ROSENDO MACÍAS , José Antonio

En esta tesis se abordan, por un lado, un área concreta de aplicación de la Transformada Discreta de Fourier (DFT): la relativa a su uso para el cálculo de armónicos en problemas como el de las protecciones digitales. Es decir, su aplicación a la situación de ventana de móvil de datos y, en especial, al caso de que dichos datos sean reales. Al...

El trabajo aborda el cálculo de la beta del CAPM, entrando a analizar la problemática asociada, tanto en lo referente al intervalo sobre el que se realiza la evaluación de la rentabilidad, como en distintas alternativas que contemplan el carácter variable con el tiempo de la beta. Dichas alternativas han sido esencialmente los ajustes de...

Electric distribution companies have the responsibility of achieving the standards established by the respective regulating authorities in order to guarantee the highest quality of supply for their customers. To do so, they have to register all the electrical issues produced in the Distribution Network into a database. This paper uses this real...

In this paper, a comparison of existing method for harmonic calculation in digital relaying is presented. Pros and cons of recursive, approximate non-recursive and exact non-recursive algorithms are discussed. A compromise between speed and numerical robustness is obtained by a recently introduced modification of the pruned short-time discrete...

This paper presents a comparison between Kalman filter and the running DFT for the computation of harmonics in power systems applications. The performance of both filters is compared for events like voltage dips or those in which a decaying DC component is present. The comparison considers also the presence of higher order harmonics.