JPH1132448A - Supervisory controller for power system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To deliver an alarm output indicative of the failure of a power system, or the like, to the I/O unit side by detecting variation in SV information and TM information indicative of the state of the power system and making a decision whether the variation is caused by a failure of an abnormality of the power system with reference to a predetermined variation decision table. SOLUTION: A previous value holding table 102 preserves SV information and TM information indicative of the state of a power system inputted from an input means 101. A variation detecting means 103 compares the SV information from the input means 101 with that preserved on the previous value holding table 102 to detect the variation of the information and stores the SV information and TM information inputted from the input means 101 on the previous value holding table 102. An alarm output decision table 104 makes a decision whether an alarm is outputted or not based on the variation of information detected by the variation detecting means 103 and the content of a variation decision table 106. An alarm output means 105 notifies the alarm output to an operator upon request from the alarm output decision means 104. Finally, an I/O unit 100 determines a failure on a power system, or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power system monitoring and control device, and more particularly to a system for determining whether a change in binary information and numerical information detected in an input / output device is caused by a failure or abnormality in a power system. The present invention relates to a power system monitoring and control device configured to output an alarm output when a failure or abnormality occurs from an input / output device.

[0002]

2. Description of the Related Art For proper operation of an electric power system, it is indispensable to collect various information in the system at a monitoring center and use the collected information for monitoring and control. Is used. In this power system monitoring and control device, as shown in FIG. 19, binary information (hereinafter, referred to as SV information) and numerical information (hereinafter, referred to as TM information) representing the state of the power system are monitored remotely by a plurality of units. The signals are transmitted from the control device 400 to the input / output device 100 of the power system monitoring and control device. This input / output device 10
The SV information and TM information of the power system input to 0 are sent to the pre-processing device 200, where they are coded and converted into engineering values, and transmitted to the monitoring and control device 300. The supervisory control device 300 including a plurality of computers 301 analyzes the state of the power system based on the input SV information and TM information, and if a failure or abnormality of the power system is determined, notifies the operator by outputting an alarm. It is supposed to.

[0003]

However, the above-described power system monitoring and control apparatus has a problem in that a failure or abnormality actually occurs in the power system, and the processing until an alarm output is notified does not proceed quickly. That is, the information of the power system is
00, the alarm output is actually notified after some change occurs in the power system to pass through other devices such as the pre-processing device 200 and the transmission line until the alarm output is notified from the monitoring control device 300. A considerable amount of time will elapse before it is completed.

It is desirable to detect the occurrence of a failure or abnormality in the power system in the input / output device 100 and promptly notify the operator. However, the current input / output device 100 does not have such a function, and cannot meet a demand for quickly issuing an alarm output.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a power system monitoring and control device capable of notifying an input / output device of an alarm output when a failure or abnormality occurs in a power system.

[0006]

According to a first aspect of the present invention, there is provided an input / output device for inputting SV information and TM information indicating a state of a power system from a remote monitoring control device, A pre-processing device that converts information provided by the device into a coded or engineering value so as to be processed by a computer, and processes information from the pre-processing device,
In a power system monitoring and control device comprising a monitoring and control device for notifying a state and a change of the power system, the input / output device detects a change in SV information and TM information indicating the state of the power system input from the remote monitoring and control device. Detection means for detecting, a determination means for determining whether or not the change detected by the detection means is due to a failure or abnormality of the power system, by comparing it with a predetermined change determination table; Alarm output means for notifying an alarm output based on the determination result.

[0007] In the power system monitoring and control device having the above configuration, a failure or abnormality of the power system in the input / output device can be determined from the detected changes in the SV information and the TM information. Thus, when a change occurs in the power system, it is possible to promptly notify an alarm output.

Further, the invention according to claim 2 is configured such that the change determination table makes a determination according to the presence / absence of a change in SV information corresponding to the switch operation on a one-to-one basis.
When a change in SV information that does not correspond to one-to-one is detected, it is determined that a failure or abnormality of the power system has occurred.

In the electric power system monitoring and control apparatus having the above-described configuration, when the operator operates the switch, SV information corresponding to the operation on a one-to-one basis is provided from the monitoring and control apparatus to the determination table via the preprocessing device. . For this reason, the determination means determines the S of the switch in response to the switch operation by the operator.
It can be determined that the change in the V information is not due to a failure or abnormality in the power system, while the change in the SV information of the switch not operated by the operator can be determined to be due to a failure or abnormality in the power system.

According to a third aspect of the present invention, the change determination table is configured to make a determination in accordance with the presence or absence of a change in SV information that is interlocked with a switch operation, and a change in SV information that is not interlocked with an operation is detected. At this time, it is characterized that it is determined that the power system has failed or is abnormal.

[0011] In the power system monitoring and control device having the above-described configuration, when the operator operates the switch, SV information interlocked with the operation is stored in the change determination table from the monitoring and control device via the preprocessing device. For this reason, the determination means determines that the change in the SV information linked to the switch operation is not due to a failure or abnormality of the power system,
If the SV information of the interlocking switch changes even though the operator is not operating, it can be determined that the failure is due to a failure or abnormality of the power system.

Further, the invention according to claim 4 is characterized in that the change determination table is configured to make a determination in accordance with the presence or absence of a change in TM information that is changed by the operation of the switch, and when a change other than a change in TM information due to the operation is detected. In addition, it is characterized in that it is determined that the power system has failed or is abnormal.

[0013] In the power system monitoring and control device having the above-described configuration, TM information that changes when an operator operates the switch is stored in the change determination table from the monitoring and control device via the preprocessing device. For this reason, the determination means determines that the change in the TM information after the operation of the switch is not caused by the failure or abnormality of the power system, while the change of the TM information unrelated to the operation of the switch is caused by the failure or abnormality of the power system. Can be determined.

According to a fifth aspect of the present invention, the change determination table is configured to make a determination according to the presence or absence of an automatic state change under a normal state of the power system. When a change in the power system is detected, it is determined that the power system is faulty or abnormal.

In the power system monitoring and control device having the above-mentioned configuration, information on the condition of automatic state change under the normal state of the power system is stored in the change determination table from the monitoring and control device via the preprocessing device. . For this reason,
The determination means determines that the change of the power system due to the automatic turning on and off is not due to a failure or abnormality of the power system,
On the other hand, changes in SV information and TM information when conditions are not met can be determined to be due to a failure or abnormality of the power system.

Further, the invention according to claim 6 is characterized in that the change determination table is configured to make a determination according to whether or not the SV information and the TM information have changed due to the work of the power system, and the change other than the change of the SV information and the TM information due to the work. Is detected, the failure or abnormality of the power system is determined.

In the power system monitoring and control device having the above-described configuration, information that the SV information and the TM information change with the operation of the power system is stored in the change determination table from the monitoring and control device via the preprocessing device. For this reason, the determination means uses the SV information and the T
It can be determined that the change in the M information is not due to a failure or abnormality in the power system, while the change in the SV information and TM information except during the operation of the power system can be determined to be due to a failure or abnormality in the power system.

The invention according to claim 7 has a plurality of power system monitoring and control devices connected to each other via a transmission line, and the input / output device of each power system monitoring device is claim 1
Input / output of another plurality of power system monitoring and control devices connected by a transmission line with the contents of one change determination table given to the input / output device, A table transmission means for transmitting the same information to an input / output device of one power system monitoring / control device, wherein the same information is provided to another plurality of power system monitoring / control devices; And the same determination result is output.

In the power system monitoring and control device having the above-described configuration, the contents of the change determination table given to one input / output device are transmitted to the input / output device of another power system monitoring and control device by the table transmission means of the input / output device. Transmitted. For this reason, similarly to the case where the abnormality determination of the power system can be performed in one input / output device, the abnormality determination can be performed in the input / output device of another power system monitoring and control device to which the same information is given, It is possible to output the same determination result.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) In FIG. 1, an electric power system monitoring and control device is an input / output device 100 for inputting SV information and TM information from a remote monitoring and control device 400, and codes information from the input / output device 100 into codes. Or a pre-processing device 200 for converting to an engineering value, and a monitoring control device 300 for processing information from the pre-processing device 200 and leaving the state and changes of the power system to an operator.

The supervisory control device 300 receives an operation request from an operator and sends an operation output request to the preprocessing device 200.
Send to The preprocessing device 200 transmits an operation output request to the input / output device 100, and the input / output device 100 transmits the operation output request to the remote monitoring control device 400.

Further, the input / output device 100 of the present embodiment
Is composed of the following means. That is, the input means 101
Inputs SV information and TM information indicating the state of the power system from the remote monitoring control device 400. The previous value holding table 102 stores the SV information and TM input by the input unit 101.
To save the information. The change detecting means 103 is an input means 101
The SV information is compared with the SV information stored in the previous value holding table 102 to detect a change in information, and the SV information and TM information input by the input means 101 are stored in the previous value holding table 102.

The alarm output determination table 104 determines whether or not to output an alarm based on the change information detected by the change detection means 103 and the contents of the change determination table 106. The alarm output unit 105 notifies an operator of an alarm output according to a request from the alarm output determination unit 104.

The change determination table 106 stores information for determining whether or not to output an alarm when a change occurs in the power system. The timer processing unit 107 updates the timer information in the change determination table 106. The determination table receiving means 108 stores the contents of the change determination table 106 in the preprocessing device 2
00 and is stored in the change determination table 106.
The transmitting unit 120 transmits the SV information and the TM information input from the input unit 101 to the preprocessing device 200. The receiving unit 121 receives the operation output request sent from the preprocessing device 200. The output unit 122 receives the operation output request from the receiving unit 121 and transmits the operation output request to the remote monitoring control device 400.

The present embodiment has the above-described configuration, and when a switch is operated by an operator, an operation request from the monitoring control device 300 and the change determination table registration information shown in FIG. Sent to 100. This operation request is transmitted to the remote monitoring control device 400 via the receiving means 121 and the output means 122.

The change determination table registration information is input to the determination table receiving means 108, and the SV number a1 of the record position of the remote monitoring control device number A1 in the change determination table 106 shown in FIG. The operation direction A3 and the operation waiting time A4 are stored in the operation waiting time a3.

On the other hand, the processing of the SV information after the operation of the switch is executed as follows. That is, when an operation request is given to the remote monitoring control device 400, the state of the switch changes (for example, the circuit breaker is turned on → off). Switch status (SV information)
Is transmitted from the remote monitoring control device 400 to the input means 101. The SV information is sent from the input unit 101 to the change detection unit 103 and the transmission unit 120.

In the change detecting means 103, the SV information and
The contents of the previously input SV information in the previous value holding table 102 are compared with each other to determine whether or not the SV information has changed.
After this determination, the SV information from the input means 101 is stored in the previous value holding table 102. When a change in the SV information is detected based on the determination result of the change detection unit 103, the SV position where the change is detected (the remote monitoring control device number (T
CB), the SV number (SV-B)) and the direction of change (on or off) are transmitted to the alarm output determination means 104.

The alarm output determination means 104 determines whether the following alarm output is possible.

(1) Change determination table 106 shown in FIG.
When the SV number a1 at the record position of the remote monitoring control device number (TC-B) matches the changed SV number (SV-B) and the change direction matches the change direction a2, the operation by the operator is performed. , And at this time, the alarm output determines “No”.

(2) If the above does not apply, it is determined that the power system is faulty or abnormal. At this time, the alarm output is determined to be “OK” and an alarm output request is output to the alarm output means 105.

The operation waiting time a3 in the change determination table 106 shown in FIG. 3 indicates the time from the control operation until the SV information of the switch operation is transmitted to the input / output device 100. A change in the operated switch that occurred during this time is “No” in the determination of (1) above, and is determined to be a change due to the operation. The timer processing means 107 counts down the operation waiting time a3 every second, and when the waiting time becomes zero, the information (a1, a2) is deleted by the change determination table 106.

Thus, only the change of the operated switch within the operation waiting time is determined to be a normal change by the operation, and
Otherwise, it is possible to determine that the power system has failed or is abnormal.

As described above, according to the present embodiment, a change in SV information of a switch caused by a switch operation by an operator by the input / output device 100 alone and a change caused by a failure or abnormality of the power system are distinguished sharply. be able to. As a result, a failure or abnormality of the power system can be determined in the input / output device 100, and the occurrence of the failure or abnormality can be quickly reported as compared with a case where the monitoring control device 300 notifies an alarm output. Become.

(Embodiment 2) Another embodiment of the present invention will be described. In FIG. 4, the monitoring control device 3
00 is a related SV table 310 for storing combination information of a switch and a related SV, and a related SV table 310.
Has a table setting means 311 for setting information in the table. Further, the input / output device 100 is configured by the same means as in the above embodiment.

In this embodiment, the combination information including the switches and the related SVs shown in FIG. 5 is stored in the related SV table 310 by the table setting means 311 before the operator operates the switches. Is done.

Next, when the switch is operated, the related SV information of the operated switch is extracted from the related SV table 310 (g3 in FIG. 5 at the time of a cutting operation, g4 of FIG. 5 at the time of an on-operation), and FIG. The operation request and the change determination table registration information are set from the monitoring control device 300 to the preprocessing device 20.
0 to the input / output device 100.

The change judgment table registration information in FIG. 6 is sent to the judgment table receiving means 108, and the SV number b1 of the record position of the remote monitoring control device number B1 in the change judgment table 106 shown in FIG. Change direction b2
In the operation direction B3, and in the operation waiting time b3, the operation waiting time B
4. The related SV (B5) is stored in the related SVb4.

On the other hand, the processing of the SV information after the operation of the switch is executed as follows. That is, when an operation request is given to the remote monitoring control device 400, the state of the switch changes (for example, the circuit breaker is turned on → off). Switch status (SV information)
Is transmitted from the remote monitoring control device 400 to the input means 101. The SV information is sent from the input unit 101 to the change detection unit 103 and the transmission unit 120. Further, the SV information is transmitted from the transmitting means 120 to the preprocessing device 200.

Further, the change detecting means 103 compares the input SV information with the contents of the previously input SV information in the previous value holding table 102 to determine whether or not the SV information has changed. After this determination, S from the input means 101
The V information is stored in the previous value holding table 102. When a change in the SV information is detected based on the determination result of the change detection unit 103, the change in the SV position (the remote monitoring control device number (TC-B) and the SV number (SV-B)) is detected. The direction (entering or turning off) is transmitted to the alarm output determination means 104.

The alarm output judging means 104 judges whether an alarm output is possible or not as follows.

(1) Change determination table 106 shown in FIG.
When the SV number b1 at the record position of the remote monitoring control device number (TC-B) matches the changed SV number (SV-B) and the change direction matches the change direction a2, the operation by the operator is performed. , And at this time, the alarm output is determined to be “No”. If the above conditions are not met (2)
Execute

(2) Change determination table 106 shown in FIG.
When the information b4 of the SV related to the record position of the remote monitoring control device (TC-B) of the above-mentioned SV matches the changed SV number (SV-B) and the change direction matches the change direction b6, the operator determines It is determined that the switch that is interlocked with the operation has changed, and the alarm output is also determined to be “No” at this time.

(3) If the condition does not correspond to (2), it is determined that the power system is faulty or abnormal. At this time, the alarm output is determined to be “OK” and an alarm output request is output to the alarm output means 105.

The operation waiting time b3 in the change determination table 106 shown in FIG. 7 indicates the time from the control operation until the SV information of the switch operation is transmitted to the input / output device 100. It is determined that the change in the related SV occurring during this time is a change due to the operation. The timer processing means 107 counts down the operation waiting time every second, and when the waiting time becomes zero, the information (b1, b2, b4, b5,
b6 and b7) are deleted from the change determination table 106.

Thus, it is possible to judge only a change in the related SV within the operation waiting time as a normal change due to the operation, and to judge otherwise as a failure or abnormality of the power system.

As described above, according to the present embodiment, the change of the switch resulting from the switch operation by the operator alone by the input / output device 100 and the change of the SV information linked by the operation, the failure of the power system or The change due to the abnormality can be distinguished. Thereby, a failure or abnormality of the power system can be determined in the input / output device 100,
Compared to the monitoring and control device 300 that reports an alarm output, it is possible to promptly report the occurrence of a failure or abnormality.

(Embodiment 3) Another embodiment of the present invention will be described. In FIG. 8, the monitoring control device 3
00 has an associated TM table 312 for storing combination information of switches and TMs interlocked with the switches. In addition, the input / output device 100 determines the TM
It has TM information monitoring means 110 for monitoring the TM value stored in the previous value holding table 102 with reference to the monitoring information.

In this embodiment having the above-described structure, prior to the operation of the switch by the operator, the table setting means 311 associates the combination information consisting of the switch shown in FIG. It is stored in the TM table 312.

Next, when the switch is operated, the related TM information of the operated switch is extracted from the related TM table 312 (h4 and h5 are set as the upper limit values when the switch is turned on, and h6 and h7 are set as the upper limit values when the switch is turned off). 10), the change determination table registration information shown in FIG. 10 is transmitted from the monitoring control device 300 to the input / output device via the preprocessing device 200. further,
The operation request is transmitted to the remote monitoring control device 400 via the receiving unit 121 and the output unit 122.

Further, the change judgment table registration information of FIG. 10 is sent to the judgment table receiving means 108, and the TM number C3 of the record position of the remote monitoring control device number C1 of the change judgment table 106 of FIG. , The lower limit value C5, the monitoring time C6, and the monitoring start time C7 are stored.

On the other hand, the processing of the TM information after the operation of the switch is executed as follows. That is, the state change (T
M information) is input from the remote monitoring control device 400 to the input unit 101.
Is input to This TM information is sent to the change detection means 103 and stored in the previous value holding table 102. The TM information stored in the previous value storage table 102 is monitored by the TM information monitoring unit 110 that operates at a fixed cycle. This T
The M information monitoring means 110 repeats the following processing at regular intervals to determine whether or not to output an alarm.

(1) The records (C1, C3) of the change determination table 106 of FIG. 11 are checked in order from the beginning to the end, and it is confirmed whether or not the monitoring start time C7 and the monitoring time C6 exist. The following process (2) is executed for records that meet the conditions of the monitoring times C6 and C7.

(2) The corresponding TM value stored in the previous value storage table 102 and the change determination table 106 in FIG.
Is compared with the upper limit value CA and the lower limit value C5, and if it is within this range, it is determined that the operation is performed by the operator. At this time, the alarm output is determined to be “No”. On the other hand, when the TM value is out of the upper limit value C4 and the lower limit value C5, it is determined that the power system is faulty or abnormal. At this time, the alarm output is determined to be "OK", and the alarm output means 105 is requested to output the alarm. Is output.

The monitoring time C6 in the change determination table 106 indicates the time for monitoring the change in TM. The timer processing means 107 counts down the monitoring time C6 every second, and when the monitoring time C6 becomes zero, the information (C4, C5) is deleted from the change determination table 106. Thus, it is possible to determine only a change in TM within a certain period of time after the switch operation by the operator as a normal change, and to judge otherwise as a failure or abnormality of the power system.

As described above, according to the present embodiment, the input / output device 100 alone causes T due to the operation of the switch by the operator.
It is possible to distinguish between a change in the M information and a change due to a failure or abnormality of the power system. Thereby, the input / output device 1
At 00, the failure or abnormality of the power system can be determined, and the failure or abnormality can be notified more quickly than when the monitoring and control device 300 notifies an alarm output.

In this embodiment, when the change of the TM information in response to the operation of the switch is within the specified range of the upper and lower limits, the alarm output is determined to be "No". A change in information can be unconditionally determined to be “no”.

Although only the TM change for a certain period of time after the operation of the switch is monitored, the upper and lower limits of the TM to be monitored are set in the change determination table 106 in advance, so that the TM is constantly monitored. It is also possible to monitor the value. In this case, it is necessary to set a semi-permanent value for the monitoring time C6.

(Embodiment 4) Another embodiment of the present invention will be described. In FIG. 12, the monitoring control apparatus 300 has an SV combination table 313 for storing SV state combination information for automatically changing SV information, which is determined to be a normal change when a change occurs. Further, the input / output device 100 is configured by the same means as that of the second embodiment except for the timer processing means 107, the receiving means 121 and the output means 122.

This embodiment has the above-mentioned structure. Prior to the operation of the switch by the operator, the table setting means 311 changes the automatically changing SV information shown in FIG. Is stored in the SV combination table 313. The contents stored in the SV combination table 313 are transmitted to the determination table receiving unit 108 via the preprocessing device 200.
Is transmitted to

On the other hand, the processing of the SV information is executed as follows. That is, the state of the switch (SV information) is transmitted from the remote monitoring control device 400 to the input means 101. This S
The V information is sent to the change detecting means 103 and the transmitting means 120. Further, the SV information is transmitted from the transmitting means 120 to the preprocessing device 200. Further, the change detecting means 103 compares the input SV information with the contents of the previously input SV information in the previous value holding table 102 to determine whether there is a change in the SV information. After this determination, input means 10
The SV information from 1 is stored in the previous value storage table 102.

According to the determination result of the change detecting means 103, S
When a change in V information is detected, the SV in which the change is detected
Position (remote monitoring control device number (TC-B), SV
The number (referred to as SV-B) and the direction of change (entering or turning off) are transmitted to the alarm output determining means 104.

The alarm output judging means 104 judges whether or not an alarm is output as follows.

(1) Change determination table 10 shown in FIG.
In step 6, the table d3 is extracted when the cut-off change is made, and the table d4 is extracted when the cut-in change is made, based on the TC-Bth table information d1 and the SV-Bth table information d2. If at least one SV position d5 is registered in the extracted information, the following (2) is executed. If no SV position d5 has been registered, it is unconditionally determined that the power system has failed or is abnormal, and at this time, the alarm output is “OK”.
And outputs an alarm output request to the alarm output means 105.

(2) The SV position d5 stored in the table extracted in (1) is sequentially extracted, and the state of the SV corresponding to the position is stored in the previous value holding table 1.
Remove from 02. It is confirmed whether or not the state of the extracted SV position d5 matches the state d6. The states of all the SV positions are compared, and if the states of all the SV positions match the state d6, it is determined that the change is a normal change, and at this time, the alarm output is determined to be “No”. On the other hand, if at least one of the states does not match, it is determined that the power system is faulty or abnormal. At this time, the alarm output is determined to be “OK” and an alarm output request is output to the alarm output means 105.

As described above, according to the present embodiment, when the SV information changed by the input / output device 100 alone and a plurality of pieces of SV information related to the SV information are in a certain state, the power system fails. Or, it can be determined that the change is not abnormal but normal. This allows the input / output device 100 to determine the failure or abnormality of the power system,
It is possible to notify a failure or abnormality more quickly than the monitoring and control device 300 that reports an alarm output.

In the present embodiment, a plurality of SV status information (SV position, status) related to automatically changing SV information for determining a normal change at the time of turning change and at the time of turning change are monitored and controlled. Although the information is transmitted from 300, this information is not usually changed, so that the input / output device 100 can have this as a fixed value. Further, a method of entering SV information that automatically changes and defining one set of information for each cut change is used.
By changing the configuration of 06, it is possible to make a determination under more complicated conditions.

(Embodiment-5) Another embodiment of the present invention will be described. In FIG. 15, the monitoring and control apparatus 300 includes the same units as those in the first embodiment. In addition, the input / output device 100 has a change determination table 106.
TM information monitoring means 110 for monitoring TM values stored in previous value holding table 102 with reference to TM monitoring information of
Having.

In this embodiment having the above-described configuration, when the work of the power system is started, the SV information and the TM information that change with the work are being worked in the setting direction E4 of the change determination table registration information shown in FIG. The change determination table registration information in which the value: 1) is set is stored in the monitoring control device 300.
Is transmitted to the determination table receiving means 108 via the preprocessing device 200. Further, the judgment table receiving means 1
From 08, the working flag (e4 or e5) on the change determination table 106 shown in FIG. 17 for the SV position or the TM position indicated by E2 and E3 in the change determination table registration information in FIG. 16 is set ("1").

On the other hand, the processing of the SV information and TM information during the operation of the power system is executed as follows. That is, the state of the switch (SV information) and the numerical information (TM information)
It is transmitted cyclically from the remote monitoring control device 400 to the input means 101. The input SV information and TM information are input from the input unit 101 to the change detecting unit 103 and the transmitting unit 1.
20 and sent to. These SV information and TM information are transmitted from the transmitting means 120 to the preprocessing device 200.

Further, the change detecting means 103 compares the input SV information with the contents of the previously input SV information in the previous value holding table 102 to determine whether there is a change in the SV information. Further, after this determination, the change detecting means 1
From 03, the SV information and the TM information are stored in the previous value holding table 1
02.

According to the judgment result of the change detecting means 103, the SV
When a change in the information is detected, the SV position where the change is detected is transmitted to the alarm output determination unit 104. The alarm output determination means 104 determines whether or not to output an alarm as follows.

(1) Change determination table 10 shown in FIG.
6, the working flag e4 corresponding to the changed SV position on
Is in the set ("1") state, it is determined that the state has changed due to the work of the power system.
Is determined.

(2) If the above does not apply, it is determined that the power system is faulty or abnormal. At this time, the alarm output is determined to be “OK”, and an alarm output request is output to the alarm output means 105.

Further, at the end of the work of the power system, the setting direction E4 of the change determination table registration information in FIG.
The change determination table registration information in which the in-work release (value: 0) is set is sent from the monitoring control device 300 to the determination table receiving means 108 via the preprocessing device 200. Further, the work-in-progress flag (e4 or e5) on the change determination table 106 for the SV position or the TM position indicated by E2 and E3 in the change determination table registration information is reset ("0") from the determination table receiving means 108.

As described above, according to the present embodiment, it is possible for input / output device 100 alone to determine that changes in SV information and TM information due to work in the power system are not faults or abnormalities in the power system but are normal changes. it can. As a result, the input / output device 100 can determine a failure or abnormality of the power system, and can notify the failure or abnormality more quickly than the monitoring / control device 300 that reports an alarm output.

Embodiment 6 Another embodiment of the present invention will be described. In FIG. 18, one power system monitoring and control device A includes an input / output device 100 and a preprocessing device 20.
0 and the monitoring control device 300. Also, the other power system monitoring and control device B is
0, a pre-processing device (not shown) and a monitoring control device. This power system monitoring and control device is not limited to the two illustrated ones, and can be configured by a larger number of power system monitoring and control devices.

Further, the input / output device 100 transmits the contents of the change determination table from the power monitoring and control device A to the other power system monitoring and controlling device B using the transmission line 140. It has a table transmission means 109 for receiving the contents of the change determination table.

Further, the input / output device 130 has the same configuration as that of the table transmitting means 109.
1. The judgment table receiving means 112 and the change judgment table 10 which are configured in the same manner as the judgment table receiving means 108
6 has a change determination table 113 configured similarly to FIG.

In this embodiment, the information of the change determination table stored in the power system monitoring and control device A is transmitted from the monitoring and control device 300 via the preprocessing device 200 to the input / output device 100 via the preprocessing device 200. Transmitted to the means 108. This information is stored in the change determination table 106 and sent to the table transmission means 109. Information for the change determination table is transmitted from the table transmission means 109 via the transmission line 140 to the table transmission means 111 provided in the input / output device 130 of the other power system monitoring and control apparatus B.
Is transmitted to This information is sent from the table transmitting unit 111 to the determination table receiving unit 112, and further stored in the change determination table 113.

The processing of the SV information and the TM information in the power system monitoring and control apparatus B is executed by the method described in each of the above embodiments. At this time, the input / output device 130 determines whether or not to output an alarm based on the contents of the change table 113.

As described above, according to the present embodiment, when the states of the devices of the power system are input to the plurality of power system monitoring and control devices, the contents of the change determination table are changed to one power system monitoring and control device A. Can also be transmitted to the other power system monitoring and control device B, and when information for determining a power system abnormality is given to the input / output device 130 of one power system monitoring and control device, the same information Is also provided to the input / output device 130 of the other power system monitoring and control device B, and the same determination result can be output. Thus, for example, a failure or abnormality of the power system can be detected by using the method described in each of the above embodiments, and the failure or abnormality can be quickly reported.

[0084]

As described above, according to the present invention, the input / output device has the SV information and the TM indicating the state of the power system.
Detection means for detecting a change in information, and determination means for determining whether the detected change is due to a failure or abnormality of the power system by comparing it with a predetermined change determination table,
Since an alarm output means for notifying an alarm output based on the determination result is provided, it is possible to determine a failure or abnormality of the power system in the input / output device from the detected change in the SV information and the TM information. It is possible to notify a failure or an abnormality more quickly than a device that notifies an alarm output.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a power system monitoring and control device according to the present invention.

FIG. 2 is a configuration diagram showing change determination table registration information.

FIG. 3 is a configuration diagram showing a change determination table.

FIG. 4 is a block diagram showing another embodiment of the present invention.

FIG. 5 is a configuration diagram showing a related SV table.

FIG. 6 is a configuration diagram showing change determination table registration information.

FIG. 7 is a configuration diagram showing a change determination table.

FIG. 8 is a block diagram showing another embodiment of the present invention.

FIG. 9 is a configuration diagram showing a related TM table.

FIG. 10 is a configuration diagram showing change determination table registration information.

FIG. 11 is a configuration diagram showing a change determination table.

FIG. 12 is a block diagram showing another embodiment of the present invention.

FIG. 13 is a configuration diagram showing an SV combination table.

FIG. 14 is a configuration diagram showing a change determination table.

FIG. 15 is a block diagram showing another embodiment of the present invention.

FIG. 16 is a configuration diagram showing change determination table registration information.

FIG. 17 is a configuration diagram showing a change determination table.

FIG. 18 is a block diagram showing another embodiment of the present invention.

FIG. 19 is a block diagram showing a conventional power system monitoring and control device.

[Explanation of symbols]

 100, 130 I / O device 200 Pre-processing device 300 Monitoring and control device 104 Alarm output determination device 106, 113 Change determination table 109, 111 Table transmission means 310 Related SV table 312 Related TM table 313 SV combination table

Claims (7)

[Claims] An input / output device for inputting binary information and numerical information indicating a state of a power system from a remote monitoring control device;
A preprocessing device that converts information provided from the input / output device into a coded or engineering value so as to be processed by a computer, and a supervisory control that processes information from the preprocessing device and notifies the state and change of the power system. And a detecting means for detecting a change in binary information and numerical information indicating the state of the power system input from the remote monitoring and controlling device, and Determining means for determining whether the change detected by the means is due to a failure or abnormality of the power system by comparing it with a predetermined change determination table, and issuing an alarm based on the determination result obtained by the determining means. A power system monitoring and control device, comprising: an alarm output unit that reports an output. 2. The method according to claim 1, wherein the change determination table is a switch operation.
It is configured to make a determination in accordance with the presence or absence of a change in binary information corresponding to one-to-one. When a change in binary information that does not correspond to one-to-one operation with a switch operation is detected, it is determined that the power system is faulty or abnormal. The power system monitoring and control device according to claim 1, wherein 3. The change determination table is configured to make a determination in accordance with the presence or absence of a change in binary information that is interlocked with a switch operation. 2. The power system monitoring and control device according to claim 1, wherein it is determined that the system is faulty or abnormal. 4. The change determination table is configured to make a determination in accordance with the presence / absence of a change in numerical information that changes due to a switch operation, and when a change other than a change in numerical information due to an operation is detected, a failure of the power system is detected. The power system monitoring and control device according to claim 1, wherein the power system monitoring and control device is determined to be abnormal. 5. The change determination table is configured to make a determination according to the presence or absence of an automatic state change under a normal state of the power system, and a change other than a change in the power system due to automatic switching on and off is detected. 2. The system according to claim 1, wherein when the power system fails, it is determined that the power system has failed or is abnormal.
A power system monitoring and control device as described in the above. 6. The change determination table is configured to make a determination in accordance with the presence or absence of a change in binary information and numerical information due to work in the power system, and a change other than a change in binary information and numerical information due to work is detected. 2. The power system monitoring and control device according to claim 1, wherein when it is determined that the power system has failed or is abnormal. 7. An electric power system monitoring and control device connected to each other via a transmission line, wherein each of the input / output devices of the electric power system monitoring device is a detection unit, a determination unit, and an alarm output. Table transmission means for transmitting the contents of one change determination table provided to the input / output device to the input / output devices of the other plurality of power system monitoring and control devices connected by a transmission line. When information for determining an abnormality in the power system is provided to the input / output device of one power system monitoring and control device, the same information is input and output of the plurality of other power system monitoring and control devices. A power system monitoring and control device, which is also provided to the device and configured to output the same determination result.