A vine-copulas-based industrial production simulation scene generator and scene generation method

A technology of industrial production and generator, applied in the field of vine-copulas-based industrial production simulation scene generator

Active Publication Date: 2020-09-29
ZHEJIANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In summary, there are still many problems in the production scene generation in the industrial field and its application in the simulation system. How to reasonably and effectively obtain the production data scene set is an urgent problem to be solved.

Method used

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  • A vine-copulas-based industrial production simulation scene generator and scene generation method
  • A vine-copulas-based industrial production simulation scene generator and scene generation method
  • A vine-copulas-based industrial production simulation scene generator and scene generation method

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Embodiment Construction

[0075] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0076] A typical TE production process is selected for the industrial production process in this embodiment. The Tennessee-Eastman Process (TennesseeEastman, TE) process was created by Eastman Chemical Company to provide a realistic industrial process for evaluating process control and monitoring methods. The process is based on a simulation of a real industrial process and has been widely used in fault detection and diagnosis as a data source for comparing various methods.

[0077] established as figure 1 As shown in the vine-copulas-based industrial production process simulation scenario generator, its data acquisition module collects TE production scenario data and stores them in the initial scenario database module. The feature types and quantities of data in the initial scene database module are shown in Table 1:

[0078] Table 1 Data...

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Abstract

The invention provides an industrial production simulation scene generator and a scene generation method based on vine-copulas. The industrial production simulation scene generator comprises a scene data acquisition module, a scene preprocessing module, a Vine-copulas creation module and a scene generation module. In the scene generation method, the existing scene data is acquired from an initialscene database module, by preprocessing of a scene clustering module, a feature standardization module and a feature dimension reduction module, and so on, a scene generation model is created througha vine copula method through a model fitting module, a goodness detection module and a binary copula model library module, and the scene needed is generated through a scene sampling module and an inverse mapping module. The scene generator provided by the invention can be embedded into an emulation system to be used as an organization module of a production simulation system and used for configuration operations of the production simulation system. The scene generated by the method provided by the invention can be used for scene emulation, and also can provide reliable original data for otherexperiments and researches to perform targeted study.

Description

technical field [0001] The invention relates to the field of industrial production scene generation, in particular to a vine-copulas-based industrial production simulation scene generator and a scene generation method. Background technique [0002] The industrial industry is characterized by technology-intensive, highly continuous and complex operations, product diversity, and high-temperature, high-pressure, flammable and explosive production processes. Its research relies on production simulation technology. Production simulation methods mainly include deterministic production simulation methods and stochastic production simulation methods, among which stochastic production simulation methods will incorporate uncertain factors in production into research. Multi-scenario is one of the methods of uncertainty research. In the production simulation, through the simulation of multiple scenarios, the boundary values ​​and weak links of the system can be identified, and the forw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 应天裕孙燕琳冯毅萍宋自用彭泽栋林雪燕凤伟季玉胡宪肖顺立
Owner ZHEJIANG UNIV
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