Supercharge Your Innovation With Domain-Expert AI Agents!

2D Predictive Fault-Tolerant Control Method for Batch Processes with Time Delay and Disturbance

A fault-tolerant control and time-delay technology, applied in the directions of adaptive control, general control system, control/regulation system, etc., can solve the problems of influence and increase the difficulty of the controller, and achieve a small amount of calculation, simple structure, and guaranteed stability. Effect

Active Publication Date: 2022-03-29
HAINAN NORMAL UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the two-dimensional nature of the batch process, failures in the current batch are likely to affect the next batch or even many batches in the future.
Coupled with the existence of time lag in the batch process, it obviously increases the difficulty of controller design

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 2D Predictive Fault-Tolerant Control Method for Batch Processes with Time Delay and Disturbance
  • 2D Predictive Fault-Tolerant Control Method for Batch Processes with Time Delay and Disturbance
  • 2D Predictive Fault-Tolerant Control Method for Batch Processes with Time Delay and Disturbance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0120] The present invention considers the following nonlinear continuous stirred tank for simulation, including the following two differential equations

[0121]

[0122]

[0123] Among them, C A is the concentration of A in the irreversible reaction process (A→B); T is the temperature of the reactor; T j is the temperature of the cooling stream. as an operating variable, k 0 =2.53×10 19 (1 / molmin), E / R=13,500(K), T(0)=25(℃), C A (0)=0.9 (mol / L).

[0124]For system identification, a transfer test at 26°C with a sampling interval of 1 was performed. Therefore, we can get the transfer model

[0125] Assuming the system is second order, a least squares method with transitive inputs and transitive responses is used. x 1 (t,k)=y(t,k) x 2 (t,k)=-0.0013y(t-1,k)+0.0425u(t-1,k). The transfer function can be transformed into the following state-space model:

[0126]

[0127] After discretization, the time-delay extension model of the above state-space model can...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The 2D predictive fault-tolerant control method for batch processes with time lag and disturbance belongs to the advanced control field of industrial processes. The method includes the following steps: Step 1. For the batch process with time lag, the controlled object is established based on the state space model The two-dimensional system model with faults; Step 2. For the 2D closed-loop state-space model based on the 2D-Roesser model, establish a sufficient condition for this model to have invariant set characteristics, and give an update law gain K design. The invention is based on the given intermittent process with multiple time lags, uncertainties and actuator failures, defines state error and output error, and establishes a novel error model equivalently having multiple time lags. It can update the control law in real time, improve the tracking performance and anti-interference performance of the control method in the batch process, ensure the optimal control performance of the system, and realize efficient production.

Description

technical field [0001] The invention belongs to the field of advanced control of industrial processes, and relates to a 2D predictive fault-tolerant control method for intermittent processes with time lag and disturbance. Background technique [0002] With the rapid development of science and technology and the continuous improvement of the level of automation, industrial production gradually presents the characteristics of small scale, multiple varieties, and high added value. The intermittent process has once again aroused people's attention. At present, batch production technology has been widely used in many fields such as manufacturing, pharmaceuticals, and metal synthesis. As the operating techniques and processes of industrial production become more and more complex, the possibility of system failure increases. At the same time, time lag is common in industrial processes. The existence of factors such as failures and time lags has gradually become an obstacle to the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04G05B13/02
CPCG05B13/048G05B13/042G05B13/0265
Inventor 王立敏宋将罗卫平
Owner HAINAN NORMAL UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com