Bifurcation control and eigenstructure assignment in continuous solution polymerization of vinyl acetate

doi:10.1016/j.cjche.2015.03.009

›› 2015, Vol. 23 ›› Issue (9): 1523-1529.DOI: 10.1016/j.cjche.2015.03.009

• 过程系统工程与过程安全 • 上一篇下一篇

Bifurcation control and eigenstructure assignment in continuous solution polymerization of vinyl acetate

Nan Zhang, Tong Qiu, Bingzhen Chen

Institute of Process Systems Engineering, Tsinghua University, Beijing 100084, China

收稿日期:2014-09-09 修回日期:2015-01-30 出版日期:2015-09-28 发布日期:2015-10-24
通讯作者: Bingzhen Chen
基金资助:
Supported by the National Basic Research Programme (2012CB720500) and the National Natural Science Foundation of China (21306100).

Bifurcation control and eigenstructure assignment in continuous solution polymerization of vinyl acetate

Nan Zhang, Tong Qiu, Bingzhen Chen

Institute of Process Systems Engineering, Tsinghua University, Beijing 100084, China

Received:2014-09-09 Revised:2015-01-30 Online:2015-09-28 Published:2015-10-24
Supported by:
Supported by the National Basic Research Programme (2012CB720500) and the National Natural Science Foundation of China (21306100).

摘要/Abstract

摘要： Themajor difficulty in achieving good performance of industrial polymerization reactors lies in the lack of understanding of their nonlinear dynamics and the lack ofwell-developed techniques for the control of nonlinear processes, which are usually accompanied with bifurcation phenomenon. This work aims at investigating the nonlinear behavior of the parameterized nonlinear system of vinyl acetate polymerization and furthermodifying the bifurcation characteristics of this process via a washout filter-aid controller, with all the original steady state equilibria preserved. Advantages and possible extensions of the proposed methodology are discussed to provide scientific guide for further controller design and operation improvement.

关键词: Vinyl acetate polymerization, Nonlinear dynamics, Bifurcation control, Eigenvalue assignment, Washout filters

Abstract: Themajor difficulty in achieving good performance of industrial polymerization reactors lies in the lack of understanding of their nonlinear dynamics and the lack ofwell-developed techniques for the control of nonlinear processes, which are usually accompanied with bifurcation phenomenon. This work aims at investigating the nonlinear behavior of the parameterized nonlinear system of vinyl acetate polymerization and furthermodifying the bifurcation characteristics of this process via a washout filter-aid controller, with all the original steady state equilibria preserved. Advantages and possible extensions of the proposed methodology are discussed to provide scientific guide for further controller design and operation improvement.

Key words: Vinyl acetate polymerization, Nonlinear dynamics, Bifurcation control, Eigenvalue assignment, Washout filters

Nan Zhang, Tong Qiu, Bingzhen Chen. Bifurcation control and eigenstructure assignment in continuous solution polymerization of vinyl acetate[J]. , 2015, 23(9): 1523-1529.

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Bifurcation control and eigenstructure assignment in continuous solution polymerization of vinyl acetate

Bifurcation control and eigenstructure assignment in continuous solution polymerization of vinyl acetate

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