Results 261 to 270 of about 162,627 (299)

Noise Reduction Disturbance Observer for Disturbance Attenuation and Noise Suppression

IEEE Transactions on Industrial Electronics, 2017
In most research works on the disturbance observer (DOB)-based controller, stability conditions are only sufficient and not effective for handling large uncertainties. To deal with large uncertainties, a necessary and sufficient condition for robust stability has been recently provided by utilizing a novel design technique for the Q -filter. Although
Nam Hoon Jo, Chanyoung Jeon, Hyungbo Shim   +2 more
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INTEGRATED DISTURBANCE OBSERVER

2023
The present invention relates to an integrated disturbance observer capable of efficiently removing an unintended disturbance in force/torque dimensions, which can affect a system in a contact or noncontact situation with an external object in a bot system.
강와계, 사무엘; id_orcid 0000-0002-7791-3356, 이현욱, Hyun-Wook   +1 more
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Integral action — A disturbance observer approach

2003 European Control Conference (ECC), 2003
Integral action is required in many controllers in order to solve real world problems. Modeling errors and disturbances are examples of issues that can be dealt with by using controllers with integral action. This paper explores the use of disturbance observers to introduce integral action into an output feedback controller. In particular, the proposed
Johan Åkesson, Per Hagander
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A survey of state and disturbance observers for practitioners

2006 American Control Conference, 2006
This paper gives a unified and historical review of observer design for the benefit of practitioners. It is unified in the sense that all observers are examined in terms of: 1) the assumed dynamic structure of the plant; 2) the required information, including the input signals and modeling information of the plant; and 3) the implementation equation of
Aaron Radke, Zhiqiang Gao
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An observer with controller to detect and reject disturbances

International Journal of Control, 2013
In this paper, a novel states observer is designed. This observer not only estimates the states, but also detects the disturbances by creating estimated signals. Then, both the observed states and detected disturbances are used in a control law to reject the disturbances, avoiding the requirement to know the states and disturbances.
José de Jesús Rubio, Fidel Meléndez-Vázquez, Maricela Figueroa   +2 more
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Fuzzy controllers with/without disturbance observer

2016 13th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI), 2016
A so-called lumped disturbance is considered in the T-S fuzzy model of the system to be controlled. Under the circumstances, this paper proposes two controllers, in which one is designed only on the basis of the control system stability, and the other is designed on the basis of both the control system stability and a proposed disturbance observer ...
Xiaodong Zhang 0023, Hugang Han, Dongyin Wu   +2 more
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FURTHER OBSERVATIONS ON HOMEOSTATIC DISTURBANCE IN ACRODYNIA

Pediatrics, 1957
On the basis of data obtained from four cases of acrodynia, it was found that deficits of total body chloride and water were present. Normal concentrations of electrolytes and acid-base balance were, for the most part, preserved while the volumes of the fluid compartments were reduced.
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Disturbance observer control

2017
The book reviews developments in the following fields: disturbance observer control; continuous-time disturbance observer; SISO disturbance observer; discrete-time disturbance observer; MIMO disturbance observer; and communication disturbance observer.
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Suppression of effects of nonlinearities by disturbance observers

Proceedings of the 2004 American Control Conference, 2004
In this paper, the application of disturbance observers to suppress chaotic behavior in a class of single-input single-output (SISO) nonlinear systems is studied. A nonlinear system in this class has the property that its output is equal to the summation of the output of a stable SISO linear time-invariant system and a bounded disturbance.
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Friction Compensation Via Disturbance Observer

IFAC Proceedings Volumes, 1991
Abstract For the translational movement of a robot arm, which is disturbed by a very strong frictional force, a method is developed to achieve an accurate position control. Therefore, the idealized translar tional degree of freedom, which is represented by a simple second order model, is used as a reference model to the read process.
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