Literatura académica sobre el tema "Disturbance attenuation"

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Artículos de revistas sobre el tema "Disturbance attenuation"

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Martínez-García, Juan Carlos. "Combining Disturbance Decoupling with Disturbance Attenuation". IFAC Proceedings Volumes 31, n.º 18 (julio de 1998): 697–702. http://dx.doi.org/10.1016/s1474-6670(17)42072-6.

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Yi, Yang, Lubing Xu, Hong Shen y Xiangxiang Fan. "Disturbance observer-based L1 robust tracking control for hypersonic vehicles with T-S disturbance modeling". International Journal of Advanced Robotic Systems 13, n.º 6 (16 de noviembre de 2016): 172988141667111. http://dx.doi.org/10.1177/1729881416671117.

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This article concerns a disturbance observer-based L1 robust anti-disturbance tracking algorithm for the longitudinal models of hypersonic flight vehicles with different kinds of unknown disturbances. On one hand, by applying T-S fuzzy models to represent those modeled disturbances, a disturbance observer relying on T-S disturbance models can be constructed to track the dynamics of exogenous disturbances. On the other hand, L1 index is introduced to analyze the attenuation performance of disturbance for those unmodeled disturbances. By utilizing the existing convex optimization algorithm, a disturbance observer-based proportional-integral-controlled input is proposed such that the stability of hypersonic flight vehicles can be ensured and the tracking error for velocity and altitude in hypersonic flight vehicle models can converge to equilibrium point. Furthermore, the satisfactory disturbance rejection and attenuation with L1 index can be obtained simultaneously. Simulation results on hypersonic flight vehicle models can reflect the feasibility and effectiveness of the proposed control algorithm.
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Hagiwara, Takaaki, Kou Yamada, Iwanori Murakami, Yoshinori Ando, Shun Matsuura y Satoshi Aoyama. "An Application of the Modified PID Control System for Heat Flow Experiment". International Journal of Automation Technology 4, n.º 5 (5 de septiembre de 2010): 469–76. http://dx.doi.org/10.20965/ijat.2010.p0469.

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The Proportional-Integral-Derivative (PID) controller structure is the most widely used in industrial applications thanks to its structural simplicity and applicability in solving practical control problems. It is not, however, almighty. Yamada and Hagiwara proposed design modified PID controllers to make control for any plant stable and make admissible sets of P, I, and D parameters mutually independent. Applying modified PID control to practical plants requires that the influence of disturbance in the plant be considered. In many cases, this disturbance is unknown, making it difficulty to attenuate. Although designs have been proposed for modified PID control to attenuate unknown disturbances, little has been done in examining the attenuation of unknown disturbances. We demonstrate the effectiveness of modified PID control in attenuating unknown disturbances for temperature control in heat flow experiments.
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Xiong, Ping, Han Lin He y Jian Jun Tu. "Disturbance Attenuating Control for Cellular Neural Networks with Time-Varying Delays". Applied Mechanics and Materials 278-280 (enero de 2013): 1242–46. http://dx.doi.org/10.4028/www.scientific.net/amm.278-280.1242.

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The problem of disturbance attenuating controller design for delayed cellular neural networks (DCNNs) is considered. Via combining four different states cases in DCNNs and applying Razumikhin function analysis, a feedback control law in the form of linear matrix inequality (LMI) is derived for guaranteeing disturbance attenuation of the closed systems. Finally, a numerical example of DCNNs is given to indicate the effectiveness of the proposed disturbance attenuating control.
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Liu, H., L. Guo y Y. Zhang. "Composite attitude control for flexible spacecraft with simultaneous disturbance attenuation and rejection performance". Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 226, n.º 2 (9 de septiembre de 2011): 154–61. http://dx.doi.org/10.1177/0959651811415757.

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In this paper, a composite attitude control approach for orbiting spacecraft with rigid central hubs and flexible appendages is presented. The established attitude control model consists of the vibration modes excited by the rigid body, the space environment disturbances, the measurement noises, and the model uncertainty. The model is formulated into a dynamic system with two types of disturbance inputs. A composite control law with the simultaneous disturbance attenuation and rejection performance is presented for the flexible spacecraft system subject to multiple disturbances. The disturbance-observer-based control is designed for feedforward compensation of the elastic vibration. The H∞ state-feedback controller is designed to perform the robust attitude control in the presence of the space environment disturbances, measurement noises, and the model uncertainty. Numerical simulations show that the performance of the attitude control systems can be improved by combining the disturbance observer with H∞ state-feedback control.
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Muresan, Cristina I., Isabela R. Birs, Dana Copot, Eva H. Dulf y Clara M. Ionescu. "Fractional-Order PI Controller Design Based on Reference–to–Disturbance Ratio". Fractal and Fractional 6, n.º 4 (15 de abril de 2022): 224. http://dx.doi.org/10.3390/fractalfract6040224.

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The presence of disturbances in practical control engineering applications is unavoidable. At the same time, they drive the closed-loop system’s response away from the desired behavior. For this reason, the attenuation of disturbance effects is a primary goal of the control loop. Fractional-order controllers have now been researched intensively in terms of improving the closed-loop results and robustness of the control system, compared to the standard integer-order controllers. In this study, a novel tuning method for fractional-order controllers is developed. The tuning is based on improving the disturbance attenuation of periodic disturbances with an estimated frequency. For this, the reference–to–disturbance ratio is used as a quantitative measure of the control system’s ability to reject disturbances. Numerical examples are included to justify the approach, quantify the advantages and demonstrate the robustness. The simulation results provide for a validation of the proposed tuning method.
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Djouadi, S. M. y G. Zames. "On optimal robust disturbance attenuation". Systems & Control Letters 46, n.º 5 (agosto de 2002): 343–51. http://dx.doi.org/10.1016/s0167-6911(02)00148-2.

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KNOBLOCH, HANS W. "DISTURBANCE ATTENUATION IN CONTROL SYSTEMS". International Game Theory Review 07, n.º 03 (septiembre de 2005): 261–83. http://dx.doi.org/10.1142/s0219198905000521.

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The paper deals with standard mathematical models for nonlinear affine control systems with two (vector-valued) inputs u (=control) and w (unknown except for a bound for the sup-norm). Interpretation of this scenario and its wide range of applications (in control and differential game theory): See the introduction. The main result of the paper is the presentation of a dissipation equality which seems to be new and which is the result of a special control strategy (discretized state feedback, see the introduction). Combination with Lyapunov techniques leads to a concrete proposal for stabilizing disturbed control system. The mathematical background — which is worked out in detail — amounts to an explicit integration of the Hamilton-Jacobi partial differential equation via the method of characteristics.
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Pagilla, Prabhakar R., Ramamurthy V. Dwivedula, Yongliang Zhu y Lokukaluge P. Perera. "Periodic Tension Disturbance Attenuation in Web Process Lines Using Active Dancers". Journal of Dynamic Systems, Measurement, and Control 125, n.º 3 (1 de septiembre de 2003): 361–71. http://dx.doi.org/10.1115/1.1590678.

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This paper investigates the role of active dancers in attenuation of web tension disturbances in a web process line. A general structure of the active dancer is considered; governing equations for web spans upstream and downstream to the dancer roller are developed. A structural limitation that facilitates efficient design of the active dancer system for web tension disturbance attenuation is derived and discussed based on the developed model. An open-architecture experimental web platform is developed for conducting real-time control experiments using the active dancer system. The active dancer system model is experimentally identified using the standard system identification techniques available in literature. Three types of control designs were investigated for the active dancer system: a proportional-integral-derivative controller, an internal model based controller, and a linear quadratic optimal controller. Data collected from a series of experiments using the three control designs validate the usefulness of the active dancers in attenuating web tension disturbances in a web process line. A representative sample of the experimental data is presented and discussed.
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Black, R. A. y T. V. How. "Attenuation of Flow Disturbances in Tapered Arterial Grafts". Journal of Biomechanical Engineering 111, n.º 4 (1 de noviembre de 1989): 303–10. http://dx.doi.org/10.1115/1.3168383.

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Flow disturbances in tapered arterial grafts of angles of taper between 0.5 and 1.0 deg were measured in vitro using a pulsed ultrasound Doppler velocimeter. The increase in transition Reynolds numbers with angle of taper and axial distance was determined for steady flow. The instantaneous centerline velocities were measured distal to a 50 percent area stenosis (as a model of a proximal anastomosis), in steady and pulsatile flow, from which the disturbance intensities were calculated. A significant reduction in post-stenotic disturbance intensity was recorded in the tapered grafts, relative to a conventional cylindrical graft. In pulsatile flow with a large backflow component, however, there was an increase in disturbance intensity due to diverging flow during flow reversal. This was observed only in the 1.0 deg tapered graft. These findings indicate that taper is an important consideration in the design of vascular prostheses.
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Tesis sobre el tema "Disturbance attenuation"

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Yamamoto, Kaoru. "Disturbance Attenuation in Mass Chains with Passive Interconnection". Thesis, University of Cambridge, 2016. https://www.repository.cam.ac.uk/handle/1810/279020.

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This thesis is concerned with disturbance amplification in interconnected systems which may consist of a large number of elements. The main focus is on passive control of a chain of interconnected masses where a single point is subject to an external disturbance. The problem arises in the design of multi-storey buildings subjected to earthquake disturbances, but applies in other situations such as bidirectional control of vehicle platoons. It is shown that the scalar transfer functions from the disturbance to a given intermass displacement can be represented as a complex iterative map. This description is used to establish uniform boundedness of the H∞-norm of these transfer functions for certain choices of interconnection impedance. A graphical method for selecting an impedance such that the H∞-norm is no greater than a prescribed value for an arbitrary length of the mass chain is given. A design methodology for a fixed length of the mass chain is also provided. A case study for a 10-storey building model demonstrates the validity of this method.
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Lin, Haomin. "Disturbance attenuation in precise hexapod pointing control using positive force feedback". Laramie, Wyo. : University of Wyoming, 2005. http://proquest.umi.com/pqdweb?did=990288531&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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Niziolomski, Joanna. "Optimising soil disturbance and mulch attenuation for erosion and runoff control in asparagus crops". Thesis, Cranfield University, 2014. http://dspace.lib.cranfield.ac.uk/handle/1826/9209.

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Exposure of bare soil for long periods and onsite compaction create soil and water problems in asparagus production. This project aims to develop a cost effective and practical runoff and soil erosion management system. Two field trials (Phase 1 running from April - July 2012 and Phase 2 running from May - November 2013) tested different combinations of shallow soil disturbance (SSD) and mulch (straw and compost) application for soil erosion control. Cranfield University’s soil bin was used to test the effect of different tine configurations on soil disturbance. The results of this research corroborated observations that asparagus production can result in levels of unsustainable soil loss that will contribute to the degradation of the existing soil resource. The field trials demonstrated that a straw mulch applied at 6 t ha- 1 significantly improved key performance indicators (KPIs, i.e. runoff initiation, volume and rate; total soil loss; sediment concentration; total oxides of nitrogen; orthophosphate-P; and sediment-bound P) as compared with the Non-SSD Control. In general, SSD (irrespective of tine configuration) was ineffective at improving key performance indicators as compared with the Non-SSD Control. In the soil bin work, different tine configurations generated varying degrees and extent of SSD, with the modified para-plough giving the greatest soil disturbance for the least draught force. However, the differences in SSD observed in the soil bin had no effect on the KPI’s tested in the Phase 2 field trial. The effective treatments observed in the field trials only yielded cost savings to the farmer/grower when a high level of soil loss occurred. This research highlights the need to develop erosion control measures in asparagus fields, with wider implications to other row crops. However caution is needed, given the observed variation in effectiveness and reliability of in-field mitigation measures, especially during ‘extreme’ rainfall events.
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Hatlevik, Edvin. "Heave disturbance attenuation in managed pressure drilling from a floating platform using model predictive control". Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for teknisk kybernetikk, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-25958.

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Since a large part of the Norwegian oil shelf has been active for over a generation, many fields begin to be depleted and the drilling operations requires tight down hole pressure margins. And by improving the pressure control for the drilling operations former undrillable wells becomes drillable. Which will make the the oilfields more profitable, and extend their life expectancy. It will also make drilling operations safer by preventing kicks and preventing environmental damages caused by mud leaking into the pore space.\\\\One of the most critical phases when drilling from a floating drilling rig in terms of down hole, is pipe connection. During this procedure the conventional heave compensation is not operational as the drill string is climbed to the drill floor. Consequently the drill bit functions as a piston creating large pressure variations in the drill bit pressure. To control this pressure and create disturbance attention a linear model predictive controller with feedback linearisztion is created using feedback linearization. This controller shows promising results when feedforward with future predictions is applied. Without future predictions the results are the same as for an MPC without feedforward. Because only the topside pressure is known the rest of the states are estimated using a Kalman filter, which shows good results on the state estimations. To make the system more applicable in real life applications an efficient linear model predictive controller implementation was created for a PLC with great results, both in terms of calculation time and memory usage.
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CHEN, YU. "ADAPTIVE CONTROL FOR TRACKING AND DISTURBANCE ATTENUATION FOR SISO LINEAR SYSTEMS WITH REPEATED NOISY MEASUREMENTS". University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1070579983.

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Foo, Jong Teck. "Selection of controller gains for an electromagnetic suspension system". Ohio : Ohio University, 1993. http://www.ohiolink.edu/etd/view.cgi?ohiou1175287253.

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Motaghedi, Pejmun. "Attenuation of disturbances on an earth observing satellite". Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/49614.

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Vivek, Venugopal. "The efficacy of mindfulness-based meditation in attenuating sleep disturbances among high trait ruminators". Thesis, Kent State University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3618844.

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Negative affect is widely recognized as a common precipitant of both subjective and objective sleep disturbances (Vandekerckhove & Cluydts, 2010). Since repetitive thought forms such as rumination can sustain negative affect states, they may play a critical role in the etiology of sleep impairment. However, extant research suffers from a number of methodological shortcomings, including a lack of objective sleep assessment and 'first-night' effects. Further, this literature has yet to adequately address the treatment implications of the association between rumination and sleep. Mindfulness-based meditation has emerged as a favorable candidate for such an intervention in recent years (Carney & Segal, 2005). Therefore, the present studies aimed to investigate the association between rumination and sleep outcomes using a multi-method approach to sleep assessment. The efficacy of mindfulness-based meditation in extinguishing rumination and improving sleep was also explored.

A sample of 42 university students who scored high on a trait-level measure of rumination participated in two, week-long studies. Participants provided informed consent, received an actiwatch, and were randomly assigned to either a mindfulness or distraction group before the studies began. During Study 1, participants in both groups completed brief, electronic questionnaires assessing daily levels of rumination just prior to bedtime. Immediately after waking, participants reported the duration and quality of sleep they experienced the previous night. Analyses revealed that daily rumination (z = 2.44; p < .05) was significantly associated with actigraphy-based sleep-onset latency (SOL), but not with total sleep time (TST) or sleep efficiency (SE). Daily rumination was also significantly associated with self-reported SOL (z = 3.18; p < .01) and SQ (z = 2.39; p < .01), but not with TST.

During Study 2, participants in the mindfulness and distraction groups partook respectively in a mindfulness- or distraction-induction task immediately after the nightly questionnaires. A significant effect emerged between group membership and actigraphy-based SOL (z = - 2.13; p < .05), diary-based TST (z = 2.38; p < .05), and diary-based SQ (z = - 2.88; p < .05), with the mindfulness group reporting better sleep outcomes. With respect to within-person effects over the course of the two studies, the mindfulness group exhibited shorter actigraphy-based SOL (z = - 2.30; p < .05), higher actigraphy-based SE (z = 6.54; p < .01), and higher diary-based SQ (z = - 2.22, p < .05) during Study 2 than during Study 1. There were no significant differences in any sleep outcome between Studies 1 and 2 for the distraction group.

These data suggest that rumination is associated with both subjective and objective sleep impairment, and that mindfulness-based meditation can help attenuate this effect. Implications for current behavioral treatments for insomnia are discussed.

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Vivek, Venugopal. "THE EFFICACY OF MINDFULNESS-BASED MEDITATION IN ATTENUATING SLEEP DISTURBANCES AMONG HIGH TRAIT RUMINATORS". Kent State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=kent1373384909.

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Jiang, Wei. "Contrôle de la formation et du confinement variable dans le temps et entièrement distribué pour les systèmes multi-agents/ multi-robots". Thesis, Ecole centrale de Lille, 2018. http://www.theses.fr/2018ECLI0016/document.

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Cette thése traite du contrôle de la formation et du confinement variant dans le temps pour les systèmes multi-agents linéaires invariants avec hétérogénéité en tenant compte des délais d’entrée / sortie constants / variables dans le temps et des perturbations adaptées / incompatibles sous topologie de communication dirigée et fixe. De nouveaux formats de formes de formation variables dans le temps pour des systèmes homogènes et hétérogènes sont proposés. Les contrôleurs, conçus sur la base de techniques prédictives et adaptatives avec une technique d’observation, sont entièrement distribués et peuvent être appliqués à des systèmes à grande échelle. L’application sur les systèmes robotisés multi hétérogènes linéarisés est vérifiée
This thesis deals with the time-varying formation and containment control for linear time-invariant multi-agent systems with heterogeneity considering constant / time-varying input / output delays and matched / mismatched disturbances under directed and fixed communication topology. New formats of time-varying formation shapes for homogeneous and heterogeneous systems are proposed. The controllers, which are designed based on predictive and adaptive techniques with observer technique, are fully distributed and can be applied to large-scale systems. The application on linearized heterogeneous multi mobile robot systems is verified
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Libros sobre el tema "Disturbance attenuation"

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Knobloch, Hans Wilhelm. Disturbance Attenuation for Uncertain Control Systems. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-00957-5.

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Disturbance attenuation for uncertain control systems. Cham: Springer, 2014.

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Halanay, Aristide. Time-varying discrete linear systems: Input-output operators, Riccati equations, disturbance attenuation. Basel: Birkhäuser Verlag, 1994.

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Halanay, Aristide y Vlad Ionescu. Time-Varying Discrete Linear Systems: Input-Output Operators. Riccati Equations. Disturbance Attenuation. Birkhauser Verlag, 2012.

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Halanay, Aristide y Vlad Ionescu. Time-Varying Discrete Linear Systems: Input-Output Operators. Riccati Equations. Disturbance Attenuation. Birkhäuser, 2012.

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Nicholson, Grainne y George M. Hall. Neuroendocrine physiology in anaesthetic practice. Editado por Jonathan G. Hardman. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199642045.003.0008.

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This chapter describes the hormonal, metabolic, and inflammatory response to surgery—commonly known as the surgical stress response. The changes in protein, carbohydrate, and fat metabolism to provide fuel for oxidation are outlined as well as changes in salt and water metabolism. Psychological sequelae of fatigue and malaise are also common in patients undergoing surgery. Attenuating the metabolic and endocrine changes associated with surgery may reduce postoperative morbidity and expedite recovery; the choice of anaesthetic drugs and techniques (regional vs general anaesthesia) and the increasing use of laparoscopic surgery have all been used to try to achieve this objective. The most common metabolic disease which anaesthetists have to manage is diabetes mellitus (DM) and its pathophysiology and medical management, as well as that of the related metabolic syndrome are discussed. Adrenal tumours are rare but usually require surgical excision. Phaeochromocytomas present unique anaesthetic challenges, but pre-, intra-, and postoperatively in terms of fluid management and blood pressure control. Conn’s syndrome (primary hyperaldosteronism) can also result in hypertension and electrolyte disturbances. Cushing’s disease (glucocorticoid excess) presents with the clinical effects of steroid excess and many patients have concomitant DM. Finally, perioperative steroid supplementation for patients already taking steroids and undergoing surgery is discussed.
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Capítulos de libros sobre el tema "Disturbance attenuation"

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Halanay, Aristide y Vlad Ionescu. "Disturbance Attenuation". En Time-Varying Discrete Linear Systems, 145–85. Basel: Birkhäuser Basel, 1994. http://dx.doi.org/10.1007/978-3-0348-8499-0_5.

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Isidori, Alberto. "Disturbance Attenuation". En Nonlinear Control Systems II, 183–225. London: Springer London, 1999. http://dx.doi.org/10.1007/978-1-4471-0549-7_4.

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Jafari, Saeid y Petros Ioannou. "Robust Adaptive Disturbance Attenuation". En Lecture Notes in Control and Information Sciences, 135–88. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-74628-5_6.

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Knobloch, Hans Wilhelm. "Disturbance Attenuation in Control Systems". En Disturbance Attenuation for Uncertain Control Systems, 127–311. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-00957-5_5.

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Knobloch, Hans W., Dietrich Flockerzi y Alberto Isidori. "Disturbance attenuation via H∞-methods". En Topics in Control Theory, 37–68. Basel: Birkhäuser Basel, 1993. http://dx.doi.org/10.1007/978-3-0348-8566-9_3.

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Ortega, Romeo, Antonio Loría, Per Johan Nicklasson y Hebertt Sira-Ramírez. "Adaptive disturbance attenuation: Friction compensation". En Passivity-based Control of Euler-Lagrange Systems, 115–32. London: Springer London, 1998. http://dx.doi.org/10.1007/978-1-4471-3603-3_5.

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Knobloch, Hans Wilhelm. "About this Lecture Note". En Disturbance Attenuation for Uncertain Control Systems, 1–9. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-00957-5_1.

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Flockerzi, Dietrich. "Dissipation Inequalities and Nonlinear H ∞ -Theory". En Disturbance Attenuation for Uncertain Control Systems, 11–42. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-00957-5_2.

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Knobloch, Hans Wilhelm. "Dissipation Inequalities: An Alternative Approach". En Disturbance Attenuation for Uncertain Control Systems, 43–104. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-00957-5_3.

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Isidori, A. "A Unified Approach to Problems of Asymptotic Tracking and Disturbance Rejection". En Disturbance Attenuation for Uncertain Control Systems, 105–26. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-00957-5_4.

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Actas de conferencias sobre el tema "Disturbance attenuation"

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Wissing, Marc, Thimo Oehlschlagel y Jan Lunze. "Disturbance Attenuation in Synchronised Systems". En 2020 28th Mediterranean Conference on Control and Automation (MED). IEEE, 2020. http://dx.doi.org/10.1109/med48518.2020.9183015.

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Tharp, H. S. "Disturbance Attenuation with Output Sampling". En 1991 American Control Conference. IEEE, 1991. http://dx.doi.org/10.23919/acc.1991.4791357.

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Njiri, Jackson G., Yan Liu y Dirk Söffker. "Disturbance Attenuation Using Proportional-Integral-Observer for Wind Turbine Speed Regulation". En ASME 2014 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/dscc2014-6003.

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In this paper high-gain Proportional-Integral-Observer (PI-Observer) is used to estimate system states and wind disturbances. To guarantee the robustness and the desired performance, a disturbance rejection scheme is employed to compensate these disturbances. The proposed method realizes speed/power regulation during high wind regime. Control performance of the proposed scheme is evaluated against a baseline collective pitch controller (CPC). The results show that the proposed method can maintain fairly constant power/rotor speed without inducing extra load on the rotor.
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Kinney, C. E. y R. A. de Callafon. "Scheduling control for periodic disturbance attenuation". En 2006 American Control Conference. IEEE, 2006. http://dx.doi.org/10.1109/acc.2006.1657478.

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Bird, Jeffrey y Bruce Francis. "On the robust disturbance attenuation problem". En 1986 25th IEEE Conference on Decision and Control. IEEE, 1986. http://dx.doi.org/10.1109/cdc.1986.267273.

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Zorkina, Anastasia, Alexey Peregudin y Igor Furtat. "Tracking Control with Ellipsoidal Disturbance Attenuation". En 2022 8th International Conference on Control, Decision and Information Technologies (CoDIT). IEEE, 2022. http://dx.doi.org/10.1109/codit55151.2022.9803967.

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Krstić, Miroslav y Hua Deng. "Closed-Form Optimal Controllers for Nonlinear Uncertain Systems". En ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0302.

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Abstract We review our recent results on stabilization and optimal disturbance attenuation for nonlinear systems with uncertainties. The systems are affine in the control and the disturbance but otherwise general. We treat both deterministic and stochastic disturbances. In both cases the disturbance attenuation problem is posed as a differential game (in the stochastic case the player opposed to control is not the noise itself but its covariance). The results are based on control Lyapunov function techniques. The full account of the results is given in our new monograph (Stabilization of Nonlinear Uncertain Systems, Springer, 1998).
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Simon, Andra´s y George T. Flowers. "Disturbance Attenuation Using Non-Singleton Fuzzy Logic". En ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84433.

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Magnetic bearings are an exciting and innovative technology that has seen considerable advances in recent years. Such systems require active control, and most often, linear techniques are used very successfully. However, there are applications where such methods have limited effectiveness and other control strategies must be considered. Fuzzy logic control performs very well in nonlinear control situations where the plant parameters are either partially or mostly unidentified. Its effectiveness for nonlinear systems also offers advantages to magnetic bearing systems. Little research has been done on non-singleton fuzzy logic systems and their application to noise rejection on magnetic bearings or rotating machinery. Non-singleton fuzzy set inputs allow one to account for input measurement uncertainty. The fuzzy logic controller’s task in this work is two-fold; provide control for stable levitation of the shaft and perform noise filtering to reduce the effects of the disturbance. The current work consist of model development, controller design, simulation and experimental validation. The basic simulation model consist of a horizontal shaft supported by a radial magnetic bearing. The magnetic bearing is modeled as a nonlinear element. The controller designs are implemented and tested using a bench-top rotor rig equipped with a radial magnetic bearing. Some representative results are presented and discussed.
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Zhijian Ji y Long Wang. "Disturbance attenuation of uncertain switched linear systems". En 2004 43rd IEEE Conference on Decision and Control (CDC) (IEEE Cat. No.04CH37601). IEEE, 2004. http://dx.doi.org/10.1109/cdc.2004.1429315.

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El-Shenawy, Ahmed, Achim Wagner, Peter Pott, Ralf Gundling, MarKus Schwarz y Essam Badreddin. "Disturbance attenuation of a handheld parallel robot". En 2013 IEEE International Conference on Robotics and Automation (ICRA). IEEE, 2013. http://dx.doi.org/10.1109/icra.2013.6631238.

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Informes sobre el tema "Disturbance attenuation"

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Speyer, Jason L. A Disturbance Attenuation Approach to Missile Guidance and Control. Fort Belvoir, VA: Defense Technical Information Center, marzo de 1997. http://dx.doi.org/10.21236/ada329598.

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