scholarly journals Negative imaginary synthesis via dynamic output feedback and static state feedback: A Riccati approach

Automatica ◽  
2019 ◽  
Vol 104 ◽  
pp. 220-227 ◽  
Author(s):  
Gabriela Salcan-Reyes ◽  
Alexander Lanzon
Keyword(s):  
Output Feedback ◽  
State Feedback ◽  
Dynamic Output Feedback ◽  
Static State ◽  
Dynamic Output ◽  
Static State Feedback

Parameterization of all stabilizing H∞ static state-feedback gains: Application to output-feedback design

Automatica ◽  
2007 ◽  
Vol 43 (9) ◽  
pp. 1597-1604 ◽  
Author(s):  
J. Gadewadikar ◽  
Frank L. Lewis ◽  
L. Xie ◽  
V. Kucera ◽  
M. Abu-Khalaf
Keyword(s):  
Output Feedback ◽  
State Feedback ◽  
Static State ◽  
Feedback Design ◽  
Static State Feedback

scholarly journals On Finite-Time Feedback Control for Switched Discrete-Time Systems under Fast and Slow Switching

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Liaoliang Xiao ◽  
Mingyang Yu
Keyword(s):  
Output Feedback ◽  
State Feedback ◽  
Controller Design ◽  
Feedback Controller ◽  
Static State ◽  
Output Feedback Controller ◽  
Discrete Time Systems ◽  
Static State Feedback ◽  
Time Systems ◽  
Slow Switching

The problem of finite-time stabilization for switched discrete-time systems under both fast and slow switching is addressed. In the fast switching case, the designed static state feedback controller combines controllers for each subsystem and resetting controller at switching instant, it is shown that the resetting controller can reduce the conservativeness on controller design. Then the results are extended to output feedback controller design. Under slow switching, both static state feedback and output feedback controller are designed with admissible average dwell time, respectively. Several numerical examples are given to illustrate the proposed results within this paper.

On Robust Parametric Dynamic Output Feedback

1990 ◽  
Vol 112 (3) ◽  
pp. 507-512 ◽  
Author(s):  
M. A. Zohdy ◽  
A. A. Abdul-Wahab ◽  
N. K. Loh ◽  
Jun Liu
Keyword(s):  
Feedback Control ◽  
Output Feedback ◽  
State Feedback ◽  
Design Parameters ◽  
Dynamic Output Feedback ◽  
Matrix Equations ◽  
Reduced Order ◽  
Dynamic Output ◽  
Time Invariant

This paper presents a new and unified treatment of feedback control for linear multivariable time-invariant systems, using reduced-order dynamic output feedback to recover state feedback properties. A set of free design parameters are effectively exploited in achieving desirable performance tradeoffs, through solving Lyapunov-like matrix equations.

H∞ control method for seismically excited building structures with time-delay

2020 ◽  
Vol 26 (11-12) ◽  
pp. 865-884 ◽  
Author(s):  
Mojtaba Lezgy-Nazargah ◽  
Arezou Elahi ◽  
Mohammad Pakizeh Tali
Keyword(s):  
Time Delay ◽  
Output Feedback ◽  
State Feedback ◽  
Control Method ◽  
Integral Transformation ◽  
Control Algorithms ◽  
Dynamic Output Feedback ◽  
Building Structures ◽  
Feedback Controllers ◽  
Dynamic Output

Although remarkable studies are reported about active structural control of seismically excited building structures and different control algorithms are introduced, most of the available control strategies have neglected the effects of time-delay in the control system. However, the time-delay has a significant influence on the control performance so that instability in responses may occur if time-delay is not considered in design of controllers and their control algorithms. In this paper, two types of controllers (state feedback and dynamic output feedback controllers) are designed for vibration suppression of seismically excited building structures considering the effects of time-delay. To this aim, the dynamic differential equations of a system with an artificial time-delay are first written. Then, the dynamic system is converted into delay-free equations by using a special integral transformation. Finally, state feedback and dynamic output feedback controllers are designed by using the [Formula: see text] control theory. Simulation results show that the suggested control algorithms can effectively suppress the vibrations of building structures under time-delay conditions.

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