Simple saturated relay non-linear PD control for uncertain motion systems with friction and actuator constraint

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Simple saturated relay non-linear PD control for uncertain motion systems with friction and actuator constraint. / Zheng, Chunhong; Su, Yuxin; Mercorelli, Paolo.
In: IET Control Theory and Applications, Vol. 13, No. 12, 13.08.2019, p. 1920-1928.

Research output: Journal contributionsJournal articlesResearchpeer-review

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@article{53e6749ed7064a9b89860e2ddc1a09b0,
title = "Simple saturated relay non-linear PD control for uncertain motion systems with friction and actuator constraint",
abstract = "This study addresses the problem of robust fast and high-precision positioning of uncertain one-degree-of-freedom mechanical systems with friction and actuator constraint. The proposed control is constructed within the framework of saturated proportional–derivative (PD) plus relay action. Global asymptotic positioning stability is proven by Lyapunov's direct method with Barbalat's lemma. The appealing features of the proposed control are that it is fairly easy to construct with simple intuitive structure and the absence of modelling parameter in the control law formulation, and thus it is ready to implement for practical applications. An additive feature is that the proposed control embeds the PD action within one saturation function and hence it omits the elaborating embedment of the control gains within the requested constraint. Another feature is that the proposed approach can be explicitly upper bounded a priori and thus, it has the ability to protect the actuator from saturation completely and to ensure global asymptotic stability featuring fast transient and high steady-state positioning. Numerical simulations and real experimental results demonstrate the effectiveness and improved performance of the proposed approach.",
keywords = "Engineering, friction, actuators, Control system synthesis, unvertain systems, lyapunov methods, robust control, asymptotic stability, nonlinear control systems, PD control, position control",
author = "Chunhong Zheng and Yuxin Su and Paolo Mercorelli",
year = "2019",
month = aug,
day = "13",
doi = "10.1049/iet-cta.2018.6441",
language = "English",
volume = "13",
pages = "1920--1928",
journal = "IET Control Theory and Applications",
issn = "1751-8644",
publisher = "John Wiley & Sons Inc.",
number = "12",

}

RIS

TY - JOUR

T1 - Simple saturated relay non-linear PD control for uncertain motion systems with friction and actuator constraint

AU - Zheng, Chunhong

AU - Su, Yuxin

AU - Mercorelli, Paolo

PY - 2019/8/13

Y1 - 2019/8/13

N2 - This study addresses the problem of robust fast and high-precision positioning of uncertain one-degree-of-freedom mechanical systems with friction and actuator constraint. The proposed control is constructed within the framework of saturated proportional–derivative (PD) plus relay action. Global asymptotic positioning stability is proven by Lyapunov's direct method with Barbalat's lemma. The appealing features of the proposed control are that it is fairly easy to construct with simple intuitive structure and the absence of modelling parameter in the control law formulation, and thus it is ready to implement for practical applications. An additive feature is that the proposed control embeds the PD action within one saturation function and hence it omits the elaborating embedment of the control gains within the requested constraint. Another feature is that the proposed approach can be explicitly upper bounded a priori and thus, it has the ability to protect the actuator from saturation completely and to ensure global asymptotic stability featuring fast transient and high steady-state positioning. Numerical simulations and real experimental results demonstrate the effectiveness and improved performance of the proposed approach.

AB - This study addresses the problem of robust fast and high-precision positioning of uncertain one-degree-of-freedom mechanical systems with friction and actuator constraint. The proposed control is constructed within the framework of saturated proportional–derivative (PD) plus relay action. Global asymptotic positioning stability is proven by Lyapunov's direct method with Barbalat's lemma. The appealing features of the proposed control are that it is fairly easy to construct with simple intuitive structure and the absence of modelling parameter in the control law formulation, and thus it is ready to implement for practical applications. An additive feature is that the proposed control embeds the PD action within one saturation function and hence it omits the elaborating embedment of the control gains within the requested constraint. Another feature is that the proposed approach can be explicitly upper bounded a priori and thus, it has the ability to protect the actuator from saturation completely and to ensure global asymptotic stability featuring fast transient and high steady-state positioning. Numerical simulations and real experimental results demonstrate the effectiveness and improved performance of the proposed approach.

KW - Engineering

KW - friction

KW - actuators

KW - Control system synthesis

KW - unvertain systems

KW - lyapunov methods

KW - robust control

KW - asymptotic stability

KW - nonlinear control systems

KW - PD control

KW - position control

UR - http://www.scopus.com/inward/record.url?scp=85069937035&partnerID=8YFLogxK

U2 - 10.1049/iet-cta.2018.6441

DO - 10.1049/iet-cta.2018.6441

M3 - Journal articles

AN - SCOPUS:85069937035

VL - 13

SP - 1920

EP - 1928

JO - IET Control Theory and Applications

JF - IET Control Theory and Applications

SN - 1751-8644

IS - 12

ER -

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