A Process Predictive Optimal Control Method for Process Industry
A technology of predictive optimization and control methods, applied in the field of automation, can solve the problems of limited revenue, low production efficiency, and high cost of enterprises, and achieve the effect of improving control performance and precise variation range
Active Publication Date: 2020-12-18
HANGZHOU DIANZI UNIV
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The process manufacturing industry represented by the petrochemical and energy industries urgently needs new kinetic energy for industrial transformation and development. There are some problems that need to be solved urgently in the existing manufacturing model, such as low production efficiency and high cost, which limit the income of enterprises.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0054] Take the tidal current generation process as an example:
[0055] Here, the blade pitch angle control of the tidal current power generation device in the tidal current power generation process is taken as an example to describe, and the adjustment means is to control the valve opening of the hydraulic valve.
[0056] Step 1. Establish the state space model of the tidal current power generation device, specifically:
[0057] 1-1. First collect the real-time operating data of the tidal current power generation device, establish a process model, and describe the process with disturbance as the following form:
[0058]
[0059] in,
[0060]
[0061] Where k is the system period and t is the system time, △ is the backward difference operator, x(t+1,k), x(t-1,k) are the state of k period t+1, t-1 respectively, x (t,k) is the state at time t of period k, y(t+1,k) is the blade pitch angle at time t+1 of period k, u(t,k) and u(t-1,k) are k The opening of the system valv...
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
Login to View More Abstract
The present invention discloses a process industry process prediction optimization control method. For defects of a process industry current control technology and obtained control performances, multi-item system error forms are integrated to improve the control performance of the system and control performances of the period process industry. Through the prediction control technology, in a condition having constraint for output and input control, the control effect of the process industry is optimized, and an optimal controller of the system is obtained through a selected system target function. In a new control structure, the change range of the controller is more accurate to improve the control performances of the control, ensure the optimal state of the operation of the control deviceand allow the process parameters of the process industry to be strictly controlled. Through the improved technical means, the control output is strictly controlled in a safe range to avoid damaging ofthe device caused by excessive output and excessive torsion of a machine so as to obtain a better control effect.
Description
technical field [0001] The invention belongs to the technical field of automation, and relates to a method for predicting and optimizing control of a flow industry process. Background technique [0002] The process industry mainly involves petroleum, chemical industry, energy, environmental protection water treatment and other fields. It is the pillar of a country's national economy and an important supporting force for the country's sustained economic growth. The technological advances in operation, management and control of the process industry are also closely related to people's social life. The process manufacturing industry represented by the petrochemical and energy industries urgently needs new kinetic energy for industrial transformation and development. There are some problems that need to be solved urgently in the existing manufacturing model, such as low production efficiency and high cost, which limit the income of enterprises. Therefore, with the development o...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 胡德文侯平智张日东
Owner HANGZHOU DIANZI UNIV