Robust Active Vibration Isolation: A Multivariable Data-Driven Approach
نویسندگان
چکیده
Active vibration isolation is essential for a large range of high precision motion systems in industry. This paper aims to develop a framework for high performance robust vibration isolation by explicitly addressing multivariable flexible dynamical behavior. A framework is proposed that connects identification and control. In addition, a new data-driven uncertainty modeling procedure is used that results in a nonconservative model error bound. Application on an active vibration isolation system confirms high performance robust vibration isolation.
منابع مشابه
Multivariable Data-Driven Uncertainty Modeling for Robust Active Vibration Isolation
Robustness is of vital importance for any feedback controlled system. An important example of such a feedback controlled system is an active vibration isolation system (AVIS), which is used to isolate highly accurate systems from external disturbances in multiple degrees-of-freedom. The underlying idea of vibration isolation is based on the concept of skyhook damping, see [1]. Model-based robus...
متن کاملIterative Data-Driven ℋ∞ Norm Estimation of Multivariable Systems With Application to Robust Active Vibration Isolation
This paper aims to develop a new data-driven H∞ norm estimation algorithm for model-error modeling of multivariable systems. An iterative approach is presented that requires significantly fewer prior assumptions on the true system, hence it provides stronger guarantees in a robust control design. The iterative estimation algorithm is embedded in a robust control design framework with a judiciou...
متن کاملIteratively Learning the H-Infinity-Norm of Multivariable Systems Applied to Model-Error-Modeling of a Vibration Isolation System
The aim of this paper is to develop a new datadriven approach for learning the H ∞ -norm of multivariable systems that can be used for model-error-modeling in robust feedback control. The proposed algorithm only requires iterative experiments on the system. Especially for the multivariable situation that is considered in this paper, these experiments have to be judiciously chosen. The proposed ...
متن کاملActive Vibration Suppression of a Nonlinear Flexible Spacecraft
In this article, the issue of attitude control and active vibration suppression of a nonlinear flexible spacecraft is assessed through piezoelectric patches as actuator and sensors. Two controller loops are applied: the inner loop, to make the panel vibration damped through piezoelectric patches; and the outer loop, to perform spacecraft maneuver using the reaction wheel acting on the hub. An o...
متن کاملA New Approach for QFT-type Robust Controller Design in Uncertain Multivariable Systems
This paper presents a robust controller design methodology for a class of linear uncertain multivariable systems with hard time-domain constraints on their outputs and control signals in response to step disturbance inputs. In this approach, the m×m MIMO system is replaced by m2 SISO systems and then, using the QFT technique, desirable controllers are synthesized. The final controller will be d...
متن کامل