Iterative super-twisting sliding mode control for tray indexing system with unknown dynamics

W Wang, J Ma, X Li, Z Cheng, H Zhu… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
Tray indexing driven by a timing-belt actuator is commonly used in the manufacturing
industry, in situations where precise and fast reference tracking is required to ensure product …

Observer-based fast nonlinear MPC for multi-DOF maglev positioning system: Theory and experiment

K Zhang, F Xu, X Xu - Control Engineering Practice, 2021 - Elsevier
This paper presents an observer-based fast nonlinear model predictive control (NMPC)
scheme for translation control of magnetically levitated (maglev) positioning system subject …

A novel compliant nanopositioning stage driven by a normal-stressed electromagnetic actuator

L Chen, Y Niu, X Yang, WL Zhu… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
This article reports on the design, modeling, control, and testing of a novel compliant
nanopositioning stage driven by a self-developed normal-stressed electromagnetic actuator …

Design of a long stroke nanopositioning stage with self-damping actuator and flexure guide

C Zhang, X Huang, M Yang, S Chen… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Long stroke nanopositioning stages with high natural frequency and compact size are
demanded in precision engineering. However, in previous researches, the natural frequency …

Convex Inner Approximation for Mixed / Control With Application to a 2-DoF Flexure-Based Nanopositioning System

J Ma, Z Cheng, W Wang, X Li, H Zhu… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
This article presents a convex inner approximation approach for mixed/control of a flexure-
based nanopositioning system. Generally for such positioning systems, the inevitable …

Real-time application of robust offset-free MPC in maglev planar machine

F Xu, Y Shi, K Zhang, X Xu - IEEE Transactions on Industrial …, 2022 - ieeexplore.ieee.org
This article improves the transient response of a magnetically levitated (maglev) planar
machine through the model predictive control (MPC) benefiting from explicitly incorporating …

Learning adaptive sliding mode control for repetitive motion tasks in maglev rotary table

T Zheng, X Xu, X Lu, L Hao, F Xu - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Considering the increasingly strict motion precision requirements and repetitive task
characteristics of magnetic levitation systems (MLSs) in the sophisticated industry, this article …

Robust iterative learning model predictive control for repetitive motion of maglev planar motor

K Zhang, F Xu, X Xu - IET Electric Power Applications, 2022 - Wiley Online Library
This paper presents a robust iterative learning model predictive control (RILMPC) scheme
for repetitive trajectory tracking of a magnetically levitated (maglev) planar motor. The …

Structural design and active disturbance rejection control of rigid-flexible coupling motion stage for nanopositioning

Z Yang, R Huang, S Chen, L Su, R Li - Journal of the Franklin Institute, 2023 - Elsevier
Mechanical-bearing-guided motion stage is widely used in electronic manufacturing
equipment for its excellent high-acceleration performance and low cost, but its positioning …

Motion control of a magnetic levitation actuator based on a wrench model considering yaw angle

F Xu, X Lu, T Zheng, X Xu - IEEE Transactions on Industrial …, 2019 - ieeexplore.ieee.org
Magnetic levitation positioning systems have attracted an increasing amount of attentions for
many modern industrial applications because they can work in a large range of motion in …