Anti-disturbance distribution shape control method for styrene bulk polymerization based on disturbance observer

A technology of disturbance observer and ontology aggregation, which is applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems of particle size distribution shape control, poor stability, etc., and achieve improved stability, suppressed interference, and good Effects of approximation and accuracy
CN112684707BActive Publication Date: 2022-04-26YANGZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
YANGZHOU UNIV
Publication Date
2022-04-26

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Abstract

The invention discloses a method for controlling the anti-interference distribution shape of styrene bulk polymerization based on a disturbance observer, comprising: obtaining a parameterized model of the polymer according to the elementary reaction in the styrene bulk polymerization reaction; The particle size distribution function output by the system is approximated, and the weight vector at the corresponding time is calculated. Based on the input and output data pairs, the state space model between the weight vector and the control input is established by using the subspace identification method; according to the state space model, the existence of interference is also considered In this case, design a PI controller and a disturbance observer respectively to realize the estimation of the unknown disturbance and the effective control of the output distribution function; combined with the Lyapunov stability analysis method, the corresponding controller gain and observer gain are obtained by solving, and the completion For the anti-interference control of the styrene bulk polymerization process, the invention can provide reliable anti-interference performance and improve the stability of the styrene bulk polymerization reaction process.
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Description

technical field

[0001] The invention relates to an anti-jamming distribution method, in particular to a styrene bulk polymerization anti-jamming distribution shape control method, which belongs to the technical field of anti-jamming control. Background technique

[0002] In the past few decades, the control of stochastic systems has been a very active research direction in control theory and applications, and its in-depth research and application are of great significance. With the continuous development of science and technology and the continuous deepening of theoretical innovation, stochastic systems have widely penetrated into aerospace, electronics, communication, astronomy, medicine, biochemistry, finance and other fields. Early research on stochastic system control focused on the statistical properties of the system variables themselves. Typical examples include minimum variance control, linear Gaussian quadratic forms, and systems with Markov jump parameters. Consid...

Claims

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