WSEAS Transactions on Fluid Mechanics
Print ISSN: 1790-5087, E-ISSN: 2224-347X
Volume 11, 2016
Adaptive Control of Fluid Inside CSTR Using Continuous-Time and Discrete-Time Identification Model and Different Control Configurations
Authors: ,
Abstract: An adaptive control is a kind of modern control methods with great theoretical background and various modifications. This control approach could be used for system with negative control properties such as nonlinearity, non-minimum phase behaviour etc. The adaptive control in this paper is based on the recursive identification of the external linear model as a linear representation of the originally nonlinear system. The control synthesis is based on the polynomial approach together with the spectral factorization and the pole-placement method. The identification model in the continuous-time uses differential filters and so called delta-models in the discrete-time. There were tested also two types of control configurations with the one degree-of-freedom (1DOF) that has controller only in the feedback part and with the two degrees-of-freedom (2DOF) where the controller is separated into two parts the first is in the feedback and the second is feedforward part of the control loop. Paper shows usability of this control approach by the simulations on the mathematical model of the continuous stirred-tank reactor with the cooling in the jacket as a typical nonlinear system with lumped parameters.
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Keywords: Simulation, Mathematical Model, Adaptive control, Continuous-time model, Delta-model, Continuous Stirred-tank Reactor, 1DOF, 2DOF
Pages: 81-90
WSEAS Transactions on Fluid Mechanics, ISSN / E-ISSN: 1790-5087 / 2224-347X, Volume 11, 2016, Art. #10