Results 51 to 60 of about 11,368 (242)

High‐Order Sliding‐Mode control for MIMO Systems

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper extends Lyapunov‐based homogeneous high‐order sliding‐mode control to a class of uncertain non‐square multi‐input multi‐output (MIMO) nonlinear systems with a well‐defined vector relative degree. The considered systems admit a normal‐form representation with an uncertain but full‐row‐rank input‐gain matrix.
Jaime A. Moreno, Angel Mercado‐Uribe
wiley   +1 more source

Robust Speed Control of Permanent Magnet Synchronous Motor Drive System Using Sliding-Mode Disturbance Observer-Based Variable-Gain Fractional-Order Super-Twisting Sliding-Mode Control

Fractal and Fractional
This paper proposes a novel nonlinear speed control method for permanent magnet synchronous motors that enhances their robustness and tracking performance.
Ameen Ullah, Jianfei Pan, Safeer Ullah, Zhang Zhang   +3 more
doaj   +1 more source

A Hybrid Control with PID–Improved Sliding Mode for Flat-Top of Missile Electromechanical Actuator Systems

Sensors, 2018
Electromechanical actuator (EMA) systems are widely employed in missiles. Due to the influence of the nonlinearities, there is a flat-top of about 64 ms when tracking the small-angle sinusoidal signals, which significantly reduces the performance of the ...
Man Zhou, Dapeng Mao, Mingyue Zhang, Lihong Guo, Mingde Gong   +4 more
doaj   +1 more source

Terrain‐Adaptive Quadrupedal Locomotion Using Model Predictive Control With Impedance Control and SINDy Model Enhancement

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Quadrupedal robots operating in unstructured environments require adaptive control systems that can handle diverse terrain conditions without prior surface characterization. This paper presents an integrated control architecture that combines Model Predictive Control (MPC) with adaptive impedance control and SINDy‐based model corrections for ...
Peter James McConnellogue, Mien Van, Rhyss McMullan, Dianhao Zhang, Wasif Naeem   +4 more
wiley   +1 more source

On Neural Observer in Dynamic Sliding Mode Control of Permanent Magnet Synchronous Wind Generator

Mathematics
The captured energy of a wind turbine (WT) can be converted into electricity by a generator. Therefore, to improve the efficiency of this system, both the structures of WTs and generators should be considered for control.
Ali Karami-Mollaee, Oscar Barambones
doaj   +1 more source

Privacy‐Preserving Data‐Driven Distributed MPC for Heterogeneous Nonlinear Multi‐Agent Systems

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Distributed model predictive control (DMPC) is a cornerstone for coordinating multi‐agent systems, yet simultaneously ensuring data privacy, handling unknown nonlinear dynamics, and managing heterogeneous constraints remains an open challenge.
Mahmood Mazare, Hossein Ramezani
wiley   +1 more source

Decentralized Electric Vehicle Charging Strategy for Voltage Regulation by Charging Shifting and Reactive Power Control in Distribution System

IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
This paper proposes a decentralized electric vehicle (EV) charging control method designed to clear voltage violations in distribution grids with high EV penetration, while considering consumer convenience. The concentration of EV charging demand can cause localized voltage violations, posing a significant challenge to grid operation.
Takafumi Watanabe, Akihisa Kaneko, Jun Yoshinaga, Hideo Ishii, Yasuhiro Hayashi, Yoshihiro Hirata, Takami Yokose, Nobuteru Ishihara   +7 more
wiley   +1 more source

A Novel Design of a Sliding Mode Controller Based on Modified ERL for Enhanced Quadcopter Trajectory Tracking

Drones
This paper introduces a new approach to obtain robust tracking performance, disturbance resistance, and input variation resistance, and eliminate chattering phenomena in the control signal and output responses of an unmanned aerial vehicle (UAV ...
Ahmed Abduljabbar Mahmood, Fernando García, Abdulla Al-Kaff   +2 more
doaj   +1 more source

On the Chatter of Lathe Tool, : 1st Report. On the Cause of Chatter

Journal of the Society of Mechanical Engineers, 1936
筆者は数年前削り抵抗力並に刄先の振動を正確に測定する方法を考案し、旋盤バイトのびびりに就て実驗を行つたが、その當時は被削材の振動を測定することが出耒なかつたゝめ充分な結果を得ることが出耒なかつた。今度回轉してゐる被削材の撓振動を削り抵抗力と同時に慣性の影響なく正確に測定する方法を考察し、旋盤主軸の撓に起因するびびりに就て実驗を行ひ、びびりは削り抵抗力の変化の週期が旋盤一部の自己振動の週期と一致して共鳴を起し、被削材及び刄先の振幅が著しく増大するものであることを実驗的に明かにした。
openaire   +3 more sources

AI‐enabled bumpless transfer control strategy for legged robot with hybrid energy storage system

CAAI Transactions on Intelligence Technology, EarlyView.
Abstract Designing Hybrid energy storage system (HESS) for a legged robot is significant to improve the motion performance and energy efficiency of the robot. However, switching between the driving mode and regenerative braking mode in the HESS may generate a torque bump, which has brought significant challenges to the stability of the robot locomotion.
Zhiwu Huang, Zi Yu, Hui Peng, Zixuan Wang, Xiaokang Dai, Weirong Liu, Jing Wang   +6 more
wiley   +1 more source