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Composite disturbance attenuation based saturated control for maintenance of low Earth orbit (LEO) formations

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Journal of Zhejiang University-Science C(Computers and Electronics) 2012年第5期13卷 328-338页

作者： Jian-cheng FAN Ke SUN National Key Laboratory of Inertial Technology Beihang University Beijing 100191 China Novel Inertial Instrument & Navigation System Technology Key Laboratory of Fundamental Science for National Defense Beihang University Beijing 100191 China

Maintenance of high performance formation control is important for low Earth orbit (LEO) formation missions of small *** this paper,a model of nonlinear relative motion dynamics is built,and then nonlinear and important perturbations affecting the formation configuration,such as J 2 and atmospheric drag,are analyzed as *** navigation satellite system based relative positioning with nonlinear filtering is adopted to provide state information associated with the *** combining disturbance observer based control with H ∞ state feedback,a composite disturbance attenuation controller is proposed for maintenance of continuous and accurate *** consideration of precise control relying on micro thrusters,a composite disturbance attenuation based saturated controller is designed and its stability is ***,through numerical simulations,we demonstrate that control accuracy is improved after effectively avoiding perturbations and that stabilization can be satisfied using this method.

关键词： Formation maintenance Perturbation disturbance attenuation H ∞ state feedback Saturated control

disturbance attenuation FOR UNCERTAIN NONLINEAR CASCADED SYSTEMS

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Journal of Systems Science & Complexity 2004年第3期17卷 318-324页

作者： BIWeiping MUXiaowu SUNYuqiang DepartmentofMathematics HenanNormalUniversityXinxiang453007China DepartmentofMathematics ZhengzhouUniversityZhengzhou450052China DepartmentofComputerScience HenanNormalUniversityXinxiang453007China

In present paper, the disturbance attenuation problem of uncertain nonlinear cascaded systems is studied. Based on the adding one power integrator technique and recursive design, a feedback controller that solves the ... 详细信息

关键词： uncertain nonlinear systems disturbance attenuation

Robust stabilization and disturbance attenuation for a class of underactuated mechanical systems

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Journal of Central South University 2012年第9期19卷 2488-2495页

作者：赖旭芝潘昌忠吴敏佘锦华 Simon X.YANG School of Information Science and Engineering Central South University Hunan Engineering Laboratory for Advanced Control and Intelligent Automation(Central South University) School of Engineering University of Guelph School of Computer Science Tokyo University of Technology

The robust control problem for a class of underactuated mechanical systems called acrobots is addressed. The goal is to drive the acrobots away from the straight-down position and balance them at the straight-up unstable equilibrium position in the presence of parametric uncertainties and external disturbance. First, in the swing-up area, it is shown that the time derivative of energy is independent of the parameter uncertainties, but exogenous disturbance may destroy the characteristic of increase in mechanical energy. So, a swing-up controller with compensator is designed to suppress the influence of the disturbance. Then, in the attractive area, the control problem is formulated into a H~ control framework by introducing a proper error signal, and a sufficient condition of the existence of Hoo state feedback control law based on linear matrix inequality （LMI） is proposed to guarantee the quadratic stability of the control system. Finally, the simulation results show that the proposed control approach can simultaneously handle a maximum ±10% parameter perturbation and a big disturbance simultaneously.

关键词： underactuated mechanical systems robust stabilization disturbance attenuation H∞ linear matrix inequality (LMI)

disturbance attenuation Analysis for Markovian Jump Genetic Regulatory Networks with Mode Dependent Delays

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Disturbance Attenuation Analysis for Markovian Jump Genetic ...

2011 Chinese Control and Decision Conference（CCDC）

作者： Mohammad Mohamadian Amir Hossein Abolmasoumi Hamid Reza Momeni Automation and Instrumentation lab in Electrical Engineering Department of Tarbiat Modares University

Since only small numbers of molecules are involved in gene regulation,genetic regulatory networks are extremely sensitive to stochastic *** networks also suffer from delay due to slowness of biochemical reactions and molecular *** this paper,we investigate stochastic stability and disturbance attenuation of stochastic Markovian genetic regulatory network with mode dependent *** using Lyapunov-Krasovskii functional,delay dependent conditions of stochastic stability and disturbance attenuation of genetic network is *** conditions are in the form of linear matrix inequality which can be verified easily by MATLAB.

关键词： Gene regulatory networks Markovian jump Stochastic Stability disturbance attenuation Linear Matrix Inequality

disturbance attenuation of the Nonlinear Benchmark System by Approximate Discrete-time Nonlinear H∞ Control

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Disturbance Attenuation of the Nonlinear Benchmark System by...

第二十四届中国控制会议

作者： Peng Jia, Jie Huang Department of Automation and Computer-Aided Engineering The Chinese University of Hong Kong Shatin, N.T., Hong Kong

This paper considers the disturbance attenuation of the discrete-time model of the RTAC (rotational/translational actuator) system, also known as the nonlinear benchmark system in literatures. A third-order approximat... 详细信息

关键词： Nonlinear discrete H∞ Control Benchmark problem Approximate design disturbance attenuation Simulation.

disturbance attenuation Property for a Class of Uncertain Discrete-time Linear Switching Systems

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Disturbance Attenuation Property for a Class of Uncertain Di...

第二十九届中国控制会议

作者： FAN Guowei1,LIU Zhiyuan1,CHEN Hong2 1.Department of Control Science and Engineering,Harbin Institute of Technology,Harbin 150001,P.R.China2.Department of Control Science and Engineering,Jilin University,Changchun 130025,P.R.China

In this paper,a subclass of switching systems is considered,which is the discrete-time linear switching systems with only in-loop *** the presence of parameter variations and additive l∞ bounded disturbances,the control problem solved consists of determining the non-conservative bounds on the l∞norm of the controlled output,independently of the external uncontrollable event and *** basic idea employed in this paper is to translate the required level of performance into the constraint on the controlled switching systems,then this constraint is considered as the safety problem for this class of switching *** with the bisection method,the optimal level of performance that solves the disturbance attenuation property problem can be *** last,some simulation results are included to show the applicability of the technique.

关键词： Switching Systems Uncertain Systems disturbance attenuation Reachability Safety Problem

disturbance attenuation for nonlinear systems with input matching uncertainty

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Disturbance attenuation for nonlinear systems with input mat...

第37届中国控制会议

作者： Tiantian Guo Xuejun Xie Institute of Automation Qufu Normal University

This paper investigates the problem of disturbance attenuation for a class of nonlinear systems with input matching uncertainty,whose nonlinearities are bounded by unmeasured states multiplying unknown input and output polynomial *** the technique of dynamic gain and extended state observer,an adaptive output feedback controller is designed to guarantee that the states of the closed-loop system are globally bounded,and the disturbance attenuation is achieved in the L-gain sense.

关键词： Nonlinear systems disturbance attenuation input matching uncertainty input and output polynomial functions

Nonlinear disturbance attenuation control for four-leg active power filter based on voltage source inverter

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控制理论与应用（英文版） 2006年第3期4卷 261-266页

作者： Juming CHEN Feng LIU Shengwei MEI State Key Laboratory of Power System Department of Electrical Engineering Tsinghua University Beijing 100084 China The Institute of System Science Chinese Academy of Science Beijing 100080 China

Active power filter （APF） based on voltage source inverter （VSI） is one of the important measures for handling the power quality problem. Mathematically, the APF model in a power grid is a typical nonlinear one. The idea of passivity is a powerful tool to study the stabilization of such a nonlinear system. In this paper, a state-space model of the four-leg APF is derived, based on which a new H-infinity controller for current tracking is proposed from the passivity point of view. It can achieve not only asymptotic tracking, but also disturbance attenuation in the sense of L2-gain. Subsequently, a sufficient condition to guarantee the boundedness and desired mean of the DC voltage is also given. This straightforward condition is consistent with the power-balancing law of electrical circuits. Simulations performed on PSCAD platform verify the validity of the new approach.

关键词： APF Nonlinear system disturbance attenuation Current tracking control

Robust stabilization and disturbance attenuation of a Class of MIMO Nonlinear Systems with Multi-operation Points

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Robust stabilization and Disturbance Attenuation of a Class ...

第二十六届中国控制会议

作者： Zhong Yi sheng Department of Automation,Tsinghua University,Beijing 100084.P.R.China

In this paper a class of MIMO nonlinear systems with multi-operation points are considered.A nominal plant is in-troduced and the controlled plant is described as the nominal one with an equivalent disturbance which denotes the effect of property uncertainties of the plant at different operating point and disturbance.A nominal controller is first designed to sta-bilize the closed-loop system for the nominal plant,then a robust compensator is added to reduce the influence of the equiva-lent disturbance to achieve robust stabilization and disturbance attenuation.

关键词： Robust control stabilization disturbance attenuation multi-operating-points MIMO system