U-Model Based Nonlinear Control : A New Control-Oriented Approach

ISBN-13: 9783639226980 / Angielski / Miękka / 2010 / 124 str.

Naveed Razzaq Butt

Opis

Adaptive tracking of nonlinear dynamic plants is currently an important area of research. The main difficulty being felt by the research community is the lack of a general modelling framework that can facilitate synthesis of a simplistic control law, while being capable of providing accurate approximation of nonlinear systems. The aim of this study is to alleviate that problem by introducing a novel technique based on the control-oriented U- Model for the adaptive tracking of a wide range of stable nonlinear dynamic plants using only input- output data. The overall scheme is based on the robust internal model control (IMC) structure wherein different internal models, using nonlinear adaptive filtering and higher-order neural networks, are used. In each case, the U-Model equivalence of the internal model is developed and a simplistic control law based on polynomial root-solving is synthesized. The effectiveness of the proposed adaptive schemes is demonstrated through simulations and real-time applications to a variety of nonlinear plants.

O autorze

Naveed R. Butt is a doctoral candidate at the department of Mathematical Statistics at Lund University, Sweden. He earned his BS degree in Engineering Sciences from the GIK Institute, Pakistan and a Master's degree in Systems Engineering from KFUPM, Saudi Arabia. His research interests include statistical signal processing and nonlinear control