Chaotic swarm intelligent optimization high-precision optimal soft measuring instrument for propylene polymerization production process

Abstract

The invention discloses a chaotic swarm intelligent optimization high-precision optimal soft measuring instrument for a propylene polymerization production process. The instrument comprises a propylene polymerization production process, a field intelligent instrument, a control station, a DCS database storing data, an optimal soft measuring model optimizing a chaotic least square support vector machine based on an improved gravitational search algorithm, and a melt index soft measurement value display, wherein the field intelligent instrument and the control station are connected with the propylene polymerization production process and are connected with the DCS database, the optimal soft measuring mode is connected with the DCS database and the soft measurement value display, and the optimal soft measuring model optimizing the chaotic least square support vector machine based on the improved gravitational search algorithm comprises a data preprocessing module, a chaotic analysis module, a least square support vector machine module, a model update module, and an improved gravitational search algorithm optimization module. The optimal soft measuring instrument for the propylene polymerization production process realizes swarm intelligent optimization, high-precision chaos forecast.

Description

technical field [0001] The invention relates to a chaotic swarm intelligent search and high-precision optimal soft measuring instrument and method, in particular to an optimal soft measuring instrument for propylene polymerization process based on an improved gravitational search algorithm to optimize a chaotic least squares support vector machine. Background technique [0002] Polypropylene is a thermoplastic resin produced by propylene polymerization. The most important downstream product of propylene, 50% of the world's propylene and 65% of my country's propylene are used to make polypropylene. It is one of the five general-purpose plastics. are closely related to daily life. Polypropylene is the fastest growing general-purpose thermoplastic resin in the world, second only to polyethylene and polyvinyl chloride in total. In order to make my country's polypropylene products have market competitiveness, develop impact copolymer products, random copolymer products, BOPP and ...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the current existing propylene polymerization production process, such as low measurement accuracy and the influence of artificially selected parameters, the purpose of the present invention is to provide a chaos forecasting, crowd intelligence optimization, high-precision optimal software for propylene polymerization production process gauge

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