JPH10232702A - Supporting device for multivariable control parameter adjustment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set control parameter optimum for dynamic characteristics by setting a control model based on input/output data, inputting the control parameter adjusted by a user and confirming control performance. SOLUTION: A control model matched with the input/output of the control system of actual machine is prepared by a control model preparing means 3, data are collected concerning control system input/output data designated by the user, control model conditions are inputted, and the control model is automatically prepared. The control parameter of prepared control model is sent to a multivariable controller 9, the response of control system is inputted, and the response of control system predicted by the control model and the actual response of control system are comparatively displayed. From this comparison, the user judges whether it is necessary to adjust the control parameter or not. A parameter arithmetic means 4 designs the control parameter and outputs it to the control model preparing means 3 and a transmission parameter setting means 6. This newly set control parameter is sent to the multivariable controller 9 and really controls the control system.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multivariable control parameter adjustment support device for supporting a control parameter adjustment operation of a multivariable control device.

[0002]

2. Description of the Related Art In recent years, the use of multivariable control devices based on the optimal regulator theory has been increasing for the purpose of improving the control performance of a controlled object having a plurality of variables that interfere with each other. Here, the optimal regulator theory is a theory for determining an optimal control coefficient (control parameter) that achieves both control stability and quick response in the control of a multi-input multi-output system. According to the optimal regulator theory, when a control model of a system to be controlled (hereinafter, referred to as a control system) is set, it is possible to set an optimum control parameter in the control model by a desk calculation. it can.

However, an actual control device (actual control system)
In the case of application to real machines, the behavior of the actual machine is different from the control model and control parameters in the design, so it is essential to appropriately adjust the control parameters according to the dynamic characteristics of the actual machine in order to achieve good control. It is a task that cannot be done.

In the control parameter adjustment, particularly in the case of a multivariable control device, since a plurality of control parameters are related to each other, a satisfactory control performance can be obtained by adjusting each parameter independently. It was difficult.

That is, in order to satisfactorily adjust the control parameters, the response of the actual machine is confirmed by changing the control parameters one by one, but the response of the actual machine is changed by the influence of the change of other control parameters. Therefore, a plurality of control parameters have to be adjusted by trial and error in consideration of the overall control performance.

[0006] However, such a work has an excessive workload, so that the conventional control parameter adjustment work involves only setting one control parameter at the time of design and confirming the response of the actual machine. A plurality of control parameter sets are prepared, and only one of the control parameters is determined by comparing the control performance with the actual machine.

[0007]

However, according to the above-described conventional control parameter adjustment method, the control parameters designed on the desk are adopted as they are, and the dynamic characteristics of the control model used for the design and the dynamic characteristics of the actual machine are used. When there is a large difference in the control performance, not only the effect of improving the control performance by the multivariable control device cannot be obtained, but also the control performance may be reduced.

When satisfactory control performance cannot be obtained by the conventional method, a control model and control parameters are set again on a desk, and the control performance is confirmed by an actual machine based on the control parameters, and the control is satisfactory. Until then, the above adjustment was repeated. This adjustment requires a great deal of effort because the control parameters influence each other as described above.

Therefore, the problem to be solved by the present invention is to set a control model based on input / output data of the actual machine, and immediately input the control parameters adjusted by the user to the actual machine to confirm the control performance. Accordingly, it is an object of the present invention to provide a multivariable control parameter adjustment support device capable of setting a control parameter optimal for a dynamic characteristic of an actual machine.

[0010]

According to a first aspect of the present invention, there is provided a multivariable control parameter adjustment support apparatus for assisting a control parameter adjustment operation of a multivariable control apparatus. Creating a control model from communication means for transmitting and receiving data to and from the control system input / output data obtained from the control system to be controlled via the communication means, and control model conditions for creating a control model specified by a user A control model creating means, a parameter calculating means for calculating the control parameters of the control model, and a control state of the multivariable control device. Control system monitoring means for outputting a control signal for instructing control parameter change or control stop, and the parameter calculation means Transmission parameter setting means for inputting a control parameter or a control signal from the control system monitoring means and setting a control signal to be transmitted to the multivariable control device via the communication means, the control model creation means, A computing means, a control system monitoring means, a menu means for selecting a process by any one of the transmission parameter setting means, and a plant protection for outputting to the transmission parameter setting means a control parameter change or control stop forced command by a user input. And means.

The multivariable control parameter adjustment support apparatus according to claim 2 of the present invention is the multivariable control parameter adjustment support apparatus according to claim 1, wherein the control model creation means sends a data collection instruction for creating a control model to the control model creation means. A data collection function unit for outputting to a communication unit, a model condition input function unit for inputting a model condition for creating a control model, a model condition input by the model condition input function unit, and input / output data of the control system A model identification function unit for calculating a control parameter of the control model, a response comparison function unit for comparing the response of the control system with the response of the control model, and a selection function unit for selecting a process by any of the function units When,
It is characterized by having.

The multivariable control parameter adjustment support device according to claim 3 of the present invention is the multivariable control parameter adjustment support device according to claim 1, wherein the parameter calculation means includes a design function unit for allowing a user to design a control parameter; A pole-zero display function unit that displays the poles and zeros of the control system according to the designed control parameters on a complex plane, a simulation function unit that displays the execution result of the simulation of the control system, and one of the function units. And a selection function unit for selecting a process.

According to a fourth aspect of the present invention, there is provided the multivariable control parameter adjustment support apparatus according to the first aspect, wherein the control system monitoring means displays a real-time trend of input / output of the control system. A trend display function unit, which monitors input / output data of a control system, and outputs a control signal for instructing a change of a control parameter or a stop of the control to the control parameter setting means when the control is determined to be unstable; And a functional unit.

According to a fifth aspect of the present invention, there is provided the multivariable control parameter adjustment support apparatus according to the first aspect, wherein the transmission parameter setting means includes a signal of the control system monitoring means or the plant protection means. Thus, the control parameters before the change to the current control parameters are transmitted to the multivariable control device via the communication means.

According to the multivariable control parameter adjustment support apparatus of the present invention, the control model creation means uses the control system input / output data collected from the control system via the communication means and the control model conditions input by the user to A control model is created. The control parameters of the control model are sent to the multivariable control device via the control system monitoring means, the transmission parameter setting means, and the communication means, and the response of the control system based on the control parameters is fed back to the control model creation means.

When the control parameters are adjusted by the response of the control system, the control parameters are set by the parameter calculation means. The newly set control parameters are sent to the multivariable control device via the transmission parameter setting means and the communication means, and the response of the control system based on the control parameters is fed back to the control model creation means.

On the other hand, the control state of the control system is monitored by the control system monitoring means. If the control of the control system becomes unstable during the operation of adjusting the control parameters, the control system monitoring means issues a command. A command to change the parameter or stop the control is sent to the multivariable control device to protect the control system.

Further, when the user decides that the control of the control system is unstable by the plant protection means, the user can input a command for forcibly changing the control parameter or a command for stopping the control. Can be protected.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a multivariable control parameter adjustment support device of the present invention will be described with reference to the drawings.

FIG. 1 shows the configuration of a multivariable control parameter adjustment support device according to an embodiment of the present invention. FIG.
As shown in FIG. 1, the multivariable control parameter adjustment support device 1 of the present embodiment includes a communication unit 2 and a control model creation unit 3
, Parameter calculation means 4, control system monitoring means 5, transmission parameter setting means 6, menu means 7, and plant protection means 8.

Here, the "means" may be constituted by hardware so as to perform each processing described later, but preferably, the information processing is controlled by software to perform each processing. It is a device.

The communication means 2 transmits and receives data to and from a multivariable control device 9 for controlling a system to be controlled (control system). The data transmitted and received by the communication means 2 includes actual input / output data of a control system, control signals, control parameters necessary for the multivariable control device 9 to perform control, and the like.

The control model creating means 3 collects actual input / output data specified by the user from the control system via the communication means 2 and controls the control system input / output data and the control for creating the control model specified by the user. This is a means for performing processing for automatically creating a control model from model conditions. Further, the control model creation means 3 of the present embodiment also performs a process of comparing and displaying the response by the control model and the response of the actual control system. This will be further described later.

The parameter calculating means 4 is a means for allowing a user to design control parameters of the control model and calculating the designed control parameters.

In setting the control parameters, reference is made to control parameters such as integral gain and feedback gain, and the general tendency of stability and responsiveness of the control system, that is, the arrangement of poles and zero points of the control system is taken into consideration. The setting work of this control parameter is "design of control parameter"
is called. This is also referred to in this specification. Further, observing the control performance of the control system while designing the above control parameters and setting the optimum control parameters is the “control parameter adjustment work” by the apparatus of the present invention.

The control system monitoring means 5 is a means for monitoring the control state of the control system and outputting a change in control parameters or a stop of the control when it is determined that the control is unstable.

The transmission parameter setting means 6 inputs a control parameter change command from the control system monitoring means 5 and a control parameter from the parameter calculation means 4 and
This is a means for setting a control signal to be transmitted to the multivariable control device 9 via the.

The menu means 7 is a means for selecting a process by any one of the control model creation means 3, the parameter calculation means 4, the control system monitoring means 5, and the transmission parameter setting means 6.

The plant protection means 8 is means for forcibly changing the control parameters or stopping the control in response to a user input.

The multivariable control parameter adjustment support device 1 having the above configuration performs the following processing to support the adjustment work of the control parameters of the multivariable control device 9.

First, the control model creating means 3 creates a control model suitable for the input / output of the control system of the actual machine. The control model creation means 3 collects data from the control system for the control system input / output data specified by the user, and allows the user to input control model conditions necessary for creating the control model. Automatically create

The control model creating means 3 sends the control parameters of the created control model to the multivariable control device 9 via the transmission parameter setting means 6 and the communication means 2.
The control system response (new input / output data) based on the control parameter is input, and the control system response predicted by the control model and the actual control system response are compared and displayed.

From the comparison between the response of the control system and the response of the actual control system, the user can determine whether or not it is necessary to adjust the control parameters.

The parameter calculation means 4 assists the control parameter design work when the user determines that the control parameters need to be designed based on the comparison between the control model by the control model creation means 3 and the response of the control system of the actual machine. .

More specifically, the parameter calculating means 4 calculates control parameters for the feedback gain and the integral gain, and shows the arrangement of the poles and zeros of the control system according to the set control parameters. And quick response are displayed in an easy-to-understand manner.

The control parameters designed by the parameter calculation means 4 are output to the control model creation means 3, the control system monitoring means 5, and the transmission parameter setting means 6. The transmission parameter setting means 6 sends the newly set control parameters to the multivariable control device 9, and the multivariable control device 9 actually controls the control system.

The control result of the control system based on the new control parameters is fed back to the control model creating means 3, whereby the control model creating means 3 provides the material for judging the necessity of adjusting the control parameters again (display). And
The control system monitoring means 5 monitors the control state of the control system.

The control system monitoring means 5 monitors the control state of the control system, and when the control of the control system becomes unstable, outputs a control parameter change command or a control stop command to the transmission parameter setting means 6. Then, the command is transmitted to the multivariable control device 9 via the communication means 2.

Further, when the user determines that the control of the control system is unstable, the plant protection means 8
This is a means for inputting a command for forcibly changing a control parameter or a command for stopping control. The control system can be protected by the plant protection means 8.

The menu unit 7 allows the user to select a process by each of the above units.

Hereinafter, the internal configuration and processing of each of the above means will be described. FIG. 2 shows the configuration of the control model creation means 3. As shown in FIG. 2, the control model creation means 3
Data collection function unit 10 and model condition input function unit 11
Model identification function unit 12, response comparison function unit 13,
And a selection function unit 14.

Here, the “functional unit” may be a hardware unit configured to perform information processing, but is preferably an information processing apparatus controlled to perform the information processing by software. Thus, it is substantially the same as “means”, but is used herein as a subordinate element that constitutes “means”.

FIG. 3 shows an example of a computer screen when the control model creating means 3 is realized by software. In the example of FIG. 3, the control model creation means 3 is displayed at the top of the screen.
Soft switches for selecting processing by each of the functional units are listed, and soft switches for selecting processing by each unit of the multivariable control parameter adjustment support device 1 are listed at the bottom of the screen.

The portion of the soft switch at the top of the screen for selecting the processing by each functional unit of the control model creation means 3 corresponds to the selection function unit 14 of the control model creation means 3. In addition, soft switch "data collection", "condition input",
“Identification” and “response comparison” are performed by the data collection function unit 10, the model condition input function unit 11, and the model identification function unit 1, respectively.
2. Corresponds to the response comparison function unit 13.

The portion of the software switch at the bottom of the screen for selecting the processing by each means of the multivariable control parameter adjustment support device 1 corresponds to the menu means 7. Soft switch "model creation", "parameter design", "monitoring",
"Parameter setting" is performed by the control model creation means 3
And a parameter calculation unit 4, a control system monitoring unit 5, and a transmission parameter setting unit 6.

The center part of the screen is a part for displaying the screen (function display screen) of each function part of the control model creation means 3 selected by the selection function part 14.

FIG. 4 shows an example of a screen when the data collection function unit 10 is selected. As shown in FIG. 4, the data collection function unit 10 prompts the user to input a data name to be collected, a sampling period, and a data file name in which the collected control system input / output data is to be stored. At the bottom of the screen, there are provided soft switches for starting and ending data collection. By inputting this screen, input / output data to be collected from the control system of the actual machine is collected.

FIG. 5 shows an example of a screen when the model condition input function unit 11 is selected. As shown in FIG.
The model condition input function unit 11 allows the user to input the number of inputs, the number of outputs, the number of states of the control model, and the file name of input / output data to be used. Further, the user inputs the AR order (autoregressive order) and MA order (moving average order) of each element when creating a control model from each input / output data. It should be noted that a known method of creating a control model based on the ARMA model can be used, and further description is omitted here. By inputting this screen, conditions for creating the control model are specified.

FIG. 6 shows an example of a screen when the model identification function unit 12 is selected. As shown in FIG. 6, the model identification function unit 12 calculates the control parameters of the control model created by the model condition input function unit 11. The control model is identified by calculating the control parameters.

FIG. 7 shows an example of a screen when the response comparison function unit 13 is selected. As shown in FIG. 7, the response comparison function unit 13 displays the response of the control system predicted by the control model and the response of the actual control system on the screen of the vertical axis indicating each output data and the horizontal axis indicating time. Is displayed, and the average error and the standard error of each output data are calculated.

The overall processing flow of the control model creation means 3 is as shown in FIG. That is, the control model creation unit 3 specifies data to be collected by the data collection function unit 10 and collects input / output data from the control system via the communication unit 2. Further, a model condition is specified by the control model condition input function unit 11. The identification function unit 12 creates a control model created from input / output data of the control system and control model conditions, calculates the control parameters, and identifies the control model. The control parameters of the created control model are output to the transmission parameter setting means 6, and the control results are collected via the communication means 2 and compared and displayed by the response comparison function unit 13.

Next, FIG. 8 shows the configuration of the parameter calculation means 4. As shown in FIG. 8, the parameter calculation means 4
It has a design function unit 15, a pole / zero display function unit 16, a simulation function unit 17, and a selection function unit 18.

FIG. 9 shows an example of a computer screen when the parameter calculation means 4 is realized by software. In the example of FIG. 9, the parameter calculation means 4
Soft switches for selecting processing by each of the functional units are listed, and soft switches for selecting processing by each unit of the multivariable control parameter adjustment support device 1 are listed at the bottom of the screen.

The soft switch at the top of the screen for selecting the processing by each function of the parameter calculation means 4 corresponds to the selection function section 18 of the parameter calculation means 4. The soft switches “design”, “pole / zero display”, and “simulation” correspond to the design function unit 15, the pole / zero display function unit 16, and the simulation function unit 17, respectively.

The portion of the soft switch at the bottom of the screen for selecting the processing by each means of the multivariable control parameter adjustment support device 1 corresponds to the menu means 7.

The center part of the screen is a part for displaying the screen of each function part (each function part display screen) of the parameter calculation means 4 selected by the selection function part 18.

FIG. 10 shows an example of a screen when the design function unit 15 is selected. As shown in FIG. 10, the user changes the control based on the determination, and the design function unit 15 calculates a feedback gain, an integral gain, and the like of the control parameter. This allows the user to freely design control parameters.

FIG. 11 shows an example of a screen when the pole / zero display function unit 16 is selected. The pole is the root of the denominator (characteristic equation) of the transfer function in the feedback control, and the zero is the root of the numerator of the transfer function. The poles are important in determining the stability of the control system, and the quality of the control performance of the control system can be determined by looking at the arrangement of the poles and zeros on the complex plane. The pole / zero display function unit 16
As shown in FIG. 11, the complex plane is displayed on a computer screen, and the poles and zeros of the control system are displayed on the complex plane. Thus, the user can grasp the control performance based on the designed control parameters.

FIG. 12 shows an example of a screen when the simulation function unit 17 is selected. As shown in FIG. 12, the simulation function unit 17 simulates the input / output of the control system designed by the design function unit 15 on the screen of the vertical axis indicating the input / output data of the control system and the horizontal axis indicating the time. Display the result.

The entire processing flow of the parameter calculation means 4 is as shown in FIG. That is, the parameter calculation means 4 is activated by the menu means 7, and the design function unit 15 inputs the control parameters before design from the control model creation means 3 and allows the user to design the control parameters.
Transmission parameter setting means 6 for transmitting the designed control parameters
Output to The pole / zero display function unit 16 is selected by the selection function unit 18 and displays pole / zero points on the complex plane as needed. The simulation function unit 17 is selected by the selection function unit 18 and displays a simulation result as needed.

FIG. 13 shows the configuration of the control system monitoring means 5.
As shown in FIG. 13, the control system monitoring means 5 has a trend display function unit 19 and a stability monitoring function unit 20.

FIG. 14 shows an example of a screen when the trend display function section 19 is selected. As shown in FIG. 14, the trend display function unit 19 displays the coordinate plane of the vertical axis input / output and the horizontal axis time on the computer screen, and displays the value of each time of each input / output of the control system on the coordinate plane. That is, the trend is displayed. Thereby, the user can grasp the control performance of the control system by designing the control parameters.

Next, the transmission parameter setting means 6 will be described. The transmission parameter setting means 6 transmits the control parameters calculated by the control model creation means 3 and the parameter calculation means 4 to the multivariable control device 9 via the communication means 2. In addition, the transmission parameter setting means 6 transmits the control parameter before changing to the current control parameter or the control stop / start signal according to the control command from the control system monitoring means 5 or the control command from the plant protection means 8. Is transmitted to the multivariable control device 9 via.

FIG. 15 shows an example of a computer screen when the transmission parameter setting means 6 is realized by software.

As shown in FIG. 15, the transmission parameter setting means 6 comprises a control parameter display section for displaying the set values of the control parameters calculated by the parameter calculation means 4 and the previous set values, and a function selection section. The function selection unit is composed of a soft switch, and can select a button with a pointing device such as a mouse, a trackball, and a touch panel. By the selection of the soft switch, parameter setting (transmission of the adjusted control parameter to the multivariable control device), parameter restoration (transmission of the previous value of the control parameter to the multivariable control device), control suspension (control control stop command The transmission (transmission) and the control start (transmission of the control calculation start command) are transmitted to the multivariable control device 9 through the communication means 2.

The transmission parameter setting means 6 sends a control command for parameter recovery and control stop according to a command from the control system monitoring means 5 or the plant protection means 8 to the communication means 2.
To the multivariable control device 9 through

As described above, the control command to be actually transmitted to the multivariable control device 9 is set by the transmission parameter setting means 6.

Next, the communication means 2 will be described. The communication unit 2 is a data collection function unit 1 of the control model creation unit 3.
The input / output data of the control system to be controlled is received from the multivariable control device 9 by a signal from 0 and output to the control model creation means 3 and the control parameter or control stop / start output from the transmission parameter setting means 6. Is transmitted to the multivariable control device 9.

The menu means 7 will be described.
The menu means 7 can be realized by an external hardware switch in addition to the above-described software.

Further, the plant protection means 8 is realized by an external hardware switch, and includes “parameter return”,
It is composed of two types of PBs (push buttons) of “stop control”. A parameter return command is operated by operating the “return parameter” PB, and a stop control command is operated by operating the “stop control” PB. Send.

[0071]

As is apparent from the above description, the multivariable control parameter adjustment support apparatus according to the present invention creates a design model based on input / output data of a control system of an actual machine, and obtains a response based on the control system model. The response of the actual machine is compared and displayed, so that the control performance of the control model can be easily understood.
Further, the control parameters of the control model are designed by the user, the control parameters are easily designed by the pole / zero display and the simulation function, and the control parameters optimal for the dynamic characteristics of the actual machine are adjusted.

This makes it possible to adjust the control parameters optimal for the dynamic characteristics of the control system of the actual machine, and to improve the control performance of the control system.

Further, the safety of the plant during the control parameter adjustment work is ensured by the control system monitoring means and the plant protection means, so that the safe operation of the control system and the adjustment of the detailed control parameters can be made compatible. .

As described above, according to the multivariable control parameter adjustment support apparatus of the present invention, the design result of the control parameter is immediately fed back to the control system of the actual machine,
The control result is immediately fed back to the multivariable control parameter adjustment support device. As a result, useless reciprocation between the desk design and the adjustment work is eliminated, efficient parameter adjustment becomes possible, and the adjustment period can be significantly shortened.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration and a data processing flow of a multivariable control parameter adjustment support device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a control model creation unit and a flow of data processing according to the present invention.

FIG. 3 is a view showing an example of a screen when the control model creation means of the present invention is realized by software.

FIG. 4 is a diagram showing an example of a screen when the data collection function unit of the control model creation unit of the present invention is realized by software.

FIG. 5 is a diagram showing an example of a screen when the model condition input function unit of the control model creation unit of the present invention is realized by software.

FIG. 6 is a diagram showing an example of a screen when the model identification function unit of the control model creation unit of the present invention is realized by software.

FIG. 7 is a diagram showing an example of a screen when the response comparison function unit of the control model creation unit of the present invention is realized by software.

FIG. 8 is a block diagram showing a configuration of a parameter calculation unit of the present invention and a flow of data processing.

FIG. 9 is a view showing an example of a screen when the parameter calculation means of the present invention is realized by software.

FIG. 10 is a diagram showing an example of a screen when the design function unit of the parameter calculation unit of the present invention is realized by software.

FIG. 11 is a diagram showing an example of a screen when the pole / zero display function unit of the parameter calculation unit of the present invention is realized by software.

FIG. 12 is a diagram showing an example of a screen when the simulation function unit of the parameter calculation unit of the present invention is realized by software.

FIG. 13 is a block diagram showing a configuration of a control system monitoring unit of the present invention and a flow of data processing.

FIG. 14 is a view showing an example of a screen when the trend display function unit of the control system monitoring means of the present invention is realized by software.

FIG. 15 is a view showing an example of a screen when the transmission parameter setting means of the present invention is realized by software.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Multivariable control parameter adjustment support apparatus 2 Communication means 3 Control model creation means 4 Parameter calculation means 5 Control system monitoring means 6 Transmission parameter setting means 7 Menu means 8 Plant protection means 9 Multivariable control device 10 Data collection function unit 11 Model condition Input function part 12 Model identification function part 13 Response comparison function part 14 Selection function part 15 Design function part 16 Pole / zero display function part 17 Simulation function part 18 Selection function part 19 Trend display function part 20 Stability monitoring function part

Claims (5)

[Claims] 1. A multivariable control parameter adjustment support device for supporting an adjustment operation of a control parameter of a multivariable control device, comprising: communication means for transmitting and receiving data to and from the multivariable control device; A control model creation means for creating a control model from control system input / output data obtained from the control system and a control model condition for creating a control model specified by a user, and a user designing control parameters of the control model. Parameter calculating means for calculating a control parameter; and a control system monitor for monitoring a control state of the multivariable control device and outputting a control signal for instructing a change of the control parameter or a stop of the control when the control is determined to be unstable. Means, and a control parameter calculated by the parameter calculation means or a control signal from the control system monitoring means. Transmission parameter setting means for setting a control signal to be transmitted to the multivariable control device via the communication means; any of the control model creation means, parameter calculation means, control system monitoring means, and transmission parameter setting means A multi-variable control comprising: a menu means for selecting a process according to the above; and a plant protection means for outputting a control parameter change or control stop compulsory command to the transmission parameter setting means by a user input. Parameter adjustment support device. 2. A data collection function unit for outputting a data collection command for creating a control model to the communication unit, and a model condition input function unit for inputting a model condition for creating a control model. A model identification function unit that calculates a control parameter of a control model from the model condition input by the model condition input function unit and the input / output data of the control system; and a response of the control system and a response of the control model. 2. The multivariable control parameter adjustment support device according to claim 1, further comprising: a response comparison function unit that performs comparison; and a selection function unit that selects a process performed by one of the function units. 3. 3. A design function unit for allowing a user to design a control parameter, a pole / zero display function unit for displaying poles and zeros of a control system based on the designed control parameter on a complex plane, and 2. The multivariable control parameter adjustment support according to claim 1, further comprising: a simulation function unit that displays an execution result of a simulation of a control system; and a selection function unit that selects a process performed by any of the function units. apparatus. 4. The control system monitoring means includes: a trend display function unit for displaying a real-time trend of the input / output of the control system; and a control parameter for monitoring input / output data of the control system. 2. The multivariable control parameter adjustment support device according to claim 1, further comprising: a stability monitoring function unit that outputs a control signal for instructing the control parameter change or control stop to the control parameter setting unit. 5. The multi-variable control device according to claim 1, wherein said transmission parameter setting means transmits a control parameter before changing to a current control parameter to said multivariable control device via said communication means in accordance with a signal from said control system monitoring means or plant protection means. 2. The system according to claim 1, wherein the system is configured to transmit.
A multivariable control parameter adjustment support apparatus according to the above.