JP5285362B2 - Simulation device, simulation control method, and simulation control program - Google Patents

Description

  The present invention relates to a simulation device, a simulation control method, and a simulation control program.

  In the simulation (simulation) of the central processing unit in the conventional electric railway power management system, the control response simulation of the equipment in the substation (hereinafter referred to as equipment) and the operation simulation of the protective relay are performed. When the control process is performed, the operation result of the device depends on the operation sequence of the device. In addition, verification of control logic (that is, verification of simulation results) for devices by the central processing unit has been verified in combination with actual devices.

As a technique for performing such a simulation, a railway substation monitoring device (for example, refer to Patent Document 1) that can omit the connection work during the simulation test, a physical installation space can be saved, and a response analysis is performed. And a substation monitoring control protection system (for example, see Patent Document 2) that can easily perform system tests.
JP 2006-42494 A JP 2002-233059 A

In the simulation of equipment by the central processing unit of the electric power management system in such technology, the control logic does not consider the operation sequence (interlocking) of the equipment in the substation. Even when an operator gives an incorrect control instruction, there is a problem that the error cannot be verified. For this reason, it is inadequate as a function of an operator training apparatus.
Further, even if the simulated control logic in the central processing unit is incorrect, there is a problem that the error in the control logic cannot be verified until the combination with the actual substation equipment is performed. That is, when simulation is executed in the central processing unit, there is a problem that whether or not the operation sequence in the simulation result is correct cannot be verified until combination with actual substation equipment is performed.

  For example, in the technique described in Patent Document 1, simulation is performed at each electric railway substation and there is no verification function for the simulation result. For example, programming errors and operations at the central processing station (central control station) There is a problem that it is not possible to verify whether or not the operation sequence of the power receiving circuit breaker in response to the command from the staff is correct.

  In addition, in the simulation assuming the system test described in Patent Document 2, since the system phenomenon that occurred in the past and actually in the substation is used as the substation information, it corresponds to the event that has not occurred in the past. There is a problem that you can not.

  The present invention has been made in view of such a background, and an object of the present invention is to execute simulation at a central control station after verifying the validity of a simulated operation sequence at a substation.

In order to solve the above-mentioned problem, the present invention is a simulation device that performs simulation of a railway substation and outputs a simulation result, and the operation and result at a central control station that collectively manages the plurality of railway substations. The storage substation for the electric railway, which is input via the input section, and a storage section in which interlocking information, which is information indicating an operational relationship between devices in the electric railway substation, is stored. By comparing the simulated interlocking information that is information indicating the operational relationship between the devices in the simulation of the place and the interlocking information of the storage unit, by determining whether the operation between the devices in the simulated interlocking information is correct , A determination unit for determining the appropriateness of the device operation, and a simulation processing unit for simulating the operation of the device group in the railway substation when it is determined that the operation between the devices is correct as a result of the determination of the appropriateness; , of the validity Constant results, and characterized in that when the operation between the device is determined to be incorrect, it performs an error display on the display unit, and a control unit for the processing ends without performing the operation simulation of the equipment group To do.

  According to the present invention, it is possible to execute simulation at the central control station after verifying the validity of the simulated operation sequence at the substation.

  Next, the best mode for carrying out the present invention (referred to as “embodiment”) will be described in detail with reference to the drawings as appropriate.

(System configuration)
FIG. 1 is a schematic diagram illustrating a configuration example of a railway power management system according to the present embodiment.
The electric railway power management system 10 includes a central processing unit 2 (simulation apparatus) for monitoring and controlling a substation and simulating the operation of equipment in the substation, and an electric railway substation (hereinafter referred to as a substation). ) Includes an interlocking information processing apparatus 3 that transmits interlocking information for verifying the operation sequence in the simulation of the device operation to the central processing unit 2. The central processing unit 2 and the linked information processing device 3 may be a computer called a server or a device such as a personal computer. The central processing unit 2 and the interlocking information processing device 3 are installed in the central control station 1 that manages and manages a plurality of substations (not shown) (operations and results can be displayed).

  The central processing unit 2 executes control on the substation and executes simulation (simulation), and transmits a control signal output from the control unit 21 to the substation. And an input / output unit 22 for receiving linked information (described later) transmitted from the linked information processing apparatus 3 and a storage unit 23 for storing information.

  The interlocking information processing device 3 generates and outputs interlocking information that is a comparison target for verification with respect to simulation of device operation, and transmits the interlocking information output by the interlocking information processing unit 31 to the central processing unit 2. An input / output unit 32 for inputting each information to the interlocking information processing unit 31, a protection interlocking / operation lock database 33 describing the operation lock relationship and protection interlocking relationship of the device, and a protection interlocking / operation lock database 33 of the device It comprises a setting unit 34 for performing update maintenance and inputting setting information for creating linked information to the linked information processing unit 31. The protection interlock is an open state of the device when the protection relay operates. The operation lock refers to an on / off state in another device that is required when a certain device is turned on. Detailed description of the protection interlock and the operation lock will be described later with reference to FIGS.

  In the present embodiment, the central processing unit 2 and the linked information processing device 3 are separate devices, but may be integrated devices. Moreover, the central processing unit 2 and the interlocking information processing device 3 do not have to be installed at the central control station 1, and may be installed at a place other than the central control station 1, such as each substation. At this time, the input / output unit 22 is installed in the central control station 1, and the control unit 21 and the storage unit 23 may be installed in places other than the central control station 1, such as each substation.

  The units 21 and 22 in the central processing unit 2 and the units 31, 32 and 34 in the interlocking information processing device 3 are programs (simulation control programs) stored in a ROM (Read Only Memory) not shown or a HD (Hard Disk) not shown. ) Is implemented in a RAM (Random Access Memory) (not shown) and executed by a CPU (Central Processing Unit) (not shown).

(Protection-linked database)
FIG. 2 is a diagram illustrating a configuration example of the protection-linked database.
The protection interlocking database 33a is a matrix of devices protected by the protection relay, and constitutes the protection interlocking / operation lock database 33 (FIG. 1).
The substation number is a number assigned to each substation. The protection relay number is a number assigned to each protection relay. The device number is a number assigned to each device installed in each substation. “◯” described in the column indicates that when an excessive current flows through the corresponding device, the corresponding protective relay operates if the device is in the on state.

For example, referring to row 101, if an excessive current flows through “device A” and “device A” is turned on, “protective relay A” is connected to “device A”. The circuit breaker connected to the “device A” to which the disconnection instruction is sent opens the circuit to the “device A” and interrupts the current. That is, the “protective relay A” protects the “device A” from excessive current and the like.
Similarly, referring to row 102, if an excessive current flows through “device B” or “device C”, if either “device B” or “device C” is in the on state, “protective relay” “B” indicates that operation is performed to cut off the current flowing through “device B” and “device C”.
In addition, the blank part has shown that it is an apparatus which does not affect the operation | movement of a corresponding protective relay. That is, the “protective relay B” protects the “device B” and the “device C” from excess current and the like.

  That is, the protection-linked database 33a stores information on the operational relationship between a protective relay instructing to cut off power supply to a device in which an abnormality has occurred and a device protected by the protective relay when an abnormality has occurred in the device. Storing.

(Operation lock database)
FIG. 3 is a diagram illustrating a configuration example of the operation lock database.
The operation lock database 33b is a matrix of state conditions of other device groups at the time of input / release for each operation device of the target controlled station, and constitutes the protection interlock / operation lock database 33 (FIG. 1). To do.
The substation number is a number assigned to each substation. The operation device number is the number of a device that is a target of operation discrimination among devices installed in a substation. The possible operation indicates the content of operation that can be performed by the operating device by satisfying the operable condition described later. Possible operations include “input”, “open”, and the like. The device number is a number assigned to each device installed in each substation, and each value of the operable condition is described in each column corresponding to this device number.

  For example, referring to the row 201 in FIG. 3, the “device A” can be turned on (possible operation) is “device C” in the “on” state and “device B” and “device D” in the “off” state. It is necessary to be. Further, referring to the row 202, the “device B” can be turned on (possible operation) is that “device D” is in the “on” state, and “device A” and “device C” are in the “off” state. is necessary. When these conditions are not satisfied, it is assumed that the input operation of each device is impossible. Note that the “ON” state refers to a state in which the device is turned on, and the “OFF” state refers to a state in which the device is open. In FIG. 3, “device A” in the row 201 and “device B” in the row 202 are “−”, but this does not take into consideration the operable condition (input possible condition) for the own device. It is shown that. Furthermore, “Equipment E” to “Equipment G” are all “−”, but this is equipment installed in other substations and does not correspond to the operable conditions (inputable conditions). Is shown.

  In other words, the operation lock database 33b stores information on a device to be turned on or released and information on the turn-on state of other devices necessary for turning on or opening the device.

(Linked information creation process)
Next, each process according to the present embodiment will be described with reference to FIGS. 4 and 5 with reference to FIGS.
FIG. 4 is a flowchart showing the flow of the interlocking information creation process according to the present embodiment.
The interlocking information creation process shown in FIG. 4 is a process executed by the interlocking information processing apparatus 3.
First, simulated type information and substation information are input to the interlocking information processing apparatus 3 via the setting unit 34 and the input / output unit 32 (S101). The substation information includes a substation number to be simulated and a device number. The substation information may not include the device number. The simulation type information stores information on the type of simulation that the user is going to perform. Specifically, information on whether the operation is protection interlock or operation lock is stored.
Next, the interlock information processing unit 31 performs a simulation type determination that determines whether the simulation type information input in step S101 is protection interlock or operation lock (S102).
If the result of step S102 is protection interlock (S102 → protection interlock), the interlock information processing unit 31 performs protection interlock information creation processing for creating protection interlock information (S103). In step S103, the link information processing unit 31 extracts protection link information corresponding to the substation information input in step S101 from the protection link database 33a. That is, the linkage information processing unit 31 extracts a row corresponding to the corresponding substation number from the protection linkage database 33a. At this time, the interlocking information processing unit 31 may further narrow down the protection interlocking information by the device number based on the device number included in the substation information. The protection interlocking information created in this way corresponds to the system change due to the protection relay information of the substation and the equipment state change.

  If the result of step S102 is an operation lock (S102 → operation lock), the interlock information processing section 31 performs an operation lock information creation process for creating operation lock information (S104). In step S104, the interlock information processing unit 31 extracts operation lock information corresponding to the substation information input in step S101 from the operation lock database 33b. That is, the interlocking information processing unit 31 extracts a row corresponding to the corresponding substation number from the operation lock database 33b. At this time, the interlocking information processing unit 31 may further narrow down the operation lock information by the device number based on the device number included in the substation information. However, when an unregistered substation number, device number, or the like is input, the interlock information processing unit 31 does not create operation lock information.

  After step S103 or step S104, the input / output unit 32 transmits the protection interlocking information or the operation lock information (interlocking information) to the central processing unit 2 to the central processing unit 2 (S105).

FIG. 5 is a flowchart showing the flow of verification processing according to the present embodiment.
The verification process shown in FIG. 5 is a process executed by the central processing unit 2.
First, the control unit 21 acquires the interlocking information transmitted in step S105 of FIG. 4 via the input / output unit 22 (S201). The control unit 21 stores the acquired interlocking information in the storage unit 23.
Next, the control unit 21 acquires simulated interlocking information (simulated operation information) that is an operation sequence of the devices in the substation and the protection relay in the simulation through the input / output unit 22 (S202). The simulation interlocking information is, for example, an operation list that is input together when a simulation program is input to the central processing unit 2 or is input to the central processing unit 2 when an operator conducts education and training. This is an operation procedure. Further, the control unit 21 may execute a simulation program at the stage of step S202, and use the simulation result output as simulation interlock information. The specific contents of the simulation interlocking information are, for example, the input state of each device when trying to turn on the protective relay in the simulation result, and the input state of another device when trying to input a certain device.

Then, the control unit 21 compares the simulated interlocking information with the interlocking information and performs control condition determination (S203). Specifically, when the simulated interlocking information is the input state of each device when the protection relay is to be turned on, the control unit 21 compares this information with the input state of each device in the protection interlocking information and agrees. It is determined whether or not. In addition, when it is in the input state of another device when an attempt is made to input a device with simulated interlocking information, the control unit 21 compares this information with the operation lock information and determines whether or not they match. Whether protection interlocking information or operation lock information is used depends on the result of step S102 in FIG.
In step S203, when it is determined that it is irrational (S203 → irrational), that is, when the content of the simulated interlocking information does not match the interlocking information, the control unit 21 displays an error on the input / output unit 22 such as a display. To output that the result is abnormal (S204).
If it is determined in step S203 that it is reasonable (S203 → reasonable), that is, if the content of the simulated interlocking information matches the interlocking information, the control unit 21 activates a simulation program (simulation program) and simulates it. Is executed (S205).
If the simulation program is being executed at the stage of step S202, in step S205, the control unit 21 does not perform the simulation and displays “simulation result OK” on the input / output unit 22 such as a display. Also good.

In the present embodiment, necessary information is extracted from the protection interlocking / operation lock database 33 by the interlocking information processing apparatus 3 and then transmitted to the central processing unit 2. However, the present invention is not limited to this. The database 33 may be transmitted to the central processing unit 2 as it is, or the protection interlock / operation lock database 33 may be stored in the storage unit 23 of the central processing unit 2 in advance.
In such cases, simulation type, substation information, and the like are input via the input / output unit 22 together with the simulation link information, and the control unit 21 uses the simulation type, substation information, and the like as keys to protect interlock / operation lock. The processing in step S203 in FIG. 5 may be performed on the database 33.

Further, according to the present embodiment, in the simulation at the central control station 1, the simulation program is further based on the operation lock information and the protection interlocking information of the equipment transmitted from the interlocking information processing device 3 connected to the central processing unit 2. By making it possible to verify the operation sequence output by the operator, the function of the operator training and training device is satisfied and the validity of the control logic of the central processing unit 2 (that is, the operation sequence output by the simulation program) is verified early. This is effective in preventing erroneous simulation result output.
Furthermore, it is possible to automatically verify whether the operation sequence input by the operator is correct or not in the simulation in the training of the operator.

  Furthermore, simulation is possible without using information on system phenomena that have actually occurred in the past.

It is the schematic which shows the structural example of the electric railway power management system which concerns on this embodiment. It is a figure which shows the structural example of a protection interlocking database. It is a figure which shows the structural example of an operation lock database. It is a flowchart which shows the flow of the interlocking | linkage information preparation process which concerns on this embodiment. It is a flowchart which shows the flow of the verification process which concerns on this embodiment.

Explanation of symbols

1 Central control station 2 Central processing unit (simulation device)
3 Linked information processing device 10 Electric railway power management system 21 Control unit (determination unit, simulation processing unit)
22 Input / output unit (input unit: central processing unit)
31 Interlocking Information Processing Unit 32 Input / Output Unit (Interlocking Information Processing Unit)
33 Protection interlocking / operation lock database 33a Protection interlocking database 33b Operation lock database 34 Setting section

Claims (5)

A simulation device that simulates a railway substation and outputs simulation results,
In the central control station that oversees and manages the plurality of substations for railways, operation and display of results are possible.
A storage unit storing interlocking information that is information indicating an operational relationship between devices in the railway substation;
Comparison between simulated interlocking information, which is input via the input unit, is information indicating an operational relationship between devices in the simulation of the electric railway substation, and the interlocking information in the storage unit, and between the devices in the simulated interlocking information A determination unit that determines the validity of the device operation by determining whether the operation of the device is correct;
As a result of the validity determination, when it is determined that the operation between the devices is correct, a simulation processing unit that simulates the operation of the device group in the railway substation,
As a result of the validity determination, when it is determined that the operation between the devices is not correct, an error is displayed on the display unit, and the control unit terminates the process without simulating the operation of the device group. A simulation apparatus characterized by that.   The interlocking information and the simulated interlocking information both include a protective relay that instructs to cut off the power supply to the device in which the abnormality has occurred, and the operation of the device protected by the protective relay when an abnormality occurs in the device. The simulation apparatus according to claim 1, wherein the corresponding information is the following information.   Both the interlocking information and the simulated interlocking information are correspondence information between the input state of a device to be turned on or released and the input state of another device necessary for turning on or releasing the device. The simulation apparatus according to claim 1. A simulation control method using a simulation device that simulates a substation for electric railways and outputs a simulation result,
The simulator is
Operation and display of results are possible at a central control station that oversees the plurality of railway substations.
Interlocking information that is information indicating the operational relationship between the devices in the railway substation is stored in the storage unit,
Comparison between simulated interlocking information, which is input via the input unit, is information indicating an operational relationship between devices in the simulation of the electric railway substation, and the interlocking information in the storage unit, and between the devices in the simulated interlocking information By determining whether the operation of the device is correct, determine the validity of the device operation ,
As a result of the validity determination, when it is determined that the operation between the devices is correct, the operation of the device group in the railway substation is simulated,
As a result of the validity determination, when it is determined that the operation between the devices is not correct, an error is displayed on the display unit, and the process is terminated without simulating the operation of the device group. Simulated control method.   A simulation control program for causing a computer to execute the simulation control method according to claim 4.

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