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Journal articles on the topic 'H∞ robust controller'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Petrus, Sutyasadi, and Bagus Wicaksono Martinus. "Robotic arm joint position control using iterative learning and mixed sensitivity H∞ robust controller." Bulletin of Electrical Engineering and Informatics 10, no. 4 (2021): 1864~1873. https://doi.org/10.11591/eei.v10ie.3059.

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This paper proposes an improved control strategy of a robotic arm joint using hybrid controller consist of H∞ robust controller and iterative learning controller. The main advantage of this controller is the simple structure that made it possible to be implemented on a small embedded system for frugal innovation in industrial robotic arm development. Although it has a simple structure, it is a robust H∞ controller that has robust stability and robust performance. The iterative learning controller makes the trajectory tracking even better. To test the effectiveness of the proposed m

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Al-Waily, Ramzy, and Ali Al-Thuwainy. "Designing robust Mixed H /H PID Controllers based Intelligent Genetic Algorithm." Iraqi Journal for Electrical and Electronic Engineering 7, no. 1 (2011): 25–34. http://dx.doi.org/10.37917/ijeee.7.1.6.

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It's not easy to implement the mixed / optimal controller for high order system, since in the conventional mixed / optimal feedback the order of the controller is much than that of the plant. This difficulty had been solved by using the structured specified PID controller. The merit of PID controllers comes from its simple structure, and can meets the industry processes. Also it have some kind of robustness. Even that it's hard to PID to cope the complex control problems such as the uncertainty and the disturbance effects. The present ideas suggests combining some of model control theories wit

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3

Aydin, Yücel. "Robust mixed H 2 /H ∞ optimal controller design." IFAC Proceedings Volumes 36, no. 7 (2003): 39–43. http://dx.doi.org/10.1016/s1474-6670(17)35804-4.

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Kaitwanidvilai, Somyot, and Manukid Parnichkun. "Genetic-Algorithm-Based Fixed-Structure Robust H∞Loop-Shaping Control of a Pneumatic Servosystem." Journal of Robotics and Mechatronics 16, no. 4 (2004): 362–73. http://dx.doi.org/10.20965/jrm.2004.p0362.

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The robust controller designed by conventional H∞optimal control is complicated, high-order, and difficult to implement practically. In industrial applications, structures such as lead-lag compensators and PID are widely used because their structure is simple, tuning parameters are fewer, and they are lower-order. Their disadvantages are that control parameters are difficult to tune for good performance and they lack robustness. To solve these problems, we propose an algorithma genetic-algorithm-based fixed-structure robust H∞loop-shaping controlfor designing the robust controller. Conventiona

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Shahad, Sami Ali. "Position control of ball and beam system using robust H∞ Loop shaping controller." Indonesian Journal of Electrical Engineering and Computer Science (IJEECS) 19, no. 1 (2020): 91–98. https://doi.org/10.11591/ijeecs.v19.i1.pp91-98.

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Laboratory Ball and Beam prototype (B&B) is a system designed to implement the controlling of space application studies such as aircraft flight and land. In this paper, to control the position of the rolling ball on the beam, MATLAB program will be used to design and implement PID and robust H∞ Loop Shaping controllers. The open loop response of the system is unstable, because the ball continuously rolling on the beam when a constant input applied. To stabilize the system, a PID controller used first to achieve the desired position. Then, robust H∞ Loop Shaping controller was u

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Martínez-Turégano, Jaime, Antonio Sala, Ramon Blasco-Gimenez, and Carlos Blanes. "Operation of DR–HVdc-Connected Grid-Forming Wind Turbine Converters Using Robust Loop-Shaping Controllers." Applied Sciences 14, no. 2 (2024): 881. http://dx.doi.org/10.3390/app14020881.

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Off-shore wind power plants can be connected to the on-shore grid using diode rectifier HVdc links. As diode rectifiers are passive converters, off-shore WPPs require grid-forming capability. This paper shows how to improve the WTG dynamic response and the voltage and current harmonic rejection by using H∞-based controllers. The paper explains how to synthesise three different H∞ voltage controllers: the first is a single-loop H∞ controller, the second is a cascaded H∞ controller and the third is a proportional–resonant controller that is optimised using H∞ synthesis. The three H∞-based contro

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Li, Cong, Hui Jing, Jiading Bao, Shanlin Sun, and Rongrong Wang. "Robust H∞ fault tolerant control for quadrotor attitude regulation." Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 232, no. 10 (2018): 1302–13. http://dx.doi.org/10.1177/0959651818780763.

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This article investigates the robust H∞ fault tolerant control of quadrotor attitude regulation. The hover stability is heavily dependent on the thrust forces generated by the four rotors of the quadrotor. If faults occur in the rotors, the quadrotor becomes unstable, and possibly out of control. To this end, this article proposes a robust H∞ fault tolerant control schema, consisting of two level controllers, for regulation of the quadrotor attitude. The functions of the upper level controller and lower level controller are to generate the desired control input, and obtain the real input of th

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Gormus, Bilal, Hakan Yazici, and İbrahim Beklan Küçükdemiral. "Robust H∞ control of an uncertain bilateral teleoperation system using dilated LMIs." Transactions of the Institute of Measurement and Control 44, no. 6 (2021): 1275–87. http://dx.doi.org/10.1177/01423312211049005.

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A robust state-feedback [Formula: see text] controller is proposed for an uncertain bilateral teleoperation system having norm-bounded parametric uncertainties on mass and damping coefficients of the considered master/slave system. The proposed method ensures robust stability and successful reference tracking and force reflection performance. While Lyapunov stability is used to ensures asymptotic stability, the [Formula: see text] norm from exogenous input to the controlled output is utilized in satisfying the reference tracking and force reflection. As two performance objectives and robust st

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Aidoud, Mohammed, Moussa Sedraoui, Abderrazek Lachouri, and Abdelhalim Boualleg. "A robustification of the two degree-of-freedom controller based upon multivariable generalized predictive control law and robust H∞ control for a doubly-fed induction generator." Transactions of the Institute of Measurement and Control 40, no. 3 (2016): 1005–17. http://dx.doi.org/10.1177/0142331216673425.

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A robustification method of primary two degree-of-freedom (2-DOF) controllers is proposed in this paper to control the wind turbine system equipped with a doubly-fed induction generator DFIG. The proposed robustification method should follow the following three step-procedures. First, the primary 2-DOF controller is designed through the initial form of the multivariable generalized predictive control MGPC law to ensure a good tracking dynamic of reference trajectories. Second, the robust [Formula: see text] controller is independently designed for the previous system to ensure good robustness

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Jang, Sohyun, and Nam-Hoon Jo. "Robust H∞Speed Controller Design for BLDC Motor." Journal of the Korean Institute of Illuminating and Electrical Installation Engineers 29, no. 10 (2015): 83–88. http://dx.doi.org/10.5207/jieie.2015.29.10.083.

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Salcedo-Hernández, José, Raul Rivas-Perez, and Javier Sotomayor-Moriano. "Design of a Dead-Time Compensator Robust H∞ State Feedback Temperature Controller for a Precalciner of a Cement Rotary Kiln." Applied Sciences 12, no. 5 (2022): 2594. http://dx.doi.org/10.3390/app12052594.

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A dead-time compensator robust H∞ state feedback controller (DTC-H∞-SFC) for the temperature control in a precalciner of a cement rotary kiln is designed. A mathematical model of the process under study with ARMAX structure was obtained. A dead-time compensator robust H∞ state feedback controller is therefore designed. The results of the comparative evaluation of the DTC-H∞-SFC vs. DTC+PI designed controllers showed that the DTC-H∞-SFC gives improved performance of the control system.

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Ali, Anwer J., Hayder H. Abbas, and Hassan Bevrani. "Comparative Analysis of H2 and H∞ Robust Control Design Approaches for Dynamic Control Systems." Journal of Engineering 29, no. 08 (2023): 1–15. http://dx.doi.org/10.31026/j.eng.2023.08.01.

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This paper discusses using H2 and H∞ robust control approaches for designing control systems. These approaches are applied to elementary control system designs, and their respective implementation and pros and cons are introduced. The H∞ control synthesis mainly enforces closed-loop stability, covering some physical constraints and limitations. While noise rejection and disturbance attenuation are more naturally expressed in performance optimization, which can represent the H2 control synthesis problem. The paper also applies these two methodologies to multi-plant systems to study the stabilit

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Yang, Guang-Hong, and Jian Liang Wang. "Nonfragile H∞ Output Feedback Controller Design for Linear Systems*." Journal of Dynamic Systems, Measurement, and Control 125, no. 1 (2003): 117–23. http://dx.doi.org/10.1115/1.1543157.

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This paper is concerned with the nonfragile H∞ controller design problem for linear time-invariant systems. The controller to be designed is assumed to have norm-bounded uncertainties. Design methods are presented for dynamic output (measurement) feedback. The designed controllers with uncertainty (i.e. nonfragile controllers) are such that the closed-loop system is quadratically stable and has an H∞ disturbance attenuation bound. Furthermore, these robust controllers degenerate to the standard H∞ output feedback control designs, when the controller uncertainties are set to zero.

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14

George, Koshy, Jang Gyu Lee, and Bohyung Lee. "Generalized Plants for H Robust Controller Design." Journal of Guidance, Control, and Dynamics 22, no. 2 (1999): 366–69. http://dx.doi.org/10.2514/2.4389.

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15

Oveisi, Atta, and Tamara Nestorović. "Robust nonfragile observer-based H2/H∞ controller." Journal of Vibration and Control 24, no. 4 (2016): 722–38. http://dx.doi.org/10.1177/1077546316651548.

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A robust nonfragile observer-based controller for a linear time-invariant system with structured uncertainty is introduced. The [Formula: see text] robust stability of the closed-loop system is guaranteed by use of the Lyapunov theorem in the presence of undesirable disturbance. For the sake of addressing the fragility problem, independent sets of time-dependent gain-uncertainties are assumed to be existing for the controller and the observer elements. In order to satisfy the arbitrary H2-normed constraints for the control system and to enable automatic determination of the optimal [Formula: s

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16

Zhang, Qiang, De-Zhi Xu, and Kang-Kang Zhan. "Model reference robust adaptive H ∞ controller design." International Journal of Control, Automation and Systems 15, no. 4 (2017): 1507–14. http://dx.doi.org/10.1007/s12555-016-0149-9.

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17

Ur Rahman, Muhammad Zia, Muhammad Tanveer Riaz, M. M. Sayed Al Mahmud, Mohsin Rizwan, and Muhammad Ahmad Choudhry. "The Prescribed Fixed Structure Intelligent Robust Control of an Electrohydraulic Servo System." Mathematical Problems in Engineering 2022 (March 8, 2022): 1–12. http://dx.doi.org/10.1155/2022/5144602.

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The paper is focused to design a robust and a simple fixed structure H ∞ control synthesis for an Electrohydraulic Servo System (EHSS) and comparing its performance with the conventional H ∞ controller and the classical proportional integral derivative (PID) controller. The precise position tracking of the piston load of EHSS system using classical PID controller is a difficult task due to some non-linear properties of EHSS and the dynamic behaviour of its parameters. The conventional H ∞ controllers also have constraints on gain ( H ∞ norm) for typical design requirement such as the speed of

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Xu, Ze Yin. "Non-Fragile Robust H∞ Control for Linear Uncertain Switched Systems with Delayed Perturbations." Advanced Materials Research 562-564 (August 2012): 1968–71. http://dx.doi.org/10.4028/www.scientific.net/amr.562-564.1968.

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The non-fragile robust H∞ controller was designed for a class of uncertain switched systems with delayed perturbations under additive perturbations of controller gain. A sufficient condition for the solvability of the non-fragile robust H∞ controller via state feedback was proved and presented, which based on a proper Lyapunov function and switching strategy, non-fragile robust H∞ controller can be obtained only by solving linear matrix inequalities. The systems under actions of the given controller are not only robust but also satisfy H∞ performance when controller changes, and thus have bett

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19

Hans, Sikander, and Smarajit Ghosh. "Position analysis of brushless direct current motor using robust fixed order H-infinity controller." Assembly Automation 40, no. 2 (2020): 211–18. http://dx.doi.org/10.1108/aa-05-2019-0084.

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Purpose The efficient speed controller is found to be an important requirement to run the motor for the brushless direct current (BLDC) motor. This requirement is considered as superior, as it may increase the operating speed and system efficiency. In the existing methods, proportional plus integral (PI) controller has been included because of its simple architecture. But the PI controller produces load disturbance, control complexity and some parametric (Proportional plus integral) variations. The purpose of this proposed controller is to overcome the problems produced by PI controller in BLD

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Kim, Dong Hwa, and Jae Hoon Cho. "Robust Tuning of PID Controller Using Bacterial-Foraging-Based Optimization." Journal of Advanced Computational Intelligence and Intelligent Informatics 9, no. 6 (2005): 669–76. http://dx.doi.org/10.20965/jaciii.2005.p0669.

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We propose a design approach to PID controllers with resistance to external disturbance in motor-controlled systems using a bacterial foraging-based optimal algorithm. PID controllers are used to operate AC motor drives because of their practical implementation and simple structure. Inexperienced personnel find it difficult, however, to achieve optimal PID gain because this is manually tuned by trial and error in industrial environments full of disturbances. To design disturbance-resistance tuning, we use disturbance-resistance conditions based on H∞ and calculcate response the performance bas

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21

Ali, Shahad Sami. "Position control of ball and beam system using robust h∞ loop shaping controller." Indonesian Journal of Electrical Engineering and Computer Science 19, no. 1 (2020): 91. http://dx.doi.org/10.11591/ijeecs.v19.i1.pp91-98.

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<p>Laboratory Ball and Beam prototype (B&amp;B) is a system designed to implement the controlling of space application studies such as aircraft flight and land. In this paper, to control the position of the rolling ball on the beam, MATLAB program will be used to design and implement PID and robust H<sub>∞ </sub>Loop Shaping controllers. The open loop response of the system is unstable, because the ball continuously rolling on the beam when a constant input applied. To stabilize the system, a PID controller used first to achieve the desired position. Then, robust H<sub

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N., J. Khlopenko. "CALCULATION AND DESIGN OF A ROBUST SPEED CONTROLLER OF A FREQUENCY-CONTROLLED INDUCTION ELECTRIC DRIVE." Electrical engineering & electromechanics, no. 3 (June 23, 2020): 31–36. https://doi.org/10.20998/2074-272X.2020.3.05.

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<strong><em>Purpose.</em></strong><strong><em> The aim of the work is the calculation and design of a robust speed controller of a frequency-controlled induction  electric drive with parametric uncertainty and the presence of interferences in the feedback channel. Methodology. The calculation and design of the controller was carried out in four stages. At the first stage, a linearized mathematical model of the control object with parametric uncertainty was constructed and the transfer function of the H∞-suboptimal controller was calculated in the Robust Control Toolbox using th

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Zhu, Shenjin, and Yuping He. "A Design Synthesis Method for Robust Controllers of Active Vehicle Suspensions." Designs 6, no. 1 (2022): 14. http://dx.doi.org/10.3390/designs6010014.

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This paper presents a design synthesis method for robust controllers of active vehicle suspensions (AVSs). Various control techniques have been applied to the design of AVSs for enhancing ride comfort and handling performance of ground vehicles. However, most of these model-based controller designs show poor robustness when the vehicle models are not accurate and operating conditions vary. To address the poor robustness problem of AVSs, a new controller is designed using the H∞ loop-shaping control technique. The controller targets robustness issues on vehicle models with parametric uncertaint

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Ilten, Erdem. "Fractional Order Weighted Mixed Sensitivity-Based Robust Controller Design and Application for a Nonlinear System." Fractal and Fractional 7, no. 10 (2023): 769. http://dx.doi.org/10.3390/fractalfract7100769.

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This paper focuses on fractional-order modeling and the design of a robust speed controller for a nonlinear system. An induction motor (IM), widely used in Electrical Vehicles (EVs), is preferred in this study as a well-known nonlinear system. The major challenge in designing a robust speed controller for IM is the insufficiency of the machine model due to inherent machine dynamics. Fractional calculus is employed to model the IM using the small-signal method, accounting for model uncertainties. In this context, experimental data is approximated using a fractional-order small-signal transfer f

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Zhang, Zhong Jie. "A Robust Controller for Positioning Control of Pneumatic Servo System: Design and Experiment Tests." Applied Mechanics and Materials 668-669 (October 2014): 423–27. http://dx.doi.org/10.4028/www.scientific.net/amm.668-669.423.

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The pneumatic cylinders are difficult to be controlled due to flow characteristics of control valves, compressibility of air, and static and dynamic friction forces. This paper describes the development of a robust controller based on H∞ control theory for positioning control of a high-speed pneumatic cylinder. To design the H∞ controller, one has selected appropriate weighting functions of pneumatic servo system.Simulation results show that the system is robust during the whole response process and can suppress the disturbance. Finally experiments have been performed with varying supply press

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Wu, Guo Qing, Yu Mei Zhang, Wei Nan Zhu, and Jing Ling Zhou. "Simulation and Experiment Based on the Mixed Robust Optimal and H_∞ Controller of PMLSM." Advanced Materials Research 148-149 (October 2010): 974–78. http://dx.doi.org/10.4028/www.scientific.net/amr.148-149.974.

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There are many uncertain sensitive issues such as parameter disturbance and edge effect when PMLSM running. In order to solve these problems, a method called mixed robust optimal and H controller is presented. Robust optimal and H∞ control strategy is made use to design the mixed robust optimal and H controller of PMLSM. Large external disturbance and internal nonlinear perturbations can well be eliminated by this controller, and it’s easy to be practiced. MATLAB/SIMULINK is made use to simulate the system. With the help of PMAC board and COPLY controller permanent brushless motor controller

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BAŞAK, Hasan. "Design and Analyse of Structured H-infinity Controller for Level Control of Nonlinear Quadruple Tank Systems." Karadeniz Fen Bilimleri Dergisi 12, no. 2 (2022): 802–20. http://dx.doi.org/10.31466/kfbd.1159167.

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Industrial process systems operate by interacting with each other to fulfil an essential industrial task. The majority of processes have nonlinear dynamics and multiple-input multiple-output systems which make them even more difficult to design control schemes. In industrial process applications, level control is one of the important problems. This study computes a structured H-infinity controller for the level control of a nonlinear quadruple tank system. This study aims to design a simple (low-order) robust controller and compare its performance to the performance of the classical Proportion

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Petrović, T. B., and A. T. Juloski. "Robust H∞ controller design for current mode controlled dc/dc converters." Electrical Engineering 82, no. 2 (1999): 83–88. http://dx.doi.org/10.1007/s002020050079.

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Руднєв, Є. С., O. O. Тимофєєва, and Р. М. Брожко. "Synthesis of a robust control system for two-mass electric drive by H∞-theory." ВІСНИК СХІДНОУКРАЇНСЬКОГО НАЦІОНАЛЬНОГО УНІВЕРСИТЕТУ імені Володимира Даля, no. 7 (263) (December 10, 2020): 44–48. http://dx.doi.org/10.33216/1998-7927-2020-263-7-44-48.

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The practice of designing and operating control systems for industrial facilities has shown that systems synthesized according to the criteria of modular and symmetric optima, as well as by quadratic quality criteria, are sensitive to changes in the parameters of the controlled object, incoming characteristics, disturbing influences, the structure and parameters of the object model changing, which used in control loops. Such systems can lose optimality as well as productivity, if information about the object and operating environment is known with some probability or uncertainty. For an indust

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Petrus, Sutyasadi, and Bagus Wicaksono Martinus. "Joint control of a robotic arm using particle swarm optimization based H2/H∞ robust control on arduino." TELKOMNIKA Telecommunication, Computing, Electronics and Control 18, no. 2 (2020): 1021–29. https://doi.org/10.12928/TELKOMNIKA.v18i2.14749.

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This paper proposes a small structure of robust controller to control robotic arm’s joints where exist some uncertainties and unmodelled dynamics. Robotic arm is widely used now in the era of Industry 4.0. Nevertheless, the cost for an industry to migrate from a conventional automatic machine to industrial robot still very high. This become a significant challenge to middle or small size industry. Development of a low cost industrial robotic arm can be one of good solutions for them. However, a low-cost manipulator can bring more uncertainties. There might be exist more unmodelled dynami

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Zhang, Chuan Wei. "Experiment of H_∞ Driving Control System for Electric Vehicle." Applied Mechanics and Materials 20-23 (January 2010): 215–19. http://dx.doi.org/10.4028/www.scientific.net/amm.20-23.215.

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This paper discusses different drive control methods of electric vehicle (EV), presents the design of H∞ robust controller for driving control, with the consideration of protecting the battery. Research work is done under different conditions namely variable battery voltage and variable load rotational inertia separately. Experiments show that the H∞ robust controller has better performance than the PID controller in both steady-state tracking error and response speed. Moreover, the H∞ robust controller can improve the drive range of electric vehicle.

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Abd Al Kareem Mohammed, Shatha, and Ali Hussien Mary. "Robust Low Pass Filter-PID Controller for 2-DOF Helicopter System." Iraqi Journal for Electrical and Electronic Engineering 21, no. 1 (2024): 36–43. http://dx.doi.org/10.37917/ijeee.21.1.4.

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In this article, a robust control technique for 2-DOF helicopter system is presented. The 2-DOF helicopter system is 2 inputs and 2 outputs system that is suffering from the high nonlinearity and strong coupling. This paper focuses on design a simple, robust, and optimal controller for the helicopter system. Moreover, the proposed control method takes into account effects of the measurement noise in the closed loop system that effect on the performance of controller as well as the external disturbance. The proposed controller combines low pass filter with robust PID controller to ensure good t

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Vu, Van Tan, and Ngoc Tuan Vu. "Effect of Suspension Roll Angle Sensors on the Performance of H∞ Active Antiroll Bar Control System of Trucks." Mathematical Problems in Engineering 2023 (January 17, 2023): 1–18. http://dx.doi.org/10.1155/2023/2715787.

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The rollover phenomenon is quite familiar with trucks and often has severe consequences worldwide. This article focuses on developing a new control structure for the active antiroll bar system using the robust control method. The main objective is to improve the vehicle’s roll stability by using additional suspension roll angle sensors. First, a truck model equipped with an active antiroll bar system is introduced. Then, the basic robust controller structure diagram is described in detail. Based on this basic robust controller, the authors develop a new robust controller considering the suspen

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Benner, Peter, Jan Heiland, and Steffen W. R. Werner. "Robust output-feedback stabilization for incompressible flows using low-dimensional $$\mathcal {H}_{\infty }$$-controllers." Computational Optimization and Applications 82, no. 1 (2022): 225–49. http://dx.doi.org/10.1007/s10589-022-00359-x.

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AbstractOutput-based controllers are known to be fragile with respect to model uncertainties. The standard $$\mathcal {H}_{\infty }$$ H ∞ -control theory provides a general approach to robust controller design based on the solution of the $$\mathcal {H}_{\infty }$$ H ∞ -Riccati equations. In view of stabilizing incompressible flows in simulations, two major challenges have to be addressed: the high-dimensional nature of the spatially discretized model and the differential-algebraic structure that comes with the incompressibility constraint. This work demonstrates the synthesis of low-dimension

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Degtyarev, G. L., R. N. Faizutdinov, and I. O. Spiridonov. "Multiobjective Robust Controller Synthesis for Nonlinear Mechanical System." Mekhatronika, Avtomatizatsiya, Upravlenie 19, no. 11 (2018): 691–98. http://dx.doi.org/10.17587/mau.19.691-698.

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In the paper multiobjective robust controller synthesis problem for nonlinear mechanical system described by Lagrange’s equations of the second kind is considered. Such tasks have numerous practical applications, for example in controller design of robotic systems and gyro-stabilized platforms. In practice, we often have to use uncertain mathematical plant models in controller design. Therefore, ensuring robustness in presence of parameters perturbations and unknown external disturbances is an important requirement for designed systems. Much of modern robust control theory is linear. When the

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Ozana, S., and M. Pies. "Application of H-infinity Robust Controller on PAC." IFAC Proceedings Volumes 43, no. 24 (2010): 126–31. http://dx.doi.org/10.3182/20101006-2-pl-4019.00025.

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Tijani, Ismaila B., Rini Akmeliawati, Ari Legowo, Agus Budiyono, and A. G. Abdul Muthalif. "H∞robust controller for autonomous helicopter hovering control." Aircraft Engineering and Aerospace Technology 83, no. 6 (2011): 363–74. http://dx.doi.org/10.1108/00022661111173243.

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Karimi, Alireza, and Yuanming Zhu. "Robust H ∞ Controller Design Using Frequency-Domain Data." IFAC Proceedings Volumes 47, no. 3 (2014): 4921–26. http://dx.doi.org/10.3182/20140824-6-za-1003.01802.

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Lashhab, Fadel, Kevin Moore, Tyrone Vincent, Deyuan Meng, and Khalid Kuwairi. "Robust H∞ controller design for dynamic consensus networks." International Journal of Control 91, no. 8 (2017): 1906–19. http://dx.doi.org/10.1080/00207179.2017.1334268.

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Carreño, J. J., and R. Villamizar. "Robust Control of Robot Manipulator based on QFT and H∞." International Journal of Mathematics and Computers in Simulation 16 (January 9, 2022): 17–22. http://dx.doi.org/10.46300/9102.2022.16.4.

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Robust controllers have been developed by both control techniques QFT and H∞ applied in the waist, shoulder and elbow of a manipulator of 6 degrees of freedom. The design is based on the identification of a linear model of the robot dynamics which represents the non-linearity of the system using parametric uncertainty. QFT control methodology is used to tune the robust PID-controller and pre-filters of the system, and H∞ controllers are obtained by designing the weighting functions and using the MATLAB hinfopt tool. Finally the performance of robust controllers is compared designed based on th

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Ammar, Issa ismael, E.Jumaa Lafta, and Khamas Nisreen. "Design of H∞ for induction motort." International Journal of Power Electronics and Drive System (IJPEDS) 11, no. 1 (2020): 24–33. https://doi.org/10.11591/ijpeds.v11.i1.pp24-33.

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For Induction motor is a system that works at their speed, nevertheless there are applications at which the speed operations are needed. The control of range of speed of induction motor techniques is available. The robust control is used with induction motor and the performance of the system with the controller will be improved. The mathematical model to the controller, which were coded in MATLAB. The modeling and controller will be shown by the conditions of robustness of H∞ be less than one.

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Caiado, Daniela V., João M. Lemos, and Bertinho A. Costa. "Robust control of depth of anesthesia based on H∞ design." Archives of Control Sciences 23, no. 1 (2013): 41–59. http://dx.doi.org/10.2478/v10170-011-0041-z.

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Abstract This paper presents a case study on the design of a robust controller for the depth of anesthesia (DoA) induced by the drug propofol. This process is represented by a linear model together with a non-parametric uncertainty description that is evaluated using a patient model bank with 20 patients undergoing sedation. By using H∞ methods, the controller is aimed to comply with robust stability and performance specifications for the class of patient models considered. A minimization problem of sensitivity and complementary sensitivity is made to design the controller. The controller that

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Watanabe, Toru, and Kazuo Yoshida. "Robust Control for a Flexible Structure Possessing Transverse-Torsional Coupled Vibration." Journal of Robotics and Mechatronics 6, no. 3 (1994): 237–42. http://dx.doi.org/10.20965/jrm.1994.p0237.

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In this paper robust stability and robust performance between an ordinary H-infinity controller and μ-controller are compared for the case of vibration control of a flexible structure using two active dynamic vibration absorbers. The structure possesses eight transverse-torsional coupled vibration modes, and the aim of this study is to reduce transverse and torsional vibrations simultaneously. After some control experiments were carried out, it was confirmed that the μ-controller shows better robust stability and robust performance than an ordinary H-infinity controller

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Wang, Wan Qiang, Hui Peng Chen, and Guo Jin Chen. "H∞ Robust Control for the Motion of Loader Working Device." Advanced Materials Research 452-453 (January 2012): 527–32. http://dx.doi.org/10.4028/www.scientific.net/amr.452-453.527.

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This paper has set up the electro-hydraulic servo mathematical model for loader working device and devises a device motion controller with H∞ mixed sensitivity algorithm in order to improve loader’s automaticity and maneuvering performance. This paper has done some simulation research of the servo motion controller with Matlab/Simulink. And research has shown that the H∞ robust controller may improve working device’s automaticity and maneuvering performance enormously, the device motion controller has well robust stability and performance.

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Zhu, Qixin, Lei Xiong, Hongli Liu, Yonghong Zhu, and Guoping Zhang. "Robust Two-degree-of-freedom Control Based on H∞ Method for PMSM Drive System." Recent Advances in Electrical & Electronic Engineering (Formerly Recent Patents on Electrical & Electronic Engineering) 13, no. 4 (2020): 496–506. http://dx.doi.org/10.2174/2352096512666190319164237.

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Background: The conventional method using one-degree-of-freedom (1DOF) controller for Permanent Magnet Synchronous Motor (PMSM) servo system has the trade-off problem between the dynamic performance and the robustness. Methods: In this paper, by using H∞ control theory, a novel robust two-degree-of-freedom (2DOF) controller has been proposed to improve the position control performance of PMSM servo system. Using robust control theory and 2DOF control theory, a H∞ robust position controller has been designed and discussed in detail. Results: The trade-off problem between the dynamic performance

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Keskin, Rıdvan, Ibrahim Aliskan, and Ersin Daş. "Robust structured controller synthesis for interleaved boost converters using an H∞ control method." Transactions of the Institute of Measurement and Control 43, no. 14 (2021): 3169–80. http://dx.doi.org/10.1177/01423312211019560.

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The regulation of output voltage and equivalent distribution of phase currents of multi-phase converters which have non-minimum phase characteristic are still challenges, especially in the presence of uncertainties in real parameters, duty cycle, input voltage, and load disturbances. However, in classical third-order integral-lead (Type-III) controller design methodologies, the controller is synthesized considering only the nominal performance conditions. This paper proposes a structured [Formula: see text] synthesis framework based on an optimization methodology to the design of a robust Type

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López, J., R. Dormido, S. Dormido, and J. P. Gómez. "A RobustH∞Controller for an UAV Flight Control System." Scientific World Journal 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/403236.

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The objective of this paper is the implementation and validation of a robustH∞controller for an UAV to track all types of manoeuvres in the presence of noisy environment. A robust inner-outer loop strategy is implemented. To design theH∞robust controller in the inner loop,H∞control methodology is used. The two controllers that conform the outer loop are designed using theH∞Loop Shaping technique. The reference vector used in the control architecture formed by vertical velocity, true airspeed, and heading angle, suggests a nontraditional way to pilot the aircraft. The simulation results show th

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Urrea-Quintero, Jorge-Humberto, Nicolás Muñoz-Galeano, and Jesús M. López-Lezama. "Robust Control of Shunt Active Power Filters: A Dynamical Model-Based Approach with Verified Controllability." Energies 13, no. 23 (2020): 6253. http://dx.doi.org/10.3390/en13236253.

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This paper presents the robust control of Three-Leg Split-Capacitor Shunt Active Power Filters (TLSC SAPFs) by means of structured H∞ controllers for reactive, unbalanced, and harmonic compensation and the DC-link bus voltage regulation. Robust controller synthesis is performed based on the TLSC SAPF dynamical model including power losses in passive elements. Before the control implementation, a systematic procedure for the nonlinear controllability verification of the converter and its quantification using the set-theoretic approach is presented. Controllability verification serves to accurat

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Moutsopoulou, Amalia, Markos Petousis, Georgios E. Stavroulakis, Anastasios Pouliezos та Nectarios Vidakis. "μ-Analysis and μ-Synthesis Control Methods in Smart Structure Disturbance Suppression with Reduced Order Control". Algorithms 17, № 2 (2024): 73. http://dx.doi.org/10.3390/a17020073.

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In this study, we created an accurate model for a homogenous smart structure. After modeling multiplicative uncertainty, an ideal robust controller was designed using μ-synthesis and a reduced-order H-infinity Feedback Optimal Output (Hifoo) controller, leading to the creation of an improved uncertain plant. A powerful controller was built using a larger plant that included the nominal model and corresponding uncertainty. The designed controllers demonstrated robust and nominal performance when handling agitated plants. A comparison of the results was conducted. As an example of a general smar

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Yousif, Salwan Y., and Mohamed J. Mohamed. "Design of Robust Fopi-Fopd Controller for Maglev System Using Particle Swarm Optimization." Engineering and Technology Journal 39, no. 4A (2021): 663–67. http://dx.doi.org/10.30684/etj.v39i4a.1956.

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Magnetic Levitation System (MLS) is one of the benchmark laboratories models for designing and testing feedback control systems in the presence of the parametric uncertainties and disturbances effect. Therefore, the MLS can be regarded as a tool to study and verify a certain robust controller design. In this paper, two types of powerful control schemes are presented to control the MLS. The first controller is a robust PI-PD controller, while the other is a robust fractional order FOPI-FOPD controller which provides two extra degrees of freedom to the system. In both controller design procedure

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