JP6639310B2 - Virtual plant simulation system, command device, virtual plant simulation method - Google Patents

Description

  Embodiments of the present invention relate to a virtual plant simulation system, a command device, and a virtual plant simulation method.

  There is a virtual plant simulation system that performs a comprehensive combined test by combining a virtual power plant (plant) and a simulated power generation monitoring and control device that monitors and controls the power generation plant (plant) in order to perform engineering, design, and testing of the power generation monitoring and control device. .

  The conventional virtual plant simulation system is capable of operating at any point from a state in which the operation of the virtual power plant is stopped to a state of rated operation (for example, each starting state of the turbine, turning, heat soak, rated speed, initial load, 25% Load, 50% load, 75% load, 100% load, etc.), it is possible to save the condition data in which the calculation state of the control logic of the simulated power generation monitoring and control device and the input / output values of the plant are balanced. An arbitrary state can be restored by reading the condition data thus set by the simulation power generation monitoring and control device.

  However, in the case of the conventional virtual plant simulation system, in order to save each condition, it is necessary to perform the operation from the start of the plant to the rated output in the same time as the operation of the actual plant, Needs a lot of time.

  Further, every time the control logic of the virtual power generation monitoring and control device is corrected from a certain point, it is necessary to restart the plant and perform operation over time to create condition data.

JP-A-2005-138525

  In the case of a conventional virtual plant simulation system, when simulating the operation of an actual power plant by combining a simulated power generation monitoring and control device and a plant model, the register status inside the simulated power generation plant monitoring and control device and the register status of the plant model are always If the balance is maintained, it is possible to restore to an arbitrary condition.

  However, when correcting a part or all of the control logic of the simulated power generation monitoring and control device, the arrangement of the registers inside the simulated power generation monitoring and control device changes, so that the state of the register of the plant model cannot be balanced. I couldn't use the condition data that I had saved, so I had to repeat the test.

  The problem to be solved by the present invention is that when the logic of the simulation monitoring control device is modified at an arbitrary point, the state of the register inside the simulation monitoring control device is inherited by inheriting the state of the register inside the simulation monitoring control device. A virtual system that maintains the balance with the register state of the model and does not require a restart procedure from a state where operation has been paused at any point, and can resume operation with control logic modified at any point A plant simulation system, a command device, and a virtual plant simulation method are provided.

  The virtual plant simulation system according to the embodiment is a virtual plant simulation system in which a virtual plant simulator that operates a device of a virtual plant on a virtual environment is connected via a simulation network. The virtual plant simulation system is connected to a simulation network and has a first register storing a control value for generating a control signal to be output to the virtual plant simulator, and a control signal obtained as a result of operation based on the control value of the first register. A first controller having a first logic storage unit storing a first control logic for generating the first controller, a second controller connected to the simulation network and operable in the same manner as the first controller, and connected to the simulation network. A command device. The command device includes a first copy unit, a second logic storage unit, a second copy unit, a comparison unit, and a signal selection unit. The first copying unit copies the first control logic of the first logic storage unit and the control value of the first register corresponding to the specified breakpoint from the first controller. The second logic storage unit stores a second control logic obtained by editing the copied first control logic. The second copying unit copies the second control logic of the second logic storage unit and the copied control value of the first register to the second controller. The comparing unit compares the calculation result calculated by the activated second controller from the break point with the calculation result calculated by the operating first controller from the break point. The signal selection unit switches the output of the control signal to the virtual plant simulator from the first controller to the second controller when the result of the comparison by the comparison unit satisfies a preset condition.

It is a figure showing composition of a virtual plant simulation system of an embodiment. It is a figure showing composition of a simulator in a virtual plant simulation system. It is a figure showing composition of a controller and a commander in a virtual plant simulation system. FIG. 3 is a diagram illustrating an internal configuration of a commander and a plurality of controllers. It is a flowchart which shows operation | movement of a virtual plant simulation system. It is a figure showing an example of an edit screen of control logic. It is a figure showing a 2nd embodiment (a modification of a connection list). It is a figure showing a 3rd embodiment (addition of a storage part). It is a figure showing a 4th embodiment (replacement with a simple node). It is a figure showing an example of a simple node created with Microsoft Excel in a 4th embodiment. It is a figure showing a 5th embodiment (addition of a trap function). It is a figure showing the example of connection of a controller, IES, and a commander in a 5th embodiment.

  Hereinafter, embodiments will be described in detail with reference to the drawings.

(1st Embodiment)
FIG. 1 is a diagram showing a virtual plant simulation system according to the first embodiment.
As shown in FIG. 1, the virtual plant simulation system according to the first embodiment includes a plurality of monitoring control terminals 20, an integrated maintenance terminal 30, and a server terminal 40 on a virtual environment of a high-performance computer such as a workstation. , A control network 70 connected to a controller 50 as a control device so as to be able to communicate with each other, a simulation network 80 connected to the control network 70, and a plurality of models connected to the simulation network 80 so as to be able to communicate with each other. A controller 50 (CNT1, CNT2... CNTn in the drawing), a simulator 10 as a simulation device for simulating a virtual power plant (virtual power plant) and the like, and a commander 60 as a command device are provided.

  That is, in this virtual plant simulation system, the simulator 10 for operating the equipment of the virtual plant on the virtual environment is connected via the simulation network 80. Note that the simulation network 80 and the control network 70 are each duplicated as in the actual network.

  The monitoring control terminal 20 is a terminal at which the operator issues a virtual plant operation command, for example, a human interface terminal, and is hereinafter referred to as HMI1, HMI2,.

  The integrated maintenance terminal 30 is, for example, the integrated engineering station 30 and is hereinafter referred to as IES 30. The IES 30 is a terminal on which the operator performs maintenance work. For example, the IES 30 edits the control logic stored in the controller 50, starts and stops operation when confirming the operation of the virtual power plant, and instructs a desired breakpoint (tracking point). Perform operations.

FIG. 2 is a diagram showing a configuration of the simulator 10.
As shown in FIG. 2, the simulator 10 includes a power plant model 100, a shared memory 107, and a transmission server 112.

  The power generation plant model 100 has operation execution modules such as an actuator model 101, a plant physical model 102, and a measuring instrument model 103. The data of the calculation execution result (calculation result, calculation parameter, and the like) of the power generation plant model 100 is stored and reflected in the shared memory 107.

  The shared memory 107 stores calculation parameters 108, physical model input / output values 109, measuring instrument model input / output values 110, actuator input / output values 111, and the like.

  The transmission server 112 receives each command transmitted from the commander 60 and passes it to the power plant model 100. The power plant model 100 performs an operation according to the command transmitted from the transmission server 112, that is, executes and stops the model.

  During execution of the simulation operation, the simulator 10 exchanges each input / output value (data) of the pre-selected shared memory 107 with the commander 60 via the transmission server 112 to operate the virtual power plant based on the power plant model 100. The simulator 10 starts, operates, and stops the virtual power plant based on a command from the commander 60.

  The simulator 10 and each controller 50 operate based on an “execute” command input from the commander 60. The simulator 10 and the controller 50 start the simulation and the control calculation of the virtual power plant according to the input “execution” command, and thereby, input signals and output signals between the controller 50 and the commander 60 and between the simulator 10 and the commander 60. Send and receive.

  When “stop” is instructed by the commander 60, all the connected controllers 50 and the simulator 10 stop the calculation and maintain the state.

  The commander 60 performs signal connection between the controller 50 and the simulator 10 according to the connection lists 66a and 66b (see FIG. 3) stored in the connection list storage unit 66 in advance to simulate the operation of the virtual power plant.

  As shown in FIG. 3, the connection list storage unit 66 stores connection lists 66a and 66b. In the connection lists 66a and 66b, a column of FROM and a column of TO are provided in correspondence.

  The connection list 66a is a list for linking for transmitting an output signal output from the controller (CNT1, CNT2) 50 as an input signal to another controller (CNTn) 50 and the simulator (P) 10.

  In the FROM column, columns such as node numbers “1” and “2”, which are identification information of the controllers (CNT1, CNT2) 50, and columns of variables (register values) of output signals from the controllers (CNT1, CNT2) 50. Are provided, and a node number and a variable (register value) are set in advance.

  In the column of TO, the node numbers “n” of the controller (CNTn) 50 and the simulator (P) 10, and in the column of “P”, the variables of the input signals to the controller (CNTn) 50 and the simulator (P) 10 (registers Value) columns are provided, and a node number and a variable (register value) are set in each column in advance.

  The connection list 66b is a list for linking for transmitting output signals output from the controller (CNTn) 50 and the simulator (P) 10 as input signals to other controllers (CNT1, CNT2) 50.

  In the FROM column, the node numbers “n” and “P” of the controller (CNTn) 50 and the simulator (P) 10 and the variables of the output signals from the controller (CNTn) 50 and the simulator (P) 10 (of the registers). Value) columns are provided, and a node number and a variable (register value) are set in each column in advance.

  In the column of TO, columns of node numbers “1” and “2” of the controller (CNT1, CNT2) 50 and columns of variables (register values) of input signals to the controller (CNT1, CNT2) 50 are provided. In each column, a node number and a variable (register value) are set in advance.

  In this case, the control unit 67 performs necessary signal connection by passing a signal value between a node on the output side of the signal and a node on the input side in accordance with the preset connection lists 66a and 66b. (See FIG. 4).

  Here, the internal configuration of the commander 60 mainly for maintenance and the plurality of controllers 50 will be described. Here, the plurality of controllers 50 will be described separately for a service system and a standby system. In order to make the description easy to understand, the controller 50 of the service system is referred to as a controller 50A, and the controller 50 of the standby system is referred to as a controller 50B.

  As shown in FIG. 4, the controller 50A is a first controller, and includes an arithmetic unit 51A, a register 52A as a first register, a tool interface 53A, and a logic storage unit 55A.

  Control logic for generating a control signal to be given to the simulator 10 is rewritably stored in the logic storage unit 55A. The register 52A stores a control value serving as original data for generating a control signal to be output to the simulator 10.

  The operation unit 51A reads the control logic of the logic storage unit 55A, executes the operation of the control logic using the control value of the register 52A as an input, generates a control signal of the operation result, and outputs the control signal to the simulator 10.

  The tool interface 53A outputs the calculation result of the calculation unit 51A to the IES 30, and monitors the result on a maintenance program (maintenance tool) operating on the IES 30. The calculation result by the calculation unit 51A is also output to the commander 60.

  The controller 50B is a second controller operable in the same manner as the controller 50A, and includes a calculation unit 51B, a register 52B as a second register, a tool interface 53B, and a logic storage unit 55B.

  Control logic for generating a control signal to be given to the simulator 10 is rewritably stored in the logic storage unit 55B. The register 52B stores a control value serving as original data for generating a control signal to be output to the simulator 10.

  The operation unit 51B reads the control logic of the logic storage unit 55B, executes the operation of the control logic using the control value of the register 52B as an input, generates a control signal of the operation result, and outputs the control signal to the simulator 10.

  The tool interface 53B outputs the calculation result of the calculation unit 51B to the IES 30, and causes the IES 30 to monitor the result on a maintenance tool. The calculation result by the calculation unit 51B is also output to the commander 60.

  The commander 60 includes a copy section 61 as a first copy section, a logic storage section 62 as a first logic storage section, an editing section 63, a logic storage section 64 as a second logic storage section, and a copy section as a second copy section. 65, a connection list storage unit 66, a control unit 67, a signal selection unit 68, a comparison unit 69, and ports for input signals, output signals, commands, and the like.

  The copy unit 61 copies (duplicates) the old control logic of the logic storage unit 55A from the controller 50A and the control value of the register 52A corresponding to the designated breakpoint, and stores the copy in the logic storage unit 62.

  The editing unit 63 reads the old control logic copied to the logic storage unit 62, edits the old control logic by an operation on the edit screen 81 (see FIG. 6) of the IES 30, and edits the second control logic (hereinafter referred to as “new control logic”). ) Is created and stored in the logic storage unit 64.

  That is, the logic control unit 64 stores the new control logic edited by the editing unit 63 from the old control logic copied to the logic storage unit 62 by the copy unit 61.

  The copy unit 65 copies the new control logic of the logic storage unit 64 and the control value of the register 52A corresponding to the copied designated breakpoint to the controller 50B.

  The copy here means that the new control logic is overwritten in the logic storage unit 55B of the controller 50B and the control value of the register 52A is overwritten in the register 52B of the controller 50B.

  The control unit 67 transmits a corresponding command to the controllers 50A and 50B and the simulator 10 by an operation such as “start”, “execution”, and “stop” by the operator of the IES 30, and causes the controllers 50A and 50B and the simulator 10 to execute. . For example, by outputting a command (command) for stopping the operation of all the operating devices, the operation and calculation of all the controllers 50A and 50B and the simulator 10 connected via the simulation network 80 are stopped, and the state of the operation is stopped. To maintain.

  The comparison unit 69 calculates an operation result (output signal) calculated from the breakpoint designated by the IES 30 by the controller 50B activated by an activation command from the control unit 67, and an operation result (output signal) computed by the operating controller 50A from the breakpoint. Output signal).

  When the comparison result of the calculation result (output signal) by the comparison unit 69 satisfies a preset condition (for example, the output value of the control logic matches), the signal selection unit 68 outputs the control signal to the simulator 10 by the controller. Switch from 50A to controller 50B.

Next, the operation of the virtual plant simulation system will be described with reference to the flowchart of FIG.
In this example, the function as a controller capable of continuing the operation of the virtual power generation plant while correcting the control logic is realized by a set of the controller 50A of the service system and the controller 50B of the standby system.

  When the control logic is corrected, the control unit 67 outputs a control logic copy command to the copy unit 61. Thereby, the copy unit 61 reads out the control logic stored in the logic storage unit 55A of the controller 50A of the ordinary system, and stores it as the old control logic in the logic storage unit 62 of the commander 60 through the simulation network 80. That is, the control logic of the ordinary system is copied (step S101 in FIG. 5).

  Next, in order to modify the logic of the copied control logic, the operator activates the editing unit 63 from the IES 30 and displays an editing screen 81 as shown in FIG. The edit screen 81 displays a sheet selection button 82, a display sheet 83 for the old control logic, and a display sheet 84 for the new control logic generated by editing the copied old control logic.

  By operating the sheet selection button 82 on the edit screen 81 and designating the old control logic in the logic storage unit 62, the old control logic is displayed on the display sheet 83.

  Here, the copy operation of the old control logic is performed, the sheet selection button 82 is operated to switch the display sheet 84 side to active, and then, when the paste operation is performed, the old control logic is pasted and displayed on the display sheet 84. Therefore, thereafter, the control logic of the display sheet 84 can be edited as a new control logic (step S102).

  The example of the edit screen 81 is an example in which the input line of the signal “Dw002” is deleted and a new control logic is generated.

  At this time, the editing unit 63 allocates a reference register (input value) necessary for performing the calculation and a register (output value) for storing the calculation result to the new and old control logics.

  For example, in the case where the calculation result is held, such as the value of the hold signal of the control logic, the value of the integrator and the timer, a register area for tracking is allocated from the register 52A of the normal system to the register 52B of the standby system (for example, TD1234).

  After the editing, the operator performs a save operation, so that the new control logic is stored in the logic storage unit 64.

  After the new control logic is stored in the logic storage unit 64, when the operator designates a tracking point from the IES 30 to check the corrected control logic (step S103), and performs an activation operation on the standby controller 50B, The control unit 67 outputs a new control logic copy command to the copy unit 65.

  Upon receiving the new control logic copy command, the copy unit 65 tracks the signal assigned to the tracking register area, and overwrites the result of the normal operation on the register 52B of the standby system. Tracking means that the value of the reference register is synchronized (follows) with the copy destination register.

  Therefore, the values of the hold signal, the integrator, the timer, and the like that are important for control in the standby controller 50B are balanced with the state of the virtual power plant (power generation plant model 100).

  Next, a start command is output from the control unit 67 to the copy unit 65 and the standby controller 50B. Then, the copy unit 65 writes (copies) the corrected new control logic stored in the logic storage unit 64 to the logic storage unit 55B of the standby controller 50B (step S104).

  In the controller 50B that has received the activation command from the control unit 67, the calculation unit 51B reads the new control logic from the logic storage unit 55B. Then, the calculation unit 51B inputs the value of the register 52B corresponding to the designated tracking point to the read new control logic, and starts calculation (step S105).

  Thereafter, both the controller 50A of the service system and the controller 50B of the standby system operate, that is, enter the duplex operation state.

  As an input signal from the connection list in the connection list storage unit 66, the same signal is input to both the service controller and the standby controller. As a control signal as a controller for the simulator 10, the control signal of the service controller 50A is selected by the signal selection unit 68, and the operation of the virtual power plant by the service controller 50A is continued.

  On the other hand, the result of the operation performed by the controller 50A of the service system using the old control logic and the result of the operation performed by the controller 50B of the standby system using the new control logic are input to the commander 60 as output signals of the respective controllers. The comparison unit 69 captures and compares these output signals (step S106), thereby obtaining a difference and outputting the difference to the control unit 67.

  The control unit 67 checks the difference received from the comparison unit 69 against a preset condition, and determines whether there is a problem in the soundness of the operation (step S107).

  As a result of this determination, when it is determined that the difference does not match the condition and there is a problem in the soundness of the operation, that is, when the switching of the controller is not OK (No in step S107), the control unit 67 sets the standby system The controller 50B outputs a "stop" command to the controller 50B to stop the standby controller 50A (step S108).

  On the other hand, as a result of the determination, it is confirmed that the difference matches the condition, there is no problem in the soundness of the operation, and when it is determined that the switching of the controller is OK (Yes in step S107), the control unit 67 sets the simulator 10 Is instructed to switch the output of the control signal to the controller 50A from the controller 50A to the controller 50B, and the signal selector 68 switches the output of the control signal to the simulator 10 from the controller 50A to the controller 50B according to the instruction.

  After switching the output of the control signal, the control unit 67 outputs a “stop” command to the service controller 50A to stop the service controller 50A (step S109). Thus, the operation of the virtual power plant by the simulator 10 is continued by the control signal of the standby controller 50B.

  As described above, according to the first embodiment, in performing a comprehensive combination test of monitoring and control of a virtual power plant by the controller 50A, when a control logic of the controller 50A needs to be modified at a certain breakpoint, the control is performed. The control logic can be changed while continuing the test, and the test can be continued while maintaining the balance between the value of the register 52A of the controller 50A at the break point and the new control logic, and the virtual power plant can be configured. Resources can be reduced.

Next, a second embodiment will be described with reference to FIG.
This second embodiment is a modified example of the connection lists 66a and 66b shown in FIG. 3. As shown in FIG. 7, the connection list 66a includes, for example, "123.4" in the variable column of the node 1 of the FROM. , And a fixed value such as “ON” is set in the variable column of the node 2 in the FROM. In the connection list 66b, for example, a fixed value such as “234.5” is set in the variable column of the node 1 of the FROM, and a fixed value such as “OFF” is set in the column of the variable of the node 2 of the FROM.

  In this case, the control unit 67 connects necessary signals by passing signal values and fixed values according to the connection lists 66a and 66b set in advance.

  According to the second embodiment, by setting fixed values in the connection lists 66a and 66b, the exchange of input / output signals between the controller 50 and the simulator 10 constituting the virtual power plant can be reduced.

Next, a third embodiment will be described with reference to FIG.
The third embodiment is an application of the second embodiment shown in FIG. 7, and includes a storage unit 72 in the commander 60 as shown in FIG. The storage unit 72 stores data on the operation states of all the controllers 50 and the simulator 10. A “save” command and a “restore” command are added as commands issued by the control unit 67.

  In the commander 60, the control unit 67 stops the operation of the controller 50 and the simulator 10 at the specified break point, and automatically assigns a name to the data of the state of the controller 50 and the state of the simulator 10 when the operation is stopped and saves the data. It is stored in the unit 72.

  In the third embodiment, when the control section 67 outputs a “stop” command in the commander 60, all the calculations of the controller 50 and the simulator 10 are stopped. When the operation is stopped, the data of the operation states of all the controllers 50 and the simulator 10 (input / output signals of plant equipment, control logic, data of registers at the time of stop: data of cross section) are maintained in a buffer memory or the like.

  When the control unit 67 outputs the “save” command in a state where the data of the calculation state is maintained in this manner, the controller 50 or all the controllers 50 and the simulators 10 operating the virtual power plant maintained in the buffer memory are operated. Is automatically given a name and stored in the storage unit 62.

  Thereafter, when the control unit 67 outputs a “restore” command, the data of the operation state stored in the storage unit 62 is selected, and the operation states of all the controllers 50 and the simulator 10 are restored from the specified operation state. Can be.

  According to the third embodiment, the simulator 10 that simulates the virtual power plant and the controller 50 that monitors and controls the operation of the virtual power plant are operated in the process of simulating the operation of the virtual power plant from start-up to rated load operation, for example. Important event states at breakpoints such as turning, heat soak, rated speed, initial load, 25% load, 50% load, 75%, and rated load can be saved and restored. It can be performed efficiently and repeatedly.

Next, a fourth embodiment will be described with reference to FIGS.
As shown in FIG. 9, in the fourth embodiment, a part of the controllers (CNT2) 50 of the plurality of controllers (CNT1, CNT2... CNn) 50 of the third embodiment described above is replaced with a simple node 90. It is an example.

  The simple node 90 can be created by various software and development languages. For example, the simple node 90 is created and configured by software having a specific programming language such as Visual Basic, Microsoft Office, C #, and C ++.

  FIG. 10 shows an example of the simple node 90 created by Microsoft Excel. Visual Basic, Microsoft Office, Microsoft Excel, etc. are trademarks of Microsoft Corporation.

  The simple node 90 displays an input signal transmitted from the commander 60 via an Excel connection I / F 91 as a form file on Excel in a table format. The simple node 90 performs an arithmetic operation on the numerical value of the input signal cell by using the Excel function, and outputs the operation result to the output signal cell.

  Then, the simple node 90 transmits the data of the output variable area on the Excel form to the commander 60 via the Excel connection I / F 91.

  According to the fourth embodiment, part or all of the controller 50 or the simulator 10 can be replaced with the simple node 90 to perform the simulation of the controller 50, the simulator 10, the hard panel, and the like. Since setting, simple response, graph display, and the like can be performed, it is possible to easily confirm the logic operation of the controller 50 and create evidence.

Next, a fifth embodiment will be described with reference to FIGS.
As shown in FIG. 11, the fifth embodiment is an example in which a trap table 73 is added to the configuration of the third embodiment.

  In the case of the fifth embodiment, a trap function is constituted by the trap table 73 provided in the commander 60 and the control unit 67.

  The trap table 73 stores a trap number, a node number, a variable, and a condition of a monitoring signal in a corresponding manner. As conditions, a determination formula, a threshold value, and a command are set correspondingly. The control unit refers to the trap table 73 and outputs a corresponding command to the node when the condition for the monitoring signal is satisfied.

  That is, in the trap table 73, a condition for outputting a command with respect to an input signal from the controller 50 and the simulator 10 and an output destination are set correspondingly, and the control unit 67 determines when the condition for the input signal is satisfied. Output the command to the output destination.

  In the fifth embodiment, when a monitoring signal is input to the commander 60, the controller 67 can output a command that satisfies the condition to an arbitrary node by referring to the trap table 73. For example, when the control unit 67 outputs an “execution” command, the value of the monitoring signal is always transmitted from each node.

In the commander 60, the control unit 67 determines whether or not the condition is satisfied according to the judgment formula of the condition set in advance and the threshold value using the monitoring signal as a trap signal, and sets the condition in advance when the condition is satisfied. Output “command”.
FIG. 12 is a diagram illustrating a connection example of the IES 30, the controller 50, and the commander 60.

  As shown in FIG. 12, the controller 50 has an arithmetic unit 51, a register 52, a tool interface 53, and a logic storage unit 55. The function of each unit of the controller 50 is the same as the function of the configuration of FIG. 4 described in the first embodiment.

  The calculation unit 51 inputs the value of the register 52 to the control logic read from the logic storage unit 55 based on a command from the commander 60, and executes the calculation.

  The IES 30 monitors the calculation result of the controller 50 via the tool interface 53. When the commander 60 outputs a command of “stop only the operation function” to the controller 50, the IES 30 can monitor the input / output state of the operation immediately before the stop.

(Effect of Fifth Embodiment)
When the controller 50 is operating in real time, if a problem occurs due to a configuration error of the control logic or the like, it may take time to identify the true cause.
According to the fifth embodiment, for example, when a specific trap (monitoring signal) becomes “true”, part or all of the controller 50 is “stopped”, and the IES 30 monitors the logic state. Therefore, it is easy to analyze the true cause of the monitoring signal becoming “true”.

  Also, by providing the commander 60 with a trap function, a signal at each breakpoint when operating the virtual power plant is trapped, and a "stop", "save", and "execute" commands are output in order. Automatically save the state of any breakpoints (eg turbine start-up, turning, heat soak, rated speed, initial load, 25% load, 50% load, 75% load, 100% load, etc.) Will be possible.

  Although an embodiment of the present invention has been described, this embodiment is provided by way of example and is not intended to limit the scope of the invention. This new embodiment can be implemented in other various forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and their equivalents.

  Further, each component shown in the above embodiment may be realized by a program installed in a storage such as a hard disk device of a computer, or the program is stored in a computer-readable electronic medium: The functions of the present invention may be realized by causing a computer to read the program from an electronic medium. Examples of the electronic medium include a recording medium such as a CD-ROM, a flash memory, and a removable medium. Furthermore, the present invention may be realized by distributing and storing components in different computers connected via a network, and communicating between the computers in which the respective components function.

  Reference Signs List 10: Simulator, 20: Monitoring and control terminal, 30: Integrated maintenance terminal (Integrated Engineering Station: IES), 40: Server terminal, 50, 50A, 50B: Controller, 51, 51A, 51B: Operation unit, 52, 52A, 52B ... registers, 53, 53A, 53B ... tool interfaces, 55, 55A, 55B ... logic storage units, 60 ... commanders, 61 ... copy units, 62 ... logic storage units, 62 ... storage units, 63 ... editing units, 64 ... logic Storage unit, 65: copy unit, 66: connection list storage unit, 66a, 66b: connection list, 67: control unit, 68: signal selection unit, 69: comparison unit, 70: control network, 72: storage unit, 73 ... Trap table, 80: simulation network, 81: edit screen, 82: sheet selection button, 83, 84: display system DOO, 90 ... simple node 100 ... power plant model, 101 ... actuator model, 102 ... plant physical model 103 ... meter model 107 ... shared memory, 112 ... transmission server.

Claims (8)

In a virtual plant simulation system in which a virtual plant simulator that operates virtual plant equipment on a virtual environment is connected via a simulation network,
A first register that is connected to the simulation network and stores a control value for generating a control signal to be output to the virtual plant simulator; and a control signal obtained as a result of operation based on the control value of the first register. A first controller having a first logic storage unit in which a first control logic to be generated is stored;
A second controller connected to the simulation network and operable similarly to the first controller;
A command device connected to the simulation network,
The command device,
A first copying unit that copies the first control logic of the first logic storage unit from the first controller and a control value of the first register corresponding to a specified breakpoint;
A second logic storage unit in which a second control logic obtained by editing the copied first control logic is stored;
A second control logic of the second logic storage unit, a second copying unit that copies the copied control value of the first register to the second controller,
A comparison unit configured to compare a calculation result calculated by the activated second controller from the breakpoint with a calculation result calculated by the operating first controller from the breakpoint;
A virtual plant simulation system comprising: a signal selection unit that switches a control signal output to the virtual plant simulator from the first controller to the second controller when a result of the comparison by the comparison unit satisfies a preset condition. .   The virtual plant simulation system according to claim 1, further comprising: a control unit that stops the first controller after the output of the control signal is switched to the second controller. A storage unit for storing data,
At the specified breakpoint, the operation of the first controller and the virtual plant simulator is stopped, and the state data of the first controller and the virtual plant simulator when the operation is stopped is given a name and stored in the storage unit. The virtual plant simulation system according to claim 1, further comprising: a controller configured to perform the control.   The virtual plant simulation system according to claim 1, further comprising: an editing unit that edits the first control logic copied from the first controller to generate a second control logic. A table in which the first and second controllers and a condition for outputting a command in response to an input signal from the virtual plant simulator and an output destination are set;
The virtual plant simulation system according to claim 1, further comprising: a control unit configured to output the command to the output destination when a condition for an input signal is satisfied.   2. The virtual plant simulation system according to claim 1, further comprising a maintenance tool that monitors an operation status of at least a controller controlling the virtual plant among the first and second controllers. 3. A virtual plant simulator for operating the equipment of the virtual plant in a virtual environment, a first register storing a control value for generating a control signal to be output to the virtual plant simulator, and a control value of the first register. A simulation network is provided for a first controller having a first logic storage unit storing a first control logic for generating the control signal as a result of the arithmetic operation, and a second controller operable similarly to the first controller. Command device connected via
A first copying unit that copies the first control logic of the first logic storage unit from the first controller and a control value of the first register corresponding to a specified breakpoint;
A second logic storage unit in which a second control logic obtained by editing the copied first control logic is stored;
A second control logic of the second logic storage unit, a second copying unit that copies the copied control value of the first register to the second controller,
A comparison unit configured to compare a calculation result calculated by the activated second controller from the breakpoint with a calculation result calculated by the operating first controller from the breakpoint;
A command device comprising: a signal selection unit that switches an output of a control signal to the virtual plant simulator from the first controller to the second controller when a result of the comparison by the comparison unit satisfies a preset condition. A virtual plant simulator for operating the equipment of the virtual plant in a virtual environment, a first register storing a control value for generating a control signal to be output to the virtual plant simulator, and a control value of the first register. A first controller having a first logic storage unit storing a first control logic for generating the control signal as a result of the arithmetic operation, a second controller operable similarly to the first controller, and a command device. In a virtual plant simulation method in a virtual plant simulation system connected via a simulation network,
The command device copies the first control logic of the first logic storage unit from the first controller and a control value of the first register corresponding to a specified breakpoint,
The command device stores a second control logic obtained by editing the copied first control logic,
Copying the stored second control logic and the copied control value of the first register to the second controller;
The command device compares a calculation result calculated by the activated second controller using the control value of the first register from the break point with a calculation result calculated by the operating first controller from the break point. And
A virtual plant simulation method wherein the command device switches the output of a control signal to the virtual plant simulator from the first controller to the second controller when a result of the comparison satisfies a preset condition.

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