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An Optimal Compensation Control Strategy for Batch Processes Based on Process Migration Model

A compensation control and model technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems of insufficient modeling data and difficult modeling

Active Publication Date: 2021-07-23
CHINA UNIV OF MINING & TECH
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Problems solved by technology

[0004] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a batch process optimal compensation control strategy based on a process migration model, which can effectively solve the problem of insufficient modeling data for the new batch process and solve the problem of optimization of energy efficiency The NCO mismatch problem of the model will help improve the effect of final product optimization and greatly improve the comprehensive economic benefits of the enterprise

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  • An Optimal Compensation Control Strategy for Batch Processes Based on Process Migration Model
  • An Optimal Compensation Control Strategy for Batch Processes Based on Process Migration Model
  • An Optimal Compensation Control Strategy for Batch Processes Based on Process Migration Model

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Embodiment Construction

[0059] An intermittent process based on a process migration model optimal compensation control strategy, using two similar intermittent production processes to establish process migration models, including the following steps:

[0060] Step 1: Expand the two-dimensional data matrix to obtain a production process input, output variable matrix X a Y a , B production process input, output variable matrix x b Y b ;

[0061] Where X a Input variable matrix for a production process;

[0062] X b Input variable matrix for b production process;

[0063] Y a Output variable matrix for a production process;

[0064] Y b Output variable matrix for b production process;

[0065] Step 2: Normalization of the data matrix of the A production process and the B production process according to the respective mean and variance, respectively, and establish a process migration model using JYKPLS method;

[0066] Step 3: Construct optimization problems according to the formula (1) and solve the B produ...

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Abstract

A new batch process optimal compensation control strategy based on the process migration model, obtains two similar process data of A and B, and establishes the process migration model; constructs an optimization problem based on the process migration model, and obtains the initial optimal solution; sets the query Points, calculate the similarity between the query data and the historical data; obtain the input and output deviation data of the selected data in the similar process to obtain the optimal compensation value; calculate the deviation of the forecast performance index; update the modeling data set of the new batch process; The latest prediction error of batch K and its first and second confidence intervals; determine whether to perform data elimination and process migration according to the prediction error; update the radius of the trust region. The process migration model can effectively solve the problem that the new batch process is difficult to model due to insufficient data; the optimal compensation control strategy can compensate for the suboptimal solution to the optimization problem of the new batch process, and compensate the model by updating the model in real time with online data Object mismatch.

Description

Technical field [0001] The present invention belongs to the optimization of intermittent process in an industrial production process, and specific relates to an intermittent process based on a process migration model optimal compensation control strategy. Background technique [0002] The intermittent process refers to the production process of processing raw materials into a specific product in accordance with the designated process, and sometimes referred to as a batch process, with parameters change with time, and the working state is unstable. In modern industrial processing, the intermittent process is widely used in the production and manufacture of food, drugs, chemicals and other products. It has many advantages in the production process, high flexibility and low investment costs. Under the rapid development of society, people are constantly improving the requirements of product quality, production cost, environmental protection, and the operational optimization strategy ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 褚菲程相汪一峰贾润达张淑宁
Owner CHINA UNIV OF MINING & TECH
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