Control System Synthesis: A Factorization Approach Mathukumalli Vidyasagar

ISBN: 9781608456611

Published: June 1st 2011


344 pages


Control System Synthesis: A Factorization Approach  by  Mathukumalli Vidyasagar

Control System Synthesis: A Factorization Approach by Mathukumalli Vidyasagar
June 1st 2011 | Paperback | PDF, EPUB, FB2, DjVu, audiobook, mp3, ZIP | 344 pages | ISBN: 9781608456611 | 4.45 Mb

This book introduces the so-called stable factorization approach to the synthesis of feedback controllers for linear control systems. The key to this approach is to view the multi-input, multi-output (MIMO) plant for which one wishes to design a controller as a matrix over the fraction field F associated with a commutative ring with identity, denoted by R, which also has no divisors of zero.

In this setting, the set of single-input, single-output (SISO) stable control systems is precisely the ring R, while the set of stable MIMO control systems is the set of matrices whose elements all belong to R. The set of unstable, meaning not necessarily stable, control systems is then taken to be the field of fractions F associated with R in the SISO case, and the set of matrices with elements in F in the MIMO case. The central notion introduced in the book is that, in most situations of practical interest, every matrix P whose elements belong to F can be factored as a ratio of two matrices N, D whose elements belong to R, in such a way that N, D are coprime.

In the familiar case where the ring R corresponds to the set of bounded-input, bounded-output (BIBO)-stable rational transfer functions, coprimeness is equivalent to two functions not having any common zeros in the closed right half-plane including infinity. However, the notion of coprimeness extends readily to discrete-time systems, distributed-parameter systems in both the continuous- as well as discrete-time domains, and to multi-dimensional systems. Thus the stable factorization approach enables one to capture all these situations within a common framework.

This is a reprint of the book Control System Synthesis: A Factorization Approach originally published by M.I.T. Press in 1985.

Enter the sum

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