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建立了多组多滞后区间系数定常非线性关联控制大系统的结构新概念,采用鲁棒镇定等价法,治出了具有扰动结构参数的、带有时滞控制向量函数的、多组多滞后区间常系数、非线性关联控制大系统的结构与关联鲁棒镇定,同时给出了扰动参数与滞后非线性项界限的估计公式。 相似文献
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建立了一类多组多滞后区间时变非线性控制大系统的结构概念,采用李雅普诺夫函数鲁棒镇定等价法,给出了无滞后和扰动结构参数线性时变控制大系统的关联镇定,它蕴含了具有扰动结构参数的多组多滞后区间时变非线性关联控制大系统的结构与关联鲁棒镇定,同时给出了扰动参数与滞后非线性项界限的估计公式。 相似文献
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建立了多组多滞后区间系数时变非线性控制系统的结构概念,采用刘永清建立的鲁棒镇定的等价法,给出了具有扰动结构参数的多组多滞后区间系数时变非线性关联控制系统的结构与关联鲁棒镇定,同时给出了扰动参数与滞后非线性项界限的估计公式 相似文献
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建立了多组多滞后区间系数时变非线性控制系统的结构概念,采用鲁棒镇定等价法,给出了具有扰动结构参数的多组多滞后区间系数时变非线性关联控制系统的结构与关联鲁棒镇定,同时给出了扰动参数与滞后非线性项界线的估计公式。 相似文献
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建立了多组多滞后区间系数的时变非线性控制系统的结构概念,采用刘永清建立的鲁棒镇定的等价法,给出了具有扰动结合参数的多组多滞后区间系数时在非性关控制系统的结构与关联鲁棒镇定,同时给出了扰动参数与滞后非线性项界了的估计公式。 相似文献
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多组时滞大型控制系统的镇定 总被引:2,自引:0,他引:2
给出了由无时滞线性定常闭孤立控制子系统的渐近稳定性推出多组时滞线性定常闭环大型控制系统的渐近稳定性的充分条件,并说明了所得结果可以推广到多组时滞线性时变闭环大型控制系统与多组时滞线中立型定常(或时变)闭环大型控制系统,所得结果改进了前人的结果,通过参数镇定域的比较知,可使参数镇定域扩大为原来的6倍。 相似文献
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本文由勒卡提矩阵方程与勒卡提矩阵微分方程的正定对称解构造了正定二次型函数,给出了在镇定理论中定常及时变线性控制系统与具有滞后的定常及时变线性控制系统的等价性。同时给出了滞后界限的估计公式。 相似文献
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研究具有线性时变扰动的多变量控制系统性能评价的方法.通过将时变扰动分为三类定常扰动, 进而构造一个加权的性能指标,权值矩阵与不同扰动类型和优先级相对应.在指定合理的输出方差后, 运用对角关联矩阵方法明确计算出广义多变量系统闭环输出方差的上下限值.经过ITAE (Integral of time-weighted absolute value of the error) 寻优得到最 小输出方差下的控制器参数,并给出可实现的最优控制器模型.仿真实例证明了该方法计算的简便性和有效性. 相似文献
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In this paper, the problem of delay-dependent decentralised control for a class of uncertain similar interconnected systems is investigated, where not only the state vectors but also the input vectors involve time delay. The new similar structure is presented via state feedback, based on which, by exploiting the structure of interconnected systems, the new integral inequalities, constrained Lyapunov equations and LMI method, the decentralised stabilization controllers are designed, which is dependent on time delays, to stabilise the interconnected systems uniformly asymptotically. The results show that the design is easy to calculate and the controllers have the similar structure, so it is easy to realise project. Finally, a numerical example is given to demonstrate the effectiveness of the results obtained in this paper. 相似文献
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In this paper, the problem of decentralised memory static output feedback control for a class of nonlinear time-delayed interconnected systems with similar structure is investigated, where both the linear and nonlinear state vectors involve time delay. The contributions of the paper include the following: (1) a new similar structure is presented via memory static output feedback; (2) by exploiting the structure of interconnected systems, the new integral inequalities, constrained Lyapunov equations and LMI method, the decentralised memory static output derivative feedback controllers with similar structure are designed, which is dependent of time delays, to stabilise the interconnected systems uniformly asymptotically; and (3) the stability domain is estimated. The conservatism of the results obtained is reduced by full using the system output information. Finally, the numerical examples are given to demonstrate the effectiveness of the results obtained in this paper. 相似文献
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考虑一类非线性关联大系统的可靠控制器设计问题,该系统具有常时滞、参数不确定性、非线性扰动和传感器故障.其中参数不确定性满足匹配条件,非线性扰动满足范数有界条件,传感器具有部分失效的模型.本文的目的是设计无记忆分散控制器来镇定该系统.通过解线性矩阵不等式获得此控制器,使得当传感器器发生故障时被控系统能够保持渐近稳定.最后通过仿真的例子,验证该状态反馈控制器的可行性. 相似文献
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研究了一类带有时变时滞的不确定非线性关联大系统的自适应模糊容错控制问题.用有界的参考信号代换模糊逼近器输入中的未知时滞信号,使得控制器的设计与应用不再依赖于时滞假设条件,使得控制器的设计和控制方法的应用更为方便.容错反推控制技术和自适应技术相结合来处理代换误差和逼近误差.所提出的方案能有效补偿所有4种类型的执行器故障,同时还可保证闭环系统的全局稳定性.仿真结果进一步验证了本文方法的有效性. 相似文献
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Adaptive Control Scheme for Large‐Scale Interconnected Systems Described by Hammerstein Models 下载免费PDF全文
This paper proposes an adaptive algorithm for the online control of discrete‐time large‐scale nonlinear systems, which reduces the noise effects acting on the system output (regulation problem) and allows the system output to keep track of a time‐varying trajectory (tracking problem). We consider a large‐scale nonlinear system that can be decomposed into single‐input single‐output (SISO) interconnected nonlinear subsystems with known structure variables (orders, delays) and unknown time‐varying parameters. Each interconnected subsystem is described by block‐oriented models, specifically a discrete‐time Hammerstein model. Parameter adaptation is performed using a recursive parametric estimation algorithm based on the adjustable model method and the least squares techniques. Simulation results of an interconnected petroleum process are provided to demonstrate the effectiveness of the developed control scheme. 相似文献