2020 (vol. 30) - Number 4
A.B. Malinowska, R. Kamocki, R. Almeida, T. Odzijewicz:
On the existence of optimal consensus control for the fractional Cucker--Smale model
R. Grymin, W. Bożejko, J. Pempera, M. Wodecki, Z. Chaczko:
Algorithm for solving the Discrete-Continuous Inspection Problem
T. Kaczorek, A. Ruszewski:
Global stability of discrete-time nonlinear systems with descriptor standard and fractional positive linear parts and scalar feedbacks
R. Arora, K. Gupta:
Fuzzy goal programming technique for multi-objective indefinite quadratic bilevel programming problem
P. Nowak, J. Czeczot, P. Grelewicz:
Tuning rules for industrial use of the second-order Reduced Active Disturbance Rejection Controller
M.I. Gomoyunov:
Optimal control problems with a fixed terminal time in linear fractional-order systems
Muhafzan, A. Nazra, L. Yulianti, Zulakmal, R. Revina:
On LQ optimization problem subject to fractional order irregular singular systems
M. Blizorukova, V. Maksimov:
On one algorithm for reconstruction of an disturbance in a linear system of ordinary differential equations
ACS Abstract:
Number 3
Controllers of the boost DC-DC converter accounting its minimum- and nonminimum-phase nature

R. Gessing (Silesian University of Technology, Gliwice, Poland) |
keywords: nonlinear systems, minimum/nonminimum phase systems, switched systems, PWM modulation, power electronics
LQ optimal and reaching law based design of sliding mode supply policy for inventory management systems

P. Ignaciuk, A. Bartoszewicz (Technical University of Lodz, Lodz, Poland) |
keywords: sliding-mode control, inventory control, discrete-time systems
Optimal distributed control problems of retarded parabolic systems

A. Kowalewski, A. Krakowiak (AGH University of Science and Technology, Cracow, Poland) |
keywords: distributed control, parabolic systems, time lags, linear quadratic problem, quadratic programming method
Pointwise completeness and pointwise degeneracy of standard and positive fractional linear systems with state-feedbacks

T. Kaczorek (Białystok Technical University, Białystok, Poland) |
keywords: pointwise completeness, pointwise degeneracy, positive fractional linear system, feedback
Pole placement method for DC motor torque controller

G. Sieklucki (AGH University of Science and Technology, Cracow, Poland) |
The work describes the use of pole placement state-space method for parametric optimization of motor torque controller. Presented method is universal for any type of mathematical model in contrast to standard optimization (optimal shape or optimal modulus criterion). The general oscillatory element is analyzed. Mathematical models of separately excited and brushless DC motors are compared. Ready to use relationship for parametric optimization of motor torque controller is presented. The results of the simulation, in the environment Matlab-Simulink, of the closed-loop control system are shown.
keywords: electric drive, oscillatory element, motor torque controller, state-space, pole placement, normalized Bessel polynomials, separately excited DC motor (brush), brushless DC (BLDC) motor
Analytical and neuro-fuzzy modeling for fault detection and identification for nonlinear systems: application to robot manipulator

M.S. Lazeregue, H. Salhi (Laboratoire Systemes Dept. Electonique, Universite Saad Dahlab, Soumaa, Blida, Algerie) | M. Tadjine (Process Conrol Laboratory. Dept E.E. ENP, Alger, Algerie) |
keywords: dynamical system, robot manipulator, neuro-fuzzy modeling, identification, error compensation, fault detection and identification
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