Browsing by Author "Mertzios, B. G."
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Adaptive asymptotic disturbance attenuation for a permanent magnet DC motor
Koumboulis, F. N.; Kouvakas, N. D.; Pantelios, A. G.; Mertzios, B. G. (2001)The problem of speed control of a permanent magnet DC motor with unknown parameters and unknown external load torque is formulated in the form of an adaptive control problem based on the design requirement of asymptotic ... 
Decoupling of singular systems via PD feedback
Koumboulis, F. N.; Mertzios, B. G. (1996)The problem of inputoutput decoupling of singular systems via proportional plus derivative (PD) feedback is solved. The necessary and sufficient condition for the problem to have a solution is established. A special ... 
Disturbance decoupling of singular systems via PD feedback
Koumboulis, F. N.; Mertzios, B. G. (1999)The problem of disturbance decoupling of singular systems via proportional plus derivative (PD) feedback is solved. The necessary and sufficient condition for the problem to be solvable is established as a rank condition ... 
Feedback controlling against chaos
Koumboulis, F. N.; Mertzios, B. G. (2000)A PD (Proportional plus Derivative) feedback controller is proposed for the control of chaotic dynamic systems. Using this feedback law the design requirement of command matching is satisfied independently of the perturbations ... 
Generalized Hankel matrix for the minimal realization of singular systems
Koumboulis, F. N.; Mertzios, B. G. (1996)A generalized Hankel matrix (in pencil form) is introduced. Based upon this definition the dimension of the minimal realization and the controllability and observability properties are related in a straight forward way. ... 
Numerical integration of fluid dynamics problems by discrete dynamical systems
Koumboulis, F. N.; Skarpetis, M. G.; Mertzios, B. G. (2000)A discrete time algorithm for the numerical solution of the NavierStokes equations, namely the set of nonlinear partial differential equations (PDEs) characterizing the how of viscous and compressible fluids is presented. ... 
On Kalman's controllability and observability criteria for singular systems
Koumboulis, F. N.; Mertzios, B. G. (1999)The controllability and observability properties of a singular system are extensively studied The definitions of controllability, Rcontrollability, and impulse controllability are introduced via characteristics of the ... 
On the Derivation of the Nonlinear Discrete Equations Numerically Integrating the Euler PDEs
Koumboulis, F. N.; Skarpetis, M. G.; Mertzios, B. G. (1998)The Euler equations, namely a set of nonlinear partial differential equations (PDEs), mathematically describing the dynamics of inviscid fluids are numerically integrated by directly modeling the original continuousdomain ... 
On the evaluation of the MD passive WDF discretization method for a flow through cylinder
Koumboulis, F. N.; Skarpetis, M. G.; Mertzios, B. G. (2000)In this paper a complete algorithm is developed to evaluate the multidimensional (MD) wave digital filter (WDF) method for the numerical integration of nonlinear (NL) partial differential equations (PDEs), and particularly ... 
PD feedback for decoupling and pole assignment of singular systems
Koumboulis, F. N.; Mertzios, B. G. (1998)The problem of reducing a multi inputmulti output system to many single inputsingle output systems, namely the problem of inputoutput decoupling, is studied for the case of singular systems i.e., for systems described ... 
Robust discretization algorithms for the numerical intergration of nonlinear PDEs with application to a generalized capacitor
Koumboulis, F. N.; Skarpetis, M. G.; Mertzios, B. G. (1998)Numerical integration of nonlinear (NL) partial differential equations (PDEs) is studied via approximating the original continuousdomain physical system by a discrete multidimensional (MD) and passive system, using ... 
Robust regional stabilisation of an electropneumatic actuator
Koumboulis, F. N.; Skarpetis, M. G.; Mertzios, B. G. (1998)Sufficient conditions are derived to solve the problem of robust regional stabilisation of linear systems with nonlinear, uncertain structure and uncertain order. The problem of increasing the speed and accuracy of uncertain ...