Robust Control of Batch Reactors

Bhat, Jayadeva; Chidambaram, M.; Madhavan, K.P.

doi:10.1080/00986449008940692

Cited by 17 publications

(3 citation statements)

References 5 publications

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“…The unforced zero dynamics (11) completely determines the zeros of (II), and conversely, the zeros of (II) completely determine the zero dynamics (11) up to a coordinate transformation. For this reason, it is the unforced zero dynamics that can provide an alternative to the concept of zeros in the sense that (11) and the roots of the numerator polynomial of the transfer function contain exactly the same information. Consideration of the forced zero dynamics can arise in situations where the input/output characteristics of the inverse are important in addition to its internal dynamics.…”

Section: T H Imentioning

confidence: 96%

“…For a linear system (II), the dynamics of its inverse is governed by the state equations of (9), i.e., "z? Depending on whether we wish to consider forced or unforced dynamics, we can accordingly define the zero dy- _^n-r_ _ur_ (10) is called the forced zero dynamics of (II)• The dynamic system ¿i Z (11) is called the unforced zero dynamics of (II) or simply the zero dynamics of (II).…”

Section: T H Imentioning

confidence: 99%

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Geometric methods for nonlinear process control. 1. Background

Kravaris¹,

Kantor²

1990

Ind. Eng. Chem. Res.

230

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Section: T H Imentioning

confidence: 96%

Section: T H Imentioning

confidence: 99%

Geometric methods for nonlinear process control. 1. Background

Kravaris¹,

Kantor²

1990

Ind. Eng. Chem. Res.

230

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“…The basic design of model reference nonlinear controller is presented by Liu (1967), Boye and Brogen (1986), Youcef and Ito (1987), Bartusiak et al (1988), Lee and Sullivan (1988), Adebekun and Schork (1989) and Bhat et al (1989). In the present work, the modified method of Youcef and Ito (1987) $uggekted by hat et al (1989) is applied to design a robust controller'for a continuous stirred.…”

Section: Introductionmentioning

confidence: 94%

Nonlinear Feedback Control of a CSTR

Bhat

Chidambaram

Madhavan

1991

Chemical Engineering Communications

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The design of a robust nonlinear feedback controller is analyzed for temperature control of continuous stirred tank reactors (CSTRs) which have strong nonlinearities and steady-state multiplicities. The present method treats the original nonlinear system as it is without transforming into an equivalent linear system. The controller is robust to modelling errors and random disturbances occurring in the system. The controller design is also analyzed for situation when the kinetics, activation energy and heat of reaction are unknown and also only limited state-variables measurements are available.

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A general simulation model of batch chemical reactors for thermal control investigations

et al. 1994

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This paper describes the development of a dynamic simulation model for stirred tank batch or semi-batch chemical reactors fitted with an alternative heating-cooling system. Heat and mass balances are established for the reactor and its jacket. Since the general purpose of our research is the thermal control of these reactors, special attention is devoted to the behaviour of the heating-cooling system. In this article, we are particularly concerned with an alternative system, i.e. different fluids at a constant temperature can be alternatively delivered to the jacket. The computer simulation programme is flexible, enabling simulation of a batch or semi-batch reaction vessel, ranging from a laboratory pilot plant to a full-scale production plant. A control algorithm is included which allows reactor operation with open or closed-loop temperature control. To demonstrate the good performance of the simulation model, experimental results are presented for both a pilot plant and an industrial reactor.

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Robust Control of Batch Reactors

Cited by 17 publications

References 5 publications

Geometric methods for nonlinear process control. 1. Background

Geometric methods for nonlinear process control. 1. Background

Nonlinear Feedback Control of a CSTR

A general simulation model of batch chemical reactors for thermal control investigations

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