JPH08140263A - Automatic operation mode changing device - Google Patents

Abstract

PURPOSE: To enable the operation mode of a computer to automatically change to a recover mode so as to support the quick recovery from failure. CONSTITUTION: The operation mode of a computer, which operates in the two operation modes of a simulation mode for analyzing the abnormality of a power system in off-line, and a recovery mode for performing the processing for supporting the recovery from failure of the abnormal system of the power system, is made to automatically transit. For its sake, an information transmission means 12 takes in the on-line information of the power system, and based on the on-line information taken in, this detects the abnormality of the power system. And, if this detects the abnormality of the power system, this judges the operation mode of the computer, and if it is other than the recovery mode, this issues a mode change request to a mode managing means 107, and changes the operation mode of the computer over to the recovery mode.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention automatically sets the operation mode of a computer in order to provide quick recovery support for an accident or the like when an accident or abnormality occurs in the power system during a simulation for analyzing an abnormality of the power system. The present invention relates to an automatic operation mode transition device that transits to a recovery mode.

[0002]

2. Description of the Related Art Conventionally, when changing equipment of a power system, a power supply plan is prepared in advance on a computer, and online data is taken from the power system to the computer to perform a simulation based on the power supply plan. . Such a computer not only performs a power supply simulation, but also performs a simulation for analysis / verification of an accident / abnormality based on abnormal state data acquired from a power system.

FIG. 14 shows functional blocks of a stand-alone computer having a planning mode for handling online data of the power system and an analysis mode for analyzing an abnormal situation. In this computer, the information transmission device 1
The online information sent via 01-1, 101-2 is received by the information transmission means 102, and the intermediate file 16
Save to 1. The monitoring means 162 uses the intermediate file 161.
Regularly fetch the online information saved in to check the power system for abnormalities. The online information of the power system is sequentially stored in the online data file 163 from the monitoring means 162. Further, when the monitoring means 162 detects an abnormality, a message to that effect is displayed on the CRT screen 16 of the display device.
7 and output from the printer as a form 168,
Further, the abnormal data is saved in the save data file 169.

In such a computer, the planning means 164 executes a power supply plan associated with a change in facilities of the power system. The planning means 164 uses the online data file 16
The online data is taken in from 3 and the power supply simulation is executed based on the power supply plan. On the other hand, the analysis / verification means 16 is used for the simulation of analysis and verification of abnormal data.
6 is executed. Conventionally, the analysis / verification means 166 has taken abnormal data from the saved data file 169 and analyzed and verified it to judge the recovery procedure or the like by a human system.

By the way, in the computer described above, the operation in the planning mode by the planning means 164 and the analysis / verification means 16
Mode switching means 1 for operation in analysis / verification mode according to 6
Switching via 65. For example, when the monitoring unit 164 detects a data abnormality and outputs a warning on the CRT screen 167 when the computer is operating in the planning mode, the computer is operated via a human system for analysis / verification of the abnormality state. It is necessary to switch the operation mode of from the planning mode to the analysis / verification mode.

[0006] Therefore, the operator has to manually switch the operation mode in a tense situation due to the occurrence of an abnormality, which imposes a heavy burden on the operator and until the mode of the computer is changed to start the analysis. It took a considerable amount of time.

[0007]

As described above, the operation modes of the computer are the plan mode using online information and the mode for analyzing the accident / abnormal condition of the power system, and the data files handled by each are different. Was there.
Moreover, when an abnormality in the power system is detected, it is necessary to change the operation mode of the computer without increasing the load on the computer and start the analysis quickly. Therefore, the operation mode of the computer must be changed through the human system, which not only makes the operator's burden heavy but also reduces the work efficiency for analyzing the accident / abnormal situation. .

According to the present invention, in the case of an accident / abnormal state occurring in the power system during the execution of the simulation, the computer is operated so that quick recovery support is provided in order to minimize the supply disruption to the abnormal system. It is an object of the present invention to provide an operation mode automatic transition device that enables automatic transition of a mode to a recovery mode.

[0009]

The present invention has taken the following means in order to achieve the above object. The present invention corresponding to claim 1 is a computer that operates in at least two operation modes, that is, a simulation mode that analyzes various conditions of an electric power system offline and a recovery mode that performs processing for supporting recovery of an abnormal electric power system system. And a mode management unit that manages the operation mode of the computer and switches the operation mode of the computer to a recovery mode when there is a mode transition request, an information transmission unit that takes in online information of the power system, and the information transmission unit. System abnormality detecting means for detecting abnormality of the power system based on the online information taken in from, and when abnormality of the power system is detected by the system abnormality detecting means, the operating mode of the computer is judged and the mode other than the recovery mode is determined. If so, it is configured to include a scheduler unit that issues a mode transition request to the mode management unit.

The present invention corresponding to claim 2 has at least two operation modes, that is, a simulation mode for analyzing various conditions of the power system off-line and a recovery mode for performing a process for assisting recovery of a frequency abnormality of the power system. A computer that operates, a mode management unit that manages the operation mode of the computer and switches the operation mode of the computer to a recovery mode when there is a mode transition request, an information transmission unit that captures online information of the power system, and A frequency abnormality detecting means for detecting a frequency abnormality of the power system based on the online information taken from the information transmitting means, and an operating mode of the computer when the frequency abnormality of the power system is detected by the frequency abnormality detecting means. A scheduler that issues a mode transition request to the mode management means if the mode is other than the recovery mode It was configured to and a stage.

The present invention corresponding to claim 3 is a computer which operates in at least two operation modes, that is, a simulation mode for analyzing various conditions of an electric power system offline and a recovery mode for performing a process for supporting recovery of an independent system. When,
A mode management unit that manages the operation mode of the computer and switches the operation mode of the computer to a recovery mode when there is a mode transition request, an information transmission unit that captures online information of the power system, and captures from the information transmission unit System creating means for creating a degenerate system by contracting the power system based on the generated online information, a single system detecting means for detecting a single system from the degenerate system created by the system creating means, and the single system detecting means When a single system is detected in step 1, the operation mode of the computer is judged, and if it is other than the recovery mode, a scheduler means for issuing a mode transition request to the mode management means is provided.

The present invention corresponding to claim 4 operates in at least two operation modes, that is, a simulation mode for analyzing various conditions of the power system offline and a recovery mode for performing a process for supporting recovery of the overload system. A computer, a mode management unit that manages the operation mode of the computer and switches the operation mode of the computer to a recovery mode when there is a mode transition request, an information transmission unit that captures online information of the power system, and the information transmission. Overload detection means for detecting an overload of a branch of a power transmission line, a transformer, etc. in the electric power system based on online information taken in from the means, and when the overload detection of the branch is detected by the overload detection means, The operation mode of the computer is judged, and if it is other than the recovery mode, a schedule for issuing a mode transition request to the mode management means It has a configuration comprising a Yura means.

The present invention corresponding to claim 5 operates in at least two operation modes, that is, a simulation mode for analyzing various conditions of the power system offline and a recovery mode for performing a process for supporting recovery of the abnormal voltage system. A computer, a mode management unit that manages the operation mode of the computer and switches the operation mode of the computer to a recovery mode when there is a mode transition request, an information transmission unit that captures online information of the power system, and the information transmission. Voltage abnormality detecting means for detecting a system with an abnormal voltage based on the online information taken from the means, and when the voltage abnormality detecting means detects a voltage abnormality, the operating mode of the computer is judged and the operation mode is other than the recovery mode. For example, it is configured to include a scheduler unit that issues a mode transition request to the mode management unit.

[0014]

The present invention has the following effects by taking the above measures. According to the present invention corresponding to claim 1, while the simulation means for analyzing the abnormality of the electric power system is being executed, the information transmission means determines the information of the electric power system from the information transmission device installed at each electric station. The power system abnormality detecting means is executed to detect the abnormality of the power system at the same time as taking in the cycle. As a result, when a voltage abnormality or the like to be analyzed has occurred in the power system, the scheduler means grasps the state of whether or not the simulation is being executed, and the mode management means for interrupting the simulation means and providing quick recovery support. Automatically switches the computer operation mode from simulation mode to recovery mode.

According to the present invention corresponding to claim 2, while the simulation means for analyzing the abnormality of the power system is being executed, the information transmission means, for example, the frequency online from the information transmission device installed at each electric station. Information is taken in at regular intervals, and frequency abnormality detecting means is executed to detect frequency abnormality. As a result, when an abnormal state to be analyzed occurs in the frequency of the power system, the scheduler means grasps the state of whether or not the simulation is being executed, and the mode is managed so that the simulation means can be interrupted and quick recovery support can be performed. The means automatically changes the operation mode of the computer from the simulation mode to the recovery mode.

According to the present invention corresponding to claim 3, while the simulation means for analyzing the abnormality of the power system is being executed, the information transmission means is an online switch from the information transmission device installed at each electric station. When the information is changed, the system creating means for creating a contracted system is activated. After creating the contracted system, the system creating means executes the independent system detecting means to detect the independent system. As a result, when a single system to be analyzed is generated in the power system, the mode management means is used to grasp the state of whether the simulation is being executed by the scheduler means and to suspend the simulation means and provide quick recovery support. Automatically switches the computer operation mode from the simulation mode to the recovery mode.

According to the present invention corresponding to claim 4, while the simulation means for analyzing the condition of the power system is being executed, the information transmission means is connected to the transmission line and the transformer from the information transmission device installed at each electric station. The information of the device, for example, the active power value, is fetched by the information transmission means in a fixed cycle and the overload detection means is executed to detect the overload. As a result, when an overload condition to be analyzed occurs in the transmission line or transformer of the electric power system, the scheduler means grasps the status of whether the simulation is being executed, and the interruption of the simulation means and quick recovery support are provided. To do so, the mode management means automatically transitions the operating mode of the computer from the simulation mode to the recovery mode.

According to the present invention corresponding to claim 5, the information transmitting device is installed in each electric station while the information transmitting means is installed while the simulating means for analyzing an event occurring or expected in the power system is being executed. For example, a bus voltage is taken in as a voltage in a constant cycle, and a voltage abnormality detecting means is executed to detect a voltage abnormality. As a result, if a voltage abnormality to be analyzed occurs in the bus of the power system, the scheduler means grasps the state of whether or not the simulation is being executed,
In order to suspend the simulation means and provide quick recovery support, the mode management means automatically changes the operation mode of the computer from the simulation mode to the recovery mode.

[0019]

Embodiments of the present invention will be described below. FIG. 1 shows a functional block of an operation mode automatic transition device of a power calculator according to a first embodiment of the present invention. The parts having the same functions as those of the computer shown in FIG. 14 are designated by the same reference numerals.

The operation mode automatic transition device of the present embodiment stores the online frequency information of the power system in the frequency data file 111 via the information transmission means 102, and the online frequency information stored in this frequency data file 111 is changed to the frequency. The abnormality detecting means 112 monitors the presence or absence of data abnormality by comparing with the frequency allowable value. The frequency allowable value is stored in advance in the frequency allowable data file 113 and is output in response to a request from the frequency abnormality detecting means 112.

The mode anomaly detecting means 112 activates the mode scheduler 104. Mode scheduler 104
Is a computer planning means 105-1, a simulation means 105-2, a recovery guidance creating means 1 based on the mode registered in the mode management data file 103.
Control start-up and interruption of 05-3.

Here, the planning means 105-1 creates various plans including a power supply plan, takes in online information of the power system from an online data file (not shown),
This is a functional block for executing a simulation based on the created plan, and operates when the plan mode is registered in the mode management data file 103.
The simulation unit 105-2 is a functional block that performs simulation such as analysis / verification of accidents / abnormalities based on the abnormal data captured when an abnormality occurs, and when the simulation mode is registered in the mode management data file 103. Operate. The planning mode is included in the simulation mode in a broad sense. The recovery guidance creating unit 105-3 is a functional block that creates a recovery guidance that analyzes the abnormal data and instructs a recovery procedure for the frequency abnormality, and when the recovery mode is registered in the mode management data file 103. Operate.

The registration mode of the mode management data file 103 is rewritten by the mode management means 107, and the mode management means 107 receives a mode transition request from the mode scheduler means 104 via the mode transition request queue 106.

Next, the operation of the present embodiment configured as described above will be described. After the information transmitting means 102 fetches online frequency information of the power system from the information transmitting device 101 installed at each electric station in a fixed cycle and arranges each data suitable for the system, the frequency data file 11 is edited.
Save to 1. In addition, the information transmission means 102, when the storage of the online frequency information in the frequency data file 111 is completed, executes the frequency abnormality detection means 112 to detect whether or not a frequency abnormality has occurred in the power system.

FIG. 2 is a flow chart showing the processing contents of the frequency abnormality detecting means 112. When activated by the information transmission means 102, the frequency abnormality detection means 112 reads frequency information from the frequency data file 111 (step S1), and further reads the frequency permissible value from the frequency permissible data file 113 (step S2).

Next, it is determined from the frequency information read in steps S1 and S2 described above whether or not a frequency abnormality has occurred on the power system (step S3). If the online frequency is out of the allowable range, it is determined that there is a frequency abnormality, and the mode scheduler means 104 is activated (step S4).

FIG. 3 is a flowchart showing the processing contents of the mode scheduler means 104. When started by the frequency abnormality detecting means 112, the mode scheduler means 104 reads the operation mode of the computer from the mode management data file 103 (step T1). Then, it is determined whether or not the current operation mode of the read computer is the simulation mode indicating that the simulation is being executed (step T2).

From the determination in the processing of step T2, if the computer operation mode is the simulation mode,
Simulation means 105 during simulation execution
-2 is suspended (step T3), and the mode transition request is issued to the mode management means 107 via the mode transition request queue 106.
(Step T4).

In the processing of step T2,
When it is determined that the operation mode of the computer is other than the simulation mode, it is determined whether it is the planning mode (step T5). Planning means 105 if in planning mode
The process of -1 is interrupted (step T6), and the mode transition request is issued to the mode management means 107 via the mode transition request queue 106 (step T4).

FIG. 4 is a flowchart showing the processing contents of the mode management means 107. Mode management means 107
When a mode transition request is input to the mode transition request queue 106, the operation mode of the computer is transited from the simulation mode or the planning mode to the recovery mode (step Q1). Then, after the mode transition ends, the contents of the mode management data file 103 are updated to data indicating that the simulation mode or the planning mode transits to the recovery mode (step Q2).

As described above, according to the present embodiment, when the frequency abnormality of the power system is detected, the mode scheduler means 104
Judges the current operation mode by referring to the mode management data file 103, and if it is not the recovery mode, interrupts the current operation mode and issues a mode transition request to the mode management means 107 to transit to the recovery mode. Therefore, the mode switching by the human system can be eliminated, and the transition from the detection of the frequency abnormality to the operation mode for the cause analysis can be performed in an extremely short time.

According to the present embodiment, the recovery guidance creating means 105-3 is activated in the recovery mode in which the automatic transition is made in a short time as described above, and the guidance information for instructing the recovery procedure is created. Not only can mode switching work be reduced, but processes from abnormality analysis to system restoration can also be automated, enabling rapid response to power system accidents and abnormalities.

Next, a second embodiment of the present invention will be described. FIG. 5 is a diagram showing the functional blocks of the automatic mode transition apparatus of the computer according to the second embodiment. Incidentally, the above-mentioned first
The parts having the same functions as those in the embodiment are designated by the same reference numerals.

In this embodiment, the online switch information is used as the online information of the power system, and the switch data file 12 is used.
1, the system creating means 122 creates a degenerate system from the switch information, stores the degenerate system in the current system data file 123, and the single system detecting means 124 detects the occurrence of the single system from the degenerate system. To do. Then, the mode transition process is executed when the occurrence of the independent system is detected. The restoration guidance creating means 105-3 is composed of a function book for performing analysis and guidance regarding restoration support of a single system.

Next, the operation of this embodiment configured as described above will be described. The information transmission means 102 takes in the online switch information of the power system from the information transmission device 101 installed at each electric station at the time of a state change and arranges the switch data suitable for the system to edit the switch data file 12
Save to 1. Further, the information transmitting means 102 activates the system creating means 122 in order to create the degenerate system when the storage in the switch data file 121 is completed.

FIG. 6 is a flowchart showing the processing contents of the system creating means 122. The system creating means 122 is the information transmitting means 1 that has taken in the online switchgear information.
When started from 02, the switch information representing the switch state on the power system is read from the switch data file 121 (step S1). A degenerate system is created from the read connection state of the switches in the power system (step S2). The created degenerate system is stored in the current system data file 123 (step S3), and the independent system detecting means 12 is used to determine whether or not an independent system has occurred.
4 is executed (step S4).

The processing contents of the independent system detecting means 124 are shown in FIG.
This will be described with reference to the flowchart shown in. When the independent system detecting means 124 is activated by the system creating means 122, the degenerate system is read from the current system data file 123 (step T1). Then, in order to determine whether or not there is an independent system, it is determined whether or not there is a load in an arbitrary network connected by a switch (step T
2). If there is no load in the network, it is continuously determined whether or not a generator is present in the network (step T3). When it is determined in the process of step T3 that the generator does not exist, it is determined that the independent system is generated, and the mode scheduler means 10
4 is activated (step T4).

The mode scheduler means 104 activated in this way executes the processing based on the above-mentioned flowchart of FIG. 3 to judge the operation mode of the computer from the mode management data file 103, and selects a mode other than the recovery mode. If there is, a mode transition request for transitioning from the simulation mode or the planning mode to the recovery mode is issued to the mode management means 107. Then, the mode management unit 107, which receives the mode transition request from the mode scheduler unit 104 via the mode transition request queue 106, transitions the operation mode of the computer to the recovery mode. After the mode transition ends, the contents of the mode management data file 103 are updated to data indicating that the simulation mode or the planning mode transits to the recovery mode.

As described above, according to this embodiment, the degeneration system is created by taking in the online switch information of the power system,
If a single system is detected from the degenerate system, the mode is automatically switched to the recovery mode, so
In the unfavorable situation where the power system has an independent system, it is possible to quickly switch the mode of the computer for cause analysis without intervening human mode switching, and automatically the independent system It is possible to create a guidance for a recovery procedure to solve the problem.

Next, a third embodiment of the present invention will be described. FIG. 8: is a figure which shows the functional block of the mode automatic transition apparatus of the electric power computer which concerns on 3rd Example. The parts having the same functions as those in the first embodiment described above are designated by the same reference numerals.

In this embodiment, the transmission line data file 131 is obtained by taking in the active power values of the transmission line of the electric power system and the transformer.
The data is stored in the transformer data files 132, and the overload detection unit 133 compares the active power value with the allowable value of the transmission line and the allowable value of the transformer to detect the overload of the power system. Then, the mode scheduler means 104 is activated in accordance with the overload detection of the overload detection means 133. The restoration guidance creating means 105-3 is a functional block that creates an analysis and guidance for restoring the power system from an overload.

In the present embodiment configured as described above, the information transmission means 102 sets the active power values of the power transmission line and the transformer of the power system to the information transmission device 101 installed at each electric station in a fixed cycle. Power line data file 131, transformer data file 13
Store in 2 respectively. Further, when the information transmission means 102 finishes storing the data files, the information transmission means 102 activates the overload detection means 133 in order to detect whether or not an overload has occurred in the power system.

The processing contents of the overload detection means 133 will be described with reference to the flowchart of FIG. Overload detection means 13
3 is read from the power transmission line data file 131 and the transformer data file 132, respectively, when activated by the information transmission means 102 (step S
1), transmission line / transformer allowable value data is transmitted line allowable data file 134 and transformer allowable data file 13
5 is read (step S2).

Next, the power transmission line /
The measured value of the active power of the transformer is compared with the setting allowable value data, and it is determined based on the following equation whether or not an overload has occurred in the power system (step S3).

Active power value of transmission line / transformer> Allowable value When it is determined in the process of step S3 that an overload has occurred, the operation mode of the computer is changed from the simulation mode or the planning mode to the recovery mode. To do so, the mode scheduler means 104 is executed.

The processing contents of the mode scheduler means 104 and the mode management means 107 are the same as in the first embodiment described above. That is, the current operation mode of the computer is determined from the mode management data file 103, and if it is a mode other than the recovery mode, a mode transition request for making a transition from the current operation mode to the recovery mode is issued to the mode management means 107. Upon receiving the mode transition request, the mode management means 107 transitions the operation mode of the computer to the recovery mode.

According to the present embodiment as described above, when the overload of the power system is detected, the mode of the computer can be rapidly changed for the cause analysis. Next, a fourth embodiment of the present invention will be described.

FIG. 10 is a diagram showing the functional blocks of the automatic mode transition apparatus of the computer according to the fourth embodiment. The parts having the same functions as those in the first embodiment described above are designated by the same reference numerals.

In this embodiment, the bus voltage data of the power system is stored in the bus voltage data file 141, and the voltage abnormality detecting means 142 reads the bus voltage data of the bus voltage data file 141 and the bus rated value data file 143. The voltage tolerance is compared to detect whether or not a voltage abnormality has occurred in the power system. Then, when a voltage abnormality occurs in the power system, the mode scheduler means 104
Also, the mode management means 107 is adapted to make a mode transition to the recovery mode. Recovery guidance creating means 105-3
Is composed of functional blocks that perform analysis and guidance for recovering the power system from voltage abnormalities of the bus voltage.

In this embodiment, the information transmission means 102
Takes in the bus voltage information of the electric power system from the information transmission device 101 installed at each electric station at the time of a situation change, edits the bus voltage list suitable for the system, and edits the bus voltage data file 14
Save to 1. In addition, the information transmission unit 102 executes the voltage abnormality detection unit 142 in order to detect whether or not a voltage abnormality has occurred in the power system when the storage in the bus voltage data file 141 is completed.

FIG. 11 is a flow chart showing the processing contents of the voltage abnormality detecting means 142. Voltage abnormality detecting means 14
2 reads the bus voltage information from the bus voltage data file 141 (step S1) and reads the bus allowable value data from the voltage allowable data file 143 (step S2).

The measured bus voltage value thus read is compared with the allowable bus voltage value, and it is determined based on the following equation whether or not a voltage abnormality has occurred in the bus voltage (step S3).

Bus voltage value> bus voltage allowable value When it is determined in the process of step S3 that a voltage abnormality has occurred, the mode scheduler means 104 is executed so that a quick analysis can be performed for the voltage abnormality. (Step S4).

The processing contents of the mode scheduler means 104 and the mode management means 107 are the same as in the first embodiment described above. As described above, according to the present embodiment, when the voltage abnormality of the bus voltage of the power system is detected, the mode of the computer can be rapidly changed for the cause analysis.

Next, a fifth embodiment of the present invention will be described. FIG. 12 is a diagram showing functional blocks of the automatic mode transition apparatus of the power calculator according to the fifth embodiment.

In this embodiment, arbitrary power system information necessary for detecting an abnormality in the power system is stored in the power system data file 151 via the information transmission means 102, and the power system allowable data corresponding to the power system information is stored. It is stored in the power system allowable data file 153. Then, the power system abnormality detecting means 152 compares the power system information actually taken online from the power system with the power system allowable data read from the power system allowable data file 153 to detect an abnormality in the power system, and detects the mode scheduler 104 and The mode management means 107 is configured to execute a mode transition to the recovery mode.

In this embodiment, information on the electric power system is transmitted from the information transmission device 101 installed at each electric station to the information transmission means 1.
When the status changes to 02, it is taken in at regular intervals. The power system information taken in from the information transmitting means 102 is arranged and edited according to the system, and the power system information data file 151.
Stored in. Further, when the information transmission means 102 finishes saving in the power system data file 151, the power system abnormality detection means 152 is executed to detect whether or not there is an abnormality in the power system to be analyzed.

FIG. 13 shows a flowchart of the processing contents of the power system abnormality detecting means 152. When the power system abnormality detecting means 152 starts execution, the power system information is read from the power system file data file 151 (step S1), and the power system allowable data is read from the power system allowable data file 153 (step S2).

Next, it is determined whether or not an abnormal state to be analyzed has occurred by using the power system information and the allowable data (step S3). If the result of the determination is that an abnormality has occurred in the power system, the mode scheduler means 104 is executed so that quick analysis can be performed for the abnormal state (step S4).

The processing contents of the mode scheduler means 104 and the mode management means 107 are the same as in the first embodiment described above. As described above, according to the present embodiment, when the abnormality of the power system is detected, the mode of the computer can be quickly changed to the recovery mode for the cause analysis. The present invention is not limited to the above embodiments, and various modifications can be made without departing from the gist of the present invention.

[0061]

As described above in detail, according to the present invention, in the case of an accident / abnormal condition in the power system during the execution of the simulation, it is possible to quickly perform the operation in order to minimize the supply trouble to the abnormal system. So that recovery assistance can be provided
It is possible to provide an operation mode automatic transition device that enables automatic transition of the operation mode of a computer.

[Brief description of drawings]

FIG. 1 is a functional block diagram of an operation mode automatic transition device according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing processing up to scheduler activation in the operation mode automatic transition device of the first embodiment.

FIG. 3 is a flowchart showing the processing contents of a scheduler in the operation mode automatic transition device of the first embodiment.

FIG. 4 is a flowchart showing the processing contents of a mode management means in the operation mode automatic transition device of the first embodiment.

FIG. 5 is a functional block diagram of an operation mode automatic transition device according to a second embodiment of the present invention.

FIG. 6 is a flowchart showing the first half of the process until the scheduler is activated in the operation mode automatic transition device of the second embodiment.

FIG. 7 is a flowchart showing the latter half of the process until the scheduler is activated in the operation mode automatic transition device of the second embodiment.

FIG. 8 is a functional block diagram of an operation mode automatic transition device according to a third embodiment of the present invention.

FIG. 9 is a flowchart showing processing up to scheduler activation in the operation mode automatic transition device of the third embodiment.

FIG. 10 is a functional block diagram of an operation mode automatic transition device according to a fourth embodiment of the present invention.

FIG. 11 is a flowchart showing processing up to scheduler activation in the operation mode automatic transition device of the fourth embodiment.

FIG. 12 is a functional block diagram of an operation mode automatic transition device according to a fifth embodiment of the present invention.

FIG. 13 is a flowchart showing processing up to scheduler activation in the operation mode automatic transition device of the fifth embodiment.

FIG. 14 is a functional block diagram of a conventional power system support system.

[Explanation of symbols]

101 ... Information transmission device, 102 ... Information transmission means, 103
... mode management data file, 104 ... mode scheduler, 105-1 ... planning means, 105-2 ... simulation means, 105-3 ... restoration guidance creating means, 1
07 ... Mode management means, 111 ... Frequency data file, 112 ... Frequency abnormality detection means, 121 ... Switch data file, 122 ... System creation means, 124 ... Single system detection means, 133 ... Overload detection means, 142 ... Voltage abnormality Detection means.

Claims (5)

[Claims] 1. At least two of a simulation mode for analyzing various conditions of an electric power system offline and a recovery mode for performing processing for supporting recovery of an abnormal electric power system.
A computer that operates in one operation mode, a mode management means that manages the operation mode of the computer and switches the operation mode of the computer to a recovery mode when there is a mode transition request, and information transmission that captures online information of the power system Means, a system abnormality detection means for detecting abnormality of the power system based on online information taken from the information transmission means, and an operation mode of the computer when abnormality of the power system is detected by the system abnormality detection means And a scheduler means for issuing a mode transition request to the mode management means if the mode is other than the recovery mode. 2. A computer that operates in at least two operation modes: a simulation mode that analyzes various conditions of the power system offline and a recovery mode that performs processing to support recovery of a frequency abnormality in the power system; A mode management unit that manages the operation mode and switches the operation mode of the computer to the recovery mode when there is a mode transition request, an information transmission unit that takes in online information of the power system, and an online that is taken in from the information transmission unit. A frequency abnormality detecting means for detecting a frequency abnormality of the power system based on information, and when the frequency abnormality of the power system is detected by the frequency abnormality detecting means, the operating mode of the computer is determined and if it is other than a recovery mode, It has a scheduler means for issuing a mode transition request to the mode management means. Operation mode automatic transition system to. 3. A computer that operates in at least two operation modes: a simulation mode that analyzes various conditions of an electric power system offline and a recovery mode that performs processing for supporting recovery of an independent power system, and an operation mode of the computer. Based on the online information fetched from the information transmission means, a mode management means for switching the operation mode of the computer to a recovery mode when there is a management request and a mode transition request, an information transmission means for taking online information of the power system System generating means for reducing the power system to create a degenerate system, a single system detecting means for detecting a single system from the degenerate system created by the system creating means, and a single system is detected by the single system detecting means. Then, the operation mode of the computer is judged, and if the mode is other than the recovery mode, the mode is changed to the mode management means. Operation mode automatic transition apparatus characterized by comprising a scheduler unit that issues a request. 4. A computer that operates in at least two operation modes: a simulation mode that analyzes various conditions of the power system offline and a recovery mode that performs processing for assisting recovery of the overload system, and an operation mode of the computer. Mode management means for switching the operation mode of the computer to the recovery mode when there is a mode transition request, information transmission means for capturing online information of the power system, and online information captured from the information transmission means. An overload detection unit that detects an overload of a branch such as a transmission line and a transformer in the electric power system based on the above, and an operation mode of the computer is determined and restored when an overload of the branch is detected by the overload detection unit. If the mode is other than the mode, a scheduler means for issuing a mode transition request to the mode management means is provided. Operation mode automatic transition device comprising and. 5. A computer that operates in at least two operation modes, a simulation mode that analyzes various conditions of the power system offline and a recovery mode that performs processing for assisting recovery of the abnormal voltage system, and an operation mode of the computer. Mode management means for switching the operation mode of the computer to the recovery mode when there is a mode transition request, information transmission means for capturing online information of the power system, and online information captured from the information transmission means. A voltage abnormality detecting means for detecting a system in which the voltage is abnormal based on the voltage abnormality detecting means determines the operation mode of the computer when a voltage abnormality is detected by the voltage abnormality detecting means, and if it is other than a recovery mode, the mode managing means An operation mode automatic transition device, comprising: a scheduler means for issuing a mode transition request.