2016 (vol. 26) - Number 4
Practical and asymptotic stability of fractional discrete-time scalar systems described by a new model
D. Krokavec, A. Filasova, P. Liscinsky:
On fault tolerant control structures incorporating fault estimation
Hyperchaos, adaptive control and synchronization of a novel 4-D hyperchaotic system with two quadratic nonlinearities
H. Górecki, M. Zaczyk:
Analytic solutions of transcendental equations with application to automatics
Predictor-based stabilization for chained form systems with input time delay
S. Daniar, R. Aazami, M. Shiroei:
Multivariable predictive control considering time delay for load-frequency control in multi-area power systems
Analysis and comparison of the stability of discrete-time and continuous-time linear systems
M. Rachik, M. Lhous:
An observer-based control of linear systems with uncertain parameters
Identification of stable elementary bilinear time-series model
New observer-based control design for mismatched uncertain systems with time-delay
Using control theory to make cancer chemotherapy beneficial from phase dependence and resistant to drug resistance
(Rice University, USA)
(Silesian University of Technology, Poland)
keywords: optimal control, biomathematical models, cancer chemotherapy, bilinear systems, cell cycle dynamics.
- norm computation for stable linear continuous-time periodic systems
(University of Rostock, Germany)
|M. Obraszov and E. Rosenwasser|
(St. Petersburg State University of Ocean Technology, Russia)
keywords: time-varying systems, periodic motion, Laplace transforms, Green functions, transfer functions, norms.
A controllability problem for a class of uncertain - parameters discrete-time linear dynamic systems
(University of Mining and Metallurgy, Poland)
keywords: linear discrete-time systems with uncertain parameters, controllability.
A note on zeros, output-nulling subspaces and zero-dynamics in MIMO LTI systems
(Military University of Technology, Poland)
A simple sufficient and necessary condition of nondegeneracy is presented. The condition decomposes the class of all systems S(A,B,C) such that B0 and C0 into two disjoint subclasses: of nondegenerate and degenerate systems. In nondegenerate systems the Smith zeros and the invariant zeros are exactly the same objects which are determined as the roots of the so-called zero polynomial. The degree of this polynomial equals the dimension of the maximal (A,B)-invariant subspace contained in ker C, while the zero dynamics are independent upon control vector. In degenerate systems the zero polynomial determines merely the Smith zeros, while the set of the invariant zeros equals the whole complex plane. The dimension of the maximal (A,B)-invariant subspace contained in ker C is strictly larger than the degree of the zero polynomial, whereas the zero dynamics essentially depend upon control vector.
keywords: linear systems, zeros, degeneracy, zero dynamics, Markov parameters, singular value decomposition.
A time-varying switching plane design for variable structure control of the third order system with input constraint
|Andrzej Bartoszewicz and Aleksandra Nowacka|
(Technical University of £ód¼, Poland)
keywords: sliding mode control, variable structure systems, time-varying switching planes, switching surface design.