Filters








19,744 Hits in 9.0 sec

Experimental demonstration of a classical approach to flexible structure control

BONG WIE
1992 Journal of Guidance Control and Dynamics  
Active Disturbance Rejection After successful stabilization of the rigid-body mode and/or dominant flexible modes (as well as any other unstably inter- acting flexible modes), active disturbance rejection  ...  In the Appendix, a classical single-input single-output (SISO) control design approach is summarized, with special emphasis on the concept of periodic disturbance rejection using a dipole, which will be  ... 
doi:10.2514/3.11393 fatcat:q2rcbxx5s5c6fphytbvzjtxloq

Active noise control of a duct using robust control theory

J.C. Carmona, V.M. Alvarado
2000 IEEE Transactions on Control Systems Technology  
Extensive results have shown t h a t this approach is a relevant candidate to the narrow band problem in active noise control.  ...  In this paper, the control of sound propagation in a n air-handling duct is investigated.  ...  We propose a robust pole placement controller using the shaping of the sensitivity function because this allows us to choose t,he frequencies to be rejected and t.o adjust. the width of the rejected band  ... 
doi:10.1109/87.880596 fatcat:33cnwt2b2jd2nkozrcbr7q4sxy

Learning Feedforward Control Using Multiagent Control Approach for Motion Control Systems

Phong B. Dao
2021 Energies  
Using the advantages of MACS-based design approaches, a novel solution for advanced control of mechatronic systems has been developed in this paper.  ...  A case study using a simulated linear motor in the presence of nonlinear cogging and friction force as well as mass variations is used to illustrate the proposed method.  ...  Conflicts of Interest: The author declares no conflict of interest. Energies 2021, 14, 420  ... 
doi:10.3390/en14020420 fatcat:x7lkr3iztrbangswxcsh6qgbya

An Active Disturbance Rejection Control solution for hysteresis compensation

Frank J. Goforth, Zhiqiang Gao
2008 2008 American Control Conference  
An Active Disturbance Rejection Control (ADRC) is proposed herein whereby hysteresis with unknown characteristics is treated as disturbance and rejected.  ...  In place of the prevailing model inversion method, which requires detailed mathematical model of the hysteresis, the proposed active disturbance rejection approach offers an appealing alternative to hysteresis  ...  The Linear Active Disturbance Rejection Control demonstration illustrates the superior ease of implementation of this disturbance rejection strategy in compensating for hysteresis, versus the model based  ... 
doi:10.1109/acc.2008.4586819 dblp:conf/amcc/GoforthG08 fatcat:gllnb5p77nbcbmrj4327jfx3ua

Robust control of a DC motor

Ihechiluru Samuel Okoro, Clinton O. Enwerem
2020 Heliyon  
The approach is primarily founded on the opportunity of online estimation of all the disturbance inputs - known and unknown - which affects a DC motor utilizing suitable observers, and proceeding to reject  ...  This paper presents an observer-based active disturbance rejection control (ADRC) structure which achieves robust tracking performance, effective regulatory control, and negligible internal uncertainty  ...  Acknowledgements This work was a result of my visit to the Centre for Advanced Control Technologies, Cleveland State University, Ohio, USA, from August 2019 to January 2020.  ... 
doi:10.1016/j.heliyon.2020.e05777 pmid:33376824 pmcid:PMC7758373 fatcat:hz22gf3nmbhdbophadlngisi4u

Attitude control of a gyroscope actuator using event-based discrete-time approach

B. Boisseau, S. Durand, J.J. Martinez-Molina, T. Raharijaona, N. Marchand
2015 2015 International Conference on Event-based Control, Communication, and Signal Processing (EBCCSP)  
Practical results using a gyroscope actuator are presented and compared to a classical time-triggered controller.  ...  In this paper, a discrete state feedback Linear Quadratic Regulator (LQR) for event-triggered control is presented.  ...  Reducing the quantity of the data exchanged seems an interesting approach to improve the battery life by reducing the energy dedicated to communication.  ... 
doi:10.1109/ebccsp.2015.7300677 dblp:conf/ebccsp/BoisseauDMRM15 fatcat:g7ogzsxppbgbdkwdjzqtryonju

A NARX Model Reference Adaptive Control Scheme: Improved Disturbance Rejection Fractional-Order PID Control of an Experimental Magnetic Levitation System

Hossein Alimohammadi, Baris Baykant Alagoz, Aleksei Tepljakov, Kristina Vassiljeva, Eduard Petlenkov
2020 Algorithms  
Thus, the two-loop MRAC structure allows improvement of disturbance rejection performance without deteriorating precise set-point control and stability characteristics of the FOPID control loop.  ...  To demonstrate disturbance rejection performance improvements of the proposed multi-loop MRAC-FOPID control with NARX model, an experimental study is conducted for disturbance rejection control of magnetic  ...  The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.  ... 
doi:10.3390/a13080201 fatcat:4gamiz6gbra5retjkaxr5g2ubi

Classical and robust H(infinity) control redesign for the Hubble Space Telescope

Bong Wie, Qiang Liu, Frank Bauer
1993 Journal of Guidance Control and Dynamics  
Active disturbance rejection for the measured output is achieved by introducing a model of the disturbance inside the control loop.  ...  Active Disturbance Rejection After successful stabilization of the rigid-body mode (as well as any other unstably interacting flexible modes), active disturbance rejection is then simply achieved by introducing  ... 
doi:10.2514/3.21129 fatcat:w4c3po4ygnbjfnijidztic6oya

Data-driven adaptive model-based predictive control with application in wastewater systems

N.A. Wahab, J. Balderud, M.F. Rahmat, R. Katebi
2011 IET Control Theory & Applications  
The former method only requires a single QR decomposition for obtaining the controller parameters and uses a receding horizon approach to process input/output data for the identification.  ...  Abstract: This paper is concerned with the development of a new data-driven adaptive modelbased predictive controller (MBPC) with input constraints.  ...  The sampling rate of the MBPC controller and the activated sludge process is chosen as T s =1 hr.  ... 
doi:10.1049/iet-cta.2010.0068 fatcat:duup7edylrhrhaxw6my5bokzpa

Throughput rate control for an 802.15.4 wireless body area network using static and low order anti-windup techniques

Michael J. Walsh, Martin J. Hayes
2007 2007 Mediterranean Conference on Control & Automation  
Joint Quality of Service and optimal network power loss is demonstrated through simulation and verified practically using a mote based network.  ...  In this paper, low-order and static anti-windup control laws are used to enhance the performance of an 802.15.4 wireless sensor network.  ...  Using this approach the required linear controller was designed achieving a H ∞ norm γ of 1.4631 suggesting a maximum stability margin of 71% to the allowed coprime uncertainty. V.  ... 
doi:10.1109/med.2007.4433958 fatcat:7dj4r2nebbgavaz4lbmxnwcs6q

Anaerobic Digestion Process Control Using a Data-Driven Internal Model Control Method

Larisa Condrachi, Ramon Vilanova, Montse Meneses, Marian Barbu
2021 Energies  
The paper proposes a data-based Internal Model Control approach applied to an anaerobic digestion process.  ...  During the validation of the proposed control solution, the main operating conditions were analyzed, such as the setpoint tracking performance, the rejection of disturbance generated by variations in the  ...  Acknowledgments: The authors dedicate this paper to the memory of Emil Ceangă who was the initiator of the research on data-driven control at "Dunărea de Jos" University of Galaţi.  ... 
doi:10.3390/en14206746 fatcat:3t4gty5purhpzbiz26epexknii

Performance of higher harmonic control algorithms for helicopter vibration reduction

STEVEN R. HALL, NORMAN M. WERELEY
1993 Journal of Guidance Control and Dynamics  
It is shown that HHC is fundamentally similar to the sinusoidal disturbance rejection techniques of classical con- trol.  ...  ., ‘‘A New Approach for Active Control of Rotorcraft Vibration,’’ Journal of Guidance and Control, Vol. 5, No. 2, 1982, pp. 143-150. ‘Du Val, R. W., Gregory, C. Z., Jr., and Gupta, N.  ... 
doi:10.2514/3.21085 fatcat:t2easolbozhnbi7c7pl4n4w2t4

Novel Active Disturbance Rejection Control Based on Nested Linear Extended State Observers [article]

Wameedh R. Abdul-Adheem, Ibraheem K. Ibraheem
2019 arXiv   pre-print
In this paper, a Novel Active Disturbance Rejection Control (N-ADRC) strategy is proposed that replaces the Linear Extended state observer (LESO) used in Conventional ADRC (C-ADRC) with a Nested LESO.  ...  The stability of LESO and nested LESO is investigated using Lyapunov stability analysis.  ...  Section III briefly presents the concepts behind active disturbance rejection control (ADRC). A description of the proposed nested LESO and the relevant stability tests are included in section IV.  ... 
arXiv:1805.00505v3 fatcat:dt36zusab5d3fnovkqtjghu3tu

Practical Real-Time Implementation of a Disturbance Rejection Control Scheme for a Twin-Rotor Helicopter System Using Intelligent Active Force Control

Sherif I. Abdelmaksoud, Musa Mailah, Ayman M. Abdallah
2020 IEEE Access  
This paper centers around an experimental investigation into the effectiveness of an innovative hybrid control approach based on an intelligent active force control (IAFC) strategy to stabilize a twin-rotor  ...  INDEX TERMS Twin-rotor system, 2-DOF helicopter model, rotorcraft UAVs, active force control, intelligent system, iterative learning, experimental test rig, disturbance rejection.  ...  One promising strategy is to utilize an active disturbance rejection control (ADRC) approach to achieve the desired motions with the ability to fend off disturbances.  ... 
doi:10.1109/access.2020.3046728 fatcat:swwvuchrszfitgvlwpthauflji

Active Disturbance Rejection Approach For Robust Fault-Tolerant Control Via Observer Assisted Sliding Mode Control

John Cortés-Romero, Harvey Rojas-Cubides, Horacio Coral Enriquez, Hebertt Sira-Ramírez, Alberto Luviano-Juárez
2017 Zenodo  
This work proposes an active disturbance rejection approach for the establishment of a sliding mode control strategy in fault-tolerant operations.  ...  The core of the proposed active disturbance rejection assistance is a Generalized Proportional Integral (GPI) observer which is in charge of the active estimation of lumped nonlinear endogenous and exogenous  ...  Acknowledgments The authors gratefully acknowledge the support for the realization of this work from the following institutions: Universidad Nacional de Colombia, Cinvestav-IPN, and UPIITA-IPN.  ... 
doi:10.5281/zenodo.812251 fatcat:lx2g5jzolrd4vbwfs2voruc7ky
« Previous Showing results 1 — 15 out of 19,744 results