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Example of exact trade-offs in linear controller design
Linear time-invariant controller robust controller linear quadratic gaussian the numerical calculation
2015/8/13
The design of a linear time-invariant controller for a given linear-time-invariant plant, like any engineering design, involves tradeoff among many desirable qualities, such as fast response to comman...
Linear controller design: Limits of performance via convex optimization
Linear controller design convex optimization linear control system the convex optimization algorithm the controller the transfer matrix
2015/8/12
In this tutorial, an approach to the analysis and design of linear control systems based on numerical convex optimization over closed-loop maps is presented. Convexity makes numerical solution effecti...
Low-authority controller design via convex optimization
Controller design system characteristic values of perturbation theory design sparse actuators and sensors
2015/8/11
In this paper we address the problem of low-authority controller (LAC) design. The premise is that the actuators have limited authority, and hence cannot significantly shift the eigenvalues of the sys...
Controller coefficient truncation using Lyapunov performance certificate
Delete coefficient linear controller coefficient of linear matrix inequality lmi the numerical values
2015/8/7
We describe a method for truncating the coefficients of a linear controller while guaranteeing that a given set of relaxed performance constraints is met. Our method sequentially and greedily truncate...
Topology Independent Controller Design for Networked Systems
Networked Systems Controller Design
2015/6/19
In this paper we present a method for synthesis of decentralized controllers for systems interconnected on a graph. We develop a synthesis procedure which will achieve a specified level of performance...
Convexification of Optimal Decentralized Control Without a Stabilizing Controller
Stabilizing Controller Decentralized Control
2015/6/19
The problem of finding an optimal decentralized controller is considered, where both the plant and the controllers under consideration are rational. It has been shown that a condition called quadratic...
Affine Controller Parameterization for Decentralized Control over Banach Spaces
Banach Spaces Decentralized Control
2015/6/19
We cast the problem of optimal decentralized control as one of minimizing a closed-loop norm subject to a subspace constraint on the controller. In this note we consider continuous linear operators on...
Time-Delayed Decentralized H-Infinity Controller Design for Civil Structures: a Homotopy Method Through Linear Matrix Inequalities
Civil Structures Controller Design
2015/6/19
Traditional structural feedback control systems are centralized systems, whose applications to large scale structures encounter a number of practical difficulties in terms of system reliability, cost,...
Optimal Controller Synthesis for a Decentralized Two-Player System with Partial Output Feedback
Partial Output Feedback Two-Player System
2015/6/19
In this paper, we derive the optimal control policy for a decentralized control problem. The system considered here consists of two interconnected subsystems with communication allowed in only one dir...
Design of DOE-based Automatic Process Controller with Consideration of Model Uncertainties
Automatic Process Controller Model Uncertainties
2015/3/18
This paper developed a DOE-based
automatic process control scheme considering both
observation and modeling uncertainties. The
simulation demonstrates that considering the
uncertainties, automatic...
Backstepping controller synthesis and characterizations of incremental stability
Backstepping controller synthesis characterizations of incremental stability Optimization and Control
2012/7/9
Incremental stability is a property of dynamical and control systems, requiring the uniform asymptotic stability of every trajectory, rather than that of an equilibrium point or a particular time-vary...
Robust Repetitive Controller for Fast AFM Imaging
Robust Repetitive Controller Fast AFM Imaging Atomic Physics
2012/4/24
Currently, Atomic Force Microscopy (AFM) is the most preferred Scanning Probe Microscopy (SPM) method due to its numerous advantages. However, increasing the scanning speed and reducing the interactio...
On the computational complexity of stochastic controller optimization in POMDPs
Partially observable Markov decision process stochastic controller bilinear program computational complexity Motzkin-Straus theorem
2011/10/8
Abstract: We show that the problem of finding an optimal stochastic 'blind' controller in a Markov decision process is an NP-hard problem. The corresponding decision problem is NP-hard, in PSPACE, and...
Controller Synthesis for Robust Invariance of Polynomial Dynamical Systems using Linear Programming
Controller Synthesis Robust Invariance Polynomial Dynamical Systems Linear Programming
2011/8/30
Abstract: In this paper, we consider a control synthesis problem for a class of polynomial dynamical systems subject to bounded disturbances and with input constraints. More precisely, we aim at synth...
The Durham adaptive optics real-time controller
Instrumentation and Methods for Astrophysics (astro-ph.IM) Instrumentation and Detectors (physics.ins-det)
2011/1/6
The Durham adaptive optics real-time controller was initially a proof of concept design for a generic adaptive optics control system. It has since been developed into a modern and powerful CPU based r...