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Data driving-based cut tobacco baking and head drying process FNN-ARX modeling method

A data-driven, modeling method technology, applied in the field of shredded tobacco processing, can solve problems such as dry ends, poor control performance, and inaccurate mechanism models, and achieve the effect of improving the optimization process and facilitating design

Active Publication Date: 2019-12-13
CHANGSHA UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Usually, the control performance is not good due to the inaccuracy of the mechanism model, and it will cause the phenomenon of "dry head"

Method used

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  • Data driving-based cut tobacco baking and head drying process FNN-ARX modeling method
  • Data driving-based cut tobacco baking and head drying process FNN-ARX modeling method
  • Data driving-based cut tobacco baking and head drying process FNN-ARX modeling method

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Embodiment

[0038] The schematic diagram of the drying process of the drying head of the HAUNI brand drum type thin plate drying machine aimed at by the present invention is as follows: figure 1 shown. In this specific embodiment, the blue drum rotates at a frequency of 0.08 Hz, and the shredded tobacco is in contact with the high-temperature cylinder wall in the rotating cylinder to generate heat exchange and curling, so that the water evaporates and is discharged from the cylinder through the damper to reduce the tobacco smoke. The purpose of moisture content. When the inlet shredded tobacco flow rate is detected at detection point 2, the process of drying shredded tobacco in this embodiment begins, and when the moisture content of outlet shredded tobacco is detected at detection point 5 at a rate higher than 12.5%, the process of drying shredded tobacco in this embodiment ends , the duration of the whole process of drying silk drying head is 980 seconds. A data-driven FNN-ARX modelin...

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Abstract

The invention discloses a data driving-based cut tobacco baking and head drying process FNN-ARX modeling method. Aimed at the cut-tobacco baking and head drying process of a HAUNI brand drum-type thin-plate cut-tobacco drier, a data driving-based identification modeling and parameter optimization method is proposed. The method comprises the following steps of firstly adopting an FNN-ARX model constructed by fitting a function type coefficient of an autoregression model based on the fuzzy neural network to perform modeling on the cut tobacco baking process, and then using an improved variable projection algorithm to optimize the established FNN-ARX model parameters. The method in the invention can be effectively combined with a variable projection algorithm to carry out parameter separationoptimization, thereby greatly improving the optimization process of the algorithm; and the designed FNN-ARX model has the structural form of a pseudo linear model, and the design of a subsequent model-based advanced control algorithm can be facilitated.

Description

technical field [0001] The invention relates to the technical field of shredded tobacco processing in the tobacco industry, in particular to a data-driven modeling and parameter optimization method for the process of drying shredded tobacco with a drum shred dryer. Background technique [0002] Cigarette shred drying processing is a very important process in the cigarette production process. It is mainly to reduce the moisture content of shredded tobacco through baking shredded tobacco, so that the moisture content of shredded tobacco after baking is uniform, so as to meet the shredded tobacco technology of its brand cigarettes. standard. At present, the main equipment for the silk drying process in the tobacco factory's silk workshop is the silk drying machine, including: drum type silk drying machine and air flow type silk drying machine. The invention relates to a HAUNI drum-type thin-plate drying machine, which mainly uses steam as a heat source to heat the cylinder bod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/04G06N3/04
CPCA24B3/04G06N3/043
Inventor 周锋曹丽华朱培栋郭文明
Owner CHANGSHA UNIVERSITY