JP4960016B2 - Power system control system - Google Patents

Description

  The present invention relates to a power system control system including a man-machine interface and setting, operating, and maintaining the system by operating the man-machine interface.

  Conventionally, in this type of power system protection / control system that protects and controls a power system, the operation status of the system is displayed by LEDs on a display panel disposed on the surface. In addition, key switches and numeric key switches are provided separately, and various set values are set for the system by operating these switches, and the system operation is determined based on the set values. Yes.

JP-A-6-327135 (FIG. 1 and its description)

  However, the conventional power system protection / control system has a problem that the operation is complicated when various operations are performed on the system, and thus the system malfunctions due to an erroneous operation. In addition, when operating the system, considerable operational knowledge is required, and there is a problem that the system cannot be operated if the operator does not have operational knowledge.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to prevent erroneous operation by easily enabling various operations on the system and to avoid malfunction of the system.

The power system control system according to the present invention includes a man-machine interface, and in the power system control system for setting, operating, and maintaining the system by operating the man-machine interface,
An operation unit having a guidance button for selecting display of a system recovery operation guidance when a failure occurs, a guidance button for selecting operation maintenance at the time of operation maintenance, and a guidance button for selecting an operation for changing the set value when the set value is changed, and The man-machine interface is provided with a display unit for displaying the contents of the system restoration operation guidance when a failure occurs, the contents of the operation maintenance operation guidance, and the setting value change operation guidance .
When the said guidance button when the system failure is operated, failure sites, failure cause, recovery instructions required for system recovery is displayed on the display unit, if the recovery is not possible defect sites, cause the recovery not Is displayed on the display unit ,
When the guidance button is operated during operation maintenance, information necessary for operation maintenance and operation maintenance operation method necessary for operation maintenance are displayed on the display unit,
When the said guidance button during operation to change the setting value is operated, in shall operation content along the set point change operation procedure and the change operation steps necessary to change the operation of the setting value is displayed on the display unit is there.

The present invention provides a power system control system that includes a man-machine interface and sets, operates, and maintains the system by operating the man-machine interface.
An operation unit having a guidance button for selecting display of a system recovery operation guidance when a failure occurs, a guidance button for selecting operation maintenance at the time of operation maintenance, and a guidance button for selecting an operation for changing the set value when the set value is changed, and The man-machine interface is provided with a display unit for displaying the contents of the system restoration operation guidance when a failure occurs, the contents of the operation maintenance operation guidance, and the setting value change operation guidance .
When the said guidance button when the system failure is operated, failure sites, failure cause, recovery instructions required for system recovery is displayed on the display unit, if the recovery is not possible defect sites, cause the recovery not Is displayed on the display unit ,
When the guidance button is operated during operation maintenance, information necessary for operation maintenance and operation maintenance operation method necessary for operation maintenance are displayed on the display unit,
When the guidance button is operated during the setting value changing operation, the setting value changing operation procedure necessary for the setting value changing operation and the operation contents in accordance with the changing operation procedure are displayed on the display unit. Because there is
With one power system control system,
During malfunction, simply selecting the guidance button, defect sites when trouble occurs, failure cause, together can be performed easily system recovery operation from the contents of the recovery operation methods required is displayed on the display unit in the system recovery, recovery If there is no operation error and the system malfunction can be prevented, and if a guidance button is selected when a failure occurs, if the recovery is not possible, the display will indicate that the defective part, cause, and recovery are not possible. Can prevent the system from malfunctioning due to unnecessary recovery operation,
In addition, during operation maintenance, only the guidance button is selected, and the information required for operation maintenance and the contents of operation maintenance operation guidance during operation maintenance are displayed on the display unit. , Operation and maintenance mistakes can be eliminated and system malfunction can be prevented.
In addition, at the time of changing the setting value, simply by selecting the guidance button, the setting value changing operation procedure and the operation content in accordance with the changing operation procedure are displayed on the display unit, so the setting value changing operation can be easily performed. In addition, there is no mistake in changing the setting value, and system malfunction can be prevented.
Further, any of the restoration operation method, the defective part, the cause, the inability to restore, the contents of the operation / maintenance operation guidance, the setting value changing operation procedure, and the operation contents along the changing operation procedure are displayed on the display unit. It is effective that it is displayed on .

Embodiment 1 FIG.
A first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram showing an example of the system configuration of the main part of the power system protection / control system, and FIG. 2 is a flowchart showing the operation of the system illustrated in FIG.

In FIG. 1, the power system protection / control system includes a man-machine interface unit 1, a relay calculation unit 2, an output unit 3, and the like.
The man-machine interface unit 1 includes a display unit 11, a display unit control H / W (hardware) 12, an operation unit 13 for setting a set value and the like in the system, and an operation unit control H / W 14. .
Further, the display unit 11 is provided with an LED 111 and a Japanese display panel 112 for displaying the system status.
The operation unit 13 is provided with a settling start switch 131 and a guidance button 132.

  FIG. 2 is a flowchart showing the operation of the system of FIG. 1, and shows a recovery operation when a system failure occurs in the system. The operation of the system will be described based on the block diagram of FIG. 1 and the flowchart of FIG.

If a malfunction occurs in the system, the relay computing unit 2 detects the malfunction in step 200 and outputs the detected result to the LED 111 in the display unit 11 of the man-machine interface unit 1.
Here, the failure is, for example, a DO (digital output) output monitoring abnormality as a failure that can be recovered, and an invalid check (illegal instruction) as a failure that cannot be recovered, for example. It is.

  In the recovery operation when the system malfunction occurs, first, in step 201, the guidance button 132 in the operation unit 13 is pressed. At this time, it is determined in step 202 whether the system is recovered by the recovery operation. The determination at step 202 is performed by the relay calculation unit 2.

If it is determined that recovery is possible, in step 203, the defective part, cause, and recovery method are collectively displayed on one screen on the Japanese display panel 112, or sequentially displayed by scrolling. For example, in the case of the DO output monitoring abnormality, these indications are displayed as, for example, a display unit, an output unit, etc. as defective parts, and as causes, for example, indicated as settling defects, defective DO parts, etc. As the method, for example, a setting value change, a DO card exchange or the like is displayed.
Note that the actual change according to the set value change display is generally performed locally (that is, recovery work), and the actual replacement according to the DO card replacement display is generally performed. Is a restoration work by replacing parts.

  By pressing the guidance button again in step 204, the guidance display is turned off. Thereafter, in step 205, a recovery operation is performed by the recovery method of step 203. When the restoration operation is completed, the LED on the display unit is turned off in step 206. When a guidance button is pressed during a certain operation (for example, when the set value is changed to recover), the usage method is supported for the item being operated at that time (guidance is displayed) It is convenient if you do it.

  If it is determined that the recovery is impossible, in step 207, the Japanese display panel 112 displays a defective part, a cause, and that the recovery is impossible.

  As described above, in the system of the present invention, when the system malfunctions, the guidance dedicated button displays the defective part, the cause, and the recovery operation method necessary for system recovery on the Japanese display panel. The system recovery operation can be performed, and there is an effect that a mistake in the recovery operation can be eliminated and a malfunction of the system can be prevented.

  In other words, in a power system control system that has a man-machine interface and sets, operates, and maintains the system by operating this man-machine interface, a guidance button for selecting display of a system recovery operation guidance when a failure occurs and a system when the failure occurs The man-machine interface is equipped with a display unit that displays the contents of the recovery operation guidance. When the guidance button is operated during a system failure, the display unit displays the failure site, cause of failure, and the recovery operation method required for system recovery. Therefore, in the event of a system failure, simply selecting the guidance button will display the contents of the system recovery operation guidance at the time of the failure on the display, so that the system recovery operation can be performed easily and the recovery operation is performed. Missing error system There is an effect that malfunction can be prevented.

Embodiment 2. FIG.
A second embodiment of the present invention will be described below with reference to FIG. FIG. 3 is a flowchart showing the operation of the system, and shows the operation during operation of the power system protection control system for the system.

  The operation of the above-described embodiment apparatus will be described with reference to the block diagram of FIG. 1 and the flowchart of FIG.

  In the operation maintenance work at the time of operation of the system, first, in step 301, the guidance button 132 in the operation unit 13 is pressed, and in step 302, the measurement data necessary for the operation maintenance information is displayed on the Japanese display panel 112. If there is a plurality of necessary information, the next item is displayed as in step 305 when the guidance button is further pressed in step 304. After the last item is displayed in step 303, the light goes off when the guidance button is pressed as in step 306.

  As described above, in the system of the present invention, only the information necessary for the operation and maintenance work of the power company is displayed on the Japanese display panel by the guidance dedicated button during system operation. In addition, it is possible to confirm information necessary for operation and maintenance (for example, the state of the circuit breaker CB, the number of inspections, the amount of input electricity, etc.), and to prevent malfunction of the system due to erroneous operation during the confirmation operation.

  In other words, in a power system control system that has a man-machine interface and sets, operates, and maintains the system by operating this man-machine interface, displays the guidance button for selecting operation maintenance during operation maintenance and the content of operation guidance for operation maintenance A display unit is provided in the man-machine interface, and when the guidance button is operated during operation maintenance, the operation maintenance operation method necessary for operation maintenance is displayed on the display unit. By selecting a button, the contents of the operation maintenance operation guidance during operation maintenance are displayed on the display unit.Therefore, the operation maintenance operation can be easily performed, and the operation maintenance operation error can be eliminated and the system malfunction can be prevented. is there.

Further, the operation can be performed without a system operation manual or the like. Therefore, anyone can easily change the set value without limiting the system operator.
The set value is a set value of a protection relay element or the like, and changing the set value means, for example, changing the set value of the overcurrent relay from 2A to 10A, for example.

Embodiment 3 FIG.
A third embodiment of the present invention will be described below with reference to FIG. FIG. 4 is a flowchart showing the operation of the system, and shows the operation when the set value is changed for the power system protection control system.

  The operation of the above-described embodiment apparatus will be described based on the block diagram of FIG. 1 and the flowchart of FIG.

  When settling is performed in the above system, after the settling start switch 131 is pushed in step 401, the guidance button 132 in the operation unit 13 is pushed in step 402, so that the setting operation procedure is displayed on the Japanese display panel 112 in step 403. To do.

  By pressing the guidance button again in step 404, the guidance display is turned off.

  Thereafter, in step 405, a setting operation is performed by the setting method in step 403.

  As described above, in the system of the present invention, the operation content in accordance with the set value change operation procedure is displayed on the Japanese display panel by the guidance dedicated button during the set value change operation. In addition, it is possible to perform an operation for changing the set value and to eliminate an error in the operation for changing the set value, thereby preventing a malfunction of the system.

  In other words, in a power system control system that has a man-machine interface and sets, operates, and maintains the system by operating this man-machine interface, a guidance button for selecting a setting value changing operation at the time of a setting value changing operation and a setting value change The man-machine interface is provided with a display unit for displaying the contents of the operation guidance for the setting value, and when the guidance button is operated during the setting value changing operation, the setting value changing operation method necessary for the setting value changing operation is displayed on the display. When changing the setting value, simply select the guidance button and the content of the setting value change operation guidance will be displayed on the display. Therefore, the setting value can be changed easily. Can be performed, and there is an effect that a mistake in changing the set value can be eliminated and system malfunction can be prevented.

  In addition, each button of the guidance button operated when the trouble occurs in the above-described embodiment, the guidance button operated during operation maintenance, and the guidance button operated when changing the set value may be provided individually, but as a common button If you want to use a common button, for example, if you press the guidance button when there is no operation and no display, the guidance for operation and maintenance is displayed first, and the guidance for changing the setting value has been set by pressing the settling start button. If the guidance button is pressed later, guidance regarding changing the settling value may be displayed.

  Note that the S / W of the guidance content is stored in, for example, the relay calculation unit 2 in the above-described embodiment.

It is a figure which shows Embodiment 1 of this invention, and is a figure which shows the example of a system configuration with a block diagram. FIG. 2 is a diagram illustrating the first embodiment of the present invention, and is a diagram illustrating the operation of the system illustrated in FIG. 1 in a flowchart. It is a figure which shows Embodiment 2 of this invention, and is a figure which shows the operation | movement of a system with a flowchart. It is a figure which shows Embodiment 3 of this invention, and is a figure which shows the operation | movement of a system with a flowchart.

Explanation of symbols

1 Man-machine interface,
2 Relay operation unit,
3 Output section,
11 Display section,
12 Display control H / W,
13 Operation part,
14 Operation unit control H / W,
111 LEDs,
112 Japanese display panel,
131 Settling start switch,
132 Guidance button.

Claims (3)

In a power system control system that has a man-machine interface and sets, operates, and maintains the system by operating this man-machine interface.
An operation unit having a guidance button for selecting display of a system recovery operation guidance when a failure occurs, a guidance button for selecting operation maintenance at the time of operation maintenance, and a guidance button for selecting an operation for changing the set value when the set value is changed, and The man-machine interface is provided with a display unit for displaying the contents of the system restoration operation guidance when a failure occurs, the contents of the operation maintenance operation guidance, and the setting value change operation guidance .
When the said guidance button when the system failure is operated, failure sites, failure cause, recovery instructions required for system recovery is displayed on the display unit, if the recovery is not possible defect sites, cause the recovery not Is displayed on the display unit ,
When the guidance button is operated during operation maintenance, information necessary for operation maintenance and operation maintenance operation method necessary for operation maintenance are displayed on the display unit,
When the said guidance button during operation to change the setting value is operated, the Rukoto operation content along the set point change operation procedure and the change operation steps necessary to change the operation of the setting value is displayed on the display unit Characteristic power system control system. In the electric power system control system according to claim 1 ,
A guidance button for selecting display of a system recovery operation guidance when the malfunction occurs, a guidance button for selecting operation maintenance at the time of the operation maintenance, and a guidance button for selecting a change operation of the set value when the set value is changed are individually provided. An electric power system control system characterized by being provided . In the electric power system control system according to claim 1 ,
The guidance button for selecting the display of the system restoration operation guidance when the trouble occurs, the guidance button for selecting the operation maintenance at the time of the operation maintenance, and the guidance button for selecting the operation for changing the setting value at the time of changing the setting value are common. This is a guidance button. By pressing the common guidance button a plurality of times, guidance related to the system restoration operation, guidance related to the operation maintenance, and guidance related to the change of the set value are displayed on the display unit. > Power system control system characterized by that.

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