Stabilization of stochastic operating modes in the flow reactor

International Conference "Structural and Phase Transformations in Materials: Theory, Computer Modelling and Experiment"

材料科学;计算机科学

Bashkirtseva, I.^1

Ural Federal University, Lenina 51, Ekaterinburg

620000, Russia^1

关键词: Control approach;    Flow reactors;    Large amplitude;    Operating modes;    Random disturbances;    Stable equilibrium;    Stochastic flows;    Stochastic oscillations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/192/1/012005/pdf
DOI  :  10.1088/1757-899X/192/1/012005

来源: IOP

【 摘 要 】

A conceptual multistable model of the flow reactor proposed by Volter and Salnikov is studied in the presence of random disturbances. A stochastic excitability of this system, even in a zone of stable equilibria, is explained by the high stochastic sensitivity. Such high stochastic sensitivity of the equilibrium can be a basic reason of the noise-induced destruction of the operating mode. For the stabilization of the stochastic flow reactor, a theory of the synthesis of the assigned low stochastic sensitivity is suggested. It is shown how to use this control approach and construct an appropriate regulator which suppresses unwanted large-amplitude stochastic oscillations and provide a proper operation of the flow reactor.