نتایج جستجو برای: chattering elimination

تعداد نتایج: 57222  

2013
Odailson Cavalcante de Oliveira Aldayr Dantas de Araújo Allan de Medeiros Martins

In this paper, a RBF network with Gaussians is adapted through a combination of switching and integral laws. The idea is to take the best features of each method. The hyperbolic tangent is used instead of signal function what reduces the chattering phenomenon. A hyperbolic secant is used to intercalate the methodologies, yielding a dual mode that results on zero error in steady state and a smoo...

Journal: :CoRR 2017
Ulises Pérez-Ventura Leonid M. Fridman

Professor Utkin in his discussion paper proposed an example showing that the amplitude of chattering caused by the presence of parasitic dynamics in systems governed by FirstOrder Sliding-Mode Control (FOSMC) is lower than the obtained using Super-Twisting Algorithm (STA). This example served to motivate this research reconsidering the problem of comparison of chattering magnitude in systems go...

2000
Takashi HIKIHARA Masaki KONAKA Yoshisuke UEDA

Chaotic chattering behaviors of DC-DC converters are caused by the nonlinearity of the switching operation which is an essential characteristics of the power electronics circuits. In this paper the bifurcation and the appearance of the chaotic chattering in the discontinuous current conduction mode of a DC-DC buck converter are discussed experimentally. Moreover, a method for controlling chaoti...

2011
Junwei Lei Jianhong Shi Guorong Zhao Guoqiang Liang

Considering pitch channel simplified model of missile control system, a VSCL(variable structure control law) is designed by using overload and angle velocity signals. Especially, an analysis is proposed for the situation of equal control with uncertainties. An integral action is introduced to compensate the uncertainties and a soft function is adopted to solve the chattering problem of VSC. Fin...

Journal: :Automatica 2014
Yong Feng Fengling Han Xinghuo Yu

In conventional sliding-mode control systems, the sliding-mode motion is of reduced order. Two main problems hindering the application of the sliding-mode control are the singularity in terminal slidingmode control systems and the chattering in both the conventional linear sliding-mode and the terminal sliding-mode control systems. This paper proposes a chattering-free full-order terminal-slidi...

Journal: :Miskolc Mathematical Notes 2017

Journal: :Appl. Soft Comput. 2013
Basil M. Al-Hadithi Antonio Javier Barragán-Piña José Manuel Andújar Márquez Agustín Jiménez

In this paper, a fuzzy based Variable Structure Control (VSC) with guaranteed stability is presented. The main objective is to obtain an improved performance of highly non-linear unstable systems. The main contribution of this work is that, firstly, new functions for chattering reduction and error convergence without sacrificing invariant properties are proposed, which is considered the main dr...

Journal: :CoRR 2015
Ehsan Samiei Eric A. Butcher

The chattering response at the MRP shadow set switching point for the controlled attitude dynamics of a rigid tumbling spacecraft using delayed state feedback control with MRPs is investigated, where the time delay is assumed to be in the measurement of the state. In addition, a strategy to reduce or completely avoid the chattering phenomena using a hysteretic boundary layer switching rule is e...

2014
Jiandong Wang Tongwen Chen

Chattering alarms repeatedly make transitions between alarm and non-alarm states without response from operators, and severely deteriorate the performance of industrial alarm systems. Two rules are formulated based on the metrics of alarm durations and intervals to detect chattering alarms caused by random noise and oscillation. An online method is proposed to reduce the number of the chatterin...

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