Results 281 to 290 of about 1,424,659 (349)

A Novel Disturbance Observer Based Fixed-Time Sliding Mode Control for Robotic Manipulators with Global Fast Convergence

IEEE/CAA Journal of Automatica Sinica
This paper proposes a new global fixed-time sliding mode control strategy for the trajectory tracking control of uncertain robotic manipulators. First, a fixed-time disturbance observer (FTDO) is designed to deal with the adverse effects of model ...
Dan Zhang, Jiabin Hu, Jun Cheng, Zhengguang Wu, Huaicheng Yan   +4 more
semanticscholar   +1 more source

A New Privacy Preservation Mechanism and a Gain Iterative Disturbance Observer for Multiagent Systems

IEEE Transactions on Network Science and Engineering
A new privacy preservation mechanism and a gain iterative disturbance observer are proposed for multiagent systems. The proposed privacy protection mechanism can realize the privacy preservation in the user-defined time, which can improve the encryption ...
Min Wang, Hongjing Liang, Yingnan Pan, Xiangpeng Xie   +3 more
semanticscholar   +1 more source

Speed-Current Single-Loop Control With Overcurrent Protection for PMSM Based on Time-Varying Nonlinear Disturbance Observer

IEEE transactions on industrial electronics (1982. Print), 2021
A novel finite-time control with q-axis current constrained based on time-varying second-order nonlinear disturbance observer is investigated to improve the performance of overcurrent protection and disturbance rejection for permanent magnet synchronous ...
Yao Wang, Haitao Yu, Yulei Liu
semanticscholar   +1 more source

Safety-Critical Control With Control Barrier Function Based on Disturbance Observer

IEEE Transactions on Automatic Control
In this article, we investigate the continuous and sampled-data safety-critical control problems with control barrier functions in the presence of time-varying disturbances.
Jiankun Sun, Jun Yang, Zhigang Zeng
semanticscholar   +1 more source

An Adaptive Switching-Gain Sliding-Mode-Assisted Disturbance Observer for High-Precision Servo Control

IEEE transactions on industrial electronics (1982. Print), 2022
Active disturbance compensation is crucial for realizing high-precision servo control. However, the suppression of rapidly changing disturbances is still a challenging issue.
Dapeng Tian, R. Xu, E. Sariyildiz, Huijun Gao   +3 more
semanticscholar   +1 more source

INTEGRATED DISTURBANCE OBSERVER

2023
The present invention relates to an integrated disturbance observer capable of efficiently removing an unintended disturbance in force/torque dimensions, which can affect a system in a contact or noncontact situation with an external object in a bot system.
강와계, 사무엘; id_orcid 0000-0002-7791-3356, 이현욱, Hyun-Wook   +1 more
openaire   +2 more sources

Disturbance observer-based prescribed performance super-twisting sliding mode control for autonomous surface vessels.

ISA transactions, 2022
This paper proposes a disturbance observer-based prescribed performance super-twisting sliding mode control (DOB PPSTSMC) for trajectory tracking of the autonomous surface vessels (ASVs) subject to unknown external disturbances and modeling errors.
Chang Zhang, Shuanghe Yu
semanticscholar   +1 more source

Disturbance decoupled functional observers

IEEE Transactions on Automatic Control, 1999
Summary: If a state observer does not exist, it is possible to design a functional observer. Principally, this is also true for systems with unknown inputs (termed as disturbances). Necessary and sufficient conditions for the existence of disturbance decoupled functional observers for linear time-invariant systems are provided.
Hou, M., Pugh, A. C., Müller, P. C.
openaire   +1 more source

Fixed-Time Disturbance Observer-Based Attitude Prescribed Performance Predictive Control for Flexible Spacecraft

IEEE Transactions on Aerospace and Electronic Systems
This article investigates the problem of improving control performance during flexible spacecraft maneuvers, hampered by system uncertainties, environmental disturbances, and flexible vibrations.
Quan-Zhi Liu, Liu Zhang, Bo Sun, Yang Xiao, Guowei Fan   +4 more
semanticscholar   +1 more source

Disturbance-Observer-Based Complementary Sliding-Mode Speed Control for PMSM Drives: A Super-Twisting Sliding-Mode Observer-Based Approach

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2021
This article proposes a novel disturbance-observer-based complementary sliding-mode (DO-CSM) speed controller for the field-oriented controlled permanent-magnet synchronous motor (FOC-PMSM) drive system.
Yong-Chao Liu, S. Laghrouche, D. Depernet, A. Djerdir, M. Cirrincione   +4 more
semanticscholar   +1 more source