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Overall optimal controller setting method of linear multivaricable industrial procedure

An industrial process, global optimal technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems of inconvenient promotion and application, inability to realize online adjustment, etc.

Inactive Publication Date: 2008-10-01
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

It should be pointed out that most of the current optimal controller tuning methods for industrial multivariable processes cannot realize online adjustment, so it is not convenient for practical application

Method used

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  • Overall optimal controller setting method of linear multivaricable industrial procedure
  • Overall optimal controller setting method of linear multivaricable industrial procedure
  • Overall optimal controller setting method of linear multivaricable industrial procedure

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Embodiment Construction

[0066] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and processes are provided, but the protection scope of the present invention is not limited to the following implementations example.

[0067] Such as figure 1 As shown, the optimal controller tuning method proposed in this embodiment is based on the closed-loop control structure. Among them, C is the controller, G is the controlled object, r and y are the input and output of the closed-loop system respectively, u is the controller output, d is the disturbance input, and e is the deviation signal. When the actual operation is implemented, the actual industrial process is the controlled object, and the controller is realized by using the industrial computer. The controller tuning process is the process of adjustin...

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Abstract

The invention relates to global optimum controller setting method in linearity multivariate industrial process. It includes the following steps: starting up industrial personal computer CPU after entering control stage; reading the program in the monitoring module; processing detecting transmitting and A / D conversion for the sampled signal to gain digital quantity input signal; judging the signal polarity; computing error signal estimate optimum controlled process evidential based model parameter; transferring optimal controller design procedures to compute optimal controller initial parameter, finally gain the control signal which is processed by amplitude limit and D / A conversion to drive controlled system to control controlled object. The user online adjusts controller parameter according to current moment process response feature. This is repeated to realize optimum controller setting. The invention can be widely used in process control for all classes of enterprises in many industries.

Description

technical field [0001] The invention relates to a method in the technical field of industrial process control, in particular to a global optimal controller tuning method for a linear multivariable industrial process. Background technique [0002] Linear multiple-input multiple-output process is a common object in industrial production, and with the rapid development of various advanced production processes, more and more production processes are constructed as high-dimensional multivariable control systems, thus Achieve high-efficiency production of high-quality products. However, most of the developed univariate control methods are difficult to apply to multivariable processes due to the cross-linking coupling effect among the output channels of multivariable processes. Although there are already many design methods for multivariable control systems, mainly including linear quadratic optimization (LQG) design method, quantitative feedback method, Nyquist array method, sequ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
Inventor 张卫东刘媛媛顾诞英王伦王萍
Owner SHANGHAI JIAO TONG UNIV
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