JPH09247859A - Monitoring and controlling apparatus in power system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely grasp the change of numerical information data which is caused in an accident in power system. SOLUTION: A monitoring and controlling apparatus in power system includes an input processing means 31 for entering numerical information data and conditional change data for each facility in a present data area through a data transmission unit 20 from the facilities in power system, and a numerical data modifying and single-line diagram display processing means 33 for processing and displaying the numerical data stored in the present data area on a display means. The monitoring and controlling apparatus includes also a cycle changing means 36 for shortening a cycle from a time of processing numerical data to a time for displaying the single-line diagram on the display while the failure time goes on from the start of detecting a failure to the disposal of the failure.

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 controlling apparatus for monitoring and controlling a power system with a computer.

[0002]

2. Description of the Related Art FIG. 17 and FIG. 18 are block diagrams of a conventional power system supervisory control device. In Fig. 17, the power system equipment 10
Means a set of a plurality of equipments, and the numerical information and state change information of each equipment is input to the slave station 21 in the information transmission device 20, further passes through the master station 22, and the power system monitoring control device 30. Be transmitted to. Then, in the input processing means 31, the current data area 32
Save.

Numerical information processing, single line connection diagram display processing means
As shown in FIG. 18, the numeral 33 is for inputting the numerical information of the power system equipment 10 currently stored in the data area 32 (T1), processing it (T2), and displaying it on the single line connection diagram display device 34 (T
3) By delaying for a certain time (T4), active power 201, 201A, 201B and reactive power 202, 20 as shown in FIG.
Numerical information of the values of 2A and 202B is displayed in a fixed cycle, for example, 10 seconds. Here, FIG. 2 shows a single-line connection diagram screen of the power system displayed on a display device such as a CRT.

Conventionally, a transmission line having a transmission rate of several thousand bits per second per line has been adopted as a general means for transmitting information from the slave station 21 to the master station 22. For the function of monitoring the state of the power system, the number of transmission lines is selected according to the amount of information to be transmitted so that the information in the current data area 32 is updated every few seconds. Therefore, the information transmitted from the child station 21 to the parent station 22 is updated every few seconds and transmitted to the power system monitoring control device 30.

[0005]

[Problems to be Solved by the Invention] Conventionally, power system equipment 10
Since the numerical information of is displayed on the single-line connection diagram display device 34 at a constant cycle, the active power 201, 201A, 201B and reactive power 202, 202A, 202A, 202A, 202B In the worst case, the change in the numerical information of 202B is
There is a problem in that it cannot be grasped until a few seconds after the next cycle of the transmission cycle.

Further, due to the recent development of transmission technology, it has become possible to transmit a large amount of information at high speed, and a transmission device having a transmission speed of 10 Mbits / sec or more has come to be adopted. As a result, conventionally, the data is transmitted at a cycle of several seconds due to the limitation of the transmission speed, but it is now transmitted at a cycle of several milliseconds. The numerical information processing and the single-line connection diagram display processing means 33 causes the single-line connection diagram display device 34 to be displayed. There has been a demand for a power system monitoring and control device that can shorten the display cycle and reliably grasp the changes in the numerical information described above.

The present invention has been made in view of the above circumstances, and more reliably than ever before, changes in numerical information of active power and reactive power that change due to operation of a circuit breaker of a power system and occurrence of an accident in power system equipment. It is an object of the present invention to provide a power system monitoring and control device that can be grasped in the above.

[0008]

According to a first aspect of the present invention, there is provided an electric power system monitoring and controlling apparatus, wherein numerical information and state change information of individual equipment from an equipment included in the electric power system via an information transmission device. Power having input processing means for inputting into the current data area and numerical information processing for processing and displaying numerical information of the power system equipment stored in the current data area on a display device, single-line diagram display processing means The system monitoring and control apparatus is provided with cycle switching means for processing the numerical information and shortening the cycle displayed on the single-line connection diagram display device during the period from the detection of the accident in the power system equipment to the end of the accident processing.

A power system monitoring and controlling apparatus according to claim 1 of the present invention inputs numerical information and condition information of each facility from a facility included in a power system via an information transmission device into a current data area. Then, the numerical information currently input in the data area is processed at a constant period and displayed on the single-line connection diagram display device. An accident of the power system equipment is detected from the state change information of the power system equipment which is currently input in the data area, and during the period when the accident processing is completed, the numerical information is processed and the cycle displayed on the single line connection diagram display device is shortened.

According to a second aspect of the present invention, an electric power system monitoring and control apparatus inputs numerical information and condition information of individual equipment from an equipment included in the electric power system via an information transmission device into a current data area. In the electric power system monitoring and control device having the input processing means for performing, and the numerical information processing for processing the numerical information of the electric power system equipment currently stored in the current data area to be displayed on the display device, the single line connection diagram display processing means, Cycle switching means for processing the numerical information and shortening the cycle displayed on the single line connection diagram display device during the period from the detection of the accident in the power system equipment to the end of the accident processing, and the operation for operating the power system equipment from the display screen. And a processing means.

According to a second aspect of the present invention, an electric power system monitoring and control apparatus inputs numerical information and condition information of each piece of equipment from an equipment included in the electric power system through an information transmission device into a current data area. Then, the numerical information currently input in the data area is processed at a fixed cycle and displayed on the single line connection diagram display device.
During the period from the start to the end of the operation of the electric power system equipment, the numerical information is processed and the cycle displayed on the single line connection diagram display device is changed to be shorter.

According to a third aspect of the present invention, there is provided an electric power system monitoring control device according to the first aspect, wherein a numerical information table for each accident type for specifying numerical information according to an accident type and each numerical information. In addition, a numerical information every period table for changing the period is added. Therefore, the type of accident is determined, specific numerical information is processed according to the determined accident type, and the cycle of displaying on the single-line connection diagram display device is shortened.

According to a fourth aspect of the present invention, there is provided a power system monitoring control device according to the second aspect, wherein the numerical information every period table for changing the period for each numerical information and the numerical information is specified from the equipment to be operated. A numerical information table for each operating facility is provided. Therefore, the specific numerical information according to the equipment to be operated is processed and the cycle displayed on the single line connection diagram display device is shortened.

According to a fifth aspect of the present invention, there is provided an electric power system monitoring and control apparatus according to the first aspect, wherein a unit for designating arbitrary numerical information from the numerical information of the electric power system equipment is designated. And a means for changing the display cycle of the display means based on the numerical information. Therefore, arbitrary numerical information is designated from the numerical information of the power system equipment, the designated numerical information is processed, and the cycle displayed on the single-line connection diagram display device is shortened.

In the electric power system monitoring and controlling apparatus according to [Claim 6] of the present invention, in [Claim 1], there is provided means for designating an arbitrary substation from a plurality of substation facilities constituting electric power system equipment. , Means for changing the display cycle of the display means based on the numerical information belonging to the specified substation.
Therefore, an arbitrary substation is designated from a plurality of substation facilities that the power system equipment comprises, and the numerical information belonging to the designated substation is processed and the cycle displayed on the single-line connection diagram display device is shortened.

According to a seventh aspect of the present invention, there is provided a power system monitoring and control apparatus according to the first aspect, which comprises means for designating an arbitrary facility from a plurality of substation facilities constituting the power system facility. A means for changing the display cycle of the display means based on the numerical information belonging to the designated equipment is provided. Therefore, an arbitrary facility is designated from a plurality of substation facilities constituting the power system facility, the numerical information on the designated facility is processed, and the cycle displayed on the single line connection diagram display device is shortened.

The power system monitoring and controlling apparatus according to [Claim 8] of the present invention is based on [Claim 1], wherein the means for arbitrarily specifying the numerical information of the electric power system equipment and the specified numerical information are used. And a means for changing the display cycle to the display means to the cycle designated by the means for arbitrarily designating. Therefore, the cycle of displaying the numerical information of the power system equipment and displaying it on the single-line connection diagram display device is arbitrarily specified and changed to the specified cycle.

[0018]

1 is a block diagram showing an embodiment of a power system supervisory control device according to the present invention. In FIG. 1, the same reference numerals are given to the same functional portions as those in FIG. 17, and detailed description will be omitted. What is newly added in the present embodiment is an accident detection and accident processing means 35 that detects an accident in the power system equipment from the state change information of the power system equipment 10 that is currently input in the data area 32 and performs accident processing. This is a cycle switching flag 36 that the numerical information processing / single line connection diagram display processing means 33 refers to in order to change the cycle.

FIG. 3 is a flow chart for explaining the processing of the means 35 for detecting an accident in the equipment and carrying out accident processing, which is started when the input processing means 31 inputs state change information. The current state information of the power system equipment 10 is input from the data area 32 (step S31) and analyzed (step S3).
2) Determine whether an accident has occurred (step S33).

Cycle switching flag when an accident is detected
36 is set (step S34), the numerical information processing, the single line connection diagram display processing means 33 is started (step S35), and the accident processing is performed (step S36). After the accident processing is completed, the cycle switching flag 36 is reset (step S37).

FIG. 4 is a flow chart for explaining the processing of the numerical information processing and single line connection diagram display processing means 33. The cycle switching flag 36 is input (step S41),
It is determined whether the cycle switching flag 36 is set (step S42).

If set, the delay time is set to "short cycle", for example, 1 second (step S43), and numerical information is input from the current data area 32 (step S45) at this short cycle, and the numerical information is processed. (Step S46), the numerical information is displayed on the single-line connection diagram display device, and the system waits for delay / startup (step S48). If it is not set, the "normal cycle" is set to, for example, 10 seconds (step S44), and the same processing as described above is performed to delay or wait for activation (step S44).
48).

According to the above-described embodiment, the period for processing the numerical information and displaying it on the single line connection diagram display device is changed to be short during the period from the detection of the accident in the electric power system equipment to the end of the accident processing. As a result, it becomes possible to more reliably grasp the changes in the numerical information of active power and reactive power that change with the occurrence of an accident.

FIG. 5 is a block diagram showing another embodiment of the power system supervisory control device. The characteristic feature of the configuration of this example is that the operation processing means 37 is provided, and as a result, equipment selection, ON / OFF operation, and equipment selection / restoration are performed. In FIG. 5, the same parts as those in FIG. 17 are designated by the same reference numerals and the description thereof is omitted.

FIG. 6 is a flow chart for explaining the processing of the operation processing means 37, which shows the device symbols of the circuit breaker 203 and the disconnector 204 of the power system from the display device 34 for displaying the single line connection diagram shown in FIG. Selection is started by an instruction (operation command), selection processing is performed (step S61), and the cycle switching flag 36 is set (step S62). Further, after the device on / off operation process (step S63) and the selective return process (step S64), the operation is ended, and the cycle switching flag 36
Is reset (step S65).

According to the above-described embodiment, the numerical information of the power system equipment is changed from the start to the end of the operation so that the cycle of processing the numerical information and displaying it on the single line connection diagram display device is shortened. This allows the operator to quickly grasp the change in the numerical information of active power and reactive power during operation.

FIG. 7 is a block diagram showing still another embodiment of the power system supervisory control device. The characteristic feature of the configuration of this example is that a numerical information table for each accident type 38 and a numerical information every period table 39 are added. 38 is a numerical information table for each accident type for specifying numerical information from the accident type,
For example, if there is a one-line fault in the transmission line, the reactive power of the transmission line
201 and active power 202 are specified. Reference numeral 39 is a numerical information every period table for changing the period for each numerical information to, for example, “short period” or “normal period”.

FIG. 8 is a flow chart for explaining the processing of the accident detection and accident processing means 35. Step S81-
The process up to S83 is as described above. When an accident is detected in step S83, the cycle switching flag 36 is set (step S84), and the numerical information corresponding to the accident type is identified from the numerical information table 38 for each accident type (step S85). ), Numerical information every cycle table 39
The cycle is set to "short cycle" (step S86). After the accident process is completed, the cycle switching flag 36 is reset (step S89), and the cycle of the numerical information specified in the numerical information cycle table 39 is returned to the "normal cycle" (step S810).
).

FIG. 9 is a flow chart for explaining the processing of the numerical information processing and single line connection diagram display processing means 33. It is judged whether or not the cycle switching flag 36 is set (step S92), and it is set. If so, the delay time is set to “short cycle”, for example, 1 second (step S93),
It is determined whether the internal cycle counter is a normal cycle counter, for example, 10 (step S95). If it is a normal cycle (YES), the process proceeds to step (S912) described later.

If it is not the normal cycle counter value (NO), the numerical information every cycle table 39 is input (step S96), and the numerical information set as "short cycle" in the numerical information every cycle table 39 is read from the current data area 32. Enter (Step S9
7) This is processed (step S98), displayed on the single line connection diagram display device 34 (step S99), and the internal cycle counter is incremented (step S910).

If it is the normal cycle counter value, or if the cycle switching flag 36 is not set, the delay time is set to the normal cycle (10 seconds) (S94), and then all the numerical information is input from the current data area 32. (Step S912), processing this (step S913), single line connection diagram display device 3
4 is displayed (step S914), and the internal cycle counter is set to an initial value, for example, 1 (step S915).

According to the above-described embodiment, during the period from the occurrence of the accident to the end of the accident processing, the cycle of processing the numerical information specified by the accident type and displaying it on the single line connection diagram display device 34 is changed to be short. As a result, it becomes possible to more surely grasp the change in the specific numerical information due to the occurrence of the accident than ever before.

FIG. 10 is a block diagram showing still another embodiment of the power system supervisory control device. 10, parts having the same functions as those in FIG. 17 are assigned the same reference numerals and explanations thereof will be omitted. The characteristic feature of this example is that the cycle switching flag 36,
The operation processing means 37, the numerical information period table 39, and the operating equipment numerical information table 40 are provided.

The above 36, 37, 39 are as described above, and the numerical information table for each operating equipment 40 is for specifying numerical information from the equipment to be operated,
For example, when a switch is operated, all the numerical information of the substation in which the switch to be operated is installed and the numerical information of the adjacent substation are specified.

FIG. 11 is a flow chart for explaining the processing of the operation processing means 37, which is performed after the selection processing (step S11).
1) and the cycle switching flag 36 is set (step S11
2) The numerical information corresponding to the operation is specified from the numerical information table for each operating equipment 40 (step S113), and the cycle of the equipment corresponding to the operation is set in the numerical information every cycle table 39 by "short cycle" (step S114). ). After the selective restoration process (step S116), the cycle switching flag 36 is reset (step S117), and the cycle of the equipment specified in the numerical information every cycle table 39 is returned to the "normal cycle" (step S11).
8).

According to the above embodiment, the numerical information of the power system equipment is changed from the start to the end of the operation, and the cycle of displaying specific numerical information corresponding to the operation and displaying it on the single-line connection diagram display device is shortened. It As a result, the operator can promptly grasp the change of the specific numerical information during the operation.

FIG. 12 is a block diagram showing still another embodiment of the power system monitoring and controlling apparatus. 12, parts having the same functions as those in FIG. 17 are assigned the same reference numerals and explanations thereof will be omitted. The characteristic features of this example are the accident detection and accident processing means.
35, cycle switching flag 36, numerical information every cycle table 3
9. The numerical information every cycle setting means 41 and the numerical information every cycle input screen 42 are provided.

The above-mentioned items 35, 36 and 39 are as already described. Further, 42 is a numerical information every cycle input screen for inputting arbitrary numerical information, 41 is a display cycle of the numerical information input from the numerical information every cycle input screen 42 is an input cycle, for example, "short cycle" or "normal cycle". Is a means for setting in the numerical information every cycle table 39.

According to the above embodiment, the period for processing arbitrary numerical information and displaying it on the single line connection diagram display device is changed to be shorter during the period from the occurrence of the accident to the end of the accident processing. As a result, it becomes possible to more surely grasp the change in arbitrary numerical information due to the occurrence of the accident than ever before. Further, the display cycle of the numerical information can be set arbitrarily.

FIG. 13 is a block diagram showing still another embodiment of the power system monitoring and controlling apparatus. 13, parts having the same functions as those in FIG. 12 are designated by the same reference numerals and the description thereof will be omitted. A feature of the configuration in this example is that the cycle of display on the display device is changed based on the numerical information belonging to the substation, as a difference from FIG.

Reference numeral 44 shown in FIG. 13 is a substation cycle input screen for inputting an arbitrary substation and a display cycle of all numerical information belonging to the substation, and 43 is a substation input cycle from the substation cycle input screen 44. It is a means for setting the display cycle of all numerical information belonging to a place in the numerical information every cycle table 39 by the input cycle, for example, "short cycle" or "normal cycle".

According to the present embodiment, the period for processing the numerical information belonging to an arbitrary substation and displaying it on the single line connection diagram display device is changed to be shorter during the period from the occurrence of the accident to the end of the accident processing. As a result, it becomes possible to more surely grasp the change in the numerical information belonging to any substation due to the occurrence of the accident, than ever before.

FIG. 14 is a block diagram showing still another embodiment of the power system monitoring and controlling apparatus. 14, parts having the same functions as those in FIG. 12 are assigned the same reference numerals and explanations thereof will be omitted. A characteristic feature of the present example is that, if it is shown as a difference from FIG. 12, the cycle of displaying on the display device is changed based on the numerical information related to arbitrary equipment.

Reference numeral 46 shown in FIG. 14 is an equipment-per-cycle input screen for inputting a display cycle of arbitrary equipment and numerical information related to the equipment from a plurality of substation equipments constituting the power system equipment, and 45 is equipment Numerical information about the equipment input from the every-cycle input screen 46, for example, in the case of the circuit breaker 203 of the transmission line power system, the display cycle of active power 201A, 201B and reactive power 202A, 202B at both ends is input cycle, for example, "short cycle Or “normal cycle” to set in the numerical information every cycle table 39.

According to the present embodiment, during the period from the occurrence of the accident to the end of the accident processing, the period for processing the specific numerical information corresponding to the arbitrary equipment and displaying it on the single line connection diagram display device is shortened. As a result, it becomes possible to more surely grasp the change in the specific numerical information corresponding to the arbitrary substation equipment due to the occurrence of the accident, than ever before.

FIG. 15 is a block diagram showing still another embodiment of the power system monitoring and controlling apparatus. In FIG. 15, the same functional parts as those in FIG. In this example, an input screen is used to set an arbitrary cycle. Therefore, the characteristic feature of the configuration is that the cycle setting table 47, the cycle setting means 48, and the cycle input screen 49 are provided.

Reference numeral 47 shown in FIG. 15 indicates the cycle as "high cycle",
Cycle setting table for changing to "medium cycle" or "low cycle", 49 is a cycle input screen for inputting the display cycle of numerical information, 48 is the cycle input table 49 and sets the cycle input in the cycle setting table 47 It is a means.

FIG. 16 is a flow chart for explaining the processing of the numerical information processing and single line connection diagram display processing means 33. It is judged whether or not the cycle switching flag 36 is set (step S162), and it is set. If so, the setting information is input from the cycle setting table 47 (step S
163), the delay time is set to "High cycle" according to the set cycle.
1 second (step S165), 5 seconds for "medium cycle" (step S166), 15 seconds for "low cycle" (step S167), and numerical information is input from the current data area 32. (Step S169), this is processed (step S1690) and displayed on the single line connection diagram display device 34 (step S1691).

According to the present embodiment, the period in which the numerical information is processed and displayed on the single line connection diagram display device 34 is changed to an arbitrary period during the period from the detection of the accident in the power system equipment 10 to the end of the accident processing. As a result, it becomes possible to more surely grasp the change in the numerical information of the active power 201 and the reactive power 202 which changes with the occurrence of the accident, than ever before.

[0050]

As described above, according to the present invention, the change in the numerical information of the active power and the reactive power which changes with the operation of the circuit breaker of the electric power system and the occurrence of the accident of the system equipment can be grasped more reliably than before. It becomes possible to do.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of a power system monitoring control device of the present invention.

FIG. 2 is a diagram showing an example of a single-line connection diagram.

FIG. 3 is a flowchart showing the processing contents of the accident detection and accident processing means of FIG.

FIG. 4 is a flowchart showing the processing contents of the numerical information processing / single line connection diagram display processing means of FIG.

FIG. 5 is a configuration diagram showing another embodiment of a power system monitoring control device.

FIG. 6 is a flowchart showing the processing contents of the operation processing means of FIG.

FIG. 7 is a configuration diagram showing still another embodiment of the power system monitoring control device of the present invention.

FIG. 8 is a flowchart showing the processing contents of the accident detection and accident processing means of FIG.

9 is a flowchart showing the processing contents of the numerical information processing / single line connection diagram display processing means of FIG. 7. FIG.

FIG. 10 is a configuration diagram showing still another embodiment of a power system monitoring control device of the present invention.

11 is a flowchart showing the processing contents of the operation processing means of FIG.

FIG. 12 is a configuration diagram showing still another embodiment of a power system monitoring control device of the present invention.

FIG. 13 is a configuration diagram showing still another embodiment of a power system monitoring control device of the present invention.

FIG. 14 is a configuration diagram showing still another embodiment of a power system monitoring control device of the present invention.

FIG. 15 is a configuration diagram showing still another embodiment of a power system monitoring control device of the present invention.

16 is a flowchart showing the processing contents of the numerical information processing / single line connection diagram display processing means of FIG. 15.

FIG. 17 is a diagram showing a conventional configuration.

FIG. 18 is a flowchart showing the processing contents of the numerical information processing / single line connection diagram display processing means of FIG.

[Explanation of symbols]

 10 Power system equipment 20 Information transmission device 21 Slave station 22 Master station 30 Power system monitoring and control device 31 Input processing means 32 Current data area 33 Numerical data processing, single line connection diagram display processing means 34 Single line connection diagram display device 35 Accident detection, accident Processing means 36 Cycle switching flag 37 Operation processing means 38 Numerical information table for each accident type 39 Numerical information every cycle table 40 Numerical information table for each operating equipment 41 Numerical information every cycle setting means 42 Numerical information every cycle input screen 43 Substation every cycle setting Means 44 Substation every cycle input screen 45 Equipment every cycle setting means 46 Equipment every cycle input screen 47 Cycle setting table 48 Cycle setting means 49 Cycle input screen

Claims (8)

[Claims] 1. Input processing means for inputting numerical information and status change information (hereinafter referred to as status change information) of individual equipment from equipment included in a power system via an information transmission device to a current data area, In the electric power system monitoring and control device having numerical information processing and single line connection diagram display processing means for processing the numerical information of the electric power system equipment currently stored in the data area to be displayed on the display device, detection of an accident in the electric power system equipment An electric power system monitoring and controlling apparatus comprising a cycle switching means for processing numerical information and shortening the cycle of displaying the numerical information on a single-line connection diagram display device from the time until the end of accident processing. 2. Input processing means for inputting numerical information and state change information of individual equipment from the equipment included in the power system via an information transmission device to the present data area, and the input processing means stored in the present data area. The period from the detection of an accident in the power system equipment to the end of the accident processing in a power system monitoring and control device having numerical information processing and single line connection diagram display processing means for processing the numerical information of the power system equipment to be displayed on the display device. A power system supervisory control characterized by including a cycle switching means for processing numerical information and shortening a cycle for displaying on a single-line connection diagram display device, and an operation processing means for operating power system equipment from the display screen. apparatus. 3. A numerical information table for each accident type for specifying numerical information according to the accident type, and a numerical information every period table for changing the period for each numerical information are added. The power system monitoring and control device described. 4. The electric power according to claim 2, further comprising: a numerical information per-period table for changing a period for each numerical information; and an operating-facility-specific numerical information table for specifying the numerical information from an operation target facility. System monitoring and control device. 5. A means for designating arbitrary numerical information from the numerical information of the electric power system equipment, and means for changing the display cycle of the display means based on the designated numerical information. The power system monitoring and controlling apparatus according to claim 1, which is characterized in that. 6. A means for designating an arbitrary substation out of a plurality of substation equipments constituting power system equipment, and a display cycle for display means based on numerical information belonging to the designated substation. The power system monitoring and controlling apparatus according to claim 1, further comprising: a changing unit. 7. A unit for designating an arbitrary facility from a plurality of substation facilities constituting a power system facility, and a display cycle for changing to a display unit based on numerical information belonging to the designated facility. The electric power system monitoring and controlling apparatus according to claim 1, further comprising: 8. A means for arbitrarily designating numerical information of a power system facility, and a means for changing the display cycle on the display means to a cycle designated by the means for arbitrarily designating based on the designated numerical information. The electric power system monitoring and controlling apparatus according to claim 1, further comprising: