Results 291 to 300 of about 1,303,255 (329)

Disturbance Observer-Based Event-Triggered Control of Switched Positive Systems

IEEE Transactions on Circuits and Systems - II - Express Briefs
This brief investigates the disturbance observer-based event-triggered control of switched positive systems. A disturbance observer is first constructed and then a compensator is designed. A feedback control is proposed by using the disturbance observer,
Yahao Yang, Junfeng Zhang, Mengxing Huang, Xuegang Tan   +3 more
semanticscholar   +1 more source

Fixed-Time Disturbance Observer-Based Control for Quadcopter Suspension Transportation System

IEEE Transactions on Circuits and Systems Part 1: Regular Papers, 2022
By considering the under-actuated characteristics of the quadcopter suspension transportation system and the external disturbance, the effective tracking control of the quadrotor transportation system faces great difficulties and challenges.
Wei Liu, Mou Chen, Peng Shi
semanticscholar   +1 more source

Event-Triggered-Based Discrete-Time Neural Control for a Quadrotor UAV Using Disturbance Observer

IEEE/ASME transactions on mechatronics, 2021
An event-triggered-based (ETB) discrete-time neural control is studied for a quadrotor unmanned aerial vehicle (UAV) with external disturbances and input saturation by using the discrete-time disturbance observer (DTDO).
Shuyi Shao, Mou Chen, Jie Hou, Qi-jun Zhao   +3 more
semanticscholar   +1 more source

Robust Synchronization for Under-Actuated Vessels Based on Disturbance Observer

IEEE transactions on intelligent transportation systems (Print), 2021
This work focuses on the robust leader-follower synchronization navigation for the under-actuated vessels with only independent the surge control force and the yaw moment. The ocean disturbances and thruster saturation are simultaneously addressed.
Xin Hu, Xinjiang Wei, Y. Kao, Jian Han
semanticscholar   +1 more source

Differentiator-Based Disturbance Observer

2019 IEEE 8th Data Driven Control and Learning Systems Conference (DDCLS), 2019
The analysis of nonlinear disturbance observer (NDO) is first given in detail and an equivalent differentiator structure is used to explain the NDO. The design procedure of NDO is given according to this equivalent structure. Then the structure and principle of the generalized differentiator-based disturbance observer (DBDO) is given and compared with ...
Xiangyang Li, Zhiqiang Gao, Wei Ai, Senping Tian   +3 more
openaire   +1 more source

Adaptive Neural-Network-Based Fault-Tolerant Control for a Flexible String With Composite Disturbance Observer and Input Constraints

IEEE Transactions on Cybernetics, 2021
We propose an adaptive neural-network-based fault-tolerant control scheme for a flexible string considering the input constraint, actuator gain fault, and external disturbances.
Zhijia Zhao, Yong Ren, C. Mu, T. Zou, K. Hong   +4 more
semanticscholar   +1 more source

Disturbance Decoupled Observers Having Unrestricted Spectrum

Journal of the Franklin Institute, 1982
Abstract The problem of observing the state of a linear finite dimensional system in the presence of unknown disturbance noise is considered. Necessary and sufficient conditions are developed for the existence of a minimal order observer capable of producing an asymptotic estimate of the state of the given system.
Fairman, Frederick W., Hinamoto, Takao, Hirschorn, Ronald   +2 more
openaire   +1 more source

Disturbance Observer-Based Finite-Time Control for Three-Phase AC–DC Converter

IEEE transactions on industrial electronics (1982. Print), 2022
For three-phase ac–dc converters, load disturbances, and parameter uncertainties cause large fluctuations of the dc-link voltage, even resulting in system instability. In order to cope with this problem, the disturbance observer-based finite-time control
Cheng Fu, C. Zhang, Guanguan Zhang, Jinqiu Song, Chen Zhang, Bin Duan   +5 more
semanticscholar   +1 more source

Friction Compensation Via Disturbance Observer

IFAC Proceedings Volumes, 1991
Abstract For the translational movement of a robot arm, which is disturbed by a very strong frictional force, a method is developed to achieve an accurate position control. Therefore, the idealized translar tional degree of freedom, which is represented by a simple second order model, is used as a reference model to the read process.
openaire   +1 more source

Improvement of disturbance suppression based on disturbance observer

9th IEEE International Workshop on Advanced Motion Control, 2006., 2006
This research focuses on improvement of disturbance suppression even under existence of observation noise. Disturbance observer is an effective tool to estimate and compensate disturbance. There is a problem, however, that it cannot accomplish desired disturbance suppression when a large observation noise exists.
M. Mizuochi, T. Tsuji, K. Ohnishi
openaire   +1 more source