optimal control of switched impulsive systems with time delay
Báo cáo hóa học: " Research Article About Robust Stability of Caputo Linear Fractional Dynamic Systems with Time Delays through Fixed Point Theory" pot
... interest of this paper is concerned with thepositivity and stability of solutions independent of the sizes of the delays and also beingindependent of eventual coincidence of some values of delays ... independent of the sizes of the delays and the stabilityproperties of linear time- invariant fractional dynamic differential systems subject to pointdelays may be characterized with sets of precise ... is concerned with the investigation of the solutions of time- invariantfractional differential dynamic systems 23, 24, involving point delays which leads toa formalism of a class of functional...
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Direct torque and indirect flux control of brushless DC motor with non sinusoidal back EMF without position sensor
... Indirect Flux Control of Brushless DC Motor with Non-sinusoidal Back-EMF without position sensor Abstract: In this paper, the position sensorless direct torque and indirect flux control ... (f) (g) (h) (i) (j) Fig. 3. Simulation results of direct torque and indirect Flux Control of Six-Switch Brushless DC Motor without position sensor when refeT− is changed from 0.5 ... shapes require very fast controllers in particular at high speed. Classical bandwidth of the controller (such as proportional–integral) does not allow tracking all of the reference current...
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Báo cáo " A combination of the identification algorithm and the modal superposition method for feedback active control of incomplete measured systems " doc
... VNU Journal of Science, Mathematics - Physics 23 (2007) 131-138 137locations of the sensors. The time delay is taken with 1/500 and 1/800 of total duration time T. Some of the controlled results ... Many control strategies have been proposed, such as LQR/LQG control [2,3], H2/H∞ control [4,5], sliding mode control [6], saturation control [7], reliability-based control [8], fuzzy control ... are uncontrolled responses Table 1: The peak displacement in the numerical simulation Distance locate the sensor L/4 L/2 L Time delay (% of total time) 0.2 0.125 0.2 0.125 0.2 0.125Controlled...
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Báo cáo " A combination of the identification algorithm and the modal superposition method for feedback active control of incomplete measured systems" doc
... The time delay is taken with 1/500 and 1/800 of total duration time T. Some of the controlled results are shown in table 1 and Fig 6 and 7. In Fig 6 and 7, thin and dotted lines are uncontrolled ... L Time delay (% of total time) 0.2 0.125 0.2 0.125 0.2 0.125Controlled 29.9 26.45 19.34 17.43 6.02 4.16 Top point displacement (cm) Uncontrolled 52.22 a) b) c) Fig. 6. The history of ... Many control strategies have been proposed, such as LQR/LQG control [2,3], H2/H∞ control [4,5], sliding mode control [6], saturation control [7], reliability-based control [8], fuzzy control...
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MODELING AND CONTROL OF NONHOLONOMIC MECHANICAL SYSTEMS doc
... dimension of the accessi-bility distribution ∆C of the kinematic model (7.24). However, when dealing with the control of systems with generalized Pfaffian constraints, the presence of a drift ... first body of the kinematic chain.7.8. CONTROL OF NONHOLONOMIC SYSTEMS 333 the flow φgt(x) of the vector field g is the mapping that associates to each point x thesolution at time t of the differential ... achieving stability with exponential rate of convergence for the unicycle ispresented in [64].7.8. CONTROL OF NONHOLONOMIC SYSTEMS 329 xyφθFigure 7.1: Generalized coordinates of a rolling diskDue...
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mestha, dianat - control of color imaging systems. analysis and design
... Overview of Digital Printing Systems 3 9.11 TC Control Loop 5159.11.1 Open-Loop TC Model 5159.11.2 Design of a TC Control Loop Using a PI Controller 5179.11.3 Design of a TC Control Loop with a Time ... Concept of States 1774.3 State-Space Representation of Continuous -Time Systems 1774.3.1 Definition of State 1774.3.2 State Equations of Continuous -Time Systems 1784.3.3 State-Space Equations of ... imagerFuserPaperpathYellowstationFIGURE 1.5 Physical layout of the DC8000 print engine (tandem architecture).8 Control of Color Imaging Systems: Analysis and Design with offset print ing. Understanding some of the key steps involved...
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Báo cáo hóa học: " Effects of attention on the control of locomotion in individuals with chronic low back pain" pdf
... of dual-tasking and not to the order of presen-tation of the conditions.The main effect of group on stride length was not signifi-cant but inspection of the data revealed that one of the control ... experi-ence of pain affects the degree of automaticity in the control of gait, that is, walkers with LBP coordinate theirmovements in a controlled (i.e. attention demanding)mode, due to poorer motor control ... This is in line with previous studies sug-gesting that individuals with LBP tighten their gait control by reducing the number of degrees of freedom to cope with and hence in dealing with perturbations...
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Báo cáo hóa học: " Stability of a nonlinear non-autonomous fractional order systems with different delays and non-local conditions" pot
... robust control of frac-tional differential systems with delays. They delt with the BIBO stability of bothretarded and neutral fractional delay systems. Zhang [16] established the existence of aunique ... solu-tion and the stability and asymptotic properties of the solution of fractional differentialdynamic systems involving delayed dynamics with point delays.El-Sayed and Gaafar Advances in Difference ... AccessStability of a nonlinear non-autonomousfractional order systems with different delays andnon-local conditionsAhmed El-Sayed1*and Fatma Gaafar2* Correspondence:amasayed5@yahoo.com1Faculty of...
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Báo cáo hóa học: "Integro-differential inequality and stability of BAM FCNNs with time delays in the leakage terms and distributed delays" doc
... inequality and stability of BAM FCNNs with time delays inthe leakage terms and distributed delays. Journal of Inequalities and Applications 2011 2011:43.Zhang and Li Journal of Inequalities and ... are subject to impulsive perturbations, which can affect dynamicalbehaviors of the systems just as time delays. Therefore, it is necessary to consider both impulsive effect and delay effect on ... effect on the stability of neural netwo rks. To the best of ourknowledge, few authors have considered impulsive BAM FCNNs with time delays in th eleakage terms and distributed delays.Motivated by...
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báo cáo hóa học:" Research Article The Permanence and Extinction of a Discrete Predator-Prey System with Time Delay and Feedback Controls" ppt
... survivalrates. Of practical interest in ecosystem is the question of whether an ecosystem can withstandthose unpredictable forces which persist for a finite period of time or not. In the language of control ... conclusion of Theorem 3.2 holds. This completes theproof of Theorem 3.2.In order to obtain the permanence of the component yn of system 1.3, we nextconsider the following single-specie system with ... ArticleThe Permanence and Extinction of a DiscretePredator-Prey System with Time Delay andFeedback ControlsQiuying Li, Hanwu Liu, and Fengqin ZhangDepartment of Mathematics, Yuncheng University,...
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Báo cáo hóa học: " Research Article Bit Error Rate Approximation of MIMO-OFDM Systems with Carrier Frequency Offset and Channel Estimation Errors" ppt
... as a function of SINR in MIMO-OFDM is derivedin this section. We consider M-ary square QAM with Graybit mapping. In the work of Rugini and Banelli [11], the BER of SISO-OFDM with frequency ... Rate Approximation of MIMO-OFDM Systems with Carrier Frequency Offset and Channel Estimation ErrorsZhongshan Zhang,1Lu Zhang,2Mingli You,2and Ming Lei11Department of Wireless Communications, ... performance of MIMO systems, without considering the effect of both thefrequency offset and channel estimation errors, is studied in[18, 19].This paper provides a generalized BER analysis of MIMO-OFDM,...
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Báo cáo sinh học: " Research Article Robust Stabilization of Fractional-Order Systems with Interval Uncertainties via Fractional-Order Controllers" potx
... closed-loop control systems, there are foursituations. They are IO integer order plant with IO controller, IO plant with FO fractionalorder controller, FO plant with IO controller, and FO plant with ... importance of consideration and analysis of dynamical systems with fractional-order models. The PIλDμcontroller 9, the fractional lead-lag compensator 10,and the CRONE controllers are some of ... with FO controller. In thispaper, we focus on using FO controllers for unstable FO systems and we propose a simplefractional-order controller to control of fractional-order interval systems. ...
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báo cáo hóa học:" Research Article Existence of Periodic Solutions of Linear Hamiltonian Systems with Sublinear Perturbation" ppt
... developments of the second-order systems 1.1,see9.In this paper, we use this kind of condition to consider the existence of periodicsolutions of first-order linear Hamiltonian system with a nonlinear ... pagesdoi:10.1155/2010/945421Research ArticleExistence of Periodic Solutions of LinearHamiltonian Systems with Sublinear PerturbationZhiqing HanSchool of Mathematical Sciences, Dalian University of Technology, Dalian 116023, ... N-dimmensional systems of Duffing’s type II,” Journal of Qingdao University, vol. 7, pp. 19–26, 1994.8 Z Q. Han, “Computations of cohomology groups and nontrivial periodic solutions of Hamiltonian systems, ”...
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Báo cáo hoa học: " Research Article Permanence of a Discrete n-Species Schoener Competition System with Time Delays and Feedback Controls" pptx
... in ecology is the question of whether ornot an ecosystem can withstand those unpredictable disturbances which persist for a finiteperiod of time. In the language of control variables, we call ... therein.Chen 11 considered the permanence of the following nonautonomous discrete N-species cooperation system with time delays and feedback controls of the formxik 1 xikexprik1 ... pagesdoi:10.1155/2009/515706Research ArticlePermanence of a Discrete n-SpeciesSchoener Competition System with Time Delays and Feedback ControlsXuepeng Li and Wensheng YangSchool of Mathematics and Computer Science,...
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Báo cáo hóa học: " Research Article Analysis of Coded FHSS Systems with Multiple Access Interference over Generalized Fading Channels" ppt
... (6), wdis the number of codewordswithoutputweightd obtained from the weightenumerator of the code [12].In FHSS systems, the PEP in (6) is a function of the distribution of the d nonzero bits ... 10−4over Rician fading with κ = 10 dB versus thenumber of users K with an OPE receiver for SIR= 5dBandm =8, 16,32, 64,128.κ = 10, the cases of m = 16 and m = 32 compete for the optimal hop length, ... itspdf which is a function of the number of interfering users.The conditional pdf of the SINR, given that the number of interfering users is k for integer values of the Nakagamiparameter μ...
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