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Method suitable for online evaluation of global operation condition in continuous production process

A technology of production process and operation status, applied in the direction of program control, comprehensive factory control, comprehensive factory control, etc., to achieve the effect of accurate evaluation, accurate global operation status evaluation results, and elimination of deviations

Active Publication Date: 2019-11-15
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology that can only analyze the single-level operation status of the production process, and provide a method suitable for online evaluation of the global operation status of the continuous production process

Method used

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  • Method suitable for online evaluation of global operation condition in continuous production process
  • Method suitable for online evaluation of global operation condition in continuous production process
  • Method suitable for online evaluation of global operation condition in continuous production process

Examples

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Embodiment 1

[0066] Taking the hydrocracking process of an oil refinery in my country as an example, combined with figure 1 , figure 2 Shown, a kind of method that is applicable to the continuous production process global operating state online evaluation that proposes in the present invention is described in detail as follows:

[0067] The first step is to divide the continuous production process of the hydrocracking process into planning and scheduling layer, real-time optimization layer and process control layer from top to bottom, and determine the operation indicators of each layer; the process control layer, real-time optimization layer and planning and scheduling layer There is a bottom-up feedback relationship. The whole process of hydrocracking process operation optimization and control is as follows: image 3 As shown, it mainly involves three levels: planning and scheduling layer, real-time optimization layer and process control layer. The planning and scheduling layer is ba...

Embodiment 2

[0114] Taking the residual oil hydrogenation process of a refinery in my country as an example, a method for online evaluation of the global operating status of a continuous production process proposed in the present invention is described in detail as follows:

[0115] In the first step, the residue hydrogenation process is divided into planning and scheduling layer, real-time optimization layer and process control layer from top to bottom, and the operation indicators of each layer are determined; there are Bottom-up feedback relationship. The whole process of operation optimization and control of residual oil hydrogenation process is as follows: Figure 12 As shown, it mainly involves three levels: planning and scheduling layer, real-time optimization layer and process control layer. The planning and scheduling layer is based on the target of monthly or quarterly comprehensive production indicators (light oil yield, energy consumption per unit energy factor, etc.) Perform...

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Abstract

The invention belongs to the field of real-time optimization control of the industrial production and discloses a method suitable for online evaluation of the global operation condition in the continuous production process. The continuous production process is divided into a planned scheduling layer, a real-time optimization layer and a process control layer from top to bottom,online evaluation ofcross-layer collaborative operation conditions of three comprehensive layers is realized by analyzing feedback influence of operation performance of the process control layer on operation performanceof the real-time optimization layer, analyzing feedback influence of operation performance of the real-time optimization layer on operation performance of the planned scheduling layer and distinguishing operation condition evaluation standards under different inlet work conditions, information transfer and feedback between operation conditions of each layers are integrated, the global operation condition can be more accurately evaluated, and 'non-optimal' cause tracing of the operation conditions is performed.

Description

technical field [0001] The invention relates to the field of real-time optimal control of industrial processes, in particular to a method suitable for on-line assessment of global operating conditions in continuous production processes. Background technique [0002] The real-time optimization control method is an effective means to solve the process optimization and control of complex process industries. It optimizes economic benefits under the premise of comprehensively considering economic information, device physical constraints and device degrees of freedom. Generally, by combining loop control with process operation optimization, a two-layer structure is adopted. The upper layer optimizes economic performance indicators through planning and scheduling to generate the set value of the bottom control loop, and the bottom layer makes the controlled variable track the set value through the controller, so as It is possible to make the process run in an economically optimized...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCG05B19/41875G05B19/41885G05B2219/32339Y02P90/02
Inventor 王雅琳李灵袁小锋孙备吴东哲王思哲阳春华
Owner CENT SOUTH UNIV
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