1. |
Some further evidence for a counter-example in singular optimal control problems |
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International Journal of Control,
Volume 46,
Issue 4,
1987,
Page 1123-1130
D. J. BELL,
Z. ZAINUDDIN,
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摘要:
This paper first completes an investigation started by Bell and Turpin (1981). It is shown that for a general second-order system with a drift term and for which parameter values are q = 1, m = 2, McDanell's conjecture is correct. Following this, a statement is given of all necessary conditions that must be satisfied at a junction in order for a counter-example to the conjecture to exist. These conditions prove to be consistent, indicating that it is worth continuing the search for such a counterexample
ISSN:0020-7179
DOI:10.1080/00207178708933954
出版商:Taylor & Francis Group
年代:1987
数据来源: Taylor
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2. |
Modelling and linear model-following control of singularly perturbed discrete systems |
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International Journal of Control,
Volume 46,
Issue 4,
1987,
Page 1131-1138
TZUU-HSENGS. LI,
YORK-YIH SUN,
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摘要:
A new method for order reduction of singularly perturbed discrete systems is derived. The discrete system is reduced to its dominant and parasitic parts. This method can exactly exhibit the responses of the original system. For control law design, the linear model-following control (LMFC) method is applied. The order of the model is chosen the same as that of the dominant part of the plant, i.e. we apply to the plant with and without parasitics the same LMFC law. The conditions for reduced-order LMFC systems are derived and some simulation results are illustrated
ISSN:0020-7179
DOI:10.1080/00207178708933955
出版商:Taylor & Francis Group
年代:1987
数据来源: Taylor
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3. |
Sensors and actuators in distributed systems |
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International Journal of Control,
Volume 46,
Issue 4,
1987,
Page 1139-1153
A. EL JAI,
A. J. PRITCHARD,
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摘要:
The concepts of strategic sensors and actuators are introduced for a class of distributed parameter systems. This emphasizes the spatial structure and location of the sensors and controls in order that observability and controllability can be achieved.
ISSN:0020-7179
DOI:10.1080/00207178708933956
出版商:Taylor & Francis Group
年代:1987
数据来源: Taylor
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4. |
Newton-like algorithm for integrated system optimization and parameter estimation technique |
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International Journal of Control,
Volume 46,
Issue 4,
1987,
Page 1155-1170
P. TATJEWSKI‡,
P. D. ROBERTS,
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摘要:
The problem of obtaining the correct optimal steady-state operation of an industrial process, despite the deficiencies in its available mathematical model, is addressed in the paper. The control method considered is the integrated system optimization and parameter estimation (ISOPE) technique, and a new algorithm, of Newton-like type, is presented in the paper for this technique. The algorithm is derived for the augmented version of the ISOPE technique and hence it is also applicable for non-convex problems. The algorithm does not require more measurement information than the previous simple relaxation-type algorithms. It is convergent in one iteration for the case of a linear process and quadratic performance function. A local convergence analysis is provided for the general non-linear case. Simulation results are also given, and comparison with the relaxation type algorithm is presented, indicating the superiority of the new approach for the examples considered
ISSN:0020-7179
DOI:10.1080/00207178708933957
出版商:Taylor & Francis Group
年代:1987
数据来源: Taylor
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5. |
Computation of finite and infinite zeros of linear multivariable systems: a state space approach |
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International Journal of Control,
Volume 46,
Issue 4,
1987,
Page 1171-1186
O. A. SEBAKHY,
M. I. EL SINGABY,
I. F. EL ARABAWY,
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摘要:
An iterative algorithm, developed by the authors to compute the finite zeros of a linear multivariable system (Sebakhy et al. 1983), is extended to compute the infinite zeros of the system as well. The method is simple, efficient and suitable for programming on a digital computer
ISSN:0020-7179
DOI:10.1080/00207178708933958
出版商:Taylor & Francis Group
年代:1987
数据来源: Taylor
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6. |
Dynamic block relative gain and its connection with the performance and stability of decentralized control structures |
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International Journal of Control,
Volume 46,
Issue 4,
1987,
Page 1187-1193
YAMAN ARKUN,
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摘要:
The notion of dynamic block relative gain (DBRG) is introduced and new results on stability and performance of decentralized control structures are presented
ISSN:0020-7179
DOI:10.1080/00207178708933959
出版商:Taylor & Francis Group
年代:1987
数据来源: Taylor
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7. |
Further condition for the delay-independent stabilization of linear systems |
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International Journal of Control,
Volume 46,
Issue 4,
1987,
Page 1195-1202
KIMIO AKAZAWA,
TAKASHI AMEMIYA,
HIDEKATSU TOKUMARU,
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摘要:
There are two different conditions for the delay-independent stabilization of linear systems by means of state variable feedback including no delays, one of which is also sufficient for decay rate assignability. In this paper a wider condition is presented for delay-independent stabilization. It is proved that this condition includes the conditions so far obtained
ISSN:0020-7179
DOI:10.1080/00207178708933960
出版商:Taylor & Francis Group
年代:1987
数据来源: Taylor
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8. |
Circle condition and stability margin of the optimal regulator for systems with delays |
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International Journal of Control,
Volume 46,
Issue 4,
1987,
Page 1203-1212
KENKO UCHIDA,
ETSUJIRO SHIMEMURA,
NAOTO ABE,
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摘要:
Robustness properties of the optimal regulator for systems with delays in the state are characterized: first, a Nyquist stability criterion is developed and the circle condition of the optimal regulator is derived. On the basis of these results, the stability margin of the optimal regulator is evaluated as by Lehtomaki el al. (1981), and it is shown finally that the stability margin is equal to that in the finite-dimensional case
ISSN:0020-7179
DOI:10.1080/00207178708933961
出版商:Taylor & Francis Group
年代:1987
数据来源: Taylor
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9. |
Observer design for stochastic-parameter systems |
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International Journal of Control,
Volume 46,
Issue 4,
1987,
Page 1213-1217
ENGIN YAZ,
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摘要:
Constant-gain linear observer design is utilized to reconstruct the state vector of stochastic systems with both multiplicative and additive noises. It is shown that if the system model is mean square stable, then it is very easy to design an effective estimation scheme
ISSN:0020-7179
DOI:10.1080/00207178708933962
出版商:Taylor & Francis Group
年代:1987
数据来源: Taylor
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10. |
Further results on stabilizing controllers for discrete non-linear stochastic systems |
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International Journal of Control,
Volume 46,
Issue 4,
1987,
Page 1219-1224
ENGIN YAZ,
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摘要:
More relationships that exist among stabilizability conditions of controllers designed for a class of discrete non-linear stochastic systems are described. The conditions are in terms of both mean square and almost sure asymptotic stability of the controlled systems and provide converse results to those presented earlier
ISSN:0020-7179
DOI:10.1080/00207178708933963
出版商:Taylor & Francis Group
年代:1987
数据来源: Taylor
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