JPH09152910A - Monitor and control equipment for power system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent operation data recorded in an operation data file from being erased prior to its display when a master clock device is abnormal or time updating operation is executed in error. SOLUTION: Power system data from a remote monitor and control equipment 2 are written in an on-line data file 6 by a data entering means 5 and then written in an operation data file 8 by an operation data preparing means 7. An operation data display control means 9 displays operation data on a display means and the means 7 reads out the current time of a CPU internal clock 13 written through a time entering means 12 from a current time table 11. In order to accurately set up the current time, a time updating means 10 refers to a time signal outputted from the master clock device 14 and updates the contents of the table 11. When the device 14 is abnormal or time is updated in error, a data preparation availability judging means 18 inhibits the means 7 from preparing operation data when a difference between the preceding preparation time and the current time exceeds an allowable time range.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power system supervisory control device for taking in power system information via a remote supervisory control device.

[0002]

2. Description of the Related Art FIG. 7 is a block diagram showing a configuration of a conventional power system monitoring and controlling apparatus. In this figure, a computer 1 inputs power system data from each equipment constituting the power system via a distant monitoring control device (TC) 2 and outputs the output result to a display device such as a printer 3 or a CRT 4. It is supposed to be displayed.

The electronic computer 1 includes a data fetching means 5, an online data file 6, an operation data creating means 7, an operation data file 8, an operation data display control means 9, a time updating means 10, a current time table 11, and a time taking means 12. , CPU internal clock 13 and the like.

Then, the data acquisition means 5 first inputs the power system data from the remote monitoring and control device 2. The power system data includes, for example, binary data representing the on / off states of switches, relays, etc., or numerical data about the current and voltage of the system, the output of the generator, etc. The data fetching means 5 writes these binary data and numerical data in the online data file 6 as online data.

The operation data creating means 7 reads the online data of the online data file 6 at a predetermined time interval, processes the data, and writes it in the operation data file 8 as operation data. This operation data is recorded data to be recorded in a daily report, a monthly report, etc., and the operation data display control means 9 causes the printer 3 or CRT 4 to display the content thereof.

The CPU internal clock 13 generates a time signal, and the time fetching means 12 writes the current time in the current time table 11 based on this time signal. Then, the operation data creating means 7 reads the current time in the current time table 11 to create the operation data every time a fixed time elapses.

By the way, the time signal generated by the internal clock of the CPU is a signal necessary for synchronizing the operation of each means in the electronic computer 1, and when the time based on this signal is greatly deviated, the system is instructed. It will have a significant impact. The master clock device 14 is used to prevent such a situation, and the time updating means 10 writes the current time table 11 based on the CPU internal clock 13 by the time signal from the master clock device 14. It is possible to update the rare current time to the correct time. Where C
When the time difference between the PU internal clock 13 and the master clock device 14 becomes larger than a certain amount, it is possible that the master clock device 14 is abnormal. Therefore, the time is not updated.

An operation signal is input to the time updating means 10 from an operating means such as a keyboard KB, and the current time written in the current time table 11 can be freely set by operating the keyboard of the operator OP. Can be updated or corrected.

[0009]

As described above, the current time written in the current time table 11 is updated by the time update means 10. This update is due to an abnormality of the master clock device 14. Even if there is, it is performed based on the time of the master clock device 14, and even if the operator OP operates the keyboard KB by mistake, the operation is performed based on this operation by mistake. Therefore, when a certain period of time elapses after such an update is performed, the operation data file 8 is recorded on a time scale, such as from the present time to how many days or months ago. Therefore, some data will be lost before being displayed on the printer 3 or the CRT 4.

For example, if the current time written in the current time table 11 is ahead of the actual time, the contents of old data recorded in the operation data file 8 are displayed. Before it disappears. On the other hand, when the current time written in the current time table 11 is far behind the actual time and is out of the recording time zone of the operation data file 8, the operation data creating means 7 creates the current data. Do not do. The operation data creating means 7 creates the data when a certain time has passed and the time currently written in the time table 11 enters the recording time zone of the operation data file 8.

In this way, when operational data that has disappeared from the operational data file 8 before being displayed occurs, the operator OP takes out the online data recorded in the online data file 8 and extracts the operational data from this. After creating it yourself, you have to manually write the missing data in the recording time zone in daily or monthly reports. Such work increases the time and labor borne by the operator OP, and since there is a possibility that a bookkeeping error may occur, the reliability of daily reports, monthly reports, etc. will be impaired.

The present invention has been made in view of the above circumstances, and when an error occurs in the master clock device or an operator makes a mistake in the time update operation, the operation data recorded in the operation data file is It is an object of the present invention to provide a power system monitoring control device capable of preventing the power system from disappearing before being displayed.

[0013]

As a means for solving the above-mentioned problems, the invention according to claim 1 inputs power system data from each equipment constituting the power system, and stores this data in an online data file. Based on the signal from the data fetching means to write in and the CPU internal clock, the time fetching means to write the current time in the current time table and the current time written in the current time table based on the signal from the master clock. A time updating means for updating to a correct time, an operation data creating means for creating operation data at predetermined time intervals based on the data of the online data file and the current time table, and writing the operation data in the operation data file, and the operation In a power system control device comprising display control means for displaying the operation data written in the data file on the display means, When the data creation means tries to create operational data and the difference between the previous creation time and the current creation time is outside the predetermined allowable time range, a data creation permission / inhibition determination means for prohibiting the creation is provided. , Is provided.

According to a second aspect of the present invention, in the first aspect of the invention, the time updating means performs the updating based on an operation signal from the operating means instead of the signal from the master clock. There is a feature.

According to a third aspect of the present invention, in the first or second aspect of the present invention, an alarm generating means for generating an alarm when the data creation permission / inhibition determining means performs the prohibition is provided. It is what

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the data creation permission / inhibition determining means writes the operation data file when the prohibition is performed. After the operation data moving means for moving the operation data to the operation data spare file and the movement of the operation data by the operation data moving means are completed,
Data creation prohibition canceling means for canceling the prohibition by the data creation propriety judging means are provided.

[0017]

FIG. 1 is a block diagram showing an embodiment of the present invention.
It will be described with reference to FIG. However, the same components as those in FIG. 7 are designated by the same reference numerals, and duplicate description will be omitted. FIG. 1 is a block diagram showing the configuration of this embodiment, and FIG.
The difference from the above is that an allowable time range setting means 15, an allowable time range table 16, a previously created time table 17, and a data creation possibility determination means 18 are added.

Next, the operation of this embodiment will be described.
In this embodiment, the operation data is created every 24 hours. In this case, the operator OP operates the keyboard KB to send an operation signal to the allowable time range setting means 15 and write the lower limit allowable time and the upper limit allowable time in the allowable time range table 16. FIG. 2 shows the contents of the allowable time range table 16, in which the data of the lower limit allowable time and the upper limit allowable time of each of the daily report, the monthly report and the annual report are written. For the daily report, for example, the lower limit allowable time is 14 hours and the upper limit allowable time is 34 hours. That is, if the difference between the previous creation time and the current creation time of the operation data is 14 hours or less or 34 hours or more, the operation data creation is prohibited.

When the operation data creating means 7 creates operation data and finishes writing to the operation data file 8, the time is written in the previously created time table 17. FIG.
Shows an example of the time written in the previously created time table 17. Now, the operator OP updated the contents of the current time table 11 by keyboard operation after the previous minute of the operation data was created, but in that case, the current time was delayed by 12 hours because the morning and the afternoon were mistaken. And

24 since the last minute of operational data was created
The time when the time has elapsed should be the current time of creation, but at this time, the data creation availability determination unit 18 reads the current time from the current time table 11. FIG. 4 shows an example of the times written in the present time table 11. As shown in FIG. 3, the last creation time is "1995.
Since it is "October 1st, 9:00", originally the creation time should be "October 2, 1995", but because the operator OP made a mistake in operating the keyboard when updating the time. . It is "21:00 on October 1, 1995".

In this case, the difference between the previous creation time and the current creation time is 12 hours, which is the allowable time range table 1
It is less than or equal to the lower limit allowable time (14 hours) set in 6. Therefore, the data creation possibility determination means 18 determines that the operation data cannot be created, and outputs a creation inhibition signal to the operation data creation means 7. As a result, the writing of the operation data creating means 7 to the operation data file 8 is prohibited, so that it is possible to prevent the already recorded data from being erased. FIG. 5 is a flowchart summarizing the contents of the above operation. In the above case, the case where the operator OP makes a mistake in the keyboard operation at the time of updating the time has been described, but the same can be considered when the master clock device 14 becomes abnormal.

Next, another embodiment of the present invention will be described with reference to FIG. 6 is different from FIG. 1 in that the alarm generation means 1
9, a buzzer 20, a data creation prohibition canceling unit 21, an operational data moving unit 22, and an operational data spare file 23 are added.

In FIG. 6, a data creation propriety judging means 1
When 8 outputs the creation prohibition signal, the alarm generation means 19 outputs an alarm command signal to the buzzer 20, the printer 3, and the CRT 4. As a result, the buzzer 20 emits an alarm sound and the printer 3 and the CRT 4 display a predetermined alarm content.
The operator OP can surely know the abnormality of the master clock device 14 or the mistake of the keyboard operation, and can immediately take appropriate measures.

After the data creation permission / inhibition decision means 18 prohibits the creation of the operation data creation means 7, the operator OP
However, it may be time-consuming to take subsequent measures and the operation data may not be restarted for a long time. In such a case, the operator OP first operates the keyboard KB to cause the operation data moving means 22 to move the data recorded in the operation data file 8 to the operation data spare file 23. . And
After that, the data creation prohibition canceling unit 21 is caused to cancel the data creation prohibition for the data creation propriety judging unit 18. As a result, while the operator OP is taking appropriate measures, the operation data after this time is not deleted and the operation data after this time is not deleted.
Can be recorded. The contents of the data recorded in the operation data spare file 25 can be confirmed by the operator OP at any time by operating the keyboard.

[0025]

As described above, according to the present invention, the operation data recorded in the operation data file is displayed when an abnormality occurs in the master clock device or the operator makes a mistake in the time update operation. It can be prevented from disappearing before being treated.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the contents of an allowable time range table in FIG.

FIG. 3 is an explanatory diagram showing an example of contents of a previously created time table in FIG. 1.

FIG. 4 is an explanatory diagram showing an example of contents of a current time table in FIG.

5 is a flowchart showing an outline of the operation of FIG.

FIG. 6 is a block diagram showing the configuration of another embodiment of the present invention.

FIG. 7 is a block diagram showing a configuration of a conventional device.

[Explanation of symbols]

 3 Printer (Display Means) 4 CRT (Display Means) 5 Data Acquisition Means 6 Online Data File 7 Operation Data Creation Means 8 Operation Data Files 9 Operation Data Display Control Means 10 Time Update Means 11 Current Time Table 12 Time Acquisition Means 13 CPU Internal Clock 14 Master clock device 15 Allowable time range setting means 16 Allowable time range table 17 Last created time table 18 Data creation possibility determination means 19 Alarm generation means 20 Buzzer 21 Data creation prohibition release means 22 Operation data transfer means 23 Operation data backup file

Claims (4)

[Claims] 1. A current time table based on a signal from a data fetching means for inputting the power system data from each equipment constituting the power system and writing the data in an online data file and a clock from a CPU internal clock. Time reading means for writing the time, time updating means for updating the current time written in the current time table to a correct time based on a signal from the master clock, and data for the online data file and the current time table. On the basis of the above, operation data is created every predetermined time, and operation data creating means for writing the operation data in the operation data file, and display control means for displaying the operation data written in the operation data file on the display means are provided. In the provided power system control device, when the operation data creating means tries to create operation data, Times when the difference between the creation times is outside the range of the previously determined Aru allowable time, the data creation permission determining means for prohibiting the creation, power system monitoring control system, characterized in that provided. 2. The electric power system monitoring and controlling apparatus according to claim 1, wherein the time updating means replaces the signal from the master clock,
An electric power system monitoring and control device, characterized in that the updating is performed based on an operation signal from an operating means. 3. The electric power system monitoring and controlling apparatus according to claim 1 or 2, further comprising alarm generating means for generating an alarm when the data creation permission / inhibition determining means performs the prohibition. Power system monitoring and control equipment. 4. The power system monitoring control apparatus according to claim 1, wherein the operation data written in the operation data file when the data creation permission / inhibition determination means performs the prohibition. To an operation data backup file, and an operation data moving means for moving the operation data to the operation data spare file, and a data creation prohibition releasing means for releasing the prohibition by the data creation permission / inhibition judging means after the operation data moving means completes the movement of the operation data. An electric power system monitoring and controlling device characterized by being provided.