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Inductor Current Sampled Feedback control of chaos in Current-Mode Boost Converter

Journal of Electronic Science and Technology of China 2008年第1期6卷 52-55页

作者： Bo-Cheng Bao Jian-Ping Xu Yan Liang Department of Electronic Engineering Nanjing University of Science and Technology Nanjing 210094 China College of Electrical Engineering Southwest JiaotongUniversity Chengdu 610031 China

A chaos control strategy for chaotic current-mode boost converter is presented by using inductor current sampled feedback control *** quantitative analysis of control mechanism is performed by establishing a discrete alterative map of the controlled *** stability criterion,feedback gain,and corresponding critical duty ratio are obtained from the eigenvalue of the *** simulation results verify the t heoretical analysis results of the control strategy.

关键词： control of chaos current-mode boost converter inductor current sampled feedback stabilitycriterion.

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controlof Orbitand controlof chaosina Class of Dynamic System

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Advances in Manufacturing 1999年第4期3卷 263-269页

作者： LI Gen guo (Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University) ZHU Zheng you (Shanghai Institute of Applied Mathematics and Mechanics College of Sciences, Shanghai University) Shanghai Institute of Applied Mathematics and Mechanics Shanghai University Shanghai China Shanghai Institute of Applied Mathematics and Mechanics College of Sciences Shanghai University China

The problem of control of orbit for the dynamic system x ¨+x(1-x)(x-a)=0 is discussed. Any unbounded orbit of the dynamic system can be controlled to become a bounded periodic orbit by adding a periodic step excitation to the system. By using a nonlinear feedback control law presented in this paper the chaos of the dynamic system with excitation and damping is stabilized. This method is more effectual than the linear feedback control.

关键词： dynamic system nonlinear feedback control control of orbit control of chaos

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controlLING HYPERchaos IN PLANAR SYSTEMS BY ADJUSTING PARAMETERS

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Applied Mathematics and Mechanics(English Edition) 2003年第4期24卷 396-401页

作者：杨凌刘曾荣茅坚民 Department of Mathematics Suzhou University Department of Mathematics Shanghai University Shanghai 200436 P.R.China Department of Mathematics Shanghai University Department of Mathematics Hong Kong University of Science and Technology

For the two_parameter family of planar mapping, a method to stabilize an unstable fixed point without stable manifold embedding in hyperchaos is introduced. It works by adjusting the two parameters in each iteration of the map. The explicit expressions for the parameter adjustments are derived, and strict proof of convergence for method is given.

关键词： control of chaos hyperchaotic orbits parameter adjustment

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Global stabilization of a Lorenz system

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Chinese Physics B 2003年第6期12卷 590-593页

作者：李世华田玉平 DepartmentofAutomaticcontrol SoutheastuniversityNanjing210096China

In this paper,using feedback linearizing technique,we show that a Lorenz system can be considered as a cascade ***,this system satisfies the assumptions of global stabilization of cascade *** continuous state feedback control laws are proposed to globally stabilize the Lorenz system at the equilibrium *** results are presented to verify our *** method can be further generalized to other chaotic systems such as Chen system,coupled dynamos system,etc.

关键词： control of chaos Lorenz system global stabilization

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Notch filter feedback controlled chaos in buck converter

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Chinese Physics B 2007年第11期16卷 3256-3261页

作者：卢伟国周雒维罗全明 Key Laboratory of High Voltage Engineering and Electrical New Technology of Ministry of Education College of Electrical EngineeringChongqing UniversityChongqing400044China

A method of controlling chaos in the voltage-mode buck converter is presented by using an improved notch filter feedback control in this paper. The proposed control part comprises a notch filter and a low-pass filter. The discrepancy between the outputs of the two filters is introduced into the control prototype of the power converter. In this way, the system period-1 solution is kept unchanged. The harmonic balance method is applied to analysing the variation law of the system bifurcation point, and then the stable range of the feedback gain is ascertained. The results of simulation and experiment are also given finally.

关键词： chaos control of chaos buck converter notch filter

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