Design device of controller

A controller calculation, controller technology, applied in the direction of electric controllers, controllers with specific characteristics, adaptive control, etc.

Inactive Publication Date: 2001-12-19
YAMATAKE HONEYWELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This H∞ logic has this advantage, but it is very experimental in theory, and it has not been put into use under the current conditions, because it requires a lot of knowledge to build an actual control system, and it is also difficult to follow the frequency in process control Responses give control specifications for less capable objects, etc.

Method used

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  • Design device of controller
  • Design device of controller
  • Design device of controller

Examples

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no. 1 example

[0044] The present invention will be described in detail below by way of embodiments with reference to the accompanying drawings.

[0045] figure 1 is a block diagram showing the configuration of a design device of a controller in the first embodiment of the present invention. figure 1 The design device comprises a control object model input unit 1, which is used to input control object model parameters; a control object model registration unit 2, which is used to register the model parameters in the memory unit described later; memory unit 3, which is used to store generalized The formula of the device and the formula (formulae) of the controlled object model as a part of the generalized device; the frequency response calculation unit 4 is used to calculate the frequency response of the controlled object model; the adjustment matrix calculation unit 5 for calculating an adjustment matrix T , the matrix T is used to make the error magnitude of the controlled object model cons...

no. 2 example

[0092] In the first embodiment, disturbance w is not considered, but a controlled object model for disturbance w can be obtained. Therefore, in the second embodiment, the method for determining the adjustment matrix T in consideration of the influence of the disturbance w will be described in such a case. In the second embodiment, the general expression of the adjustment matrix T can be given by formula (24) in the same manner as the first embodiment.

[0093] In the second embodiment, each element T of the adjustment matrix T N Determined by: T N = 1 L • max ( | | G y 1 w 1 | | ...

no. 3 example

[0104] In the first and second embodiments, the magnitudes of the model gains are uniformed by the tuning matrix T so that the control weights for the control variables are smooth. But in practice, there is a problem that the control variables y interfere with each other during the control process, and the control is unstable, so sometimes it is required to coordinate the weights for the control of the control variables, in the second embodiment, a weighting matrix is ​​introduced to directly Weight the control variables.

[0105] Figure 11 is a block diagram showing the configuration of the design means of the controller in the third embodiment of the present invention; Figure 12 is a block diagram showing the configuration of a generalized device in the third embodiment of the present invention. Figure 11 The design device is figure 1 The design device of the first or second embodiment shown additionally includes a control variable weight input unit 7 for inputting wei...

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Abstract

A design device for designing a controller according to H infinite (H∞) logic, wherein the formula of the generalized device and the formula of the control object model as a part of the generalized device are stored in the memory unit 3; A frequency response calculation unit 4 for calculating the frequency response of the control object model and an adjustment matrix calculation unit 5 for calculating the adjustment matrix T according to the frequency response of the control object model, so that the gains of the control object model are consistent, a controller calculation unit 6, through The tuning matrix T is applied to the generalization means to calculate the parameters of a controller.

Description

technical field [0001] The present invention relates to H infinity (H ∞ ) logic design multivariable controller design device. Background technique [0002] In recent years, in the field of feedback control, H ∞ Logic is often widely used so that the controller can be designed considering the error between an actual control object and a numerical model of the control object. In conventional control logic, when designing a control system, a model of a controlled object represented by a transfer function and a state formula is prepared, and the control system is designed to stabilize the model. At this time, when there is an insignificant error between the actual control object and the model, the controller designed to stabilize the model can stabilize the actual control object. However, when there is a significant error between the actual controlled object and the model for some reason, the controller cannot stabilize the actual controlled object. [0003] in H ∞ In logi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042G05B11/36G05B13/024
Inventor 北条达也
Owner YAMATAKE HONEYWELL CO LTD
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