discrete time control systems matlab

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Ngày tải lên: 22/06/2014, 11:20

... and D gains. 6.3 Sampling Time with PID controllers We can state intuitively that the sampling time has to be much smaller than the open loop settling time for discrete control to be effective. ... response Consider now the closed loop unit-step input response of this system under a discrete time PID controller. The discrete time PID controller is given by u p (k)=K p e(k) u i (k)=u i (k − 1) + K i e(k) u d (k)=K d [e(k) ... newtons/meter/sec      ˙x 1 ˙x 2 ˙x 3 ˙x 4      =      0100 − k m 1 − c m 1 k m 1 c m 1 0001 k m 2 c m 2 − k m 2 − c m 2           x 1 x 2 x 3 x 4      +      0 1 m 1 0 0      u 4 K p K i K d controller 1 100 controller 2 10 0 0 controller 3 20 0 0 controller 4 20 1 0 controller 5 20 1 20 Plot all the unit-step output (y(t)...

Ngày tải lên: 12/12/2013, 07:15

... in many real-life applications such as medical diagnosis [Slowinski, 1992], control algorithm acquisition and process control [Mrozek, 1992], and structural engineering [Arciszewski and Ziarko, ... be formed. The lower and upper approximations of these concepts are then calculated. At the same time, the certain and possible training data sets are identified. Upon completion, the GA-based search ... the opinions of two engineers can be different, or even contradictory. Some earlier inductive learning systems such as the once prevailing decision tree learning system, the ID3, are unable to deal with...

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Ngày tải lên: 01/01/2014, 18:43

... gener‐ alized H2 control for discrete- time fuzzy systems with infinite-distributed delays” examined the generalized H2 control problem for a class of discrete time T-S fuzzy systems with infin‐ ite-distributed ... that Robust Control Design of Uncertain Discrete- Time Descriptor Systems with Delays http://dx.doi.org/10.5772/ 51538 35 Robust Control Design of Uncertain Discrete- Time Descriptor Systems with ... discrete- time state feedback mixed QGC/H ∞ control problem reduces to the discrete- time state feedback mixed LQR/H ∞ control problem. Xu (2011) presented respec‐ Advances in Discrete Time Systems4 4....

Ngày tải lên: 14/02/2014, 09:20

... discuss time delays further in Chapter 3. 1.4.4 Continuous -Time and Discrete- Time Systems A continuous -time system has outputs with values defined at all points in time. The outputs of a discrete- time ... equally spaced points in time. I/O Between Discrete- Time Systems and Continuous -Time Systems A class of I/O devices interfaces discrete- time embedded controllers with continuous plants by performing ... control systems in complex applications. 1.3.1 Comparison of Open-Loop Control and Feedback Control In many control system designs, it is possible to use either open-loop control or feedback control. ...

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Ngày tải lên: 08/04/2014, 12:26

... Filtering for Discrete Time Uncertain Systems 93 Rodrigo Souto, João Ishihara and Geovany Borges Discrete- Time Fixed Control 109 Stochastic Optimal Tracking with Preview for Linear Discrete Time Markovian ... x n q (j)) (10) 8 Discrete Time Systems X Preface We think that the contribution in the book, which does not have the intention to be all-embracing, enlarges the fi eld of the Discrete- Time Systems with ... Gain Analysis of Switched Linear Discrete- Time Descriptor Systems 337 Guisheng Zhai Robust Stabilization for a Class of Uncertain Discrete- time Switched Linear Systems 351 Songlin Chen, Yu Yao...

Ngày tải lên: 20/06/2014, 01:20

... Observer design for systems with multivariable monotone nonlinearities, Systems and Control Letters 50: 319–330. 37 Observers Design for a Class of Lipschitz Discrete- Time Systems with Time- Delay From ... ···M q (K q )  (49) M i (K i )=  (H i −K i C) T (H i −K i C) T    s i times  (50) 30 Discrete Time Systems Discrete Time Systems 44 (1) (1) (2) (2) FLP t+Δ t+Δ t+Δ t+Δ t+Δ -1 (1) (22) ... (23). 25 Observers Design for a Class of Lipschitz Discrete- Time Systems with Time- Delay Distributed Fusion Prediction for Mixed Continuous -Discrete Linear Systems 47 Fig. 2. Velocity MSE comparison...

Ngày tải lên: 20/06/2014, 01:20

... matrices S t (j)=  P t−j,t/t C t T −δ 0,j H t R t  C t −1 ( j = 0, 1, ···, L − 1 ) , (82) 65 New Smoothers for Discrete- time Linear Stochastic Systems with Unknown Disturbances Discrete Time Systems 52 Chang, K. C.; Tian, Z. & Saha, R. K. ... filter reaches its steady state. In this case, the EC P is given by (13). Now, 74 Discrete Time Systems Discrete Time Systems 50 This completes the proof of Theorem 2. Proof of Theorem 3 a., ... vector, 54 Discrete Time Systems Darouach, M.; Zasadzinski, M. & Keller, J. Y. (1992). State estimation for discrete systems with unknown inputs using state estimation of singular systems, ...

Ngày tải lên: 20/06/2014, 01:20

... as P k+1|k =  P 11,k+1|k P 12,k+1|k P T 12,k +1|k P 22,k+1|k  , (50) 101 Kalman Filtering for Discrete Time Uncertain Systems Kalman Filtering for Discrete Time Uncertain Systems 15 above its error variance prediction, i.e., the ... concentration of a given medicine in his patient. Kalman Filtering for Discrete Time Uncertain Systems 6 12 Discrete Time Systems Using (74), we can simplify the expressions for Φ ∗ k , K ∗ k and ... E  e (j) i,k  2 , (81) E  e (j) i,k  ≈ 1 N N ∑ j=1 e (j) i,k , (82) 104 Discrete Time Systems Kalman Filtering for Discrete Time Uncertain Systems 13 Step 0 (Initial conditions):  x 0|−1 = x 0 and P 0|−1 =...

Ngày tải lên: 20/06/2014, 01:20

... Tracking with Preview for Linear Discrete Time Markovian Jump Systems 129 O. L. V. Costa.; M. D. Fragoso. & R. P. Marques. (2005). Discrete- Time Markov Jump Linear Systems, Springer, 1-85233-761-3, ... output regulation for discrete- time switched and Markovian jump linear systems, SIAM J. Control Optim., 47, 1, 40-72 M. Mariton. (1990). Jump Linear Systems in Automatic Control, Marcel Dekker, ... the design of the model following control system for a nonlinear descriptor system in discrete time, if the following conditions are held: Discrete Time Systems 122 Then we introduce the...

Ngày tải lên: 20/06/2014, 01:20

... 1. 155 Output Feedback Control of Discrete- time LTI Systems: Scaling LMI Approaches Discrete Time Systems 140 Fig. 1. Responses of the system for nonlinear descriptor system in discrete time 7. References ... large-scale systems, IEEE Trans. on Automatic Control 49(11): 2040–2044. 158 Discrete Time Systems Discrete Time Mixed LQR/H ∞ Control Problems 167 In this case, the state feedback mixed LQR/ H ∞ controller ... Feedback Control of Discrete- time LTI Systems: Scaling LMI Approaches Discrete Time Mixed LQR/H ∞ Control Problems 163 If A is invertible, the stabilizing solution to the discerete time Riccati...

Ngày tải lên: 20/06/2014, 01:20

... to delay-dependent H ∞ control of discrete- time systems with time- varying delay, International Journal of Robust and Nonlinear Control, Vol.18, 630-647. 194 Discrete Time Systems a Lyapunov function ... design of discrete- time systems with time- varying delays have appeared in the literature(for example, (9)). The results in (3), (12), (14), (18) considered discrete- time systems with time- invariant ... 00  , Ξ T =  T −T(A + BK) −T(A d + B d K) 00  . 181 Robust Control Design of Uncertain Discrete- Time Systems with Delays Discrete Time Mixed LQR/H ∞ Control Problems 173 Note that 121 11 1 ˆˆ...

Ngày tải lên: 20/06/2014, 01:20

... nonlinear mimo time- delay systems, Automatica 43(1): 31–43. 226 Discrete Time Systems Xu, J X. & Huang, D. (2009). Discrete- time adaptive control for a class of nonlinear systems with periodic ... −1)] T (74) 220 Discrete Time Systems Discrete Time Systems 204 H. Wang, J. Lam, S. Xu, et al. Robust H ∞ reliable control for a class of uncertain neutral delay systems, International Journal of Systems ... discrete- time systems with unknown control directions, Systems & Control Letters 57(11): 888–895. Goodwin, G. C., Ramadge, P. J. & Caines, P. E. (1980). Discrete- time multivariable adaptive control, ...

Ngày tải lên: 20/06/2014, 01:20

... continuous time dynamics of the system into a discrete- time model. The ODEs in (1)-(2) can be described in a compact form by ˙v = M −1 p[η,v]+ M −1 τ (10) ˙η = q[η,v], (11) 258 Discrete Time Systems 5.6 ... consensus problems for discrete- time multi-agent systems with switching topology and time- varying delays have been presented by using matrix theories. In Moreau (2005), a discrete- time network model of ... Stability of leaderless discrete- time multi-agent systems, Mathematics of Control, Signals, and Systems 18(4): 293–322. Aström, K. & Wittenmark, B. (1989). Adaptive Control, Addison-Wesley...

Ngày tải lên: 20/06/2014, 01:20

Ngày tải lên: 20/06/2014, 01:20