https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 A class of preview control for dual-stage actuator systems https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:8728 Wed 11 Apr 2018 16:20:17 AEST ]]> A framework for the nonlinear control of dual-stage systems https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:17636 ∞, nonlinearities for the control of saturated linear systems, a methodology for integrating such nonlinear functions in order to improve the performance of DSA is presented. The stability of the closed-loop system is assessed by casting the nonlinearities in a mixed sector-bounded plus quasi-Linear Parameter Varying (LPV) framework, leading to a set of linear matrix inequalities (LMIs) to be satisfied by the controller parameters. Taking advantage of the developed framework, a new L∞ function is proposed to avoid the saturation of the secondary actuator. Simulation results illustrate the validity of the proposed framework and its potential for the performance improvement of DSA.]]> Sat 24 Mar 2018 07:57:48 AEDT ]]> Improved control design methods for proximate time-optimal servomechanisms https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:21560 Sat 24 Mar 2018 07:49:54 AEDT ]]> Saturation-aware control design for micro-nano positioning systems https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:30674 micro actuator responsible for a large range of actuation, and a nano actuator (NA) able to achieve a high bandwidth. The NA is commonly driven by flexure-based piezoelectric actuators subject to a limited range which presents large oscillations in the presence of output saturation. In order to avoid these oscillations, a non-linear smooth switching function that limits the actuation of the NA to only track references within its range is proposed. Experimental results demonstrate the effectiveness of the proposed approach, which is able to reduce oscillations and energy consumption without compromising settling time performance.]]> Sat 24 Mar 2018 07:29:37 AEDT ]]> Constrained optimal preview control of dual-stage actuators https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:25221 Sat 24 Mar 2018 07:14:01 AEDT ]]> High Precision over Long Range: A Macro-Micro Approach to Quantized Positioning Systems https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:49518 Sat 20 May 2023 12:32:10 AEST ]]> Asymptotic Tracking of Discrete-Time Systems Subject to Uniform Output Quantization https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:50300 Mon 17 Jul 2023 09:27:06 AEST ]]>