A multi-variable control method and device
A multi-variable control and controlled variable technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems of changes, complicated setting of control variable weights, and unsatisfactory controller control effect, and achieve increased Constraints, the effect of enhancing the effect
Active Publication Date: 2021-11-16
杭州希亚智新科技有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Since the number of controlled variables is far greater than the number of control variables, and the weight setting of control variables is complicated and the weight value may change due to changes in various related factors, the control effect of the controller is not ideal.
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
[0063] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0064] One of the core concepts of the embodiments of the present invention is to propose a multivariable control method and device based on the economic optimization performance index of the controlled variable, increase the constraints of the economic index, and realize the setting of the economic optimization direction of each controlled variable. An economic optimization level is added to each optimization direction. When the level is the same, the priority is determined by weight, and the importance is divided directly according to the different control requirements of each controlled variable. The importance of each controlled variable is based on the safety, stability, and economic The methods are arranged from large to smal...
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
An embodiment of the present invention provides a multivariable control method, including: collecting the steady-state gain matrix G of the rectification process object, and establishing the model gain relationship between the control variable and the controlled variable; establishing the control variable and the controlled variable in the steady state Process constraints in optimization; economic constraints are added to the process constraints; based on the slack variables of economic constraints, the steady-state optimization objective function of economic optimization indicators is established; process constraints, economic constraints and steady-state optimization objective functions Combined to form a steady-state optimization expression based on the performance index function of the controlled variable; set the priority level of the economic constraints; solve according to the order of the priority level to obtain the optimal operating point of the control variable, and according to the steady-state gain matrix of the process object G calculates the optimal operating point of the controlled variable. The economic optimization direction setting of the controlled variable is realized, and the effect of optimal control is improved.
Description
technical field [0001] The invention relates to the technical field of rectification system control, in particular to a multivariable control method and a multivariable control device. Background technique [0002] Predictive Control (MPC) is a general term for a class of model-based control algorithms, and it is a control algorithm summed up from practice. In recent years, predictive control has become an industrial standard for solving complex and constrained multivariable control problems in the process industry, and is widely used in petroleum, chemical, paper, air separation and metallurgy and other fields. The core technical value of predictive control is to identify the state of the industrial process through the built-in process model, reduce the fluctuation deviation of the controlled variable (CV) of the process system, find the effective boundary of the process through the mathematical programming method, and promote the system to perform card edge optimization, a...
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 张玉梅
Owner 杭州希亚智新科技有限公司