Journal ArticleDOI
A loop-shaping design procedure using H/sub infinity / synthesis
Duncan McFarlane,Keith Glover +1 more
Reads0
Chats0
TLDR
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
More filters
Journal ArticleDOI
Overcoming fundamental limitations of wind turbine individual blade pitch control with inflow sensors
TL;DR: This paper presents a simple solution based upon a local blade inflow measurement that enables the implementation of an additional cascaded feedback controller that overcomes the existing IPC performance limitation and hence yields significantly improved load reductions.
Proceedings ArticleDOI
Loop shaping for robust performance using Rbode plot
Lu Xia,William C. Messner +1 more
TL;DR: In this article, a method for translating the robust performance criterion into contours on the open loop Rbode plot of a compensated SISO system so that robust controllers can be directly synthesized with classical loop shaping is presented.
Journal ArticleDOI
Analysis and synthesis of nested feedback systems
K.M. Halsey,Keith Glover +1 more
TL;DR: Two synthesis algorithms are compared with a sequential approach in the design of a cascade-limiter for the Quanser Helicopter experiment and it is possible to demonstrate in what sense the new compensators are superior to the one obtained by the sequential method.
Journal ArticleDOI
A Robust Control Framework for Linear, Time-Invariant, Spatially Distributed Systems
TL;DR: It is shown that a frequency-domain representation, in the form of a graph symbol, exists for every LTI, spatially distributed system under very mild assumptions, and investigates fundamental issues of feedback control such as feedback stability and robust stability to plant and/or controller uncertainty quantified in the gap-metric.
References
More filters
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.