2020
DOI: 10.1049/iet-cta.2020.0679
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Experimental validation of the simultaneous damping and tracking controller design strategy for high‐bandwidth nanopositioning – a PAVPF approach

Abstract: For scanning applications, damping and tracking controllers are employed in a dual‐loop fashion. Whilst these damping and tracking controllers are designed sequentially in literature (damping first, tracking later), it has been found that the tracking controller (typically integral or proportional–integral) influences the ‘desired’ pole locations (and thereby its damping performance) achieved by the positive acceleration, velocity and position feedback (PAVPF) damping controller. This work starts by first high… Show more

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Cited by 9 publications
(5 citation statements)
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“…where γ 1 , ω 1 and ζ 1 are the first resonant mode numerator constant, resonant frequency, damping ratio, respectively, and d f is the feed-through term, which accounts for truncation effects. In order to dampen the dominant resonant mode of such systems, a family of positive feedback controllers have been developed, namely PPF (Positive Position Feedback) [27], PVPF (Positive Velocity Position Feedback) [22], PAVPF (Positive Acceleration Velocity Position Feedback) [16] and IRC (Integral Resonant Control) [23]. In this work, the primary focus is the positive feedback controller consisting of PPF through to PAVPF.…”
Section: Preliminariesmentioning
confidence: 99%
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“…where γ 1 , ω 1 and ζ 1 are the first resonant mode numerator constant, resonant frequency, damping ratio, respectively, and d f is the feed-through term, which accounts for truncation effects. In order to dampen the dominant resonant mode of such systems, a family of positive feedback controllers have been developed, namely PPF (Positive Position Feedback) [27], PVPF (Positive Velocity Position Feedback) [22], PAVPF (Positive Acceleration Velocity Position Feedback) [16] and IRC (Integral Resonant Control) [23]. In this work, the primary focus is the positive feedback controller consisting of PPF through to PAVPF.…”
Section: Preliminariesmentioning
confidence: 99%
“…Once these are found, they can be substituted into Equation ( 25), which will yield the correction optimisation problem for K and, hence, the correct choice of K. This will be shown in detail for each controller type in this paper. Moreover, in the following section, the open-loop system is generated from experimentally sourced frequency response data based on the nanopositioner system at the University of Aberdeen [16].…”
Section: Coeff Termsmentioning
confidence: 99%
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“…The nonlinearity of piezoelectric actuator has been identified online and compensated for using singularity-free neural networks. A. K. Babarinde et al [30] proposed the design, analysis, and experimental validation of the simultaneous method for a positive acceleration, velocity, and position feedback control-based combined damping and tracking scheme. C. Chang [31] proposed a four-degree-of-freedom (DOF) actuator for FSM compensation systems to compensate for 4-DOF laser errors.…”
Section: Introductionmentioning
confidence: 99%