2018 (vol. 28) - Number 4

*T. Kaczorek:*

A new method for computation of positive realizations of fractional linear continuous-time systems

*A. Biswas, A. Sarkar:*

Development of dual hesitant fuzzy prioritized operators based on Einstein operations with their application to multi-criteria group decision making

*L. Li, R. Zhang, J. Wang, X. Shang:*

Some q-orthopair linguistic Heronian mean operators with their application to multi-attribute group decision making

*J. Duda:*

Lyapunov matrices approach to the parametric optimization of a system with two delays and a PD controller

*M. Lhous, M. Rachik, El M. Magri:*

Ideal observability for bilinear discrete-time systems with and without delays in observation

*P.T. Anh, A. Babiarz, A. Czornik, M. Niezabitowski:*

Variation of constant formulas for fractional difference equations

*K. Bingi, R. Ibrahim, M. Noh Karsiti, S. Miya Hassan, V. Rajah Harindran:*

A comparative study of 2DOF PID and 2DOF fractional order PID controllers on a class of unstable systems

ACS Abstract:

**2010 (Volume 20)**

Number 3

**Observer state feedback control of discrete-time systems with state equality constraints**

D. Krokavec(Technical University of Kosice, Kosice, Slovak Republic) | A. Filasova(Technical University of Kosice, Kosice, Slovak Republic) |

**keywords:** equality constraints, eigenstructure, assignment, state feedback

**Computation of positive realization of MIMO hybrid linear systems in the form of second Fornasini-Marchesini model**

T. Kaczorek (Bialystok Technical University, Bialystok, Poland) | L. Sajewski(Bialystok Technical University, Bialystok, Poland) |

**keywords:** hybrid, 2D system, positive, realization, existence, computation

**Numerical simulation of feedback controlled fluid-induced instabilities in rotor system supported by hydrodynamic bearings**

P. Ferfecki (Center of Advanced Innovation Technologies, SIMD, VSB-TUO, Ostrava, Czech Republic) | R. Sikora, Z. Poruba(Department of Mechanics, VSB-TUO, Ostrava, Czech Republic) |

**keywords:** rotor system, hydrodynamic bearing instability, kinematic excitation

**Robust output feedback Model Predictive Control design**

V. Vesely (Slovak University of Technology, Bratislava, Slovak Republic) | D. Rosinova(Slovak University of Technology, Bratislava, Slovak Republic) |

**keywords:** model predictive control, robust control, parameter dependent quadratic stability, Lyapunov function, polytopic system, decentralized control

**Feedback control of three-Level PWM rectifier: Application to the stabilization of DC Voltages of five-level NPC active power filter**

T. Abdelkrim, K. Benamrane(Applied Research Unit on Renewable Energies, Industrial Zone, Ghardaia, Algeria) | E.M. Berkouk(Polytechnic National School, Algiers, Algeria) | T. Benslimane(University of Msila, Algeria) |

**keywords:** active power filter, NPC multilevel inverter, feedback control, PWM current rectifier, clamping bridge filter

Decomposition of the pairs (A,B) and (A,C) of positive discrete-time linear systems

T. Kaczorek(Bialystok Technical University, Bialystok, Poland) |

A new test for checking the reachability (observability) of positive discrete-time linear systems is proposed. Conditions are established under which the unreachable pair (*A*,*B*) and the unobservable pair (*A*,*C*) of positive discrete-time system can be decomposed into reachable and unreachable parts and observable and unobservable parts, respectively. It is shown that the transfer matrix of the positive system is equal to the transfer matrix of its reachable (observable) part.

**keywords:** decomposition, positive linear, discrete-time, reachability, observability

**Stator inter-turn fault detection of an induction motor using neuro-fuzzy techniques**

R.N. Dash (National Institute of Technology, Rourkela, India) | B. Subudhi(National Institute of Technology, Rourkela, India) |

**keywords:** inter-turn short circuit fault, phase shifts, adaptive neural fuzzy inference systems (ANFISs), neural network, induction motor

<< Back