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Process industrial process optimization control method considering input constraint and device thereof

A process industry and process optimization technology, applied in the direction of program control, comprehensive factory control, comprehensive factory control, etc., can solve the problem of difficult adjustment and control of process industry operating variables, so as to improve resource recovery rate and comprehensive utilization level, strictly Convergence and stability, precise control effect

Active Publication Date: 2021-11-19
EAST CHINA UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to provide a process industry process optimization control method and device considering input constraints, to solve the problem that it is difficult to precisely adjust and control the operating variables of the process industry in the prior art

Method used

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  • Process industrial process optimization control method considering input constraint and device thereof
  • Process industrial process optimization control method considering input constraint and device thereof
  • Process industrial process optimization control method considering input constraint and device thereof

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Embodiment 1

[0238] A kind of flow industry process optimization control method considering input constraints of the present invention is illustrated below with the example of collecting the operating data of a certain sewage treatment process, and the specific steps include:

[0239] Step S1: Collect the actual operating data and corresponding production indicators of the sewage treatment process for 14 days, establish the operating process data set, divide the optimal operating variable sample set into classes through the improved fuzzy C-means clustering algorithm, and then scale and denoise Preprocess the data.

[0240] Step S2, based on the operating mode principle, presetting the operating variable.

[0241] Build a state-space model of the wastewater treatment process with input constraints:

[0242]

[0243] where x is the system state vector, μ is the control input vector, and σ is the vector value saturation function;

[0244] Use the following formula to match the optimal o...

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Abstract

The invention relates to the technical field of flow industrial processes, in particular to a flow industrial process optimization control method considering input constraints and a device thereof. The method comprises the following steps: S1, collecting actual operation data of a process industrial process, and establishing an operation process data set; S2, presetting an operation variable based on an operation mode principle; S3, predicting production indexes by using the convolutional neural network regression model; S4, according to the input and state data of the process industrial process, establishing an adaptive dynamic programming double-loop iterative algorithm; and S5, performing optimal control with input constraints on the flow industrial process, so that the flow industrial process meets the target production requirements. The method has strict convergence and stability, the resource recovery rate and the comprehensive utilization level can be effectively improved, control is accurate, and adaptability is high.

Description

technical field [0001] The present invention relates to the technical field of flow industry process, more specifically, relates to a flow industry process optimization control method and device considering input constraints. Background technique [0002] Process industries are industries based on production through physical or chemical changes. [0003] Typical process industries include petroleum, chemical, metallurgical and other industries, and their production is mostly carried out in high temperature and high pressure, flammable, explosive, toxic and harmful environments, and generally has the following characteristics: [0004] 1) External disturbance: easily affected by fluctuations in upper-level process parameters; [0005] 2) Multi-constraints: Due to the physical limitations of the equipment and security considerations, the control input cannot take infinite values; [0006] 3) Mechanism is complex: process industry process involves physical and chemical reacti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCG05B19/41885G05B2219/32339Y02P90/02
Inventor 杜文莉钟伟民李中美钱锋彭鑫
Owner EAST CHINA UNIV OF SCI & TECH
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