Title :
Feedback Control of Negative-Imaginary Systems
Author :
Petersen, Ian R. ; Lanzon, Alexander
Abstract :
This paper investigates the robustness of positive-position feedback control of flexible structures with colocated force actuators and position sensors. In particular, the theory of negative-imaginary systems is used to reveal the robustness properties of multi-input, multi-output (MIMO) positive-position feedback controllers and related types of controllers for flexible structures. The negative-imaginary property of linear systems can be extended to nonlinear systems through the notion of counterclockwise input-output dynamics.
Keywords :
MIMO systems; actuators; feedback; flexible structures; force control; nonlinear control systems; position control; robust control; sensors; structural engineering; colocated force actuators; counterclockwise input-output dynamics; feedback control; flexible structures; linear systems; multiinput multioutput control; negative-imaginary systems theory; nonlinear systems; position sensors; robustness properties; Actuators; Feedback control; Flexible structures; RLC circuits; Sensors; Transfer functions;
Journal_Title :
Control Systems, IEEE
DOI :
10.1109/MCS.2010.937676
