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Natural gas absorption tower desulfuration process control method based on RBF and GDHP

A technology of process control and absorption tower, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems of low control precision, large time lag, unstable control system, etc., and achieve high control precision and guaranteed effects, effects that improve stability and control precision

Active Publication Date: 2018-02-16
CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0005] This application provides a natural gas absorption tower desulfurization process control method based on RBF and GDHP to solve the problems of low control accuracy, large time lag, and unstable control system in the current natural gas absorption tower desulfurization process control technology to ensure natural gas desulfurization Effect

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  • Natural gas absorption tower desulfuration process control method based on RBF and GDHP
  • Natural gas absorption tower desulfuration process control method based on RBF and GDHP
  • Natural gas absorption tower desulfuration process control method based on RBF and GDHP

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Embodiment Construction

[0032] This application provides a method for controlling the desulfurization process of a natural gas absorption tower based on RBF and GDHP. The principle block diagram of the invention is as follows figure 1 shown. With reference to the existing technical means, the technical solution provided by this application has the technical effects or advantages: the method adopts an intelligent algorithm for the desulfurization process control of the natural gas absorption tower, has high control precision, can reduce the response time of the control system, and can Real-time automatic adjustment of control parameters improves the stability of the control system and truly achieves the purpose of real-time control.

[0033] In order to better understand the above technical solutions, the following will be combined with the description attached Figure 2-7 As well as specific implementation manners, the above technical solutions are described in detail.

[0034] First enter step 1: ...

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Abstract

The invention provides a natural gas absorption tower desulfuration process control method based on RBF and GDHP. The method comprises the steps: carrying out the modeling of a desulfuration process of an absorption tower through a BP neural network, taking a model as a controlled object to carrying out a control simulation experiment of the desulfuration process of the absorption tower, continuously updating an optimization weight according to a control error and a performance index function, and obtaining a new control signal till achieving the optimal control of the desulfuration process. The desulfuration process of the absorption tower is complex, and is uncertain, nonlinear, strong in coupling performance and dynamic, so a precise mathematic model is difficult to build, and the control difficulty is larger. Aiming at the problems that a conventional absorption tower desulfuration process control method is low in control precision, is large in time lag and is not stable, the invention proposes the method, and the method guarantees the stability and control precision of a control system, also reduces the response time, and truly achieves the real-time control of the desulfuration process of the absorption tower.

Description

technical field [0001] The invention relates to a desulfurization process control technology of a natural gas absorption tower, in particular to a natural gas absorption tower desulfurization process control method based on the combination of RBF and global quadratic heuristic dynamic programming (GDHP). Background technique [0002] As a high-quality, clean energy and chemical raw material, natural gas is easy to use and has high comprehensive economic benefits. my country has abundant natural gas resources, but about 30% of the natural gas contains a large amount of sulfur, of which H 2 Natural gas reserves with S content greater than 1% account for 1 / 4 of the total reserves. h 2 The existence of S will not only cause corrosion of equipment and pipelines, endanger human health, but also pollute the environment with its combustion products. Therefore, in the natural gas desulfurization process, H 2 S content control is particularly important. [0003] The natural gas d...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 汪波刘华超周伟甘丽群李晓亮易军李太福
Owner CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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