Journal ArticleDOI
A loop-shaping design procedure using H/sub infinity / synthesis
Duncan McFarlane,Keith Glover +1 more
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In this article, a design procedure is introduced which incorporates loop shaping methods to obtain performance/robust stability tradeoffs, and a particular H/sub infinity / optimization problem to guarantee closed-loop stability and a level of robust stability at all frequencies.Abstract:
A design procedure is introduced which incorporates loop shaping methods to obtain performance/robust stability tradeoffs, and a particular H/sub infinity / optimization problem to guarantee closed-loop stability and a level of robust stability at all frequencies. Theoretical justification of this technique is given, and the effect of loop shaping on closed-loop behavior is examined. The procedure is illustrated in a controller design for a flexible space platform. >read more
Citations
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Journal ArticleDOI
Robust loop shaping–fuzzy gain scheduling control of a servo-pneumatic system using particle swarm optimization approach
TL;DR: A new technique called robust loop shaping–fuzzy gain scheduled control (RLS–FGS) is proposed to design an effective nonlinear controller for a long stroke pneumatic servo system and is better than the classical gain scheduled PID controllers tuned by pole placement and the conventional fuzzy PID controller tuned by ISE method in terms of robust performance.
Journal ArticleDOI
H∞ Control of the NRC Bell 205 Fly-by-Wire Helicopter
Ian Postlethwaite,A. Smerlas,D. J. Walker,Arthur W. Gubbels,S. W. Baillie,M. E. Strange,J. Howitt +6 more
Proceedings ArticleDOI
Two-degree-of-freedom formulation of vehicle handling improvement by active steering
S. Mammar,V.B. Baghdassarian +1 more
TL;DR: Presents coprime factors based two-degree-of freedom H/sub /spl infin// control for vehicle handling improvement and allows the separate processing of the robust stabilization problem and reference signal or disturbance rejection.
Journal ArticleDOI
Genetic-Algorithm-Based Fixed-Structure Robust H∞ Loop-Shaping Control of a Pneumatic Servosystem
TL;DR: An algorithm a genetic-algorithm-based fixed-structure robust H∞ loop-shaping control for designing the robust controller and results of experiments demonstrate the advantages of a simple structure and robustness against parameters changing.
Journal ArticleDOI
Two-degree-of-freedom controller design for an ill-conditioned distillation process using /spl mu/-synthesis
TL;DR: A two degree of freedom controller, which satisfies all control objectives of the CDC problem, is designed using /spl mu/-synthesis using the structured singular value framework.
References
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Book
Linear Optimal Control Systems
Huibert Kwakernaak,Raphael Sivan +1 more
TL;DR: In this article, the authors provide an excellent introduction to feedback control system design, including a theoretical approach that captures the essential issues and can be applied to a wide range of practical problems.
Journal ArticleDOI
Multivariable feedback design: Concepts for a classical/modern synthesis
John Doyle,Gunter Stein +1 more
TL;DR: This paper presents a practical design perspective on multivariable feedback control problems and generalizes known single-input, single-output (SISO) statements and constraints of the design problem to multiinput, multioutput (MIMO) cases.
Journal ArticleDOI
Feedback and optimal sensitivity: Model reference transformations, multiplicative seminorms, and approximate inverses
TL;DR: In this article, the problem of sensitivity reduction by feedback is formulated as an optimization problem and separated from the problems of stabilization, and the feedback schemes obtainable from a given plant are parameterized.
Analysis of feedback systems with structured uncertainties
TL;DR: In this article, a general approach for analysing linear systems with structured uncertainty based on a new generalised spectral theory for matrices is introduced, which naturally extend techniques based on singular values and eliminate their most serious difficulties.
Book
Multivariable Feedback Design
TL;DR: In this article, a comprehensive and unified view of modern multivariate feedback theory and design is presented, where balancing techniques with theory, the objective throughout is to enable the feedback engineer to design real systems.