Feedback Control

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The Experts below are selected from a list of 338220 Experts worldwide ranked by ideXlab platform

Jose S. Cánovas - One of the best experts on this subject based on the ideXlab platform.

Dennis S. Bernstein - One of the best experts on this subject based on the ideXlab platform.

  • Feedback Control an invisible thread in the history of technology
    IEEE Control Systems Magazine, 2002
    Co-Authors: Dennis S. Bernstein
    Abstract:

    The history of technology combines engineering with economic, social, and political factors. Technology seems to advance in waves. Small advances accumulate slowly until a critical level of technological success and economic advantage is achieved. Throughout technological history is found the idea of Feedback Control. Like all ideas, Feedback Control impacts technology only when it is embodied therein; it is not tied to any specific innovation or invention. The article describes innovations that either use Feedback Control or allow it to be exploited. They are simple but their impact on technology is profound. It is shown that they played a crucial role in facilitating the truly great waves of technological and scientific development. They are the escapement (a significant part of the paper is about mechanical clocks), the governor, the aileron, the gyro, and the amplifier.

  • Nonlinear Feedback Control with global stabilization
    Dynamics and Control, 1995
    Co-Authors: Chih-jian Wan, Dennis S. Bernstein
    Abstract:

    Hamilton-Jacobi-Bellman theory is shown to provide a unified framework for nonlinear Feedback Control laws for special classes of nonlinear systems. These classes include Jurdjevic-Quinn type systems, as well as minimum phase systems with relative degree {1, 1, ..., 1}. Several examples are given to illustrate these results. For the Controlled Lorenz equation, results obtained by Vincent and Yu are extended. Next, for spacecraft angular velocity stabilization with two torque inputs, a family of nonlinear Feedback Control laws that globally asymptotically stabilize angular velocity is established. Special cases of this family of Control laws include generalizations of the locally stabilizing Control laws of Brockett and Aeyels to global stabilization as well as the globally stabilizing Control laws of Irving and Crouch and Byrnes and Isidori. Finally, the results are applied to spacecraft angular velocity stabilization with only one torque input. These last results extend Control laws given by Outbib and Sallet.

Dominique Sauter - One of the best experts on this subject based on the ideXlab platform.

  • Output Feedback Control of a Class of Stochastic Hybrid Systems
    Automatica, 2008
    Co-Authors: Samir Aberkane, Jean-christophe Ponsart, Mickael Rodrigues, Dominique Sauter
    Abstract:

    This paper deals with static output Feedback Control of a class of reconfigurable systems with Markovian Parameters and state-dependent noise. The main contribution is to formulate conditions for multi-performance design related to this class of stochastic hybrid systems. The specifications and objectives under consideration include stochastic stability, H_2 and H_inf performances. Another problematic related to a more general class of stochastic hybrid systems, known as Markovian Jump Linear Systems (MJLS), is also addressed. This problematic concerns the mode-independent output Feedback Control of MJLS. The obtained results are illustrated on a numerical example.

Lihua Xie - One of the best experts on this subject based on the ideXlab platform.

  • ICARCV - Connections between quantized Feedback Control and quantized estimation
    2008 10th International Conference on Control Automation Robotics and Vision, 2008
    Co-Authors: Lihua Xie
    Abstract:

    Quantized Feedback Control and quantized estimation have attracted a lot of attention in recent years with many results available on both research topics. In this paper, we investigate connections between quantized Feedback Control and quantized estimation and try to establish a possible separation principle for quantized output Feedback which would allow the Control design and state estimation to become independent in a networked Control environment. We also consider the use of a variable rate finite-level logarithmic quantizer and show that this may approach the minimum averaged bit rate required for quantized Feedback stabilization.

Raymond H. Byrne - One of the best experts on this subject based on the ideXlab platform.

  • CDC - Structuring the Optimal Output Feedback Control Gain: A Soft Constraint Approach
    2018 IEEE Conference on Decision and Control (CDC), 2018
    Co-Authors: Felipe Wilches-bernal, David A. Copp, Giorgio Bacelli, Raymond H. Byrne
    Abstract:

    This paper discusses the optimal output Feedback Control problem of linear time-invariant systems with additional restrictions on the structure of the optimal Feedback Control gain. These restrictions include setting individual elements of the optimal gain matrix to zero and making the sum of certain rows of the gain matrix equal to desired values. The paper proposes a method that modifies the standard quadratic cost function to include soft constraints ensuring the satisfaction of these restrictions on the structure of the optimal gain. Necessary conditions for optimality with these soft constraints are derived, and an algorithm to solve the resulting optimal output Feedback Control problem is given. Finally, a power systems example is presented to illustrate the usefulness of proposed approach.

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