-stored authentication information based on the operation before the switching unit changes the state of the station-level control circuit changeover switch.

5. A substation monitoring and control system, comprising: a storage unit that stores, as information indicating the state of a control circuit changeover switch at a station level provided on a communication path connecting a device installed in a higher-level control station and a station level of the substation monitoring and control system, an actual state of the control circuit changeover switch at the station level and a control right management state of the control circuit changeover switch at the station level; a switching unit that changes the state of the control circuit changeover switch at the station level stored in the storage unit in terms of control right management based on an operation on an operation means displayed on an interface screen to a state in which devices in the substation can be controlled from the substation monitoring and control system based on the operation; A substation monitoring and control system comprising:

6. 6. The substation monitoring and control system according to claim 5, further comprising a warning display unit that displays a message on the interface screen to confirm whether the connection with the upper control center has been disconnected based on the operation before the switching unit changes the state of the station-level control circuit changeover switch.

7. A substation monitoring and control system as described in Claim 5, comprising a warning display unit that displays a message on the interface screen confirming whether on-site workers have been contacted based on the operation before the switching unit changes the state of the station-level control circuit changeover switch.

8. 6. The substation monitoring and control system according to claim 5, further comprising a user verification unit that verifies input user authentication information against pre-stored authentication information based on the operation before the switching unit changes the state of the station-level control circuit changeover switch.

9. The substation monitoring and control system according to claim 5 , further comprising a remote monitoring and control device, a bay controller, a local control panel, and a local panel.

10. A substation monitoring and control method, comprising: a first step of storing, as information indicating the state of a control circuit changeover switch at a station level provided on a communication path connecting a device installed in a higher-level control station and a station level of a substation monitoring and control system, an actual state of the control circuit changeover switch at the station level and a control right management state of the control circuit changeover switch at the station level; a second step of changing the state of the control right management of the control circuit changeover switch at the station level based on an operation on an operation means displayed on an interface screen to a state in which devices in the substation can be controlled from the substation monitoring and control system; A substation monitoring and control method comprising:

11. Computer, HMI (Human Machine Interface) device in substation monitoring and control system A program for functioning as The HMI device a storage unit that stores, as information indicating the state of a control circuit changeover switch at a station level provided on a communication path connecting a device installed in a higher-level control station and a station level of the substation monitoring and control system, an actual state of the control circuit changeover switch at the station level and a control right management state of the control circuit changeover switch at the station level; a switching unit that changes the state of the control circuit changeover switch at the station level stored in the storage unit in terms of control right management based on an operation on an operation means displayed on an interface screen to a state in which devices in the substation can be controlled from the substation monitoring and control system; A program that includes:

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