Nonlinear model-based control using second-order Volterra models

نویسندگان

  • Francis J. Doyle
  • Babatunde A. Ogunnaike
  • Ronald K. Pearson
چکیده

A nonlinear controller synthesis scheme is presented that retains the original spirit and characteristics of conventional (linear) model predictive control (MPC) while extending its capabilities to nonlinear systems. The scheme employs a Volterra model-a simple and convenient nonlinear extension of the linear convolution model employed by conventional MPC-and gives rise to a controller composed of a conventional linear controller augmented by an auxiliary loop of nonlinear ‘corrections’. Simulation case studies involving two different examples representative of the typical spectrum of nonlinear behavior in real chemical processes-an industrial polymerization reactor and an isothermal reactor exhibiting inverse response-are used to demonstrate the practical utility of the control scheme and to evaluate its performance.

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عنوان ژورنال:
  • Automatica

دوره 31  شماره 

صفحات  -

تاریخ انتشار 1995