Results 91 to 100 of about 941 (202)

Study on Compound Control Strategy of Dual‐Transistor Forward Swiss Rectifier Under Grid Voltage Unbalance

open access: yesJournal of Control Science and Engineering, Volume 2025, Issue 1, 2025.
The dual‐transistor forward Swiss rectifier encounters operational challenges under grid voltage imbalance conditions, where negative sequence voltage components induce DC bus voltage fluctuations and amplify AC input current harmonics, thereby compromising system stability and operational efficiency.
Zhun Cheng   +5 more
wiley   +1 more source

Modeling and Feedback Control of a MEMS Electrostatic Actuator [PDF]

open access: yes, 2009
This thesis describes the mathematical modeling and closed-loop voltage control of a MEMS electrostatic actuator. The control goal is to extend the travel range of the actuator beyond the open-loop pull-in limit of one third of the initial gap.
Edwards, Jason
core   +2 more sources

Agricultural tractors magneto-rheological seat suspension design based on LADRC control strategy

open access: yesMechanics & Industry
This paper proposes a novel semi-active suspension control method for agricultural tractor seats based on Linear Active Disturbance Rejection Control (LADRC).
Chen Bin   +5 more
doaj   +1 more source

Linear Active Disturbance Rejection Control for Nonaffine Strict-Feedback Nonlinear Systems

open access: yesIEEE Access, 2019
This paper presents a linear active disturbance rejection controller (LADRC) for nonaffine nonlinear systems with strict-feedback form. The proposed LADRC results in a closed-loop system with a three-time-scale structure, in which a reduced-order linear ...
Zhixiang Chen   +3 more
doaj   +1 more source

Adaptive complex coefficient‐filtered extended states observer type three‐phase enhanced phase‐locked loop

open access: yesIET Power Electronics, Volume 17, Issue 14, Page 2039-2058, 4 November 2024.
This paper proposed a full order extended state observer (ESO) based complex coefficient filtered (CCF) enhanced phase locked loop (EPLL), which is employed in matrix reactance frequency converter (MRFC) for rotating vectors measurement estimation. The adaptive CCF‐ESO‐EPLL structure design, stability, frequency analysis, and parameter adaptive tuning ...
Baojun Ge   +4 more
wiley   +1 more source

Adaptive multi‐level differential coupling control strategy for dual‐motor servo synchronous system based on global backstepping super‐twisting control

open access: yesIET Control Theory &Applications, Volume 18, Issue 15, Page 1892-1909, October 2024.
Abstract A new dual‐motor servo steering system with improved reliability and safety is proposed. But, despite the advantages of the proposed servo system, it is strongly coupled, non‐linear and multivariable, where the biggest challenge lies in its tracking and synchronization control. To improve the tracking and synchronization control performance of
Taoyu Wang, Shiyan Sun
wiley   +1 more source

Modeling and Robust Control of a Grid Connected Direct Driven PMSG Wind Turbine By ADRC [PDF]

open access: yes, 2018
In this paper, we present the modeling and control of a grid connected Variable Speed Wind Energy Conversion System (VS-WECS) based on a Direct Driven Permanent Magnet Synchronous Generator (DD-PMSG).
Ahmed Aghmadi   +3 more
core   +2 more sources

LADRC‐based non‐characteristic harmonic suppression strategy for pumped storage power plants

open access: yesElectronics Letters, Volume 60, Issue 20, October 2024.
This letter proposes a control strategy based on linear active disturbance rejection control (LADRC) to alleviate the delay triggering angle α non‐characteristic harmonics caused by transient disturbances. The validity of the conclusion was verified through on‐site data collection, theoretical analysis, and simulation verification.
Zheng Lan   +4 more
wiley   +1 more source

DEVELOPMENT OF AN LADRC-BASED TILLAGE DEPTH CONTROL SYSTEM FOR ELECTRIC ROTARY TILLER [PDF]

open access: yesEngenharia Agrícola
Precision control of tillage depth is crucial for optimizing soil preparation in tea plantations. This study presents an adaptive real-time tillage depth control system based on Linear Active Disturbance Rejection Control (LADRC) to address precision ...
Bin Chen   +4 more
doaj   +1 more source

U-model based predictive control for nonlinear processes with input delay [PDF]

open access: yes, 2019
In this paper, a general control scheme is proposed for nonlinear dynamic processes with input delay described by different models, including polynomial models, state-space models, nonlinear autoregressive moving average with eXogenous inputs (NARMAX ...
Geng, Xinpeng   +3 more
core   +1 more source

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