NDLI: Piezoelectric positioning control with output-based discrete-time terminal sliding mode control

Content Provider	IET Digital Library
Author	Xu, Qingsong Cao, Zhenwei
Abstract	Nanopositioning systems with piezoelectric actuation have found extensively applications in micro-/nanomanipulation domain. This paper reports on the design, realisation and testing of a new output-based discrete-time terminal sliding mode control (DTSMC) scheme, which is applied to achieve precision motion control of a piezoelectric nanopositioning system by overcoming the unmolded non-linearity and disturbance. The controller is easy to implement because it does not require a hysteresis model and a state observer. It is able to deliver a precise tracking without chattering phenomenon. The stability of the control system is proved and the effectiveness of the control scheme is demonstrated through experimental studies. Results show that the non-linear DTSMC robust control is superior to the conventional linear discrete-time sliding-mode control in motion tracking application. The DTSMC enables the generation of a larger bandwidth than the conventional approaches. Moreover, the DTSMC endows the system a well robustness feature in the presence of model uncertainty and external disturbances.
Starting Page	694
Ending Page	702
Page Count	9
ISSN	17518644
Volume Number	11
e-ISSN	17518652
Issue Number	Issue 5, Mar (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-cta/11/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-cta.2016.0956
Journal	IET Control Theory & Applications
Publisher Date	2017-01-05
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Conventional Linear Discrete-time Sliding-mode Control Discrete Control System Discrete Time System Electric Actuators External Disturbances Final Control Equipment Micro-nanomanipulation Domain Microactuators Micropositioning Model Uncertainty Motion Control Motion Tracking Application Multivariable Control System Nanopositioning Nanopositioning System Nonlinear Control System Nonlinear DTSMC Robust Control Output-based Discrete-time Terminal Sliding Mode Control Piezoelectric Actuation Piezoelectric Actuators Piezoelectric Positioning Control Precision Motion Control Robust Control Robustness Feature Spatial Variables Control Stability Stability in Control Theory Uncertain System Variable Structure System
Content Type	Text
Resource Type	Article
Subject	Control and Optimization Control and Systems Engineering Human-Computer Interaction Electrical and Electronic Engineering Computer Science Applications

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