LPV technique for the rejection of sinusoidal disturbance with time-varying frequency

Experimental evaluation of an LPV-gain-scheduled observer for rejecting multisine disturbances with time-varying frequencies

“…Usually, this can be tolerated, but not for the suppression of harmonic disturbances. It is therefore not surprising that the continuous-time controllers of [9]- [12] are only tested in simulations with a very simple two-mass system as a plant and a single frequency in the disturbance signal. The design methods that are tested in real-time are usually formulated in discrete time ([4]- [8], [14]- [16]).…”

LPV Gain-Scheduled Observer-Based State Feedback for Active Control of Harmonic Disturbances with Time-Varying Frequencies

“…Usually, this can be tolerated, but not for the suppression of harmonic disturbances. It is therefore not surprising that the continuous-time controllers of Darengosse & Chevrel [10], Du et al [12], Kinney & de Callafon [19] and Köroglu & Scherer [23] are only tested in simulation studies with a very simple system as a plant and a single frequency in the disturbance signal. The design methods that are tested in real time are usually formulated in discrete time [4,5,7,8,16,17,20,21,26].…”

“…For example, for linear parameter-varying (LPV) systems, where the uncertain parameters are contained in a polytope, one controller is calculated for each vertex and the resulting controller is obtained from interpolation [2]. For the rejection of harmonic disturbances, continuous-time LPV approaches have been suggested by Darengosse & Chevrel [10], Du & Shi [11], Du et al [12], Witte et al [28], Balini et al [6] and tested for a single sinusoidal disturbance by Darengosse & Chevrel [10], Du et al [12], Witte et al [28] and Balini et al [6]. Methods based on observer-based state-feedback controllers are presented by Bohn et al [7,8], Kinney & de Callafon [19,20,21] and Heins et al [16,17].…”

Rejection of Harmonic and Transient Disturbances of a Smart Structure With Piezoelectric Actuators

“…Dettori and Scherer (2001), Du et al (2003), Bohn (2011a, 2011b), Shu et al (2011) and Duarte et al (2012Duarte et al ( , 2013 employed gain-scheduling output-feedback controllers. In the work done by Heins et al (2011Heins et al ( , 2012aHeins et al ( , 2012b and Ballesteros et al (2012) gain--scheduling observer-based controllers were implemented.…”