This correspondence presents a strategy for robust H/sub 2//H/sub /spl infin// filtering design, with regional pole placement, applied to discrete- or continuous-time linear time-invariant (LTI) systems polytope-bounded uncertainty. To overcome the conservatism of matrix inequality (LMI)-based formulations, proposed design approach is based on multiobjective optimization algorithm directly in space filter parameters. The 2/ and norms, computed all polytope vertices possible "worst case"...

This paper presents a computational tool intended to calculate and minimize the electric fields at ground level of high surge impedance loading transmission lines (TLs). type TL achieves higher power rates utilizing optimized configuration for phase conductors. method is advantageous over other actions taken by utility company, such as increasing maximum operation temperature line, size conductors, or utilization multiple conductors per phase. In this paper, an enhanced deep-cut ellipsoidal...

A strategy for robust H2/H∞ state-feedback control synthesis, with regional pole placement, applied to continuous- or discrete-time linear time-invariant uncertain systems is presented. It based on a multiobjective optimisation over the space of controller parameters. In case polytope-bounded uncertainty, H2 and H∞ norms, calculated in all polytope vertices possible ‘worst case’ interior points are taken as objectives. An posteriori exact cost norm computation branch-and-bound algorithm...

This note presents a new approach to robust D-stability analysis of linear time-invariant systems with polytope-bounded uncertainty. The proposed combines sufficient conditions for in terms feasibility problems matrix inequalities (LMI) constraints and polytope partition technique. If the initial does not attain D- stability condition, is successively subdivided until all subpolytopes case robustly D-stable uncertain system, or it found subpolytope vertex that regional pole-placement...

An approach to compute the ℋ2- or ℋ∞-guaranteed costs with any prescribed accuracy is presented. The proposed can be applied uncertain state–space models of linear time-invariant systems, where system matrices depend on parameters vary in a polytopic domain space matrices. developed based new implementation branch-and-bound algorithm upper-bound functions matrix inequality (LMI) characterisations. branch operation subdivision technique that kind polytope shape, not restricted hyper-rectangle...

This article presents a simple efficient algorithm for the subdivision of d -dimensional simplex in k simplices, where is any positive integer number. The an extension Freudenthal's method. proposed deals with more general case subdivision, and considerably simpler than RedRefinementND implementation strategy. motivated by problem field robust control theory: computation tight upper bound dynamical system performance index means branch-and-bound algorithm.

This article presents a new approach for or robust model reduction uncertain systems based on an optimisation algorithm applied directly in the space of reduced-order parameters. The proposed can be to both polytopic affine parameter-dependent models as well continuous discrete-time systems.The developed procedure is capable computing fixed keeping original uncertainty structure. resulting guaranteed stable.

This article presents a new strategy to design robust model matching dynamic output-feedback controllers that guarantee tracking response specifications, disturbance rejection and noise attenuation. The proposed synthesis methodology, based on multi-objective optimisation problem, can be applied uncertain continuous or discrete-time linear time-invariant systems with polytopic uncertainty, leading both full-order reduced-order robust-performance controllers. objective functions represent the...

International Standards ANSI C84.1-2006 and IEEE std 1250-1995 specify the range of supply voltage to electronics equipment from 0.9 1.05 per-unit (pu) nominal voltage. From this information, it is possible feed with a level below without failures. The Conservation Voltage Reduction (CVR) technique that aims achieve reduction power consumption by reducing voltage, giving at customer location lowest compatible both values levels stipulated regulatory agency. It essential obtaining good model...

This paper presents a procedure for robust PID tuning based on non-convex optimization problem with H <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> and/or xmlns:xlink="http://www.w3.org/1999/xlink">∞</sub> performance criteria and regional pole placement. The uncertain system can be represented by polytopic or affine parameter-dependent models. efficiency of the proposed is illustrated two examples

This paper presents a computational tool intended to achieves optimal configurations of conductors with capacity transmission energy improved. arrangement is obtained by calculate and minimize electric fields at ground level High Surge Impedance Loading lines. typ e line has higher power rates utilizing optimized configuration for the conductors. In present work, an enhanced Deep Cut Ellipsoidal Method applied find new phase The suggested analyzed. proposed results in reduced profiles capacity.

This paper presents an algorithm for robust/spl Hscr//sub 2///spl /spl infin// state-feedback control synthesis, with regional pole placement, based on a multiobjective optimization non-smooth problem-solving capability. The problem is formulated the matrix coefficients as parameters. closed-loop performance obtained by means of proposed strategy assessed whole uncertainty-set through LMI-based 2/ and guaranteed cost computation. compared three former LMI approaches, systems polytope-bounded...

This work presents a mono-objective optimization for Yagi-Uda antenna applying the ellipsoid algorithm. For problems which objective function is not known, like that represents behavior, algorithm has some features make it more interesting compared to other methods. To obtain electromagnetic characteristics used electric field integral equation (Pocklington equation) numerically evaluated by Method of Moments (MoM). The leads geometry with superior directivity than those presented in...

The control of multivariable industrial processes is frequently performed using a multiloop configuration, in which several PID controllers are committed to different channels the plant. A difficulty with such strategy arises due interaction among loops, may cause action loop give rise significant disturbances other loops. In some cases, it mandatory consider decoupling that includes precompensator, or decoupler, guarantee acceptable This paper presents new robust synthesis procedure for...

This paper presents a new strategy for robust dynamic output-feedback control synthesis uncertain discrete-time linear time-invariant systems represented by polytopic models. It is proposed multiobjective optimization problem to guarantee tracking response specifications, disturbance rejection, and noise attenuation. The novelty consider as an additional objective function the minimization of ℌ <inf xmlns:mml="http://www.w3.org/1998/Math/MathML"...

Este trabalho apresenta o emprego do filtro de Kalman, implementado na forma um código programação em C, para processamento sinais provenientes microcontrolador (Arduino) e sensor IMU (MPU-6050) posicionamento referencial inercial corpo. Por intermédio aumenta-se a eficiência algoritmo aquisição dados, devido à fusão dados diferentes sensores (acelerômetro giroscópio) com tolerâncias requisitos desempenho. estudo é fundamental medir precisão ângulo inclinação, por exemplo, drones tipo...

This paper presents a less conservative approach to compute, with any prescribed accuracy, the H <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">∞</inf> guaranteed cost of time-delay continuous-time linear time-invariant systems subjected polytopic uncertainties. The proposed analysis is based on branch-and-bound algorithm that incorporates recent LMI-based formulation and new polytope partition strategy. In algorithm, upper bound function...

This paper presents a new strategy for robust dynamic output-feedback control synthesis uncertain continuous-time linear time-invariant systems represented by polytopicmodels. It is considered multiobjective optimization problem to guarantee tracking response specifications, disturbance rejection, and noise attenuation. The controller design criterion minimize the H <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">∞</sub> -norm of error between...