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Multi-objective robust state-feedback controller synthesis problems for linear discrete-time uncertain systems are addressed. Based on parameter-dependent Lyapunov functions, the Gl2 and GH2 norm expressed in terms of LMI （Linear Matrix Inequality） characterizations are further generalized to cope with the robust analysis for convex polytopic uncertain system. Robust state-feedback controller synthesis conditions are also derived for this class of uncertain systems. Using the above results, multi-objective state-feedback controller synthesis procedures which involve the LMI optimization technique are developed and less conservative than the existing one. An illustrative example verified the validity of the approach. 相似文献
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Permanent Magnet Synchronous Motor model can exhibit a variety of chaotic phenomena under some choices of system parameters and external input. Based on the property of passive system, the essential conditions were studied, by which Permanent Magnet Synchronous Motor chaotic system could be equivalent to passive system. Using Lyapunov stability theory, the convergence condition deciding the system's characters was discussed. In the convergence condition area, the equivalent passive system could be globally asymptotically stabilized by smooth state feedback. 相似文献
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Sliding mode control for synchronization of chaotic systems with structure or parameters mismatching
INTRODUCTION Synchronization of chaotic systems and its ap-plication to secure communication has recently re-ceived much attention. Several chaos synchronization schemes have been successfully established (Liao and Huang, 1999; Jiang, 2002; Zhao et al., 2004). How-ever, to our best knowledge, most of the chaos syn-chronization strategies have been studied in similar oscillators. In fact, from the perspective of hardware implementation, the resistance and capacitance of the resistors and… 相似文献
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INTRODUCTIONChaoticmotionisacomplexnonlinearmo tion ,whoseorbitstrajectoryinthephaseplaneisverycomplexbutnotstochastic.Chaosplaysanimportantroleindynamicalsystemsandisap pliedinmanyfieldssuchasphysics ,chemistry,economics,andsoon (Heetal.,2 0 0 2 ;Tongeta… 相似文献
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The new chaos control method presented in this paper is useful for taking advantage of chaos. Based on sliding mode control
theory, this paper provides a switching manifold controlling strategy of chaotic system, and also gives a kind of adaptive
parameters estimated method to estimate the unknown systems' parameters by which chaotic dynamical system can be synchronized.
Taking the Lorenz system as example, and with the help of this controlling strategy, we can synchronize chaotic systems with
unknown parameters and different initial conditions.
Project supported by Doctoral Subject Research Fund of Ministry of Education of China (1999033512) and Science and Technology
Plan Fund of Zhejiang Province (991110412) 相似文献
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大学生科研训练教育实践 总被引：14，自引：1，他引：14
大学生科研训练 (Student Research Train Program)简称 SRTP,其出发点是弥补本科教学实践动手的不足 ,给那些学有余力的学生尽早进入专业科研领域、接触学科前沿提供机会。近年来 ,工厂实践环境影响了把书本知识化作工程实用技术的能力的培养。通过五年的实践探索 ,我们体会到 ,在本科学生中开展 SRTP训练的重要性和可行性 ,恰当的组织和指导既能促进学生知识潜能的开发 ,也有利于其思想素质的提高。一、明确培养思想 ,规范培养程序SRTP教育旨在尽早开发学生的科研潜能、拓宽其知识领域 ,延伸其专业技能 ,提高其思想综合素养 ,在培… 相似文献
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