JPH08317559A - Training simulator for power system operation - Google Patents

Abstract

PURPOSE: To cope with a difficult solution of optimum tidal current calculation by conducting optimum tidal current calculation in a training system preparation and automatic adjustment means, supporting the adjustment of the initial system condition, and forming a limit relief means. CONSTITUTION: For the additional preparation of a training system, a teacher starts a system data taking-in means 3 through a man-machine device 1 for teacher to take in necessary data. After the completion of setting the initial system data, the teacher starts a training system and automatic adjustment means 12 through the man-machine device 1. The training system and automatic adjustment means 12 conducts optimum tidal current calculation and the automatic adjustment of voltage adjustment apparatus and generator outputs so that the voltage and tidal current conditions in a power system may meet the constraint the teacher has set. It is thus possible to facilitate setting of the initial system condition, enrich setting of trouble data and conduct efficient comparison after training.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power system operation training simulator for simulating the response of a power system and for training trainees for system operation.

[0002]

2. Description of the Related Art An outline of a power system operation training simulator will be briefly described. The power system operation training simulator is intended for the training of operators who monitor and control the power system at the power supply command center and the general control center. The instructor creates initial system data, accident information, etc. via the instructor man-machine device.

Further, when the power system operation training simulator is linked to the operation system, the data necessary for the initial system creation is taken in from the operation system by the system data acquisition means according to the instruction of the instructor, and the instructor uses the acquired data. Based on this, the initial system is created.

When the training is started, the trainee monitors and controls the system through the trainee man-machine device, and issues a command through a telephone or the like. The instructor follows the instructions of the trainee and operates on behalf of the local side. By each means of the power system operation training simulator, the response of the power system to the trainee, the instructor and the set accident is simulated.

As described above, the power system operation training simulator creates a situation in which the trainee is monitoring and controlling in the actual system. After the training, the state of the system being trained is reproduced and displayed in order to evaluate the training contents of the trainee.

The conventional method will be described below with reference to FIG. FIG. 9 is a functional block diagram showing the configuration of a conventional power system operation training simulator. 1 is a man-machine device for instructors, 2 is a man-machine device for trainees, 3 is system data acquisition means, 4 is training system creation / adjustment means, 5 is initial system data storage area, 6 is system simulation monitoring / control means , 7 is a simulator data storage area, 8 is a power system response simulation means, 9 is a reproduction data storage means, 10 is a reproduction data storage area, and 11 is a training reproduction means.

Whether the instructor newly creates initial system data for training or accident information via the instructor man-machine device 1,
Alternatively, the initial system data already stored in the initial system data storage area 5 can be stored in the simulator data storage area 7
Restore to. The initial grid data includes load power, generator output, switch open / close status, etc. necessary to simulate the response of the power grid.

Further, when a new initial system is created, if the power system operation training simulator is linked to the operating system, the system data fetching means 3 is started via the instructor man-machine device 1. The system data fetching means 3 fetches data for creating an initial system from the operational system and stores it in the initial system data storage area 5.

The instructor activates the training system creating / adjusting means 4 via the instructor man-machine device 1 as necessary to adjust the initial system data. The adjusted initial system data can also be stored in the initial system data storage area 5 by the training system creating / adjusting means 4.

Before starting the training, the instructor sets the time to start the storage of the reproduction data through the instructor man-machine device 1 for the reproduction after the training, the end time, and the data storage cycle. . When starting the training, the instructor notifies the system simulation monitoring / control means 6 of the start of the training via the instructor man-machine device 1.

The system simulation monitoring / control means 6 cyclically activates the power system response simulation means 8 and the reproduction data storage means 9 until receiving the training end notification from the instructor man-machine device 1. . The power system response simulation means 8 creates connection information of each facility in the power system based on the switching states of the switches stored in the simulator data storage area 7, and the connection information and data such as load power and generator output. Is used to simulate fluctuations in frequency, voltage, power flow, etc. within the system.

Further, the power system response simulation means 8 causes an accident in accordance with the accident information set by the instructor at the time of occurrence of the accident, and the main of the transmission line installed to prevent the spread of the accident. Simulate the operation of protection, backup protection relay, busbar protection relay, etc. Also, the operation of the frequency relay, over / undervoltage relay, etc. is simulated based on the frequency, voltage, and power flow value.

The power system response simulation means 8 stores the above simulation result in the simulator data storage area 7. The contents saved in the simulator data saving area 7 are displayed via the instructor man-machine device 1. The instructor confirms the current system status via the instructor man-machine device 1.

Further, the reproduction data storage means 9 takes out the simulation result of the power system response simulation means 8 stored in the simulator data storage area 7, adds the time and stores it in the reproduction data storage area 10. The trainee monitors the state of the power system through the trainee man-machine device 2.

The trainee controls the output of the generator and the voltage through the man-machine device 2 for trainee while monitoring the state of the power system. This control content is reflected in the simulator data storage area 7 and taken into the power system response simulation means 8. In addition, when an accident occurs, an operation of opening or closing the switch is performed through the man-machine device 2 for trainees, and the location of the power failure caused by the accident is restored.

Further, using a telephone or the like, a command is issued to the instructor (in this case, the instructor is acting on behalf of the local person). According to instructions from the trainee, the instructor adjusts the output of the power generator on the local side, turns on / off the switch, etc. through the instructor man-machine device 1. The simulation of the reaction of the power system to the operation of the instructor is performed in the same manner as the trainee.

When ending the training, the instructor gives an instruction to end the training through the man-machine device 1 for the instructor. Upon receiving the notification of the end of the training, the system simulation monitoring / control means 6 stops the activation of the power system response simulation means 8 and the reproduction data storage means 9. After the training is completed, the instructor sets the reproduction start time, the reproduction start time, the reproduction end time, and the reproduction cycle through the instructor man-machine device 1 in order to confirm the operation content of the trainee.

When the reproduction is started, the training reproduction is set from the instructor man-machine device 1 and the system simulation monitoring / control means 6 is started. The system simulation monitoring / control means 6 activates the training reproducing means 11. The training reproducing means 11 searches the time information of the data stored in the reproduction data storage area 10, and retrieves the data when the reproduction start time specified by the instructor is searched,
Write to the simulator data storage area 7.

Thereafter, the training reproducing means 11 similarly reproduces the data storage area 10 for reproduction until the end time of the time zone designated by the instructor.
The data saved in is taken out at regular intervals and written in the simulator data saving area 7. The information written in the simulator data storage area 7 is displayed via the instructor man-machine device 1 and the trainee man-machine device 2.

[0020]

The above-mentioned power system operation training simulator has the following points to be improved. (B) In order to carry out training, it is necessary to create an initial system state for training. Conventionally, this initial system was created based on the data acquired by the instructor from the operational system, or via a completely new man-machine device. I was adjusting.

When creating the initial system state, first, the connection state of the system is determined. The system connection status is set by the instructor changing the switch status via the man-machine device. After setting the connection state of the grid, the voltage regulator, load power, and generator output were adjusted, and then the initial state of voltage and power flow was created by executing power flow calculation.

When the voltage is abnormal in the initial state of the system, overload (when the power flow of the transmission line or transformer exceeds the allowable value)
In case of occurrence of voltage, adjust the connection status of the system, load / generator values or the on / off status of the voltage adjustment device, perform the power flow calculation again, and confirm the voltage / power flow status in the system. To adjust. Adjustment of this system required skill and time.

(B) The training content is evaluated after the training is carried out. In this evaluation, the instructor evaluates the operation content of the trainee during the training, the recorded result and the state reproduced by the training reproducing means. Was being done. The trainees were also explained using these information and functions. The instructor needed skill to perform these evaluations, and it took time to examine an exemplary operation method in advance.

(C) As described above, when the training is evaluated, the operation contents and system status of the trainee under training are reproduced by the training reproducing means. Conventionally, the reproducing data storage means has a fixed cycle. Since the data was saved, the system status at the time of the accident could not be saved depending on the cycle settings. or,
At the time of evaluation, it was not possible to confirm unless the information displayed on the man-machine device, such as the scope of the accident, the relays that operated, the details of the operations performed by the trainee, were checked in detail.

(D) As described above, in order to carry out training, it is necessary to create an initial system used for training. When the power system operation training simulator is linked to the active system when creating this initial system, the data necessary for creating the initial system is imported from the active system. This capture is
Since it was done by the instructor's instructions, it was difficult to capture the late night data.

Further, when carrying out training, it is necessary to reproduce as faithfully as possible the phenomenon that occurs in the actual system when an accident or the like occurs. For this reason, various adjustments are necessary, but it is difficult to make adjustments due to lack of data when an accident or the like actually occurs.

The present invention has been made in order to solve the above problems. It is easy to set the initial system state, the setting of accident data is as abundant as in the actual operation, and the efficiency after the training is carried out. The purpose is to provide a power system operation training simulator that can be evaluated quantitatively.

[0028]

A power system operation training simulator according to [Claim 1] of the present invention executes optimum power flow calculation by a training system creating / adjusting means having a configuration of a conventional power system operation training simulator. The system was replaced with a training system creation / automatic adjustment means that automatically adjusts the system state, and a constraint relaxation means was provided to deal with the case where an optimal power flow calculation solution could not be obtained.

The power system operation training simulator according to [Claim 2] of the present invention is, in addition to the configuration of the conventional power system operation training simulator, a restoration procedure for reproducing the restoration procedure based on the system state reproduced by the training reproducing means. The configuration is such that a creation means and a recovery procedure comparison means for comparing the operation content of the trainee with the procedure created by the recovery procedure creation means are added.

The electric power system operation training simulator according to [Claim 3] of the present invention checks the voltage of each bus bar when the electric power system operation training simulator has the structure of the conventional electric power system operation training simulator and reproduces the system state. , The bus bar with a low voltage is color-changed and displayed, and the switch whose opening / closing state has changed from the initial state is replaced with a color-changing reproducing means for color-changing display, which is necessary for regeneration when a system state change occurs. A configuration is provided in which a data storage means for time-varying reproduction is added to retrieve data from the simulator data storage area and store it in the reproduction data storage area.

The electric power system operation training simulator according to [Claim 4] of the present invention is, in addition to the configuration of the conventional electric power system operation training simulator, automatically generates system data required for training from the operation system at the time designated by the instructor. Specified time system data importing means, and the operating status of various relays in the operating system and the voltage at the monitoring point are periodically checked, and system data is automatically imported from the operating system when an abnormality occurs. A means, an accident system data storage area for storing the captured data, and an accident system reproduction device for reproducing the imported system at the time of the accident are added.

[0032]

In the electric power system operation training simulator according to [Claim 1] of the present invention, when the electric power system operation training simulator is linked to the operation system, as in the conventional case, when the new training system is regenerated, Using the system data acquisition means, the data necessary for creating the initial system for training is acquired from the operational system.

Thereafter, the instructor corrects the initial system data through the man-machine device for the instructor, such as changing the connection state, changing the load power, changing the generator output, and the like. If the system is not linked to the operation system, the data necessary for creating the initial training system is input via the instructor man-machine device.

At the stage where the initial system data has been set, the instructor activates the training system creating / automatic adjusting means via the instructor man-machine device. Prior to starting the training system and activating the automatic adjusting means, constraint conditions such as voltage upper and lower limit constraints and overload constraints are set in advance via the instructor man-machine device.

The training system creation / automatic adjustment means carries out the optimum power flow calculation, so that the voltage and power flow conditions in the power system satisfy the constraint conditions set by the instructor, and the state of turning on / off the voltage adjusting device and the generator. Automatically adjust output etc. After the initial system for training is created, the training is started and ended in the same manner as the conventional technique.

The system operation training simulator according to [Claim 2] of the present invention starts and ends the training as in the prior art. After the training is completed, the instructor sets the training reproduction through the instructor man-machine device and activates the system simulation monitoring / control means. The system simulation monitoring / control means activates the training reproducing means.

The training reproducing means takes out system data from the reproduction data storage area and stores it in the simulator data storage area. When creating a recovery procedure, the instructor stops the training reproduction, sets recovery procedure creation through the instructor's man-machine device, and activates the system simulation monitoring / control means.

The system simulation monitoring / control means activates the restoration procedure creating means. The recovery procedure creating means reads the system status reproduced by the training reproducing means from the simulator data storage area, and also reads the knowledge information necessary for creating the recovery procedure from the recovery procedure creating knowledge information. The restoration procedure creating means saves the created restoration procedure in the restoration procedure saving area. The recovery procedure means activates the recovery procedure comparison means after saving the data.

The recovery procedure comparison means compares the recovery procedure stored in the recovery procedure storage area with the switching status of the switch and the generator and load adjustment status of the system data stored in the reproduction data storage area, and the comparison result To the simulator data storage area. The contents written in the simulator data storage area can be viewed via the instructor man-machine device and the trainee man-machine device.

The power system operation training simulator according to [Claim 3] of the present invention creates an initial system for training and starts and ends the training as in the prior art. When the training is started, the system simulation monitoring / control means activates the reproduction data storage means at a constant cycle.

When the system state changes, the data storage means for state change reproduction is activated. When the reproduction data storage means and the abnormal situation reproduction data storage means are activated, the data necessary for the training reproduction is taken out from the simulator data storage area and stored in the reproduction data storage area.

When performing the training reproduction, the instructor activates the system simulation monitoring / control means through the instructor man-machine device. The system simulation monitoring / control means activates the color change reproducing means. The color-changing reproduction means checks the voltage of each bus bar when extracting system data from the reproduction data storage area and storing it in the simulator data storage area, and color-changes the part where the voltage is low, or changes from the initial system state. The data for changing the color of the changed open / closed state is added and saved.

In the man-machine device, the added data is checked and the part to which the data is added is color-changed and displayed. As a result, the change status of the system status and the details of the trainee's operation are displayed clearly.

In the electric power system operation training simulator according to [Claim 4] of the present invention, the instructor sets the time to take in the training system from the instructor man-machine device, and activates the designated time system data taking means. At the designated time system data importing means, when the import time set by the instructor is reached, system data required for creating the initial system for training is imported from the operational system and stored in the initial system data storage area.

Further, the fault system data fetching means periodically checks the operating states of various relays in the operating system and the voltage at the monitoring point, and when the relays operate or the voltage value falls below a certain value, Import systematic data,
Save in the system data save area at the time of an accident.

When regenerating the system at the time of the accident, the instructor notifies the system simulation monitoring / control means of the system regeneration at the time of the accident via the man-machine device and activates it. The system simulation monitoring / control means activates the system regenerating means in the event of an accident. The accident system regeneration means retrieves data from the accident system data storage area and stores it in the simulator storage area. After that, the system status at the time of the accident that occurred in the operational system is reproduced as in the case of the training reproduction of the conventional technique.

[0047]

Embodiments Embodiments will be described below with reference to the drawings. An embodiment of the power system operation training simulator according to [Claim 1] of the present invention will be described below. FIG. 1 is a functional block configuration diagram of an embodiment for explaining a power system operation training simulator according to [Claim 1]. In FIG. 1, the same parts as those in FIG. 9 are designated by the same reference numerals and the description thereof will be omitted. Moreover, FIG.
3 is a flow chart for explaining the processing of this embodiment.

In FIG. 1, reference numeral 12 is a training system creating / automatic adjusting means, which executes optimum power flow calculation in the calculating section.
Further, 13 is a constraint relaxing means for relaxing the constraint when the system state satisfying the constraint cannot be obtained even if the optimum power flow calculation is carried out.

Next, the operation will be described. In the present embodiment, when a new training system is created, if the power system operation training simulator is linked to the operation system, the instructor uses the instructor man-machine apparatus 1 to acquire the system data acquisition means 3 as in the conventional case. Start up and import the data necessary for creating the initial system for training from the operational system.

After that, the instructor modifies the initial system data through the instructor man-machine device 1, such as changing the opening / closing state of the switch, changing the load power, changing the generator output, and the like. If it is not linked to the operation system, the data is input through the instructor man-machine device 1.

At the stage when the initial system data has been set,
The instructor creates a training system via the instructor man-machine device 1.
The automatic adjustment means 12 is activated. Training system creation / automatic adjustment means 12 performs optimal power flow calculation, and automatically adjusts voltage regulators and generator output so that the voltage and power flow conditions in the power system satisfy the constraint conditions set by the instructor. .

Here, the optimum power flow calculation is to solve an optimum calculation problem as shown in the following formula (the following formula is an example, and the constraint condition and the objective function can be set), and the linear programming is used as a solution. Method or quadratic programming method is used.

Objective Function (1) Minimization of total fuel cost. (2) Minimization of transmission loss. (3) Minimize the difference between the captured data and the calculated value.

Constraint conditions (1) Supply and demand balance conditions in the power system. (2) Upper and lower limit constraints on generator output. (3) Upper and lower limits of bus voltage. (4) Upper limit constraint on the power flow value of transmission lines and transformers.

In the optimum power flow calculation, the generator output and the on / off state of the voltage adjusting device are adjusted so that the above constraint conditions are satisfied. Since the data necessary for setting the constraint conditions and setting the objective function are stored in the conventional simulator data storage area 7, the training system creation / automatic adjustment means 12 carries out the optimum power flow calculation based on these data. To do.

When the solution for the optimum power flow calculation is obtained, the adjustment of the training initial system is terminated. Further, when the solution for the optimum power flow calculation is not obtained, the training system creation / automatic adjustment means 12 activates the constraint relaxation means 13. The constraint relaxing means 13 relaxes the constraint condition (relaxes the constraint).

An example of the processing contents of the training system creating / automatic adjusting means 12 and the constraint relaxing means 13 will be described with reference to FIG.
In step S31, the initial system data (opening / closing state of the switch, generator output, load power, etc.) is retrieved from the initial system data storage area 5. In step S32, the power flow is calculated based on the read initial system data, and the bus voltage, the power flow value, etc. are obtained.

In step S33, as a result of power flow calculation using the initial system data, based on the upper and lower limit values of the voltage set by the instructor man-machine apparatus 1, the power flow allowable value of the transmission line, the transformer, etc. Create functions and constraints.

In step S34, the solution of the optimum power flow calculation problem created in step S33 is obtained using linear programming, quadratic programming, or other mathematical programming. In step S35, it is determined whether or not a solution to the optimum power flow calculation problem has been obtained. When the solution is obtained, the process proceeds to step S36, and the optimum power flow calculation result is written in the simulator data storage area 7.

If the solution does not converge, the process proceeds to step S37, and the priority is set in descending order according to the priority (set by the instructor from the instructor man-machine device 1 or saved in the simulator data storage area 7). (For example, the allowable value of the power flow of a transmission line or a transformer is 1.0
5 times) and the process returns to step S34.

Here, steps S31 to S36 are processes performed by the training system creating / automatic adjusting means 12, and step S37 is processes performed by the constraint relaxing means 13. After the initial system for training is created, the training is started and ended in the same manner as the conventional technique.

According to this embodiment, the voltage regulator and the generator output are automatically set so that the constraint conditions are satisfied by adding the voltage upper and lower limit constraints and the overload constraint to the optimum power flow calculation. The instructor's burden will be greatly reduced because the adjustment will be made on a daily basis. Further, even when the system state satisfying the condition cannot be obtained, the system state which is close to the condition can be obtained by relaxing the constraint.

An embodiment of the power system operation training simulator according to [Claim 2] of the present invention will be described below. FIG. 3 is a functional block configuration diagram of an embodiment for explaining a power system operation training simulator according to [Claim 2]. In FIG. 3, the same parts as those in FIG. 9 are designated by the same reference numerals and the description thereof will be omitted. FIG. 4 is a flow chart for explaining the processing of this embodiment.

In FIG. 3, reference numeral 14 is knowledge information for creating a recovery procedure necessary for creating a recovery procedure after an accident occurs, 15 is a recovery procedure creating means for creating a recovery procedure after an accident, and the like.
16 is a recovery procedure saving area for saving the created recovery procedure,
Reference numeral 17 is a recovery procedure comparison means for comparing the recovery operation stored in the recovery procedure storage area with the recovery operation performed by the trainee.

Next, the operation will be described. In this embodiment, the training is started and ended in the same manner as in the prior art. After the training, the instructor sets the start of the training reproduction via the man-machine device 1 for the instructor and activates the system simulation monitoring / control means 6, but this is the same as the conventional technique. The different contents will be described below.

First, the system simulation monitoring / control means 6 activates the training reproducing means 11. The training reproduction means 11 takes out system data from the reproduction data storage area 10 and writes it in the simulator data storage area 7. When creating a recovery procedure, the instructor sets the stop of the training reproduction from the instructor man-machine device 1 and activates the system simulation monitoring / control means 6.

The system simulation monitoring / control means 6 notifies the training reproduction means 11 of the stop of the training reproduction. Upon receiving the notification of the stop of the training reproduction, the training reproducing means 11 stops the extraction of the data from the training reproduction data storage area 10 and the writing of the data to the simulator data storage area 7.

Next, the instructor sets the restoration procedure creation via the instructor man-machine device 1 and activates the system simulation monitoring / control means 6. The system simulation monitoring / control means 6 activates the restoration procedure creating means 15. The recovery procedure creating means 15 is the training reproducing means 11
The state of the system reproduced by is read from the simulator data storage area 7.

Further, the knowledge information necessary for creating the recovery procedure is read from the recovery procedure creation knowledge information 14. This restoration procedure creation knowledge information 14 stores, for example, the following rules for restoring the system after the accident. The following is an example, and other rules may be used.

(1) The fault avoidance route is searched from the interconnection line having a high priority. (2) If there are multiple failure avoidance routes, select the route with the smallest number of interconnection lines. (3) Routes where the voltage of the interconnection line connecting to the healthy system of each route is high. (4) Each route should be a route with less boosting when viewed from a healthy system. (5) Restore from the one with a large independent grid capacity.

(6) Restoration of the generator is prioritized by the accident emergency restartable generator, nuclear power generator, hydroelectric generator, and general generator. (7) In the system connected by the restoration route, set the generator output and load power in consideration of supply and demand balance. (8) Route that keeps the overload of equipment that requires overload countermeasures within the allowable value. (9) No secondary overload occurs. (10) If the phase difference between both ends of the closing switch is within a certain value, loop switching is performed. Otherwise, power failure switching is performed.

The recovery procedure creating means 15 is a knowledge of the operation status of various relays, voltage distribution status, switch open / close status, load power, generator output, etc., and recovery procedure creation knowledge read by the simulator data storage area 7 due to an accident. Based on the rules for recovery operation read from information 14, create a recovery procedure suitable for the accident occurrence situation.

Now, an example of an algorithm for creating the accident recovery operation procedure by the recovery procedure creating means 15 will be described with reference to the flowchart of FIG. In FIG. 4, step S41 reads the operating status of various relays, the distribution status of voltage, the switching status of the switch, the load power, the generator output, etc. from the simulator data storage area 7 in order to understand the accident status and check the status immediately after the accident. Recognize interconnection lines to the grid.

In step S42, a restoration route is searched for in the order of individual system, generator, and load in order of priority. In step S43, the generator output and load power of the system connected by the restoration route obtained in step S42 are determined. In step S44, measures are taken when an overload occurs and the recovery route is reviewed by the overload measure.

In step S45, the occurrence of secondary overload after the countermeasure against overload is checked, and if the secondary overload occurs, the restoration route is reviewed. In step S46, the operating procedure required for paralleling the independent systems is created. Step S
At 47, it is determined whether the loop switching or the power failure switching is performed based on the phase difference of the switches to be turned on, and the switching operation procedure within the sound system is created.

In step S48, the recovery operation procedure obtained in steps S41 to S47 is compiled, a final accident recovery procedure considering the supply and demand balance is created, and the process is terminated. The restoration procedure creating means 15 saves the restoration procedure created as described above in the restoration procedure saving area 16. The recovery procedure creating means 15 stores the data, and then the recovery procedure comparing means 17
To start.

The recovery procedure comparison means 17 is a recovery procedure storage area.
In the restoration procedure saved in 16, the open / closed state of the switch to be operated, the output of the generator and load, and the switch performed by the trainee during the training saved in the playback data storage area 10 Comparing the opening and closing operations and the adjustment state of the generator and load,
The comparison result is written in the simulator data storage area 7. The contents written in the simulator data storage area 7 can be viewed through the instructor man-machine device 1 and the trainee man-machine device 2.

According to the present embodiment, the recovery procedure is automatically created during the training reproduction, and the difference between the created procedure and the operation procedure of the trainee is displayed. There is no need to create it, and the burden on the instructor is greatly reduced. Further, it is not necessary for the instructor to have skill as in the conventional case regarding the recovery operation.

An embodiment of the power system operation training simulator according to [Claim 3] of the present invention will be described below. FIG. 5 is a functional block configuration diagram of an embodiment for explaining a power system operation training simulator according to [Claim 3]. 5, those parts that are the same as those corresponding parts in FIG. 9 are designated by the same reference numerals, and a description thereof will be omitted. 6 and 7 are flow charts for explaining the processing of this embodiment.

In FIG. 5, 18 is a data storage means for time-varying reproduction, which stores data necessary for reproduction in the reproduction data storage area when a system state change occurs, and 19 is a bus bar having a low voltage during training reproduction. Color change display means, and color change reproduction means for adding data necessary for color change display of the switch whose opening and closing state has changed from the initial state, 20 starts and reproduces the color change reproduction means 19. It is a reproduction time management means for managing the data capture destination.

Next, the operation will be described. In this embodiment, the initial system for training is created and adjusted. Also, the start and end of the training are performed in the same manner as in the prior art. At the start of the training, the instructor sets the time to start the storage of the reproduction data, the time to end the reproduction, and the data storage cycle via the instructor man-machine device 1.

When the training is started, the system simulation monitoring / control means 6 activates the reproduction data storage means 9 at a constant cycle in accordance with the cycle set by the instructor. Reproduction data storage means 9
In the same manner as in the prior art, the necessary data is taken out from the simulator data storage area 7, the time is added and the data is stored in the reproduction data storage area 10. The process up to this point is the same as in the conventional example.

Further, the system simulation monitoring / control means 6 activates the status change reproduction data storage means 18 when the training is started.
Further, as in the conventional case, the power system response simulation means 8 is started.
The power system response simulation means 8 adds data indicating that the state has changed due to an accident when the switch is opened by simulating the operation of various relays in response to the accident (for example,
A flag is provided, and if there is a change, the flag is turned on: hereinafter referred to as an interruption flag at the time of an accident) and saved in the simulator data saving area 7.

The data storage means 18 for state-like reproduction checks the state of the system stored in the simulator data storage area 7, and if a system state change occurs, the simulator data storage area 7 reproduces the data after the training is completed. Necessary data is extracted, and data indicating the time and the system state at the time of the state change are added (for example, a flag is provided, and if there is a state change, the flag is turned on: hereinafter referred to as state change flag ) Do.

Here, FIG. 6 shows an example of the determination process of the data storage means 18 for state change reproduction. In step S51, the operation status of the relay read from the simulator data storage area is checked. If the relay is operating, the state change flag is turned on in step S52.

In step S53, it is determined whether or not the change in the load power exceeds the allowable value within a fixed time. If the allowable value is exceeded, the condition flag is turned on in step S54.
And In step S55, it is determined whether or not the change in the generator output exceeds the allowable value within a fixed time. If it exceeds the allowable value, the state change flag is turned on in step S56.

In step S57, it is determined whether the bus voltage is below the reference value. If it is less than the reference value, the state change flag is turned on in step S58. After completion of the determination, the state change reproduction data storage means 18 adds a state change flag to the data taken out from the simulator data storage area and stores it in the reproduction data storage area 10.

When the training is to be replayed after the end of the training, the instructor man-machine device 1 sets the replay start time, the replay end time and the replay cycle, and activates the system simulation monitoring / control means 6. The system simulation monitoring / control means 6 activates the reproduction time management means 20. The reproduction time management means 20 checks the time information in the reproduction data storage area 10, and when the reproduction start time set by the instructor is calculated, the color change reproduction means 19 is activated.

After that, the color change reproduction means 19 is activated in accordance with the reproduction cycle set by the instructor. When the reproduction time management means 20 searches the reproduction data storage area 10 for the ON state of the state change flag indicating the change in the system state, the color change reproduction means 19 is activated even outside the reproduction cycle.

When the color change reproducing means 19 is activated, it retrieves system data and writes it in the simulator data storage area 7. At the time of writing, for example, in accordance with the flow shown in FIG. 7, the bus voltage value of the system data is checked in step S61. If the voltage value is lower than the reference value, the bus voltage corresponding to the corresponding voltage value is checked. Etc. and data for color change is added.

Here, as shown in step S62, the man-machine apparatus 1 for instructors and the man-machine apparatus 2 for trainees
The color code that can be recognized by is red. Next, in step S63, the open / close state of the switch of the system data in the initial system data storage area 5 is compared with the open / close state of the switch of the system data stored in the reproduction data storage area 10.

If there is no change in the state, the processing is ended.
If the states are different, the process proceeds to step S64. Step S64
Then, check the accident shutoff flag of the switch. If the interruption flag at the time of accident is ON, the process proceeds to step S65.
In step S65, for example, the color code of the corresponding switch is set to yellow.

If the interruption flag at the time of accident is OFF, the process proceeds to step S66. In step S66, the color code of the switch is set to blue, for example. According to the written color code, the instructor man-machine device 1 and the trainee man-machine device 2
At, the bus bar where the voltage is abnormal, or the switch that has changed from the initial state of training is displayed in different colors.

According to the present embodiment, the reproduction data is always saved when the state of the system changes due to an accident or the like.
When performing training regeneration, check the voltage of each bus bar, etc., and color-display the places where the voltage is low, or the places where the open / closed state has changed from the initial system state. , Clearly indicate the status of changes in the system status and the operation details of the trainee.

Therefore, the spread range of the accident and the contents of the recovery operation of the trainee can be easily confirmed. It is also possible to select and display the system status only at the time when the system status changes during training by retrieving data showing the system status change in the simulator data storage area with the training reproduction management means. Become.

An embodiment of the power system operation training simulator according to [Claim 4] of the present invention will be described below. FIG. 8 is a functional block configuration diagram of an embodiment for explaining a power system operation training simulator according to [Claim 4]. 8, those parts that are the same as those corresponding parts in FIG. 9 are designated by the same reference numerals, and a description thereof will be omitted.

In FIG. 8, reference numeral 21 is a designated time system data importing means for automatically importing the data necessary for creating the initial system of training from the operational system at the time designated by the instructor, and 22 is the operational system based on the condition set by the instructor. The data necessary for accident recovery that was transferred from the operating system is transferred to the accident system data storage area.
It is a means of importing system data at the time of an accident to be stored in 23.

25 is a system in which the operating status of the relays in the operating system, the voltage and frequency of the monitoring points, etc. are periodically checked according to the conditions set by the instructor, and if abnormalities occur, the system data necessary for accident recovery is trained. 23 is an accident replay data editing means for transferring to an accident, 23 is an accident system data storage area for storing the data captured by the accident system data importing means, and 24 is an accident stored in the accident system data storage area 23. It is a system regeneration means at the time of an accident that regenerates the system state at time.

Next, the operation will be described. In this embodiment, when the data necessary for creating the initial system for training is taken in from the operational system, the instructor activates the system data importing means 3 via the instructor man-machine device 1 as in the prior art. The system data fetching means 3 fetches data necessary for creating an initial system from the operating system and stores it in the initial system data storage area 5. The instructor creates and adjusts the initial system for training based on the acquired data.

When the instructor takes in the system state at another time instead of the system state of the operating system at the current time, the time to take in the data is set via the instructor man-machine device 1 and the designated time system data is taken in. The means 21 is activated.

The designated time system data importing means 21 is necessary for creating an initial system from the operating system when the current time of the computer matches the time set by the instructor, or when the current time has passed the time set by the instructor. Data is acquired and stored in the initial system data storage area 5. Training is started and ended in the same manner as in the prior art.

Further, the instructor sets the accident condition via the instructor man-machine device 1. For example, (1) type of relay to monitor operation, (2) bus bar to monitor voltage drop and reference value to judge voltage drop, (3) measurement point to monitor frequency anomaly and upper and lower limit values to determine anomaly , Etc. are set on the screen and the system data acquisition means 22 at the time of an accident is started.

The accident system data import means 22 transfers the condition for accident judgment set by the instructor to the operating system, and then activates the accident reproduction data editing means 25 of the operating system. When the reproduction data editing means 25 at the time of accident is activated, the operating state of the relay of the operating system, the voltage drop of the monitoring bus, and the abnormality of the frequency are periodically checked according to the conditions set by the instructor.

When the condition set by the instructor is satisfied, the data necessary for accident recovery (switch opening / closing state, relay operating state, generator output, load power, frequency, bus voltage, power flow value, etc.) is fetched, The time of occurrence is added and transferred to the training system, and the training data acquisition means 22 is activated.

Since the operation system periodically saves SV information (switch opening / closing state, relay operating state, etc.) and TM information (generator output, additional power, frequency, bus voltage, power flow value, etc.) The accident reproduction data editing means 25 checks this information to determine whether the condition set by the instructor is satisfied. In addition, the data necessary for accident recovery is fetched from these information.

The accident system data fetching means 22 saves the transferred data in the accident system data saving area 23. The contents to be stored are the conventional data storage means 9 for reproduction.
Is the same as the content stored in the reproduction data storage area 10. When reproducing the stored system status at the time of the accident, the instructor activates the accident system reproduction means 24 via the instructor man-machine device 1.

The system recovery means 24 at the time of the accident uses the data from the system data storage area 23 at the time of the accident (data and date of the accident, the open / closed state of the switch, the operating state of the relay, the generator output, the load power, the frequency, the bus voltage, the flow Value) and write it in the simulator data storage area 7. The system status written in the simulator data storage area 7 can be viewed through the instructor man-machine device 1 and the trainee man-machine device 2.

According to this embodiment, the system data required for training is automatically taken in from the operational system at the time designated by the instructor, and the system data is operated when the system state suddenly changes due to an accident or the like. It can be taken in from the system and the system state at the time of the accident can be regenerated when necessary. As a result, the system data necessary for creating the initial system for training can be imported without any restrictions, and the system state at the time of an accident necessary for adjusting various constants can also be saved and reproduced. Becomes

[0109]

As described above, according to the present invention, the initial system state can be easily set, and the accident data can be set as abundant as in the actual operation. Comparison is possible.

[Brief description of drawings]

FIG. 1 is a functional block configuration diagram illustrating a power system operation training simulator according to [Claim 1] of the present invention.

FIG. 2 is a flowchart for explaining the processing contents of the power system operation training simulator according to [Claim 1] of the present invention.

FIG. 3 is a functional block configuration diagram illustrating a power system operation training simulator according to [Claim 2] of the present invention.

FIG. 4 is a flowchart illustrating the processing contents of the power system operation training simulator according to [Claim 2] of the present invention.

FIG. 5 is a functional block configuration diagram illustrating a power system operation training simulator according to [Claim 3] of the present invention.

FIG. 6 is a flowchart for explaining the processing contents of the power system operation training simulator according to [claim 3] of the present invention.

FIG. 7 is a flowchart illustrating the processing contents of the power system operation training simulator according to [Claim 3] of the present invention.

FIG. 8 is a flowchart illustrating the processing contents of the power system operation training simulator according to [Claim 4] of the present invention.

FIG. 9 is a functional block configuration diagram illustrating a conventional power system operation training simulator.

[Explanation of symbols]

 1 Man-machine device for instructors 2 Man-machine device for trainees 3 System data import means 4 Training system creating / adjusting means 5 Initial system data storage area 6 System simulation monitoring / control means 7 Simulator data storage area 8 Power system response simulation means 9 Reproduction data storage means 10 Reproduction data storage area 11 Training reproduction means 12 Training system creation / automatic adjustment means 13 Constraint relaxation means 14 Recovery procedure creation knowledge information 15 Recovery procedure creation means 16 Recovery procedure storage area 17 Recovery procedure comparison means 18 Data storage means for state change reproduction 19 Color change reproduction means 20 Reproduction time management means 21 Specified time system data acquisition means 22 Accident system data acquisition means 23 Accident system data storage area 24 Accident system reproduction means 25 Accident reproduction data Editing means

Claims (4)

[Claims] 1. A simulator data storage area for storing load power, a generator output, and a switching state of a switch for a power system operation training simulator, and a training system for creating and adjusting a training initial system necessary for training. Automatic adjustment means,
Initial system data storage area that stores the initial system for training, system simulation monitoring and control means that starts or ends training according to the instruction of the instructor, state change in the system due to operation of trainees or instructors and accidents, voltage fluctuation , In a power system operation training simulator consisting of power system response simulation means for simulating frequency fluctuations, optimal power flow calculation is performed in the training system creation / automatic adjustment means to support adjustment of the initial system state and relax constraints. A power system operation training simulator, which is provided with a means for coping with a case where a solution for the optimum power flow calculation cannot be obtained. 2. A simulator data storage area for storing load power for a power system operation training simulator, a generator output, and a switching state of a switch, and a system simulation monitoring / control means for starting or ending training according to an instruction of an instructor. , Power system response simulation means for simulating state changes in the system, voltage fluctuations, and frequency fluctuations due to trainee or instructor operations or accidents, and the results simulated by the power system response simulation means are saved and replayed after training In the power system operation training simulator consisting of the training reproduction means, the recovery procedure creating means for creating a recovery procedure when an accident occurs and the recovery procedure created by the recovery procedure creating means and the recovery operation of the trainee are compared. After the training is completed, the recovery procedure of the trainee is compared with the recovery procedure created by the recovery procedure creating means and the training is performed. A power system operation training simulator characterized by supporting the evaluation of 3. A simulator data storage area for storing load power, a generator output, and a switching state of a switch for a power system operation training simulator, and a system simulation monitoring / control means for starting or ending training according to an instruction of an instructor. , A power system response simulation means for simulating state changes in the system, voltage fluctuations, and frequency fluctuations due to trainee or instructor operations or accidents, and for reproduction by storing the results simulated by the power system response simulation means at regular intervals In a power system operation training simulator consisting of data storage means, a data storage means for state-time reproduction for storing the simulation result when the system state is changed by the result simulated by the power system response simulation means, and after the training is completed. When the state change occurs after the training, it is equipped with a color change reproduction means for displaying the stored reproduction data by changing the color according to the purpose. A power system operation training simulator characterized by supporting the evaluation of training by reproducing the system status of points and displaying the system status in different colors according to the purpose at the time of reproduction. 4. A simulator data storage area for storing load power, a generator output, and a switching state of a switch for a power system operation training simulator, and a training system for creating and adjusting an initial system for training necessary for training. Adjustment means, initial system data storage area for storing the initial system for training, system simulation monitoring / control means for starting or ending the training according to the instruction of the instructor, status in the system for operation or accident of trainee or instructor In a power system operation training simulator consisting of a power system response simulation means that simulates changes, voltage fluctuations, and frequency fluctuations, the data necessary for creating the initial system for training from the operation system at the arrival of the time designated by the instructor from the man-machine device Specified time system data import means to import and system data at the time of an accident that imports system data when an accident occurs in the operating system. Data acquisition means, an accident system data storage area for storing the data acquired by the accident system data acquisition means, and an accident system reproduction means for reproducing the data acquired by the accident system data acquisition means, An electric power system operation training simulator characterized by importing data for creating an initial system for training from the operational system when the time set by the instructor arrives, and reproducing the system state when an accident occurs in the operational system.