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A novel approach for profile reconstruction using a Sources Reconstruction Method is presented. The idea is the calculation of the fields radiated by the reconstructed equivalent currents inside the currents domain. Profile reconstruction accuracy is improved by combining multiple incidences and frequencies. The main advantage with respect to inverse source-based techniques is the computational cost...
In this paper, an analysis of the complex voltage unbalance factor (CVUF) in three-phase lines is offered, in order to orientate future experiments in the study of the effects of voltage unbalance. The geometrical loci for constant magnitudes of the CVUF are presented, considering that the angles of the voltages are constant, and considering that the magnitudes of the voltages are constant. Furthermore,...
An obstacle detection and tracking system using a 2D laser sensor and the Kalman filter is presented. This filter is not very efficient in case of severe disturbances in the measured position of the obstacle, as for instance, when an object being tracked is behind a barrier, thus interrupting the laser beam, making it impossible to receive the sensor information about its position. This work suggests...
This paper presents the main aspects observed in analyzing Complex Voltage Unbalance Factor (CVUF) behavior resulting from the variation of voltage magnitudes and angles. The goal is to identify possible incoherencies regarding the use of the CVUF, and also to investigate whether this factor is more sensitive to variations in magnitude or angles under various voltage unbalance conditions. This study...
This paper presents the experimental results of the real time estimation of the wind speed for a wind turbine. In order to estimate the wind speed, an adaptive observer is employed. A wind turbine emulator was designed for validating the theoretical results. The wind turbine emulator is able to simulate the dynamics of a real wind turbine. For emulation purposes the wind speed is considered as a known...
Variable neighbourhood search is a metaheuristic combining three components: generation, improvement, and shaking components. In this paper, we describe a continuous variable neighbourhood search algorithm based on three specialised evolutionary algorithms, which play the role of each aforementioned component: 1) an EA specialised in generating a good starting point as generation component, 2) an...
This paper presents the design and application of an adaptative control method for a bilateral system of teleoperation. The scheme and control of algorithm have been formulated in the state space following a control technique of the master and the slave state convergence. Based on the mentioned control scheme, gains on the control loop in order to obtain a stable bilateral system with the desired...
The present work deals with the simultaneous control and identification of a rotational mechanical system constituted by a tandem connection of disks and rotational springs. We consider the rotational system to be controlled as constituted by the first disk alone. This is to be modeled by a simple second order controlled dynamics affected by unknown perturbations arising from the cascade attachment...
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