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Predictive fuzzy control optimized control method for waste plastic oil refining cracking furnace chamber pressure

A fuzzy control and pressure control technology, applied in the field of automation, can solve the problems of poor control performance, danger, and inability to meet the control accuracy and product quality requirements of coking oven temperature control

Inactive Publication Date: 2016-07-27
HANGZHOU DIANZI UNIV
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AI Technical Summary

Problems solved by technology

In the actual industrial control process, due to interference, nonlinear and other factors, the control performance of the traditional PID coking furnace temperature control is poor, and it often cannot meet the increasingly strict control accuracy and product quality requirements in the actual chemical process. More advanced, control Algorithms with better performance are still to be studied
Oil refining cracking furnace is an important device in the petrochemical production process, in which the furnace pressure has a very important impact on the cracking process, too high furnace pressure may bring danger, and too low furnace pressure will lead to low cracking efficiency

Method used

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  • Predictive fuzzy control optimized control method for waste plastic oil refining cracking furnace chamber pressure
  • Predictive fuzzy control optimized control method for waste plastic oil refining cracking furnace chamber pressure
  • Predictive fuzzy control optimized control method for waste plastic oil refining cracking furnace chamber pressure

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Embodiment Construction

[0052] Take the furnace pressure process control of waste plastic refining cracking furnace as an example:

[0053] The furnace pressure of the cracking furnace is an important parameter in the cracking process of the cracking furnace, and the adjustment method adopts the opening of the flue baffle, see figure 1 .

[0054] Step 1. Establish the model of the controlled object through the real-time step response data of the cracking furnace furnace pressure object. The specific method is:

[0055] 1.1 Keep the proportional integral differential controller of the process in the manual operation state, operate the dial to make the output have a step change, record the output value of the actual process of the instrument, and record the actual process output value specifically is:

[0056] y p * ( k ) = y p ( k...

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Abstract

The invention discloses a predictive fuzzy control optimized control method for waste plastic oil refining cracking furnace chamber pressure.A chamber pressure object model is set up based on step response data of a chamber pressure object of a cracking furnace, and basic object characteristics are mined; corresponding parameters of a PID controller are set according to characteristics of predictive function control; PID control is conducted on cracking furnace chamber pressure.While good predictive function control and fuzzy control performance is inherited, it is ensured that the form is simple, and requirements of the actual industrial process are met.

Description

technical field [0001] The invention belongs to the technical field of automation, and relates to a proportional integral differential (PID) control method for furnace pressure of a waste plastic oil refinery cracking furnace optimized by predictive fuzzy control. Background technique [0002] The chemical process is an important part of my country's process industry process, and its requirement is to supply qualified industrial products to meet the needs of my country's industry. In the current industrial control, because the traditional PID control technology has the advantages of simple structure, good robustness, and easy operation, it has been widely used in the industry. In the actual industrial control process, due to interference, nonlinear and other factors, the control performance of the traditional PID coking furnace temperature control is poor, and it often cannot meet the increasingly strict control accuracy and product quality requirements in the actual chemica...

Claims

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Application Information

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IPC IPC(8): G05B17/02
CPCG05B13/042
Inventor 王玉中张日东张俊锋
Owner HANGZHOU DIANZI UNIV
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